P/NO : MFL62567801 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)
MODEL : CH Series
ENGLISH ITALIANO ESPAÑOL FRANÇAIS DEUTSCH ΕΛΛΗΝΙΚΆ
PORTUGUESE
2Air-to-Water Heat Pump
Air-to-Water Heat Pump Installation Manual
TABLE OF CONTENTS
1. SAFETY PRECAUTION...................................................................................................5
WARNING .....................................................................................................................................5
INSTALLATION .......................................................................................................................5
OPERATION............................................................................................................................6
CAUTION ......................................................................................................................................7
INSTALLATION .......................................................................................................................7
OPERATION............................................................................................................................7
2. INSTALLATION PARTS ...................................................................................................8
3. GENERAL INFORMATION ..............................................................................................9
MODEL INFORMATION................................................................................................................9
MODEL NAME AND RELATED INFORMATION.....................................................................9
ACCESSORIES ..........................................................................................................................10
ACCESSORIES SUPPORTED BY LG ELECTRONICS ......................................................10
ACCESSORIES SUPPORTED BY 3rd PARTY COMPANIES ..............................................10
TYPICAL INSTALLATION EXAMPLE .........................................................................................11
CASE 1 ..................................................................................................................................11
CASE 2..................................................................................................................................12
CYCLE DIAGRAM ......................................................................................................................13
REFRIGERANT CYCLE........................................................................................................13
WATER CYCLE ....................................................................................................................14
PARTS AND DIMENSIONS .......................................................................................................16
CONTROL PARTS .....................................................................................................................17
CONTROL BOX ....................................................................................................................17
REMOTE CONTROLLER .....................................................................................................18
WIRING DIAGRAM (INCL. FIELD WIRING) ........................................................................19
4. INSTALLATION OF UNIT ...........................................................................................................20
CONDITIONS WHERE UNIT IS INSTALLED ............................................................................20
GENERAL CONSIDERATIONS ...........................................................................................20
TRANSPORT ........................................................................................................................20
WATER VOLUME AND PUMP CAPACITY ..........................................................................21
WATER QUALITY .................................................................................................................22
FROST PROTECTION .........................................................................................................22
REMOTE CONTROLLER ....................................................................................................23
STRAINER ...........................................................................................................................25
SHUT-OFF VALVE ................................................................................................................25
INSTALLATION AT SEASIDE .....................................................................................................26
SEASONAL WIND AND CAUTIONS IN WINTER ......................................................................26
Installation Manual 3
ENGLISH
5. WIRING AND WATER PIPING FOR UNIT .................................................................................27
ELECTRICAL WIRING................................................................................................................27
WIRE SPECIFICATION.........................................................................................................27
GENERAL CONSIDERATION ..............................................................................................28
WIRING PROCEDURE FOR POWER CABLE AND CONNECTING CABLE.......................28
TERMINAL BLOCK INFORMATION .....................................................................................29
CIRCUIT BREAKER SPECIFICATION ................................................................................30
WATER PIPING AND WATER CIRCUIT CONNECTION............................................................31
GENERAL CONSIDERATIONS ...........................................................................................31
WATER PIPING AND WATER CIRCUIT CONNECTION .....................................................31
6. ACCESSORIES INSTALLATION ................................................................................................33
ELECTRIC HEATER ...................................................................................................................33
GENERAL INFORMATION ..................................................................................................33
MOUNTING ON THE WALL..................................................................................................33
HOW TO PIPE ELECTRIC HEATER ....................................................................................34
HOW TO WIRE ELECTRIC HEATER ..................................................................................35
THERMOSTAT ...........................................................................................................................36
INSTALLATION CONDITION ................................................................................................36
GENERAL INFORMATION ...................................................................................................37
HOW TO WIRE THERMOSTAT ............................................................................................38
