LG THERMA V Series 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

MFL67212828

Rev.00_051519

ENGLISH FRANÇAIS

ΕΛΛΗΝΙΚΆ

TABLE OF CONTENTS

ENGLISH

5 PREFACE

6 IMPORTANT SAFETY INSTRUCTIONS

12 INSTALLATION PART

13 GENERAL INFORMATION

13 Model Information

15 Model name and related information

16 Parts and Dimensions

19 Control Parts

20 Control Panel

23 Typical Installation Example

24 Cycle Diagram

25 INSTALLATION

25 Transporting the Unit

26 Selection of the best location

28 Installation Space

32 Collective / Continuous Installation for roof top use

33 Installation at Seaside

33 Seasonal wind and cautions in winter

35 INSTALLATION OF INDOOR UNIT

35 Electrical Wiring

38 Drill a Hole in the Wall

38 PIPING AND WIRING FOR OUTDOOR UNIT

38 Refrigerant Piping

39 Preparation for Piping

40 Connecting Pipe to Indoor Unit

40 Connecting Pipe to Outdoor Unit

43 Finalizing

44 Leakage test and Evacuation

46 Electrical Wiring

49 PIPING AND WIRING FOR INDOOR UNIT

49 Water Piping and Water Circuit Connection

53 Water pump Capacity

53 Water Quality

54 Frost protection

TABLE OF CONTENTS

ENGLISH

55 ACCESSORIES INSTALLATION

57 Before Installation

57 Thermostat

60 3rd Party Controller

61 Central Controller

62 DHW Tank

63 Dry Contact

65 External Controller - Setting up programmable digital input operation

66 Remote Temperature Sensor

68 External pump

69 Wi-ﬁ Modem

70 Smart Grid

71 3Way Valve(A)

72 CONFIGURATION

72 DIP Switch Setting

78 SERVICE SETTING

78 How to enter service setting

78 Service setting

79 Service contact

80 Model information

81 RMC version lnformation

82 Open source license

83 INSTALLER SETTING

83 How to enter installer setting

84 Installer setting

86 3 Minutes Delay

87 Select Temperature Sensor

88 Dry Contact Mode

89 Central Control Address

90 Pump test run

91 Air heating set temp.

92 Water heating set temp

93 DHW set temp

94 Tank disinfection setting 1, 2

95 Tank setting 1

96 Tank setting 2

98 DHW time setting

99 TH on/off Variable, heating air

100 TH on/off Variable, heating water

101 Heating temp. setting

TABLE OF CONTENTS

ENGLISH

102 Pump setting in heating

103 Forced operation

104 CN_CC

105 Smart Grid(SG)

106 IDU Address Veriﬁcation

107 CN_EXT

108 Use External Pump

109 Pump Prerun/Overrun

110 Data logging

111 Password Initialization

112 Power Supply Blockage (SG Ready)

113 Overview settings

115 COMMISSIONING

115 Check List before Starting Operation

116 Starting Operation

117 Starting Operation ﬂow chart

117 Airborne Noise Emission

117 Limiting concentration(R410A)

118 Troubleshooting

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, 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.

IMPORTANT SAFETY INSTRUCTIONS

ENGLISH

IMPORTANT SAFETY INSTRUCTIONS

READ ALL INSTRUCTIONS BEFORE USING THE APPLIANCE.

Always comply with the following precautions to avoid

dangerous situations and ensure peak performance of your

product.

WARNING

It can result in serious injury or death when the directions are

ignored.

CAUTION

It can result in minor injury or product damage when the

directions are ignored.

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.

• 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.

Read the precautions in this manual carefully before operating the

unit.

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.

IMPORTANT SAFETY INSTRUCTIONS

ENGLISH

• Always install a dedicated circuit 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.

• 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.

IMPORTANT SAFETY INSTRUCTIONS

ENGLISH

Operation

• Take care to ensure that power cable could not be pulled out

or damaged during operation.

- There is risk of fire or electric shock.

• Do not place anything on the power cable.

- There is risk of fire or electric shock.

• Do not 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.

IMPORTANT SAFETY INSTRUCTIONS

ENGLISH

- There is risk of electric shock or fire.

• Do not touch refrigerant pipe and water pipe or any internal

parts while the unit is operating or immediately after operation.

- There is risk of burns or frostbite, personal injury.

• If you touch the pipe or internal parts, you should be wear

protection or wait time to return to normal temperature.

- Otherwise , it may cause burns or frostbite, personal injury.

• 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.

IMPORTANT SAFETY INSTRUCTIONS

ENGLISH

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.

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 circuit 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

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