
www.lg.comPlease read this installation manual completely before installing the product.Installation work must be performed in accordance with the nat
General Information10 Air-to-Water Heat PumpComponents9 831 27610451112AABBDescriptionNo Name Remarks1 Entering water pipe PT 25.4mm(Female type)2 Lea
General InformationInstallation Manual 11ENGLISH91 2121138641075AABBDescriptionNo Name Remarks1 Entering water pipe PT 25.4mm(Female type)2 Leaving w
General Information12 Air-to-Water Heat Pump1 21211AB938641075BADescriptionNo Name Remarks1 Entering water pipe PT 25.4mm(Female type)2 Leaving water
General Information Installation Manual 13ENGLISHAccessoriesAccessories supported by LG ElectronicsTo extend the functionality of
General Information14 Air-to-Water Heat PumpAccessories supported by 3rdparty CompaniesItem Purpose SpecificationThermostat To control by air temperat
InstallationInstallation Manual 15ENGLISH4. InstallationTransporting the Unit• When carrying the suspended unit, pass the ropes between legs of base
Installation16 Air-to-Water Heat PumpSelection of The Best Location1. Select space for installing unit, which will meet the following conditions:• No
Installation Installation Manual 17ENGLISHGeneral considerations• If a sunroof is built over the unit to preventdirect sunlight or rain exposure, m
Installation18 Air-to-Water Heat PumpInstallation at SeasideSeasonal Wind and Cautions in Winter• Sufficient measures are required in a snow area or s
Installation Installation Manual 19ENGLISHFoundation for Installation[Unit:mm]Foundation bolt executing method2001012361Nut7575200Spring washerFram
2 Air-to-Water Heat PumpAir-to-Water Heat Pump Installation ManualTABLE OF CONTENTS1. SAFETY PRECAUTIONS...
Installation20 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 21ENGLISHCASE 2: Connecting sanitary water tank(Under floor loop, Fan coil unit, and Radiator)RTOutdoor IndoorFloo
Installation 22 Air-to-Water Heat PumpCASE 3: Connecting Solar thermal systemSolar heat sourceHot waterRTOutdoor IndoorFloor heating loopFan coil un
Installation Installation Manual 23ENGLISHGeneral considerationsFollowings are should be considered before beginning water circuit connection.•
Installation24 Air-to-Water Heat PumpWater condensation on the floorWhile cooling operation, it is very important to keep leaving water temperature hi
Installation Installation Manual 25ENGLISHMax. : high speed setting, Med. : low speed setting Warning : Selecting a water flowrate outside the curv
Installation 26 Air-to-Water Heat PumpWater qualityWater quality should be complied with EN 98/83 EC Directives. Requirement for resolved chemicalin
Installation Installation Manual 27ENGLISHExpansion vessel should be installed in the water circuit to protect components from waterpressure.- M
Installation28 Air-to-Water Heat PumpElectrical Wiring1. Follow ordinance of your governmental organization for technical standard related to electric
InstallationInstallation Manual 29ENGLISHu Wire specificationPower cable specification : The power cord connected to the unit should be complied with
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 Pump• Earth should be connected.• If grounding is not properly done, there is a risk of electric shock. Grounding mus
Installation Installation Manual 31ENGLISHWiring procedure for power cableThis cable is generally connected between external power source (such as
Installation32 Air-to-Water Heat PumpStep 2. : Connect power cable to main power terminalSee below figure for detailed information. When connecting ea
Installation Installation Manual 33ENGLISHTerminal block 2Terminal block 1Terminal block 3AHBW**6A0(1 Phase) AHBW**8A0(3 Phase)connecting external
Installation34 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 35ENGLISH1. Use a separate unit power and heater power.2. Bear in mind ambient conditions (ambient temperature,dir
Installation36 Air-to-Water Heat PumpWater chargingFor water charging, please follow below procedures.Step 1. Open all valves of whole water circuit.
Installation Manual 37Installation ENGLISHInstallation of the final checkNo. Check point Description1Connection of WaterInlet/Outlet- Check if the
Accessories Installation38 Air-to-Water Heat PumpInstallation of Remote Controller5. Accessories InstallationThe Heat Pump can interface to various ac
Accessories Installation Installation Manual 39ENGLISHWallSideWallSideWallSideWallSide<Connecting order><Separating order>3. Please fix
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 PumpInstallation conditionThermostatThermostat is generally used to control the unit by air temperature.