FINAL CHECK ......................................................................................................................39
SANITARY WATER TANK AND SANITARY WATER TANK KIT/SOLAR THERMAL KIT............41
INSTALLATION CONDITION ................................................................................................41
HOW TO INSTALL SANITARY WATER TANK ......................................................................43
HOW TO INSTALL SANITARY WATER TANK KIT................................................................44
HOW TO WIRE SANITARY WATER TANK HEATER............................................................44
HOW TO INSTALL SOLAR THERMAL KIT...........................................................................44
3WAY VALVE ..............................................................................................................................45
GENERAL INFORMATION ...................................................................................................45
HOW TO WIRE 3WAY VALVE...............................................................................................45
FINAL CHECK.......................................................................................................................46
AIR-VENT ...................................................................................................................................46
WATER VOLUME AND EXPANSION VESSEL PRESSURE......................................................47
7. SYSTEM SET-UP ........................................................................................................................48
DIP SWITCH SETTING ..............................................................................................................48
GENERAL INFORMATION ...................................................................................................48
DIP SWITCH INFORMATION ...............................................................................................49
INSTALLER SETTING ................................................................................................................52
HOW TO ENTER INSTALLER SETTING MODE .................................................................52
SUMMARY ............................................................................................................................53
COMMON SETTING .............................................................................................................59
4Air-to-Water Heat Pump
TEMPERATURE RANGE SETTING .....................................................................................60
TEMPERATURE CONTROL PARAMETER SETTING AND ETC.........................................61
8. CHECK POINTS, MAINTENANCE AND TROUBLESHOOTING...............................................66
CHECK LIST BEFORE STARTING OPERATION.......................................................................66
MAINTENANCE ..........................................................................................................................67
LEAKAGE TEST AND EVACUATION .........................................................................................68
LEAKAGE TEST ...................................................................................................................68
EVACUATION........................................................................................................................69
FINISHING THE JOB ............................................................................................................69
TROUBLESHOOTING ................................................................................................................70
TROUBLESHOOTING FOR PROBLEM WHILE OPERATION ............................................70
TROUBLESHOOTING FOR ERROR CODE ........................................................................71
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
Installation Manual 5
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
unit.
•
Sharp edges could cause injury.
Especially careful on the unit edges
and the fins on the heat exchanger.
Safety Precautions
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 unit.
■
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 unit.
• 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.
ENGLISH
For antifreeze, always contact the dealer or
an authorized service center.
•
Almost the antifreeze is a toxic product.
The refrigerant of this product is R407C.
•
The installation tool such as manifold gauge should be
complied with R407C.
6Air-to-Water Heat Pump
Safety Precautions
■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 unit on a
defective installation stand.
• It may cause injury, accident,
or damage to the unit.
Be sure the installation area
does not deteriorate with
age.
• If the base collapses, the unit
could fall with it, causing
property damage, unit failure,
and personal injury.
Do not let the unit 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
unit 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.
Ventilate the unit 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 unit.
• There is risk of electric shock.
Take care to ensure that
nobody could step on or fall
onto the unit.
• This could result in personal
injury and unit damage.
Do not allow water to run
into electric parts.
• There is risk of fire, failure of
the unit, or electric shock.
Do not store or use flammable
gas or combustibles near the
unit.
• There is risk of fire or failure
of unit.
Do not use the unit 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 unit on.
• There is risk of explosion or
fire.
If strange sounds, or small or
smoke comes from unit, 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 unit from the window
before the hurricane arrives.
• There is risk of property
damage, failure of unit, or
electric shock.
Do not open the front cover of
the unit while operation. (Do
not touch the electrostatic filter,
if the unit is so equipped.)
• There is risk of physical injury,
electric shock, or unit failure.
When the unit 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 unit
directly.
• There is risk of fire, electric
shock, or unit damage.
For installation, always
contact the dealer or an
Authorized Service Center.
•
There is risk of fire, electric shock,
explosion, or injury.
If the unit is not used for long
time, we strongly recommend
not to switch off the power
supply to the unit.
•
There is risk of water freezing.
Installation Manual 7
ENGLISH
■Installation
Always check for gas
(refrigerant) leakage after
installation or repair of unit.
• Low refrigerant levels may cause
failure of unit.
Do not install the unit where
it will be exposed to sea
wind (salt spray) directly.
•
It may cause corrosion on the
unit. Corrosion, particularly on
the condenser and evaporator
fins, could cause unit
malfunction or inefficient
operation.
Keep level even when
installing the unit.
• To avoid vibration or water
leakage.
Do not install the unit where the noise or hot
air from the unit could damage the
neighborhoods.
• It may cause a problem for your neighbors.
Use two or more people to lift and transport
the unit.
• Avoid personal injury.
Safety Precautions
■Operation
Do not lay on the cooled
floor for long time when the
unit is in cooling operation.
