LG HN0916T INSTALLATION MANUAL

INSTALLATION MANUAL

AIR-TO-WATER HEAT PUMP

www.lg.com

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

MFL68681818

Rev.02_050621

ENGLISH

ITALIANO

ESPAÑOL

FRANÇAIS DEUTSCH

ΕΛΛΗΝΙΚΆ

ČEŠTINA

NEDERLANDS

POLSKI

LIMBA ROMÂNĂ

PORTUGUÊS

MAGYAR

БЪЛГАРСКИ

SRPSKI

HRVATSKI

SLOVENŠČINA

DANSK

TABLE OF CONTENTS

ENGLISH

5 PREFACE

[Chapter 1]

6 SAFETY INSTRUCTIONS

[Chapter 2]

14 INSTALLATION PART

[Chapter 3]

17 GENERAL INFORMATION

17 Model Information 20 Model name and related information 20 How to ﬁnd additional model information 21 Parts and Dimensions 27 Control Parts 29 Control Panel 30 Typical Installation Example 33 Cycle Diagram (For Split IWT) 34 Cycle Diagram (For Hydrosplit IWT) 35 Piping Diagram (For Split IWT) 36 Piping Diagram (For Hydrosplit IWT) 37 System planning and preparation

[Chapter 4]

38 INSTALLATION OF OUTDOOR UNIT

38 Conditions where Outdoor Unit is Installed 38 Drill a Hole in the Wall (For Split) 39 Transporting the Unit 41 Installation at Seaside 41 Seasonal wind and cautions in winter

[Chapter 5]

42 INSTALLATION OF INDOOR UNIT

42 Conditions where Indoor Unit is Installed 43 Transporting the Unit 44 Connecting Condensate drainage 44 Front Panel Removal 45 Floor area requirement : Indoor unit (For Split IWT) 46 Ventilation requirements 49 Electrical Wiring

[Chapter 6]

53 PIPING AND WIRING FOR OUTDOOR UNIT

53 Refrigerant Piping (For Split IWT) 57 Water Piping (For Hydrosplit IWT) 58 Wiring Procedure for Power Cable and Connecting Cable 61 Finalizing (For Split) 62 Finalizing (For Hydrosplit) 63 Leakage test and Evacuation (For Split IWT) 65 Electrical Wiring

TABLE OF CONTENTS

ENGLISH

[Chapter 7]

70 HYDRAULIC CONNECTION FOR INDOOR UNIT

70 General Considerations 72 Connection to the Domestic hot water system 75 Connection to the Heating system 77 Water Charging 78 Water pump Capacity 78 Pressure Drop 79 Performance curve 81 Water Quality 81 Frost protection

[Chapter 8]

82 ACCESSORIES INSTALLATION

83 Before Installation 84 Domestic hot water expansion vessel – integrated into the unit 85 Buffer tank – integrated into the unit 88 Thermostat 96 3rd Party Boiler 97 3rd Party Controller 98 Meter Interface 99 Central Controller 101 Dry Contact 104 External Controller - Setting up programmable digital input operation 105 Remote Temperature Sensor 108 External pump 109 Wi-ﬁ Modem 111 Smart Grid (For Split IWT) 112 Energy State (For Hydrosplit IWT) 113 Digital Input for energy saving (ESS, Smart Grid)(For Hydrosplit IWT) 114 2Way Valve 115 Final check

[Chapter 9]

116 CONFIGURATION

116 DIP Switch Setting (For Split IWT) 120 DIP Switch Setting (For Hydrosplit IWT)

126 SERVICE SETTING

126 How to enter service setting 126 Service setting 127 Service contact 128 Model information 129 RMC version information 130 Open source license

131 INSTALLER SETTING

131 How to enter installer setting 132 Installer setting (For Split IWT) 135 Installer setting (For Hydrosplit IWT) 138 Overview settings (For Split IWT) 141 Overview settings (For Hydrosplit IWT) 144 Select Temperature Sensor 145 Use Heating Tank Heater 146 Mixing circuit (For Split IWT) 147 Mixing Circuit (For Hydrosplit IWT) 148 Use External Pump (For Split IWT) 149 Use External Pump (For Hydrosplit IWT)

TABLE OF CONTENTS

ENGLISH

150 RMC master/slave 151 LG Therma V Conﬁguration 152 Forced operation 153 Pump Capacity (For Split IWT) 154 Pump Prerun/Overrun 155 Water Flow Control (For Hydrosplit IWT) 156 Password Reset 157 Heating temp. setting 158 Air heating set temp. 159 Water heating set temp 160 TH on/off Variable, heating air (For Split IWT) 161 TH on/off Variable, heating water (For Split IWT) 162 Hysteresis Heating Water (For Hydrosplit IWT) 163 Hysteresis Room Air(Heating) (For Hydrosplit IWT) 164 Pump setting in heating 165 Heater on temperature 166 Screed drying 168 Cooling temp. setting 169 Air cooling set temp. 170 Water cooling set temp 171 Water supply off temp. during cooling 173 TH on/off Variable, cooling air (For Split IWT) 174 TH on/off Variable, cooling water (For Split IWT) 175 Hysteresis Cooling Water (For Hydrosplit IWT) 176 Hysteresis Room Air(Cooling) (For Hydrosplit IWT) 177 Pump setting in cooling 178 Seasonal auto temp. (For Split IWT) 180 Seasonal auto temp. (For Hydrosplit IWT) 182 DHW set temp 183 Tank disinfection setting 1, 2 184 Tank setting 1 185 Tank setting 2 187 DHW time setting 189 Pump test run 190 Frost Protection Temp. 192 Dry Contact Mode 193 Central Control Address 194 CN_CC 195 Smart Grid (SG) (For Split IWT) 196 Power Supply Blockage (Smart Grid) (For Split IWT) 197 Modbus Address 198 Modbus gateway memory map (For Hydrosplit IWT) 201 CN_EXT 202 3rd Party Boiler 203 Meter Interface 204 Energy state (For Hydrosplit IWT) 205 Thermostat control type (For Hydrosplit IWT) 206 Pump operation time 207 IDU operation time 208 Current ﬂow rate 209

Data logging

[Chapter 10]

210 COMMISSIONING

210 Check List before Starting Operation 211 Starting Operation 212 Starting Operation ﬂow chart 212 Airborne Noise Emission 213 Vacuum & Charge of Refrigerant 216 Decommissioning and Recycling 218 Replacing magnesium anode 219 Troubleshooting 224 Reset of the thermal protection of the electrical heater 225 Open Source Software Notice Information

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 ten chapters. These chapters are classified according to installation procedure. See the table below to get summarized information.

REMARK : ALL CONTENTS OF THIS MANUAL ARE SUBJECT TO CHANGE WITHOUT NOTICE.

TO GET THE LATEST INFORMATION, PLEASE VISIT LG ELECTRONICS WEB SITE.

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

• Items Inside product Box

• Before starting installation, please make it sure that all parts are found inside the product box.

Chapter 3

• Fundamental knowledge about

• Model identification, accessories information, cycle diagram, parts and dimensions, etc.

• This chapter is important to understand

Chapter 4

• Installation about the outdoor unit.

• Installation location, constraints on installation site, etc

Chapter 5

• Installation about the indoor unit.

• Installation location, constraints on installation site, etc

Chapter 6

• How to perform piping and wiring at the outdoor unit.

• Refrigerant pipe connection between the indoor unit and the outdoor unit.

• Water pipe connection between the indoor unit and outdoor unit.

• Electrical wiring at the outdoor unit.

Chapter 7

• 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.

Chapter 8

• Information about supported accessories

• Specification, Constraints, and wiring are described.

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

Chapter 9

• Information about installation setting.

• DIP switch, service, installer setting etc.

Chapter 10

• Check points before starting operation are explained.

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

SAFETY INSTRUCTIONS

ENGLISH

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.

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

This appliance is filled with flammable refrigerant (R32)

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

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

SAFETY INSTRUCTIONS

WARNING

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

CAUTION

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

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.

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.

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

ENGLISH

• 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.

• 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 authorises their competence to handle refrigerants safely in accordance with an industry recognised assessment specification.

• 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.

• Flexible refrigerant connectors (such as connecting lines between the indoor and outdoor unit) that may be displaced during normal operations shall be protected against mechanical damage.

• Pipe-work shall be protected from physical damage.

• Mechanical connections (mechanical connectors or flared joints) shall be accessible for maintenance purposes.

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

ENGLISH

• 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.

• 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.

• 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).

SAFETY INSTRUCTIONS

ENGLISH

• 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.

• 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.

• 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.

• Do not install the unit in potentially explosive atmospheres.

• The water may drip from the discharge pipe of the pressurerelief device and that this pipe must be left open to the atmosphere.

• The pressure-relief device is to be operated regularly to remove lime deposits and to verify that it is not blocked.

• A discharge pipe connected to the pressure-relief device is to be installed in a continuously downward direction and in a frost-free environment.

SAFETY INSTRUCTIONS

ENGLISH

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.

• 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.

• 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.

SAFETY INSTRUCTIONS

ENGLISH

• 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.

INSTALLATION PART

ENGLISH

(For Split IWT)

INDOOR UNIT BOX

Thank you for choosing LG Electronics Air-to-Water Heat Pump Before starting installation, please make it sure that all parts are found inside the product box.

INSTALLATION PART

Item Image Quantity

Outdoor Unit

U36A Chassis

Damper 4

Drain Cap 2

Drain Nipple 1

OUTDOOR UNIT BOX

Item Image Quantity

Indoor Unit 1

Installation

Manual

Owner's /

Installation

manual

Item Image Quantity

Shut-off valve 1

Shut-off valve

with integrated

strainer

Gasket (G1”)

Gasket (G3/4”)

INSTALLATION PART

ENGLISH

Item Image Quantity

Shut-off valve 1

Shut-off valve

with integrated

strainer

Gasket (G1”)

Gasket (G3/4”)

Item Image Quantity

Indoor Unit 1

Installation

Manual

Owner's /

Installation

manual

(For Hydrosplit IWT)

INDOOR UNIT BOX

OUTDOOR UNIT BOX

Item Image Quantity

Outdoor Unit U60A Chassis

Drain Cap 4

Drain Nipple 1

Strainer 1

Damper 4

INSTALLATION PART

ENGLISH

INSTALLATION TOOLS

Figure Name Figure Name

Screw driver Ohmmeter

Electric drill Hexagonal wrench

Measuring tape, Knife Ammeter

Hole core drill Leak detector

Spanner

Thermometer,

Horizontal meter

Torque wrench Flaring tool set

Manifold Gauge Vacuum Pump

GENERAL INFORMATION

ENGLISH

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

Factory Model Name

Outdoor unit (For Split IWT)

Z HUW 0 9 6 A 0

Series Number Function

A : General heating heat pump Electrical ratings

6 : 1 phase 220-240 V~ 50 Hz Heating Capacity

05 : 5 kW 07 : 7 kW 09 : 9 kW Model Type

W : Inverter Heat Pump Classification

U : Outdoor Unit ZH : Air-to-Water-Heat Pump for R32

Outdoor unit (For Hydrosplit IWT)

Z HBW 1 6 8 B 0

Series Number Function

B : Hydrosplit Type Electrical ratings

6 : 1 phase 220-240 V~ 50 Hz 8 : 3 phase 380-415 V~ 50 Hz

Heating Capacity 12 : 12 kW 14 : 14 kW 16 : 16 kW

Model Type W : Inverter Heat Pump

Classification B : Monobloc

ZH : Air-to-Water-Heat Pump for R32

GENERAL INFORMATION

ENGLISH

Function I : Split IWT Y : Hydrosplit IWT

Z H N W 2 0 6 0 6 I 0

Heater Electrical ratings

6 : 1 phase 220-240 V~ 50 Hz

Water Tank Capacity 20 : 200L

Heater Capacity

06 : 6 kW

Model Type

W : Inverter Heat Pump

Classification

N : Indoor Unit

ZH : Air-to-Water-Heat Pump for R32

Series Number

Indoor unit

Buyer Model Name

Outdoor unit (For Split IWT)

09 M R U 4 4

Series Number

Chassis U36A

Classification U : Outdoor Unit

Refrigerant R : R32

M : Middle Temperature

Electrical ratings 1 : 1Ø, 220-240 V AC 50 Hz

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

Classification U : Outdoor Unit

H : Air to Water Heat Pump

1UH

- IWT : Integrated water tank Indoor unit

GENERAL INFORMATION

ENGLISH

Indoor unit

09 6 T N B 1

Series Number Chassis (Platform)

B : DHW tank integrated Platform Classification

N : Indoor Unit Function

T : Split IWT Y : Hydrosplit IWT

Heater Capacity 6 : 6 kW Heater

Heater Electrical ratings 1 : 1Ø, 220-240 V, 50 Hz

Heating Capacity Ex) “09” : 9 kW “16” : 16 kW

Classification N : Indoor Unit

H : Air to Water Heat Pump

1NH

Outdoor unit (For Hydrosplit IWT)

H U163 M R B U 3 0

Series Number Chassis

U60A Classification

U : Outdoor unit B : Hydrosplit Type Refrigerant

R : R32

M : Middle Temperature Electrical ratings

1 : 1Ø, 220-240 V~ 50 Hz 3 : 3Ø, 380-415 V~ 50 Hz

Heating capacity Ex) 12 kW : “12”, 14 kW : “14”, 16 kW : “16”

U : Outdoor unit

Classification

H : Air to water Heat Pump

- IWT : Integrated water tank Indoor unit

- DHW : Domestic hot water

GENERAL INFORMATION

ENGLISH

*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.

