TECHNICAL MANUAL - BVT Partners OÜ

Manual No.'11•SRK-T-105TECHNICAL MANUALINVERTER WALL MOUNTED TYPERESIDENTIAL AIR-CONDITIONERS(Split system, air to air heat pump type)SRK63ZK-S71ZK-S80ZK-S

CONTENTS1. SPECIFICATIONS ........................................................................................ 32. EXTERIOR DIMENSIONS ......................................................................... 6(1) Indoor units .......................................................................................... 6(2) Outdoor units ....................................................................................... 7(3) Remote controller ................................................................................. 83. ELECTRICAL WIRING .............................................................................. 10(1) Indoor units .......................................................................................... 10(2) Outdoor units ....................................................................................... 114. NOISE LEVEL ............................................................................................ 125. PIPING SYSTEM ...................................................................................... 246. RANGE OF USAGE & LIMITATIONS'10 • SRK-T-105'11 • SRK-T-105..................................................... 25.................................. 39....................................................... 40..................... 53- 1 -- -7. CAPACITY TABLES ................................................................................... 278. APPLICATION DATA .................................................................................. 28(1) Installation of indoor unit ...................................................................... 28(2) Installation of outdoor unit .................................................................. 329. OUTLINE OF OPERATION CONTROL BY MICROCOMPUTER ............... 39(1) Operation control function by remote controller(2) Unit ON/OFF button ........................................................................... 40(3) Auto restart function(4) Custom cord switching procedure......................................................................... 40(5) Selection of the annual cooling function .............................................. 41(6) Flap and louver control ........................................................................... 41(7) Timer operation .................................................................................. 42(8) Outline of heating operation ................................................................ 43(9) Outline of cooling operation ............................................................... 44(10) Outline of automatic operation ........................................................... 44(11) Protective control function ................................................................... 4510. MAINTENANCE DATA ............................................................................... 52(1) Cautions ............................................................................................. 52(2) Items to check before troubleshooting ................................................. 52(3) Troubleshooting procedure (If the air conditioner does not run at all) ........ 52(4) Troubleshooting procedure (If the air conditioner runs)(5) Self-diagnosis table ............................................................................. 54(6) Service mode (Trouble mode access function) ................................... 55(7) Inspection procedures corresponding to detail of trouble .................... 63

(8) Phenomenon observed after shortcircuit, wire breakage on sensor ......... 67(9) Checking the indoor electrical equipment ........................................... 68(10) How to make sure of wireless remote controller .................................. 69(11) Outdoor unit inspection points .............................................................. 7011. OPTIONAL PARTS ....................................................................................... 7211.1 Instullation of wired remote controller (RC-E4)11.2 Interface kit (SC-BIKN-E) ..................................................................... 7811.3 Super link E board (SC-ADNA-E) ......................................................... 82■How to read the model nameExample:SRK 63 Z K-S'10 • SRK-T-105'11 • SRK-T-105................................. 72Series codeInveter typeProduct capacity (Cooling capacity : 6.3kW)Model name SRK : Wall mounted typeSRC : Outdoor unit- 2 -- -

1. SPECIFICATIONS Adapted to RoHS directive'11 • SRK-T-105SRK63ZK-S SRK63ZK-S SRC63ZK-S RWA000Z235 C- -

'11 • SRK-T-105Adapted to RoHS directiveSRK71ZK-S SRK71ZK-S SRC71ZK-S RWA000Z235 C- -

'11 • SRK-T-105Adapted to RoHS directiveSRK80ZK-S SRK80ZK-S SRC80ZK-S RWA000Z235 C- -

554191090109864443.555318248SymbolABCDEFG3ContentGas pipingφ15.88(5/8")(Flare)Liquid pipingφ6.35(1/4")(Flare)Hole on wall for right rear piping(φ65)Hole on wall for left rear piping(φ65)Drain hoseVP16Outlet for wiringOutlet for piping(on both side)FWireless remote controllerModels SRK63ZK-S, 71ZK-S, 80ZK-S2. EXTERIOR DIMENSIONS(1) Indoor units60(Service space)4-12X18(Slot hole)Outlet for down piping(Refer to the above view)Installation plate(Service space)50 106886106244 610 244349 4502995050Unit100(Service space)G55960Wired Remote controller(Option)15017.349.5225 46221.5D25 2543 65301.8 8.5120 19RKW000Z40144.553.56-5X17.5(Slot hole)E- - '11 • SRK-T-105BA633.5703.5792Space for installation and service when viewing from the front77C44.5(Service space)157.7Note(1)The model name label is attachedon the underside of the panel.Unit:mm

SymbolContentA Service valve connection(gas side) φ15.88(5/8")(Flare)B Service valve connection(liquid side) φ6.35(1/4")(Flare)C Pipe/cable draw-out holeD Drain discharge hole φ20 x 3 placesE Anchor bolt hole M10 x 4 places34047.52-R7.5223310E1560380418Note(1)It must not be surrounded by walls on four sides.(2)The unit must be fixed with anchor bolts. An anchor boltmust not protrude more than 15mm.(3)Where the unit is subjected to strong winds, lay it in such adirection that the blower outlet faces perpendicularly to thedominant wind direction.(4)Leave 1m or more space above the unit.(5)A wall in front of the blower outlet must not exceed theunit's height.(6)The model name label is attached on the rear panel.Models SRC63ZK-S, 71ZK-S, 80ZK-S(2) Outdoor units6120L2IntakeL3L4(Service space)D61150 580 15088088273019Terminal blockIntakeOutletL1Service panelDimensionsL1L2L3Minimum installation spaceExamples ofinstallationⅠOpen300100ⅡOpen250150Ⅲ500Open100RCR000Z00475024103.5 48.5- - '11 • SRK-T-105165.5 25BA30°C30°L4250250250Unit:mm

(3) Remote controller(a) Wireless remote controller'11 • SRK-T-105Unit: mm60 17.3- -150

'11 • SRK-T-105(b) Wired remote controller (option parts)Interface kit (SC-BIKN-E) is required to use the wired remote controller.Wiring outletCut off the upper thin part of remote control lower case with a nipper or knife,Exposed mountingand grind burrs with a file etc.In case of pulling out In case of pulling out0.3mm 2 ×2 cores. 48from upper leftfrom centerIn case of pulling outUpper partfrom centerLower caseL C DLower partTEMPON/OFFUpper SheathUpper SheathUpper caceUpper caceBoardBoardX YX YLower WiringLower WiringX, Y Terminal blockIn case of pulling out from In case of pulling out from centerAttach M3 screwupper leftwith washer120The peeling-off length of sheathPulling out from upper left Pulling out from centerX wiring : 215mm X wiring : 170mmY wiring : 195mm Y wiring : 190mmThe peeling-off lengthof sheathEmbedded mountingRemote control installation dimensionsWall surface120RemoteTighten the screws aftercontrol46cutting off the thin part ofoutline23screw mounting part.Wiring44Wiring oulet11.5 11Electrical box 12×7 Slot holeNot includedInstallation hole9.5×5 Slot hole 4places1 Installation screw for remote control19M4 Screw (2 pieces)Unit:mmWiring specifications(1) If the prolongation is over 100m, change to the size below.But, wiring in the remote controller case should be under 0.5mm 2 . Change the wire size outside ofthe case according to wire connecting. Waterproof treatment is necessary at the wire connectingsection. Be careful about contact failure.LengthWiring thickness100 to 200m 0.5mm 2 ×2 coresUnder 300m 0.75mm 2 ×2 coresUnder 400m 1.25mm 2 ×2 coresUnder 600m2.0mm 2 ×2 coresPJZ000Z274In case of pulling outfrom upper left83.54245120

DISPLAYWIRELESS RECEIVERBACK-UP SWTh1Th2 1Th2 2ttt8CNECNGPRINTEDCIRCUITBOARDDSCNX1CNX2555MMMLM1LM2SM1ItemCNE-CNX2FMISM1LM1,2Th1Th21,2Th3DSFTVaDescriptionConnectorFan motorFlap motorLouver motorRoom temp. sensorHeat exch. sensorHumidity sensorDiode stackFuseTerminal blockVaristorModels SRK63ZK-S, 71ZK-S, 80ZK-S3. ELECTRICAL WIRING(1) Indoor unitsTh32CNFINTERFACE KITSC-BIKN-E5CNSColor MarksY/GGMarkBKBlackColorHEATEXCHANGERWHRDBKS/NJLUVaF250V3.15ACNU13456RDBKWHYBL1TMFMIPower source~220/230/240V 50HzTO OUTDOOR UNITBLRDWHYY/GBlueRedWhiteYellowYellow/GreenRWA000Z400- 10 - '11 • SRK-T-105HEATEXCHANGER2/N3POWER WIRESSIGNAL WIRE1 2/N3

TO INDOOR UNITPOWER WIRES 1 2[ 3 ]NSIGNAL WIREPOWER SOURCE~220/230/240V 50HzTERMINALBLOCKT1TERMINALBLOCKT2LN12N3FUSE250V 20A(WH)(Y/G)(Y/G)PWB ASSY (SUB)(BK) RINR O(WH) SINS O(BR)ROUTS-1F10250V 10A(Y/G) G1CNMAINCN20S(RD)(BK)R(WH) S(WH) S-2(BK)CNSUB(RD) C-2(Y)T1CNTHL(OR)T2F8250V 20AACTIVEFILTERUNITPWB ASSY (MAIN)+ +CNEEV+F1250V 2AF2250V 20ASWITCHING POWERCIRCUITF3 250V 1APOWERTRANSISTORPNUNVNWUVWCNFANUVW(RD)(WH)(BK)M3~CMMFMoModels SRC63ZK-S, 71ZK-S, 80ZK-S(2) Outdoor units2 2 2t?Kt?Kt?KM20STH1 TH2 TH3EEV5 or 6 wiresPower cable, indoor-outdoor connecting wiresModelMAX running current(A)Power cable size(mm 2 )Power cable length(m)indoor-outdoorwire size x numberEarth wire size(mm)CMItemCompressor motorDescriptionMarkBKColorBlackRWC000Z240- 11 - '11 • SRK-T-10563718017 2.5 30 1.5mm 2x 4 1.5mm2The specifications shown in the above table are for units without heaters. For units with heaters, referto the installation instructions or the construction instructions of the indoor unit.Switchgear of Circuit breaker capacity which is calculated from MAX. over current should be chosenalong the regulations in each country.The cable specifications are based on the assumption that a metal or plastic conduit is used with nomore than three cables contained in a conduit and a voltage drop is 2%. For an installation fallingoutside of these conditions, please follow the internal cabling regulations. Adapt it to the regulationin effect in each country.CN20SCNTHCNEEVCNFANEEVFMoLT1,2TH1TH2TH320SConnectorElectric expansion valve(coil)Fan motorReactorTerminal blockHeat exchanger sensor(outdoor unit)Outdoor air temp.sensorDischarge pipe temp.sensorSolenoid valve for 4 way valveBRORRDWHYY/GBrownOrangeRedWhiteYellowYellow/Green

4. NOISE LEVEL(1) Model SRK63ZK-S(a) Max value in Hi MODE(Indoor Unit)ModelNoiseLevel(Outdoor Unit)ModelNoiseLevel'11 • SRK-T-105Condition ISO-T1,JIS C9612●Mike position as below1mSRK63ZK-S0.8mUnitCooling 47 dB(A)Mike position(Center & Low points)Heating 44 dB(A)× ...... Cooling Heating●Mike position: at highest noise level in position as mentined belowDistance from front side 1m●Mike position as below1m0.8mUnitMike position(Center & Low points) SRC63ZK-S●Mike position: at highest noise level in position as mentined belowCooling 49 dB(A)Distance from front side 1mHeating 50 dB(A)× ...... Cooling Heating - 12 - ISC10097

'11 • SRK-T-105(b) Max value in Me MODECondition ISO-T1,JIS C9612●Mike position as belowSRK63ZK-S1mCooling 43 dB(A)0.8mHeating 41 dB(A)UnitMike position(Center & Low points)× ...... Cooling Heating●Mike position: at highest noise level in position as mentined belowDistance from front side 1m●Mike position as below1m0.8mUnitMike position(Center & Low points) SRC63ZK-S●Mike position: at highest noise level in position as mentined belowCooling 49 dB(A)Distance from front side 1mHeating 56 dB(A)× ...... Cooling Heating - 13 - ISC10097(Indoor Unit)ModelNoiseLevel(Outdoor Unit)ModelNoiseLevel

'11 • SRK-T-105(c) Max value in Lo MODECondition ISO-T1,JIS C9612●Mike position as belowSRK63ZK-S1m0.8mCooling 37 dB(A)UnitMike positionHeating 36 dB(A)(Center & Low points)× ...... Cooling Heating●Mike position: at highest noise level in position as mentined belowDistance from front side 1m●Mike position as below1m0.8mUnitMike position(Center & Low points) SRC63ZK-S●Mike position: at highest noise level in position as mentined belowCooling 49 dB(A)Distance from front side 1mHeating 54 dB(A)× ...... Cooling Heating ISC10097- 14 -(Indoor Unit)ModelNoiseLevel(Outdoor Unit)ModelNoiseLevel

'11 • SRK-T-105(d) Max value in ULo MODECondition ISO-T1,JIS C9612●Mike position as belowSRK63ZK-S1m0.8mCooling 26 dB(A)UnitMike positionHeating 33 dB(A)(Center & Low points)× ...... Cooling Heating●Mike position: at highest noise level in position as mentined belowDistance from front side 1m●Mike position as below1m0.8mUnitMike position(Center & Low points) SRC63ZK-S●Mike position: at highest noise level in position as mentined belowCooling 41 dB(A)Distance from front side 1mHeating 41 dB(A)× ...... Cooling Heating ISC10097- 15 -(Indoor Unit)ModelNoiseLevel(Outdoor Unit)ModelNoiseLevel

(2) Model SRK71ZK-S(a) Max value in Hi MODE(Indoor Unit)ModelNoiseLevel(Outdoor Unit)ModelNoiseLevel'11 • SRK-T-105Condition ISO-T1,JIS C9612●Mike position as below1mSRK71ZK-S0.8mCooling 49 dB(A)UnitMike positionHeating 46 dB(A)(Center & Low points)× ...... Cooling Heating●Mike position: at highest noise level in position as mentined belowDistance from front side 1m●Mike position as below1m0.8mUnitMike position(Center & Low points) SRC71ZK-S●Mike position: at highest noise level in position as mentined belowCooling 53 dB(A)Distance from front side 1mHeating 51 dB(A)× ...... Cooling Heating ISC10097

'11 • SRK-T-105(b) Max value in Me MODECondition ISO-T1,JIS C9612●Mike position as belowSRK71ZK-S1mCooling 45 dB(A)0.8mUnitHeating 43 dB(A)Mike position(Center & Low points)× ...... Cooling Heating●Mike position: at highest noise level in position as mentined belowDistance from front side 1m●Mike position as below1m0.8mUnitMike position(Center & Low points) SRC71ZK-S●Mike position: at highest noise level in position as mentined belowCooling 52 dB(A)Distance from front side 1mHeating 56 dB(A)× ...... Cooling Heating ISC10097(Indoor Unit)ModelNoiseLevel(Outdoor Unit)ModelNoiseLevel

'11 • SRK-T-105(c) Max value in Lo MODECondition ISO-T1,JIS C9612●Mike position as belowSRK71ZK-S1m0.8mCooling 39 dB(A)UnitMike positionHeating 38 dB(A)(Center & Low points)× ...... Cooling Heating●Mike position: at highest noise level in position as mentined belowDistance from front side 1m●Mike position as below1m0.8mUnitMike position(Center & Low points) SRC71ZK-S●Mike position: at highest noise level in position as mentined belowCooling 49 dB(A)Distance from front side 1mHeating 56 dB(A)× ...... Cooling Heating ISC10097(Indoor Unit)ModelNoiseLevel (Outdoor Unit)ModelNoiseLevel

'11 • SRK-T-105(d) Max value in ULo MODECondition ISO-T1,JIS C9612●Mike position as belowSRK71ZK-S1m0.8mCooling 26 dB(A)UnitMike positionHeating 35 dB(A)(Center & Low points)× ...... Cooling Heating●Mike position: at highest noise level in position as mentined belowDistance from front side 1m●Mike position as below1m0.8mUnitMike position(Center & Low points) SRC71ZK-S●Mike position: at highest noise level in position as mentined belowCooling 41 dB(A)Distance from front side 1mHeating 42 dB(A)× ...... Cooling Heating ISC10097(Indoor Unit)ModelNoiseLevel(Outdoor Unit)ModelNoiseLevel

(3) Model SRK80ZK-S(a) Max value in Hi MODE(Indoor Unit)ModelNoiseLevel'11 • SRK-T-105Condition ISO-T1,JIS C9612●Mike position as below1mSRK80ZK-S0.8mUnitCooling 51 dB(A)Mike position(Center & Low points)Heating 48 dB(A)× ...... Cooling Heating●Mike position: at highestnoise level in position as mentined belowDistance from front side 1m●Mike position as below1m0.8mUnitMike position(Center & Low points) SRC80ZK-S●Mike position: at highest noise level in position as mentined belowCooling 56 dB(A)Distance from front side 1mHeating 54 dB(A)× ...... Cooling Heating ISC10097- 20 - (Outdoor Unit)ModelNoiseLevel

'11 • SRK-T-105(b) Max value in Me MODECondition ISO-T1,JIS C9612(Indoor Unit)●Mike position as below1mModelSRK80ZK-S0.8mNoise Cooling 47 dB(A)UnitMike positionLevel Heating 45 dB(A)(Center & Low points)× ...... Cooling Heating●Mike position: at highest noise level in position as mentined belowDistance from front side 1m●Mike position as below1m0.8mUnitMike position(Center & Low points) (Outdoor Unit)ModelSRC80ZK-S●Mike position: at highest noise level in position as mentined belowNoise Cooling 52 dB(A)Distance from front side 1mLevel Heating 56 dB(A)× ...... Cooling Heating ISC10097

'11 • SRK-T-105(c) Max value in Lo MODECondition ISO-T1,JIS C9612●Mike position as below1mSRK80ZK-S0.8mCooling 41 dB(A)UnitMike positionHeating 40 dB(A)(Center & Low points)× ...... Cooling Heating●Mike position: at highest noise level in position as mentined belowDistance from front side 1m●Mike position as below1m0.8mUnitMike position(Center & Low points) SRC80ZK-S●Mike position: at highest noise level in position as mentined belowCooling 49 dB(A)Distance from front side 1mHeating 56 dB(A)× ...... Cooling Heating ISC10097(Indoor Unit)ModelNoiseLevel(Outdoor Unit)ModelNoiseLevel

'11 • SRK-T-105(d) Max value in ULo MODECondition ISO-T1,JIS C9612●Mike position as below1mSRK80ZK-S0.8mCooling 26 dB(A)UnitMike positionHeating 37 dB(A)(Center & Low points)× ...... Cooling Heating●Mike position: at highest noise level in position as mentined belowDistance from front side 1m●Mike position as below1m0.8mUnitMike position(Center & Low points) SRC80ZK-S●Mike position: at highest noise level in position as mentined belowCooling 41 dB(A)Distance from front side 1mHeating 43 dB(A)× ...... Cooling Heating ISC10097- 23 -(Indoor Unit)ModelNoiseLevel(Outdoor Unit)ModelNoiseLevel

5. PIPING SYSTEMModels SRK63ZK-S, 71ZK-S, 80ZK-SHumiditysensor(Th3)Room temp.sensor(Th1)Indoor unitFlareconnectionHeatexchangersensor(Th22)HeatexchangerHeatexchangersensor(Th21)Flare connectionGas pipie( 15.88)Liquidpipe( -6.35)Outdoor unitService valve(Gas)Check joint4way valveService valve(Liquid)Strainer'11 • SRK-T-105Cooling cycleHeating cycleOutdoor airtemp. sensor(TH2)(TH3)HeatexchangerAccumlatorHeatexchangersensor(TH1)ElectronicCapillary tubeexpansion valve(EEV)- 24 -Discharge pipetemp. sensorMufflerCompressorCapillary tube

6. RANGE OF OF USAGE & LIMITATIONS & '11 • SRK-T-105ModelsSRK63ZK-S,71ZK-S,80ZK-SItemCooling operation : Approximately 18 to 32℃ D.B.Indoor return air temperatureHeating operation : Approximately 10 to 27℃ D.B.(Upper, lower limits)(Refer to the selection chart)Cooling operation : Approximately -15 to 46℃ D.B.Outdoor air temperatureHeating operation : Approximately -15 to 21℃ D.B.(Upper, lower limits)(Refer to the selection chart)Refrigerant line (one way) lengthMax. 30mVertical height difference betweenMax. 20m (Outdoor unit is higher)outdoor unit and indoor unitMax. 20m (Outdoor unit is lower)Power source voltage Rating ±10%Voltage at startingMin. 85% of ratingFrequency of ON-OFF cycleMax. 4 times/h(Inching prevention 10 minutes)ON and OFF intervalMin. 3 minutesSelection chartCorrect the cooling and heating capacity in accordance with the conditions as follows. The net cooling and heating capacity can beobtained in the following way.Net capacity = Capacity shown on speci-cation × Correction factors as follows.(1) Coefcient of cooling and heating capacity in relation to temperatures1.31.2Cooling1.11.0Heating0.90.80.70.6Applicable range46403530252620240-5Depends on installed situation-10-1514 16 18 20 22Indoor air W.B. temperature °C W.B.ISO-T1 Standard Condition2725201510-15 -10 -5 0 5 10 15ISO-T1 Standard ConditionOutdoor air W.B. temperature °C W.B.- 25 -Coefficient of cooling &Heating capacity inrelation to temperatureCooling operationOutdoor air D.B.temperature°C D. B.Heating operationIndoor air D.B.temperature°C D. B.

