LG HM031M.U42 User Manual

www.lg.comAir-to-Water Heat PumpPlease read this installation manual completely before installing the product.Installation work must be performed in a

General Information10 Air-to-Water Heat PumpWith advanced inverter technology, is suitable for applications like under floor heating,and hot water ge

General Information Installation Manual 11ENGLISHAccessoriesAccessories supported by LG ElectronicsTo extend the functionality of

Installation12 Air-to-Water Heat PumpSelection of The Best Location1. Select space for installing unit, which will meet the following conditions:• No

InstallationInstallation Manual 13ENGLISH3. When installing the unit in a place that is constantly exposed to a strong wind like a coast or ona high

Installation14 Air-to-Water Heat PumpSeasonal Wind and Cautions in Winter• Sufficient measures are required in a snow area or severe cold area in wint

Installation Installation Manual 15ENGLISHFoundation for Installation2007575200100950390360614 165• Check the strength and level of the installatio

Installation16 Air-to-Water Heat PumpIf is installed with pre-existing boiler, the boiler and should not be operated together. Ifentering water tempe

Installation Installation Manual 17ENGLISHCASE 2: Connecting sanitary water tank(Under floor loop, Fan coil unit, and Radiator)RATOutdoor IndoorFlo

Installation 18 Air-to-Water Heat PumpCASE 3: Connecting Solar thermal systemSolar heat sourceHot waterRTOutdoor IndoorFloor heating loopFan coil un

Installation Installation Manual 19ENGLISHGeneral considerationsFollowings are should be considered before beginning water circuit connection.•

2 Air-to-Water Heat PumpAir-to-Water Heat Pump Installation ManualTABLE OF CONTENTS1. SAFETY PRECAUTIONS...

Installation20 Air-to-Water Heat PumpWater Pipe InsulationPurpose of water pipe insulation is :To prevent heat loss to external environment.To prevent

Installation Installation Manual 21ENGLISHWater pump performanceThe water pump is three speed-adjustable (Maximum / Medium / Minimum), so it may be

Installation 22 Air-to-Water Heat PumpWater qualityWater quality should be complied with EN 98/83 EC Directives. Requirement for resolved chemicalin

Installation Installation Manual 23ENGLISHElectrical Wiring1. Follow ordinance of your governmental organization for technical standard related

Installation24 Air-to-Water Heat Pumpu Wire specificationPower cable specification : The power cord connected to the unit should be complied with IEC6

InstallationInstallation Manual 25ENGLISH• Earth should be connected.• If grounding is not properly done, there is a risk of electric shock. Groundin

Installation26 Air-to-Water Heat PumpWiring procedure for power cableThis cable is generally connected between external power source (such as main ele

Installation Installation Manual 27ENGLISHTerminal block 2Terminal block 1Terminal block informationSymbols used below pictures are as follows :- L

Installation28 Air-to-Water Heat PumpCircuit breaker specification• Select a power source that is capable of supplying the current required by the uni

Installation Installation Manual 29ENGLISH1. Use a separate unit power and heater power.2. Bear in mind ambient conditions (ambient temperature,dir

Safety PrecautionsInstallation Manual 3ENGLISH1. Safety PrecautionsTo prevent injury to the user or other people and property damage, the following i

Installation30 Air-to-Water Heat PumpInstallation of the final checkNo. Check point Description1Connection of WaterInlet/Outlet2Hydraulic pressure 3Wa

Installation Manual 31Accessories InstallationENGLISHInstallation of Remote ControllerThe Heat Pump can interface to various accessories to extend it

Accessories Installation32 Air-to-Water Heat Pump3. Please fix remote controller upper part intothe setup board attached to the surface ofthe wall, as

Accessories Installation Installation Manual 33ENGLISHInstallation conditionThermostat is generally used to control the unit by air temperature. Wh

Accessories Installation34 Air-to-Water Heat PumpGeneral informationThe Heat Pump supports following thermostats.(1) There is no electric circuit insi

Accessories Installation Installation Manual 35ENGLISHHow to wire thermostatFollow below procedures Step 1 ~ Step 5.Step 1. Uncover front cover of

Accessories Installation36 Air-to-Water Heat PumpFinal check• DIP switch setting : Set DIP switch No. 8 to ‘ON’. Otherwise, the unit can not recognize

Accessories Installation Installation Manual 37ENGLISHTo establish sanitary water circuit, 3way valve and sanitary water tank kit is required. If s

Accessories Installation38 Air-to-Water Heat PumpHow to wire sanitary water tank heaterStep 1. Uncover heater cover of the sanitary water tank. Heater

Accessories Installation Installation Manual 39ENGLISHHow to install sanitary water tank kitFollow below procedures Step 1 ~ Step 5.Step 1. Uncover

4 Air-to-Water Heat PumpSafety PrecautionsDo not install the waterpipe system as Openloop type.• It may cause failure ofunit.Use a vacuum pump orinert

Accessories Installation40 Air-to-Water Heat PumpLG Dry Contact is a solution for automatic control of air conditioning system at the owner's be

Accessories Installation Installation Manual 41ENGLISHRemote air sensorRemote temperature sensor can be installed any place a user wants to detect

Accessories Installation42 Air-to-Water Heat Pump• 3way valve should select water tank loop when electric power issupplied to wire (W) and wire (N).•

Accessories Installation Installation Manual 43ENGLISH• For correct operation of the unit, all air in the system must be exhausted by manual air-ve

System Set-Up44 Air-to-Water Heat PumpThe Heatpump is designed to satisfy various installation environment, it is important to set upsystem correctly.