How to ﬁnd additional model information

Energy Labels and Product Fiches for all possible combinations can be found at https://www.lg.com/global/support/cedoc/cedoc.

Search for outdoor unit name in cedoc page.

Model Name

Built-In Electric

Heater(kW)

Capacity

Power Source

(Unit)

Type

Refrigerant

Outdoor Unit Indoor Unit

Heating

(kW)*

Cooling

(kW)*

Phase (Ø)

Capacity (kW)

Tank Capacity (L)

Split

R32

200

1Ø 2 (2)

1Ø 4 (2+2)

3Ø 6 (2+2+2)

5.5 5.5 220-240 V

50 Hz

7 7.0 7.0 9 9.0 9.0

Hydrosplit

12 12.0 12.0

220-240 V

50 Hz

14 14.0 14.0 16 16.0 16.0

12 12.0 12.0

380-415 V

50 Hz

14 14.0 14.0 16 16.0 16.0

Model name and related information

GENERAL INFORMATION

ENGLISH

Parts and Dimensions

Indoor unit (For Split IWT) : External

(unit : mm)

Description

1 SAE 5/8" Refrigerant gas pipe 2 SAE 3/8" Refrigerant liquid pipe 3 G3/4" Domestic hot water outlet 4 G3/4" Domestic cold water Inlet 5 G3/4" DHW Re-circulation 6 G1" Heating circuit inlet 7 G1" Heating circuit outlet 8 Built-in Remote controller 9 Electrical conduits

12 3 45 67

1812 87

65 108 63 63 108 65

198

551

1249

542

685

601

GENERAL INFORMATION

ENGLISH

(unit : mm)

Indoor unit (For Split IWT) : Internal

Description

No Item No Item

Domestic hot water tank

DHW water pump

Electric heater

DHW strainer

Flow sensor

Main water pump

3-way-valve DHW / Heating

DHW Expansion vessel (Accessory)

Pressure gauge

Control box

Expansion vessel for Heating

Air vent

Magnesium anode

Drain cock

DHW tank sensor

Conduits for electrical wiring

Plate-heat-exchanger (Water/DHW)

18 Plate-heat-exchanger (Refrigerant/Water)

GENERAL INFORMATION

ENGLISH

Outdoor unit (For Split IWT) : External

Product Heating Capacity :

5 kW,7 kW,9 kW

U36A Chassis

(unit : mm)

No Name

1 Liquid-side Service Valve

2 Gas-side Service Valve

3 Air discharge Grille

Description

4-holes for anchor bolts

390

330

Supporter

834

809

165 165

620

950

390

GENERAL INFORMATION

ENGLISH

Indoor unit (For Hydrosplit IWT) : External

Description

1 G1” Inlet from outdoor unit 2 G1” Outlet to outdoor unit 3 G3/4" Domestic hot water outlet 4 G3/4" Domestic cold water Inlet 5 G3/4" DHW Re-circulation 6 G1" Heating circuit inlet 7 G1" Heating circuit outlet 8 Built-in Remote controller 9 Electrical conduits

(unit : mm)

1812

198

12 3 45 67

551

66 107 63 63 108 65

614

1249

542

685

601

GENERAL INFORMATION

ENGLISH

(unit : mm)

Indoor unit (For Hydrosplit IWT) : Internal

Description

No Item No Item

Domestic hot water tank

DHW water pump

Electric heater

DHW strainer

Flow sensor

Main water pump

3-way-valve DHW / Heating

DHW Expansion vessel (Accessory)

Water pressure sensor

Control box

Expansion vessel for Heating

Air vent

Magnesium anode

Drain cock

DHW tank sensor

Conduits for electrical wiring

Plate-heat-exchanger (Water/DHW)

J K

C B

GENERAL INFORMATION

ENGLISH

Outdoor unit (For Hydrosplit IWT) : External

No Name

1 Entering Water Pipe

2 Leaving Water Pipe

3 Air discharge Grille

Description

Product Heating Capacity :

12 kW, 14 kW, 16 kW

U60A Chassis

(unit : mm)

165 619

330

390

360

4-holes for anchor bolts (M10)

834

165 166

619

950

405

137

390

GENERAL INFORMATION

ENGLISH

Control Parts

Control Box : Indoor Unit (For Split IWT)

Description

No Name Remark

1 Main PCB

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

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

Safety thermostat for Electric heater

The safety thermostat protects the backup heater against overload or short circuit

4 Electric heater Relay -

5 Holes for dry contact -

GENERAL INFORMATION

ENGLISH

Control Box : Indoor Unit (For Hydrosplit IWT)

Description

No Name Remark

1 Main PCB

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

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

Safety thermostat for Electric heater

The safety thermostat protects the backup heater against overload or short circuit

4 Electric heater Relay -

5 Holes for dry contact -

GENERAL INFORMATION

ENGLISH

Control Panel

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 AWHP

Operation display window

Back button

Up/Down/Left/Right Button

On/Off Button

OK Button

GENERAL INFORMATION

ENGLISH

CASE 1 : Connecting Heat Emitters for Heating and Cooling & DHW

(Under floor loop, Fan Coil Unit, Radiator, and Domestic hot water)

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.

Outdoor Indoor

Outdoor Unit

Indoor Unit

Floor

heating loop

Fan coil unit

Radiator

M / F

City water

Domestic hot water

NOTE

• Room thermostat

- Type of thermostat and specification should be complied with chapter 8 and chapter 9 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 8 and chapter 9

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.

• DHW Expansion vessel

- The cold DHW connection must be fitted with an expansion vessel suitable for drinking water.

The selection and installation must be in accordance with the standard DIN 4807 T5.

- An expansion vessel of 8 l volume that can be integrated into the unit is available as

accessory [OSHE-12KT]. the installation method of Expansion vessel can be found in chapter 8 of installation manual.

High Temperature Room Thermostat (Field supply)

2way valve (Field supply)

By-pass valve(Field supply)

Low Temperature

DHW Expansion vessel (Accessory)

Magnetic Filter (Recommended)

Shut-off valve with strainer

Shut-off valve

M / F

GENERAL INFORMATION

ENGLISH

CASE 2 : Connecting mixed Circuit

Outdoor Indoor

Outdoor Unit

Indoor Unit

M / F

City water

Domestic hot water

Floor heating loop

Mixing circuit temp. sensor

Mix

Mix Kit

[Circuit 1] Direct Circuit

[Circuit 2] Mixing Circuit

Floor heating loop

Radiator Radiator

Buffer

Tank

High Temperature Room Thermostat (Field supply)

Pump(Field supply)

By-pass valve(Field supply)

Pressure Regulation valve (Field supply)

Low Temperature

Buffer tank (Accessory)

Expansion vessel (Accessory)

Magnetic Filter (Recommended)

Shut-off valve with strainer

Mix Kit (Field supply)

Shut-off valve

M / F

NOTE

• Mix Kit

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

- When heating, Circuit 2 can not be higher than Circuit 1.

- When cooling, Circuit 2 can not be lower than Circuit 1.

- The types and specifications of the Mix Kit are to comply with chapter 8 and chapter 9 of the Installation Manual.

• Buffer Tank

- A Buffer tank of 40 l volume that can be integrated into the unit is available as accessory [OSHB-40KT].

- the installation method of Buffer tank can be found in chapter 8 of installation manual.

• External pump

- For Hydrosplit IWT, the location of the external pump may vary depending on the installer settings.

GENERAL INFORMATION

ENGLISH

CASE 3 : Connecting 3rdParty Boiler

Outdoor Indoor

Outdoor Unit

Indoor Unit

M / F

City water

Domestic hot water

Buffer

Tank

Floor

heating loop

Boiler

Floor

heating loop

Floor

heating loop

High Temperature Room Thermostat (Field supply)

By-pass valve(Field supply)

Air vent (Field supply)

2way valve (Field supply)

Low Temperature

Buffer tank (Accessory)

Expansion vessel (Accessory)

Aquastat V/V

Pump(Field supply)

Shut-off valve

Magnetic Filter (Recommended)

Check valve

M / F

Shut-off valve with strainer

NOTE

• 3rdparty Boiler

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

temperature and the set temperature.

For Hydrosplit IWT

Hydrosplit IWT has the same installation scene as Split IWT, Except for connection with outdoor unit.

- The outdoor unit and the indoor unit are connected by water pipes.

- To protect the product, be sure to install a strainer on the outdoor unit water inlet pipe.

- Install an air vent(Field supply) on the highest point of the water connection between outdoor and indoor unit.

- Make sure that the water pipes are protected from freezing in case of heat pump failure or power outage (e.g. Anti-freeze valve, that drains the water if temperature drops too much).

Outdoor Indoor

Outdoor Unit

Indoor Unit

Outdoor Indoor

Outdoor Unit

Indoor Unit

Strainer

(Field Supply)

(For Split IWT) (For Hydrosplit IWT)

GENERAL INFORMATION

ENGLISH

Cycle Diagram (For Split IWT)

Description

Category Symbol Meaning PCB Connector

Refrigerant

side

S1 Compressor-suction pipe temperature sensor CN_SUCTION S2 Inlet IHEX temperature sensor CN_VI_IN S3 Outdoor air temperature sensor CN_AIR S4 Outdoor-HEX temp. sensor CN_C_PIPE S5 Compressor-discharge pipe temperature sensor CN_DISCHARGE S6 Outdoor-HEX middle temp. sensor CN_MID S9 PHEX gas temp. sensor CN_PIPE/OUT

S10 PHEX liquid temp. sensor CN_PIPE/IN EEV1 Electronic Expansion Valve (Heating) CN_EEV1(WH) EEV3 Electronic Expansion Valve (Injection) CN_EEV3(YL)

Water Side

S11 Inlet water temperature sensor

CN_TH3S12 Outlet water temperature sensor S13 Electric heater outlet sensor S14 DHW tank temperature sensor CN_TH4 S17 Flow sensor CN_F_METER

A1 Main water pump

CN_MOTOR1

CN_W_PUMP_A

A16 DHW Water pump CN_W_PUMP_B

A5 3Way Valve CN_3WAY_A A8 Electric backup heater CN_E_HEAT_A

: Cooling : Heating

Pressure Sensor

EEV1

EEV3

(Inj.EEV)

Pressure Switch

Accumulator

Mufﬂer

Inv.Comp

S10

Drain pan

S14

Domestic Water Out

DHW Tank

S12

S11

Domestic

Water In

Air Vent

DHW Expansion Vessel

Re-circulation

Drain/Fill Cock

S17

Pressure Gauge

Drain/Fill Cock

DHW Safety Valve

Drain Cock

WaterInWater

Shut-off Valve With Strainer

S13

Expansion Vessel

Safety Valve

Drain/Fill Cock

DHW PHEX

A16

DHW Strainer

A5 M

Vent

Air

Out

Shut-off Valve

GENERAL INFORMATION

ENGLISH

Cycle Diagram (For Hydrosplit IWT)

Description

Category Symbol Meaning PCB Connector

Refrigerant

side

S1 PHEX liquid temperature sensor CN_PIPE_IN S2 Outdoor-HEX middle temperature sensor CN_MID S3 Compressor-discharge pipe temperature sensor CN_DISCHARGE S4 Compressor-suction pipe temperature sensor CN_SUCTION S5 Outdoor-HEX temperature sensor CN_C_PIPE S6 Outdoor air temperature sensor CN_AIR

S7 Compressor-injection pipe temperature sensor CN_VI_IN EEV1 Electronic Expansion Valve (Heating/Cooling) CN_EEV1 EEV2 Electronic Expansion Valve (Injection) CN_EEV_MAIN

Water Side

S11 Inlet water temperature sensor

CN_WATER_IN_BL

CN_WATER_OUT_BL

S12 Outlet water temperature sensor S13 Electric heater outlet sensor CN_TH3 S14 DHW tank temperature sensor CN_TH4 S17 Flow sensor CN_F_SENSOR S19 Water pressure sensor CN_H20_PRESS

A1 Main water pump

CN_MOTOR1

CN_PUMP_A1

A16 DHW Water pump CN_PUMP_A4

A5 3Way Valve CN_3WAY_A

A8 Electric backup heater CN_TANK_HEATER

: Cooling : Heating

Pressure

EEV1

EEV2

(Inj.EEV)

Pressure Switch

Accumulator

Sensor

Mufﬂer

Inv.Comp

(Field Supply)

Air

Shut-off

Vent

Valve With

Strainer

Shut-off

Valve

S12

Strainer

S11

Drain pan

S14

Domestic Water Out

DHW Tank

Domestic Water In

Re-circulation

S17

DHW Expansion Vessel

Drain/Fill Cock

DHW Safety Valve

Pressure Sensor

Drain/Fill Cock

Expansion Vessel

Drain/Fill Cock

DHW Strainer

Drain Cock

WaterInWater

Shut-off Valve With Strainer

S19

S13

Safety Valve

DHW PHEX

A16

Out

Shut-off Valve

Air Vent

GENERAL INFORMATION

ENGLISH

Piping Diagram (For Split IWT)

CAUTION

The diagram represents a schematic overview of the required system components and their location. It does not include all necessary components and safety devices according to DIN EN 12828, and eventually required equipment for maintenance and service. Local/national regulation needs to be followed! Subject to technical changes.

The following diagram shows an exemplary installation scene. For other examples, please ask your local LG Partner for support.

