SERVICE MANUAL - Toshiba

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* Under 70 dBAModelMMY-MAP0804T8, MMY-MAP0804T8Z,MMY-MAP0804T8ZGMMY-MAP1004T8, MMY-MAP1004T8Z,MMY-MAP1004T8ZGMMY-MAP1204T8, MMY-MAP1204T8Z,MMY-MAP1204T8ZGMMY-MAP1404T8, MMY-MAP1404T8Z,MMY-MAP1404T8ZGMMY-MAP1604T8, MMY-MAP1604T8Z,MMY-MAP1604T8ZGSound power level (dBA)CoolingHeatingWeight (kg)77 — 24178 — 24182 — 24182 — 33083 — 330MMY-MAP0804T8-SG 77 — 241MMY-MAP1004T8-SG 78 — 241MMY-MAP1204T8-SG 82 — 241MMY-MAP1404T8-SG 82 — 330MMY-MAP1604T8-SG 83 — 33015
Carrying in the Outdoor UnitCAUTIONHandle the outdoor unit carefully, observing the following items.• When using a forklift or other machinery for loading/unloading in transportation, insert the prongs of the forkliftinto the rectangular holes for handling as shown below.• When lifting up the unit, insert a rope able to bear the unit’s weight into the rectangular holes for handling, andtie the unit from 4 sides.(Apply padding in positions where the rope comes into contact with the outdoor unit so that no damage is causedto the outer surface of the outdoor unit.)(There are reinforcing plates on the side surfaces, so the rope cannot be passed through.)GOOD NO GOOD NO GOODPlasterRopeRectangularholes forhandlingSidePlasterFront /BackNO GOODRectangularholes forliftingReinforcingplateGOODProngs of theforklift16
Page 1 and 2: FILE No. A10-005AIR CONDITIONER (MU
Page 3 and 4: 4-1. Normal Operation (COOL Mode /
Page 5 and 6: 9-4. Cooling-Season Outdoor Unit Ba
Page 7 and 8: Definition of Protective GearWhen t
Page 9 and 10: Precautions for SafetyThe manufactu
Page 11 and 12: Use specifiedparts.When any of the
Page 13 and 14: Only a qualified installer (*1) or
Page 15: SpecificationsModelMMY-MAP0804HT8-E
Page 19 and 20: Selection of Pipe SizeCoupling size
Page 21 and 22: Table 2Standard typeHigh Efficiency
Page 23 and 24: 4. Tools(1) Required Tools for R410
Page 25 and 26: Models: MMY-MAP1404 and MAP160424
Page 27 and 28: 1-2-2. Compact 4-way Cassette TypeM
Page 29 and 30: 1-2-4. 1-way Air Discharge Cassette
Page 31 and 32: 1-2-6. 2-way Air Discharge Cassette
Page 33 and 34: 1-2-8. Concealed Duct High Static P
Page 35 and 36: 1-2-9. Slim Duct TypeModels: MMD-AP
Page 37 and 38: 1-2-11.High Wall Type 2 seriesModel
Page 39 and 40: 1-2-13.Floor Standing Cabinet TypeM
Page 41 and 42: 1-2-15.Floor Standing TypeModels: M
Page 43 and 44: Models: MMD-AP0721HFE and MMD-AP096
Page 45 and 46: 2-2. Outdoor Unit (60Hz model: MMY-
Page 47 and 48: 2-4. Outdoor Inverter (60Hz model:
Page 49 and 50: 2-way Air Discharge Cassette TypeMo
Page 51 and 52: Concealed Duct High Static Pressure
Page 53 and 54: Floor Standing TypeModel MMF-AP 015
Page 55 and 56: 14, 16HPModel: MMY-MAP1404, MAP1604
Page 57 and 58: Outdoor Unit (14, 16HP)Model: MMY-M
Page 59 and 60: 2-8-2. Inverter P.C. board for comp
Page 61 and 62: 3 Refrigerant Piping Systematic Dra
Page 63 and 64: Explanation of Functional PartsFunc
Page 65 and 66: 4 Combined Refrigerant Piping Syste
Page 67 and 68:
4-3. Normal Operation (HEAT Mode)He
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4-5. Emergency Operation (Heating O
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5 Control Outline Indoor UnitContro
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NO. Item Specification outline Rema
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NO. Item Specification outline Rema
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Outdoor UnitItem Description of ope
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Item Description of operation, nume
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1 Cooling operation under low outsi
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Centralcontrolremotecontroller(opti
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6-1-2. When Wireless Remote Control
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Centralcontrolremotecontroller(opti
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XYDC5VPower supply circuitMain (sub
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6-2. Indoor Printed Circuit BoardMC
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MCC-1403 Power supplyPower supplytr
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6-4. Test Operation of Indoor Unit
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Function CODE No. (DN Code) Table (
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TypeDN code “10”Value Type Mode
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▼ Ventilating fan control from re
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6-7. Applied control for Outdoor Un
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(2) Indoor unit setup method for pr
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6-8-1. Power peak-cut Control (Stan
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6-8-3. Snowfall Fan ControlHeader o
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6-8-6. Operation Mode Selection Con
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6-8-8. Compressor Operation OutputO
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7 TEST OPERATION7-1. Procedure and
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(2) In the case that a central cont
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• Check the additional amount of
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7-4. Address SetupThis product requ
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(Example)Controlling 2 or more refr
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10 Set the central control address.