System Set-UpInstallation Manual 45ENGLISHDIP switch information• If you set Dip switch when power is on, the changed setting will not be applied imm

System Set-Up46 Air-to-Water Heat PumpEmergency operation• Definition of terms- Trouble : a problem which can stop system operation, and can be resume

System Set-Up Installation Manual 47ENGLISH• Following features are permitted in emergency operation :- Operation On/Off- VI

System Set-Up48 Air-to-Water Heat PumpInstaller SettingHow to enter installer setting modeInstaller setting mode is to set the detail function of the

System Set-Up Installation Manual 49ENGLISHSummaryExample of function code displayValue #1Function Code Value #2Code Item Detail Remark02FunctionDe

Safety Precautions Installation Manual 5ENGLISHTake care to ensurethat power cable couldnot be pulled out ordamaged during opera-tion.• There is ri

System Set-Up50 Air-to-Water Heat PumpCode Item Detail Remark06FunctionDescriptionValue #1NoteDefaultRangeValue #2NoteDefaultRange06FunctionDescriptio

System Set-Up Installation Manual 51ENGLISHCode Item Detail Remark12Value #2NoteDefaultRange13Function'Setting airtemperature' isused whe

System Set-Up52 Air-to-Water Heat PumpCode Item Detail Remark23FunctionDescriptionValue #1NoteDefaultRangeValue #2NoteDefaultRange24FunctionDescriptio

System Set-Up Installation Manual 53ENGLISHCode Item Detail Remark26FunctionSanitary water heatingshould be enable.• If sanitary wateheating is dis

System Set-Up54 Air-to-Water Heat Pump※Some contents may not be displayed depending on DIP switch setting in the Main PCB.Code Item Detail Remark2BFun

System Set-Up Installation Manual 55ENGLISHCommon setting• Function Code 02 : Disable 3 minute delayFactory use only.• Function Code 03 : Remote ai

System Set-Up56 Air-to-Water Heat PumpTemperature range setting• Function Code 13 : Setting air temperature in heating modeDetermine heating setting t

System Set-Up Installation Manual 57ENGLISH1Keep pressing programming button for 3 seconds to enter settingscreed drying mode. 2Press programming b

System Set-Up58 Air-to-Water Heat PumpTemperature control parameter setting and etc• Function Code 23, 24, and 25 : Setting weather-dependent operatio

System Set-Up Installation Manual 59ENGLISH• Function Code 26 and 27 : Setting disinfection operationDisinfection operation is special sanitary tan

Safety Precautions 6 Air-to-Water Heat PumpTurn the main power on6 hours ago before theproduct starting opera-tion.• Otherwise, it may causecompress

System Set-Up60 Air-to-Water Heat Pump• Function Code 28 and 29 : Setting control parameter for sanity water heating operationDescriptions for each pa

System Set-Up Installation Manual 61ENGLISH• Function Code 2A : Miscellaneous setting- Value #1 of Function Code 2A : determine electric heater and

Check Points, Maintenance and Troubleshooting62 Air-to-Water Heat PumpIf everything is going well until now, it is time to start the operation and to

Check Points, Maintenance and TroubleshootingInstallation Manual 63ENGLISHTo assure best performance of , it is required to

Test run flow chartCheck Points, Maintenance and Troubleshooting64 Air-to-Water Heat PumpSTARTYesNoNoNoNoOperate the unit in heating mode.Does Test op

Check Points, Maintenance and TroubleshootingInstallation Manual 65ENGLISHBy default, the product was charged of refrigerant.Vacuum and refrigerant c

Check Points, Maintenance and Troubleshooting66 Air-to-Water Heat PumpWhen selecting a vacuum, you should select one which is capable of achieving 0.2

Check Points, Maintenance and TroubleshootingInstallation Manual 67ENGLISH3. Location of SVC portSVC PortRefrigerantcylinderRefrigerantcylinder 1.MFL

Check Points, Maintenance and Troubleshooting68 Air-to-Water Heat PumpIf the Heat Pump operates not properly or it does not start operation, please ch

Check Points, Maintenance and TroubleshootingInstallation Manual 69ENGLISHTroubleshooting for Error CodeCodeNo.Description Cause Normal Condition1268

Safety Precautions Installation Manual 7ENGLISHIf you have to install it where there is a lot of snow, by increasing the maxi-mum amount of snow

Check Points, Maintenance and Troubleshooting70 Air-to-Water Heat PumpA HBW 0 3 6 H 0Serial numberProduct electric power rating6 : 220-240 V~ 50 Hz8 :

1.MFL68026604(영영) 17. 7. 6. 영영 5:37 Page 100

Safety Precautions 8 Air-to-Water Heat Pumpn InstallationAlways check for gas(refrigerant) leakageafter installation or re-pair of unit.• Low refrig

Installation Manual 9ENGLISHInstallation Parts2. Installation PartsBefore starting installation, please make it sure that all parts are found inside