LG supply

① Outdoor unit [HU0X1MR.U44]

② Indoor unit [HN0916T.NB1]

③ DHW expansion vessel (8l) [OSHE-12KT]

④ Buffer tank (40l) [OSHB-40KT]

⑤ WIFI modem [PWFMDD200]

⑥ Extension cable(10m) [PWYREW000]

⑦ Room air sensor [PQRSTA0]

Outdoor Indoor

Refrigerant gas (5/8”) Refrigerant liquid (3/8”) Heating water - outlet

Heating water - inlet Domestic hot water(DHW) Domestic cold water DHW re-circulation

a. DHW Re-circulation pump (self-controlled) b. External circulation (with buffer only)

GENERAL INFORMATION

ENGLISH

Piping Diagram (For Hydrosplit IWT)

CAUTION

The following diagram shows an exemplary installation scene. For other examples, please ask your local LG Partner for support.

LG supply

① Outdoor unit [HU1XXMRB.U30]

② Indoor unit [HN1616Y.NB1]

③ DHW expansion vessel (8l) [OSHE-12KT]

④ Buffer tank (40l) [OSHB-40KT]

⑤ WIFI modem [PWFMDD200]

⑥ Extension cable(10m) [PWYREW000]

⑦ Room air sensor [PQRSTA0]

Outdoor Indoor

Strainer

Heating water - Hot Heating water - Cold Domestic hot water(DHW) Domestic cold water DHW re-circulation

a.DHW Re-circulation pump (self-controlled) b.External circulation (with buffer only)

GENERAL INFORMATION

ENGLISH

The design of the system must be planned and executed by a professional HVAC installer according to European and National regulations and Standards. The following points should be explicitly taken into account.

CAUTION

• Make sure that the minimum water flow rate as given in the Specification is never undercut. Install a Hydraulic separator, buffer tank connected in parallel to the heating system or a bypass valve with sufficient dimension!

• If the heat pump is installed together with an external boiler, the devices should not be operated at the same time. If operated in parallel, take appropriate measures to prevent hot water from entering the heat pump. If the temperature is higher than the operating range of the heat pump it can lead to malfunctions or damage the product.

• When using an Underfloor heating system:

- Respect the maximum temperature as given by the manufacturer. An independent overheat cut-off device is recommended.

- When using underfloor cooling, the adequacy of the underfloor system must be approved by the manufacturer.

• General recommendations for Cooling operation:

- Use diffusion resistant insulation.

- Carefully agglutinate the joints of the insulation. If air can enter between pipe and insulation, it will get wet and useless.

- Install a 2-way-valve to block parts of the distribution system that are not designed for cooling. Refer to chapter 3.4.13 for information how to connect the valve.

- Install external dew point monitor (relay) in combination with dry contact. The relative humidity shall not exceed 65%.

- Use reversible control valves (heating/cooling) for individual room control (e.g. underfloor thermostats).

• If the unit is connected to an old piping system:

- A magnetic filter should be installed in the return pipe to protect the unit from particles that can block the heat-exchanger and damage the unit.

- If pipe diameter is too small (<1 inch) or the pipe diameter is narrowed by scaling, it can lead to flow noise and cause problems due to limitation of water flow rate. Install a parallel buffer tank / hydronic separator.

• Prevention of noise must be taken into account when designing the installation.

- Calculate the sound emission and respect local laws and regulations, before installing the unit.

- Do not install the outdoor unit at an exposed position (on top of garage, high at the wall)

- If possible, prevent installation in a corner of the house or close to other surfaces that concentrates the sound.

- Prevent structure-borne noise. De-couple the pipes. Install the units on foundations decoupled from the building. Use dampers.

• Make sure that enough heat is available for Defrosting. If that cannot be ensured by the heating system, install a buffer tank.

• Carefully follow the instructions regarding Condensate drainage and frost-free installation of pipes.

System planning and preparation

INSTALLATION OF OUTDOOR UNIT

ENGLISH

Minimum service space (unit : mm)

Drill a Hole in the Wall (For Split)

- 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 Ø 70 mm hole core drill. Piping hole should be slightly slant to the outdoor side to prevent raindrop into indoor side.

300

Fence or

obstacles

700

300

600

Sunroof

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.

Conditions where Outdoor Unit is Installed

- 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.

Wall

5~7 mm

Indoor Outdoor

INSTALLATION OF OUTDOOR UNIT

ENGLISH

Transporting the Unit

• When carrying the suspended unit, pass the ropes between legs of base panel under the unit.

• Always lift the unit with ropes attached at four points so that impact is not applied to the unit.

• Attach the ropes to the unit at an angle Ⓐ of 40° or less.

• Use only accessories and parts which are of the designated specification when installing.

Sub line

40º or less

Air outlet grille Intake hole

Always hold the unit by the corners, as holding it by the side intake holes on the casing may cause them to deform.

Corner

Handle

Forklift

INSTALLATION OF OUTDOOR UNIT

ENGLISH

CAUTION

Be very careful while carrying the product.

• Do not have only one person carry product if it is more than 20 kg.

• PP bands are used to pack some products. Do not use them as a mean for transportation because they are dangerous.

• Do not touch heat exchanger fins with your bare hands. Otherwise you may get a cut in your hands.

• Tear plastic packaging bag and scrap it so that children cannot play with it. Otherwise plastic packaging bag may suffocate children to death.

• When carrying in Unit, be sure to support it at four points. Carrying in and lifting with 3-point support may make Outdoor Unit unstable, resulting in a fall.

• Use 2 belts of at least 8 m long.

• Place extra cloth or boards in the locations where the casing comes in contact with the sling to prevent damage.

• Hoist the unit making sure it is being lifted at its center of gravity.

INSTALLATION OF OUTDOOR UNIT

ENGLISH

- In case, to install the outdoor unit on the seaside, set up a windbreak not to be exposed to the sea wind.

- It should be strong enough like concrete to prevent the sea wind from the sea.

- The height and width should be more than 150% of the outdoor unit.

- It should be keep more than 700 mm of space between outdoor unit and the windbreak for easy air flow.

CAUTION

• AWHP should not be installed in areas where corrosive gases, such as acid or alkaline gas, are produced.

• Do not install the product where it could be exposed to sea wind (salty wind) directly. It can result corrosion on the product. Corrosion, particularly on the condenser and evaporator fins, could cause product malfunction or inefficient performance.

• If outdoor unit is installed close to the seaside, it should avoid direct exposure to the sea wind. Otherwise it needs additional anti-corrosion treatment on the heat exchanger.

Sea wind Sea wind

Sea wind

Windbreak

- Select a well-drained place. Periodic ( more than once/year ) cleaning of the dust or salt particles stuck on the heat exchanger by using water.

- If you can’t meet above guide line in the seaside installation, please contact your supplier for the additional anti-corrosion treatment.

Seasonal wind and cautions in winter

• Sufficient measures are required in a snow area or severe cold area in winter so that product can be

operated well.

• Get ready for seasonal wind or snow in winter even in other areas.

• Install a suction and discharge duct not to let in snow or rain.

• Install the outdoor unit not to come in contact with snow directly. If snow piles up and freezes on the

air suction hole, the system may malfunction. If it is installed at snowy area, attach the hood to the system.

• Install the outdoor unit at the higher installation console by 500 mm than the average snowfall (annual

average snowfall) if it is installed at the area with much snowfall.

• Where snow accumulated on the upper part of the Outdoor Unit by more than 100 mm, always

remove snow for operation.

- The height of H frame must be more than 2 times the snowfall and its width shall not exceed the width of the product. (If width of the frame is wider than that of the product, snow may accumulate)

- Don't install the suction hole and discharge hole of the Outdoor Unit facing the seasonal wind.

Installation at Seaside

Selecting the location(Outdoor Unit)

- If the outdoor unit is to be installed close to the seaside, direct exposure to the sea wind should be avoided. Install the outdoor unit on the opposite side of the sea wind direction.

INSTALLATION OF INDOOR UNIT

ENGLISH

INSTALLATION OF INDOOR UNIT

The indoor unit of is installed inside where terminal of under floor water pipe cycle and refrigerant pipe from the outdoor unit are accessible at the same time.

In this chapter conditions for installation place is described. In addition, considerations when installing accessories or 3

party accessories are described, too.

Conditions where Indoor Unit is Installed

Specific conditions are required for installation place such as service space, condensate drainage, water pipe length and height, total volume of water, adjusting expansion vessel, and water quality.

General Considerations Followings are should be considered before the installation of the indoor unit.

- The installation place should be free from outdoor weather conditions such as rain, snow, wind, frost, etc.

- Choose the place where is water-resistant or good drainage.

- Service space should be secured.

- No flammable materials around the indoor unit.

- Mice can not be appeared to prevent entering the indoor unit or attacking wires.

- Do not place anything in front of the indoor unit to ensure air circulation around the indoor unit.

- Do not locate anything under the indoor unit to be free from unexpected water out.

- In case of water pressure increasing to 3 bar or tank pressure increasing to 10 bar, water drainage should be treated when water is drained by safety valve.

NOTICE

The installation location of the indoor unit must be dry and in the temperature range between +10 ˚C and 40 ˚C, for a short period (up to 24h) also up to 55 °C.

WARNING

Do not block the venting openings on the backside of the unit! (For Split IWT)

CAUTION

The device must not be installed under pipelines because there is a possibility of condensate forming. Ingress of water condensate can cause disturbances in the operation.

INSTALLATION OF INDOOR UNIT

ENGLISH

Minimum service space

(unit : mm)

NOTE

• Provide enough space for

servicing and air circulation. The unit is designed to allow servicing from front side. However, if it becomes necessary to replace components, a service area of approximately 500 mm on the right side, makes the task much easier.

Transporting the Unit

CAUTION

• The device must be transported with transport

devices.

• Secure the device during transport to prevent damage.

• The device must not be stacked and other objects

must not be placed on it.

• Appropriate transport equipment must be used for

installing the device. Safety regulations and good practice have to be applied.

• When lifting the unit, use the dedicated carrying

handles at bottom and backside of the product

• Tilt over the unit carefully with at least two persons

Service Space

- Ensure that the spaces indicated by arrows around front, right, and top side.

- Wider spaces are preferred for easy maintenance and piping.

- If minimum service space is not secured, air circulation can be troubled and internal parts of the indoor unit can be damaged by overheating.

500

(Recommended)

600

500

(Recommended)

300

INSTALLATION OF INDOOR UNIT

ENGLISH

①

②

③

Front Panel Removal

Step 1. After releasing a screw from the top the Indoor unit,

detach front panel ①.

Step 2. Tilt the front panel towards you ② and lift it ③ for

opening

Step 3. Before taking front panel off completely, disconnect

the cable of the remote controller ④.

CAUTION

After installation is completed, reconnect the cable of remote controller.

Step 3. Before connecting any pipes, level the indoor unit

with supplied adjustable levelling feet.

CAUTION

• Attaching the hose for the condensate drain to the sewer hose can cause corrosion of the appliance’s internal components.

• The drain pipe must have an odor trap!

Connecting Condensate drainage

Step 1. Before the indoor unit’s final positioning, attach the

flexible Ø16 hose to the drainpipe, which has been prepared in advance. Insert the drainage hose into the drain ①, which leads to the sinkhole or storm drain. Seal the gap with a suitable gasket.

Step 2. Then push the appliance to the wall ②.

①

②

④

INSTALLATION OF INDOOR UNIT

ENGLISH

- If the total refrigerant charge (mc) is in system ≥1.842 kg, additional minimum floor area requirements is complied in the following flow chart.

Floor area requirement : Indoor unit (For Split IWT)

Determine :

• The total refrigerant charge in the system, mc (kg)

• The room A area installed the appliance,

Room

(m2)

Calculate based on Table 1 :

• The maximum refrigerant charge allowed for room A

max

(kg)

Determine :

• The adjacent room B area, B

Room

(m2)

Calculate based on Table 2 :

• The total minimum floor area required for the total refrigerant charge mc, A

min

(m2)

Calculate based on Table 3 :

• The minimum opening area for natural ventilation between room A and room B according to the value of mcand A

Room

min

(m2)

The unit can be installed in room A when the following ventilation requirements are fulfilled.

please contact your local engineer / dealer.

The unit can be installed in room A without further room size or ventilation requirements.

max

≥ m

Room

+ B

Room≥Amin

Yes

Room A Room B

More than

1.5m

Room

> 0.5 * AV

min

Room

INSTALLATION OF INDOOR UNIT

ENGLISH

• Two ventilation openings, one at bottom, another at top, for ventilation purposes are made between room A and room B.

• Bottom opening :

- Must comply to the minimum area requirement of AV

min

- Opening must be located 300mm from the floor.

- At least 50% of required opening area must be 200mm from the floor.

- The bottom of the opening shall not be higher than the point of release when the unit is

installed and must be situated 100mm above the floor.

- Must be as close as possible to the floor and lower than h

(h0=Installation height, The value of h0in this unit is considered as 1.2m)

• Top opening :

- The total size of the Top opening must be more than 50% of AV

min

- Opening must be located 1500mm above the floor.

• The height of the openings between the wall and floor which connect the rooms are not less than 20 mm.

• Ventilation openings to the outside are NOT considered suitable ventilation openings (the user can block them when it is cold).

Table 1 - Maximum refrigerant charge allowed in a room

Ventilation requirements

NOTE

• The value of "Release height (h0)“ in this unit is considered 1200 mm to comply to IEC 60335-2-40:2013 A1 2016 Clause GG2.

