LG HM141M INSTALLATION MANUAL

INSTALLATION MANUAL

AIR-TO-WATER HEAT PUMP

PORTUGUÊS

ENGLISH

ITALIANO

MAGYAR

БЪЛГАРСКИ

ESPAÑOL

FRANÇAIS

SRPSKI

DEUTSCH

HRVATSKI

ΕΛΛΗΝΙΚΆ

SLOVENŠČINA

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.

Original instruction

[EU Representative]

[

Manufacturer

MFL68026607

Rev.08_042221

LG Electronics Inc. EU Representative : LG Electronics European Shared Service Center B.V. Krijgsman 1, 1186 DM Amstelveen, The Netherlands

] LG Electronics Inc. Changwon 2nd factory 84, Wanam-ro, Seongsan-gu, Changwon-si, Gyeongsangnam-do, KOREA

www.lg.com

ČEŠTINA

DANSK

NEDERLANDS

POLSKI

LIMBA ROMÂNĂ

TABLE OF CONTENTS

ENGLISH

TABLE OF CONTENTS

4 PREFACE 5 SAFETY INSTRUCTIONS 12 INSTALLATION PART 13 GENERAL INFORMATION

13 Model Information 14 Model name and related information 15 Parts and Dimensions 18 Control Parts 20 Remote Controller 21 Typical Installation Example 27 Cycle Diagram 29 Water cycle

31 INSTALLATION

31 Transporting the Unit 32 Installation places 33 Seasonal Wind and Cautions in Winter 34 Foundation for Installation 35 Electrical Wiring 43 Wiring of main power supply and equipment capacity 44 Water Piping and Water Circuit Connection 46 Water Charging 46 Pipe Insulation 47 Water pump Capacity 47 Pressure Drop 48 Performance curve 49 Water Quality 49 Frost protection 50 Water Volume and Expansion Vessel Pressure

51 ACCESSORIES INSTALLATION

51 Accessories supported by LG Electronics 52 Accessories supported by 3rd party Companies 53 Before Installation 53 Thermostat 56 2nd Circuit 59 3rd Party Boiler

60 3rd Party Controller

61 Meter Interface 62 Central Controller 63 Remote Controller

66 DHW Tank

69 DHW Tank Kit 70 Solar Thermal Kit 71 Dry Contact 73 External Controller - Setting up programmable digital input operation 74 Remote Temperature Sensor 76 Solar pump 77 External pump 78 Wi-ﬁ Modem 79 Energy State 80 Digital Input for energy saving (ESS, Smart Grid) 81 2Way Valve 82 3Way Valve(A) 83 3Way Valve(B) 84 Electric Heater 88 Final check

89 CONFIGURATION

89 DIP Switch Setting

95 SERVICE SETTING

95 How to enter service setting 95 Service setting 96 Service Contact 97 Model Information 98 RMC Version lnformation 99 Open Source License

100 INSTALLER SETTING

100 How to enter installer setting 101 Installer setting 103 3 Minutes Delay 104 Select Temperature Sensor 105 Dry Contact Mode 106 Central Control Address 107 Pump test run 108 Air cooling set temp 109 Water cooling set temp 110 Air heating set temp 111 Water heating set temp 112 DHW set temp 113 Screed drying 115 Heater on temperature 117 Water supply off temp. during cooling 119 Tank disinfection setting 1, 2 120 Tank setting 1 121 Tank setting 2 123 Heater priority 124 DHW time setting 125 TH on/off Variable, heating air 126 TH on/off Variable, heating water 127 TH on/off Variable, cooling air 128 TH on/off Variable, cooling water 129 Heating temp. setting 130 Cooling temp. setting 131 Pump setting in heating 132 Pump setting. in cooling 133 Forced operation 134 CN_CC 135 Pump Capacity 136 Seasonal auto temp 138 Modbus Address 139 CN_EXT 140 Anti-freezing Temperature 141 Add Zone 142 Use External Pump 143 3rd Party Boiler 144 Meter Interface 145 Pump Prerun/Overrun 146 Solar Thermal System 148 Energy state 149 Data logging 150 Password Initialization 151 Overview settings

153 COMMISSIONING

153 Check List before Starting Operation 154 Starting Operation 155 Starting Operation ﬂow chart 155 Airborne Noise Emission 156 Vacuum & Charge of Refrigerant 158 How to drain remaining water in the product 159 Troubleshooting

TABLE OF CONTENTS

ENGLISH

PREFACE

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.

