LG THERMA V HN1639 User manual

P/NO : MFL63285302
www.lg.com
INSTALLATION MANUAL
AIR CONDITIONER
• Please read this installation manual completely before installing the product.
• Installation work must be performed in accordance with the national wiring
standards by authorized personnel only.
• Please retain this installation manual for future reference after reading it
thoroughly.
TYPE : Air-to-Water Heat Pump
ITALIANO ESPAÑOL FRANÇAIS DEUTSCH
PORTUGUÊS
ENGLISH

Air-to-Water Heat Pump Installation Manual
TABLE OF CONTENTS
ITEMS INSIDE PRODUCT BOX ..........................................................................................5
INDOOR UNIT BOX ......................................................................................................................5
OUTDOOR UNIT BOX ..................................................................................................................5
PREFACE.............................................................................................................................6
1. SAFETY PRECAUTION...................................................................................................7
WARNING .....................................................................................................................................7
INSTALLATION WARNING .....................................................................................................7
OPERATION WARNING .........................................................................................................8
CAUTION ......................................................................................................................................9
INSTALLATION CAUTION ......................................................................................................9
OPERATION CAUTION ..........................................................................................................9
2. GENERAL INFORMATION ............................................................................................10
MODEL INFORMATION ..............................................................................................................11
ACCESSORIES ..........................................................................................................................12
ACCESSORIES SUPPORTED BY LG Electronics ...............................................................12
ACCESSORIES SUPPORTED BY 3rd PARTY COMPANIES ..............................................12
TYPICAL INSTALLATION EXAMPLE..........................................................................................13
CASE 1..................................................................................................................................13
CASE 2..................................................................................................................................14
CASE 3 .................................................................................................................................15
CYCLE DIAGRAM ......................................................................................................................16
REFRIGERANT CYCLE........................................................................................................16
WATER CYCLE.....................................................................................................................18
PARTS AND DIMENSIONS ........................................................................................................19
INDOOR UNIT (EXTERNAL) ................................................................................................19
INDOOR UNIT (INTERNAL)..................................................................................................21
OUTDOOR UNIT (EXTERNAL) ............................................................................................21
CONTROL PARTS ......................................................................................................................24
CONTROL BOX : INDOOR UNIT..........................................................................................24
CONTROL PANEL ................................................................................................................25
WIRING DIAGRAM : INDOOR UNIT.....................................................................................25
CIRCUIT DIAGRAM : INDOOR UNIT ...................................................................................25
WIRING DIAGRAM : OUTDOOR UNIT.................................................................................25
WIRING DIAGRAM : INDOOR UNIT AND OUTDOOR UNIT (INCL. FIELD WIRING).........26
2Air-to-Water Heat Pump

3. INSTALLATION OF OUTDOOR UNIT ...........................................................................30
CONDITIONS WHERE OUTDOOR UNIT IS INSTALLED..........................................................30
DRILL A HOLE IN THE WALL.....................................................................................................30
INSTALLATION AT SEASIDE .....................................................................................................31
SEASONAL WIND AND CAUTIONS IN WINTER ......................................................................31
4. INSTALLATION OF INDOOR UNIT ...............................................................................32
CONDITIONS WHERE INDOOR UNIT IS INSTALLED..............................................................32
GENERAL CONSIDERATIONS ............................................................................................32
SERVICE SPACE..................................................................................................................32
MOUNTING TO WALL ..........................................................................................................33
WATER VOLUME AND WATER PUMP CAPACITY .............................................................34
WATER VOLUME AND EXPANSION VESSEL PRESSURE................................................35
WATER QUALITY .................................................................................................................36
CONDITIONS IF ACCESSORIES ARE INSTALLED..................................................................37
THERMOSTAT ......................................................................................................................37
REMOTE AIR TEMPERATURE SENSOR ........................................................................... 37
SANITARY WATER TANK AND SANITARY WATER TANK KIT / SOLAR THERMAL KIT ...38
3WAY VALVE(2WAY VALVE) ................................................................................................40
5. PIPING AND WIRING FOR OUTDOOR UNIT ...............................................................41
REFRIGERANT PIPING .............................................................................................................41
CONSTRAINTS IN PIPE LENGTH AND ELEVATION ..........................................................41
PREPARATION FOR PIPING ...............................................................................................42
CONNECTING PIPE TO INDOOR UNIT ..............................................................................43
CONNECTING PIPE TO OUTDOOR UNIT ..........................................................................43
ELECTRICAL WIRING................................................................................................................46
WIRE SPECIFICATION.........................................................................................................46
CIRCUIT BREAKER SPECIFICATION .................................................................................47
WIRING PROCEDURE FOR POWER CABLE AND CONNECTING CABLE.......................47
FINALIZING ................................................................................................................................49
PIPE FORMING ....................................................................................................................49
LEAKAGE TEST AND EVACUATION.........................................................................................50
PREPARATION .....................................................................................................................50
LEAKAGE TEST ...................................................................................................................50
EVACUATION........................................................................................................................51
6. PIPING AND WIRING FOR INDOOR UNIT...................................................................52
WATER PIPING AND WATER CIRCUIT CONNECTION............................................................52
GENERAL CONSIDERATIONS ............................................................................................52
WATER PIPING AND WATER CIRCUIT CONNECTION......................................................52
WATER CHARGING .............................................................................................................54
PIPE INSULATION ................................................................................................................54
ENGLISH
Installation Manual 3