• For intermediate A

room

values, the value that corresponds to the lower A

room

value from the

table is considered. (If A

room

=10.5 m2, consider the value that corresponds to A

room

=10 m2.)

room

(m2)

Maximum refrigerant charge in a room

max

(kg)

Based on

h01.2 m 1 0.28 2 0.55 3 0.83 4 1.11 5 1.38 6 1.66 7 1.81 8 1.94 9 2.06

10 2.17 11 2.27 12 2.37 13 2.47 14 2.57 15 2.66 16 2.74 17 2.83 18 2.91 19 2.99 20 3.07 21 3.14

INSTALLATION OF INDOOR UNIT

ENGLISH

NOTE

• The value of "Release height (h0)“ in this unit is considered 1200 mm to comply to IEC 60335-2-40:2013 A1 2016 Clause GG2.

• For intermediate m

values, the value that corresponds to the higher mcvalue from the table is considered. (If mc= 1.85 kg, the value that corresponds to mc = 1.86 kg is considered.)

• Systems with total refrigerant charge lower than 1.84 kg are not subjected to any room area requirements.

• Charges above 3.10 kg are not allowed in the unit.

Table 2 - Minimum floor area

25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10

9 8 7 6 5 4 3 2 1 0

1.5 2.0 2.5 3.0 3.5

Amin (m

)

mc (kg)

Total Ref.

Amount

mc(kg)

Minimum Floor Area

min

(m2)

Based on

h01.2 m

1.84 7.20

1.86 7.36

1.88 7.52

1.90 7.68

1.92 7.84

1.94 8.01

1.96 8.17

1.98 8.34

2.00 8.51

2.02 8.68

2.04 8.85

2.06 9.03

2.08 9.21

2.10 9.38

2.12 9.56

2.14 9.74

2.16 9.93

2.18 10.11

2.20 10.30

2.22 10.49

2.24 10.68

2.26 10.87

2.28 11.06

2.30 11.26

2.32 11.45

2.34 11.65

2.36 11.85

2.38 12.05

2.40 12.26

2.42 12.46

2.44 12.67

2.46 12.88

2.48 13.09

2.50 13.30

2.52 13.51

2.54 13.73

2.56 13.94

2.58 14.16

2.60 14.38

2.62 14.61

2.64 14.83

2.66 15.05

2.68 15.28

2.70 15.51

2.72 15.74

2.74 15.97

2.76 16.21

Total Ref.

Amount

mc(kg)

Minimum Floor Area

min

(m2)

Based on

h01.2 m

2.78 16.44

2.80 16.68

2.82 16.92

2.84 17.16

2.86 17.40

2.88 17.65

2.90 17.89

2.92 18.14

2.94 18.39

2.96 18.64

2.98 18.89

3.00 19.15

3.02 19.41

3.04 19.66

3.06 19.92

3.08 20.18

3.10 20.45

INSTALLATION OF INDOOR UNIT

ENGLISH

NOTE

• The value of "Release height (h0)“ in this unit is considered 1200 mm to comply to IEC 60335-2-40:2013 A1 2016 Clause GG2.

• For intermediate A

room

values, the value that corresponds to the lower A

room

value from the

table is considered. (If A

room

=10.5 m2, consider the value that corresponds to A

room

=10 m2.)

• For intermediate mcvalues, the value that corresponds to the higher mcvalue from the table is considered. (If mc= 2.15 kg, the value that corresponds to mc = 2.2 kg is considered.)

Table 3 - Minimum venting opening area for natural ventilation

room

(m2)

Minimum opening area

min

(cm2) (Based on h01.2 m)

Total Ref. Amount

mc(kg)

3.1 3.0 2.9 2.8 2.7 2.6 2.5 2.4 2.3 2.2 2.1 2.0 1.9 1 808 779 751 722 693 665 636 607 579 550 522 493 464 2 729 700 671 643 614 586 557 528 500 471 443 414 385 3 650 621 592 564 535 507 478 449 421 392 364 335 306 4 571 542 513 485 456 428 399 370 342 313 285 256 227 5 492 463 434 406 377 349 320 291 263 234 206 177 148 6 413 384 355 327 298 270 241 212 184 155 126 98 69 7 380 350 321 291 262 232 203 173 144 114 85 55 25 8 355 324 293 263 232 202 171 141 110 80 49 19 9 328 297 265 234 202 171 139 108 77 45 14

10 301 269 236 204 172 140 107 75 43 10 11 273 240 207 174 141 108 75 42 9 12 245 211 177 144 110 76 42 9 13 217 182 148 113 79 44 10 14 188 153 118 83 47 12 15 159 123 88 52 16 16 130 94 57 21 17 101 64 27 18 72 34 19 42 4 20 13

INSTALLATION OF INDOOR UNIT

ENGLISH

Electrical Wiring

Two kind of cables should be connected to the outdoor unit : One is ‘Power cable’, the other one is ‘Connecting cable’. Power cable is a cable which is used to supply external electricity to the outdoor unit. This cable is generally connected between external power source (such as main electric power distribution panel of user’s house) and the outdoor unit. Connecting cable is, on the other hand, used to connect between the outdoor unit and the indoor unit to supply electric power to the indoor unit and to establish the communication between the outdoor unit and the indoor unit.

Procedure for wiring to the outdoor unit is four steps. Before starting wiring, check if wire specification is suitable and read following directions and cautions VERY carefully.

CAUTION

The power cord connected to the outdoor unit should be complied with IEC 60245 or HD 22.4 S4 (This equipment shall be provided with a cord set complying with the national regulation.)

The connecting cable connected to the outdoor unit should be complied with IEC 60245 or HD 22.4 S4 (This equipment shall be provided with a cord set complying with the national regulation.)

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.

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.

When the connection line between the indoor unit and outdoor unit is over 40 m, connect the telecommunication line and power line separately.

20 mm

GN/YL

NORMAL CROSS-SECTIONAL AREA 0.75 mm

GN/YL

1 Phase(Ø)

3 Phase(Ø)

20 mm

GN/YL

Model Name

Area

(mm

)

Cable Type

Phase

(Ø)

Capacity

(kW)

H07RN-F

7 9

614

2.514

NORMAL CROSS-SECTIONAL AREA

INSTALLATION OF INDOOR UNIT

ENGLISH

Use round pressure terminals for connections to the power terminal block.

When none are available, follow the instructions below.

- Do not connect wiring of different thicknesses to the power terminal block. (Slack in the power wiring may cause abnormal heat.)

- When connecting wiring which is the same thickness, do as shown in the figure below.

Round pressure terminal

Power wire

Precautions when laying power wiring

WARNING

Make sure that the screws of the terminal are free from looseness.

- For wiring, use the designated power wire and connect firmly, then secure to prevent outside pressure being exerted on the terminal block.

- Use an appropriate screwdriver for tightening the terminal screws. A screwdriver with a small head will strip the head and make proper tightening impossible.

- Over-tightening the terminal screws may break them.

INSTALLATION OF INDOOR UNIT

ENGLISH

Point for attention regarding quality of the public electric power supply

- European/International Technical Standard setting the limits for voltage changes, voltage fluctuations and flicker in public low-voltage supply systems for equipment with rated current ≤ 75 A.

- European/International Technical Standard setting the limits for harmonic currents produced by equipment connected to public low-voltage systems with input current ≤16 A of > 75 A per phase.

For Split IWT

- This equipment complies with IEC (EN) 61000-3-12 in harmonic currents emission limits corresponding Rsce =33.

- This equipment complies with IEC (EN) 61000-3-3.

For Hydrosplit IWT/ 1 Phase

- This equipment complies with IEC (EN) 61000-3-12 in harmonic currents emission limits corresponding Rsce =33.

- This equipment complies with reference impedance for IEC (EN) 61000-3-11.

For Hydrosplit IWT/ 3 Phase

This equipment complies with IEC (EN) 61000-3-12 provided that the short-circuit power Ssc is greater than or equal to 1959 kVA at the interface point between the user’s supply and the public system. It is the responsibility of the installer or user of the equipment to ensure, by consultation with the distribution network operator if necessary, that the equipment is connected only to a supply with a short-circuit power Ssc greater than or equal to 1959 kVA.

- This equipment complies with IEC (EN) 61000-3-3.

1Ø Electric Heater

This equipment complies with IEC (EN) 61000-3-12 in harmonic currents emission limits corresponding Rsce =33.

This equipment complies with IEC (EN) 61000-3-3.

3Ø Electric Heater

This equipment complies with IEC (EN) 61000-3-2.

This equipment complies with IEC (EN) 61000-3-3.

INSTALLATION OF INDOOR UNIT

ENGLISH

Circuit Breaker Speciﬁcation

Perform the electrical wiring work according to the electrical wiring connection.

- All wiring must comply with local requirements.

- Select a power source that is capable of supplying the current required by the air conditioner.

- Use a recognized ELCB (Earth Leakage Circuit Breaker) between the power source and the unit. A disconnection device to adequately disconnect all supply lines must be fitted.

- Model of circuit breaker recommended by authorized personnel only.

Indoor Unit

ELCB

Outdoor Unit

Switch Box

Power Source Communication

Indoor Unit

ELCB

Outdoor Unit

Switch Box

ELCB

When the electrical phase of outdoor unit and heater is same

When the electrical phase of outdoor unit and heater is NOT same

Type

Capacity [kW]

Phase [Ø] Area [mm2] ELCB [A]

Split 5 / 7 / 9 1 4 16 / 20 / 25

Hydrosplit

12 / 14 / 16 1 6 40 12 / 14 / 16 3 2.5 16

Type

Capacity [kW]

Phase [Ø] Area [mm2] Maximum Current [A]

Electric Heater

2 / 4 1 4 11.1 / 19.9

6 3 2.5 11.1

PIPING AND WIRING FOR OUTDOOR UNIT

ENGLISH

Refrigerant Piping (For Split IWT)

Before starting refrigerant piping, constraints in pipe length and elevation should be examined. After resolving all constraints, some preparations are required to proceed. Then connecting pipe to the outdoor and the indoor unit is beginning.

Constraints in Pipe Length and Elevation

*Pipes and wires should be purchased separately for installation of the product.

CAUTION

1 For R32 products, standard pipe length is 5 m, If the pipe length is longer than 10 m,

additional charge of the refrigerant is required according to the table.

• Example : If R32 9 kW model is installed at a distance of 50 m, 1 600 g of refrigerant should be added according to following formula : (50-10) x 40 g = 1 600 g

2 Rated capacity of the product is based on standard length and maximum allowable length

is based on the product reliability in the operation.

3 Improper refrigerant charge may result in abnormal operation. 4 Oil trap should be installed every 10 meters.

Refrigerant

Capacity

(kW)

Pipe Diameter [mm(inch)] Length A (m) Elevation B (m)

Additional Refrigerant

(g/m)

Gas Liquid Standard Max. Max.

R32 5/7/9 15.88(5/8") 9.52(3/8") 5 50 30

(longer than 10 m)

NOTE

Fill in the f-gas Label attached on outdoor about the quantity of the fluorinated greenhouse gases (This note about f-gas label may not apply depending on your product type or market.)

① Manufacturing site (See Model Name label) ② Installation site (If possible being placed adjacent to the service points for the addition or

removal of refrigerant)

③ The total Charge (① + ②)

PIPING AND WIRING FOR OUTDOOR UNIT

Procedures about refrigerant piping, water piping and electric wiring at the outdoor are described in this chapter. Most of procedures are similar to those of LG Air Conditioner.

Indoor unit

Outdoor unit

Oil trap

Indoor unit

Outdoor unit

PIPING AND WIRING FOR OUTDOOR UNIT

ENGLISH

Step 1. Cut the pipes and the cable.

- Use the accessory piping kit or the pipes purchased locally.

- Measure the distance between the indoor unit and the outdoor unit.

- Cut the pipes a little longer than measured distance.

- Cut the cable 1.5 m longer than the pipe length.

Step 2. Burrs removal

- Completely remove all burrs from the cut cross section of pipe/tube.

- Put the end of the copper tube/pipe to downward direction as you remove burrs in order to avoid to let burrs drop in the tubing.

Step 3. Putting nut on

- Remove flare nuts attached to indoor and outdoor units, than put them on pipe/tube having completed burr removal. (Not possible to put them on after flaring work)

Step 4. Flaring work.

- Carry out flaring work using dedicated flaring tool as shown below.

- Firmly hold copper tube in a bar(or die) as indicated dimension in the table above.

Step 5. Check

- Compare the flared work with right figure.

- If flare is seemed to be defective, cut off the flared section and do flaring work again.

Preparation for Piping

- Main cause of gas leakage is defect in flaring work. Carry out correct flaring work in the following procedure.

- Use the de-oxidised copper as piping materials to install.

Inclined

Inside is shiny without scratches

Smooth all round

Even length

all round

Surface

damaged

Cracked Uneven

thickness

= Improper ﬂaring =

Copper

tube

90°

Slanted Uneven Rough

Pipe

Reamer

Point down

Flare nut

Copper tube

Pipe diameter

[inch(mm)]

A inch (mm)

Wing nut type Clutch type

1/4 (6.35) 0.04~0.05(1.1~1.3)

0~0.02 (0~0.5)

3/8 (9.52) 0.06~0.07(1.5~1.7) 1/2 (12.7) 0.06~0.07(1.6~1.8)

5/8 (15.88) 0.06~0.07(1.6~1.8)

3/4 (19.05) 0.07~0.08(1.9~2.1)

Bar

"A"

Copper pipe

PIPING AND WIRING FOR OUTDOOR UNIT

ENGLISH

Step 1. Pre-tightening.

- Align the center of the pipes and sufficiently tighten the flare nut by hand.

Step 2. Tightening.