- 26 - '09•SRK-DB-087D'11 • SRK-T-105(2) Correction of cooling and heating capacity in relation to one way length of refrigerant pipingPiping length [m]CoolingHeating71.01.0100.991.0150.9751.0200.9651.0250.951.0300.9351.0(3) Correction relative to frosting on outdoor heat exchanger during heatingAir inlet temperature ofoutdoor unit in °C WB-15 -10 -9 -7 -5 -3 -1 1 3 5 or moreAdjustment coefficient 0.95 0.95 0.94 0.93 0.91 0.88 0.86 0.87 0.92 1.00How to obtain the cooling and heating capacitySRK63ZK-S6300SRK63ZK-S= 6143

'11 • SRK-T-1057. CAPACITY TABLESModel SRK63ZK-S Cool ModeHeat ModeIndoor air tempOutdoorIndoor air tempOutdoor 21˚CDB 23˚CDB 26˚CDB 27˚CDB 28˚CDB 31˚CDB 33˚CDB Air flowAir flowair temp.air temp. 14˚CWB 16˚CWB 18˚CWB 19˚CWB 20˚CWB 22˚CWB 24˚CWB16˚CDB 18˚CDB 20˚CDB 22˚CDB 24˚CDBTC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC-15˚CWB 4.37 4.27 4.17 4.09 4.0010 7.10 5.45 7.43 5.35 7.70 5.53 7.83 5.45 7.97 5.38 8.20 5.52 8.42 5.33-10˚CWB 4.94 4.86 4.79 4.67 4.5712 6.97 5.38 7.30 5.29 7.59 5.48 7.73 5.41 7.87 5.34 8.11 5.49 8.34 5.30-5˚CWB 5.35 5.28 5.17 5.11 5.0314 6.84 5.31 7.18 5.23 7.48 5.43 7.62 5.36 7.77 5.29 8.02 5.43 8.26 5.27Hi0˚CWB 5.61 5.53 5.43 5.37 5.2916 6.70 5.24 7.04 5.16 7.37 5.38 7.52 5.32 7.66 5.25 7.93 5.40 8.17 5.25 20.5 5˚CWB 7.15 7.07 7.03 6.89 6.7918 6.56 5.17 6.91 5.09 7.25 5.32 7.40 5.26 7.55 5.18 7.83 5.36 8.08 5.22(m 3 /min)6˚CWB 7.27 7.18 7.10 7.01 6.9320 6.42 5.09 6.77 5.03 7.12 5.25 7.29 5.20 7.43 5.14 7.73 5.33 7.98 5.1910˚CWB 7.72 7.65 7.60 7.50 7.4222 6.28 5.02 6.62 4.95 6.99 5.20 7.17 5.15 7.31 5.10 7.62 5.29 7.88 5.1615˚CWB 8.40 8.33 8.27 8.18 8.10Hi 24 6.12 4.94 6.47 4.89 6.86 5.15 7.04 5.11 7.19 5.05 7.51 5.25 7.77 5.1220˚CWB 9.03 8.96 8.92 8.81 8.7418.5 26 5.97 4.86 6.32 4.82 6.73 5.09 6.92 5.06 7.06 5.00 7.40 5.21 7.67 5.08(m 3 /min) 28 5.81 4.79 6.16 4.74 6.59 5.04 6.79 5.01 6.93 4.96 7.28 5.17 7.55 5.0530 5.65 4.71 6.00 4.67 6.44 4.97 6.65 4.95 6.80 4.90 7.16 5.13 7.44 5.0132 5.49 4.63 5.83 4.59 6.30 4.91 6.51 4.89 6.66 4.85 7.03 5.08 7.32 4.9734 5.32 4.55 5.66 4.51 6.15 4.84 6.37 4.83 6.52 4.79 6.90 5.03 7.19 4.9335 5.23 4.51 5.57 4.48 6.07 4.81 6.30 4.80 6.45 4.76 6.84 5.01 7.13 4.9136 5.14 4.46 5.49 4.44 5.99 4.78 6.23 4.78 6.38 4.73 6.77 4.99 7.06 4.8838 4.97 4.38 5.31 4.36 5.83 4.71 6.08 4.71 6.23 4.67 6.64 4.93 6.93 4.8439 4.88 4.33 5.22 4.32 5.75 4.68 6.00 4.68 6.15 4.65 6.57 4.91 6.87 4.82Model SRK80ZK-S Cool Mode Heat ModeModel SRK71ZK-S Cool Mode Heat ModeIndoor air tempOutdoorIndoor air tempOutdoor 21˚CDB 23˚CDB 26˚CDB 27˚CDB 28˚CDB 31˚CDB 33˚CDB Air flowAir flowair temp.air temp. 14˚CWB 16˚CWB 18˚CWB 19˚CWB 20˚CWB 22˚CWB 24˚CWB16˚CDB 18˚CDB 20˚CDB 22˚CDB 24˚CDBTC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC-15˚CWB 4.92 4.82 4.70 4.61 4.5010 8.00 5.98 8.37 5.88 8.68 6.04 8.83 5.95 8.98 5.87 9.24 6.00 9.49 5.81-10˚CWB 5.57 5.47 5.40 5.26 5.1512 7.86 5.90 8.23 5.80 8.56 5.98 8.71 5.91 8.87 5.83 9.15 5.97 9.40 5.78-5˚CWB 6.03 5.94 5.82 5.76 5.6714 7.71 5.82 8.09 5.72 8.43 5.93 8.59 5.86 8.75 5.77 9.04 5.92 9.31 5.74Hi0˚CWB 6.32 6.23 6.12 6.05 5.9616 7.55 5.74 7.94 5.65 8.30 5.87 8.47 5.80 8.63 5.73 8.93 5.88 9.21 5.71 21.5 5˚CWB 8.06 7.96 7.92 7.76 7.6518 7.40 5.66 7.78 5.58 8.17 5.80 8.34 5.74 8.51 5.67 8.82 5.84 9.10 5.66(m 3 /min)6˚CWB 8.19 8.09 8.00 7.90 7.8020 7.24 5.57 7.62 5.51 8.03 5.74 8.21 5.69 8.38 5.61 8.71 5.80 8.99 5.6310˚CWB 8.70 8.62 8.56 8.45 8.3622 7.07 5.49 7.46 5.42 7.88 5.68 8.08 5.63 8.24 5.56 8.59 5.74 8.88 5.5815˚CWB 9.47 9.38 9.32 9.21 9.13Hi 24 6.90 5.40 7.29 5.34 7.73 5.61 7.94 5.56 8.10 5.50 8.46 5.69 8.76 5.5520˚CWB 10.17 10.09 10.05 9.93 9.8519.5 26 6.73 5.31 7.12 5.26 7.58 5.54 7.79 5.50 7.96 5.44 8.33 5.65 8.64 5.50(m 3 /min) 28 6.55 5.22 6.94 5.17 7.42 5.47 7.65 5.44 7.81 5.38 8.20 5.59 8.51 5.4630 6.37 5.13 6.76 5.08 7.26 5.40 7.50 5.37 7.66 5.32 8.07 5.55 8.38 5.3932 6.18 5.04 6.57 4.99 7.10 5.32 7.34 5.31 7.51 5.25 7.92 5.47 8.25 5.3534 5.99 4.94 6.38 4.91 6.93 5.25 7.18 5.24 7.35 5.19 7.78 5.42 8.11 5.3035 5.90 4.88 6.28 4.86 6.84 5.20 7.10 5.20 7.27 5.16 7.71 5.40 8.03 5.2836 5.80 4.84 6.18 4.80 6.75 5.16 7.02 5.15 7.19 5.11 7.63 5.37 7.96 5.2638 5.60 4.74 5.98 4.72 6.58 5.09 6.85 5.09 7.02 5.05 7.48 5.32 7.81 5.2239 5.50 4.70 5.88 4.67 6.48 5.06 6.76 5.06 6.93 5.02 7.40 5.30 7.74 5.19Indoor air tempOutdoorIndoor air tempOutdoor 21˚CDB 23˚CDB 26˚CDB 27˚CDB 28˚CDB 31˚CDB 33˚CDB Air flowAir flowair temp.air temp. 14˚CWB 16˚CWB 18˚CWB 19˚CWB 20˚CWB 22˚CWB 24˚CWB16˚CDB 18˚CDB 20˚CDB 22˚CDB 24˚CDBTC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC-15˚CWB 5.54 5.42 5.29 5.18 5.0610 9.01 6.77 9.43 6.65 9.78 6.85 9.95 6.75 10.12 6.64 10.42 6.81 10.70 6.59-10˚CWB 6.27 6.15 6.07 5.92 5.7912 8.85 6.68 9.28 6.57 9.64 6.77 9.82 6.68 9.99 6.59 10.30 6.77 10.59 6.55-5˚CWB 6.79 6.69 6.55 6.48 6.3714 8.68 6.59 9.11 6.49 9.50 6.71 9.68 6.63 9.86 6.55 10.19 6.72 10.49 6.52Hi0˚CWB 7.12 7.01 6.89 6.81 6.7116 8.51 6.50 8.94 6.41 9.35 6.65 9.54 6.57 9.72 6.49 10.07 6.67 10.37 6.47 23.5 5˚CWB 9.06 8.96 8.91 8.73 8.6118 8.34 6.40 8.77 6.31 9.20 6.58 9.40 6.51 9.58 6.43 9.94 6.63 10.25 6.43(m 3 /min)6˚CWB 9.21 9.10 9.00 8.89 8.7820 8.15 6.31 8.59 6.23 9.04 6.51 9.25 6.45 9.44 6.37 9.81 6.57 10.13 6.3810˚CWB 9.79 9.69 9.63 9.50 9.4122 7.97 6.22 8.41 6.15 8.88 6.44 9.10 6.38 9.29 6.31 9.68 6.52 10.00 6.3415˚CWB 10.65 10.56 10.48 10.37 10.27Hi 24 7.78 6.12 8.22 6.05 8.71 6.36 8.94 6.31 9.13 6.24 9.54 6.47 9.87 6.2920˚CWB 11.45 11.35 11.30 11.17 11.0821.0 26 7.58 6.02 8.02 5.96 8.54 6.28 8.78 6.24 8.97 6.17 9.39 6.41 9.73 6.25(m 3 /min) 28 7.38 5.91 7.82 5.86 8.36 6.20 8.62 6.17 8.81 6.11 9.24 6.36 9.59 6.1730 7.18 5.81 7.62 5.76 8.18 6.13 8.45 6.10 8.64 6.04 9.09 6.27 9.44 6.1232 6.97 5.71 7.40 5.67 8.00 6.04 8.27 6.02 8.46 5.96 8.93 6.22 9.29 6.0834 6.75 5.61 7.19 5.56 7.81 5.96 8.09 5.94 8.28 5.89 8.77 6.16 9.13 6.0335 6.64 5.55 7.08 5.52 7.71 5.92 8.00 5.91 8.19 5.86 8.68 6.14 9.05 6.0136 6.53 5.50 6.97 5.47 7.61 5.87 7.91 5.87 8.10 5.82 8.60 6.11 8.97 5.9838 6.31 5.39 6.74 5.37 7.41 5.77 7.72 5.77 7.91 5.72 8.43 6.05 8.80 5.9239 6.20 5.32 6.62 5.31 7.31 5.73 7.62 5.74 7.81 5.69 8.34 6.01 8.72 5.90ISC10091

8. APPLICATION DATA(1) Installation of indoor unitModels SRK63ZK-S, 71ZK-S, 80ZK-S• This installation manual illustrates the method of installing an indoorunit.• For electrical wiring work, please see instructions set out on thebackside.• For outdoor unit installation and refrigerant piping, please refer topage 23.• Read the “SAFETY PRECAUTIONS” carefully first of all and strictly follow itduring the installation work in order to protect yourself.• The precautionary items mentioned below are distinguished into two levels,WARNING and CAUTION .WARNING : Wrong installation would cause serious consequences suchas injuries or death.CAUTION : Wrong installation might cause serious consequencesdepending on circumstances.Both mentions the important items to protect your health and safety so strictlyfollow them by any means.• Be sure to confirm no anomaly on the equipment by commissioning after completedinstallation and explain the operating methods as well as the maintenancemethods of this equipment to the user according to the owner’s manual.SAFETY PRECAUTIONS• A wired remote control unit is supplied separately as an optional part.• When install the unit, be sure to check whether the selection ofinstallation place, power supply specifications, usage limitation (pipinglength, height differences between indoor and outdoor units, powersupply voltage and etc.) and installation spaces.• Keep the installation manual together with owner’s manual at a place whereany user can read at any time. Moreover if necessary, ask to hand them to anew user.• For installing qualified personnel, take precautions in respect to themselves byusing suitable protective clothing, groves, etc., and then perform theinstallation works.• Please pay attention not to fall down the tools, etc. when installing the unit atthe high position.• If unusual noise can be heard during operation, consult the dealer.• The meanings of “Marks” used here are as shown on the right:WARNINGNever do it under anycircumstances.RKW012A400Always do it according to theinstruction.• Installation must be carried out by the qualified installer.• Tighten the flare nut by torque wrench with specified method.If you install the system by yourself, it may cause serious trouble such as If the flare nut were tightened with excess torque, this may cause burst andwater leaks, electric shocks, fire and personal injury, as a result of a refrigerant leakage after a long period.system malfunction.• The electrical installation must be carried out by the qualified• Install the system in full accordance with the installation manual. electrician in accordance with “the norm for electrical work” andIncorrect installation may cause bursts, personal injury, water leaks, electric “national wiring regulation”, and the system must be connected toshocks and fire.the dedicated circuit.• Be sure to use only for household and residence.Power supply with insufficient capacity and incorrect function done byIf this appliance is installed in inferior environment such as machine shop improper work can cause electric shocks and fire.and etc., it can cause malfunction.• Be sure to shut off the power before starting electrical work.• Use the original accessories and the specified components for Failure to shut off the power can cause electric shocks, unit failure orinstallation.incorrect function of equipment.If parts other than those prescribed by us are used, It may cause water • Be sure to use the cables conformed to safety standard and cableleaks, electric shocks, fire and personal injury.ampacity for power distribution work.• Install the unit in a location with good support.Unconformable cables can cause electric leak, anomalous heat productionUnsuitable installation locations can cause the unit to fall and cause or fire.material damage and personal injury.• This appliance must be connected to main power supply by means• Ventilate the working area well in the event of refrigerant leakage of a circuit breaker or switch (fuse:20A) with a contact separation ofduring installation.at least 3mm.If the refrigerant comes into contact with naked flames, poisonous gas is • When plugging this appliance, a plug conforming to the normproduced.IEC60884-1 must be used.• When installing in small rooms, take prevention measures not to • Use the prescribed cables for electrical connection, tighten theexceed the density limit of refrigerant in the event of leakage, cables securely in terminal block and relieve the cables correctly toreferred by the formula (accordance with ISO5149).prevent overloading the terminal blocks.If the density of refrigerant exceeds the limit, please consult the dealer and Loose connections or cable mountings can cause anomalous heatinstall the ventilation system, otherwise lack of oxygen can occur, which production or fire.can cause serious accident.• Arrange the wiring in the control box so that it cannot be pushed up• After completed installation, check that no refrigerant leaks from further into the box. Install the service panel correctly.the system.Incorrect installation may result in overheating and fire.If refrigerant leaks into the room and comes into contact with an oven or • Be sure to switch off the power supply in the event of installation,other hot surface, poisonous gas is produced.inspection or servicing.• Use the prescribed pipes, flare nuts and tools for R410A.If the power supply is not shut off, there is a risk of electric shocks, unitUsing existing parts (for R22 or R407C) can cause the unit failure and failure or personal injury due to the unexpected start of fan.serious accidents due to burst of the refrigerant circuit.- 28 - '11 • SRK-T-105• Do not put the drainage pipe directly into drainage channels where • Do not processing, splice the power cord, or share a socket withpoisonous gases such as sulphide gas can occur.other power plugs.Poisonous gases will flow into the room through drainage pipe andThis may cause fire or electric shock due to defecting contact, defectingseriously affect the user’s health and safety. This can also cause the insulation and over-current etc.corrosion of the indoor unit and a resultant unit failure or refrigerant leak. • Do not bundling, winding or processing for the power cord. Or, do• Ensure that no air enters in the refrigerant circuit when the unit is not deforming the power plug due to tread it.installed and removed.This may cause fire or heating.If air enters in the refrigerant circuit, the pressure in the refrigerant circuit • Do not vent R410A into the atmosphere : R410A is a fluorinatedbecomes too high, which can cause burst and personal injury.greenhouse gas, covered by the Kyoto Protocol with GrovalWarming Potential (GWP)=1975.• Do not run the unit with removed panels or protections.Touching rotating equipments, hot surfaces or high voltage parts can causepersonal injury due to entrapment, burn or electric shocks.• Use the circuit breaker of correct capacity. Circuit breaker shouldbe the one that disconnect all poles under over current.Using the incorrect one could cause the system failure and fire.• Earth leakage breaker must be installed.If the earth leakage breaker is not installed, it can cause electric shocks.• Install isolator or disconnect switch on the power supply wiring inaccordance with the local codes and regulations.• Be sure to install indoor unit properly according to the installationmanual in order to run off the drainage smoothly.Improper installation of indoor unit can cause dropping water into the roomand damaging personal property.• Install the drainage pipe to run off drainage securely according tothe installation manual.Incorrect installation of the drainage pipe can cause dropping water into theroom and damaging personal property.• Be sure to install the drainage pipe with descending slope of 1/100or more, and not to make traps and air-bleedings.Check if the drainage runs off securely during commissioning and ensurethe space for inspection and maintenance.• Secure a space for installation, inspection and maintenancespecified in the manual.Insufficient space can result in accident such as personal injury due tofalling from the installation place.WARNING• Do not perform any change of protective device itself or its setupcondition.The forced operation by short-circuiting protective device of pressureswitch and temperature controller or the use of non specified componentcan cause fire or burst.CAUTION• Carry out the electrical work for ground lead with care.Do not connect the ground lead to the gas line, water line, lightning conductor or telephone line’s ground lead. Incorrect grounding can cause unit faultssuch as electric shocks due to short-circuiting.• For installation work, be careful not to get injured with the heatexchanger, piping flare portion or screws etc.• Be sure to insulate the refrigerant pipes so as not to condense theambient air moisture on them.Insufficient insulation can cause condensation, which can lead to moisturedamage on the ceiling, floor, furniture and any other valuables.• When perform the air conditioner operation (cooling or dryingoperation) in which ventilator is installed in the room. In this case,using the air conditioner in parallel with the ventilator, there is thepossibility that drain water may backflow in accordance with theroom lapse into the negative pressure status. Therefore, set up theopening port such as incorporate the air into the room that mayappropriate to ventilation (For example; Open the door a little). Inaddition, just as above, so set up the opening port if the room lapseinto negative pressure status due to register of the wind for the highrise apartment etc.• Be sure to perform air tightness test by pressurizing with nitrogengas after completed refrigerant piping work.If the density of refrigerant exceeds the limit in the event of refrigerantleakage in the small room, lack of oxygen can occur, which can causeserious accidents.• Do not install the unit in the locations listed below.If leaked gases accumulate around the unit, it can cause fire.• Locations where carbon fiber, metal powder or any powder is floating. • Do not install the unit where corrosive gas (such as sulfurous acid• Locations where any substances that can affect the unit such as sulphide gas etc.) or combustible gas (such as thinner and petroleum gases)gas, chloride gas, acid and alkaline can occur.can accumulate or collect, or where volatile combustible• Vehicles and ships.substances are handled.• Locations where cosmetic or special sprays are often used.Corrosive gas can cause corrosion of heat exchanger, breakage of plastic• Locations with direct exposure of oil mist and steam such as kitchen and parts and etc. And combustible gas can cause fire.machine plant.• Do not use the indoor unit at the place where water splashes may• Locations where any machines which generate high frequency harmonics occur such as in laundries.are used.Since the indoor unit is not waterproof, it can cause electric shocks and fire.• Locations with salty atmospheres such as coastlines.• Do not install nor use the system close to the equipment that• Locations with heavy snow (If installed, be sure to provide base flame and generates electromagnetic fields or high frequency harmonics.snow hood mentioned in the manual).Equipment such as inverters, standby generators, medical high frequency• Locations where the unit is exposed to chimney smoke.equipments and telecommunication equipments can affect the system, and• Locations at high altitude (more than 1000m high).cause malfunctions and breakdowns. The system can also affect medical• Locations with ammonic atmospheres.equipment and telecommunication equipment, and obstruct its function or• Locations where heat radiation from other heat source can affect the unit. cause jamming.• Locations without good air circulation.• Do not place any variables which will be damaged by getting wet• Locations with any obstacles which can prevent inlet and outlet air of the unit. under the indoor unit.• Locations where short circuit of air can occur (in case of multiple units When the relative humidity is higher than 80% or drainage pipe is clogged,installation).condensation or drainage water can drop and it can cause the damage of• Locations where strong air blows against the air outlet of outdoor unit. valuables.It can cause remarkable decrease in performance, corrosion and damage • Do not install the remote control at the direct sunlight.of components, malfunction and fire.It can cause malfunction or deformation of the remote control.• Do not install the indoor unit in the locations listed below (Be sure • Do not use the unit for special purposes such as storing foods,to install the indoor unit according to the installation manual for cooling precision instruments and preservation of animals, plants oreach model because each indoor unit has each limitation).art.• Locations with any obstacles which can prevent inlet and outlet air of the It can cause the damage of the items.unit.• Do not use any materials other than a fuse with the correct rating in• Locations where vibration can be amplified due to insufficient strength of the location where fuses are to be used.structure.Connecting the circuit with copper wire or other metal thread can cause• Locations where the infrared receiver is exposed to the direct sunlight or unit failure and fire.the strong light beam (in case of the infrared specification unit).• Do not touch any buttons with wet hands.• Locations where an equipment affected by high harmonics is placed (TV It can cause electric shocks.set or radio receiver is placed within 1m).• Do not touch any refrigerant pipes with your hands when the• Locations where drainage cannot run off safely.system is in operation.It can affect performance or function and etc.During operation the refrigerant pipes become extremely hot or extremely• Do not install the unit near the location where leakage ofcold depending the operating condition, and it can cause burn injury orcombustible gases can occur.frost injury.