ELECTRICAL WIRING................................................................................................................55
GENERAL CONSIDERATION...............................................................................................55
TERMINAL BLOCK INFORMATION .....................................................................................56
CONNECTING WITH OUTDOOR UNIT ...............................................................................58
ELECTRIC HEATER WIRING ...............................................................................................58
7. ACCESSORIES INSTALLATION...................................................................................59
BEFORE INSTALLATION ...........................................................................................................59
THERMOSTAT ............................................................................................................................59
GENERAL INFORMATION ...................................................................................................59
HOW TO WIRE THERMOSTAT ............................................................................................60
FINAL CHECK.......................................................................................................................61
SANITARY WATER TANK AND SANITARY WATER TANK KIT/SOLAR THERMAL KIT ...........62
GENERAL INFORMATION ...................................................................................................62
HOW TO INSTALL SANITARY WATER TANK......................................................................63
HOW TO INSTALL SANITARY WATER TANK KIT ...............................................................64
HOW TO WIRE SANITARY WATER TANK HEATER............................................................66
HOW TO INSTALL SOLAR THERMAL KIT...........................................................................67
DRY CONTACT...........................................................................................................................67
REMOTE TEMPERATURE SENSOR.........................................................................................67
3WAY VALVE ..............................................................................................................................68
HOW TO WIRE 3WAY VALVE ..............................................................................................68
FINAL CHECK.......................................................................................................................68
2WAY VALVE ..............................................................................................................................69
GENERAL INFORMATION ...................................................................................................69
HOW TO WIRE 2WAY VALVE ..............................................................................................69
FINAL CHECK.......................................................................................................................69
8. SYSTEM SET-UP...........................................................................................................70
DIP SWITCH SETTING...............................................................................................................70
GENERAL INFORMATION ...................................................................................................70
DIP SWITCH INFORMATION................................................................................................71
CONTROL PANEL SETTING......................................................................................................74
HOW TO ENTER INSTALLER SETTING MODE..................................................................74
SUMMARY ............................................................................................................................76
COMMON SETTING .............................................................................................................81
TEMPERATURE RANGE SETTING .....................................................................................82
TEMPERATURE CONTROL PARAMETER SETTING AND ETC.........................................83
9. CHECK POINTS, MAINTENANCE AND TROUBLESHOOTING..................................88
CHECK LIST BEFORE STARTING OPERATION.......................................................................88
MAINTENANCE ..........................................................................................................................89
TROUBLESHOOTING ................................................................................................................90
TROUBLESHOOTING FOR PROBLEM WHILE OPERATION.............................................90
4Air-to-Water Heat Pump

Items Inside Product Box
Thank you for choosing LG Electronics Air-to-Water Heat Pump
Before starting installation, please make it sure that all parts are found inside the product box.
INDOOR UNIT BOX
Indoor unit 1
1
1
Shut-off valve 2
1
1
Item Image Quantity Item Image Quantity
Installation
Manual
Installation
plate
Owner's
Manual Installation
Sheet
www.lg.com
INSTALLATION MANUAL
AIR CONDITIONER
•Please read this installation manual completely before installing the product.
•Installation work must be performed in accordance with the national wiring
standards by authorized personnel only.
•Please retain this installation manual for future reference after reading it
thoroughly.
TYPE:
www.lg.com
OWNER’S MANUAL
AIR CONDITIONER
Please read this manual carefullybefore operating
your set and retainit for future reference.
TYPE: WALL MOUNTED
Outdoor unit
UE1 Chassis
(Product heating capacity :
9kW)
OUTDOOR UNIT BOX
Item Image Quantity
1
1
1
Outdoor Unit
AHUW096A1(U4 Chassis)
(Product heating capacity :
9kW)
Outdoor unit
U3 Chassis
(Product heating capacity :
12kW,14kW,16kW)
Items inside product box
ENGLISH
Installation Manual 5