Chapters Contents

Chapter 1

• Warning and Caution concerned with safety.

• This chapter is directly related with human safety. We strongly recommend reading this chapter carefully.

Chapter 2

Chapter 3

Chapter 4

Chapter 5

Chapter 6

Chapter 7

Chapter 8

• 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 unit.

• Installation location, constraints on installation site, etc

• Electrical wiring at the unit.

• System set-up and configuration.

• Information about water pump

• Information about supported accessories

• Specification, Constraints, and wiring are described.

• Before purchasing accessories, please find supported specification to buy proper one.

• Information about DIP switch setting

• check and input service contact

• information about model and open source license

• Information on the installer setup mode that sets the detailed functions of the remote control

• Incorrectly setting the installer setup mode may result in product failure, personal injury, or property loss, so this chapter requires a deeper understanding

Chapter 9

• Check points before starting operation are explained.

• Troubleshooting, maintenance, and error code list are presented to correct problems

SAFETY INSTRUCTIONS

ENGLISH

Read the precautions in this manual carefully before operating the unit.

This symbol indicates that the Operation Manual should be read carefully.

The following safety guidelines are intended to prevent unforeseen risks or damage from unsafe or incorrect operation of the appliance. The guidelines are separated into ‘WARNING’ and ‘CAUTION’ as described below.

This symbol is displayed to indicate matters and

operations that can cause risk. Read the part with this symbol carefully and follow the instructions in order to avoid risk.

WARNING

This indicates that the failure to follow the instructions can cause serious injury or death.

This appliance is filled with flammable refrigerant (for R32)

This symbol indicates that a service personnel should be handling this equipment with reference to the Installation Manual.

CAUTION

This indicates that the failure to follow the instructions can cause the minor injury or damage to the product.

WARNING

Installation

• 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.

SAFETY INSTRUCTIONS

ENGLISH

• 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

• 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.

• 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 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 leaked refrigerant directly.

- There is risk of frostbite.

SAFETY INSTRUCTIONS

• Compliance with national gas regulations shall be observed.

• Refrigerant tubing shall be protected or enclosed to avoid damage.

• The installation of pipe-work shall be kept to a minimum.

• A brazed, welded, or mechanical connection shall be made before opening the valves to permit refrigerant to flow between the refrigerating system parts. A vacuum valve shall be provided to evacuate the interconnecting pipe and/or any uncharged refrigerating system part.

• Any person who is involved with working on or breaking into a refrigerant circuit should hold a current valid certificate from an industry-accredited assessment authority, which authorizes their competence to handle refrigerants safely in accordance with an industry recognized assessment specification.

• Pipe-work shall be protected from physical damage and shall not be installed in an unventilated space, if that space is smaller than

1) The minimum floor area : 49.4 m

2) The maximum refrigerant charge amount : 2.4 kg

• Do not use means to accelerate the defrosting process or to clean, other than those recommended by the manufacturer.

• Do not pierce or burn.

• Be aware that refrigerants may not contain an odour.

• Dismantling the unit, treatment of the refrigerant oil and eventual parts should be done in accordance with local and national standards.

• Ducts connected to an appliance shall not contain an ignition source.

• Copper in contact with refrigerants shall be oxygen-free or deoxidized, for example Cu-DHP as specified in EN 12735-1 and EN 12735-2.

ENGLISH

Operation

• Take care to ensure that power cable could not be pulled out or damaged during operation.

- There is risk of fire or electric shock.

SAFETY INSTRUCTIONS

ENGLISH

• 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.

• 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.

• If strange sounds or smell 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.

• 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.

SAFETY INSTRUCTIONS

• 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.

• 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.

• The appliance shall be stored in a well-ventilated area where the room size corresponds to the room area as specified for operation.

ENGLISH

SAFETY INSTRUCTIONS

ENGLISH

•

The appliance shall be stored in a room without continuously operating open flames (for example an operating gas appliance) and ignition sources (for example an operating electric heater).

• The appliance shall be stored so as to prevent mechanical damage from occurring.

•

Servicing shall only be performed as recommended by the equipment manufacturer. Maintenance and repair requiring the assistance of other skilled personnel shall be carried out under the supervision of the person competent in the use of flammable refrigerants.

• When mechanical connectors are reused indoors, sealing parts shall be renewed. When flared joints are reused indoors, the flare part shall be re-fabricated.

• Be aware that refrigerants may not contain an odor.