- Tighten the flare nut with a wrench.

- Tightening torque is as following.

Outside diameter [mm(inch)] Torque [kgf·m]

6.35 (1/4) 1.8 ~ 2.5

9.52 (3/8) 3.4 ~ 4.2

12.7 (1/2) 5.5 ~ 6.6

15.88 (5/8) 6.6 ~ 8.2

19.05 (3/4) 9.9 ~ 12.1

Connecting Pipe to Indoor Unit

Connecting pipe to the indoor unit is two steps. Read following directions carefully.

Connecting Pipe to Outdoor Unit

Connecting pipe to the outdoor unit is five steps including PCB setting.

Step 1. Determine direction of pipes.

- The pipes can be connectable in three directions.

- The directions are expressed in below figure.

- When connecting in a downward direction, knock out the knock-out hole of the base pan.

- Detailed geometry may vary by model.

Indoor unit tubing Flare nut Pipings

Open-end wrench (ﬁxed)

Torque wrench

Indoor unit tubing

Flare nut

Connection pipe

Forward

Backward

Sideways

Knock-out Base pan

PIPING AND WIRING FOR OUTDOOR UNIT

ENGLISH

Step 2. Tightening

- Align the center of the pipes and sufficiently tighten the flare nut by hand.

- Tighten the flare nut with a wrench until the wrench clicks.

- Tightening torque is as following.

Step 3. Preventing entering of foreign objects

- Plug the pipe through-holes with putty or insulation material (procured locally) to fill up all gaps as shown in right figure.

- If insects or small animals enter the outdoor unit, it may cause a short circuit in the electrical box.

- Finally, form the pipes by wrapping the connecting portion of the indoor unit with insulation material and secure it with two kinds of vinyl tape. Ensuring thermal insulation is very important.

Continuous

Gas side piping

Outside diameter [mm(inch)] Torque [kgf·m]

6.35 (1/4) 1.8 ~ 2.5

9.52 (3/8) 3.4 ~ 4.2

12.7 (1/2) 5.5 ~ 6.6

15.88 (5/8) 6.6 ~ 8.2

19.05 (3/4) 9.9 ~ 12.1

Torque wrench

Outdoor unit

Liquid side piping

Connecting wire

Drain hose

Connection pipe

Putty or insulating material (produced locally)

PIPING AND WIRING FOR OUTDOOR UNIT

ENGLISH

Step 1. Connect the water pipes at outdoor unit.

- Check the location inlet and outlet.

- When the water pipes are connected. It must be tightened the nut with two wrench. Otherwise pipes can be deformed.

- Maximum allowable Torque at the water piping connection is 50 N·m

Step 2. Connect the water pipes at indoor unit.

- Before connecting pipes, use the provided gasket (G1”) for each pipe at indoor unit.

- Check the location inlet and outlet.

Step 3. After checking the water leaks and air purging, and then insulate water pipes.

- For venting, Install an air vent on the highest point of the water connection between outdoor and indoor unit.

Torque wrench

Water Out

Water In

Strainer

NOTE

Make sure that the water pipes are protected from freezing in case of heat pump failure or power outage (e.g. Anti-freeze valve, that drains the water if temperature drops too much.

NOTE

To protect the product, be sure to install a provided strainer on the outdoor unit water inlet pipe.

Water Piping (For Hydrosplit IWT)

Before starting water piping between outdoor unit and indoor unit, read chapter 7 described General considerations, water charging, and pipe insulations about water piping.

Inlet from

outdoor unit

Outlet to outdoor unit

PIPING AND WIRING FOR OUTDOOR UNIT

ENGLISH

Wiring Procedure for Power Cable and Connecting Cable

This cable is generally connected between external power source (such as main electric power distribution panel of user's house) and the unit. Before starting wiring, check if wire specification is suitable and read following directions and cautions VERY carefully.

(For Split) U36A Chassis

CAUTION

The Power cord connected to the unit should be selected according to the following specifications.

Step 1. : Disassemble side panel and front panel from the unit by loosing screws. Step 2. : Connect power cable to main power terminal

See below figure for detailed information. When connecting earth cable, the diameter of cable should be refer to the below table. The earth cable is connected to the Control box

case where earth symbol is marked. Step 3. : Use cable clamps (or cord clamps) to prevent unintended move of power cable. Step 4. : Reassemble the side panel to the unit by fastening screws.

Control Terminal (Terminal for Connecting Cable)

Main Power Terminal (Terminal for Power Cable)

Side Panel

Insulation pad

Cable Clamp (or Cord Clamp)

When connecting power cable, make sure the rubber bushes are properly attached in knock-out holes after removing the Insulation pad.

PIPING AND WIRING FOR OUTDOOR UNIT

ENGLISH

(For Hydrosplit) U60A Chassis

Failure to do these instruction can result in fire, electric shock or death.

• Make sure the power cable do not touch to copper tube.

• Make sure to fix [cord clamp] firmly to sustain the connection of terminal.

• Make sure to connect unit power & heater power separately.

UNIT POWERLOW VOLTAGE

CODE CLAMP

UNIT POWERLOW VOLTAGE

CODE CLAMP

U60A (1Ø : 12, 14, 16 kW) U60A (3Ø : 12, 14, 16 kW)

PIPING AND WIRING FOR OUTDOOR UNIT

ENGLISH

Water Outlet

Domestic Water In

Domestic Water Out

Water Inlet

CAUTION

After checking and confirming following conditions, start wiring work.

• Secure dedicated power source for the Air-to-Water heat pump. The wiring diagram (attached inside the control box of the indoor unit) is presenting related information.

• Provide a circuit breaker switch between power source and the outdoor unit.

• Although it is very rare case, sometimes the screws used to fasten internal wires can be loosen due to the vibration while product transportation. Check these screws and make it sure if they are all fastened tightly. If not tightened, burn-out of the wire can be occurred.

• Check the specification of power source such as phase, voltage, frequency, etc.

• Confirm that electrical capacity is sufficient.

• Be sure that the starting voltage is maintained at more than 90 percent of the rated voltage marked on the name plate.

• Confirm that the cable thickness is as specified in the power sources specification. (Particularly note the relation between cable length and thickness.)

• Provide an ELB(earth leakage breaker) when the installation place is wet or moist.

• The following troubles would be caused by abnormal voltage supply such as sudden voltage increasing or voltage drop-down.

- Chattering of a magnetic switch. (frequent on and off operation.)

- Physical damage of parts where magnetic switch is contacted.

- Break of fuse.

- Malfunction of overload protection parts or related control algorithms.

- Failure of compressor start up.

• Ground wire to ground outdoor unit to prevent electrical shock.

PIPING AND WIRING FOR OUTDOOR UNIT

ENGLISH

Finalizing (For Split)

After pipes are connected and electric cables are wired, pipe forming and some tests are remained. Especially, careful attention is required while proceeding leakage test because the leakage of the refrigerant effects degrade of performance directly. Also, it is very hard to find leaked point after all installation procedures are finished.

1. Pipe Forming

2. Taping Procedure

- Tape the pipes, connecting cable and power cable from down to up. If taping direction is up to down, rain drop may be sinking into the pipes or cables.

- Secure the taped pipe along the exterior wall using saddle or equivalent.

- Trap is required to prevent water from entering into electrical parts.

* Outdoor unit figure is a representative model U36A chassis.

Do pipe forming by wrapping the connecting cable and refrigerant pipe (between the indoor unit and outdoor unit) with thermal insulation material and secure it with two kinds of vinyl tape.

- Tape the refrigerant pipe, power cable and connecting cable from down to up.

- Secure the taped pipe is along with the exterior wall. Form a trap to prevent water entering the room and electrical part.

- Fix the taped pipe onto the wall by saddle or equivalent.

• Trap is required to prevent water from entering into electrical parts.

minimum 50 mm

Taping

Drain hose (not used)

Refrigerant Pipes

Connecting cable

Power Cable

PlasticPlastic bandband

Plastic band

Seal a small Seal a small opening around opening around the pipings with the pipings with gum type sealer.gum type sealer.

Seal a small opening around the pipings with gum type sealant.

Trap

Plastic band

Seal a small opening around the pipings with gum type sealer.

TrapTrapTrap

Seal a small opening Seal a small opening around the pipings around the pipings with gum type sealer.with gum type sealer.

Seal a small opening around the pipings with gum type sealant.

Drain hose

Pipe

Vinyl tape(narrow)

Wrap with vinyl tape(wide)

PIPING AND WIRING FOR OUTDOOR UNIT

ENGLISH

Finalizing (For Hydrosplit)

1. Condensate drainage The condensate water must be drained in a way that no ice can built-up and block the drainage

pipe. Prepare a gravel bed below the foundation and drain the water to the ground - below frost line. Alternative option (if ODU is installed next to the wall), is to drain the water into the building. In that case, the pipe must have an angle of more than 5%. Only in regions without longer periods of frost, it is acceptable to drain straight to the ground. The drainage pipe should have a suitable diameter (~ DN50).

2. Electrical connection Weather-proof cables must be used (e.g. NYY-type). It is recommended to protect the wires

additionally by using a ductwork (rigid or flexible hose). Refer to the installation example cases below.

- Case1, pre-insulated pipes are used that includes ductwork for power and sensor cables.

- Case2, the heating pipes and the wires are lead through the same ductwork.

3. Heating pipes The pipes must be insulated well. If the heat pump is used for

heating and cooling, make sure that the insulation material is suitable for cooling operation. If the pipes do not enter the building straight away (ODU installed at wall), the piped must be led through the ground below frost line. Make sure that the water pipes are protected from freezing in case of heat pump failure or power outage (e.g. Anti-freeze valve, that drains the water if temperature drops too much). Flexible hoses should be used to connect the outdoor installation with the building pipework (noise de-coupling). If the pipes (and cables) enter the building beliow the surface, make sure that no water can enter the building (e.g. by using a water-proof sealing).

0.2 m

Heat pump

Frost line

Condensate drain

0.2 m

0.3 m

0.3 m Heat pump

Frost line

< Gravel bed >

Condensate drain

> 5%

Gravel bed

Pre-insulated pipe

Cables

Heating pipes

Ductwork

Gravel bed with pre-installed ductwork.

Water-proof sealing

PIPING AND WIRING FOR OUTDOOR UNIT

ENGLISH

Leakage test and Evacuation (For Split IWT)

Air and moisture remaining in the refrigerant system have undesirable effects as indicated below.

- Pressure in the system rises.

- Operating current rises.

- Cooling(or heating) efficiency drops.

- Moisture in the refrigerant circuit may freeze and block capillary tubing.

- Water may lead to corrosion of parts in the refrigeration system. Therefore, the indoor/outdoor unit and connecting tube must be checked for leak tight, and

vacuumed to remove incondensable gas and moisture in the system.

Preparation

- Check that each tube(both liquid and gas side tubes) between the indoor and outdoor units have been properly connected and all wiring for the test run has been completed. Remove the service valve caps from both the gas and the liquid side on the outdoor unit. Check that both the liquid and the gas side service valves on the outdoor unit are kept closed at this stage.

Leakage test

- Connect the manifold valve(with pressure gauges) and dry nitrogen gas cylinder to this service port with charge hoses.

CAUTION

Be sure to use a manifold valve for leakage test. If it is not available, use a stop valve for this purpose. The "Hi" knob of the manifold valve must always be kept close.

• Pressurize the system to no more than 3.0 MPa with dry nitrogen gas and close the cylinder valve when the gauge reading reached 3.0 MPa Next, test for leaks with liquid soap.

To avoid nitrogen entering the refrigerant system in a liquid state, the top of the cylinder must be higher than its bottom when you pressurize the system. Usually, the cylinder is used in a vertical standing position.

• Do a leakage test of all joints of the tubing(both indoor and outdoor) and both gas and liquid side service valves. Bubbles indicate a leak. Be sure to wipe off the soap with a clean cloth

• After the system is found to be free of leaks, relieve the nitrogen pressure by loosening the charge hose connector at the nitrogen cylinder. When the system pressure is reduced to normal, disconnect the hose from the cylinder.

Outdoor unit

Manifold valve

Pressure

Lo Hi

gauge

Charge hose

Nitrogen gas cylinder(in vertical standing position)

Indoor unit

PIPING AND WIRING FOR OUTDOOR UNIT

ENGLISH

Evacuation

- Connect the charge hose end described in the preceding steps to the vacuum pump to evacuate the tubing and indoor unit. Confirm the "Lo and Hi" knob of the manifold valve is open. Then, run the vacuum pump. The operation time for evacuation varies with tubing length and capacity of the pump. The following table shows the time required for evacuation.

- When the desired vacuum is reached, close the "Lo and Hi" knob of the manifold valve and stop the vacuum pump.

Finishing the job

- With a service valve wrench, turn the valve stem of liquid side valve counter-clockwise to fully open the valve.

- Turn the valve stem of gas side valve counter-clockwise to fully open the valve.

- Loosen the charge hose connected to the gas side service port slightly to release the pressure, then remove the hose.

- Replace the flare nut and its bonnet on the gas side service port and fasten the flare nut securely with an adjustable wrench. This process is very important to prevent leakage from the system.

- Replace the valve caps at both gas and liquid side service valves and fasten them tight. This completes air purging with a vacuum pump. The air to water heat pump is now ready to test run.

Required time for evacuation when 30 gal/h

vacuum pump is used

If tubing length is less

than 10 m(33 ft)

If tubing length is

longer than 10 m(33 ft)

30 min. or more 60 min. or more

0.8 torr or less

Outdoor unit

Indoor unit

Manifold valve

Open

Vacuum pump

Lo Hi

Open

Pressure gauge

PIPING AND WIRING FOR OUTDOOR UNIT

ENGLISH

Electrical Wiring

General Consideration Followings are should be considered before beginning indoor unit wiring.