Preface
This installation manual is to present information and guide about understanding, installing,
and checking .
Your careful reading before installation is highly appreciated to make no mistake and to prevent potential risks.
The manual is divided into nine chapters. These chapters are classified according to installation procedure.
See the table below to get summarized information.
• Warning and Caution concerned with safety.
• This chapter is directly related with human safety. We STRONGLY
recommend reading this chapter carefully.
• Fundamental knowledge about
• Model identification, accessories information, refrigerant and water cycle
diagram, parts and dimensions, electrical wiring diagrams, etc.
• This chapter is important to understand
• Installation about the outdoor unit.
• Installation location, constraints on installation site, etc
• Installation about the indoor unit.
• Installation location, constraints on installation site, etc
• Constrains when accessories are installed
• How to perform piping (for refrigerant) and wiring at the outdoor unit.
• Refrigerant pipe connection between the indoor unit and the outdoor unit.
• Electrical wiring at the outdoor unit.
• How to perform piping (for water) and wiring at the indoor unit.
• Water pipe connection between the indoor unit and pre-built under floor
water loop pipe.
• Electrical wiring at the indoor unit.
• System set-up and configuration.
• As many control parameters of is adjustable by control panel,
deep understanding about this chapter is required to secure the operation
flexibility of
• For more detailed information, please read the separate OPERATION
MANUAL to use control panel and adjust control parameters.
• Information about supported accessories
• Specification, Constraints, and wiring are described.
• Before purchasing accessories, please find supported specification to buy
proper one.
• Test operation and check point while test running.
• Check points before starting operation are explained.
• Troubleshooting, maintenance, and error code list are presented to correct
problems.
Chapters Contents
Chapter 1
Chapter 2
Chapter 3
Chapter 4
Chapter 5
Chapter 6
Chapter 7
Chapter 8
Chapter 9
REMARK : ALL CONTENTS OF THIS MANUAL ARE SUBJECT TO CHANGE WITHOUT NOTICE.
TO GET THE LATEST INFORMATION, PLEASE VISIT LG ELECTRONICS WEB SITE
www.lgservice.com
Preface
6Air-to-Water Heat Pump

Safety Precautions
ENGLISH
Installation Manual 7
Do not modify or extend the
power cable.
• There is risk of fire or electric
shock.
Do not install, remove, or
reinstall the unit by yourself
(customer).
• There is risk of fire, electric
shock, explosion, or injury
Be cautious when
unpacking and installing the
product.
• Sharp edges could cause injury.
Especially careful on the product
edges and the fins on the heat
exchanger.
1. Safety Precautions
To prevent injury to the user or other people and property damage, the following instructions must be
followed.
■Be sure to read before installing the product.
■Be sure to observe the cautions specified here as they include important items related to safety.
■Incorrect operation due to ignoring instruction will cause harm or damage. The seriousness is classified
by the following indications.
■Meanings of symbols used in this manual are as shown below.
This symbol indicates the possibility of death or serious injury.
This symbol indicates the possibility of injury or damage to properties only.
■Installation
Be sure not to do.
Be sure to follow the instruction.
Do not use a defective or
underrated circuit breaker.
Use this appliance on a
dedicated circuit.
• There is risk of fire or electric
shock.
For electrical work, contact
the dealer, seller, a qualified
electrician, or an Authorized
Service Center.
• There is risk of fire or electric
shock.
Always ground the product.
• There is risk of fire or electric
shock.
Install the panel and the cover
of control box securely.
• There is risk of fire or electric
shock.
Always install a dedicated
circuit and breaker.
• Improper wiring or installation
may cause fire or electric
shock
Use the correctly rated
breaker or fuse.
• There is risk of fire or electric

8Air-to-Water Heat Pump
■Operation
For installation, always
contact the dealer or an
Authorized Service Center.
• There is risk of fire, electric
shock, explosion, or injury.
Do not install the product on
a defective installation
stand.
• It may cause injury, accident,
or damage to the product.
Be sure the installation area
does not deteriorate with
age.
• If the base collapses, the product
could fall with it, causing property
damage, product failure, and
personal injury.
Do not let the product run for a
long time when the humidity is
very high and a door or a
window is left open.
• Moisture may be condensed
and wet or damage furniture.
Take care to ensure that
power cable could not be
pulled out or damaged
during operation.
• There is risk of fire or electric
shock.
Do not place anything on
the power cable.
• There is risk of fire or electric
shock.
Do not plug or unplug the power
supply plug during operation.
• There is risk of fire or electric
shock.
Do not touch (operate) the
product with wet hands.
• There is risk of fire or electric
shock.
Do not place a heater or other
appliances near the power cable.
• There is risk of fire or electric
shock.
Safety Precautions
Do not allow water to run
into electric parts.
• There is risk of fire, failure of
the product, or electric shock.
Do not store or use flammable
gas or combustibles near the
product.
• There is risk of fire or failure
of product.
Do not use the product in a
tightly closed space for a
long time.
• Oxygen deficiency could
occur.
When flammable gas leaks,
turn off the gas and open a
window for ventilation
before turn the product on.
• There is risk of explosion or
fire.
If strange sounds, or small or
smoke comes from product, turn
the breaker off or disconnect the
power supply cable.
• There is risk of electric shock
or fire.
Stop operation and close the window
in storm or hurricane. If possible,
remove the product from the window
before the hurricane arrives.
• There is risk of property
damage, failure of product, or
electric shock.
Do not open the front cover of
the indoor unit while operation.
(Do not touch the electrostatic
filter, if the unit is so equipped.)
• There is risk of physical injury,
electric shock, or product
failure.
When the product is soaked
(flooded or submerged),
contact an Authorized
Service Center.
• There is risk of fire or electric
shock.
Be cautious that water could
not be poured to the product
directly.
• There is risk of fire, electric
shock, or product damage.
Use a vacuum pump or Inert (nitrogen) gas when doing leakage test or air purge. Do not compress air
or Oxygen and do not use Flammable gases. Otherwise, it may cause fire or explosion.
• There is the risk of death, injury, fire or explosion.

