LG HU031 INSTALLATION MANUAL
P/NO : MFL68681802
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
Original instruction
ENGLISH
ITALIANO
ESPAÑOL
FRANÇAIS
DEUTSCH
ΕΛΛΗΝΙΚΆ
ČEŠTINA
NEDERLANDS
POLSKI
LIMBA ROMÂNĂ
Air-to-Water Heat Pump Installation Manual
TABLE OF CONTENTS
PREFACE.............................................................................................................................5
1. SAFETY PRECAUTION...................................................................................................6
WARNING.....................................................................................................................................6
INSTALLATION WARNING .....................................................................................................6
OPERATION WARNING .........................................................................................................7
CAUTION ......................................................................................................................................9
INSTALLATION CAUTION ......................................................................................................9
OPERATION CAUTION ..........................................................................................................9
2. INSTALLATION PART ...................................................................................................10
INDOOR UNIT BOX....................................................................................................................10
OUTDOOR UNIT BOX................................................................................................................10
3. GENERAL INFORMATION ............................................................................................11
MODEL INFORMATION ..............................................................................................................11
TYPICAL INSTALLATION EXAMPLE .........................................................................................13
CASE 1..................................................................................................................................13
CASE 2..................................................................................................................................14
CASE 3 .................................................................................................................................15
CYCLE DIAGRAM ......................................................................................................................16
WATER CYCLE .....................................................................................................................17
PARTS AND DIMENSIONS ........................................................................................................19
INDOOR UNIT (EXTERNAL) ................................................................................................19
INDOOR UNIT (INTERNAL)..................................................................................................20
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 AND OUTDOOR (INCL. FIELD WIRING)............................26
4. INSTALLATION OF OUTDOOR UNIT ...........................................................................28
CONDITIONS WHERE OUTDOOR UNIT IS INSTALLED..........................................................28
DRILL A HOLE IN THE WALL.....................................................................................................28
INSTALLATION AT SEASIDE......................................................................................................29
SEASONAL WIND AND CAUTIONS IN WINTER.......................................................................29
2 Air-to-Water Heat Pump
5. INSTALLATION OF INDOOR UNIT ...............................................................................30
CONDITIONS WHERE INDOOR UNIT IS INSTALLED..............................................................30
GENERAL CONSIDERATIONS ............................................................................................30
SERVICE SPACE..................................................................................................................30
MOUNTING TO WALL ..........................................................................................................31
WATER VOLUME AND WATER PUMP CAPACITY..............................................................32
WATER VOLUME AND EXPANSION VESSEL PRESSURE................................................33
WATER QUALITY .................................................................................................................34
FROST PROTECTION..........................................................................................................34
6. PIPING AND WIRING FOR OUTDOOR UNIT ...............................................................35
REFRIGERANT PIPING .............................................................................................................35
CONSTRAINTS IN PIPE LENGTH AND ELEVATION ..........................................................35
PREPARATION FOR PIPING ...............................................................................................36
CONNECTING PIPE TO INDOOR UNIT ..............................................................................37
CONNECTING PIPE TO OUTDOOR UNIT ..........................................................................37
ELECTRICAL WIRING................................................................................................................40
WIRE SPECIFICATION.........................................................................................................40
CIRCUIT BREAKER SPECIFICATION .................................................................................41
WIRING PROCEDURE FOR POWER CABLE AND CONNECTING CABLE.......................42
FINALIZING ................................................................................................................................43
PIPE FORMING ....................................................................................................................43
LEAKAGE TEST AND EVACUATION .........................................................................................44
PREPARATION .....................................................................................................................44
LEAKAGE TEST....................................................................................................................44
EVACUATION........................................................................................................................45
7. PIPING AND WIRING FOR INDOOR UNIT ...................................................................46
WATER PIPING AND WATER CIRCUIT CONNECTION............................................................46
GENERAL CONSIDERATIONS ............................................................................................46
WATER PIPING AND WATER CIRCUIT CONNECTION......................................................46