- Field-supplied electrical components such as power switches, circuit breakers, wires, terminal boxes, etc should be properly chosen with compliance with national electrical legislation or regulation.

- Make it sure that supplied electricity is enough to operate the product including outdoor unit, electric heater, water tank heater, etc. The capacity of fuse also selected according to the power consumption.

- The main electricity supply should be dedicated line. Sharing main electricity supply with other devices such as washing machine or vacuum cleaner is not permitted.

CAUTION

• Before starting wiring job, the main electricity supply should be turned off until wiring is completed.

• When adjusting or changing wiring, the main electricity supply should be turned off and ground wire should be connected securely.

• Installation place should be free from the attack of wild animal. For example, mice’s wire attacking or frog’s entering into the indoor unit may cause critical electrical accident.

• All power connections should be protected from dew condensation by thermal insulation.

• All electrical wiring should comply with national or local electrical legislation or regulation.

• The ground should be connected exactly. Do not earth the product to the copper pipe, steel fence at the veranda, city water outlet pipe, or any other conductivity materials.

• Fix all cable using cord clamp tightly. (When cable is not fixed with cord clamp, use additionally supplied cable ties.)

Conduits for electrical wiring

PIPING AND WIRING FOR OUTDOOR UNIT

ENGLISH

Terminal Block Information (For Split IWT)

Symbols used below pictures are as follows :

- L, L1, L2, L3 : Live (230 V AC)

- N : Neutral (230 V AC)

- BR : Brown , WH : White , BL : Blue , BK : Black

Terminal Block 1

Opening or closing

water ﬂow for FCU cooling

Power supply for 2

circuit kit

Mix Pump Mix Valve

2WAY VALVE

(A)

L N L1 L2 N L1 NL2

123456 87

Connection for

thermostat (230 V AC)

Supporting type : Heating

only or Heating/Cooling

THERMOSTAT

(Default : 230 V AC)

OUTDOOR UNIT

L N L1 L2 1(L) 32(N)

9101112 13 15 1614

Power supply for Indoor

unit and communication

Connecting external electric power

supply for internal backup heater

POWER SUPPLY

L3 : 1Ø, 220-240V, 50Hz ; 2kW; 16A

L3, L2 : 1Ø, 220-240V, 50Hz ; 4kW; 20A

L3, L2, L1 : 3Ø, 380-415V, 50Hz ; 6kW; 16A

L1 L2 L3 N

Terminal Block 2

Terminal Block 3

CN_COM CN_EXT

19 20

Connection for

Party

controller (5 V DC)

Connection for External

Controller

Terminal Block 4

CAUTION

Before electric wiring, please check model name

- Model : HN0916T NB1

Terminal

Block 4

Terminal

Block 1

Terminal

Block 2

Terminal

Block 3

PIPING AND WIRING FOR OUTDOOR UNIT

ENGLISH

Terminal Block 1

Terminal Block 2

Terminal Block 3

Terminal Block 4

Terminal Block Information (For Hydrosplit IWT)

Symbols used below pictures are as follows :

- L, L1, L2, L3 : Live (230 V AC)

- N : Neutral (230 V AC)

- BR : Brown , WH : White , BL : Blue , BK : Black

Opening or closing

water ﬂow for FCU cooling

Power supply for 2

circuit kit

Mix Pump Mix Valve

2WAY VALVE

(A)

L N L1 L2 N L1 NL2

123456 89107

Connection for

thermostat (230 V AC)

Supporting type :

Heating(L2) / Cooling(L1) /

DHW Heating(L3)

THERMOSTAT

(Default : 230 V AC)

OUTDOOR UNIT

L N L1 L2 L3 31(N) 2(N)

11 12 13 14 15 17 191816

Power supply for Indoor

unit and communication

Connecting external electric power

supply for internal backup heater

POWER SUPPLY

L3 : 1Ø, 220-240V, 50Hz ; 2kW; 16A

L3, L2 : 1Ø, 220-240V, 50Hz ; 4kW; 20A

L3, L2, L1 : 3Ø, 380-415V, 50Hz ; 6kW; 16A

L1 L2 L3 N

CN_MODBUS CN_EXT

22 23

Connection for

Party

controller (5 V DC)

Connection for External

Controller

CAUTION

Before electric wiring, please check model name

- Model : HN1616Y NB1

Terminal

Block 4

Terminal

Block 1

Terminal

Block 2

Terminal

Block 3

PIPING AND WIRING FOR OUTDOOR UNIT

ENGLISH

Connecting with Outdoor Unit

CAUTION

You should separate the communication wiring, in case of communication wiring length is over 40 M.

1(L)

2(N)

123

Terminal block at outdoor unit

The feature may be changed according to the type of model.

Power Supply Communication Wiring

Separation

Shield cable

HYDRAULIC CONNECTION FOR INDOOR UNIT

ENGLISH

Electric Heater Wiring

CAUTION

Power Cable Specification : The power cord connected to the electric heater should be complied with IEC 60245 or HD 22.4 S4(Rubber insulated cord, type 60245 IEC 66 or H07RN-F)

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.

20 mm

GN/YL

1 Phase(Ø)

NORMAL CROSS-SECTIONAL AREA 4 mm

(For 2kW, 4kW) (For 6kW)

(For 4kW)

Additional bridge Wire

from L3 to L2

NORMAL CROSS-SECTIONAL AREA 2.5 mm

3 Phase(Ø)

20 mm

GN/YL

External power supply

1Ø Electric Heater (2 kW)

- Input Fuse : 16 A

3Ø Electric Heater (6 kW)

- Input Fuse : 3 x 16 A

1Ø Electric Heater (4 kW)

- Input Fuse : 20 A

Terminal Block 3

at Indoor unit

External power supply

Terminal Block 3

at Indoor unit

External power supply

Terminal Block 3

at Indoor unit

It is necessary to connect

the bridge from L3 to L2

L1 L2 L3 N G

HYDRAULIC CONNECTION FOR INDOOR UNIT

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HYDRAULIC CONNECTION FOR INDOOR UNIT

Procedures about water piping at the indoor unit are described in this chapter. General considerations, water piping, water charging, and pipe insulations will be shown for

hydraulic connection procedures. The other accessories connection, such as DHW expansion vessel, buffer tank, thermostat, 2way valves, etc will be dealt in separated chapter.

General Considerations

Definition of terms are as follow :

- Water piping : Installing pipes where water is flowing inside the pipe.

- Water circuit connecting : Making connection between the product and water pipes or between pipes and pipes. Connecting valves or elbows are, for example, in this category.

Configuration of water circuit is shown in Chapter 2. All connections should be complied with presented diagram.

While installing water pipes, followings should be considered :

- While inserting or putting water pipes, close the end of the pipe with pipe cap to avoid dust entering.

- When cutting or welding the pipe, always be careful that inner section of the pipe should not be defective. For example, no weldments or no burrs are found inside the pipe.

- Drain piping should be provided in case of water discharge by the operation of the safety valve. This situation can be happened when the internal pressure is over 3.0 bar or water tank pressure is over 10.0 bar and then water inside the indoor unit will be discharged to drain hose.

- Recommended tightening torque is as following.

CAUTION

Followings are should be considered before beginning water circuit connection.

- Service space should be secured.

- Water pipes and connections should be cleaned using water.

- Space for installing external water pump should be provided if internal water pump capacity is not enough for installation field.

- Never connect electric power while proceeding water charging.

Size [inch] Recommended tightening torque [N.m]

G 3/4" 36 ± 2

G 1" 42 ± 2

HYDRAULIC CONNECTION FOR INDOOR UNIT

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While connecting water pipes, followings should be considered.

- Pipe fittings (e.g. L-shape elbow, T-shape tee, diameter reducer, etc) should be tightened strongly to be free from water leakage.

- Connected sections should be leakage-proof treatment by applying teflon tape, rubber bushing, sealant solution, etc.

- Appropriate tools and tooling methods should be applied to prevent mechanical breakage of the connections.

- Operation time of flow control valve(e.g. 3way valve or 2way valve) should be less than 90 seconds.

- Drain hose should be connected with drain piping.

- 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.

WARNING

Water condensation on the floor While cooling operation, it is very important to keep leaving water temperature higher than

16 °C. Otherwise, dew condensation can be occurred on the floor. If floor is in humid environment, do not set leaving water temperature below 18 °C.

Water condensation on the radiator While cooling operation, cold water may not flow to the radiator. If cold water enters to the

radiator, dew generation on the surface of the radiator can be occurred.

Drainage treatment While cooling operation, condensed dew can drop down to the bottom of the indoor unit. In

this case, prepare drainage treatment (for example, vessel to contain condensed dew) to avoid water drop.

HYDRAULIC CONNECTION FOR INDOOR UNIT

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Connection to the Domestic hot water system

The hydraulic connection has to be installed in accordance with the national and local regulations for connecting buffer tanks for DHW to enable the water flow in full force. To prevent water leakage, install a drain through the floor below the level of the device. The following picture shows the correct hydraulic connection of the device.

Water Piping

Connect the hot water pipe ①, the cold water supply ② and optionally the re-circulation pipe ③ as shown below. If a re-circulation pipe is not used, close it with a ¾’’ cap.

Use a counter wrench to tighten the connections firmly.

①

Hot water outlet – G3/4’’

②

Cold water supply – G3/4’’

③

Re-circulation pipe – G3/4’’

NOTE

Before connect domestic water pipes, use the provided gaskets(G3/4”) for each water pipe.

HYDRAULIC CONNECTION FOR INDOOR UNIT

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Shut-off valve

CAUTION

• Because different materials are used on the pipe installation, all connections on the device (cold and hot water, circulation, heat conductor) have to be galvanically isolated; otherwise corrosion of connections can occur on the inner side of the buffer tank for DHW. We recommend placing galvanic isolators made of red brass the length of at least twice the diameter of the pipe on the connections.

• The DHW tank is intended for storing drinking water, this is why the water has to be in accordance with the national regulations on drinking water in force; otherwise, damage to the device and a termination of the warranty can arise.

• The unit is equipped with a safety valve with a rated pressure of 1 MPa (10 bar).

• In addition, it is necessary to install either a DHW expansion vessel. Alternatively, another pressure relief valve must be installed with suitable set point lower than that of the safety valve. Such a valve would need to be equipped with a hose and connected to a sink.

Check valve

Pressure reducing valve

Circulation pump

Safety valve (10 bar)

Expansion vessel (Accessory)

Domestic hot water(DHW) Domestic cold water

DHW re-circulation (Optional)

HYDRAULIC CONNECTION FOR INDOOR UNIT

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Setting the pressure for the expansion vessel for DHW

• For proper operation of the expansion vessel, a suitable setting of the vessels operating pressure must be made. The pressure is set in regards to the pressure in the DHW system. The setting needs to be checked every 12 months.

• Expansion vessel for DHW is factory filled to a precharge pressure p

with dry nitrogen. The pressure must be set depending on the settings of the pressure reducing valve on the DHW supply to the building.

• The pressure in the expansion vessel must be set according to the following formula:

p0= prv− 0,2 bar

p0– pressure in the expansion vessel

– setting of the pressure reducing valve

NOTE

• The cold DHW connection must be fitted with an expansion vessel suitable for drinking water. The selection and installation must be in accordance with the standard DIN 4807 T5.

• An expansion vessel of 8 l volume – that can be integrated into the unit - is available as accessory.

• The actual size of the vessel must be decided by the installer. If a larger volume is needed, a third-party expansion vessel must be installed outside of the unit.

HYDRAULIC CONNECTION FOR INDOOR UNIT

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CAUTION

• Before connecting the device, it is necessary to rinse the pipe system thoroughly and remove impurities. Use suitable detergents if necessary.

• Thorough venting of the system has to be ensured. Otherwise, malfunctions in operation may occur.

Water Piping

Assemble the supplied ball valves before connecting the Inlet ① and Outlet ② pipes. Use a counter wrench to tighten the connections firmly.

①

Heating/Cooling inlet pipe – G1’’

②

Heating/Cooling outlet pipe – G1’’

③

Shut-off valve with integrated strainer

④

Shut-off valve

NOTE

Before connect heating water pipes, use the provided gaskets(G1”) for each water pipe.

Connection to the Heating system

The selection of circulation pumps, valves, safety elements and pipes has to be performed by the design engineer according to the heating/cooling capacity of the device and minimum water flow rate.

HYDRAULIC CONNECTION FOR INDOOR UNIT

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Setting the pressure for the expansion vessel p

• Before filling the system with water, check and set the pressure p0. The expansion vessel is factory set to the pressure specified on its data label. For correct operation of the system, set the pressure p0according to the equation below. The filling must not exceed the maximum operational pressure specified on the data label of the expansion vessel.

• Calculate the p

pressure value with the help of the equation:

p0[bar]= H[m]/10 + 0,2 [bar]

p0[bar] – pressure in the expansion vessel

min [bar] – minimum allowable pressure of the heating system

max [bar] – maximum allowable pressure of the heating system

H[m] – Height of the heating system (from expansion vessel to the highest heating body in the

building).

If the calculation shows a pressure lower than 1 bar, set the pressure of the expansion vessel to 1 bar.

• Set the amount of pressure in the expansion vessel by releasing or adding dry nitrogen.

• Record the new value of the pressure p

on the data label.