ENGLISH
Installation Manual 9
Safety Precautions
Ventilate the product from
time to time when operating
it together with a stove, etc.
• There is risk of fire or electric
shock.
Turn the main power off
when cleaning or
maintaining the product.
• There is risk of electric shock.
Take care to ensure that
nobody could step on or fall
onto the outdoor unit.
• This could result in personal
injury and product damage.
■Installation
Always check for gas
(refrigerant) leakage after
installation or repair of
product.
• Low refrigerant levels may cause
failure of product.
Do not install the product
where it will be exposed to
sea wind (salt spray)
directly.
• It may cause corrosion on the product.
Corrosion, particularly on the condenser
and evaporator fins, could cause product
malfunction or inefficient operation.
Keep level even when
installing the product.
• To avoid vibration or water
leakage.
Do not install the product where the noise
or hot air from the outdoor unit could
damage the neighborhoods.
• It may cause a problem for your neighbors.
Use two or more people to lift and transport
the product.
• Avoid personal injury.
Special warning about no operation for long-time
• If the product is not used for long time, we strongly recommend NOT TO SWITCH
OFF THE POWER SUPPLY to the product.
• If power is not supplied, some special product-protecting actions (such as water
pump anti-locking) will not performed.
■Operation
Do not lay on the cooled
floor for long time when the
product is in cooling
operation.
• This could harm to your health.
Do not use the product for
special purposes, such as
preserving foods, works of art,
etc. It is a consumer product, not
a precision refrigeration system.
• There is risk of damage or loss of property.
Do not block the outlet of air
flow.
• It may cause product failure.
Use a soft cloth to clean. Do
not use harsh detergents,
solvents, etc.
• There is risk of fire, electric
shock, or damage to the plastic
parts of the product.
Do not step on or put
anything on the product.
(outdoor units)
• There is risk of personal injury
and failure of product.
Do not insert hands or other
objects into the product
while it is operating.
• There are sharp and moving
parts that could cause personal
injury.
Use a firm stool or ladder
when cleaning or
maintaining the product.
• Be careful and avoid personal injury.
At low outdoor temperature,
the product will display
“CH44”
• It may cause a problem for product.

2. General Information
Model Information
With advanced inverter technology, is suitable for applications like under floor heating,
under floor cooling, and hot water generation. By Interfacing to various accessories user can
customize the range of the application.
In this chapter, general information of is presented to identify the installation
procedure. Before beginning installation, read this chapter carefully and find helpful information on
installation.
Model number nomenclature
A H —W 0 9 6 A 0
Series Number(N : Nordic Model)
Chassis Name
Electrical ratings
6 : 1 phase 220-240V AC 50Hz 8 : 3 phase 380-415V AC 50Hz
Heating Capacity (kW)
09 : 9kW 12 : 12kW 14 : 14kW 16 : 16kW
Model Type
W : Inverter Heat Pump H : Heat Pump
Classification
N : Indoor Unit U : Outdoor Unit – : Set
Air-to-Water Heat Pump for R410A
AH N W 0 9 A0 6 A0
Series Number
Chassis Name
Heater Electrical ratings
6 : 1 phase 220-240V AC 50Hz
8 : 3 phase 380-415V AC 50Hz
A : 3 phase 220V AC 50Hz
Heating Capacity (kW)
09 : 9kW 12 : 12kW 14 : 14kW 16 : 16kW
Heater Capacity (kW)
04 : 4kW 06 : 6kW 09 : 9kW
Model Type
W : Inverter Heat Pump H : Heat Pump
Classification
N : Indoor Unit U : Outdoor Unit — : Set
Air-to-Water Heat Pump for R410A
10 Air-to-Water Heat Pump
General Information