WATER CHARGING .............................................................................................................48
PIPE INSULATION ................................................................................................................48
ELECTRICAL WIRING................................................................................................................49
GENERAL CONSIDERATION...............................................................................................49
TERMINAL BLOCK INFORMATION .....................................................................................50
CONNECTING WITH OUTDOOR UNIT ...............................................................................52
ELECTRIC HEATER WIRING ...............................................................................................52
8. ACCESSORIES INSTALLATION ...................................................................................53
ACCESSORIES SUPPORTED BY LG Electronics...............................................................53
ACCESSORIES SUPPORTED BY 3rd PARTY COMPANIES ..............................................53
BEFORE INSTALLATION ...........................................................................................................54
THERMOSTAT ............................................................................................................................54
Installation Manual 3
ENGLISH
GENERAL INFORMATION ...................................................................................................54
HOW TO WIRE THERMOSTAT ............................................................................................55
FINAL CHECK.......................................................................................................................56
SANITARY WATER TANK AND SANITARY WATER TANK KIT/SOLAR THERMAL KIT............57
GENERAL INFORMATION ...................................................................................................57
HOW TO INSTALL SANITARY WATER TANK ......................................................................58
HOW TO INSTALL SANITARY WATER TANK KIT................................................................59
HOW TO WIRE SANITARY WATER TANK HEATER............................................................61
HOW TO INSTALL SOLAR THERMAL KIT...........................................................................62
DRY CONTACT...........................................................................................................................62
REMOTE TEMPERATURE SENSOR.........................................................................................62
3WAY VALVE ..............................................................................................................................63
HOW TO WIRE 3WAY VALVE...............................................................................................63
FINAL CHECK.......................................................................................................................63
2WAY VALVE ..............................................................................................................................64
GENERAL INFORMATION ...................................................................................................64
HOW TO WIRE 2WAY VALVE...............................................................................................64
FINAL CHECK.......................................................................................................................64
CONDITIONS IF ACCESSORIES ARE INSTALLED ..................................................................65
THERMOSTAT ......................................................................................................................65
REMOTE AIR TEMPERATURE SENSOR ............................................................................65
SANITARY WATER TANK AND SANITARY WATER TANK KIT / SOLAR THERMAL KIT....66
2WAY(3WAY) VALVE ............................................................................................................68
9. SYSTEM SET-UP...........................................................................................................69
DIP SWITCH SETTING...............................................................................................................69
GENERAL INFORMATION ...................................................................................................69
DIP SWITCH INFORMATION ...............................................................................................70
CONTROL PANEL SETTING......................................................................................................73
HOW TO ENTER INSTALLER SETTING MODE ..................................................................73
SUMMARY ............................................................................................................................74
COMMON SETTING .............................................................................................................80
TEMPERATURE RANGE SETTING .....................................................................................81
TEMPERATURE CONTROL PARAMETER SETTING .........................................................83
10. CHECK POINTS, MAINTENANCE AND TROUBLESHOOTING................................88
CHECK LIST BEFORE STARTING OPERATION .....................................................................88
MAINTENANCE.........................................................................................................................89
TEST RUN.................................................................................................................................89
CHECK BEFORE TEST RUN ..............................................................................................89
TROUBLESHOOTING...............................................................................................................90
TROUBLESHOOTING FOR PROBLEM WHILE OPERATION.............................................90
TROUBLESHOOTING FOR ERROR CODE ........................................................................91
AIRBORNE NOISE EMISSION .................................................................................................92
LIMITING CONCENTRATION ...................................................................................................92
4 Air-to-Water Heat Pump
Preface
Installation Manual 5
ENGLISH
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.
• Items Inside product Box
• Before starting installation, please make it sure that all parts are found
inside the product box.
• 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 4
Chapter 3
Chapter 5
Chapter 6
Chapter 7
Chapter 8
Chapter 9
Chapter 10
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
Safety Precautions
6 Air-to-Water Heat Pump
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
For antifreeze, always
contact the dealer or an
authorized service center.
