LG Therma V AHUW096A3 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

MFL68681810

Rev.04_062218

ENGLISH ITALIANO ESPAÑOL FRANÇAIS DEUTSCH

ΕΛΛΗΝΙΚΆ

ČEŠTINA

NEDERLANDS

POLSKI

LIMBA ROMÂNĂ

TABLE OF CONTENTS

ENGLISH

4PREFACE

5IMPORTANT SAFETY INSTRUCTIONS

12 INSTALLATION PART

13 GENERAL INFORMATION

13 Model Information

14 Model name and related information

15 Parts and Dimensions

20 Control Parts

21 Control Panel

24 Typical Installation Example

29 Cycle Diagram

30 Water cycle

32 INSTALLATION OF OUTDOOR UNIT

32 Conditions where Outdoor Unit is Installed

32 Drill a Hole in the Wall

33 Installation at Seaside

33 Seasonal wind and cautions in winter

34 INSTALLATION OF INDOOR UNIT

34 Conditions where Indoor Unit is Installed

37 Electrical Wiring

40 PIPING AND WIRING FOR OUTDOOR UNIT

40 Refrigerant Piping

41 Preparation for Piping

42 Connecting Pipe to Indoor Unit

42 Connecting Pipe to Outdoor Unit

45 Finalizing

46 Leakage test and Evacuation

48 Electrical Wiring

51 PIPING AND WIRING FOR INDOOR UNIT

51 Water Piping and Water Circuit Connection

54 Water pump Capacity

54 Pressure Drop

55 Performance curve

56 Water Quality

56 Frost protection

57 Water Volume and Expansion Vessel Pressure

58 ACCESSORIES INSTALLATION

60 Before Installation

60 Thermostat

65 Central Controller

66 DHW Tank and DHW Tank Kit/Solar Thermal Kit

73 Dry Contact

74 2Way Valve

75 3Way Valve

76 Air-Vent

77 Final check

78 CONFIGURATION

78 DIP Switch Setting

83 SERVICE SETTING

TABLE OF CONTENTS

ENGLISH

83 How to enter service setting

83 Service setting

84 Service contact

85 Model information

86 RMC version lnformation

87 Open source license

88 INSTALLER SETTING

88 How to enter installer setting

89 Installer setting

91 3 Minutes Delay

92 Select Temperature Sensor

93 Dry Contact Mode

94 Central Control Address

95 Pump test run

96 Air cooling set temp.

97 Water cooling set temp

98 Air heating set temp.

99 Water heating set temp

100 DHW set temp

101 Screed drying

103 Heater on temperature

105 Water supply off temp. during cooling

107 Tank disinfection setting 1, 2

108 Tank setting 1

109 Tank setting 2

111 Heater priority

112 DHW time setting

113 TH on/off Variable, heating air

114 TH on/off Variable, heating water

115 TH on/off Variable, cooling air

116 TH on/off Variable, cooling water

117 Pump setting in heating

118 Pump setting. in cooling

119 Forced operation

120 CN_CC

121 Pump frequency setting (RPM)

122 Smart Grid(SG)

123 Seasonal auto temp

125 Modbus Address

126 CN_EXT

127 Add Zone

128 Use External Pump

129 3rd Party Boiler

130 Meter Interface

131 Data logging

132 Password initialization

133 Password Initialization

134 Power Supply Blockage (SG Ready)

135 Overview settings

137 COMMISSIONING

137 Check List before Starting Operation

138 Starting Operation

139 Starting Operation ﬂow chart

139 Airborne Noise Emission

139 Limiting concentration

140 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 nine 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 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 causeproduct damage

• Do not touch leaked refrigerant directly.

- There is risk of frostbite.

• 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.

IMPORTANT SAFETY INSTRUCTIONS

ENGLISH

• 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.

• Pipe-work shall be protected from physical damage and shall

not be installed in an unventilated space, if that space is

smaller than

1) The minimum floor area : 49.4 m2

2) The maximum refrigerant charge amount : 2.4 kg

• Do not use means to accelerate the defrosting process or to

clean, other than those recommended by the manufacturer.

• Do not pierce or burn.

• Be aware that refrigerants may not contain an odour.

• Dismantling the unit, treatment of the refrigerant oil and

eventual parts should be done in accordance with local and

national standards.

• Ducts connected to an appliance shall not contain an ignition

source.

• Copper in contact with refrigerants shall be oxygen-free or

deoxidized, for example Cu-DHP as specified in EN 12735-1

and EN 12735-2.

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 plug or unplug the power supply plug during operation.

- There is risk of fire or electric shock.

IMPORTANT SAFETY INSTRUCTIONS

ENGLISH

• 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.

• 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.

IMPORTANT SAFETY INSTRUCTIONS

ENGLISH

• Turn the main power on 6 hours ago before the product

starting operation.

- Otherwise, it may cause compressor damage.

• Do not touch electric parts for 10 minutes after main power

off.

- There is risk of physical injury, electric shock.

• The inside heater of product may operate during stop mode. It

is intended to protect the product.

• Be careful that some part of the control box are hot.

- There is risk of physical injury or burns.

• When the unit is soaked (flooded or submerged), contact an

Authorized Service Center.

- There is risk of fire or electric shock.

• Be cautious that water could not be poured to the unit directly.

- There is risk of fire, electric shock, or unit damage.

• Ventilate the unit from time to time when operating it together

with a stove, etc.

- There is risk of fire or electric shock.

• Turn the main power off when cleaning or maintaining the unit.

- There is risk of electric shock.

• Take care to ensure that nobody could step on or fall onto the

unit.

- This could result in personal injury and unit damage.

• For installation, always contact the dealer or an Authorized

Service Center.

- There is risk of fire, electric shock, explosion, or injury.

• If the unit is not used for long time, we strongly recommend

not to switch off the power supply to the unit.

- There is risk of water freezing.

• The appliance shall be stored in a well-ventilated area where

the room size corresponds to the room area as specified for

operation.

• 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).

IMPORTANT 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.

• Be aware that refrigerants may not contain an odor.

• Periodic(more than once/year) cleaning of the dust or salt

particles stuck on the heat exchangers by using water.

• Keep any required ventilation openings clear of obstruction.

CAUTION

Installation

• Always check for gas (refrigerant) leakage after installation or

repair of unit.

- Low refrigerant levels may cause failure of unit.

• Keep level even when installing the unit.

- To avoid vibration or water leakage.

• Use two or more people to lift and transport the unit.

- Avoid personal injury.

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.

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