BEFORE INSTALLATION Before installation check that the power supply matches the air conditioner.Standard accessories (Installation kit)Accessories for indoor unitInstallation board1(Attached to the rear of the indoor unit)2 Wireless remote control- 29 - '11 • SRK-T-10512345678910111213Sealing plateSleeveInclination platePuttyOption partsDrain hose (extension hose)Piping cover(for insulation of connection piping)Necessary tools for the installation workPlus headed driverKnifeSawTape measureHammerSpanner wrench14.0 ~ 82.0N·mTorque wrench ( (1.4 ~ 8.2kgf·m) )Hole core drill (65mm in diameter)Wrench key (Hexagon) [4m/m]Flaring tool setGas leak detectorGauge for projection adjustmentUsed when flare is made by usingconventional flare toolPipe benderDesigned specifically( for R410A )Designed specifically( for R410A )( )Q’ty3456Remote control holderTapping screws(for installation board ø4 X 25mm)Wood screws(for remote control switch holder ø3.5 X 16mm)Battery [R03 (AAA, Micro) 1.5V]110227 Air-cleaning filtersFilter holders8(Attached to the front panel of indoor unit)9 Insulation (#486 50 x 100 t3)11221Q’ty111111SELECTION OF INSTALLATION LOCATION(Install at location that meets the following conditions, after getting approval from the customer)Indoor unit Where there is no obstructions to the air flow and where the cooled and heated air can be evenly distributed. A solid place where the unit or the wall will not vibrate. A place where there will be enough space for servicing. (Where space mentioned below can be secured) Where wiring and the piping work will be easy to conduct. The place where receiving part is not exposed to the direct rays of the sun or the strong rays of the street lighting. A place where it can be easily drained. A place separated at least 1m away from the television or the radio. (To prevent interference to images and sounds.) Places where this unit is not affected by the high frequency equipment or electric equipment. Avoid installing this unit in place where there is much oil mist. Places where there is no electric equipment or household under the installing unit.Wireless remote control A place where the air conditioner can be received the signal surely during operating the wireless remote control. Places where there is no affected by the TV and radio etc. Do not place where exposed to direct sunlight or near heat devices such as a stove.INSTALLATION OF INDOOR UNITInstallation of Installation boardLook for the inside wall structures (Intermediats support or pillarand firmly install the unit after level surface has been checked.)610450Mating mark forlevel surface Adjustment of the installation board in the horizontal direction is tobe conducted with eight screws in a temporary tightened state. Adjust so the board will belevel by turning the boardStandardwith the standard hole asholethe center.Drilling of holes and fixture of sleeve (Option parts)When drilling the wall that contains a metal lath, wire lath or metal plate, be sure to use pipe hole sleeve sold separately.Sufficient care must be taken not to damagethe panel when connecting pipes.Piping in the left directionFixing on concrete wallUse of nut anchorUse of bolt anchorPiping in the right directionPiping is possible in the rear, left, left rear, left downward, right or downward direction.RightRearDownward LeftrearLeftLeft downwardWireless remote controlRemote control holderWood screwsRelation between setting plate and indoor unitINSTALLATION SPACE (INDOOR UNIT) (FRONT VIEW)Indoor unitInstallation boardSpaceSpace50 for service for service 100886106106 349 450 29950 50b Topb c553.577Turn toPiping for Gas 633.5ø65a tightenPiping hole (ø65)Piping for Liquid 703.5For bolt anchorIndoor side Outdoor side Thickness of the wall + 1.5cmIndoor side Outdoor side Installed stateand nut anchorDrain hose 772 (ø16) Drill a hole with whole core drill. In case of rear piping draw out, cut off the lowerPiping hole (ø65)and the right side portions of the sleeve collar.Installing the support of piping• Matters of special notice when piping from left or central/rear of the unit.[Top view][Drain hose changing procedures]In case of piping in the right rear directionLeft-hand-side pipingRight-hand-side piping1. Remove the drain hose 2. Remove the drain cap.Shaping of pipings Taping of the exteriorPiping in the left rear direction Piping in the right rear directionPipingsDrain hose Hold the bottom of thepiping and fix directionbefore stretching it andshaping it. Tape only the portionthat goes through thewall. Always tape the wiringwith the piping.Bolt(M6 12)MountingboardNut(M6)MountingboardMax.105 cm minimumfrom the wallCAUTIONCompletely seal the hole onthe wall with putty. Otherwise,furniture, or other, may bewetted by leaked water ordewing.Indoor sideputty49.5221.544.5Outdoor sideputty256.5 cm minimum from the ceilingInstallation boardSleeve (sold separately)10 cm minimumfrom the wall65 Spacefor service44.57.7 301.8 8.515 Spacefor service Remove the screw and drain hose, Remove it with hand or pliers.making it rotate.3. Insert the drain cap. 4. Connect the drain hose.(Unit : mm) Insert the drain cap which was removed Insert the drain hose securely, makingat procedure “2” securely using arotate. And install the screw.hexagonal wrench etc.Note: Be careful that If it is not InsertedNote: Be careful that If it is not Insertedsecurely, water leakage maysecurely, water leakage may occur. occur.

Fixing of indoor unitLatch (2 locations)Indoor unit1Installation StepsPass the pipe throughthe hole in the wall,and hook the upperpart of the indoor unitto the installation board.• How to remove the indoor unit from the installation board1 Push up at the marked portion of the indoor unit base lower latch, and slightlypull it toward you. (both right and left hand sides) (The indoor unit base lowerlatch can be removed from the installation board)2 Push up the indoor unit upward. So the indoor unit will be removed from theinstallation board.Since this air conditioner has been designed to collect dew drops on the rearsurface to the drain pan, do not attach the power cord above the gutter.DrainageGutterPipe accommodating sectionWall2Gently push the lowerpart to secure the unit. Arrange the drain hose in a downward angle. Avoid the following drain piping.CAUTIONGo through all installation steps and check if thedrainage is all right. Otherwise water leak may occur.Odor fromthe gutterInstallation boardWallInstallation boardThe marked portion of the indoor unit base lower latch.Higher than specifiedThe drain hosetip is in water.The drain hosetip is in the gutter. Pour water to the drain pan located under the heat exchanger, and ensure that the water is discharged outdoor. When the extended drain hose is indoor, always use a shield pipe (to be arranged by the user) and ensure it isthermally insulated.Shield pipeWavyThe gap to the ground is5 cm or less.Indoor unit base latchDrain hoseWhen it is exposed indoor.Extended drain hoseCONNECTION OF REFRIGERANT PIPINGSPreparationIndoor- 30 - '11 • SRK-T-105 Remove the flared nuts. (on both liquid and gas sides)• Flaring workFlaringblock(Do not turn)Keep the openings of the pipes covered with tapes etc. to prevent dust, sand, etc. from entering them.Measurement BCopper pipePressRemoveDimension ALiquid side ø6.35 : 9.1 (mm)AGas side ø9.52 : 13.2 (mm)ø12.7 : 16.6 (mm)ø15.88 : 19.7 (mm) Install the removed flared nuts to the pipes to be connected,then flared the pipes.90 ± 0.5˚Measurement B (mm)Copper pipe diameter Clutch type flare tool for Conventional (R22) flare toolR410AClutch typeWing nut typeø6.35ø9.52ø12.70.0 - 0.50.0 - 0.50.0 - 0.51.0 - 1.51.0 - 1.51.0 - 1.51.5 - 2.01.5 - 2.02.0 - 2.5ø15.880.0 - 0.51.0 - 1.52.0 - 2.5Use a flare tool designed for R410A or a conventional flare tool.Please note that measurement B (protrusion from the flaring block) will vary depending on thetype of a flare tool in use.If a conventional flare tool is used, please use a copper pipe gauge or a similar instrument tocheck protrusion so that you can keep measurement B to a correct value.CAUTIONDo not apply refrigerating machineoil to the flared surface.ConnectionIndoorLiquid sideGas side(Do not turn) Connect the pipes on both liquid and gas sides. Tighten the nuts to the following torque.Liquid side (ø6.35) : 14.0 - 18.0 N·m (1.4 - 1.8 kgf·m)Gas side (ø9.52) : 34.0 - 42.0 N·m (3.4 - 4.2 kgf·m)(ø12.7) : 49.0 - 61.0 N·m (4.9 - 6.1 kgf·m)(ø15.88) : 68.0 - 82.0 N·m (6.8 - 8.2 kgf·m)CAUTIONDo not apply excess torque to the flared nuts.Otherwise, the flared nuts may check depending.Insulation of the connection portionCover the coupling with insulator and then cover it with tapes.Vinyl tapeUse an attached insulation pad for heat insulation.Position it so that the slit area faces upward.• Cover the indoor unit s flare-connected joints, after they are checked for a gas leak,with an indoor unit heat insulating material and then wrap them with a tape with anattached insulation pad placed over the heat insulating material’s slit area.Finishing work and fixingRefrigerant pipingConnection wiring,Earth wiringOuter tapeDrain hoseWood screwClampCover the exterior portion with outer tape andshape the piping so it will match the contoursof the route that the piping to take.Also fix the wiring and pipings to the wall withclamps.Open/close and detachment/attachment of the air inlet panelHow to remove and install the front panelLatch To open, pull the panel at both ends of lower partand release latches, then pull up the panel untilyou feel resistance.(The panel stops at approx. 60° open position) To close, hold the panel at both ends of lowerpart to lower downward and push it slightly untilthe latch works. To remove, pull up the panel to the positionshown in right illustration and pull it toward you. To install, insert the panel arm into the slot on thefront panel from the position shown in rightillustration, hold the panel at both ends of lowerpart, lower it downward slowly, then push itslightly until the latch works.To remove / To installApprox. 80°RemovingRemove the air inlet panel.Remove the screw (A) 2pcs / screw(B) 3pcs fixing to the front panel.Remove the 3 latches in the uppersection of the front panel and thenremove the front panel from the unit.InstallingRemove the air filter.Cover the unit with the front panel.Tighten the screw (A) 2pcs / screw(B) 3pcs to fix the front panel.Install the air filter.Install the air inlet panel.Screw (B)Screw (A)Air inlet panelScrew (B)Screw (A)Air filterScrew (B)Front panel

ELECTRICAL WIRING WORKPreparation of indoor unitMounting of connecting wires1234567Open the air inlet panel.Remove the lid.Remove the wiring clamp.Connect the connecting wire securely to the terminal block.1) Connect the connection wire securely to the terminalblock. If the wire is not affixed completely, contact will bepoor, and it is dangerous as the terminal block may heatup and catch fire.2) Take care not to confuse the terminal numbers for indoorand outdoor connections.Fix the connecting wire by wiring clamp.Attach the lid.Close the air inlet panel.CAUTIONIn case of faulty wiring connection, the indoor unit stops, andthen the run lamp turns on and the timer lamp blinks.Use cables for interconnection wiring to avoid loosening of thewires.CENELEC code for cables Required field cables.H05RNR4G1.5 (example) or 245IEC57H Harmonized cable type05 300/500 voltsR Natural-and/or synth, rubber wire insulationN Polychloroprene rubber conductors insulationR Stranded core4or5 Number of conductorsG One conductor of the cable is the earth conductor(yellow/green)1.5 Section of copper wire (mm 2 )Terminal block1 2 N 3Wiring ClampLidInstalling the air-cleaning filters1. Open the air inlet panel and remove the air filters.2. Install the filter holders, with the air-cleaning filters installed in the holders.In the air conditioner.• Each air-cleaning filter can be installed in the left or right filter holder.3. Install the air filters and close the inlet panel.Air-cleaningfilterFilter holderINSTALLATION OF WIRELESS CONTROLMounting method of battery Uncover the wireless remote control, and mount the batteries[R03 (AAA, Micro), 2 pieces] in the body regularly.(Fit the poles with the indication marks, & without fail)CAUTIONDo not use new andold batteries together.6 BatteryCoverFixing to pillar or wall Conventionally, operate the wireless remote control by holdingin your hand. Avoid installing it on a clay wall etc.2 Wireless remote control5 Wood screwsø3.5 X 16INSTALLATION TEST CHECK POINTSCheck the following points again after completion of the installation, and before turning on the power. Conduct a test run again and ensure that the unit operates properly.At the same time, explain to the customer how to use the unit and how to take care of the unit following the user’s manual.After installationThe power supply voltage is correct as the rating.No gas leaks from the joints of the operation valve.Power cables and crossover wires are securely fixed to the terminal board.Operation valve is fully open.The pipe joints for indoor and outdoor pipes have been insulated.Test runAir conditioning operation is normal.Operation of the unit has been explained to the customer.No abnormal noise.(Three-minutes restart preventive timer)Water drains smoothly.When the air conditioner is restarted or when changing the operation, the unitProtective functions are not working.will not start operating for approximately 3 minutes.The remote control is normal.This is to protect the unit and it is not a malfunction.HOW TO RELOCATE OR DISPOSE OF THE UNIT In order to protect the environment, be sure to pump down (recovery of refrigerant). Pump down is the method of recovering refrigerant from the indoor unit to theoutdoor unit when the pipes are removed from the unit.1 Connect charge hose to check joint of outdoor unit.2 Liquid side : Close the liquid valve with hexagon wrench key.Gas side : Fully open the gas valve.Carry out cooling operation. (If indoor temperature is low, operateforced cooling operation.)3 After low pressure gauge become 0.01MPa, stop cooling operationand close the gas valve.• Forced cooling operationTurn on a power supply again after a while after turn off a power supply.Then press continually the ON/OFF button 5 seconds or more.Unit ON/OFF button- 31 - '11 • SRK-T-105CONCERNING TERMINAL CONNECTION FOR AN INTERFACE1 Remove the air inlet panel, lid and front panel.2 Remove the control cover. (Remove the screw.)3 There is a terminal (respectively marked with CNS) for the indoor control board.In connecting an interface, connect to the respective terminal securely with the connection harnesssupplied with an optional “Interface connection kit SC-BIKN-E” and fasten the connection harnessonto the indoor control box with the clamp supplied with the kit.For more details, please refer to the user’s manual of your “Interface connection kit SC-BIKN-E”.Indoor unit PCBScrewControl coverCNS terminal

(2) Installation of outdoor unitModels SRC63ZK-S, 71ZK-S, 80ZK-SRCR012A001• Read the “SAFETY PRECAUTIONS” carefully first of all and strictly follow it during the installation work in orderto protect yourself.• The precautionary items mentioned below are distinguished into two levels, WARNING and CAUTION .WARNING : Wrong installation would cause serious consequences such as injuries or death.CAUTION : Wrong installation might cause serious consequences depending on circumstances.Both mentions the important items to protect your health and safety so strictly follow them by any means.• Be sure to confirm no anomaly on the equipment by commissioning after completed installation and explain theoperating methods as well as the maintenance methods of this equipment to the user according to the owner’smanual.R410A REFRIGERANT USED• This installation manual deals with outdoor units and general installation specifications only. For indoor units, refer to page 19.• When install the unit, be sure to check whether the selection of installation place, power supply specifications, usage limitation (piping length, height differences between indoor and outdoor units, powersupply voltage and etc.) and installation spaces.SAFETY PRECAUTIONS• Keep the installation manual together with owner’s manual at a place where any user can read at any time.Moreover if necessary, ask to hand them to a new user.• For installing qualified personnel, take precautions in respect to themselves by using suitable protectiveclothing, groves, etc., and then perform the installation works.• Please pay attention not to fall down the tools, etc. when installing the unit at the high position.• If unusual noise can be heard during operation, consult the dealer.• The meanings of “Marks” used here are as shown on the right:Never do it under any circumstances.Always do it according to the instruction.• Installation must be carried out by the qualified installer.If you install the system by yourself, it may cause serious trouble such as waterleaks, electric shocks, fire and personal injury, as a result of a system malfunction.• Install the system in full accordance with the installation manual.Incorrect installation may cause bursts, personal injury, water leaks, electricshocks and fire.• Be sure to use only for household and residence.If this appliance is installed in inferior environment such as machine shop and etc.,it can cause malfunction.• When installing in small rooms, take prevention measures not toexceed the density limit of refrigerant in the event of leakage, referredby the formula (accordance with ISO5149).If the density of refrigerant exceeds the limit, please consult the dealer and installthe ventilation system, otherwise lack of oxygen can occur, which can cause seriousaccident.• Use the original accessories and the specified components forinstallation.If parts other than those prescribed by us are used, It may cause water leaks,electric shocks, fire and personal injury.• Install the unit in a location with good support.Unsuitable installation locations can cause the unit to fall and cause materialdamage and personal injury.• Ensure the unit is stable when installed, so that it can withstandearthquakes and strong winds.Unsuitable installation locations can cause the unit to fall and cause materialdamage and personal injury.WARNING• Ventilate the working area well in the event of refrigerant leakage duringinstallation.If the refrigerant comes into contact with naked flames, poisonous gas is produced.• Use the prescribed pipes, flare nuts and tools for R410A.Using existing parts (for R22 or R407C) can cause the unit failure and seriousaccidents due to burst of the refrigerant circuit.• Tighten the flare nut by torque wrench with specified method.If the flare nut were tightened with excess torque, this may cause burst andrefrigerant leakage after a long period.• Do not open the operation valves for liquid line and gas line untilcompleted refrigerant piping work, air tightness test and evacuation.If the compressor is operated in state of opening operation valves beforecompleted connection of refrigerant piping work, air can be sucked into refrigerantcircuit, which can cause bust or personal injury due to anomalously high pressurein the refrigerant.• The electrical installation must be carried out by the qualified electricianin accordance with “the norm for electrical work” and “national wiringregulation”, and the system must be connected to the dedicated circuit.Power supply with insufficient capacity and incorrect function done by improperwork can cause electric shocks and fire.• Be sure to shut off the power before starting electrical work.Failure to shut off the power can cause electric shocks, unit failure or incorrectfunction of equipment.• Be sure to use the cables conformed to safety standard and cableampacity for power distribution work.Unconformable cables can cause electric leak, anomalous heat production or fire.• This appliance must be connected to main power supply by means of acircuit breaker or switch (fuse:20A) with a contact separation of at least3mm.• Arrange the wiring in the control box so that it cannot be pushed upfurther into the box. Install the service panel correctly.Incorrect installation may result in overheating and fire.• Use the prescribed cables for electrical connection, tighten the cablessecurely in terminal block and relieve the cables correctly to preventoverloading the terminal blocks.Loose connections or cable mountings can cause anomalous heat production orfire.• Be sure to fix up the service panels.Incorrect fixing can cause electric shocks or fire due to intrusion of dust or water.• Be sure to switch off the power supply in the event of installation,inspection or servicing.If the power supply is not shut off, there is a risk of electric shocks, unit failure orpersonal injury due to the unexpected start of fan.• Stop the compressor before removing the pipe after shutting theservice valve on pump down work.If the pipe is removed when the compressor is in operation with the service valveopen, air would be mixed in the refrigeration circuit and it could cause explosionand injuries due to abnormal high pressure in the cooling cycle.• Only use prescribed optional parts. The installation must be carried outby the qualified installer.If you install the system by yourself, it can cause serious trouble such as waterleaks, electric shocks, fire.- 32 - '11 • SRK-T-105• Ensure that no air enters in the refrigerant circuit when the unit is • Do not bundling, winding or processing for the power cord. Or, do notinstalled and removed.deforming the power plug due to tread it.If air enters in the refrigerant circuit, the pressure in the refrigerant circuitThis may cause fire or heating.becomes too high, which can cause burst and personal injury.• Do not run the unit with removed panels or protections.• Do not processing, splice the power cord, or share a socket with other power plugs. Touching rotating equipments, hot surfaces or high voltage parts can causeThis may cause fire or electric shock due to defecting contact, defecting insulation personal injury due to entrapment, burn or electric shocks.and over-current etc.• Do not perform any change of protective device itself or its setupcondition.The forced operation by short-circuiting protective device of pressure switch andtemperature controller or the use of non specified component can cause fire orburst.