• This could harm to your health.
Do not use the unit for special
purposes, such as preserving
foods, works of art, etc. It is a
consumer unit, 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 unit 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 unit.
Do not step on or put
anything on the unit.
• There is risk of personal injury
and failure of unit.
Do not insert hands or other
objects into the unit 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 unit.
• Be careful and avoid personal
injury.
8Air-to-Water Heat Pump
Installation Parts
2. Installation Parts
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 unit box.
Item Image Quantity
Installation Manual 1
Owner's Manual 1
Strainer 1
Shut-Off Valve 2
Remote Cotroller 1
Cable 1
OWNER’S MANUAL
AIR CONDITIONER
ENGLISHFRANÇAIS
Installation Manual 9
General Information
3. 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.
ENGLISH
Model name and related information
*1 : tested under Eurovent Heating condition (water temperature 30°C →35°C at outdoor ambient
temperature 7°C / 6°C)
*2 : tested under Eurovent Cooling condition (water temperature 23°C →18°C at outdoor ambient
temperature 35°C / 24°C)
CHBW146A1 14 14 1~ 220-240 V 50 Hz
CHBW126A1 12 12 1~ 220-240 V 50 Hz
CHBW096A1 10 10 1~ 220-240 V 50 Hz
Unit Capacity Power Source(unit)
Heating(kW*1) Cooling(kW*2)
10 Air-to-Water Heat Pump
General Information
Accessories
Accessories supported by LG Electronics
To extend the functionality of , there are various external auxiliary apparatus called as
"accessories."
They are classified by "accessories" and "3rd party accessories" according to the manufacturer.
Accessories are presented LG Electronics, and 3rd party accessories are presented by related
manufacturers.
Accessories supported by 3rd party Companies
Item Purpose Specification
Thermostat
3way valve and actuator
To control by air temperature
To control water flow for hot water
heating or floor heating
Heating-Only type (1~ 230 V or 1~ 24 V)
Cooling/Heating type (1~ 230 V or 1~ 24
V AC with Mode selection switch)
3 wire, SPDT (Single Pole Double
Throw) type, 1~ 230 V
Item Purpose Model
Sanitary Water Tank Install Kit
Remote Air Sensor
Dry Contact
Sanitary Water Tank
Electric Heater
(Air Vent)
AHEH0462A : 1~ 230 V 50 Hz 4 kW
AHEH0662A : 1~ 230 V 50 Hz 6 kW
To generate additional heat energy
To operate with sanitary water tank
To control by air temperature
To receive on & off external signal
To generate and store hot water
PHLTB
PQRSTA0
PQDSA (Installed)
PHS02060310 : 200 liter, Single Heating Coil,
1~ 230 V 50 Hz 3 kW Electric Heater
PHS02060320 : 200 liter, Double Heating Coil,
1~ 230 V 50 Hz 3 kW Electric Heater
PHS03060310 : 300 liter, Single Heating Coil,
1~ 230 V 50 Hz 3 kW Electric Heater
PHS03060320 : 300 liter, Double Heating Coil,
1~ 230 V 50 Hz 3 kW Electric Heater
Installation Manual 11
ENGLISH
General Information
If is installed with pre-existing boiler, the boiler and should not be operated together.
If entering water temperature of is above 65°C, the system will stop operation to
prevent mechanical damage of the unit. For detailed electric wiring and water piping, please
contact authorized installer.
Some installation scenes are presented for example. As these scenes are conceptual figures,
installer should optimize the installation scene according to the installation conditions.
CASE 1: Connecting Heat Emitters for Heating and Cooling
(Under floor loop, Fan Coil Unit, and Radiator)
R
A
E/T
T
Outdoor Indoor
Floor heating loopFan coil unit
Radiator
SE/H
High Temperature Room Thermostat(Field supply)
2way valve
(Field supply)
By-pass valve(Field supply)
Low Temperature
Expansion Tank Strainer(Mesh : 1mm*1mm)
Remote Controller
E/T
Electric Heater
E/H
S
R
Air Vent
A
Typical Installation Example
Note:
• Room thermostat
- Type of thermostat and specification should be complied with chapter 6 of
installation manual.
• 2way valve
- It is important to install 2way valve to prevent dew condensation on the floor and radiator while
cooling mode.
- Type of 2way valve and specification should be complied with chapter 6 of
installation manual.