• Periodic(more than once/year) cleaning of the dust or salt particles stuck on the heat exchangers by using water.

• Keep any required ventilation openings clear of obstruction.

CAUTION

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.

• Do not install the unit in potentially explosive atmospheres.

• Connect the water for filling or refilling the heating system as specified by EN 1717/EN 61770 to avoid contamination of drinking water by return flow.

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.

SAFETY INSTRUCTIONS

• 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.

• The appliance shall be disconnected from its power source during service and when replacing parts.

• Means for disconnection must be incorporated in the fixed wiring in accordance with the wiring rules.

• The Installation kit supplied with the appliance are to be used and that old Installation kit should not be reused.

•

If the supply cord is damaged, it must be replaced by the manufacturer, its service agent or similarly qualified persons in order to avoid a hazard. Installation work must be performed in accordance with the national wiring standards by authorized personnel only.

• In order to avoid a hazard due to inadvertent resetting of the thermal cut-out, this appliance must not be supplied through an external switching device, such as a timer, or connected to a circuit that is regularly switched on and off by the utility.

• This equipment shall be provided with a supply conductor complying with the national regulation.

• The instructions for service to be done by specialized personnel, mandated by the manufacturer or the authorized representative may be supplied in only one Community language which the specialized personnel understand.

•

This appliance is not intended for use by persons (including children) with reduced physical, sensory or mental capabilities or lack of experience and knowledge, unless they have been given supervision or instruction concerning use of the appliance by a person responsible for their safety. Children should be supervised to ensure that they do not play with the appliance.

ENGLISH

INSTALLATION PART

ENGLISH

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.

Item Image

Installation

Manual

Outdoor Unit

Chassis

UN36A

(Product heating capacity :

5, 7, 9 kW)

Outdoor Unit

UN60A Chassis

(Product heating capacity :

9, 12, 14, 16 kW)

Remote Controller

Remote Controller Cable

Damper

Drain Cap

Drain Nipple

GENERAL 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 Information

Buyer Model Name

ENGLISH

H M 16 1 M U3 3

Series Number Chassis Name U3 : UN60A Chassis U4 : UN36A Chassis

Leaving Water Combination M : Middle Temperature

Electrical ratings 1 : 50 Hz 220-240 V~ 3 : 50 Hz 380-415 V 3N~

Heating Capacity Ex) “05” : 5 kW, “07” : 7 kW, “09” : 9 kW “12” : 12 kW, “14” : 14 kW, “16” : 16 kW

M: AWHP Monobloc H: Air to Water Heat Pump

Factory Model Name

ZH B W 16 6 A 0

Series Number Function

A : General heating heat pump S : Silent

Electrical ratings 6 : 50 Hz 220-240 V~ 8 : 50 Hz 380-415 V 3N~

Heating Capacity Ex) “05” : 5 kW, “07” : 7 kW, “09” : 9 kW “12” : 12 kW, “14” : 14 kW, “16” : 16 kW Model Type W: Inverter Heat Pump

B: AWHP Monobloc ZH: Air to Water Heat Pump

HM09 1 M RSU33

Series Number Chassis Name U3 : UN60A Chassis U4 : UN36A Chassis

Function S : Silent Refrigerant R : R32

Leaving Water Combination M : Middle Temperature

Electrical ratings 1 : 50 Hz 220-240 V~ 3 : 50 Hz 380-415 V 3N~

Heating Capacity Ex) “05” : 5 kW, “07” : 7 kW, “09” : 9 kW “12” : 12 kW, “14” : 14 kW, “16” : 16 kW M: AWHP Monobloc H: Air to Water Heat Pump

- Additional Information : serial number refers to the barcode on the product.

- Max allowable pressure

High side : 4.32 MPa / Low side : 2.4 MPa

GENERAL INFORMATION

ENGLISH

Model name and related information

Model Name Capacity (kW)

Chassis Phase(Ø) Capacity(kW) Heating

Cooling

5 5.5 5.5

UN36A 1

777

999

UN60A

12 12 12

14 14 14

16 16 16

12 12 12

14 14 14

16 16 16

1 : tested under EN14511

(water temperature 30 °C ’ 35 °C at outdoor ambient temperature 7 °C / 6 °C)

2 : tested under EN14511

(water temperature 23 °C ’ 18 °C at outdoor ambient temperature 35 °C / 24 °C)

h All appliances were tested at atmospheric pressure.