CAUTION• Carry out the electrical work for ground lead with care.Do not connect the ground lead to the gas line, water line, lightning conductor or telephone line’s ground lead. Incorrect grounding can cause unit faults such as electric shocks due to short-circuiting.• Use the circuit breaker for all pole correct capacity. Circuit breakershould be the one that disconnect all poles under over current.Using the incorrect circuit breaker, it can cause the unit malfunction and fire.• Earth leakage breaker must be installed.If the earth leakage breaker is not installed, it can cause electric shocks.• Install isolator or disconnect switch on the power supply wiring inaccordance with the local codes and regulations.The isolator should be locked in OFF state in accordance with EN60204-1.• After maintenance, all wiring, wiring ties and the like, should be returnedto their original state and wiring route, and the necessary clearance fromall metal parts should be secured.• Do not install the unit in the locations listed below.• Locations where carbon fiber, metal powder or any powder is floating.• Locations where any substances that can affect the unit such as sulphide gas,chloride gas, acid and alkaline can occur.• Vehicles and ships.• Locations where cosmetic or special sprays are often used.• Locations with direct exposure of oil mist and steam such as kitchen andmachine plant.• Locations where any machines which generate high frequency harmonics areused.• Locations with salty atmospheres such as coastlines.• Locations with heavy snow (If installed, be sure to provide base flame and snowhood mentioned in the manual).• Locations where the unit is exposed to chimney smoke.• Locations at high altitude (more than 1000m high).• Locations with ammonic atmospheres.• Locations where heat radiation from other heat source can affect the unit.• Locations without good air circulation.• Locations with any obstacles which can prevent inlet and outlet air of the unit.• Locations where short circuit of air can occur (in case of multiple unitsinstallation).• Locations where strong air blows against the air outlet of outdoor unit.It can cause remarkable decrease in performance, corrosion and damage ofcomponents, malfunction and fire.• Secure a space for installation, inspection and maintenance specified inthe manual.Insufficient space can result in accident such as personal injury due to falling fromthe installation place.• Take care when carrying the unit by hand.If the unit weights more than 20kg, it must be carried by two or more persons. Donot carry by the plastic straps, always use the carry handle when carrying the unitby hand. Use gloves to minimize the risk of cuts by the aluminum fins.• Dispose of any packing materials correctly.Any remaining packing materials can cause personal injury as it contains nails andwood. And to avoid danger of suffocation, be sure to keep the plastic wrapperaway from children and to dispose after tear it up.• Do not install the outdoor unit in the locations listed below.• Locations where discharged hot air or operating sound of the outdoor unit canbother neighborhood.• Locations where outlet air of the outdoor unit blows directly to an animal orplants. The outlet air can affect adversely to the plant etc.• Locations where vibration can be amplified and transmitted due to insufficientstrength of structure.• Locations where vibration and operation sound generated by the outdoor unitcan affect seriously (on the wall or at the place near bed room).• Locations where an equipment affected by high harmonics is placed (TV set orradio receiver is placed within 1m).• Locations where drainage cannot run off safely.It can affect surrounding environment and cause a claim.• Do not install the unit near the location where leakage of combustiblegases can occur.If leaked gases accumulate around the unit, it can cause fire.• Do not install the unit where corrosive gas (such as sulfurous acid gasetc.) or combustible gas (such as thinner and petroleum gases) canaccumulate or collect, or where volatile combustible substances arehandled.Corrosive gas can cause corrosion of heat exchanger, breakage of plastic partsand etc. And combustible gas can cause fire.• Do not install nor use the system close to the equipment thatgenerates electromagnetic fields or high frequency harmonics.Equipment such as inverters, standby generators, medical high frequencyequipments and telecommunication equipments can affect the system, and causemalfunctions and breakdowns. The system can also affect medical equipment and• Be sure to insulate the refrigerant pipes so as not to condense theambient air moisture on them.Insufficient insulation can cause condensation, which can lead to moisturedamage on the ceiling, floor, furniture and any other valuables.• When perform the air conditioner operation (cooling or drying operation)in which ventilator is installed in the room. In this case, using the airconditioner in parallel with the ventilator, there is the possibility thatdrain water may backflow in accordance with the room lapse into thenegative pressure status. Therefore, set up the opening port such asincorporate the air into the room that may appropriate to ventilation (Forexample; Open the door a little). In addition, just as above, so set up theopening port if the room lapse into negative pressure status due toregister of the wind for the high rise apartment etc.telecommunication equipment, and obstruct its function or cause jamming.• Do not install the outdoor unit in a location where insects and smallanimals can inhabit.Insects and small animals can enter the electric parts and cause damage or fire.Instruct the user to keep the surroundings clean.• Do not use the base flame for outdoor unit which is corroded or damageddue to long periods of operation.Using an old and damage base flame can cause the unit falling down and causepersonal injury.• Do not use any materials other than a fuse with the correct rating inthe location where fuses are to be used.Connecting the circuit with copper wire or other metal thread can cause unitfailure and fire.• Do not touch any buttons with wet hands.It can cause electric shocks.• Do not touch any refrigerant pipes with your hands when the system isin operation.During operation the refrigerant pipes become extremely hot or extremely colddepending the operating condition, and it can cause burn injury or frost injury.• Do not touch the suction or aluminum fin on the outdoor unit.This may cause injury.• Do not put anything on the outdoor unit and operating unit.This may cause damage the objects or injury due to falling to the object.• Do not use the unit for special purposes such as storing foods, coolingprecision instruments and preservation of animals, plants or art.• Do not clean up the unit with water.Check before installation work• Model name and power source• Refrigerant piping length• Piping, wiring and miscellaneous small parts• Indoor unit installation manualAccessories for outdoor unit1 Grommet (Heat pump type only)2 Drain elbow (Heat pump type only)Q’ty21abcdefOption partsSealing plateSleeveInclination platePuttyDrain hose (extension hose)Piping cover(for insulation of connection piping)Q’ty11111112345678Necessary tools for the installation workPlus headed driverKnifeSawTape measureHammerSpanner wrenchTorque wrench [14.0~82.0N·m (1.4~8.2kgf·m)]Hole core drill (65mm in diameter)- 33 - '11 • SRK-T-1059 Wrench key (Hexagon) [4m/m]10 Vacuum pumpVacuum pump adapter (Anti-reverse flow type)11(Designed specifically for R410A)12 Gauge manifold (Designed specifically for R410A)13 Charge hose (Designed specifically for R410A)14 Flaring tool set (Designed specifically for R410A)15 Gas leak detector (Designed specifically for R410A)Gauge for projection adjustment16(Used when flare is made by using conventional flare tool)Notabilia as a unit designed for R410A• Do not use any refrigerant other than R410A. R410A will rise to pressure about 1.6 times higher than that of a conventional refrigerant.A cylinder containing R410A has a pink indication mark on the top.• A unit designed for R410A has adopted a different size indoor unit operation valve charge port and a different size check joint provided in the unit to prevent the charging of a wrong refrigerant by mistake.The processed dimension of the flared part of a refrigerant pipe and a flare nut’s parallel side measurement have also been altered to raise strength against pressure.Accordingly, you are required to arrange dedicated R410A tools listed in the table on the right before installing or servicing this unit.• Do not use a charge cylinder. The use of a charge cylinder will cause the refrigerant composition to change, which results in performance degradation.• In charging refrigerant, always take it out from a cylinder in the liquid phase.• All indoor units must be models designed exclusively for R410A. Check connectable indoor unit models in a catalog, etc. (A wrong indoor unit, if connected into the system, will impair proper system operation)

1. HAULAGE AND INSTALLATION (Take particular care in carrying in or moving the unit, and always perform such an operation with two or more persons.)CAUTIONWhen a unit is hoisted with slings for haulage, take into consideration the offset of its gravity center position.If not properly balanced, the unit can be thrown off-balance and fall.1) Delivery• Deliver the unit as close as possible to the installation site before removing it fromthe packaging.• When you have to unpack the unit for a compelling reason before you haul it tothe installation point, hoist the unit with nylon slings or ropes and protection padsso that you may not damage the unit.Pad(2) If the unit can be affected by strong wind, following measures are required.Strong wind can cause damage of fan (fan motor), or can cause performance degradation, or can triggeranomalous stop of the unit due to rising of high pressure.1 Place the unit outlet side is turned to the wall. 2 Install so the direction of the air from theblowing outlet will be perpendicular to thedirection of the wind.2) Portage• The right hand side of the unit as viewed from the front (diffuser side) is heavier.A person carrying the right hand side must take heed of this fact. A personcarrying the left hand side must hold with his right hand the handle provided onthe front panel of the unit and with his left hand the corner column section.3) Selecting the installation locationBe careful of the following conditions and choose an installation place.• Where air is not trapped.• Where the installation fittings can be firmly installed.• Where wind does not hinder the intake and outlet pipes.• Out of the heat range of other heat sources.• A place where stringent regulation of electric noises is applicable.• Where it is safe for the drain water to be discharged.• Where noise and hot air will not bother neighboring residents.• Where snow will not accumulate.• Where strong winds will not blow against the outlet pipe.• A place where no TV set or radio receiver is placed within 1m.(If electrical interference is caused, seek a place less likely to cause the problem)• If a operation is conducted when the outdoor air temperature is –5 C lower, the outdoor unit should beinstalled at a place where it is not influenced by natural wind.• Where it is likely that the unit is subjected to strong winds, provide wind guards according to thefollowing guidelines. Strong winds can cause performance degradation, an accidental stop due to a rise ofhigh pressure and a broken fan.- 34 - '11 • SRK-T-1054) Caution about selection of installation location(1) If the unit is installed in the area where the snow will accumulate, following measures are required.The bottom plate of unit and intake, outlet may be blocked by snow.Heavy5) Installation space6) InstallationOver 500mm• Walls surrounding the unit in the four sides are notacceptable.• There must be a 1-meter or larger space in the above.• When more than one unit are installed side by side,provide a 250mm or wider interval between them as aservice space. In order to facilitate servicing ofcontrollers, please provide a sufficient space betweenunits so that their top plates can be removed easily.• Where a danger of short-circuiting exists, install guidelouvers.• When more than one unit are installed, provide sufficientintake space consciously so that short-circuiting may notoccur.• Where piling snow can bury the outdoor unit, provideproper snow guards.1 Anchor bolt fixed position6015Intake34019380418WinddirectionExample installationSizeThe height of a wall is 1200mm or less.L2L1L2L3L4IntakeIntakeOutlet(mm)I II IIIOpen300100250L3WinddirectionOpen250150250( servicespace )L1L4500Open1002501 Install the unit on the base so that the bottom ishigher than snow cover surface.2 Install the unit under eaves or provide the roofon site.Outlet150 580150880 87.9192 Notabilia for installationFasten with bolts(M10-12)Since drain water generated by defrost control may freeze, following measures are required.• Do not execute drain piping work by using a drain elbow and drain grommets (optional parts).[Refer to Drain piping work.]Use a long block to extend the width.Use a thicker block to anchor deeper.• In installing the unit, fix the unit’s legs with bolts specified on the left.• The protrusion of an anchor bolt on the front side must be kept within 15mm.• Securely install the unit so that it does not fall over during earthquakes or strong winds, etc.• Refer to the above illustrations for information regarding concrete foundations.• Install the unit in a level area. (With a gradient of 5mm or less.) Improper installation can result in acompressor failure, broken piping within the unit and abnormal noise generation.

2. REFRIGERANT PIPING WORK1) Restrictions on unit installation and use• Check the following points in light of the indoor unit specifications and the installation site.• Observe the following restrictions on unit installation and use. Improper installation can result in a compressor failure or performance degradation.Elevation difference betweenindoor and outdoor unitsRestrictionsMain pipe lengthCAUTION2) Determination of pipe sizeWhen the outdoor unit is positioned higher,When the outdoor unit is positioned lower,The use restrictions appearing in the table above are applicable to the standard pipe size combinations shown in the table below.Determine refrigerant pipe size pursuant to the following guidelines basedon the indoor unit specifications.Outdoor unit connectedRefrigerant piping (branch pipe L)Gas pipeø15.88Flareø15.88Liquid pipeø6.35Flareø6.35Dimensional restrictions30m or less20m or less20m or lessAbout brazingMarks appearing in thedrawing on the rightWhen pipe is brazing.LHHBrazing must be performed under a nitrogen gas flow.Without nitrogen gas, a large quantity of foreign matters(oxidized film) are created, causing a critical failure fromcapillary tube or expansion valve clogging.NitrogenHOutdoor unitPlug the end of the pipe with tape, or othermaterial, and fill the pipe with nitrogen gas.TapingOnly use nitrogen gas (N2)BrazingPrimary sideStation valveNitrogengasRelief valveIndoor unitSecondary side0.5MPaHandLIndoor unit connectedø15.88ø6.353) Refrigerant pipe wall thickness and material• Select refrigerant pipes of the table shown on the right wall thickness andmaterial as specified for each pipe size.NOTESelect pipes having a wall thickness larger than the specifiedminimum pipe thickness.4) On-site piping workPipe diameter [mm]Minimum pipe wall thickness [mm]Pipe material*ø6.35*Phosphorus deoxidized seamless copper pipe ICS 23.040.15, ICS 77.150.300.8O-type pipeø15.881.0O-type pipeIMPORTANTTake care so that installed pipes may not touch components within a unit.If touching with an internal component, it will generate abnormal sounds and/or vibrations.APlease remove the screw of a side cover andHow to remove the side coverremove to the front.• Carry out the on site piping work with the operation valve fully closed.• Give sufficient protection to a pipe end (compressed and blazed, or with anadhesive tape) so that water or foreign matters may not enter the piping.• Bend a pipe to a radius as large as practical (R100~R150). Do not bend a piperepeatedly to correct its form.• Flare connection is used between the unit and refrigerant pipe. Flare a pipe afterengaging a flare nut onto it. Flare dimensions for R410A are different fromthose for conventional R407C. Although we recommend the use of flaring toolsdesigned specifically for R410A, conventional flaring tools can also be used byadjusting the measurement of protrusion B with a protrusion control gauge.• The pipe should be anchored every 1.5m or less to isolate the vibration.• Tighten a flare joint securely.ScrewSide coverBFlared pipe end : A (mm)Copper pipeouter diameterø6.35ø15.88Copper pipeouter diameterø6.35ø15.880A –049.119.7Copper pipe protrusion for flaring : B0~ 0.5 1.0~ 1.5(mm)In the case of a rigid (clutch) typeWith an R410A tool With a conventional tool- 35 - '11 • SRK-T-105CAUTIONDo not apply force beyond proper fastening torque in tightening the flare nut.Fix both liquid and gas operation valves at the valve main bodies as illustrated on the right, and then fasten them,applying appropriate fastening torque.Operation valve size (mm)ø6.35 (1/4")ø15.88 (5/8")Tightening torque (N·m)14~ 1868~ 82Tightening angle ( )45~ 6015~ 20Recommended length of a tool handle (mm)150300Do not hold the valve cap area with a spanner.Use a torque wrench. If a torque wrench is notavailable, fasten the flare nut manually first and thentighten it further, using the left table as a guide.

