LG Therma V HM091MRS Bedienungsanleitung

INSTALLATION MANUAL

AIR-TO-WATER

HEAT PUMP

www.lg.com

MFL68026607

Rev.08_042221

Please read this installation manual completely before installing the product.

Installation work must be performed in accordance with the national

wiring standards by authorized personnel only. Please retain this

installation manual for future reference after reading it thoroughly.

Original instruction

[EU Representative]

LG Electronics Inc. EU Representative : LG Electronics European Shared Service Center B.V.

Krijgsman 1, 1186 DM Amstelveen, The Netherlands

[

Manufacturer

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

PORTUGUÊS

MAGYAR

БЪЛГАРСКИ

SRPSKI

HRVATSKI

SLOVENŠČINA

DANSK

ENGLISH ITALIANO ESPAÑOL

FRANÇAIS

DEUTSCH

ΕΛΛΗΝΙΚΆ

ČEŠTINA

NEDERLANDS

POLSKI

LIMBA ROMÂNĂ

TABLE OF CONTENTS

ENGLISH

4PREFACE

5SAFETY INSTRUCTIONS

12 INSTALLATION PART

13 GENERAL INFORMATION

13 Model Information

14 Model name and related information

15 Parts and Dimensions

18 Control Parts

20 Remote Controller

21 Typical Installation Example

27 Cycle Diagram

29 Water cycle

31 INSTALLATION

31 Transporting the Unit

32 Installation places

33 Seasonal Wind and Cautions in Winter

34 Foundation for Installation

35 Electrical Wiring

43 Wiring of main power supply and equipment capacity

44 Water Piping and Water Circuit Connection

46 Water Charging

46 Pipe Insulation

47 Water pump Capacity

47 Pressure Drop

48 Performance curve

49 Water Quality

49 Frost protection

50 Water Volume and Expansion Vessel Pressure

51 ACCESSORIES INSTALLATION

51 Accessories supported by LG Electronics

52 Accessories supported by 3rd party Companies

53 Before Installation

53 Thermostat

56 2nd Circuit

59 3rd Party Boiler

60 3rd Party Controller

61 Meter Interface

62 Central Controller

63 Remote Controller

66 DHW Tank

69 DHW Tank Kit

70 Solar Thermal Kit

71 Dry Contact

73 External Controller - Setting up programmable digital input operation

74 Remote Temperature Sensor

76 Solar pump

77 External pump

78 Wi-ﬁ Modem

79 Energy State

80 Digital Input for energy saving (ESS, Smart Grid)

81 2Way Valve

82 3Way Valve(A)

83 3Way Valve(B)

84 Electric Heater

88 Final check

89 CONFIGURATION

89 DIP Switch Setting

TABLE OF CONTENTS

ENGLISH

95 SERVICE SETTING

95 How to enter service setting

95 Service setting

96 Service Contact

97 Model Information

98 RMC Version lnformation

99 Open Source License

100 INSTALLER SETTING

100 How to enter installer setting

101 Installer setting

103 3 Minutes Delay

104 Select Temperature Sensor

105 Dry Contact Mode

106 Central Control Address

107 Pump test run

108 Air cooling set temp

109 Water cooling set temp

110 Air heating set temp

111 Water heating set temp

112 DHW set temp

113 Screed drying

115 Heater on temperature

117 Water supply off temp. during cooling

119 Tank disinfection setting 1, 2

120 Tank setting 1

121 Tank setting 2

123 Heater priority

124 DHW time setting

125 TH on/off Variable, heating air

126 TH on/off Variable, heating water

127 TH on/off Variable, cooling air

128 TH on/off Variable, cooling water

129 Heating temp. setting

130 Cooling temp. setting

131 Pump setting in heating

132 Pump setting. in cooling

133 Forced operation

134 CN_CC

135 Pump Capacity

136 Seasonal auto temp

138 Modbus Address

139 CN_EXT

140 Anti-freezing Temperature

141 Add Zone

142 Use External Pump

143 3rd Party Boiler

144 Meter Interface

145 Pump Prerun/Overrun

146 Solar Thermal System

148 Energy state

149 Data logging

150 Password Initialization

151 Overview settings

153 COMMISSIONING

153 Check List before Starting Operation

154 Starting Operation

155 Starting Operation ﬂow chart

155 Airborne Noise Emission

156 Vacuum & Charge of Refrigerant

158 How to drain remaining water in the product

159 Troubleshooting

PREFACE

ENGLISH

PREFACE

This installation manual is to present information and guide about understanding, installing,

and checking .

Your careful reading before installation is highly appreciated to make no mistake and to prevent

potential risks. The manual is divided into nine chapters. These chapters are classified according

to installation procedure. See the table below to get summarized information.

Chapters Contents

Chapter 1

• Warning and Caution concerned with safety.

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

this chapter carefully.

Chapter 2

• 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 unit.

• Installation location, constraints on installation site, etc

• Electrical wiring at the unit.

• System set-up and configuration.

• Information about water pump

Chapter 5

• Information about supported accessories

• Specification, Constraints, and wiring are described.

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

one.

Chapter 6

• Information about DIP switch setting

Chapter 7

• check and input service contact

• information about model and open source license

Chapter 8

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

remote control

• Incorrectly setting the installer setup mode may result in product failure, personal

injury, or property loss, so this chapter requires a deeper understanding

Chapter 9

• Check points before starting operation are explained.

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

problems

SAFETY INSTRUCTIONS

ENGLISH

SAFETY INSTRUCTIONS

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 (for 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.

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

• Compliance with national gas regulations shall be observed.

• Refrigerant tubing shall be protected or enclosed to avoid

damage.

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

• A brazed, welded, or mechanical connection shall be made

before opening the valves to permit refrigerant to flow

between the refrigerating system parts. A vacuum valve shall

be provided to evacuate the interconnecting pipe and/or any

uncharged refrigerating system part.

• Any person who is involved with working on or breaking into a

refrigerant circuit should hold a current valid certificate from an

industry-accredited assessment authority, which authorizes

their competence to handle refrigerants safely in accordance

with an industry recognized assessment specification.

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

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

smaller than

1) The minimum floor area : 49.4 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.

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.

• 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.

SAFETY INSTRUCTIONS

ENGLISH

•

The appliance shall be stored in a room without continuously

operating open flames (for example an operating gas appliance)

and ignition sources (for example an operating electric heater).

• The appliance shall be stored so as to prevent mechanical

damage from occurring.

•

Servicing shall only be performed as recommended by the equipment

manufacturer. Maintenance and repair requiring the assistance of

other skilled personnel shall be carried out under the supervision of

the person competent in the use of flammable refrigerants.

• When mechanical connectors are reused indoors, sealing parts

shall be renewed. When flared joints are reused indoors, the

flare part shall be re-fabricated.

• Be aware that refrigerants may not contain an odor.

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

particles stuck on the heat exchangers by using water.

• Keep any required ventilation openings clear of obstruction.

CAUTION

Installation

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

repair of unit.

- Low refrigerant levels may cause failure of unit.

• Keep level even when installing the unit.

- To avoid vibration or water leakage.

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

- Avoid personal injury.

• Do not install the unit in potentially explosive atmospheres.

• Connect the water for filling or refilling the heating system as

specified by EN 1717/EN 61770 to avoid contamination of

drinking water by return flow.

Operation

• Do not use the unit for special purposes, such as preserving

foods, works of art, etc.

- There is risk of damage or loss of property.

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