Power Source

(Unit)

220-240 V~

50 Hz

380-415 V 3N~

50 Hz

Parts and Dimensions

GENERAL INFORMATION

ENGLISH

UN36A (5, 7, 9 kW)

h The shape may differ depending on the model.

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 exchanger between refrigerant and water

7 Water Pump Circulating the water

8 Pressure Gage Indicates circulating water pressure

9 Safety valve Open at water pressure 3 bar

10 compressor -

ENGLISH

GENERAL INFORMATION

UN60A (9, 12, 14, 16 kW)

3D View

Side View

h The shape may differ depending on the model.

GENERAL INFORMATION

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 Front Panel 6 Side Panel 7 Signal A Network Kit cables 8 Signal B Network Kit cables

9 Signal C 10 Outdoor Entry Power Cable 11

Water Pump

Plate Heat Exchanger

Pressure Gage

Safety valve

Heater Control Box

Outdoor Control Box

Circulating the water Heat exchanger between refrigerant and water Indicates circulating water pressure Open at Water pressure 3 bar Heater PCB and terminal blocks Outdoor PCB and terminal blocks

ENGLISH

GENERAL INFORMATION

ENGLISH

Control Parts

Control box before structural change (Until August, 2020)

UN36A (5, 7, 9 kW) UN60A (9, 12, 14, 16 kW)

Control box after structural change (From September, 2020)

h The shape may differ depending on the model. Refer to “Exploded View” in SVC Manual.

Description

No Name Remark

1 Terminal blocks The terminal blocks allow easy connection of field wiring

2 Main PCB

The main PCB(Printed Circuit Board) controls the functioning of the unit

GENERAL INFORMATION

Control box before structural change (Until January, 2021)

UN36A (5, 7, 9 kW)

Control box after structural change (From February, 2021)

ENGLISH

h The shape may differ depending on the model. Refer to “Exploded View” in SVC Manual.

Description

No Name Remark

1 Terminal blocks The terminal blocks allow easy connection of field wiring

2 Main PCB

The main PCB(Printed Circuit Board) controls the functioning of the unit

GENERAL INFORMATION

ENGLISH

Remote Controller

Operation display window

Back button

Up/Down/Left/Right Button

Operation display window Operation and Settings status display

Back button When you move to the previous stage from the menu’s setting stage

Up/down/left/right button When you change the menu’s setting value

OK button When you save the menu’s setting value

On/Off button When you turn ON/OFF the Unit

On/Off Button

OK Button

GENERAL INFORMATION

Typical Installation Example

CAUTION

If is installed with pre-existing boiler, the boiler and 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

R T

M / F

ENGLISH

Floor heating loopFan coil unit

Radiator

NOTE

• Room thermostat

- Type of thermostat and specification should be complied with chapter 4 and chapter 7 of

• 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.

High Temperature

Low Temperature

M / F

Magnetic Filter (Mandatory)

installation manual.

Room Thermostat (Field supply)

2way valve (Field supply)

Shut-off valve

By-pass valve(Field supply)

Remote controller

GENERAL INFORMATION

DHW

tank

ENGLISH

CASE 2: Connecting DHW Tank

Outdoor Indoor

Hot water

City water

R T

M / F

DHW

tank

Floor heating loopFan coil unit

Radiator

NOTE

• DHW tank

- It should be equipped with internal electric heater to generate sufficient heat energy in very cold season.

- DHW : Domestic Hot Water

• 3way valve

- Type of 3way valve and specification should be complied with chapter 4 and chapter 7 of

High Temperature

Low Temperature

Shut-off valve

M / F

Magnetic Filter (Mandatory)

installation manual.

Room Thermostat(Field supply)

2way valve (Field supply)

By-pass valve(Field supply)

Remote controller

3way valve (Field supply)

CASE 3: Connecting Solar thermal system

Outdoor Indoor

R T

M / F

Solar heat source

Hot water

GENERAL INFORMATION

ENGLISH

Floor heating loopFan coil unit

DHW

tank

City water

Radiator

NOTE

• DHW tank

- It should be equipped with internal electric heater to generate sufficient heat energy in very cold season.

- DHW : Domestic Hot Water

• Pump

- Maximum power consumption of pump should be less than 0.25 kW.

High Temperature

Low Temperature

Shut-off valve

M / F

Magnetic Filter (Mandatory)

Room Thermostat(Field supply)

2way valve (Field supply)

By-pass valve(Field supply)

Remote controller

3way valve (Field supply)

Pump(Field supply)

GENERAL INFORMATION

ENGLISH

CASE 4: Connecting 2ndCircuit

Outdoor Indoor

R T

M / F

[Room A] Main Zone zone (Low Temp.)