6) EvacuationWhen the system has remaining moistureinside or a leaky point, the vacuum gaugeindicator will rise.Check the system for a leaky point andthen draw air to create a vacuum again.Air tightness test completedVacuuming beginsRun the vacuum pump for at least one hour after the vacuumgauge shows –0.1MPa or lower. (–76cmHg or lower)Vacuuming completedConfirm that the vacuum gauge indicator does not rise even ifthe system is left for one hour or more.Vacuum gauge checkFill refrigerantPay attention to the following points in addition to the above for the R410A and compatible machines.• To prevent a different oil from entering, assign dedicated tools, etc. to each refrigerant type. Under no circumstances must agauge manifold and a charge hose in particular be shared with other refrigerant types (R22, R407C, etc.).• Use a counterflow prevention adapter to prevent vacuum pump oil from entering the refrigerant system.Operation valve(two-way valve)Operation valve cap-0.1MPa(-76cmHg)Compound pressure gaugePressure gaugeGauge manifoldHandle Lo(Designed specifically for R410A)Handle HiOperation valveCharge hose(three-way valve)(Designed specifically for R410A)Vacuum pump adapterOperation valve cap(Anti-reverse flow type)(Designed specifically for R410A)Vacuum pumpCheck jointCharge hose (Designed specifically for R410A)Securely tighten the operation valve cap and the check joint blind nut after adjustment.Operation valve size Operation valve cap Check joint blind nut(mm)tightening torque (N·m) tightening torque (N·m)10~ 12ø6.35 (1/4")ø15.88 (5/8")20~ 3030~ 407) Additional refrigerant charge(1) Calculate a required refrigerant charge volume from the following table.Additional charge volume (kg)per meter of refrigerant piping(liquid pipe ø6.35)Refrigerant volume chargedfor shipment at the factory(kg)Installation’s pipe length (m)covered without additionalrefrigerant charge0.025 1.80 15• This unit contains factory charged refrigerant covering 15m of refrigerant piping and additional refrigerantcharge on the installation site is not required for an installation with up to 15m refrigerant piping.When refrigerant piping exceeds 15m, additionally charge an amount calculated from the pipe length andthe above table for the portion in excess of 15m.Formula to calculate the volume of additional refrigerant requiredAdditional charge volume (kg) = { Main length (m) – Factory charged volume 15 (m) } x 0.025 (kg/m)* When an additional charge volume calculation result is negative, it is not necessary to charge refrigerantadditionally.• For an installation measuring 15m or shorter in pipe length, please charge the refrigerant volume chargedfor shipment at the factory, when you recharge refrigerant after servicing etc.(2) Charging refrigerant• Since R410A refrigerant must be charged in the liquid phase, you should charge it, keeping the containercylinder upside down or using a refrigerant cylinder equipped with a siphon tube.• Charge refrigerant always from the liquid side service port with the operation valve shut. When you find itdifficult to charge a required amount, fully open the outdoor unit valves on both liquid and gas sides andcharge refrigerant from the gas (suction) side service port, while running the unit in the cooling mode. Indoing so, care must be taken so that refrigerant may be discharged from the cylinder in the liquid phaseall the time. When the cylinder valve is throttled down or a dedicated conversion tool to change liquidphase refrigerant into mist is used to protect the compressor, however, adjust charge conditions so thatrefrigerant will gasify upon entering the unit.• In charging refrigerant, always charge a calculated volume by using a scale to measure the chargevolume.• When refrigerant is charged with the unit being run, complete a charge operation within 30minutes.Running the unit with an insufficient quantity of refrigerant for a long time can cause a compressor failure.NOTE Put down the refrigerant volume calculated from the pipe length onto the caution label attachedon the service panel.- 36 - '11 • SRK-T-1058) Heating and condensation prevention(1) Dress refrigerant pipes (both gas and liquid pipes) for heat insulation and prevention of dew condensation.• Improper heat insulation/anti-dew dressing can result in a water leak or dripping causing damage to household effects, etc.(2) Use a heat insulating material that can withstand 120 C or a higher temperature. Poor heat insulating capacity can cause heat insulation problems or cabledeterioration.• All gas pipes must be securely heat insulated in order to prevent damage from dripping water that comes from the condensation formed on them during a coolingoperation or personal injury from burns because their surface can reach quite a high temperature due to discharged gas flowing inside during a heating operation.• Wrap indoor units’ flare joints with heat insulating parts (pipe cover) for heat insulation (both gas and liquid pipes).• Give heat insulation to both gas and liquid side pipes. Bundle a heat insulating material and a pipe tightly together so that no gaps may be left between them andwrap them together with a connecting cable by a dressing tape.• Both gas and liquid pipes need to be dressed with 20mm or thicker heat insulation materials above the ceiling where relative humidity exceeds 70%.Band (accessory)Wires for connecting indoorand outdoor unitsLiquid pipingPipe cover (accessory)Exterior tapeGas pipingInsulation

3. DRAIN PIPING WORK• Execute drain piping by using a drain elbow and draingrommets supplied separately as optional parts, wherewater drained from the outdoor unit is a problem.• Water may drip where there is a larger amount of drainwater. Seal around the drain elbow and draingrommets with putty or adequate caulking material.• Condensed water may flow out from vicinity ofoperation valve or connected pipes.• Where you are likely to have several days of sub-zerotemperatures in a row, do not use a drain elbow anddrain grommets. (There is a risk of drain water freezinginside and blocking the drain.)GrommetDrain elbowGrommetCAUTIONDo not put a grommet onthis hole.This is a supplementarydrain hole to dischargedrain water, when a largequantity of it is gathered.Drain hose(To be procured on the installer’s part)• When condensed water needs to be led to a drain, etc., installthe unit on a flat base (supplied separately as an optional part)or concrete blocks.Then, please secure space for the drain elbow and the drainhose.Clearance4. ELECTRICAL WIRING WORK For details of electrical cabling, refer to the indoor unit installation manual.- 37 - '11 • SRK-T-105Electrical installation work must be performed by an electrical installation service provider qualified by a power provider of the country.Electrical installation work must be executed according to the technical standards and other regulations applicable to electrical installations in the country.• Do not use any supply cord lighter than one specified in parentheses for each type below.• braided cord (code designation 60245 IEC 51)• ordinary tough rubber sheathed cord (code designation 60245 IEC 53)• flat twin tinsel cord (code designation 60227 IEC 41)Use polychloroprene sheathed flexible cord (code designation 60245 IEC57) for supply cords of parts of appliances for outdoor use.• Ground the unit. Do not connect the grounding wire to a gas pipe, water pipe, lightning rod or telephone grounding wire.If improperly grounded, an electric shock or malfunction may result.• A grounding wire must be connected before connecting the power cable. Provide a grounding wire longer than the power cable.• The installation of an impulse withstanding type earth leakage breaker is necessary. A failure to install an earth leakage breaker can result in an accidentsuch as an electric shock or a fire.• Do not turn on the power until the electrical work is completed.• Do not use a condensive capacitor for power factor improvement under any circumstances. (It dose not improve power factor, while it can cause anabnormal overheat accident)• For power supply cables, use conduits.• Do not lay electronic control cables (remote control and signaling wires) and other cables together outside the unit. Laying them together can result inthe malfunctioning or a failure of the unit due to electric noises.• Fasten cables so that may not touch the piping, etc.• When cables are connected, make sure that all electrical components within the electrical component box are free of loose connector coupling orterminal connection and then attach the cover securely. (Improper cover attachment can result in malfunctioning or a failure of the unit, if waterpenetrates into the box.)• Always use a three-core cable for an indoor-outdoor connecting cable. Never use a shield cable.CAUTIONIn case of faulty wiring connection, the indoor unit stops,and then the run lamp turns on and the timer lamp blinks.Use cables for interconnection wiring to avoid loosening of the wires.CENELEC code for cables Required field cables.H05RNR4G1.5 (Example) or 245IEC57H Harmonized cable type05 300/500 voltsR Natural-and/or synth. rubber wire insulationN Polychloroprene rubber conductors insulationR Stranded core4or5 Number of conductorsG One conductor of the cable is the earth conductor(yellow/green)1.5 Section of copper wire (mm 2 )

Power cable, indoor-outdoor connecting wiresPower supply terminal blockCable clamp• It holds cables in place and protect theterminal connection from external force.• This clamp is for the cable in the outsidediameter 9~15mm.Please adjust it when not suitable.Cable name plate• It has stuck on the lid of a control box.Grounding terminal• Please be sure to carry out D-type (typeIII) grounding work.CAUTIONL N 1 2 3Safetybreaker20AEarthleakagecircuitbreakerPowersupplyOutdoor unitEarth1 2 3Indoor unitWhen wire lengthexceeds 30m, use2.5mm 2 wires.• Always perform grounding system installation work with the power cord unplugged.• Connect a pair bearing a common terminal number with an indoor-outdoor connecting wire.• In cabling, fasten cables securely with cable clamps so that no external force may work on terminal connections.• Grounding terminals are provided in the control box.CAUTIONPhaseSingle-phaseAlways use an earth leakage circuit breaker designed for inverter circuits toprevent a faulty operation.Earth leakage breaker20A, 30mA,0.1sec or lessSwitchgear or Circuit BreakerOver current protectorSwitch breakerrated capacityPower source(minimum)Interconnecting andgrounding wires(minimum)30A 20A 2.5mm 2 1.5mm 2 X 4• The specifications shown in the above table are for units without heaters. For units with heaters, refer to theinstallation instructions or the construction instructions of the indoor unit.• Switchgear or Circuit breaker capacity which is calculated from MAX. over current should be chosen along theregulations in each country.• The cable specifications are based on the assumption that a metal or plastic conduit is used with no more thanthree cables contained in a conduit and a voltage drop is 2%. For an installation falling outside of theseconditions, please follow the internal cabling regulations. Adapt it to the regulation in effect in each country.Please connect the earthedline of indoor and outdoorconnecting wire to a bracketpart of the illustration.Power cableIndoor - Outdoorconnecting wire- 38 - '11 • SRK-T-105INSTALLATION TEST CHECK POINTSCheck the following points again after completion of the installation, and before turning on the power. Conduct a test run again and ensure that the unit operates properly.Explain to the customer how to use the unit and how to take care of the unit following the installation manual.After installationPower cables and connecting wires are securely fixed to the terminal block.The power supply voltage is correct as the rating.The drain hose is fixed securely.Operation valve is fully open.No gas leaks from the joints of the operation valve.The pipe joints for indoor and outdoor pipes have been insulated.The reverse flow check cap is attached.The cover of the pipe cover (A) faces downward to prevent rain from entering.Gaps are properly sealed between the pipe covers (A) (B) and the wall surface / pipes.

9 OUTLINE OF OPERATION CONTROL BY MICROCOMPUTER(1) Operation control function by remote controllerOperation sectionFAN SPEED buttonEach time the button is pressed, thedisplay is switched over in turn.HI POWER/ECONO buttonThis button changes the HIGH POWER/ECONOMY mode.ALLERGEN CLEAR buttonThis button selects ALLERGEN CLEARoperation.TEMPERATURE buttonThese button set the room temperature.(These buttons are used for setting thecurrent time and timer function aswell.)SLEEP buttonThis button selects SLEEP operation.CLEAN switchThis switch selects the CLEAN mode.ON TIMER buttonThis button selects ON TIMER operation.Unit display sectionRemote control signal receiverUnit ON/OFF buttonThis button can be used for turning on/off the unit whenremote control is not available.RUN (HOT KEEP) light (green)• Illuminates during operation.• Blinks when airflow stops due to the ‘HOTKEEP’ and ‘CLEAN operation’.1.5 sec.ONHOT KEEPOFF0.5 sec.3 sec.ONCLEAN operationOFF1 sec.'11 • SRK-T-105OPERATION MODE select buttonEach time the button pressed, thedisplay is switched over in turn.ON/OFF (luminous) buttonPress to start operation, press again tostop.AIR FLOW (UP/DOWN) buttonThis button changes the air flow (up/down) direction.AIR FLOW (LEFT/RIGHT) buttonThis button changes the air flow (left/right) direction.CANCEL buttonThis button cancels the ON timer, OFFtimer, and SLEEP operation.OFF TIMER buttonThis button selects OFF TIMERoperation.ACL switchSwitch for resetting microcomputer.TIME SET UP switchThis switch is for setting the time.HI POWER ECONOON/OFFECONO light (orange)Illuminates during ECONOMY operation.HI POWER light (green)Illuminates during HIGH POWER operation.TIMER light (yellow)Illuminates during TIMER operation.- 39 -• The above illustration shows all controls, but inpractice only the relevant parts are shown.RUNTIMER

(2)Unit ON/OFF button(a) Operation(b) Details of operationFunctionoperation modeCoolingThermal dryHeating(3)Auto restart function(a)(b)1)2)(J170)(4)Custom cord switching procedure(a) Modifying the indoor printed circuit board(b) Modifying the wireless remote controller1)2)Indoor temperaturesettingFan speed Flap/Louver Timer Switch'09•SRK-DB-087DUnit ON/OFF button'11 • SRK-T-105Jumper wire (J170)Jumper wire (J171)(J171)Cut- 40 -

- 41 1) - 2)'11 • SRK-T-105(5) Selection of the annual cooling function(a) The annual cooling function can be enabled or disabled by meansof the jumper wire (J172) on the indoor unit PCB and the dip switch(SW2-4) on the interface kit (optional) PCB.Interface kitJumper wire(SC-BIKN-E)(J172)SW2-4FunctionShorted ON EnabledShorted OFF DisabledOpen ON DisabledOpen OFF Disabled Jumper wire (J172)Note: (1) Default states of the jumper wire (J172) and the interface kit at the shipping from factory – On theONPCB, the dip switch (SW2-4) is set to enable the annual cooling function.OFF(2) To cancel the annual cooling setting, consult your dealer.(b) Content of control5 71) If the outdoor air temperature sensor (TH2) detects below 5°C, the indoor unitspeed is switched to 9th step. (It is not possible to change.)Outdoor air temperature ( C)'09•SRK-DB-087D2) If the outdoor air temperature sensor (TH2) detects higher than 7°C, the indoorunit speed is changed to the normal control speed.(6)Flap and louver control(a) Flap(Flap stopped)(Swing)Angle of Flap from HorizontalRemote controllerdisplayCOOL , DRY, FANHEATApprox. 5°Approx. 25°Approx. 25°Approx. 40°Approx. 35°Approx. 50°Approx. 55°Approx. 60°Approx. 80°Approx. 80°(b) Louver(Louver stopped)(Swing)Angle of LouverRemote controllerdisplayCenter installation Left Approx. 50° Left Approx. 20° Center Right Approx. 20° Right Approx. 50°(c) Swing

displayCenter installationLeft Approx. 50° Left Approx. 20° Center Right Approx. 20° Right Approx. 50°Thermostat ON Thermostat - 42 - OFF Failure'11 • SRK-T-105(c) Swing1) 2)In HEAT operationIn COOL, DRY, FAN operationApprox.5°Approx. 35°Approx. 60°Approx. 80°(c) Memory flap (Flap or Louver stopped)(d) When not operating(e) Multi-directional Air Flow (up/down air scroll and left/right air scroll)Activating both up/down air swing and left/right air swing at the same time results in a multi-directional air flow.Up/down air scrollLeft/right air scrollIn COOL, DRY and FAN operation In HEAT operation In COOL, DRY and FAN operation In HEAT operationStops at this positionStops at this positionfor 5 seconds.for 5 seconds.Left louver Right louverThick line : moves quicklyThin line : moves slowly(7)Timer operation(a) Comfortable timer setting (ON timer)(b) Sleep timer operation(c) OFF timer operation(8)Outline of heating operation(a) Operation of major functional components in heating modeHeatingCompressorIndoor fan motorOutdoor fan motorONONONOFFON(HOT KEEP)OFF(few minutes ON)OFFOFFOFF

(b) Sleep timer operation(c) OFF timer operation- 43 - '11 • SRK-T-105(8)Outline of heating operation(a) Operation of major functional components in heating modeHeatingThermostat ON Thermostat OFF FailureCompressorONOFFOFFIndoor fan motorONON(HOT KEEP)OFFOutdoor fan motorONOFF(few minutes ON)OFF4-way valveONONOFF(3 minutes ON)(b) Details of control at each operation mode (pattern)1) Fuzzy operationModelFan speedSRK63ZK-S SRK71ZK-S SRK80ZK-SAuto20~106rps20~116rps20~120rpsHI20~106rps20~116rps20~120rpsMED20~106rps20~116rps20~120rpsLO20~88rps20~98rps20~96rpsULO20~52rps20~58rps20~60rps2) Hot keep operation(c) Defrosting operation1)a)35b)35c)d) 2 2 0-5-10Defrost operationstart-15-20-20 -15 -10 -5 0 5 10Outdoor air temperature (℃)e)a) b) c) e)2)a)Outdoor heat exchanger temperature (℃)Defrost operation start temperature

1) 1) - 44 -2) When both the indoor and the outdoor air temperatures are in the range “A”, cooling or heating is switched depending on2) When both the indoor and the outdoor air temperatures are in the range “A”, cooling or heating is switched depending onthe difference between the setting temperature and the indoor air temperature.the difference between the setting temperature and the indoor air temperature.'11 • SRK-T-105e)a) b) c) e)2)a)b)16 minutes and 50 seconds.¡Defrast operationHeating operationMax. 16 minutes and 50 seconds2~7 minutes '09•SRK-DB-087D'09•SRK-DB-087DHot keep operationDepends on an operation condition, the time can be longer than 7 minutes.(9)Outline of cooling operation(9)Outline of cooling operation(a)Operation of major functional components in Cooling mode(a)Operation of major functional components in Cooling modeCoolingThermostat ONCoolingThermostat OFF FailureCompressorThermostat ONONThermostat OFFOFFFailureOFFCompressorIndoor fan motorONONOFFONOFFOFFIndoor fan motorONOutdoor fan motorONOFFONOFFOFF(few minutes ON)(few minutes ON)Outdoor fan motorONOFFOFF(few minutes ON)(few minutes ON)4-way valveOFF OFF OFF4-way valveOFF OFF OFF(b) Detail of control in each mode (Pattern)(b) Detail of control in each mode (Pattern)1) Fuzzy operation1) Fuzzy operationModelModel SRK63ZK-S SRK71ZK-S SRK80ZK-SFan speedSRK63ZK-S SRK71ZK-S SRK80ZK-SFan speedAuto20~78rps20~90rps20~98rpsAutoHIHIMEDMEDLOLOULO20~78rps20~78rps20~78rps20~61rps20~61rps20~50rps20~50rps20~36rps20~90rps20~90rps20~90rps20~74rps20~74rps20~56rps20~56rps20~36rps20~98rps20~98rps20~98rps20~78rps20~78rps20~56rps20~56rps20~36rpsULO20~36rps20~36rps20~36rps(10)Outline of automatic operation(10)Outline of automatic operation(a) Determination of operation mode(a) Determination of operation modeCooling27.5Cooling27.525.525.5Indoor air temperature (˚C)ADehumidifyingIndoor air temperature (˚C)ADehumidifying18.018.0HeatingHeating18 30Outdoor air18temperature (˚C)30Outdoor air temperature (˚C)(b)(b)

Indoor air temperature (˚C)18.0ADehumidifyingHeating'11 • SRK-T-10518 30Outdoor air temperature (˚C)(b)1) 2) When both the indoor and the outdoor air temperatures are in the range “A”, cooling or heating is switched depending onthe difference between the setting temperature and the indoor air temperature.3) When the operation mode has been judged following the change of setting temperature with the remote controller, the hourlyjudgment of operation mode is cancelled.(c)(d)Signals of wireless remote controller (Display)–6 –5 –4 –3 –2 –1 0 +1 +2 +3 +4 +5 +6CoolingSettingDehumidifyingtemperatureHeating(e) When the unit is operated automatically with the wired remote controller connected, the cooling operation is controlled accordingto the display temperatures while the setting temperature is compensated by +1°C during dehumidifying or by +2°C duringheating.(11) Protection control function(a) Dew prevention control [Cooling]: Prevents dewing on the indoor unit.1) Operating conditions: When the following conditions have been met for more than 30 minutes after starting operationa) Compressor’s command speed is 28 rps or higher.b) Detected value of humidity is 68% or higher.2) Contents of operationa) Air capacity controlModelItemSRK63ZK-S SRK71ZK-S SRK80ZK-SULoUpper limit of compressor’s command speed (1)Range A: As per following table, Range B: 40 rpsIndoor fan4th speedMe, Upper limit of compressor’s command speed (1) Range A: As per following table, Range B: 40 rpsHi, LoIndoor fanAdaptable to compressor’s command speed (4th to 9th speed)Note (1) Ranges A and B are as shown below.● Condition for range ARange BCompressor’s command rps is controlled according to the indoor unitheat exchanger temperature (Th2) and the indoor unit room temperatureRange A(Th1).CancelConditionCompressor’s command rps63 68 78・ Decreases the compressor’s target max speedHumidity (%)by 4 rps.Th2 ≦ Th1 ‒ 10・ If the condition is met still 20 seconds later,the speed is decreased further by 4 rps. Thisprocess is repeated further so far as thecondition is met. (Lower limit is 30 rps.)Compressor’s target max. speed or changedTh1 ‒ 10 < Th2 ≦ Th1 ‒ 6value of the same is maintained.Th2 ‒ 6 < Th1Changed compressor’s target max. speed isincreased at a rate of 1 rps/20 seconds.

