18. MULTI-TYPE(V MULTI) PACKAGED AIR-CONDITIONER Split ...

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V MULTITable of bypass factorFDT seriesItemAir flowModel208 type 258 type 308 type 408 type 508 typeHi 0.112 0.050 0.065 0.076 0.025Lo 0.073 0.030 0.030 0.050 0.013FDR seriesItemModel208 type 258 type 308 type 408 type 508 typeAir flowHi 0.035 0.035 0.039 0.085 0.035Lo 0.021 0.020 0.023 0.060 0.023(2) Correction of cooling and heating capacity in relation to air flow rate control (fan speed)Coefficient: 1.00 at High, 0.95 at Low(3) Correction of cooling and heating capacity in relation to one way length of refrigerant pipingIt is necessary to correct the cooling and heating capacity in relation to the one way equivalent piping length between the indoorand outdoor units.Equivalent piping length (1) m 5 10 15 20 25 30 35 40 45 50 55Heating 1.0 1.0 1.0 1.0 1.0 0.995 0.995 0.99 0.99 0.985 0.985CoolingFDC508 typeFDC808, 1008 type1.0 0.99 0.975 0.965 0.95 0.94 0.925 0.915 0.9 0.89 0.8751.0 0.99 0.98 0.97 0.96 0.95 0.94 0.93 0.92 0.91 0.9Note (1)Equivalent piping length can be obtained by calculating as follows.508 series [φ19.05 (3/4″)] : Equivalent piping length = Real piping length + (0.15 × Number of bends in piping)808 series [φ25.4 (1″)] : Equivalent piping length = Real piping length + (0.15 × Number of bends in piping)1008 series [φ28.58 (1 1/8″)] : Equivalent piping length = Real piping length + (0.20 × Number of bends in piping)[Equivalent piping length < Limitation length of piping + 5m](4) When the outdoor unit is located at a lower height than the indoor unit in cooling operation and when theoutdoor unit is located at a higher height than the indoor unit in heating operation, the following values should besubtracted from the values in the above table.Height difference between the indoor unit andoutdoor unit in the vertical height difference5m 10m 15m 20m 25m 30mAdjustment coefficient 0.01 0.02 0.03 0.04 0.05 0.06Piping length limitationsModelItemMax. one way piping lengthMax. vertical height differenceAll models50mOutdoor unit is higher 30mOutdoor unit is lower 15mNote (1)Values in the table indicate the one way piping length between the indoor and outdoor units.How to obtain the cooling and heating capacityExample : The net cooling capacity of the model FDC808HES3 with the air flow “High”, the piping length of 40m, the outdoor unitlocated 5m lower than the indoor unit, indoor wet-bulb temperature at 19.0 ˚C and outdoor dry-bulb temperature 35 ˚C isNet cooling capacity = 20000 × 1.00 × (0.93 - 0.01) × 1.0 = 18400 w706FDC808HES3Air flow“High”Length m.Height difference 5 mFactor by airtemperatures
V MULTI18.2.7 Characteristics of fan• External static pressure table How to interpret the blower characteristics tableUnit: Pa (mmAq)Example : Case of FDR308-ATypeDuct specs. 1 spot closing (1) Standard (2) Square duct (3)Air flow(m 3 /min)FDR208-AFDR258-AFDR308-AFDR408-AFDR508-A1418202834Highspeed (4)Highspeed (4)StandardStandardStandardHighspeed (4)— — 50(5) 85(8.5) 50(5) 90(9)30(3) 65(6.5) 45(4.5) 80(8) 50(5) 85(8.5)25(2.5)40(4)60(6)70(7)45(4.5)50(5)80(8)80(8)50(5)50(5)85(8.5)85(8.5)40(4) 70(7) 50(5) 80(8) 55(5.5) 85(8.5)Notes (1) 1 spot closing: Round duct flange at center is removed and shieldwith a decorative panel (option).(2) Standard: ø200 ducts are installed at all blowout holes.(3) Square duct: All round ducts are removed and replaced with specialsquare duct flanges (option).(4) When operating at a high speed, invert the connection of whiteand red connectors on the flank of control box.Static pressure Pa (mmAq)40(4)20(2)0(0)Standard •Low2-spots blowerinternal resistance[Standard]3-spot blowerinternal resistanceSquare duct blower internal resistance–2(–2)Internal resistance without suction panel14Internal resistance without filter• High17 20 22Air flow (m 3 /min)1 2-spot blowout.....................Internal resistance increases morethan the standard 3-spot blowout.Approx. 14 (1.4) Pa (mmAq) at17m 3 /min.2 Square duct blowout...........Internal resistance decreasesmore than the standard roundduct (ø200 3-spot). 3 (0.3) Pa(mmAq) at 17 m 3 /nin. (Externalstatic pressure increases inreverse.).3 Decorative panel...................When the decorative panel is notused with the ceiling return type,the part of internal resistancerelated to the panel decrease. 3(0.3) Pa (mmAq) at 17mm 3 /min.ModelFDR208-AModelFDR258-A120(12)120(12)Static pressure Pa (mmAq)100(10)80(8)60(6)40(4)20(2)High speed •LowHigh speed •Upper limitStandard •Upper limitStandard • LowHigh speed • HighHigh speed •Lower limitStandard • HighStatic pressure Pa (mmAq)100(10)80(8)60(6)40(4)20(2)High speed • Upper limitStandard •Upper limitHigh speed •LowStandard • LowHigh speed • HighStandard • HighHigh speed • Lower limit0(0)0(0)2-spot blower internal resistance[Standard] 2-spot blower internal resistance–20(–2)10LowerlimitSquare duct blower internal resistanceInternal resistance without suction panelInternal resistance without filter12 14 15.5UpperAir flow (m 3 /min) limit[Standard]–20(–2)13Lowerlimit3-spot blower internal resistanceSquare duct blower internal resistanceInternal resistance without suction panelInternal resistance without filter14 16 18 20UpperAir flow (m 3 /min) limit707
Page 1 and 2: V MULTI18. MULTI-TYPE(V MULTI)PACKA
Page 3 and 4: V MULTI18.1 GENERAL INFORMATION18.1
Page 5 and 6: V MULTI18.2 SELECTION DATA18.2.1 Sp
Page 8 and 9: V MULTIModels FDR308-A, 408-AItemDe
Page 12 and 13: V MULTIOperation characteristics of
Page 14 and 15: V MULTI18.2.3 Exterior dimensions(1
Page 16 and 17: V MULTIModels FDT408-A, 508-AUnit :
Page 18 and 19: V MULTIModelFDR208-ACanvas Panel (M
Page 20 and 21: V MULTIModels FDR258-A, 308-A696
Page 22 and 23: V MULTIModels FDR408-A, 508-ACanvas
Page 24 and 25: V MULTI(3) Outdoor unitModel FDC508
Page 26 and 27: V MULTI18.2.4 Exterior appearance(1
Page 28 and 29: V MULTI(2) Triple typeModels FDC808
Page 32 and 33: V MULTIModel FDR308-A Model FDR408-
Page 34 and 35: V MULTIModelFDR408-AModelFDR508-A70
Page 36 and 37: V MULTI(2) Outdoor unitModel FDC508
Page 38 and 39: V MULTI8) When the unit is installe
Page 40 and 41: V MULTI• FDC808HES3 [Branch pipe
Page 42 and 43: V MULTI(b)Piping workRequest¡ Use
Page 44 and 45: V MULTI(4) Electrical wiring This a
Page 46: V MULTIMEMO722

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