LG LMU540HV Installation and user guide

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MultiFMAXInverterHeatPumpOutdoorUnit
DFS‐SB‐AJ‐001‐US012M18
Performance:
LMU540HV
Capacity(Btu/h) 54,000
CoolingPowerInput(kW) 5.10
HeatingPowerInput(kW) 5.34
CoolingNominalTestConditions: HeatingNominalTestConditions:
Indoor: 80°FDB/67°FWB Indoor: 70°FDB/60°FWB
Outdoor: 95°FDB/75°FWB Outdoor: 47°FDB/43°FWB
Electrical:
PowerSupply(V¹/Hz/Ø) 208‐230/60/1
MOP(A) 40
MCA(A) 26.4
CoolingRatedAmps(A) 21
HeatingRatedAmps(A) 21
Compressor(A) 18.5
FanMotor
(
A
)
2.5
Piping:
RefrigerantCharge(lbs) 9.7
LiquidLine(in,OD) 3/8(1Each)
VaporLine(in,OD) 3/4(1Each)
MaxTotalPiping(ft)² 476
MaxElevationbetweenODUandIDU(ft) 98
MaxElevationbetweenIDUandIDU(ft) 49
ControlsFeatures:
•Autooperaon
•Autorestartoperaon
•Defrost/Deicing
•Inverter(variablespeed
compressor)
•NightQuietOperaon
•Lowambientoperaonto
14F(coolingmode)
•Restartdelay(3‐minutes)
•Selfdiagnosis
•Sostart
OperatingRange:
Cooling(°FDB) 14‐118
Heatin
g
(°FWB) 0‐64
UnitData:
RefrigerantType R410A
RefrigerantControl EEV
SoundPressure⁴Max(Cool/Heat)±3dB(A) 54/56
NetUnitWeight(lbs) 214
ShippingWeight(lbs) 236
HeatExchangerCoating GoldFin™
MaxNumberofIndoorUnits 8
Compressor:
Quantity 1
Type Twin‐RotaryInverter
Oil/Type FVC68D
Fan:
Type Propeller
Quantity 2
FanMotor/Drive BrushlessDigitallyControlled/Direct
AirflowRate(CFM) 2,119
StandardFeatures:
•LimitedSevenYearCompressorWarranty
•LimitedFiveYearFunctionalPartsWarranty
Notes:
1.Acceptableoperangvoltage:187V‐253V.
2.Pipinglengthsareequivalent.
3.AtleastoneBDUnitisrequiredforsystemoperaon;amaximumoftwocanbeinstalled
perODUwithuseofY‐branchaccessory(PMBL5620).
4.SoundPressurelevelsaretestedinananechoicchamberunderISOStandard1996.
5.Allcommunicaoncabletobeminimum18AWG,2‐conductor,stranded,shieldedand
mustcomplywithapplicablelocalandnationalcode.
6.SeeEngineeringManualCapacityTablesforODUsensibleandlatentcapacies.
7.SeeEngineeringManualCombinaonTabl esforallocaonofODUratedcapacitytoeach
connectedIDUwhenallarecallingforfullcapacity.Allocationpercentagesshouldbeapplied
toODUcapacityatdesignconditions.
8.Powerwiringcablesizemustcomplywiththeapplicablelocalandnaonalcode.
9.Thisdataisrated0abovesealevel,with32.8ofrefrigerantlineanda0level
differencebetweenoutdoorandindoorunits.Allcapacitiesarenetwithacombinationratio
between95–105%.
10.MustfollowinstallaoninstruconsintheapplicableLGinstallaonmanual.
11.SeeEngineeringManualCapacityTablesforODUcapacityatdesigncondions.
MaxODUtoIDUPiping(ft) 230
PipingLength(noadd'lrefrigerant,ft) 147
CommunicationCable(No.xAWG)⁵4x16
MinNumberofIndoorUnits 2
Forcontinualproductdevelopment,LGreservestherighttochangespecificationswithoutnotice.
LGElectronicsU.S.A.,Inc.,EnglewoodCliffs,NJ.Allrightsreserved.“LGLife’sGood”isaregisteredtrademarkofLGCorp./www.lghvac.com
O
p
tionalAccessories:
PI‐485IntegrationBoard‐PMNFP14A0
ACSmartII‐PQCSW320A1E
ACEz‐PQCSZ250S0
MOP‐MaximumOvercurrentProtection MCA‐MinimumCircuitAmpacity
ODU‐OutdoorUnit IDU‐IndoorUnit
AWG‐AmericanWireGage
PowerDistributionIndicator‐PQNUD1S00
2PortBDUnit‐PMBD3620
3PortBDUnit‐PMBD3630
4PortBDUnit‐PMBD3640
Page1of3
Re
q
uired³Accessories:
Y‐Branch‐PMBL5620

JobName/Location:
Tag#:
Date:
PONo.:
MultiFMAXInverterHeatPumpOutdoorUnit
DFS‐SB‐AJ‐001‐US012M18
LMU540HV
Forcontinualproductdevelopment,LGreservestherighttochangespecificationswithoutnotice.
LGElectronicsU.S.A.,Inc.,EnglewoodCliffs,NJ.Allrightsreserved.“LGLife’sGood”isaregisteredtrademarkofLGCorp./www.lghvac.com Page2of3

JobName/Location:
Tag#:
Date:
PONo.:
MultiFMAXInverterHeatPumpOutdoorUnit
LMU540HV
DFS‐SB‐AJ‐001‐US012M18
Forcontinualproductdevelopment,LGreservestherighttochangespecificationswithoutnotice.
LGElectronicsU.S.A.,Inc.,EnglewoodCliffs,NJ.Allrightsreserved.“LGLife’sGood”isaregisteredtrademarkofLGCorp./www.lghvac.com Page3of3