'11 • SRK-T-105b) When this control has continued for more than 30 minutes continuously, the following wind direction control is performed.i) When the vertical wind direction is set at other than the vertical swing, the flaps change to the horizontal position.ii) When the horizontal wind direction is set at other than the horizontal swing, the louver changes to the vertical position.'09•SRK-DB-087D3) Resetting condition: When any of followings is meta) Compressor’s command speed is less than 28 rps.b) Detected value of humidity is less than 63%.(b) Frost prevention control1) Operating conditionsa)b)compressorcommandspeed2) Detail of anti-frost operationLowerIndoor heat exchangerlimitItemtemperature 5°C or lower 2.5°C or lowerspeedLower limit of compressor command speed0 rpsIndoor fan2.5 5 8Outdoor fan4-way valveIndoor heat exchangertemperature (ºC)3) Reset conditions:a)b)(c) Cooling overload protective control1) Operating conditions:more, or 47ºC or more with the compressor running, the lower limitModelItemSRK63, 71, 80ZK-SOutdoor air temperatureLower limit speed2) Detail of operationThe lower limit of compressor command speed is set to 30 or 40 rps and even if the calculated result becomes lower thanthat after fuzzy calculation, the speed is kept to 30 or 40 rps. However, when the thermo becomes OFF, the speed isreduced to 0 rps.3) Reset conditions:a)b)(d) Cooling high pressure control1) Purpose:2) Detector:3) Detail of operation:(Example) FuzzyAfter lapse of 30 sec. or over (3)6rps (1)After lapse of 30 sec. or over (3)6rps (1)lower limitAfter lapse of 30 sec. or over (3)speed 30 rps53 58 60Outdoor heat exchanger temperature (°C)

educed to 0 rps.3) Reset conditions:'11 • SRK-T-1056rps (1) 6rps (1)a)- 47 -b)(d) Cooling high pressure control1) Purpose:2) Detector:3) Detail of operation:(Example) FuzzyAfter lapse of 30 sec. or over (3)After lapse of 30 sec. or over (3)lower limitAfter lapse of 30 sec. or over (3)speed 30 rps0rps53 58 60Outdoor heat exchanger temperature (°C)'09•SRK-DB-087D60 2060(e) Cooling low outdoor air temperature protective control1) Operating conditions:2) Detail of operation:a)40 than40 (30) rps, the speed is kept to 40 (30) rps. However, when the thermo becomes OFF,the speed isb)60 7560 75ON Upper limit 60 rpsLower limit 40 rpsON Upper limit 75 rpsLower limit 30 rpsOFFA B C DOutdoor air temperature.(°C)Outdoor air temperature (˚C)A B C DFirst timeSince theseconds times3) Reset conditions:a)b)

ii) The lower limit of compressor command speed-is48 - set to 30 rps and even if the calculated result becomes lower thanthat after fuzzy calculation, the speed is kept to 30 rps. However, when thethermo becomes OFF, the speed is'11 • SRK-T-105(f) Heating high pressure control1) Purpose:2) Detector:3) Detail of operation:(Example) FuzzyAfter lapse of 20 sec. or over (3) 4rps (1)After lapse of 20 sec. or over (3) 4rps (1)8rps (2) 8rps (2)After lapse of 20 sec. or over (3) lower limitspeed 30 rps0rpsA B C DIndoor heat exchanger temperature(°C)'09•SRK-DB-087DModel 50Temperature listA B C DRPSmin < 4049535558A B C D40 < = RPSmin < 8053575962RPSmin < 9045 52 5780 < = RPSmin < 9053 ~ 4757 ~ 5159 ~ 535890 < RPSmin < 108 45 ~ 43 52 ~ 45 57 ~ 48 56.590 < = RPSmin < 102 47 ~ 4151 ~ 4553 ~ 4751108

Normal operation'11 • SRK-T-10510 11 19 20- 49 -Outdoor air temperature(°C)c) Reset conditions: 11 .(h) Heating low outdoor temperature protective control1) Operating conditions:42) Detail of operation:Lower limit 40 rpsLower limit 35 rps'09•SRK-DB-087DNormal operation-8 -6 4 6Outdoor air temperature(°C)3) 3)Reset conditions: When either of the following condition is satisfied.a)a)The outdoor air temperature (TH2) becomes66ºC.b)The compressor command speed is 0 rps.b)(i) Compressor overheat protection1) Purpose:2) Detail of operationa)(Example) Fuzzy18018018095 105 115Discharge pipe temperature (˚C)105 11595 10518095 105180ModelItem Cooling HeatingLower limit speed25 rps 32 rpsb)115(j) Current safe1) Purpose:2) Detail of operation:(k) Current cut1) Purpose:2) Detail of operation:(l) Outdoor unit failureitem 1), 2) is satisfied. Once the unit is stopped by this function, ti is not

2) Detail of operation:- 50 - a)24b)'11 • SRK-T-105(k) Current cut1) Purpose:2) Detail of operation:(l) Outdoor unit failureitem 1), 2) is satisfied. Once the unit is stopped by this function, ti is not1)2)(m) Indoor fan motor protection'09•SRK-DB-087D(n) Serial signal transmission error protection1) Purpose:2) Detail of operation:(o) Rotor lock(p) Outdoor fan motor protection(q) Outdoor fan control at low outdoor temperature(i) Cooling1) Operating conditions:2) Detail of operation:Outdoor fanOutdoor temperature > 10˚COutdoor temperature < = 10˚Ca)b)4040c)40403) Reset conditions:(ii)Heating

(q)c)4040'11 • SRK-T-105403) Reset conditions:a)24b)(ii) Heating1) Operating conditions:Heating40 < = N0 < = Th1 < = 40Th2

'09•SRK-DB-087D'11 • SRK-T-105Reference10 2 TROUBLESHOOTING MAINTENANCE DATA PROCEDURES FOR ELECTRICAL EQUIPMENT(1) Cautions (2) Items to check before troubleshooting (3) Troubleshooting procedure (If the air conditioner does not run at all)Important NOYES NO YESNOYES NOYES- 52 -

'09•SRK-DB-087D'11 • SRK-T-105(4) Troubleshooting procedure (If the air conditioner runs)NOYES54NO55 ~ 61.YESYESNO55 ~ 61.YESNO- 53 -

(5) Self-diagnosis tableIndoor unit display panelRUNlight1 timeflash2 timeflash3 timeflash6 timeflashKeepsflashingKeepsflashingONONONONONONONON2 timeflash5 timeflash7 timeflash—TIMERlightONONONON2 timeflash4 timeflash1 timeflash2 timeflash3 timeflash4 timeflash5 timeflash6 timeflash7 timeflashKeepsflashing2 timeflashONON—Wired (2)remotecontrollerdisplay———E 16Keeps 1 timeflashing flashE 38E 37E 39E 42E 59E 58E 51E 36E 5E 48E 35E 60E 47E 57E 1Descriptionof troubleHeat exchangersensor 1 errorRoomtemperaturesensor errorHeat exchangersensor 2 errorIndoor fanmotor errorOutdoor airtemperaturesensor errorOutdoor heatexchangersensor errorDischarge pipesensor errorCurrent cutTrouble ofoutdoor unitCurrent safestopPowertransistorerrorOver heat ofcompressorError of signaltransmissionOutdoor fanmotor errorCooling highpressureprotectonRotor lockActive filtervoltage errorRefrigerationcycle systemprotectivecontrolError of wiredremote controllerwiring'09•SRK-DB-087D'11 • SRK-T-105CauseDisplay (flashing) conditionWhen a heat exchanger sensor 1 wire disconnection is detected whileoperation is stopped. (If a temperature of –28ºC or lower is detected for15 seconds, it is judged that the wire is disconnected.)(Not displayed during operation.)When a room temperature sensor wire disconnection is detected whileoperation is stopped. (If a temperature of –45ºC or lower is detected for15 seconds, it is judged that the wire is disconnected.)(Not displayed during operation.)When a heat exchanger sensor 2 wire disconnection is detected whileoperation is stopped. (If a temperature of –28ºC or lower is detected for15 seconds, it is judged that the wire is disconnected.)(Not displayed during operation.)When conditions for turning the indoor unit’s fan motor on exist during airconditioner operation, an indoor unit fan motor speed of 300 rpm or lower ismeasured for 30 seconds or longer. (The air conditioner stops.)–55ºC or lower is detected for 5 seconds continuously 3 times within40 minutes after initial detection of this anomalous temperature.Or –55ºC or higher is detected for within 20 seconds after power ON.(The compressor is stopped.)–55ºC or lower is detected for 5 seconds continuously 3 times within40 minutes after initial detection of this anomalous temperature.Or –55ºC or higher is detected for within 20 seconds after power ON.(The compressor is stopped.)–25ºC or lower is detected for 5 seconds continuously 3 times within 40minutes after initial detection of this anomalous temperature.(The compressor is stopped.)The compressor output current exceeds the set value during compressorstart.,(The air conditioner stops.)When there is an emergency stop caused by trouble in the outdoor unit,or the input current value is found to be lower than the set value.(The air conditioner stops.)When the compressor command speed is lower than the set value andthe current safe has operated. (the compressor stops)When the power transistor is judged breakdown while compressorstarts.(The compressor is stopped.)When the value of the discharge pipe sensor exceeds the set value.(The air conditioner stops.)When there is no signal between the indoor PCB and outdoor PCB for10 seconds or longer (when the power is turned on), or when there is nosignal for 7 minute 35 seconds or longer (during operation)(thecompressor is stopped).When the outdoor unit’s fan motor speed continues for 30 seconds orlonger at 75 rpm or lower. (3 times) (The air conditioner stops.)When the value of the outdoor heat exchanger sensor exceeds the setvalue.If the compressor motor’s magnetic pole positions cannot be correctlydetected when the compressor starts.(The air conditioner stops.)When the wrong voltage connected for the power supply.When the outdoor PCB is faulty.When refrigeration cycle system protective control operates.The wired remote controller wire Y is open. The wired remotecontroller wires X and Y are reversely connected. Noise is penetratingthe wired remote controller lines. The wired remote controller or indoorPCB is faulty. (The communications circuit is faulty.)- 54 -• Broken heat exchanger sensor1 wire, poor connectorconnection• Indoor PCB is faulty• Broken room temperaturesensor wire, poor connectorconnection• Indoor PCB is faulty• Broken heat exchanger sensor2 wire, poor connectorconnection• Indoor PCB is faulty• Defective fan motor, poorconnector connection• Broken outdoor air temp.sensor wire, poor connectorconnection• Outdoor PCB is faulty• Broken heat exchanger sensorwire, poor connectorconnection• Outdoor PCB is faulty• Broken discharge pipe sensorwire, poor connectorconnection• Outdoor PCB is faulty• Compressor locking, open phaseon compressor output, shortcircuit on power transistorservice valve is closed• Broken compressor wire• Compressor blockage• Overload operation• Overcharge• Compressor locking• Broken power transistor• Gas shortage, defectivedischarge pipe sensor, servicevalve is closed• Defective power supply,Broken signal wire, defectiveindoor/outdoor PCB• Defective fan motor, poorconnector connection• Overload operation, overcharge• Broken outdoor heat exchangesensor wire• Service valve is closed• Defective compressor• Open phase on compressor• Defective outdoor PCB• Defective active filter• Service valve is closed.• Refrigerant is insufficient• Broken wired remote controllerwire, defective indoor PCB

'09•SRK-DB-087D'11 • SRK-T-105(6) Service mode (Trouble mode access function)(a) Explanation of termsTermExplanationThe service mode is the mode where service data are displayed by flashing of the display lightsService modewhen the operations in item (b) below are performed with the indoor controller.These are the contents of error displays and protective stops which occurred in the past in the airconditioner system. Error display contents and protective stop data from past anomalousService data operations of the air conditioner system are saved in the indoor unit controller’s non-volatilememory (memory which is not erased when the power goes off). There are two types of data,self-diagnosis data and stop data, described below.These are the data which display the reason why a stop occurred when an error display(selfdiagnosisdisplay) occurred in an indoor unit. Data are recorded for up to 5 previous occurrences.Data which are older than the 5th previous occurrence are erased.Self-diagnosis data In addition, data on the temperature of each sensor (room temperature, indoor heat exchanger,outdoor heat exchanger, outdoor air temperature, discharge pipe), remote controller information(operation switching, fan speed switching) are recorded when trouble occurs, so more detailedinformation can be checked.These are the data which display the reason by a stop occurred when the air conditioning systemperformed protective stops, etc. in the past. Even if stop data alone are generated, the systemrestarts automatically. (After executing the stop mode while the display is normal, the systemrestarts automatically.) Data for up to 10 previous occasions are stored. Data older than the 10thStop dataprevious occasion are erased.( Important) In cases where transient stop data only are generated, the air conditioner systemmay still be normal. However, if the same protective stop occurs frequently (3 ormore times), it could lead to customer complaints.(b) Service mode display procedure58.)56.)- 55 -

- - '09•SRK-DB-087D'11 • SRK-T-1051) Self-diagnosis data Remote controller setting Contents of output data Remote controller setting Indicates the number ofoccasions previous to the presentTemperature setting the error display data are from.21ºC22ºC23ºC24ºC25ºC1 time previous (previous time)2 times previous3 times previous4 times previous5 times previousOnly for indoor heat exchanger sensor 2Remote controller setting Indicates the number ofoccasions previous to the presentTemperature setting the error display data are from.26ºC1 time previous (previous time)27ºC2 times previous28ºC3 times previous29ºC4 times previous30ºC5 times previous56

(Example)OperationswitchingCooling2) Stop dataOperationswitchingCoolingRemote controller settingFan speedswitchingMEDRemote controller settingFan speedswitchingLOTemperaturesetting21ºC22ºC23ºC24ºC25ºCTemperaturesetting21ºC22ºC23ºC24ºC25ºC26ºC27ºC28ºC29ºC30ºC'09•SRK-DB-087D'11 • SRK-T-105Displayed dataDisplays the reason for the stop (error code) the previous time an error was displayed.Displays the reason for the stop (error code) 2 times previous when an error was displayed.Displays the reason for the stop (error code) 3 times previous when an error was displayed.Displays the reason for the stop (error code) 4 times previous when an error was displayed.Displays the reason for the stop (error code) 5 times previous when an error was displayed.Displayed dataDisplays the reason for the stop (stop code) the previous time when the air conditioner was stopped by protective stop control.Displays the reason for the stop (stop code) 2 times previous when the air conditioner was stopped by protective stop control.Displays the reason for the stop (stop code) 3 times previous when the air conditioner was stopped by protective stop control.Displays the reason for the stop (stop code) 4 times previous when the air conditioner was stopped by protective stop control.Displays the reason for the stop (stop code) 5 times previous when the air conditioner was stopped by protective stop control.Displays the reason for the stop (stop code) 6 times previous when the air conditioner was stopped by protective stop control.Displays the reason for the stop (stop code) 7 times previous when the air conditioner was stopped by protective stop control.Displays the reason for the stop (stop code) 8 times previous when the air conditioner was stopped by protective stop control.Displays the reason for the stop (stop code) 9 times previous when the air conditioner was stopped by protective stop control.Displays the reason for the stop (stop code) 10 times previous when the air conditioner was stopped by protective stop control.- 57 -

(c) Error code, stop code tableNumber of flashes when inservice mode Stop coadRUN TIMER orlight light Error coad(10's digit) (1's digit)OFF 0 NormalOFF3 timeflash4 timeflash5 timeflash6 timeflash8 timeflash5 timeflash5 timeflash6 timeflash7 timeflash8 timeflash9 timeflash2 timeflash7 timeflash8 timeflash1 timeflash7 timeflash8 timeflash9 timeflashOFF1 timeflash2 timeflashOFF2 timeflash4 timeflash5 timeflash6 timeflash053536373839424748515758596061628082848586Can not receive signals for 35seconds(if communications have recovered)Cooling high pressure controlCompressor overheat 115°COutdoor heat exchanger sensoris abnormalOutdoor air temperature sensoris abnormalDischarge pipe sensor isabnormal (anomalous stop)Current cutActive filter voltage errorOutdoor unit's fan motor isabnormalShort circuit in the powertransistor (high side)Current cut circuit breakdownRefrigeration cycle systemprotective controlCurrent safeCompressor wiring is unconnectionVoltage dropLow speed protective controlRotor lockConnection lines between theindoor and outdoor units arefaultySerial transmission errorIndoor unit's fan motor isabnormalIndoor heat exchanger sensoris abnormal (anomalous stop)Anti-condensation controlAnti-frost controlHeating high pressure control'09•SRK-DB-087D'11 • SRK-T-105Error Autodisplay recoveryWhen 35 seconds passes withoutcommunications signals from either the outdoor unit orthe indoor unit being detected correctly.When the outdoor heat exchanger sensor's value exceedsthe set value.(5 times)When the discharge pipe sensor's value exceeds the setvalue.(2 times)–55°C or lower is detected for 5 seconds continuously 3 timeswithin 40 minutes after intial detection of this anomaloustemperature.Or–55°C higher is detected for 5 seconds continuously(3 times)within 20 seconds after power ON.–55°C or lower is detected for 5 seconds continuously 3 timeswithin 40 minutes after intial detection of this anomaloustemperature.(3 times)Or–55°C higher is detected for 5 seconds continuouslywithin 20 seconds after power ON.–25°C or lower is detected for 5 seconds continuously 3 timeswithin 40 minutes after intial detection of this anomaloustemperature.(3 times)Compressor start fails 42 times in succession and thereason for the final failure is current cut.(2 times)When the wrong voltage connected for the power supply.When the outdoor PCB is faulty.When a fan speed of 75 rpm or lower continues for 30seconds or longer.(3 times)When it is judged that the power transistor wasdamaged at the time the compressor started.When refrigeration cycle system protective controloperates.(3 times)When there is a current safe stop during operation.When the current is 1A or less at the time thecompressor started.When the power supply voltage drops during operation.When the compressor command speed is 1ower than 32rps for 60 minutes.After the compressor starts, when the compressor stopsdue to rotor lock.(2 times)When 10 seconds passes after the power is turned onwithout communications signals from the indoor oroutdoor unit being detected correctly.When 7 minute 35 seconds passes withoutcommunications signals from either the outdoor unit orthe indoor unit being detected correctly.When the indoor unit's fan motor is detected to be runningat 300 rpm or lower speed with the fan motor in the ONcondition while the air conditioner is running.When a temperature of –28°C or lower is sensedcontinuously for 40 minutes during heating operation.(the compressor stops).Anti-condensation prevention control is operating.When the anti-frost control operates and the compressorstops during cooling operation.When high pressure control operates during heatingoperation and the compressor stops.- 58 -Error content Cause Occurrence conditionsPower supply is faulty.Power supply cables and signal lines are improperly wired.Indoor or outdoor PCB are faulty.Cooling overload operation.Outdoor unit fan speed drops.Outdoor heat exchanger sensor is short circuit.Refrigerant is insufficient.Discharge pipe sensor is faulty.Service valve is closed.Outdoor heat exchanger sensor wire isdisconnected.Connector connections are poor.Outdoor PCB is faulty.Outdoor air temperature sensor wire isdisconnected.Connector connections are poor.Outdoor PCB is faulty.Discharge pipe sensor wire isdisconnected.Connector connections are poor.Outdoor PCB is faulty.Compressor lock.Compressor wiring short circuit.Compressor output is open phase.Outdoor PCB is faulty.Service valve is closed.Electronic expansion valve is faulty.Compressor is faulty.Defective active filter .Outdoor fan motor is faulty.Connector connections are poor.Outdoor PCB is faulty.Outdoor PCB is faulty.Power transistor is damaged.Service valve is closed.Refrigerant is insufficient.Refrigerant is overcharge.Compressor lock.Overload operation.Compressor wiring is disconnected.Power transistor is damaged.Power supply construction is defective.Outdoor PCB is faulty.Compressor is faulty.Compressor is faulty.Compressor output is open phase.Electronic expansion valve is faulty.Overload operation.Outdoor PCB is faulty.Connection lines are faulty.Indoor or outdoor PCB are faulty.Indoor or outdoor PCB are faulty.Noise is causing faulty operation.Indoor fan motor is faulty.Connector connections are poor.Indoor PCB is faulty.Indoor heat exchanger sensor wire isdisconnected.Connector connections are poor.High humidity condition.Humidity sensor is faulty.Indoor unit fan speed drops.Indoor heat exchanger sensor is broken wire.Heating overload operation.Indoor unit fan speed drops.Indoor heat exchanger sensor is short circuit.