•
Almost the antifreeze is a toxic
product.
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
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.
Safety Precautions
Installation Manual 7
ENGLISH
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 install the water pipe
system as Open loop type.
• It may cause failure of unit.
Use a vacuum pump or inert
(nitrogen) gas when doing
leakage test or purging air. Do
not compress air or oxygen and
do not use flammable gases.
• There is the risk of death,
injury, fire or explosion.
Make sure the connected
condition of connector in
product after maintenance.
• Otherwise, it may cause
product damage.
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.
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.
•
It may cause damage to the unit.
When flammable gas leaks, turn off
the gas and open a window for
ventilation before turning the unit on.
•
There is risk of explosion or fire.
Do not touch leaked
refrigerant directly.
• There is risk of frostbite.
Do not touch any electric
part with wet hands. you
should be power off before
touching electric part.
• There is risk of electric shock
or fire.
Do not touch refrigerant pipe
and water pipe or any internal
parts while the unit is operating
or immediately after operation.
• There is risk of burns or
frostbite, personal injury.
If you touch the pipe or
internal parts, you should be
wear protection or wait time to
return to normal temperature.
•
Otherwise , it may cause burns
or frostbite, personal injury.
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.
■ Operation
8 Air-to-Water Heat Pump
Safety Precautions
Turn the main power on 6
hours ago before the product
starting operation.
• Otherwise, it may cause
compressor damage.
Do not touch electric parts
for 10 minutes after main
power off.
• There is risk of physical injury,
electric shock.
The inside heater of product
may operate during stop
mode. It is intended to
protect the product.
Be careful that some part of
the control box are hot.
• There is risk of physical injury or
burns.
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.
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.
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 9
ENGLISH
Safety Precautions
■ Installation
Always check for gas
(refrigerant) leakage after
installation or repair of unit.
• Low refrigerant levels may cause
failure of unit.
Keep level even when
installing the unit.
• To avoid vibration or water
leakage.
Use two or more people to
lift and transport the unit.
• Avoid personal injury.
■ Operation
Do not use the unit for special
purposes, such as preserving
foods, works of art, etc.
• There is risk of damage or loss of
property.
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.
Use a firm stool or ladder when cleaning or
maintaining the unit.
• Be careful and avoid personal injury.
Do not turn on the breaker or power under
condition that front panel cabinet, top cover,
control box cover are removed or opened.
• Otherwise it may cause fire, electric shock,
explosion or death
10 Air-to-Water Heat Pump
2. Installation Part
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
Outdoor Unit
U4
Chassis
(Product heating capacity :
5kW, 7kW, 9kW)
Item Image Quantity
OUTDOOR UNIT BOX
1
1
1
Outdoor Unit
U3 Chassis
(Product heating capacity :
12kW, 14kW, 16kW)
Outdoor Unit
UE Chassis
(Product heating capacity : 3kW)
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 : (For High Temperature)
Hydro Kit
P/NO : MFL67212802
OWNER’S MANUAL
AIR CONDITIONER
Please read this manual carefully before operating
your set and retain it for future reference.
P/NO : MFL67212703
www.lg.com
TYPE :
Hydro Kit (For High Temperature)
Installation Part
Installation Manual 11
ENGLISH
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.
Model number nomenclature
A H
A H N W 0 9 A 0 6 A 2
—
W 0 9 6 A 2
Series Number
Function
A : General heating heat pump
H : Domestic Hot heating only
T : High temperature heating heat pump
Electrical ratings
6 : 1 phase 220-240V AC 50Hz 8 : 3 phase 380-415V AC 50Hz
Heating Capacity (kW)
03 : 3kW 05 : 5kW 07 : 7kW 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
1. Temperature control
2. Pressure control
Series Number
Function
A : General heating heat pump
H : Domestic Hot heating only
T : High temperature heating heat pump
Heater Capacity (kW)
04 : 4kW 06 : 6kW 09 : 9kW
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)
03 : 3kW 09 : 9kW 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
1. Temperature control
2. Pressure control
12 Air-to-Water Heat Pump
General 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)
*
*
3 : All appliances were tested at atmospheric pressure.
