LG THERMA V Bedienungsanleitung

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

MFL68681837

Rev.00_010323

ENGLISH ITALIANO ESPAÑOL FRANÇAIS DEUTSCH

ΕΛΛΗΝΙΚΆ

ČEŠTINA

NEDERLANDS

POLSKI

LIMBA ROMÂNĂ

PORTUGUÊS

MAGYAR

БЪЛГАРСКИ

SRPSKI

HRVATSKI

SLOVENŠČINA

DANSK

TABLE OF CONTENTS

ENGLISH

PREFACE

[Chapter 1]

SAFETY INSTRUCTIONS

[Chapter 2]

INSTALLATION PART

[Chapter 3]

GENERAL INFORMATION

Model Information

Related Information

Parts and Dimensions

Control Parts

Control Panel

Typical Installation Example

Cycle Diagram

Water cycle

[Chapter 4]

INSTALLATION OF OUTDOOR UNIT

Conditions where Outdoor Unit is Installed

Drill a Hole in the Wall

Multiple installation

Transporting the Unit

Installation at Seaside

Seasonal wind and cautions in winter

TABLE OF CONTENTS

ENGLISH

[Chapter 5]

INSTALLATION OF INDOOR UNIT

Conditions where Indoor Unit is Installed

Floor area requirement : Indoor unit

Ventilation requirements

Electrical Wiring

[Chapter 6]

PIPING AND WIRING FOR OUTDOOR UNIT

Refrigerant Piping

Preparation for Piping

Connecting Pipe to Indoor Unit

Connecting Pipe to Outdoor Unit

Finalizing

Leakage test and Evacuation

[Chapter 7]

PIPING AND WIRING FOR INDOOR UNIT

Water Piping and Water Circuit Connection

Water pump Capacity

Pressure Drop

Performance curve

Water Quality

Frost protection by antifreeze

Water Volume and Expansion Vessel Pressure

Electrical Wiring

[Chapter 8]

ACCESSORIES INSTALLATION

Before Installation

Thermostat

TABLE OF CONTENTS

ENGLISH

2nd Circuit

3rd Party Boiler

3rd Party Controller

Meter Interface

Central Controller

DHW Tank

DHW Tank Kit

Solar Thermal Kit

Dry Contact

External Controller - Setting up programmable digital input operation

Remote Temperature Sensor

100

Solar pump

101

External pump

102

Wi-ﬁ Modem

103

Energy State

104

Digital Input for energy saving (ESS, Smart Grid)

105

2Way Valve

106

3Way Valve(A)

107

Final check

[Chapter 9]

108

CONFIGURATION

108

DIP Switch Setting

114

SERVICE SETTING

114

How to enter service setting

114

Service setting

115

Service contact

116

Model information

117

RMC version Information

118

Open source license

119

INSTALLER SETTING

119

How to enter installer setting

120

Installer Setting

123

Select Temperature Sensor

TABLE OF CONTENTS

ENGLISH

124

Use Heating Tank Heater

125

Mixing Circuit

127

Use External Pump

128

RMC master/slave

129

LG Therma V Conﬁguration

130

Forced operation

131

Pump Prerun/Overrun

132

Water Flow Control

133

Energy Monitoring

134

Anti-Freezing Option 1

135

Password Reset

136

Screed drying

138

Heater on temperature

140

Air heating set temp.

141

Water heating set temp.

142

Hysteresis Room Air(Heating)

143

Hysteresis Heating Water

144

Heating temp. setting

145

Pump setting in heating

146

Air cooling set temp.

147

Water cooling set temp.

148

Water supply off temp. during cooling

150

Hysteresis Room Air(Cooling)

151

Hysteresis Cooling Water

152

Cooling temp. setting

153

Pump setting in cooling

154

Seasonal auto temp.

157

Heater priority

158

DHW set temp.

159

Tank disinfection setting 1, 2

160

Tank setting 1

161

Tank setting 2

163

DHW time setting

165

Recirculation time

166

Solar Thermal System

168

Pump test run

169

Frost Protection Temp.

170

BUH for DHW in emerg.

TABLE OF CONTENTS

ENGLISH

171

Dry Contact Mode

172

Central Control Address

173

CN_CC

174

Energy state

177

Thermostat control type

178

Pump operation time

179

IDU operation time

180

Modbus Address

181

Modbus gateway memory map

184

CN_EXT

185

3rd Party Boiler

186

Meter Interface

187

Current ﬂow rate

188

Data logging

[Chapter 10]

189

COMMISSIONING

189

Check List before Starting Operation

190

Starting Operation

191

Starting Operation ﬂow chart

191

Airborne Noise Emission

192

Vacuum & Charge of Refrigerant

195

Trouble shooting

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.

* The feature may be vary according to the type of model.

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, refrigerant and water cycle diagram, parts

and dimensions, electrical wiring diagrams, 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

• Constrains when accessories are installed

Chapter 6

• How to perform piping (for refrigerant) and wiring at the outdoor unit.

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

• Electrical wiring at the outdoor unit.

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

• Test operation and check point while test running.

Chapter 10

• Check points before starting operation are explained.

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

SAFETY INSTRUCTIONS

ENGLISH

Read the precautions in

this manual carefully

before operating the unit.

This 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.

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.

SAFETY INSTRUCTIONS

ENGLISH

• For electrical work, contact the dealer, seller, a qualified

electrician, or an Authorized Service Center.

- There is risk of fire or electric shock.

• Always ground the unit.

- There is risk of fire or electric shock.

• Install the panel and the cover of control box securely.

- There is risk of fire or electric shock.

• Always install a dedicated circuit and breaker.

- Improper wiring or installation may cause fire or electric

shock.

• Use the correctly rated breaker or fuse.

- There is risk of fire or electric.

• 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.

SAFETY INSTRUCTIONS

ENGLISH

• 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.

• 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.

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