Mix

Mix Kit

Buffer

Tank

[Room B] Additional zone (High Temp.)

circuit temp. sensor

Floor heating loop

Radiator Radiator

Floor heating loop

NOTE

• Mix Kit

- You can install it when you want to set the temperature of two rooms individually

- When heating, Main Zone can not be higher than Add Zone.

- When cooling, Main Zone can not be lower than Add Zone.

- The types and specifications of the Mix Kit are to comply with Chapters 4 and 7 of the

M / F

Installation Manual.

High Temperature

Low Temperature

Shut-off valve

Magnetic Filter (Mandatory)

Pressure Regulation valve (Field supply)

Room Thermostat (Field supply)

2way valve (Field supply)

By-pass valve(Field supply)

Air vent (Field supply)

3way valve (Field supply)

Pump(Field supply)

Mix Kit (Field supply)

CASE 5: Connecting 3rdParty

Outdoor Indoor

3 Way V/V direction

Boiler On : Ơ Boiler Off : ȯ

GENERAL INFORMATION

ENGLISH

M / F

Buffer

Tank

Boiler

Floor

heating loop

Floor

heating loop

Floor

heating loop

NOTE

• DHW tank

- 3rd Party Boiler

- You can control the boiler automatically and manually by comparing the outside temperature and the set temperature.

• 3way valve

- It is a valve for DHW use.

- Not installed when installing Buffer Tank

- Type of 3way valve and specification should be complied with chapter 4 and chapter 7 of installation manual.

High Temperature

Low Temperature

Shut-off valve

Magnetic Filter (Mandatory)

M / F

Reverse check valve

Room Thermostat(Field supply)

2way valve (Field supply)

By-pass valve(Field supply)

Air vent (Field supply)

3way valve (Field supply)

Pump(Field supply)

Aquastat V/V

GENERAL INFORMATION

ENGLISH

CASE 6 : Connecting backup heater

Outdoor

Indoor

R T

Buffer

M/F

Tank

Floor heating

loop

Floor heating

loop

Floor heating

loop

NOTE

• Backup heater(Accessory)

- You can retain sufficient capacity even though ambient temperature will be decreased in winter.

High Temperature

Low Temperature

M / F

Magnetic Filter (Mandatory)

Room Thermostat (Field supply) 3way valve (Field supply)

Remote controller

Shut-off valve

By-pass valve (Field supply)

Cycle Diagram

UN60A (12, 14, 16 kW)

GENERAL INFORMATION

ENGLISH

UN36A (5, 7, 9 kW)

Accumulator

EEV1

EEV3 (Inj.EEV)

IHEX

EEV1

EEV3

(Inj.EEV)

IHEX

High Pressure

Mufﬂer

EEV2

Sensor S1

Pressure

Switch

Inv. Comp

S10

High Pressure

Mufﬂer

EEV2

Sensor

Pressure

Switch

Accumulator

Inv. Comp

S10

S12

Water

Out

[PHE]

Water

[PHE]

Water

S12

Out

Pressure

Water

Gage

Flow

Switch

Pressure

Gage

Switch

Air Vent

Relief valve

W/Pump

Air Vent

Relief valve

W/Pump

Flow

S13

Backup

Heater

Accessory

Expansion Tank

Air Vent

Strainer

S13

Backup

Heater

Accessory

Expansion Tank

Air Vent

Strainer

: Cooling : Heating

S11

: Cooling : Heating

S11

ENGLISH

UN60A (1Ø : 9 kW)

GENERAL INFORMATION

EEV1

Description

Category Symbol

Indoor

Unit

Water

Side

S10

S11

S13

High Pressure

Pressure

Switch

Accumulator

EEV3

(Inj.EEV)

High pressure sensor

Condenser middle temperature sensor

Compressor-discharge pipe temperature sensor

Compressor-suction pipe temperature sensor

Condenser temperature sensor

Outdoor air temperature sensor

Inlet IHEX temperature sensor

Outlet IHEX temperature sensor

PHEX gas temp. sensor

PHEX liquid temp. sensor

Entering water temperature sensor

Leaving water temperature sensor

Electric backup heater outlet (Accessory kit)

Sensor

Mufﬂer

S12

Inv. Comp

Meaning

S10

Water

Out

[PHE]

Water

Pressure

Gage

Air Vent

Relief valve

Flow

Switch

Backup

Heater

Accessory

Expansion Tank

Air Vent

Strainer

W/Pump

: Cooling : Heating

S13

S11

Connector

CN_H_PRESS

CN_MID

CN_DISCHA

CN_SUCTION

CN_C_PIPE

CN_AIR

CN_VI_IN

CN_VI_OUT

CN_PIPE_OUT

CN_PIPE_IN

CN_TH3S12

PCB

-S9, S10, S5 : Description is expressed based on Cooling mode.