Model name and related information
Model Name
Built-In Electric
Heater(kW)
Power Source
(Electric Heater)
Capacity
Power Source
(Unit)
Outdoor Unit Indoor Unit Heating(kW)*1Cooling(kW)
*1
AHUW036A2 AHNW03604A2 4(2+2) 220-240 V ~50Hz 3 3
220-240 V ~50Hz
AHUW056A2 AHNW09604A2 4(2+2) 220-240V ~50Hz 5 5
AHUW076A2 AHNW09604A2 4(2+2) 220-240V ~50Hz 7 7
AHUW096A2 AHNW09604A2 4(2+2) 220-240V ~50Hz 9 9
AHUW126A2 AHNW16606A2 6(3+3) 220-240V ~50Hz 12 12
AHUW146A2 AHNW16606A2 6(3+3) 220-240V ~50Hz 14 14
AHUW166A2 AHNW16606A2 6(3+3) 220-240V ~50Hz 16 16
AHUW128A2 AHNW16806A2 6(2+2+2) 380-415V ~50Hz 12 12
380-415V ~50Hz AHUW148A2 AHNW16806A2 6(2+2+2) 380-415V ~50Hz 14 14
AHUW168A2 AHNW16806A2 6(2+2+2) 380-415V ~50Hz 16 16
General Information
Installation Manual 13
ENGLISH
If is installed with pre-existing boiler, the boiler and THERMA V should not be
operated together. If entering water temperature of is above 55°C, the system will
stop operation to prevent mechanical damage of the product. 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)
Outdoor Indoor
Outdoor Unit
Indoor Unit
Floor heating loopFan coil unit
Radiator
High Temperature Room Thermostat(Field supply)
2way valve
(Field supply)
By-pass valve(Field supply)
Low Temperature
Shut-off valve
Typical Installation Example
Note:
• Room thermostat
- Type of thermostat and specification should be complied with chapter 4 and chapter 7 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 control valve and specification should be complied with chapter 4 and chapter 7 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.
CASE 2:
Connecting Sanitary Water Tank
Outdoor Indoor
Outdoor Unit
Indoor Unit
Floor heating loopFan coil unit
Sanitary
water
tank
Hot water
City water
Radiator
High Temperature
Room Thermostat(Field supply)
2way valve
(Field supply)
3way valve
(Field supply)
By-pass valve(Field supply)
Low Temperature
Shut-off valve
Note:
• 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 4 and chapter 7 of
installation manual.
General Information
14 Air-to-Water Heat Pump
General Information
CASE 3: Connecting Solar thermal system
Solar heat source
Outdoor Indoor
Outdoor Unit
Indoor Unit
Floor heating loopFan coil unit
Sanitary
water
tank
Hot water
City water
Radiator
High Temperature
Room Thermostat(Field supply)
2way valve
(Field supply)
3way valve
(Field supply)
By-pass valve(Field supply)
Low Temperature
Shut-off valve
Pump(Field supply)
Note:
• Sanitary water tank
- It should have additional indirect heat exchanger to utilize heat energy by solar thermal system.
• Pump
- Maximum power consumption of pump should be less than 0.25kW.
Installation Manual 15
ENGLISH
16 Air-to-Water Heat Pump
Cycle Diagram
Description
General Information
Category Symbol Meaning
PCB
Connector
Remarks
Indoor
Unit
Th1 Remote air temperature sensor CN_ROOM
- Optional accessory (being sold separately)
- Not shown in diagram
Th2 Inlet evaporator temperature sensor CN_PIPE
- Meaning is expressed based on Cooling
mode.