• Open the closing valve of the expansion vessel carefully, open the vents and close the drain.

CAUTION

• For normal operation of the expansion vessel, it is necessary to perform proper adjustments of the vessel’s working pressure. The integrated vessel is supplied with a factory pre-charge of 0.75 bar. The settings have to be checked every 12 months.

• Consider the maximal operational pressure of the vessel.

• Unsuitable charge of the expansion vessel with the pressure p

is the reason for incorrect

operation of the heating system.

H - Height of the heating system p

- Pressure of the safety valve.

Water Volume and Expansion Vessel Pressure

- The expansion vessel must be dimensioned in accordance with standard EN 12828. The integrated vessel has a volume of 12 liters. If the expansion volume is not enough, and additional vessel must be installed externally (Field supply).

- A buffer tank of 40 liters is provided as accessory. The accumulator is needed for hydraulic balancing, ensuring unobstructed flow and defrosting.

HYDRAULIC CONNECTION FOR INDOOR UNIT

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Water Charging

For water charging, please follow below procedures. Step 1. Open all valves of whole water circuit. Supplied water should be charged not only inside

the indoor unit, but also in the under floor water circuit, sanitary water tank circuit, FCU water circuit, and any other water circuits controlled by the product.

Step 2. Connect supply water into drain valve and fill valve located at the side of the shut-off

valve.

Step 3. Start to supply water. While supplying water, following should be kept.

- Pressure of supplying water should be 2.0 bar approximately.

- For supplying water pressure, time to be taken from 0 bar to 2.0 bar should be more than 1 minute. Sudden water supply can yield water drain through safety valve.

- Fully open the cap of air vent to assure air purging. If air is exist inside the water circuit, then performance degrade, noise at the water pipe, mechanical damage at the surface of electric heater coil.

Step 4. Stop water supplying when the pressure gauge located in front of the control panel

indicates 2.0 bar.

Step 5. Close drain valve and fill valve. Then wait for 20~30 seconds to observe water pressure

being stabilized.

Step 6. If following conditions are satisfactory, then go to step 7(pipe insulation). Otherwise, go

to step 3.

- Pressure gauge indicates 2.0 bar. Note that sometimes pressure in decreased after step 5 due to water charging inside expansion vessel.

- No air purging sound is heard or no water drop are popping out from air vent.

Pipe Insulation Purpose of water pipe insulation is :

- To prevent heat loss to external environment

- To prevent dew generation on the surface of the pipe in cooling operation

- Minimum insulation thickness recommendations ensure correct operation of the product, but local regulations may vary and must be followed.

CAUTION

No water-leakage permitted at the drain and fill valve. Leakage-proof treatment which is described in previous section should be applied.

Drain cock for draining

the DHW tank

Drain cock for filling and draining of the unit

* λ = 0.04 W/mk

Water Piping length

(m)

Minimum insulation

Thickness(mm)

<20 20 20~30 30 30~40 40 40~50 50

HYDRAULIC CONNECTION FOR INDOOR UNIT

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Pressure Drop

Water pump Capacity

The water pump is variable type which is capable to change flow rate, so it may be required to change default water pump capacity in case of noise by water flow. In most case, however, it is strongly recommended to set capacity as Maximum.

NOTE

• To secure enough water flow rate, do not set water pump capacity as Minimum. It can lead unexpected flow rate error CH14.

NOTE

When installing the product, install additional pump in consideration of the pressure loss and pump performance. If flow-rate is low, overloading of product can occur.

h Above data is valid at Rated flow-rate with delta-temperature of 5 Kevin. * Hydrosplit IWT should further consider the pressure drop depending on the length of

indoor and outdoor piping.

Capacity

[kW]

Rated flow-rate

[LPM]

Pump Head [m]

(at rated flow-rate)

Product pressure

drop [m]

(Plate heat exchanger)

Serviceable

Head [m]

9 25.9 6.8 2.9 3.9

7 20.1 7.8 1.8 6.0

5 15.8 8.2 1.1 7.1

Capacity

[kW]

Rated flow-rate

[LPM]

Pump Head [m]

(at rated flow-rate)

Product pressure

drop [m] *

(Plate heat exchanger)

Serviceable

Head [m]

16 46.0 8.9 1.4 7.5

14 40.3 9.6 1.1 8.5

12 34.5 10.2 0.8 9.4

(For Hydrosplit IWT)

(For Split IWT)

HYDRAULIC CONNECTION FOR INDOOR UNIT

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Performance curve

5, 7, 9 kW / For Split IWT Pump model (heating) : WILO Para KU 25-130/8-75/12 iPWM1

12, 14, 16 kW / For Hydrosplit IWT Pump model (heating) : Grundfos UPML 25-105 130 PWM A

100%

80%

70%

60%

50%

40%

30%

HYDRAULIC CONNECTION FOR INDOOR UNIT

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WARNING

Selecting a water flowrate outside the curves can cause damage to or malfunction of the unit.

Water flow (m3/h)

Head (m)

Pump model (DHW) : WILO ZRS 15/6-3 KU

HYDRAULIC CONNECTION FOR INDOOR UNIT

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Frost protection

In areas of the country where entering water temperatures drop below 0 °C, the water pipe must be protected by using an approved antifreeze solution. Consult your AWHP unit supplier for locally approved solutions in your area. Calculate the approximate volume of water in the system. (Except the AWHP unit.) And add six liters to this total volume to allow for the water contained in AWHP unit.

If you use frost protection function, change DIP switch setting and input the temperature condition in Installation mode of remote controller.

Antifreeze type

Antifreeze mixing ratio

0 °C -5 °C -10 °C -15 °C -20 °C -25 °C

Ethylene glycol 0 % 12 % 20 % 30 % - Propylene glycol 0 % 17 % 25 % 33 % - -

Methanol 0 % 6 % 12 % 16 % 24 % 30 %

Water Quality

Water quality should be complied with EN 98/83 EC Directives. Detailed water quality condition can be found in EN 98/83 EC Directives.

CAUTION

• The heating system has to be filled with water with the hardness between 5 °dH and 10 °dH. Malfunctions of the device because of water hardness are not covered by the warranty.

• A galvanic disconnection between individual elements of the heating system is obligatory.

• In the case of using grey steel pipes in the heating system, it is necessary to degrease them (the interior of the pipe) before connecting them to the heat pump.

• The water in the heating system has to be in accordance with the requirements of standard VDI 2035 and must not contain microorganisms. Before filling, the heating system has to be cleaned of all impurities.

• The heating system has to be thoroughly vented. You must prevent air, including diffusion air entering the device.

• It is strongly recommended to install an additional filter on the heating water circuit.

Especially to remove metallic particles from the heating piping, it is advised to use a magnetic or cyclone filter, which can remove small particles. Small particles may damage the unit and will NOT be removed by the standard filter of the heat pump system.

CAUTION

• Use only one of the above antifreeze.

• If a antifreeze is used, pressure drop and capability degradation of the system can be occurred.

• If one of antifreezes is used, corrosion can be occurred. So please add corrosion inhibitor.

• Please check the concentration of the antifreeze periodically to keep same concentration.

• When the antifreeze is used (for installation or operation), take care to ensure that antifreeze must not be touched.

• Ensure to respect all laws and norms of your country about Anti-freeze usage.

ACCESSORIES INSTALLATION

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ACCESSORIES INSTALLATION

can interface to various accessories to extend its functionality and to improve user

convenience. In this chapter, specifications about supported 3

party accessories and how to

connect to is introduced.

The Product is designed to work with the following LG accessories. Regarding any other compatible accessories refer to Product Databook or ask your local dealer.

Accessories supported by LG Electronics

Item Purpose Model

Buffer Tank (40l) For heating system - Integral at backside of unit OSHB-40KT

DHW Expansion Vessel (8l)

For DHW system - Integrable inside of unit OSHE-12KT

Dry contact

To receive on & off external signal PDRYCB000

Dry contact For Thermostat PDRYCB320

Meter Interface To measure production / consumption power PENKTH000

Wi-Fi Modem To enable remote system operation from smartphone PWFMDD200

Thermistor for 2

Circuit or E/heater

To interlock with 2ndcircuit operation and control temperature of main zone or To interlock with 3rdparty E/Heater and control temperature of water out 3rdparty E/Heater.

PRSTAT5K10

Extension Wire

To connect remote controller with Indoor PCB for communication

PZCWRC1

Cover Plate To relocate remote controller from indoor unit PDC-HK10

Remote air sensor

To control the unit using Room air as reference temperature

PQRSTA0

Extension cable To extend Wi-Fi modem cable PWYREW000

RS3 remote controller To control unit with 2 remote controllers PREMTW101

2-Remo Control Wire The wire for 2 remo control PZCWRC2

Central controller To control and communicate the products

AC EZ Touch (PACEZA000) AC Smart 5 (PACS5A000) ACP 5 (PACP5A000) AC Manager 5 (PACM5A000)

ESS

To control the operation mode according to the energy storage state

(For Hydrosplit IWT) HOME 8 (PCS): D008KE1N211 HOME10(PCS): D010KE1N211 HB7H(Battery): BLGRESU7H HB10H(Battery): BLGRESU10H

ACCESSORIES INSTALLATION

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WARNING

Followings should be kept before installation

• Main power must be turned off during installing accessories.

• 3

party accessories should be comply with supported specification.

• Proper tools should be chosen for installation.

• Never do installation with wet hands.

Before Installation

Accessories supported by 3rdparty Companies

Item Purpose Specification

Thermostat To control by air temperature

• Heating-Only type (230 V AC)

• Cooling/Heating type (230 V AC with Mode selection switch)

• For Hydrosplit IWT, Heating / Cooling / DHW Heating type

Mix Kit To use mixing circuit

• Mixing valve

• Mix pump

3rdParty Boiler To use auxiliary boiler.

3rdParty Controller

To connect external controller using modbus protocol

2way valve and actuator

To control water flow for Fan Coil Unit

2 wire,NO(Normal Open) or NC(Normal Closed) type, 230 V AC

External Pump

To control the water flow at the rear of the buffer tank

Smart Grid

To control operation mode depending on input signal from provider

3rdParty ESS

To control the operation mode according to the energy storage state

For Hydrosplit IWT

ACCESSORIES INSTALLATION

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Domestic hot water expansion vessel – integrated into the unit

How to install DHW expansion vessel [OSHE-12KT]

Step 1. The vessel is delivered with a connection pipe(①). Screw the pipe to the dedicated

port(③) inside of the unit.

① DHW expansion vessel ② Connection pipe

③ The port for DHW expansion vessel ④ The Holder for DHW expansion vessel ⑤ Domestic hot water outlet pipe ⑥ Domestic cold water inlet pipe ⑦ DHW Re-circulation pipe

①

②

⑤

⑥

⑦ ③

④

ACCESSORIES INSTALLATION

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Buffer tank – integrated into the unit

How to install Buffer tank [OSHB-40KT]

Step 1. Attach the buffer tank at the backside of the indoor unit and secure the provided holder

with one screw on each side.

① Insulated buffer tank ② Outlet pipe assembly ③ Inlet pipe assembly ④ Buffer tank holder ⑤ Double nipple 1’’

①

②

③

④

⑤

Step 2. Place the vessel (①) on top of the holder (④) and fasten the connection pipe from below.

Connection part

①

④

ACCESSORIES INSTALLATION

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Step 2. Use the Shut-off valve with strainer supplied with the indoor unit and mount it to the inlet

pipe assembly. Then screw the double nipple to the bottom part of the valve.

Then, attach the assembly as shown in the picture.

ACCESSORIES INSTALLATION

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Step 3. Connect the outlet pipe assembly and the Shut-off valve – provided with the indoor unit –

as shown below.

Step 4. Finally, assemble the Return pipe from the Heating system at the free connector.

① Shut-off valve with strainer ② Shut-off valve ③ Outlet pipe ④ Inlet pipe

①

②

③

④

ACCESSORIES INSTALLATION

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Following location should be avoid to secure proper operation :

- Height from floor is approximately 1.5 m.

- Thermostat can not be located where the area may be hidden when door is open.

- Thermostat can not be located where external thermal influence may be applied. (such as above heating radiator or open window)

Thermostat

Thermostat is generally used to control the product by air temperature. When thermostat is connected to the product, the product operation is controlled by the thermostat.

Installation condition

CAUTION

• USE 220-240 V~ Thermostat

• Some electro-mechanical type thermostat has internal delay time to protect compressor. In that case, mode change can takes time more than user's expectation. Please read thermostat manual carefully if the unit does not response quickly.

• Setting temperature range by thermostat can be different with that of the unit. The heating or cooling set temperature should be chosen within the setting temperature range of the unit.

• It is highly recommended that the thermostat should be installed where space heating is mainly applied.

Thermostat

Sun ray contact area

Direct

yes

5 ft

(1.5 m)

ACCESSORIES INSTALLATION

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General Information

The Heat Pump supports following thermostats.

(1) There is no electric circuit inside the thermostat and electric power supply to the thermostat is

not required.

(2) Electric circuit such as display, LED, buzzer, etc is included in the thermostat and electric

power supply is required.

(3) Thermostat generates "Heating ON or Heating OFF" signal according to user"s heating target

temperature.

(4) Thermostat generates both "Heating ON or Heating OFF" and "Cooling ON or Cooling OFF"

signal according to user"s heating and cooling target temperature.

(5) For Hydrosplit IWT, Thermostat generates "Heating ON or Heating OFF", "Cooling ON or

Cooling OFF", "DHW Heating ON or DHW Heating OFF" signal according to user’s heating, cooling and DHW heating target temperature.