- - '09•SRK-DB-087D'11 • SRK-T-105 (d) Remote controller information tables Display pattern whenDisplay pattern whenin service mode Operation switchingin service modeFan speedswitching whenwhen there is anRUN lightthere is anabnormal stopTIMER lightabnormal stop(Operation switching)(Fan speed switching)0AUTO0AUTO1DRY2HI2COOL3MED3FAN4LO4HEAT6HI POWER7ECONORemote controller setting Operation switchingFan speed switching1.5 sec.RUN lightON(10’s digit)OFF0.5 sec.0.5 sec.ONTIMER light(1’s digit)OFF11-second interval59

- - '09•SRK-DB-087D'11 • SRK-T-105(e) Room temperature sensor, indoor heat exchanger sensor, outdoor air temperature sensor, outdoor heatexchanger sensor tableUnits: °CTIMER light(1’s digit)RUN light(10’s digit)0 1 2 3 4 5 6 7 8 9Buzzer soundYes(sounds for 0.1 second)No(does not sound)65432100123456789-60-50-40-30-20-100102030405060708090-61-51-41-31-21-11-11112131415161718191-62-52-42-32-22-12-22122232425262728292-63-53-43-33-23-13-33132333435363738393-64-54-44-34-24-14-44142434445464748494-55-45-35-25-15-55152535455565758595-56-46-36-26-16-66162636465666768696-57-47-37-27-17-77172737475767778797-58-48-38-28-18-88182838485868788898-59-49-39-29-19-99192939495969798999Sensor nameSensor value displayed when the error code is normalRoom temperature sensorIndoor heat exchanger sensorOutdoor air temperature sensorOutdoor heat exchanger sensor-64ºC-64ºC-64ºC-64ºC0.1 sec.ONIf the temperature is < 0, the buzzer sounds.Buzzer soundIf the temperature is0, the buzzer does not sound.OFF1.5 sec.RUN lightON(10’s digit)OFF0.5 sec.0.5 sec.ONTIMER light(1’s digit)OFF11-second interval60

- 61 - '09•SRK-DB-087D'11 • SRK-T-105(f) Discharge pipe sensor tableUnits: °CTIMER light(1’s digit)RUN light(10’s digit)0 1 2 3 4 5 6 7 8 9Buzzer sound3-60 -62 -64Yes2-40 -42 -44 -46 -48 -50 -52 -54 -56 -58(sounds for 0.1 second)1-20 -22 -24 -26 -28 -30 -32 -34 -36 -380-2 -4 -6 -8 -10 -12 -14 -16 -1800 2 4 6 8 10 12 14 16 18120 22 24 26 28 30 32 34 36 38240 42 44 46 48 50 52 54 56 58No360 62 64 66 68 70 72 74 76 78(does not sound)480 82 84 86 88 90 92 94 96 985100 102 104 106 108 110 112 114 116 1186120 122 124 126 128 130 132 134 136 1387140 142 144 146 148 150Sensor value displayed when the error code is normal-64ºC0.1 sec.ONIf the temperature is < 0, the buzzer sounds.Buzzer soundIf the temperature is0, the buzzer does not sound.OFF1.5 sec.ONRUN light(10’s digit)OFF0.5 sec.0.5 sec.ONTIMER light(1’s digit)OFF11-second interval

Service data record form'09•SRK-DB-087D'11 • SRK-T-10556)- 62 -

'09•SRK-DB-087D'11 • SRK-T-105(7) Inspection procedures corresponding to detail of troubleBroken sensor wire,Sensor errorconnector poor connectionDischarge pipe sensor temperature characteristicsSensor temperature characteristics (Roomtemp., indoor heat exchanger temp., outdoorheat exchanger temp., outdoor airtemp.)18030160251401202010015806010405200-10 0 10 20 30 40 50 60 700 20 40 60 80 100 120 135Temperature (˚C)Temperature (˚C)Defective fan motor, connector poorIndoor fan motor errorconnection, defective indoor PCB68 for the fan motor and indoor PCB check pro-Power supply resetReplace fan motor. (If theerror persists after replacingIs it normalized?the fan motor, replace theindoor PCB.)Malfunction by temporary noise- 63 -Resistance (k )Resistance (k )

Current cutCurrent safe stop'09•SRK-DB-087D'11 • SRK-T-10571 69Overload operation, compressorlock, overcharge- 64 -Compressor lock, Compressor wiring short circuit, Compressor output is open phase,Outdoor PCB is faulty, Service valve is closed, EEV is faulty, Compressor faulty.1.154Ω or more at 20ºC

Over heat of compressorError of signal transmission 63)'09•SRK-DB-087D'11 • SRK-T-105Gas shortage, defective dischargepipe sensorWiring error including power cable, defective indoor/outdoor PCB- 65 -

Trouble of outdoor unit(1)(2)(3)Outdoor fan motor errorPower supply resetIs it normalized?Malfunction by temporary noisethe fan motor and outdoorourdoor PCBoutdoor'09•SRK-DB-087D'11 • SRK-T-105Notes (1)71(2)69(3) Check coil resistance, see page 64.Defective fan motor, connector poorconnection, defective outdoor PCBReplace outdoor fan motorSee pages 71 for the fan motor and outdoor PCB check pro-After making sure the fan motor and outdoor PCB are nor-- 66 -Insufficient refregerant amount, Faulty power transistor, Broken compressor wireService valve close, Defective EEV, Defective outdoor PCBReplace fan motor. (If theerror persists after replacingthe fan motor, replace theoutdoor PCB.)

Indoor electrical componentsare normal.(b) Indoor unit fan motor check procedure

Heat exchangersensorOurdoor airtemperature sensorCoolingHeatingCoolingHeatingDefrosting is performed for 10 minutes at approx. '11 45 (models • SRK-T-10550, 60 : 35) minutes.Discharge pipesensorAll modes(9) Checking the indoor electrical equipment(a) Indoor PCB check procedureIs there voltage between terminal NOInspect power sourceblocks and ? (AC 220/230/240for outdoor unit.V)YESNOIs the fuse burnt out? (3.15 A)Replace fuse.YESIs the voltage between terminalblocks and oscillating betweenNOReplace indoor PCB.DC 0 and 20V?YESIndoor electrical componentsare normal.(b) Indoor unit fan motor check procedure1) Indoor PCB output check DC several V(–)(4~6 V)GNDDC 308~336VMeasuring Resistance whenDC15Vpoint normalCNUIndoor PCB FMI2) Fan motor resistance checkMeasuring point Resistance when normal BlueYellowWhiteBlackRedDefrosting is performed for 10 minutes at approx. 45 (models 50, 60 : 35) minutes.

'09•SRK-DB-087D'11 • SRK-T-105(C) Power transistor inspection procedure[Use a tester with a needle indicator for the inspection. (Do not use a digital tester. Check in the AC 300 volt range.)](1) If there is a self-diagnosis display, inspect the compressor system (burns, wiring mistakes, etc.) If no problems are found, check theoutput of the power transistor.(2) Output inspection procedureDisconnect the terminals for the compresseor.If an output such as the one shown in the figure on the below can be measured, the power transistor and the circuit board for theoutdoor unit are normal.(Example)RUN light : ONOutput voltageTIMER light: 2 time flash(ACV)08~10 sec. 1 sec. 3 min. 1 sec. 3 min. 1 sec.Operation SW ONMeasure in this section(10) How to make sure of wireless remote controller- 69 -

'09•SRK-DB-087D(11) Outdoor unit inspection points20ZJX-S, 25ZJX-S, 35ZJX-S61.71- 70 - '11 • SRK-T-10561.7153.63

11. OPTIONAL PARTS'11 • SRK-T-105PJA012D729A AConnect the remote contterminal block.Read together with indoor unit's installation manual.Connect the terminal of rwith the terminal of indooWARNING(X and Y are no polarity)Wiring route is as shownFasten the wiring to the terminal securely and hold the cable securely so as not to apply unexpected stress on thedepending on the pullingterminal.Loose connection or hold will cause abnormal heat generation or fire.Make sure the power supply is turned off when electric wiring work.The wiring inside the remOtherwise, electric shock, malfunction and improper running may occur.The sheath should be peCAUTIONPulling out from upperDO NOT install the remote controller at the following places in order to avoid malfunction.X wiring : 215mm(1) Places exposed to direct sunlight(4) Hot surface or cold surface enough to generate condensationY wiring : 195mm(2) Places near heat devices(5) Places exposed to oil mist or steam directly(3) High humidity places(6) Uneven surfaceInstall the upper case asthe screws.DO NOT leave the remote controller without the upper case.In case of exposing cordIn case the upper cace needs to be detached, protect the remote controller with a packaging box or bag inInstallation and wiring of reorder to keep it away from water and dust.Wiring of remote controllMaximum prolongation oAccessories Remote controller, wood screw (ø3.5 16) 2 piecesIf the prolongation is ovePrepare on site Remote controller cord (2 cores) the insulated thickness in 1mm or more.But, wiring in the remote[In case of embedding cord] Erectrical box, M4 screw (2 pieces)of the case according to[In case of exposing cord] Cord clamp (if needed)connecting section. Be cInstallation procedure100 - 200m.....................Under 300m...................Open the cover of remote controller , and remove the screw under theUnder 400m...................buttons without fail.Under 500m...................Remove the upper case of remote controller.ScrewMaster/ slave setting whenInsert a flat-blade screwdriver into the dented part of the upper partA maximum of two remote coof the remote controller, and wrench slightly.[In case of embedding cord]Indoor unitsEmbed the erectrical box and remote controller cord beforehand.Controller cordRemErectrical box(Prepare on site)Remote controller RemoteSW1 "Master"SW1Prepare two M4 screws (recommended length is 12-16mm) on site, and install the lower case to erectrical box.Choose either of the following two positions in fixing it with screws.Upper partUpper partSet SW1 to "Slave" for theNote: The setting "Remote coTighten the screws aftercutting off the thin part ofcontroller in the positionLower caseLower casescrew mounting part.The air conditioner opeWiring ouletLower partLower partThe indication when powerWiring ouletWhen power source is turnedcommunication between the rConnect the remote controller cord to the terminal block.Master remote controller :Connect the terminal of remote controller (X,Y) with the terminal ofM4 screw 2 (Prepare on site)Slave remote controller : "indoor unit (X,Y). (X and Y are no polarity)The thin partUpperAt the same time, a mark or aInstall the upper case as before so as not to catch up the remote controller cord,This is the software's adminisand tighten with the screws.Lower case[In case of exposing cord]LowerYou can pull out the remote controller cord from left upper part or center upper part.UpperWhen remote controller cannoCut off the upper thin part of remote controller lower case with a nipper or knife,appear.and grind burrs with a file etc.Lower caseCheck wiring of the indoor unInstall the lower case to the flat wall with attached two wooden screws.LowerInstallation manual for wired remote controller11.1 Instullation of wired remote controller (RC-E4)

te controllerply unexpected stress on thetion.gh to generate condensationam directlykaging box or bag ins in 1mm or more.rew (2 pieces))roller cordScrewll the lower case to erectrical box.hten the screws afterting off the thin part ofew mounting part.cord,per part.nife,M4 screwThe thin partUpperErectrical box(Prepare on site)2 (Prepare on site)Lower caseLowerUpperLower caseLower'11 • SRK-T-105Connect the remote controller cord to theUpper SheathSheathUpperThe range of temperature settinterminal block.Connect the terminal of remote controller (X,Y)Upper caseUpper case When shipped, the range of set teBoardBoardwith the terminal of indoor unit (X,Y).Heating : 16~30˚C (55~86˚F(X and Y are no polarity)Except heating (cooling, fanWiring route is as shown in the right diagramUpper limit and lower limdepending on the pulling out direction.Lower WiringLower WiringUpper limit setting: valid duringIn case of pulling out from In case of pulling out fromupper leftupper centerLower limit setting: valid exceptThe wiring inside the remote controller case should be within 0.3mm 2 (recommended) to 0.5mm 2 .79˚F).The sheath should be peeled off inside the remote controller case.When you set upper and lowerThe peeling-off length of each wire is as below.1. When TEMP RANGE SETPulling out from upper left Pulling out from upper centerIf upper limit value is setX wiring : 215mm X wiring : 170mmThe peeling-off lengthDuring heating, you cannotY wiring : 195mm Y wiring : 190mmof sheathIf lower limit value is setInstall the upper case as before so as not to catch up the remote controller cord, and tighten withDuring operation mode excethe screws.In case of exposing cord, fix the cord on the wall with cord clamp so as not to slack.2. When TEMP RANGE SEIf upper limit value is setInstallation and wiring of remote controllerDuring heating, even if the vWiring of remote controller should use 0.3mm 2 2 core wires or cables. (on-site configuration)But, the indication is the samMaximum prolongation of remote controller wiring is 600 m.If lower limit value is setIf the prolongation is over 100m, change to the size below.During except heating, evenBut, wiring in the remote controller case should be under 0.5mm 2 . Change the wire size outsideof the case according to wire connecting. Waterproof treatment is necessary at the wireBut, the indication is the samconnecting section. Be careful about contact failure.How to set upper and lo100 - 200m.........................0.5mm 2 2 cores1. Stop the air-conditioner, anUnder 300m.......................0.75mm 2 2 coresseconds .Under 400m.......................1.25mm 2 2 coresThe indication changes to "Under 600 500m.......................2.0mm 2 2 cores2. Press button once, andMaster/ slave setting when more than one remote controllers are used3. Press (SET) button4. Select "UPPER LIMIT "A maximum of two remote controllers can be connected to one indoor unit (or one group of indoor units.) 5. Press (SET) buttonIndoor units6. When "UPPER LIMIT "Switch Setting ContentsIndication: " SEM Master remote controllerSW1Select the upper limit vaS Slave remote controller(blinking)Remote controller cord (no polarity)Press (SET) buttUpperAfter the fixed upper limMaster7. When "LOWER LIMIT "Remote controller Remote controllerSW1 "Master"SW1 "Slave"SlaveBoardIndication: " SESelect the lower limit vaLower(blinking)Set SW1 to "Slave" for the slave remote controller. It was factory set to "Master" for shipment.Press (SET) buttNote: The setting "Remote controller thermistor enabled" is only selectable with the master remoteAfter the fixed lower limcontroller in the position where you want to check room temperature.8. Press ON/OFF button to fThe air conditioner operation follows the last operation of the remote controller regardless of themaster/ slave setting of it.The indication when power source is suppliedWhen power source is turned on, the following is displayed on the remote controller until thecommunication between the remote controller and indoor unit settled.Master remote controller : " "It is possible to finish by prSlave remote controller : " "ON/OFF button on the waAt the same time, a mark or a number will be displayed for two seconds first.unfinished change of settinThis is the software's administration number of the remote controller, not an error cord.unavailable.The left mark is only an(RESET) button, you returexample. Other marks mayappear.previous screen.When remote controller cannot communicate with the indoor unit for half an hour, the below indication willappear.Check wiring of the indoor unit and the outdoor unit etc.

UpperIn case of pulling out fromupper centermmended) to 0.5mm 2 .he peeling-off lengthof sheathcord, and tighten withto slack.n-site configuration)ne group of indoor units.)ontrollerntrollerller until ther cord.BoardLowerWiringthe wire size outsidery at the wireBoardUpperLowerSheathUpper caseMaster" for shipment.the master remoteroller regardless of ther, the below indication will'11 • SRK-T-105PJA012D729AThe range of temperature settingWhen shipped, the range of set temperature differs depending on the operation mode as below.Heating : 16~30˚C (55~86˚F)Except heating (cooling, fan, dry, automatic) : 18~30˚C (62~86˚F)Upper limit and lower limit of set temperature can be changed with remote controller.Upper limit setting: valid during heating operation. Possible to set in the range of 20 to 30˚C (68 to 86˚F).Lower limit setting: valid except heating (automatic, cooling, fan, dry) Possible to set in the range of 18 to 26˚C (62 to79˚F).When you set upper and lower limit by this function, control as below.1. When TEMP RANGE SET, remote controller function of function setting mode is "INDN CHANGE" (factory setting),If upper limit value is setDuring heating, you cannot set the value exceeding the upper limit.If lower limit value is setDuring operation mode except heating, you cannot set the value below the lower limit.2. When TEMP RANGE SET, remote controller function of function setting mode is "NO INDN CHANGE"If upper limit value is setDuring heating, even if the value exceeding the upper limit is set, upper limit value will be sent to the indoor unit.But, the indication is the same as the temperature set.If lower limit value is setDuring except heating, even if the value lower than the lower limit is set, lower limit value will be sent to the indoor unit.But, the indication is the same as the temperature set.How to set upper and lower limit value1. Stop the air-conditioner, and press (SET) and (MODE) button at the same time for over threeseconds .The indication changes to "FUNCTION SET ".2. Press button once, and change to the "TEMP RANGE " indication.3. Press (SET) button, and enter the temperature range setting mode.4. Select "UPPER LIMIT " or "LOWER LIMIT " by using button.5. Press (SET) button to fix.6. When "UPPER LIMIT " is selected (valid during heating)Indication: " SET UP" "UPPER 30˚C "Select the upper limit value with temperature setting button . Indication example: "UPPER 26˚C "(blinking)Press (SET) button to fix. Indication example: "UPPER 26˚C" (Displayed for two seconds)After the fixed upper limit value displayed for two seconds, the indication will return to "UPPER LIMIT ".7. When "LOWER LIMIT " is selected (valid during cooling, dry, fan, automatic)Indication: " SET UP" "LOWER 18˚C "Select the lower limit value with temperature setting button . Indication example: "LOWER 24˚C "(blinking)Press (SET) button to fix. Indication for example: "LOWER 24˚C" (Displayed for two seconds)After the fixed lower limit value displayed for two seconds, the indication will return to "LOWER LIMIT ".8. Press ON/OFF button to finish.It is possible to finish by pressingON/OFF button on the way, butunfinished change of setting isunavailable.During setting, if you press(RESET) button, you return to theprevious screen.Previous button

The functional settingThe initial function setting for typical using is performed automatically by the indoor unit connected, when remotecontroller and indoor unit are connected.As long as they are used in a typical manner, there wiil be no need to change the initial settings.If you would like to change the initial setting marked “ ”, set your desired setting as for the selected item.The procedure of functional setting is shown as the following diagram.[Flow of function setting]Start : Stop air-conditioner and press “ ” (SET) and“ ” (MODE) buttons at the same time for over three seconds.Finalize : Press “ ” (SET) button.Reset : Press “ ” (RESET) button.Select : Press button.Consult the technical data etc. for each control detailsEnd : Press ON/OFF button.It is possible to finish above setting on the way,and unfinished change of setting is unavailable.Stop air-conditioner and press“ ” : Initial settings(SET) + (MODE) buttons“ ” : Automatic criterionat the same time for over three seconds.01020304050607080910111213141516171819Note (1)(Remote controller function)FunctionsettingThe mark cannot use SRK series.When you use at 50Hz areaWhen you use at 60Hz areaAutomatical operation is impossibleTemperature setting button is not workingMode button is not workingOn/Off button is not workingFan speed button is not workingLouver button is not workingTimer button is not working'11 • SRK-T-105Record and keep thesetting" accordingly.ON/OFF button(finished)- 75 -Remote thermistor is not working.Remote thermistor is working.Remote thermistor is working, and to be set for producing +3.0˚C increase in temperature.Remote thermistor is working, and to be set for producing +2.0˚C increase in temperature.Remote thermistor is working, and to be set for producing +1.0˚C increase in temperature.Remote thermistor is working, and to be set for producing -1.0˚C increase in temperature.Remote thermistor is working, and to be set for producing -2.0˚C increase in temperature.Remote thermistor is working, and to be set for producing -3.0˚C increase in temperature.In case of Single split series, by connecting ventilation device to CNT of theindoor printed circuit board (in case of VRF series, by connecting it to CND of theindoor printed circuit board), the operation of ventilation device is linked with theoperation of indoor unit.In case of Single split series, by connecting ventilation device to CNT of the indoor printedcircuit board (in case of VRF series, by connecting it to CND of the indoor printed circuitboard), you can operate /stop the ventilation device independently by (VENT) button.If you change the range of set temperature, the indication of set temperaturewill vary following the control.If you change the range of set temperature, the indication of set temperaturewill not vary following the control, and keep the set temperature.Airflow of fan becomes of - - or the four speed of - - - .Airflow of fan becomes of - .Airflow of fan becomes of - .Airflow of fan is fixed at one speed.If you change the remote controller function "14 ",you must change the indoor function "04You can select the louver stop position in the four.The louver can stop at any position.If you input signal into CNT of the indoor printed circuit board from external, theindoor unit will be operated independently according to the input from external.If you input into CNT of the indoor printed circuit board from external, all units whichconnect to the same remote controller are operated according to the input from external.In normal working indication, indoor unit temperature is indicated instead of airflow.(Only the master remote controller can be indicated.)Heating preparation indication should not be indicated.Temperature indication is by degree CTemperature indication is by degree F