Th3 Outlet evaporator temperature sensor CN_PIPE/O
Outdoor
Unit
Th4 Compressor-suction pipe temperature sensor CN_TH3
- Th4 and Th5 are connected at 4 pin type
connector CN_TH3.
Th5 Compressor-discharge pipe temperature sensor CN_TH3
Th6 Condenser temperature sensor CN_TH2
- Description is expressed based on Cooling
mode
- Th6 and Th7 are connected at 4 pin type
connector CN_TH2
Th7 Outdoor air temperature sensor CN_TH2
Th8*1Condenser middle temperature sensor CN_TH3
- Th8 is connected at 4 pin type connector
CN_TH3
EEV Electronic Expansion Valve CN_LEV1
INDOOR UNIT OUTDOOR UNIT
LIQUID SIDE
Service Valve
GAS SIDE
Service Valve
Indoor Unit
Plate Heat
Exchanger
Th1
(Accessories)
Th2
Th3
3-Way
3-Way
Th4
Accumulator
EEV
Pressure
Sensor
COMPRESSOR
Th6
Th7
Outdoor Unit
Heat Exchanger
Reversing Valve
Th5
Th8
COOLING
HEATING
General Information
Water cycle
Sanitary water tan
k is installed
(Sanitary water tan
k kit is necessary)
Solar thermal syst
em is connected
(Solar thermal kit i
s necessary)
Basic installation
(IDU + ODU)
Solar
Thermal
Componets
Fan
Coil
Unit
Underfloor
Heating
Radiator
Installation Manual 17
ENGLISH
General Information
Description
18 Air-to-Water Heat Pump
Category Symbol Meaning PCB Connector Remarks
Indoor Unit
E/HT
W_PUMP1
EXP/TANK
CTR/PNL
2WAY V/V_1
W/TANK
B/HT
Water
Heating
3WAY V/V_1
CITY WATER
SHOWER
3WAY V/V_2
Solar
Heating
W_PUMP/2
SOLAR THER-
MAL SYSTEM
Refrigerant temperature sensor
TH1
(Gas side)
Refrigerant temperature sensor
TH2
(Liquid side)
TH3
Entering Water temperature sensor
TH4
Interim Water temperature sensor
TH5
Leaving Water temperature sensor
F/S
Flow Switch
Electric Heater
Internal Water Pump
Expansion Tank
Remote Air temperature sensor
TH8
Control Panel (or
‘Remote Controller’)
To control water flow for Fan Coil Unit
Sanitary Water Tank
Electric Heater
- Flow control for water which is leaving from
indoor unit.
- Flow direction switching between underfloor and water tank
Water to be heated by Indoor unit and B/HT
of W/TANK
Water supplied to end-user
TH6
W/TANK water temperature sensor
TH7
Solar-heated water temperature sensor
- Flow control for water which is heated and
circulated by SOLAR THERMAL SYSTEM.
- Flow direction switching between SOLAR
THERMAL SYSTEM and W/TANK
External Water Pump
- This system can include following components : Solar panel, Sensors, Thermostats,
Interim heat exchanger, Water pump, etc.
- To utilized hot water heated by SOLAR
THERMAL SYSTEM, end-user must by LG
AWHP Solar-Kit.
CN_PIPE/OUT
CN_PIPE
CN_TH3
CN_FLOW1
CN_E/HEAT(A)
CN_E/HEAT(B)
CN_W/PUMP(A)
(no connector)
CN_ROOM
CN_REMO
CN_2WAY(A)
(no connector)
CN_B/HEAT(A)
CN_3WAY(A)
(no connector)
(no connector)
CN_TH4
CN_3WAY(B)
CN_W/PUMP(B)
(no connector)
- Meaning is expressed based on Cooling
mode.
- TH3, TH4, and TH5 are connected at 6 pin
type connector CN_TH3.
- Heating capacity is divided into two level :
partial capacity by E/HEAT(A) and full
capacity by E/HEAT(A) + E/HEAT(B).
