LG HM091HFS Handleiding
Pagina's 195 Airco
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INSTALLATION MANUAL
AIR-TO-WATER
HEAT PUMP
Original instruction
MFL68026628
Rev
.03_022526
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Outdoor Unit
HM091 / 071 / 051 HFS UA41
HM093 / 073 HFS UA41
HM161 / 141 / 121 HFS UB41
HM163 / 143 / 123 HFS UB41
www.lg.com
Copyright © 2025 - 2026 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
DELIVERED PARTS..................................................................22
GENERAL INFORMATION.......................................................24
Model information ......................................................................................24
Parts and Dimensions.................................................................................25
Control Parts...............................................................................................27
Remote controller.......................................................................................28
Typical Installation Example........................................................................29
Cycle Diagram.............................................................................................30
Wiring Diagram...........................................................................................32
INSTALLATION OF OUTDOOR UNIT.......................................34
Conditions to be considered when installing the outdoor unit....................34
Minimum Operation Space.........................................................................35
Safety Zone.................................................................................................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........................................................................53
Water Piping and Water Circuit Connection................................................53
Water pump Capacity.................................................................................57
Pressure Drop.............................................................................................57
Performance curve......................................................................................58
Water Quality..............................................................................................60
Frost protection by antifreeze.....................................................................60
Frost protection by antifreeze valve............................................................61
Water Volume and Expansion Vessel Pressure..........................................63
ACCESSORIES INSTALLATION...............................................64
Before Installation.......................................................................................67
Thermostat..................................................................................................67
2nd Circuit...................................................................................................71
3rd Party Boiler...........................................................................................74
3rd Party Controller.....................................................................................75
TABLE OF CONTENTS
3
TABLE OF CONTENTS
ENGLISH
Meter Interface...........................................................................................76
Central Controller........................................................................................78
DHW Tank...................................................................................................79
DHW Tank Kit.............................................................................................82
Solar Thermal Kit.........................................................................................84
Buffer Tank temperature sensor.................................................................86
Dry Contact.................................................................................................87
External Controller - Setting up programmable digital input operation .......89
Remote Controller.......................................................................................90
Remote Temperature Sensor.....................................................................95
Solar pump..................................................................................................97
External pump.............................................................................................98
Energy State...............................................................................................99
Digital Input for energy saving (ESS, Smart Grid)......................................100
2Way Valve...............................................................................................102
3Way Valve(A)...........................................................................................103
Wall-mounted air sensor...........................................................................104
Electric Heater..........................................................................................105
Typical Installation Example......................................................................110
Final check................................................................................................112
CONFIGURATION..................................................................113
DIP Switch Setting ...................................................................................113
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..........................................................................147
Auto mode - Seasonal auto temp.............................................................162
Domestic hot water - DHW temperature settings....................................163
Domestic hot water - Thermal disinfection ..............................................164
Domestic hot water - DHW heating duration............................................165
Domestic hot water - DHW electric re-heating.........................................165
Domestic hot water - DHW re-circulation.................................................166
Solarthermal system - Solar collector operating range..............................167
Solarthermal system - Solar tank temp. limit............................................167
Solarthermal system - Solathermal dT......................................................167
Alle foutcodes LG Airco 83 foutcodes uit 64 handleidingen, met hun betekenis.
Product specificaties
| Merk: | LG |
| Categorie: | Airco |
| Model: | HM091HFS |
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