- 2way valve should be installed at the supply side of the collector.
• By-pass valve
- To secure enough water flow rate, by-pass valve should be installed at the collector.
- By-pass valve should guarantee minimum water flow rate in any case. Minimum water flow rate is
described in water pump characteristics curve.
12 Air-to-Water Heat Pump
General Information
CASE 2:
Connecting Sanitary Water Tank
R
T
Outdoor Indoor
Floor heating loopFan coil unit
Sanitary
water
tank
Hot water
City water
Radiator
A
E/T
E/H
S
High Temperature Room Thermostat(Field supply)
2way valve
(Field supply)
3way valve
(Field supply)
By-pass valve(Field supply)
Low Temperature
Expansion Tank
Air Vent
Strainer(Mesh : 1mm*1mm)
Remote Controller
E/T
Electric Heater
E/H
A
S
R
Note:
• Electric Heater
- Type of electric heater and specification
should be complied with chapter 6 of installation manual.
• Sanitary water tank
- It should be equipped with internal electric heater to generate sufficient heat energy in very cold
season.
• 3way valve
- Type of 3way valve and specification should be complied with chapter 6 of
installation manual.
Installation Manual 13
General Information
Cycle Diagram
As is Air-to-Water Heat Pump, there are two different fluids cycling inside the system :
one is refrigerant, and the other is water. The refrigerant cycle and the water cycle are shown below.
Refrigerant Cycle
Description
UNIT
Plate Heat
Exchanger
EEV
Heat Exchanger
COMPRESSOR
Accumulator
RECEIVER
COOLING
HEATING
Reversing Valve
Solenoid valve
High Pressure
Low Pressure
Switch
Switch
Th3
Th2 Th6
Th7
Th5
Th4
- Optional accessory (being sold separately)
- Not shown in diagram
- Meaning is expressed based on Cooling
mode.
- Th4 and Th5 are connected at 4 pin type
connector CN_TH3.
- Description is expressed based on Cooling
mode.
- Th6 and Th7 are connected at 4 pin type
connector CN_TH2
CN_ROOM
CN_PIPE
CN_PIPE/O
CN_TH3
CN_TH3
CN_TH2
CN_TH2
CN_LEV1 -
Remote air temperature sensor
Inlet evaporator temperature sensor
Outlet evaporator temperature sensor
Compressor-suction pipe temperature
sensor
Compressor-discharge pipe temperature
Sensor
Condenser temperature sensor
Air temperature sensor
Electronic Expansion Valve
Th1
Th2
Th3
Th4
Th5
Th6
Th7
EEV
Symbol Meaning PCB
Connector Remarks
ENGLISH
14 Air-to-Water Heat Pump
General Information
Water cycle
Sanitary water
tank is installed.
(Sanitary water tank
kit is necessary)
< Basic Installation >
Fan
Coil
Unit
Underfloor
Heating
Radiator
< Accessory >
EXP/TANK
E/HT
S/O
Val ve Strainer
Installation Manual 15
ENGLISH
General Information
Description
- Meaning is expressed based on Cooling
mode.
- TH3 and TH4 are connected at 6 pin
type connector CN_TH3.
- Operating power(1~ 230V 50Hz) of internal
water pump is supplied by the connector.
- Optional accessory. (sold separately)
- Model : PQRSTA0.
- 3rd party accessory and Field installation.
(sold separately)
- Generating and storing sanitary hot water by
AWHP or built-in electric heater.
- 3rd party accessory and Field installation.
(usually built-in at W/TANK)
- Supplying additional water heating capacity.
- 3rd party accessory and Field installation.
(sold separately)
- SPDT type 3way valve is supported.
- Field installation.
- Field installation.
CN_PIPE/OUT
CN_PIPE
CN_TH3
CN_FLOW1
CN_W/PUMP(A)
CN_ROOM
CN_REMO
(no connector)
CN_B/HEAT(A)
CN_3WAY(A)
(no connector)
(no connector)
CN_TH4
Refrigerant temperature sensor.
(Gas side)
Refrigerant temperature sensor.
(Liquid side)
Entering Water temperature sensor.
Leaving water temperature sensor.
Flow Switch.
Internal Water Pump.
Remote Air temperature sensor.
Remote Controller.
Sanitary Water Tank.
Electric Heater.