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Manual address setup from the remot
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To find an indoor unit’s position
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4 Push the TIME / buttons repeatedl
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2) Turn on dip switch 2 of SW30 on
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7-4-4. Check after Address Setup wh
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7-5-2. Operation from the indoor re
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Miswiring exampleFigureRemotecontro
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7-6-2. Cooling/Heating Test Operati
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(2) Test operationSTARTTest operati
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7-7. Service Support Function7-7-1.
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7-7-2. Function to Start/Stop (ON/O
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(2) Heating test operation function
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(4) Individual start/stop (ON/OFF)
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(2)Clearing error by using switches
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7-7-5. Pulse Motor Valve (PMV) Forc
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7-7-8. Fan Operation Check in Outdo
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7-7-10.Manual Adjustment Function o
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7-7-11.Monitor Function of Remote C
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8 TROUBLESHOOTING8-1. Overview(1) B
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(Error detected by main remote cont
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F12 - F12 ALTF15 - F15 ALTF16 - F16
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(Errors detected by IPDU featuring
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Using TCC-LINK central control remo
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Light block Check code Cause of fau
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8-4. Check Codes Displayed on Remot
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MainremotecontrollerCheck codeOutdo
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MainremotecontrollerP04P05P07P10Che
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Errors Detected by TCC-LINK Central
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8-5. Diagnosis procedure for each c
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Check code Check code name CauseChe
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Check code Check code nameCause[E18
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Check code Check code nameCause[E31
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Check code Check code nameCause[F15
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Check code Check code nameCause[H01
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(*3) Check for solenoid valve of al
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Check code Check code nameCause[L17
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Check code Check code nameCause[P04
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(C)Heating operationDoes heatingind
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(1)Display of System Information (D
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(3)Display of Outdoor Cycle Data (D
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(5)Display of Indoor Unit Informati
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8-8. Leakage/Clogging of Refrigerat
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List of Check Codes Generated upon
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8-9. Sensor CharacteristicsOutdoor
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Indoor TC1 sensor200150Resistance[k
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240Outdoor Unit▼ Ps sensor charac
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9-2. Compressor Backup Operation Se
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(6) Turn on the power supply to all
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(8) Set Bits 1 and 2 of SW30 on the
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10OUTDOOR UNIT REFRIGERANTRECOVERY
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[Setup of failed outdoor unit](13)W
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[Setup of outdoor units other than
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10-3.Work procedure after RepairWhe
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11-2.Replacement of Compressors•
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[When replacing normal as well as f
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11-3.Check Procedure to Search Caus
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Check items and procedures to follo
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No. Part to be replaced Work proced
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13P.C. BOARD EXCHANGE PROCEDURES In
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Procedure 1: Reading Setting Data f
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Procedure 3: Writing Setting Data i
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CODE No. list (Example)CODE No. (DN
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13-2-3.Interface board (MCC-1606) r
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(6) Set the dip switch (SW800) sett
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13-2-6.Noise Filter P.C. Board (MCC
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(7) Install the service P.C. boards
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040010033046050078045 046 078044 04
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SMMS-i OUTDOOR UNITMMY-MAP1404HT8(Z
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REFRIGERATION CIRCUIT DIAGRAMMMOTOR
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Ref.No.Part No.DescriptionMAP0804HT
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NSW08ONOFFSW10ONSW09ONSW07ONSW06ONB
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SMMS-i OUTDOOR UNITMMY-MAP0804T8(Z)
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032010026 027(SV41)046 050 078031 (
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Ref.No.Part No.DescriptionMAP0804T8
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NONOFFONONONON3 4211BLKWHIONONONONB
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040010033046050078045 046 078044 04
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SMMS-i OUTDOOR UNITMMY-MAP0804T8(Z)
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032010026 027(SV41)046 050 078031 (
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040010033046050078045 046 078044 04
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032010026 027(SV41)046 050 078046 0
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040010033046050078045 046 078044 04
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SMMS-i OUTDOOR UNITMMY-MAP1404T8-SG
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WARNINGS ON REFRIGERANT LEAKAGEChec
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SERVICE MANUAL - Toshiba

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