Accessories Installation Installation Manual 41ENGLISHGeneral informationThe Heat Pump supports following thermostats.YesHeating / Cooling (4)YesHe
Accessories Installation42 Air-to-Water Heat PumpHow to wire thermostatFollow below procedures Step 1 ~ Step 5.Step 1. Uncover front cover of the unit
Accessories Installation Installation Manual 43ENGLISHFinal check• DIP switch setting : Set DIP switch No. 8 to ‘ON’. Otherwise, the unit can not r
Accessories Installation44 Air-to-Water Heat PumpTo establish sanitary water circuit, 3way valve and sanitary water tank kit is required. If solar the
Accessories Installation Installation Manual 45ENGLISHHow to wire sanitary water tank heaterStep 1. Uncover heater cover of the sanitary water tank
Accessories Installation46 Air-to-Water Heat PumpHow to install sanitary water tank kitFollow below procedures Step 1 ~ Step 5.Step 1. Uncover the wat
Accessories Installation Installation Manual 47ENGLISHLG Dry Contact is a solution for automatic control of air conditioning system at the owner&a
Accessories Installation48 Air-to-Water Heat PumpRemote Temperature SensorRemote temperature sensor can be installed any place a user wants to detect
Accessories Installation Installation Manual 49ENGLISH• 3way valve should select water tank loop when electric power issupplied to wire (W) and wir
Safety PrecautionsInstallation Manual 5ENGLISHDo not touch (operate)the unit with wet hands.• There is risk of fire orelectric shock.Do not place a h
Accessories Installation50 Air-to-Water Heat Pump• For correct operation of the unit, all air in the system must be exhausted by manual air-vent.(loca
Accessories Installation Installation Manual 51ENGLISHDew Condensation• Wrong wiring can yield dew condensation on the floor. If radiator isconnect
System Set-Up52 Air-to-Water Heat Pump6. System Set-UpThe Heatpump is designed to satisfy various installation environment, it is important to set ups
System Set-Up Installation Manual 53ENGLISH* Step 1. operate heater partially.** Step 2. operate heater fully.DIP switch information• If you set Di
System Set-Up54 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 55ENGLISH• Following features are permitted in emergency operation :- Operation On/Off- VI
System Set-Up56 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 57ENGLISHSummaryExample of function code displayValue #1Function Code Value #2Code Item Detail Remark01FunctionDe
System Set-Up58 Air-to-Water Heat PumpCode Item Detail Remark05FunctionDescriptionValue #1NoteDefaultRangeValue #2NoteDefaultRange06FunctionDescriptio
System Set-Up Installation Manual 59ENGLISHCode Item Detail Remark13Function'Setting airtemperature' isused when userwants to settargette
6 Air-to-Water Heat PumpVentilate the unit fromtime to time whenoperating it togetherwith a stove, etc.• There is risk of fire orelectric shock.Turn t
System Set-Up60 Air-to-Water Heat PumpCode Item Detail Remark22 FunctionDescriptionValue #1NoteDefaultRangeValue #2NoteDefaultRange23 FunctionDescript
System Set-Up Installation Manual 61ENGLISHCode Item Detail Remark26 Function Sanitary waterheating should beenable.• If sanitary waterheating is d
System Set-Up62 Air-to-Water Heat Pump※Some contents may not be displayed depending on DIP switch setting in the Main PCBassembly(Heater).Code Item De
System Set-Up Installation Manual 63ENGLISHCommon setting• Function Code 01 : Additional refrigerant chargingAdditional refrigerant charging should
System Set-Up64 Air-to-Water Heat PumpTemperature range setting• Function Code 11 : Setting air temperature in cooling modeDetermine cooling setting t
System Set-Up Installation Manual 65ENGLISH1Keep pressing programming button for 3 seconds to enter settingscreed drying mode. 2Press programming b
System Set-Up66 Air-to-Water Heat PumpTemperature control parameter setting and etc• Function Code 21 : Setting electric heater On / Off temperatureUs
System Set-Up Installation Manual 67ENGLISH• Function Code 23, 24, and 25 : Setting weather-dependent operationWeather-dependent operation is that
System Set-Up68 Air-to-Water Heat Pump• Function Code 26 and 27 : Setting disinfection operationDisinfection operation is special sanitary tank operat
System Set-Up Installation Manual 69ENGLISH• Function Code 28 and 29 : Setting control parameter for sanity water heating operationDescriptions for
Installation Manual 7ENGLISHn InstallationAlways check for gas(refrigerant) leakageafter installation orrepair of unit.• Low refrigerant levelsmay ca
System Set-Up70 Air-to-Water Heat Pump• Function Code 2A : Miscellaneous setting- Value #1 of Function Code 2A : determine electric heater and sanitar
Check Points, Maintenance and TroubleshootingInstallation Manual 71ENGLISH7. Check Points, Maintenance and TroubleshootingIf everything is going well
Check Points, Maintenance and Troubleshooting72 Air-to-Water Heat PumpTo assure best performance of , it is required to perfo
Check Points, Maintenance and TroubleshootingInstallation Manual 73ENGLISHIs cold water discharged formore than 3 minutes ?STARTOperation mode change
Check Points, Maintenance and Troubleshooting74 Air-to-Water Heat PumpBy default, the product was charged of refrigerant.Vacuum and refrigerant charge
Check Points, Maintenance and TroubleshootingInstallation Manual 75ENGLISHWhen selecting a vacuum, you should select one which is capable of achievin
Check Points, Maintenance and Troubleshooting76 Air-to-Water Heat PumpRefrigerant cylinderRefrigerant cylinderz}jGwz}jGw3. Location of SVC portA
Check Points, Maintenance and TroubleshootingInstallation Manual 77ENGLISHIf the Heat Pump operates not properly or it does not start operation, plea
Check Points, Maintenance and Troubleshooting78 Air-to-Water Heat PumpTroubleshooting for Error CodeCodeNo.Description Cause Normal Condition1Problem
Installation Parts8 Air-to-Water Heat Pump2. Installation PartsBefore starting installation, please make it sure that all parts are found inside the u
Installation Manual 9ENGLISHGeneral Information3. General InformationModel InformationWith advanced inverter technology, is suitable for application
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