- Flow control for water which is leaving from
unit.
- Flow direction switching between under-
floor and water tank.
Water to be heated by unit and B/HT
of W/TANK.
Water supplied to end-user.
W/TANK water temperature sensor.
TH1
TH2
TH3
TH4
F/S
W_PUMP1
TH8
CTR/PNL
S/O Valve Shut-Off Valve. (no connector)
W/TANK
B/HT
3WAY V/V_1
CITY WATER
SHOWER
TH6
Category Symbol Meaning PCB Connector Remarks
Unit
Water
Heating
- TH6 is a part of sanitary water tank kit.
(Model:PHLTA)
To drain or to block water when pipe
connecting.
Filtering and stacking particles inside
circulating water.
Strainer Strainer. (no connector)
16 Air-to-Water Heat Pump
General Information
Parts and Dimensions
Model : CHBW146A1
CHBW126A1
CHBW096A1
5
6
8
10
9
7
4
2
1
3
4-holes for anchor bolts
Description
No Name Remarks
1 Entering Water Pipe Male PT 1 inch
2 Leaving Water Pipe Male PT 1 inch
3 Strainer Filtering and stacking particles inside circulating water
4 Top Cover -
5 Control Box PCB and terminal blocks
6 Plate Heat Exchanger Heat exchange between refrigerant and water
7 Water Pump -
8 Pressure Gage Indicates circulating water pressure
9 Safety Valve Open at water pressure 3 bar
10 Compressor -
Installation Manual 17
ENGLISH
General Information
Control Box
Model : CHBW146A1
CHBW126A1
CHBW096A1
2
1
3
4
5
Description
No Name Remarks
1 Inverter PCB Assembly Inverter PCB.
2 Main PCB Assembly 1 This PCB controls the functioning of the unit.
3 Main PCB Assembly 2 This PCB controls the cycle parts of the unit.
4 Terminal Block The terminal blocks allow easy connection of field wiring.
5 Cord Clamp -
Control Parts
18 Air-to-Water Heat Pump
General Information
Remote Controller
1
0
2
3
4
1
2
3
4
5
6
7
8
9
10
11
12
13
14
No Name
1 Display
2 Change Temperature Button
3 Silent Mode On / Off Button
4 Operation Mode Selection Button
5 Water Heating Enable / Disable Button
6 ESC Button
7 Direction Button (Up, Down, Left, Right)
8 Power Button
9 Function Setting Button
10 Temperature Setting Mode Button
11 Temperature View Mode Button
12 Programming Button
13 Set / Clear button
14 Pressure gage
※ Some functions may not be operated and displayed
depending on the model.
Installation Manual 19
ENGLISH
General Information
Wiring Diagram : Including Field Wiring
(Model : CHBW096A1, CHBW126A1, CHBW146A1)
20 Air-to-Water Heat Pump
Installation of Unit
4. Installation of Unit
is installed outside to exchange heat with ambient air. Therefore, it is important to
secure proper space around the unit and care for specific external conditions.
This chapter presents a guide to install the unit and what to do when installed around seaside.
General Considerations
• If a sunroof is built over the unit to prevent
direct sunlight or rain exposure, make sure that
heat radiation from the heat exchanger is not
restricted.
• Ensure that the spaces indicated by arrows
around front, back and side of the unit.
• Do not place animals and plants in the path of
the warm air.
• Take the weight of the unit into account and
select a place where noise and vibration are
minimum.
• Select a place so that the warm air and noise
from the unit do not disturb neighbors.
• The surface of the ground or the structure must
be strong enough to bear the weight of the unit.
Transport
The unit should be transported to the final
installation site on a wooden pallet. The unit
should be transported by means of a lift truck or
dray.
Conditions where Unit is Installed
More than
300mm
Fence or
obstacles
More than 700mm
More than 600mm
*Minimum
*Minimum
300mm
300mm
*Minimum
300mm
Sunroof
1. During transport, the unit must not be tilted more than 45°.
2. The unit must not be impacted.
3. The unit more than 30kg should be transported by two carriers or more.
(Carriers must wear safety protectors.)
4. When the unit is transported by lift truck or dray, be careful not to fall.
5. Be sure to dispose the scraps of vinyl bag, children can be in danger of suffocation.
* : Please secure the space to install the shut-off
valve and strainer.
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