CAUTION

Choosing heating / cooling thermostat

• Heating / cooling thermostat must have "Mode Selection" feature to distinguish operation mode.

• Heating / cooling thermostat must be able to assign heating target temperature and cooling target temperature differently.

• If above conditions are not kept, the unit can not operation properly.

• Heating / cooling thermostat must send cooling or heating signal immediately when temperature condition is satisfied. No delay time while sending cooling or heating signal is permitted.

Type Power Operating Mode Supported

Mechanical (1) 230 V~

Heating Only (3) Yes

Heating / Cooling (4) Yes

Heating / Cooling / DHW Heating (5) Yes

Electrical (2) 230 V~

Heating Only (3) Yes

Heating / Cooling (4) Yes

Heating / Cooling / DHW Heating (5) Yes

ACCESSORIES INSTALLATION

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How to wire thermostat (For Split IWT)

Follow below procedures Step 1 ~ Step 5. Step 1. Uncover front cover of the unit and open the control box. Step 2. Identify the power specification of the thermostat. If it is 220-240 V~, go to Step 3. Step 3. If it is Heating only thermostat, go to step 4. Otherwise, if it is Heating / cooling

thermostat, go to step 5.

Step 4. Find terminal block and connect wire as below. After connecting, go to final check step.

WARNING

Mechanical type thermostat. Do not connect wire (N) as mechanical type thermostat

does not require electric power supply.

(L) : Live signal from PCB to thermostat (N) : Neutral signal from PCB to thermostat (H) : Heating signal from thermostat to PCB

Step 5. Find terminal block and connect wire as below.

(L) : Live signal from PCB to thermostat (N) : Neutral signal from PCB to thermostat (C) : Cooling signal from thermostat to PCB (H) : Heating signal from thermostat to PCB

CAUTION

Do not connect external electric loads. Wire (L) and (N) should be used only for operation electric

type thermostat. Never connect external electric loads such as valves, fan coil units, etc. If connected, Main PCB (Heater) can be seriously damaged.

WARNING

Mechanical type thermostat. Do not connect wire (N) as mechanical type thermostat

does not require electric power supply.

CAUTION

Do not connect external electric loads. Wire (L) and (N) should be used only for operation

Electric type thermostat. Never connect external electric loads such as valves, fan

coil units, etc. If connected, Main PCB (Heater) can be seriously damaged.

9101112 L N L1 L2

THERMOSTAT

(Default : 230 V AC)

(L) (N) (H)

Thermostat

9101112

L N L1 L2

THERMOSTAT

(Default : 230 V AC)

(L) (N) (C) (H)

Thermostat

ACCESSORIES INSTALLATION

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How to wire thermostat (For Hydrosplit IWT)

Follow below procedures Step 1 ~ Step 3. Step 1. Uncover front cover of the unit and open the control box. Step 2. Identify the power specification of the thermostat. If it is 220-240 V~, go to Step 3. Step 3. Find terminal block and connect wire as below.

WARNING

Mechanical type thermostat. Do not connect wire (N) as mechanical type thermostat does not require electric power

supply.

(L) : Live signal from PCB to thermostat (N) : Neutral signal from PCB to thermostat (C) : Cooling signal from thermostat to PCB (H) : Heating signal from thermostat to PCB (D) : DHW Heating signal from thermostat to PCB

Final check

• DIP switch setting : Set DIP switch No. 8 to ‘ON’. Otherwise, the unit can not recognize the thermostat.

• Remote Controller :

- ‘Thermostat’ text is displayed on the remote controller.

- Button input is prohibited.

CAUTION

Do not connect external electric loads. Wire (L) and (N) should be used only for operation electric type thermostat.

Never connect external electric loads such as valves, fan coil units, etc. If connected, Main PCB (Heater) can be seriously damaged.

11 12 13 14 15 L N L1 L2 L3

THERMOSTAT

(Default : 230 V AC)

(L) (N) (C) (H) (D)

Thermostat

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Mixing Circuit

The mixing circuit is generally used to control the temperature of 2 rooms differently. To use the mixing circuit, you need to prepare a separate Mix Kit. The mix kit must be installed in the main zone.

h To use a floor combination during cooling operation, the flow through the floor of the flow

must be blocked by the 2 way valve.

[Install Guide Mixing circuit Cooling]

[Install Guide Mixing circuit [Install Guide Mixing circuit Heating]]

For Split IWT

Circuit 2

Circuit 1

Floor (35°C)

Convector

(FCU, 45 °C)

Radiator (45 °C) Radiator (55 °C)

Floor (35 °C)

○

X X X

Convector (FCU, 45 °C)

○ ○ ○

Radiator (45 °C)

○ ○ ○

Radiator (55 °C)

○ ○ ○ ○

Circuit 2

Circuit 1

Floor (18 °C)

Convector

(FCU, 5 °C)

Floor (18 °C)

○

Convector (FCU, 5 °C)

○ ○

[Install Guide Mixing circuit Cooling]

[Install Guide Mixing circuit [Install Guide Mixing circuit Heating]]

For Hydrosplit IWT

Circuit 2

Circuit 1

Floor (35°C)

Convector

(FCU, 45 °C)

Radiator (45 °C) Radiator (55 °C)

Floor (35 °C)

○ ○ ○ ○

Convector (FCU, 45 °C)

○ ○ ○ ○

Radiator (45 °C)

○ ○ ○ ○

Radiator (55 °C)

○ ○ ○ ○

Circuit 2

Circuit 1

Floor (18 °C)

Convector

(FCU, 5 °C)

Floor (18 °C)

○ ○

Convector (FCU, 5 °C)

○ ○

NOTE

- Circuit 2 : zone where the water temperature is lowest when heating.

- Circuit 1 : The other zone

ACCESSORIES INSTALLATION

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How to Wire Mixing Kit (For Split IWT)

Follow below procedures Step 1 ~ Step 3. Step 1. Uncover front cover of the unit. Step 2. Find terminal block and connect wire as below

(L) : Live signal from PCB to mix pump (N) : Neutral signal from PCB to mix pump (L1) : Live signal (for Normal* Closed type) from PCB to

mixing valve

(L2) : Live signal (for Normal Open type) from PCB to mixing

valve

(N1) : Neutral signal from PCB to mixing valve

*Closed = NOT Mixed

Step3. Insert the temperature sensor to 'CN_MIX_OUT' (Brown) of the main PCB as shown

below. The sensor should be mounted correctly to discharge pipe of mix pump as shown below.

NOTE

• Temperature sensor specification: Type : Thermistor,NTC

Resistance at 25 °C : 5 kΩ Minimum operating temperature range : -30 °C~100 °C

1234N5

L N L1 L2

MIX

PUMP

(L) (N) (L1) (L2) (N1)

MIXING VALVE

MIX

PUMP

MIXING VALVE

CN_MIX_OUT

[Circuit 2] Mixing Circuit

Indoor PCB

Mix

Mix Kit

Buffer

Tank

Mixing circuit temp. sensor

Floor heating loop

[Circuit 1] Direct Circuit

Radiator Radiator

ACCESSORIES INSTALLATION

ENGLISH

How to Wire Mixing Kit (For Hydrosplit IWT)

Follow below procedures Step 1 ~ Step 3. Step 1. Uncover front cover of the unit. Step 2. Find terminal block and connect wire as below

(L) : Live signal from PCB to mix pump (N) : Neutral signal from PCB to mix pump (L1) : Live signal (for Normal* Closed type) from PCB to

mixing valve

(L2) : Live signal (for Normal Open type) from PCB to mixing

valve

(N1) : Neutral signal from PCB to mixing valve

*Closed = NOT Mixed

Step3. Insert the temperature sensor to 'CN_MIX_OUT' (Brown) of the main PCB as shown

below. The sensor should be mounted correctly to discharge pipe of mix pump as shown below.

NOTE

• The location of the external pump may vary depending on the installer settings.

• Temperature sensor specification: Type : Thermistor,NTC Resistance at 25 °C : 5 kΩ Minimum operating temperature range : -30 °C~100 °C

1234N5

L N L1 L2

MIX

PUMP

(L) (N) (L1) (L2) (N1)

MIXING VALVE

MIX

PUMP

MIXING VALVE

CN_MIX_OUT

[Circuit 2] Mixing Circuit

Mix

Mixing circuit temp. sensor

Indoor PCB

Mix Kit

Buffer

Tank

Floor heating loop

[Circuit 1] Direct Circuit

Radiator Radiator

ACCESSORIES INSTALLATION

ENGLISH

[Thermistor for Mixing circuit]

Sensor Sensor Holder Sensor Connector

Follow below procedures step 1 ~ step 4. Step 1. Install sensor connector to discharge pipe of mix pump.

(Welding must be performed to connect the sensor connector to the pipe) Step 2. Check if the power of the unit is turned off. Step 3. Fasten the sensor connector to the sensor holder as shown in the figure below. Step 4. Insert harness into PCB(CN_MIX_OUT) fully and fix the thermal sensor into tube

connector as shown below.

ACCESSORIES INSTALLATION

ENGLISH

3rdParty Boiler

The product can be used by connecting an Auxiliary boiler. 3rdparty boiler can be controlled by manually via RS3 remote controller or automatically itself by means of comparing the outside air temperature and the preset temperature.

How to wire 3rdparty boiler

Follow below procedures step 1 ~ step 3. Step 1. Check if the power of the unit is turned off. Step 2. Disassemble front panels and Distinguish terminal block in Indoor PCB. Step 3. Connect Power cable to terminal block fully.

(For Hydrosplit IWT)

(For Split IWT)

TB_BOILER

3rd party boiler

Indoor PCB

(Voltage free)

Indoor PCB

EXT_BOILER

3rd party boiler

(Voltage free)

ACCESSORIES INSTALLATION

ENGLISH

3rdParty Controller

The product can also be linked to 3rdparty controller. You can connect external controllers using Modbus protocol except for LG controller. If 3

party controller is used, LG controller is not

applied to AWHP simultaneously.

How to wire 3rdparty controller

Follow below procedures step 1 ~ step 4.

Step 1. Check if the power of the unit is turned off. Step 2. Disassemble front panels and distinguish control box(Indoor) of the unit. Step 3. Check if the harness(White) is inserted fully to the indoor unit PCB. Step 4. Connect the 3

party controller to terminal block 4 completely. (including Meter interface

module)

(For Hydrosplit IWT)

(For Split IWT)

Indoor PCB

CN_COM

CN_MODBUS

17 18

CN_COM

1(L) 2(N)

3rd PARTY

CONTROLLER

or METER

INTERFACE(LG)

20 21

CN_MODBUS

1(L) 2(N)

3rd PARTY

CONTROLLER

or METER

INTERFACE(LG)

ACCESSORIES INSTALLATION

ENGLISH

Follow below procedures step 1 ~ step 4. Step 1. Check if the power of the unit is turned off. Step 2. Disassemble front panels and Distinguish control box(Indoor) of the unit. Step 3. Check if the harness(White) is inserted fully to the indoor unit PCB. Step 4. Connect the external pump to terminal block 4.

Meter Interface

This product can be used by connecting the meter interface module supplied in the field. The meter interface module can communicate with the wired remote controller. The meter interface module lets you know the amount of power generated by the product.

- For detailed installation method refer to meter interface Installation Manual.

How to wire Meter Interface

[Parts of Meter interface]

Meter interface body

(For Hydrosplit IWT)

(For Split IWT)

Indoor PCB

CN_COM

CN_MODBUS

17 18 17: Black

Meter interface

20 21 20: Black

CN_MODBUS

Meter interface

CN_COM

18: White

21: White

ACCESSORIES INSTALLATION

ENGLISH

Central Controller

The product can communicate and control through the central controller. The following functions can be controlled in the central control linked state (Operation/Stop, Desired temperature, Hot water operation / stop, Warm water temperature, Full lock, Etc)

Accessories for Central controller

How to Installation PI485

Fix the PI485 PCB as shown in below images. For detailed installation method refer to PI485 Installation Manual

Item Purpose Model

ACP 5

To control AWHP using LG central controller

PACEZA000

AC Smart 5 PACS5A000

ACP Ez Touch PACP5A000

Item Purpose Model

PI485 Gateway To connect LG Central Controller / Modbus PMNFP14A1

Modbus RTU Gateway

To communicate and control BMS /

3rdparty controller directly.

PMBUSB00A

LG Central controller

Product Heating Capacity : 12 kW, 14 kW, 16 kW U60A Chassis



NOTE

• PI485 is required for central controller.

• For Hydrosplit IWT, When Modbus protocol is used, PI485 and Modbus RTU Gateway are not required.

100

ACCESSORIES INSTALLATION

ENGLISH

How to Installation Modbus gateway

Connect the Modbus gateway as shown in below diagram. For detailed installation method refer to Modbus gateway Installation Manual.

Product Heating Capacity : 5 kW, 7 kW, 9 kW U36A Chassis

- For detailed installation instructions, refer to the manual included in the accessories.



PI485

Outdoor unit PCB

A+

B-

DI1

CH1

12VDC

RS485

LD01M

LD04M

LD06M

LD02M

LD03M

LD05M

1234 12 34

SW_01M

SW_02M

RST_2

RS485 DIGITAL OUPUT

CH2

A+

B-

DI2

DIGITAL INPUT

BMS/

party controller

DI3

DI4

GND

SW1

DO1

DO2

CN_CENTRAL

CN_OUT

Modbus gateway

LG HN0916T INSTALLATION MANUAL

Specifications and Main Features

Frequently Asked Questions

User Manual