(Indoor unit function)Note 1: The initial setting marked “Function No. ItemRemote controllerfunction02Remote controllerfunction06Remote controllerfunction07Remote controllerfunction13Remote controllerfunction15'11 • SRK-T-105” is decided by connected indoor and outdoor unit, and is automatically defined as following table.DefaultModel"Auto-RUN" mode selectable indoor unit.Indoor unit without "Auto-RUN" modeIndoor unit with two or three step of air flow settingIndoor unit with only one of air flow settingIndoor unit with automatically swing louverIndoor unit without automatically swing louverIndoor unit with three step of air flow settingIndoor unit with two step of air flow settingIndoor unit with only one of air flow settingHeat pump unitExclusive cooling unitNote2: Fan setting of "HIGH SPEED"Indoor unit air flow settingFan tap- - -- ---FAN STANDARD PHi - Hi - Me - Lo Hi - Me - Lo Hi - Lo Hi - MeSPEEDSET HIGHSPEED1, 2PHi - PHi - Hi - Me PHi - Hi - Me PHi - Me PHi - HiInitial function setting of some indoor unit is "HIGH SPEED".4 speed is not able to be set with wireless remote controller.The filter sign is indicated after running for 180 hours.The filter sign is indicated after running for 600 hours.The filter sign is indicated after running for 1000 hours.The filter sign is indicated after running for 1000 hours, then the indoor unit will be stopped bycompulsion after 24 hours.If you change the indoor function "04 ",you must change the remote controller function "14" accordingly.You can select the louver stop position in the four.The louver can stop at any position.Permission/prohibition control of operation will be valid.To be reset for producing +3.0˚C increase in temperature during heating.To be reset for producing +2.0˚C increase in temperature during heating.To be reset for producing +1.0˚C increase in temperature during heating.To be reset producing +2.0˚C increase in return air temperature of indoor unit.To be reset producing +1.5˚C increase in return air temperature of indoor unit.To be reset producing +1.0˚C increase in return air temperature of indoor unit.To be reset producing -1.0˚C increase in return air temperature of indoor unit.To be reset producing -1.5˚C increase in return air temperature of indoor unit.To be reset producing -2.0˚C increase in return air temperature of indoor unit.When heating thermostat is OFF, fan speed is operated intermittently.When heating thermostat is OFF, the fan is stopped.When the remote thermistor is working, "FAN OFF" is set automatically.Do not set "FAN OFF" when the indoor unit's thermistor is working.Change of indoor heat exchanger temperature to start frost prevention control.Working only with the Single split series.To control frost prevention, the indoor fan tap is raised.Drain pump is run during cooling and dry.Drain pump is run during cooling, dry and heating.Drain pump is run during cooling, dry, heating and fan.Drain pump is run during cooling, dry and fan.After cooling is stopped, the fan does not perform extra operation.After cooling is stopped, the fan perform extra operation for half an hour.After cooling is stopped, the fan perform extra operation for an hour.After cooling is stopped, the fan perform extra operation for six hours.After heating is stopped or heating thermostat is OFF, the fan does not perform extra operation.After heating is stopped or heating thermostat is OFF,the fan perform extra operation for half an hour.After heating is stopped or heating thermostat is OFF,the fan perform extra operation for two hours.After heating is stopped or heating thermostat is OFF, the fan perform extra operation for six hours.Connected “OA Processing” type indoor unit, and is automatically defined.- 76 -Note 3: As for plural indoor unit, set indoor functions to each master and slave indoor unit.But only master indoor unit is received the setting change of indoor unit function “05 EXTERNAL INPUT” and “06 PERMISSION /PROHIBISHION”.Indoor unit No. are indicated only whenplural indoor units are connected.Function02setting030405060708091011121314151617With the VRF series, it is used to stop all indoor units connected with the same outdoor unit immediately.When stop signal is inputed from remote on-off terminal "CNT-6", all indoor units are stopped immediately.When heating thermostat is OFF, to be operated with low fan speed. (or with ultra low fan speed in case of some models)When heating thermostat is OFF, to be operated with set fan speed.During heating is stopped or heating thermostat is OFF, the fan perform intermittent operation for five minuteswith low fan speed after twenty minutes' OFF.During heating is stopped or heating thermostat is OFF, the fan perform intermittent operation for five minuteswith low fan speed after five minutes' OFF.

t.defined as following table.low settingngverlouverttingngngPUT” and “06 PERMISSION /ir flow setting--e - Loi - Meindoor unit will be stopped by" accordingly.with the same outdoor unit immediately., all indoor units are stopped immediately.heating.heating.heating.of indoor unit.of indoor unit.of indoor unit.f indoor unit.f indoor unit.f indoor unit.tently.atically.g.ention control.es not perform extra operation.rform extra operation for half an hour.rform extra operation for an hour.rform extra operation for six hours.es not perform extra operation.rform extra operation for half an hour.rform extra operation for two hours.rform extra operation for six hours.perform intermittent operation for five minutesperform intermittent operation for five minutesly defined.Hi - LoUH - Me-Hi - MeUH - HiHow to set function1. Stop air-conditioner and press (SET) (MODE)buttons at the same time for over three seconds, and the"FUNCTION SET " will be displayed.2.3. Make sure which do you want to set, " FUNCTION "(remote controller function) or "I/U FUNCTION " (indoorunit function).4.5.6.7.Press(SET) button.Press or button.Selecct " FUNCTION " (remote controller function) or "I/UFUNCTION " (indoor unit function).Press(SET) button.On the occasion of remote controller function selection"DATA LOADING" (Indication with blinking)Display is changed to "01 GRILLE'11 • SRK-T-105PJA012D729AOperation messageFunction description: ,setting description:Function No.Fixing button7 Finishing button2 Starting button16 Indoor unit selection button Previous screen buttonOn the occasion of indoor unit function selection"DATA LOADING" (Blinking for 2 to 23 seconds to read the data)Indication is changed to "02 FAN SPEED SET".Go to .[Note](1) If plural indoor units are connected to a remote controller,the indication is "I/U 000" (blinking) The lowest number ofthe indoor unit connected is indicated.(2) Press or button.Select the number of the indoor unit you are to setIf you select "ALL UNIT ", you can set the same setting withall unites.(3) Press (SET) button.Press or button."No. and function" are indicated by turns on the indoor unit functiontable, then you can select from them.(For example)Function No.FunctionPress (SET) button.The current setting of selected function is indicated.(For example) "STANDARD" If "02 FAN SPEED SET" isselected.SettingPress or button.Select the setting.Press (SET) button."SET COMPLETE" will be indicated, and the setting will becompleted.Then after "No. and function" indication returns, set as the sameprocedure if you want to set continuously , and if to finish, go to 7.When plural indoor units are connected to a remote controller,press the AIRCON NO. button, which allows you to go back tothe indoor unit selection screen. (example "I/U 000 ")- 77 -It is possible to finish by pressing ON/OFF button on the way, but unfinished change of setting isunavailable.During setting, if you press (RESET) button, you return to the previous screen.Setting is memorized in the controller and it is saved independently of power failure.How to check the current settingWhen you select from "No. and funcion" and press set button by the previous operation, the "Setting" displayed first is the currentsetting.(But, if you select "ALL UNITSET".Press or button."No. and function"are indicated by turns on the remotecontroller function table, then you can select from them.(For example)Press (SET) button.The current setting of selected function is indicated.(for example) "AUTO RUN ON" If "02 AUTO RUN SET" isselectedPress or button.Select the setting.Press (SET)"SET COMPLETE" will be indicated, and the setting will becompleted.Then after "No. and function" indication returns, Set as thesame procedure if you want to set continuously ,and if tofinish, go to 7.Press ON/OFF button.Setting is finished.Function No.FunctionSetting", the setting of the lowest number indoor unit is displayed.)

11.2 Interface kit (SC-BIKN-E)'11 • SRK-T-105RKZ012A088 aSafety precautionsBefore use, please read these Safety Precautions thoroughlybefore installation.Accessories included in package●All the cautionary items mentioned below are important safety related items to be takeninto consideration, so be sure to observe them at all times.Be sure to check all the accessories included in package.Incorrect installation could lead to serious consequences such as death, majorNo.Part nameQuantityWarninginjury or envirommental destruction.1 Indoor unit's connection cable (cable length: 1.8m) 1 ●Symbols used in these precautions2 Wood screws (for mounting the interface: ø4x 25) 23 Tapping screws (for the cable clump and the interface mounting bracket) 3Always go along these instruction.4 Interface mounting bracket1●After completed installation, carry out trial operation to confirm no anomaly, and ask the5 Cable clamp (for the indoor unit's connection cable) 1 user to keep this installation manual in a good place for future reference.Warnings●Installation must be carried out by a qualified installer.If you install it by yourself, it may cause an electric shock, fire and personal injury , as a result of a system malfunction.●Install it in full accordance with the instruction manual.Incorrect installation may cause an electric shock, fire and personal injury.●Electrical work must be carried out by a qualified electrician in accordance with the technical standard for electrical equipment, theindoor wiring standard and this instruction manual.Incorrect installation may cause an electric shock, fire and personal injury.●Use the specific cables for wiring. And connect all the cables to terminals or connectors securely and clamp them with cable clamps inorder for external forces not to be transmitted to the terminals directly.Incomplete connection may cause malfunction, and lead to heat generation and fire.●Use the original accessories and specified components for installation.If the parts other than those prescribed by us are used, it may cause an electric shock, fire and sersonal injury.Connecting the indoor unit's connection cable to the interfaceWiring inlet(top or back)3 Fix the cable with the1Remove the upper case of the interface.cable clamp• Remove 2 screws from the interface casing before removal of upper casing.2Connect the indoor unit's2Connect the indoor unit's connection cable to the interface.connection cable• Connect the connector of the indoor unit connection cable to theconnector on the interface’s circuit board.3Fix the indoor unit's connection cable with the cable clamp.• Cable can be brought in from the top or from the back.• Cut out the punch-outs for the connection cables running into the casing with cutter.4Connect the indoor unit's connection cable to the indoor control PCB.• Connect the indoor unit's connection cable to the indoor control PCB securely. 1Remove• Clamp the connection cable to the indoor control box securely with the cable clamp the upperprovided as an accessory.case• Regarding the cable connection to the indoor unit, refer to the instruction manual forindoor unit.Name of each part of the interfaceClamp for clamping indoorROM terminalunit's connection cableInterface boardDIP switch (SW2) : [Factory setting : all ON]Terminal for indoor unit'sDIP switch (SW3) : [Factory setting : all OFF]connection cableTerminal block for wiredremote controller*Rotary switch (SW1) for address settingCNT terminalTerminal block for super link E board (SC-ANDA-E)*Clamp for clamping the connectionClamp for clamping the connection cable forcable for wired remote controller*super link E board (SC-ANDA-E)**Either the connection cables of super link E board (SC-ANDA-E) or of wired remote controller is connectable.Switch SettingFunctionSwitch SettingFunctionSW2-1ON** CNT level inputON** External input (CNT input)SW2-3OFF CNT Pulse inputOFF Operation permission/prohibition (CNT input)SW2-2ON** Wired remote controller : ValidON** Heat pumpSW2-4OFF Wired remote controller : InvalidOFF Cooling only** Factory setting

'11 • SRK-T-105Installation of the interface・Install the interface within the range of the connection cable length(approximately 1.3m) from the indoor unit.・Be sure not to extend the connection cable on site. If the connectionWiring inletcable is extended, malfunction may occur.・Fix the interface on the wall, pillar or the like.DO NOT install the interface and wired remote controller at thefollowing places.○Places exposed to direct sunlight○Places near heating devices○High humidity places○Surfaces where are enough hot or cold to generate condensation○Places exposed to oil mist or steam directly○Uneven surfaceCut out the punch-outsfor the connection cablesrunning into the casingWiring inletMounting the interface directly on a wallwith cutter1Mount the lower casing of the interface on a flat surface with woodscrews provided as standard accessory.2Mount the upper casing.2Mount theupper casing1 Mount it on a wall or a pillarwith 2 of wood screwsRecessing the interface in the wallConnection cable1Recess the electrical box (locally procured) andconnection cables in the wall.2Mount the lower casing of the interface to theelectrical box with M4 screws (locally procured).3Mount the upper casing.1Recess the electrical2Mount it to the electrical boxbox and connection cableswith 2 of M4 screwsElectrical box(procured locally)(procured locally) 3Mount the upper casingMounting the interface with the mounting bracket1Mount the mounting bracket to the interface with tappingscrews provided as standard accessory.2Mount the mounting bracket on wall or the like with woodscrews provided as standard accessory.3Mount the mounting bracket to a wall surface, etc.using the wood screws provided.2Mount the mounting3Mount the bracket onbracket on the interfacea wall or a pillar withwith 2 of tapping screws2 of wood screwsInstallation check items□ Are the connection cables connected securely to the terminal blocks and connectors?□ Are the thickness and length of the connection cables conformed with the standard?- 79 -

'11 • SRK-T-105Functions of CNT connectorIt is available to operate the air conditioning unit and to monitor the operation status with the external control unit (remote display)by sending the input/output signal through CNT connector on the indoor control PCB.0.3 mm 2 (Keep the distance between the relay and theCNT terminal within 2 m.)1Connect a external remote control unit (locally procured)to CNT terminal.1Common2In case of the pulse input, switch OFF the DIP switch2 XR1Output 1XR1SW2-1 on the interface PCB.3 XR2Output 2 AC 220~240VXR2CNT3When setting operation permission/prohibition mode, connector 4 XR3Output 3XR3switch OFF the DIP switch SW2-3 on the interface PCB.5 XR4Output 4XR46XR5 Input Power supplyXR5DC 12/24V orAC 220~240V●XR1~4 are for the DC 12V relayInput/Output signalOutput FunctionContent●XR5Relay ON/OFFis a DC 12/24V or AC 220~240V relayOutput 1 Operation output XR1 ON During air-conditioner operation ●CNT connector (local) maker, modelOutput 2 Heating outputXR2 ON During heating operationOutput 3 Compressor operation outputConnector Molex 5264-06XR3 ON During compressor runningOutput 4 Malfunction output XR4 ON During anomalous stopTerminals Molex 5263TSW2-1SW2-3Input/Air- Operation byFunctionInput signalDIP switchOutputSetting Setting Content Conditioner Remote Controller(SW2-3)Level/Pulse XR5OFF→ONONON*External inputON→OFFOFF AllowedON* Level input LevelOFF→ON Operation permission OFFInput ExternalOFFcontrolON→OFF Operation prohibition OFF Not allowedinputOFF→ONDIP switchON* Pulse OFF→ON External inputON→OFF Allowed(SW2-1)OFF Pulse inputOFF→ON Operation permission ONOFF LevelON→OFF Operation prohibition OFF Not allowed* Factory settingConnection of super link E boardRegarding the connection of super link E board, refer to the instruction manual of super link E board.For electrical work, power supply for all of units in the super link systemmust be turned OFF.1Switch ON the DIP switch SW2-2 (Factory setting: ON) on the interface PCB.DIP switchCaution:Wireless remote controller attached to the indoor unit can be used in parallel, after(SW2-2)connecting the wired remote controller. However, some of functions other thanthe basic functions such as RUN/STOP, Temperature Setting, etc. may not workproperly and may have a mismatch between the display and the actual behavior.2Wiring connection between the interface and the super link E board.Interface sideSuper link E boardNo. Names of recommended signal wires1 Shielded wireTerminalTerminalblock for YY2 Vinyl cabtyre round cordblock forSuper link3 Vinyl cabtyre round cableiterfaceE board XX4 Vinyl insulated wirevinyl sheathed cable for controlWithin 200 m 0.5 mm 2 2 coresWithin 300 m 0.75 mm 2 2 coresWithin 400 m 1.25 mm 2 2 coresWithin 600 m 2.0 mm 2 2 cores3Clamp the connection cables with cable clamps.- 80 -

'11 • SRK-T-105Connection of wired remote controllerRegarding the connection of wired remote controller, refer to the instruction manual of wired remote controller.1Switch ON the DIP switch SW2-2 (Factory setting : ON) on the interface PCB.Caution:Wireless remote controller attached to the indoor unit can be used in parallel, after connecting the wired remote controller. However,DIP suitch(SW2-2)some of functions other than the basic functions such as RUN/STOP, Temperature Setting, etc. may not work properly and may havea mismatch between the display and the actual behavior.2Wiring connection between the interface and the wired remote controller.Installation and wiring of wired remote controllerA Install the wired remote controller with reference to the attached instruction manual of wired remote controller.B 0.3mm 2 x 2-core cable should be used for the wiring of wired remote controller.C Maximum length of wiring is 600m.If the length of wiring exceeds 100m, change the size of cable as mentioned below.100m-200m: 0.5mm 2 x 2-core, 300m or less: 0.75mm 2 x 2-core, 400m or less: 1.25mm 2 x 2-core, 600m or less: 2.0mm 2 x 2-coreHowever, cable size connecting to the terminal of wired remote controller should not exceed 0.5mm2. Accordingly if the size of connectioncable exceeds 0.5mm 2 , be sure to downsize it to 0.5mm 2 at the nearest section of the wired remote controller and waterproof treatment shouldbe done at the connecting section in order to avoid contact failure.D Don't use the multi-core cable to avoid malfunction.E Keep the wiring of wired remote controller away from grounding (Don't touch it to any metal frame of building, etc.).F Connect the connection cables to the terminal blocks of the wired remote controller and the interface securely (no polarity).3Clamp the connection cables with cable clamps.Control of multiple units by a single wired remote controllerMultiple units (up to 16) can be controlled by a single wired remote controller.In this case, all units connected with a single wired remote controller will operateRotaryswitchunder the same mode and same setting temperature.1Connect all the interface with 2-core cables of wired remote controller line.2Set the address of indoor unit for remote controller communication fromInterface kit(1) Interface kit(2) Interface kit(16)"0" to "F" with the rotary switch SW1 on the interface PCB.Adress"0" Adress"1" Adress"F"3After turning the power ON, the address of indoor unit can be displayed bypressing AIR CON button on the wired remote controller.Remote controller line (no polarity)Make sure all indoor units connected are displayed in order by pressingRemote controlleror button.Switch setting contentsMaster/Slave setting wired when 2 of wired remote controller are usedMasterWired remote M remote controllercontroller: SW1 SSlaveMaximum two wired remote controller can be connected to one indoor unitInterface kitremote controllerRemote controller line(or one group of indoor units)(no polarity)1Set the DIP switch SW1 on the wired remote controller to "Slave" for the slaveRemote Remoteremote controller. (Factory setting : Master)controller controller"Master" "Slave"○ Caution : Remote controller sensor is invalid.●When using the wireless remote controller in parallel with the wired remote controller;Temperature setting range should be changed with the wired remote controller (The set temperature may not be displayed correctly on thewireless remote controller, unless change of temperature setting range is done.)Changing procedure of temperature setting range is as follows.How to set upper and lower limit of temperature sting range1. Stop the air-conditioner, and press (SET) and (MODE) button at the same time for3 seconds or more.The indication changes to"FUNCTION SET "2. Press button once, and change to the "TEMP RANGE " indication.6-23. Press (SET) button, and enter the temperature range setting mode.7-2TEMP RANGETEMPON/OFF4. Confirm that the "Upper limit " is shown on the display.5. Press (SET)button to fix.83•5•6-36. 1Indication: " SET UP" "UPPER 28℃ "7-3TIEMRSET FAN SPEED MODE2Select the upper limit value 30℃ with temperature setting button ."UPPER30℃ "GRILLRESET LOUVER VENTI(blinking)1AIR CON NO. CHECK TEST3Press (SET) button to fix. "UPPER 30℃" (Displayed for two seconds)After the fixed upper limit value displayed for two seconds, the indication will returmto"UPPER LIMIT ".2 Previous button7. Press button once, "LOWER LIMIT " is selected, press (SET) button to fix.1Indication: " SET UP" "LOWER 20℃ "•2Select the lower limit value 18℃ with temperature setting button ."LOWER18℃ "It is possible to quit in the middle by(blinking)pressing ON/OFF button, but the3Press (SET) button to fix. "LOWER 18℃" (Displayed for two seconds)change of setting is incompleted.After the fixed lower limit value displayed for two seconds, the indication will returm• During setting, if pressingto"LOWER LIMIT "(RESET) button, it returns to the8. Press ON/OFF button to finish.previous screen.Temperature setting rangeModeTemperature setting range Upper limit Lower limitHeating16-30℃Other than heating20-30℃ 16-26℃(Cooling, Fan, Dry, Auto)18-30℃- 81 -

11.3 Super link E board (SC-ADNA-E)FSL2NA-E, and SL3N-AE/BE to control- 82 - '11 • SRK-T-105

- 83 - '11 • SRK-T-105

INVERTER WALL MOUNTED TYPERESIDENTIAL AIR-CONDITIONERSAir-Conditioning & Refrigeration Systems Headquarters16-5, 2-chome, Kounan, Minato-ku, Tokyo, 108-8215, JapanFax : (03) 6716-5926Because of our policy of continuous improvement, we reserve the right to make changes in all specifications without notice.C Copyright MITSUBISHI HEAVY INDUSTRIES, LTD.