Water cycle

S16

Solor

Solar

Thermal

Panel

Componets

SYSTEM

SOLAR THERMAL

GENERAL INFORMATION

ENGLISH

Shower

Temp. Sensor

Remote Room

B/HT

V/V_2

3WAY

S14

W/PUMP_2

S15

City Water

DHW Tank

V/V_1

3WAY

F/S

V/V_1

2WAY

Fan

S12

Coil

Unit

S10

Heating

Underfloor

S11

W/PUMP_1

connected

necessary)

(Solar thermal kit is

Solar thermal system is

Installed

necessary)

DHW Tank is

(DHW tank is

Radiator

M/F

(Mandatory)

Magnetic Filter

EXP/TANK

(Hydro-Kit)

Indoor Unit

Basic installation

Unit

Ref Out

Ref In

ENGLISH

Description

GENERAL INFORMATION

Category Symbol Meaning PCB Connector Remarks

Unit

Water

Heating

Solar

Heating

S9 Refrigerant temperature sensor (Gas side) CN_PIPE_OUT S10 Refrigerant temperature sensor (Liquid side) CN_PIPE_IN S11 Water temperature sensor (Water In) Water _IN S12 Water temperature sensor (Water Out) Water _OUT

F/S Flow Switch CN_FLOW1

E/HT Electric Heater

W_PUMP1 Internal Water Pump CN_MOTOR1 - Water Pump is connected at CN_MOTOR1

EXP/TANK Expansion Tank (no connector) - Absorb volume change of heated water,

S14 Remote Air temperature sensor CN_ROOM

CTR/PNL Remote Controller CN_REMO

2WAY V/V_1 To control water flow for Fan Coil Unit CN_2WAY(A)

M / F Magnetic Filter (No connector)

W/TANK DHW Tank (no connector)

B/HT Booster heater(in DHW tank) CN_B/HEAT(A)

3WAY V/V_1

CITY WATER

SHOWER Water supplied to end-user (no connector) - Field installation

3WAY V/V_2

W_PUMP/2 External Water Pump CN_W/PUMP(B)

THERMAL

SYSTEM

- Flow control for water which is leaving from unit.

- Flow direction switching between underfloor and water tank

Water to be heated by Indoor unit and B/HT of W/TANK

S15 W/TANK water temperature sensor

S16 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

- This system can include following components :

SOLAR

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_E/HEAT(A) CN_E/HEAT(B)

CN_3WAY(A)

(no connector) - Field installation

CN_TH4

CN_3WAY(B)

(no connector)

- Meaning is expressed based on Cooling mode.

- Optional accessory (sold separately)

- Model : HA**1A E1

- 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(220-240 V~ 50 Hz) of E/HEAT(A) and E/HEAT(B) are supplied by external power source via relay connector and ELB.

- Optional accessory (sold separately)

- Model : PQRSTA0

- 3rdparty accessory and Field installation (sold separately)

- 2 wire NO or NC type 2way valve is supported.

- 3rdparty accessory and Field installation (sold separately)

- It is Mandatory to install an additional filter on the heating water circuit.

- 3rd party accessory and Field installation (sold separately)

- Generating and storing DHW by AWHP or built-in electric heater

- 3rdparty accessory and Field installation (usually built-in at W/TANK)

- Supplying additional water heating capacity.

- 3rdparty accessory and Field installation (sold separately)

- SPDT type 3way valve is supported.

- S15 and S16 are connected at 4 pin type connector CN_TH4.

- S15 is a part of DHW tank kit.(Model : PHLTB)

- S16 is a part of solar thermal kit (Model:PHLLA)

- 3rdparty accessory and Field installation (sold separately)

- SPDT type 3way valve is supported.

- 3rdparty accessory and Field installation (sold separately)

- If water pump of SOLAR THERMAL SYSTEM is incapable of circulation,external water pump can be used.

- 3rdparty accessory and Field installation (sold separately)

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