- Operating power(230V AC 50Hz) of
E/HEAT(A) and E/HEAT(B) are supplied by
external power source via relay connector
and ELB.
- Operating power(230V AC 50Hz) of internal
water pump is supplied by the connector.
- Absorb volume change of heated water,
- Optional accessory (sold separately)
- Model : PQRSTA0
- Pre built-in at indoor unit
rd
- 3
party accessory and Field installation
(sold separately)
- 2 wire NO or NC type 2way valve is
supported.
rd
- 3
party accessory and Field installation
(sold separately)
- Generating and storing sanitary hot water by
AWHP or built-in electric heater-
rd
- 3
party accessory and Field installation
(usually built-in at W/TANK)
- Supplying additional water heating capacity.
rd
- 3
party accessory and Field installation
(sold separately)
- SPDT type 3way valve is supported.
- Field installation
- Field installation
- TH6 and TH7 are connected at 4 pin type
connector CN_TH4.
- TH6 is a part of sanitary water tank kit.
(Model:PHLTA)
- TH7 is a part of solar thermal kit
(Model:PHLLA)
rd
- 3
party accessory and Field installation
(sold separately)
- SPDT type 3way valve is supported.
rd
- 3
party accessory and Field installation
(sold separately)
-
If water pump of SOLAR THERMAL SYSTEM
is incapableof circulation,external water pump
can be used.
- 3rd party accessory and Field installation
(sold separately)
General Information
Parts and Dimensions
Indoor unit(External)
Description
(unit:mm)
Installation Manual 19
ENGLISH
490
850
315
315.3
474
No Name Remarks
1 Door Control panel is shown after this door is opened.
2 Handle Used to cover or uncover the front case
General Information
Description
Indoor unit(Internal)
No Name Remarks
1 Refrigerant Pipe Ø15.88mm(5~16kW), Ø12.7mm (3kW)
2 Refrigerant Pipe Ø9.52mm(5~16kW), Ø6.35mm (3kW)
3 Entering Water Pipe Male PT 1 inch
4 Leaving Water Pipe Male PT 1 inch
5 Control Panel Built-in Remote Controller
6 Water Pump Max Head 7.5 / 6.5 m
7 Safety Valve Open at water pressure 3 bar
8
8'
T
Thermal switch
hermal switch
Cut-off power input to electric heater at 90 C (manual return at 55C)
(1Ø Electric Heater is applied)
Cut-off power input to electric heater at 90 C (manual return at 55 C)
(3Ø Electric Heater is applied)
9 Control Box PCB and terminal blocks
Minimum operation range at 12 LPM.(5~9kW)
Minimum operation range at 15 LPM.(12~16kW)
※ 3kW IDU has not a flow switch.
11 Plate Heat Exchanger Heat exchange between refrigerant and water
12 Pressure Gage Indicates circulating water pressure
13 Expansion Tank Absorbing Volume change of heated water
14 Air Vent Air purging when Charging water
15 Electric Heater
Please refer to the below Page
‘Model name and related information’
16
17
Strainer
Shut-off valve
18
Carrying handle
Filtering and stacking particles inside circulating water
To drain or to block water when pipe connecting
To carry the product
Flow Switch10
(unit:mm)
20 Air-to-Water Heat Pump
848
474
305
66
52
109
474
39
75.11008176
General Information
Outdoor unit(External)
Description
Product Heating
Capacity :
12kW,14kW,16kW
U3 Chassis
(unit:mm)
Installation Manual 21
ENGLISH
Supporter
No Name
1
Liquid-side Service Valve
2
Gas-side Service Valve
3
Air discharge Grill
490
Description
General Information
Product Heating
Capacity : 3kW
UE Chasis
(unit:mm)
22 Air-to-Water Heat Pump
No Name
1
Liquid-side Service Valve
2
Gas-side Service Valve
3
Air discharge Grill
General Information
