LG HM121MRS Handleiding
Pagina's 192 Airco
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INSTALLATION MANUAL
AIR-TO-WATER
HEAT PUMP
Original instruction
MFL68026621
Rev
.01_010325
ENENGLISHITITALIANOESESPAÑOLFRFRANÇAIS
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DADANSK
Outdoor Unit
[HM091 / 071 / 051MRS UA40]
[HM161 / 141 / 121MRS UB40]
[HM163 / 143 / 123MRS UB40]
www.lg.com
Copyright © 2024 - 2025 LG Electronics Inc. All Rights Reserved.
Please read this installation manual completely before
installing the product.
2
TABLE OF CONTENTS
SAFETY INSTRUCTIONS............................................................5
READ ALL INSTRUCTIONS BEFORE USE...................................................5
Safety Messages..........................................................................................5
Notes for Flammable Refrigerant..................................................................6
INSTALLATION PART...............................................................19
GENERAL INFORMATION.......................................................21
Model information ......................................................................................21
Parts and Dimensions.................................................................................22
Control Parts...............................................................................................26
Remote Controller.......................................................................................28
Typical Installation Example........................................................................29
Cycle Diagram.............................................................................................30
Wiring Diagram...........................................................................................31
INSTALLATION OF OUTDOOR UNIT.......................................34
Conditions to be considered when installing the outdoor unit....................34
Minimum Operation Space.........................................................................35
Multiple installation.....................................................................................36
Installation at Seaside.................................................................................38
Seasonal wind and cautions in winter.........................................................39
Transporting the Unit..................................................................................40
Foundation for Installation...........................................................................42
ELECTRICAL WIRING..............................................................44
General considerations and warnings.........................................................44
WATER PIPING........................................................................55
Water Piping and Water Circuit Connection................................................55
Water pump Capacity.................................................................................59
Pressure Drop.............................................................................................59
Performance curve......................................................................................60
Water Quality..............................................................................................62
Frost protection by antifreeze ............................................................62
Frost protection by antifreeze valve ...........................................................63
Water Volume and Expansion Vessel Pressure..........................................65
ACCESSORIES INSTALLATION...............................................66
Before Installation.......................................................................................69
Thermostat..................................................................................................69
2nd Circuit...................................................................................................72
3rd Party Boiler...........................................................................................75
3rd Party Controller.....................................................................................76
Meter Interface...........................................................................................77
TABLE OF CONTENTS
3
TABLE OF CONTENTS
ENGLISH
Central Controller........................................................................................79
DHW Tank...................................................................................................80
DHW Tank Kit.............................................................................................83
Solar Thermal Kit.........................................................................................85
Buffer Tank temperature sensor.................................................................87
Dry Contact.................................................................................................88
External Controller - Setting up programmable digital input operation .......90
Remote Controller.......................................................................................91
Remote Temperature Sensor.....................................................................95
Solar pump..................................................................................................97
External pump.............................................................................................98
Wi-Fi Modem..............................................................................................99
Energy State.............................................................................................100
Digital Input for energy saving (ESS, Smart Grid)......................................101
2Way Valve...............................................................................................102
3Way Valve(A)...........................................................................................103
Wall-mounted air sensor...........................................................................104
Electric Heater..........................................................................................105
Typical Installation Example......................................................................109
Final check................................................................................................111
CONFIGURATION..................................................................112
DIP Switch Setting ...................................................................................112
SERVICE SETTING.................................................................118
How to enter service setting....................................................................118
Service setting..........................................................................................118
Service contact.........................................................................................119
INSTALLER SETTING.............................................................120
How to enter installer setting...................................................................120
Installer setting.........................................................................................121
Installer settings in detail..........................................................................146
Auto mode - Seasonal auto temp.............................................................161
Domestic hot water - DHW temperature settings....................................162
Domestic hot water - Thermal disinfection ..............................................163
Domestic hot water - DHW heating duration............................................164
Domestic hot water - DHW electric re-heating.........................................164
Domestic hot water - DHW re-circulation.................................................165
Solarthermal system - Solar collector operating range..............................166
Solarthermal system - Solar tank temp. limit............................................166
Solarthermal system - Solathermal dT......................................................166
Service - Pump test run............................................................................167
Service - Actuator test - Test mode..........................................................167
Alle foutcodes LG Airco 83 foutcodes uit 64 handleidingen, met hun betekenis.
Product specificaties
| Merk: | LG |
| Categorie: | Airco |
| Model: | HM121MRS |
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