Description
Product Heating
Capacity : 5kW,7kW,9kW
U4 Chassis
(unit:mm)
Installation Manual 23
ENGLISH
Supporter
No Name
1
Liquid-side Service Valve
2
Gas-side Service Valve
3
Air discharge Grill
General Information
Control Parts
Control Box : Indoor Unit
Description
1Ø Electric Heater 3Ø Electric Heater
24 Air-to-Water Heat Pump
8 8
1
7
No Name Remarks
1
Down transformer
2
Terminal blocks
3
Unit ELB
Water tank heater
4
ELB(optional)
5
Magnetic switch
Magnetic switch
6
(optional for water tank heater)
7
Main PCB
8
Dry ContactSupporter
9
Magnet Contact
10
Unit MCCB
Water tank heater
11
MCCB(optional)
Voltage down(230V AC)
The terminal blocks allow easy connection of field wiring
The ELB protects the unit against overload or short circuit
The ELB protects the water tank heater in sanitary water tank
against overload or short circuit
The main PCB(Printed Circuit Board) controls the functioning of the unit
Supporter to install Dry Contact(sold separately)
The MCCB protects the unit against overload
The MCCB protects the water tank heater in sanitary water tank
against overload
9
7
11
9
6
2
10
9
2
-
-
General Information
Control Panel
WATER
TEMP
OPER
HEATING
MODE
Wiring Diagram : Indoor Unit
- Refer to the wiring diagram inside the control box.
Circuit Diagram : Indoor Unit
- Refer to the circuit diagram inside the front panel.
Wiring Diagram : Outdoor Unit
- Refer to the attached wiring diagram in the outdoor unit.
Installation Manual 25
ENGLISH
No Name
1 Display
2 Change Temperature Button
3 Water Heating Enable / Disable Button
4 Power Button
5 Operation Mode Selection Button
6 Silent Mode On / Off Button
7 Temperature Setting Mode Button
8 Temperature View Mode Button
9 Function Setting Button
10 Programming Button
11 Direction Button (Up, Down, Left, Right)
12 Set / Clear button
13 ESC Button
14 Pressure gage
ڸ
ۀ
ڿ
ھ
ڽ
ہ
ۂ
ۃ
ۄ
TEMP
WATER
HEATING
OPER
MODE
ڹ
ں
ڻ
ڼ
14
2
3
1
0
4
General Information
Wiring Diagram : Indoor and Outdoor Unit(Including Field wiring)
(Indoor : Electric Heater 1Ø, Outdoor : 1Ø)
26 Air-to-Water Heat Pump
MAGNETIC CONTACT
1~
50Hz
230V
M/C
M/C
M/C M/C
General Information
Wiring Diagram : Indoor and Outdoor Unit(Including Field wiring)
(Indoor : Electric Heater 3Ø 380-415V, Outdoor : 3Ø)
Installation Manual 27
ENGLISH
1~
50Hz
220V
3~
50Hz
380V
M/C
MCCB
3
MCCB
M/C
M/C
M/C
Installation of Outdoor Unit
4. Installation of Outdoor Unit
The outdoor unit of is installed outside to exchange heat with ambient air. Therefore, it
is important to secure proper space around the outdoor unit and care for specific external conditions.
This chapter presents a guide to install the outdoor unit, make a route to connect with the indoor, and
what to do when installed around seaside.
• 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 outdoor 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 outdoor unit do not disturb neighbors.
Conditions where Outdoor Unit is Installed
300
Fence or
obstacles
700
300
600
Sunroof
• If making a hole to the wall is required to
connect pipe between the indoor unit and the
outdoor unit, please follow below descriptions.
- Drill the piping hole with a ø70mm hole core
drill.
- Piping hole should be slightly slant to the
outdoor side to prevent raindrop into indoor
side.
Drill a Hole in the Wall
Minimum service space (unit:mm)
28 Air-to-Water Heat Pump
Wall
Indoor Outdoor
5~7mm
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