LG LZ-H015GBA2, LZ-H050GBA2, LZ-H080GBA2, LZ-H025GBA2, LZ-H035GBA2 Service Manual

Ventilation System Air Conditioner

SVC MANUAL(Exploded View)

MODEL : LZ-H015GBA2 LZ-H025GBA2 LZ-H035GBA2 LZ-H050GBA2

CAUTION

Before Servicing the unit, read the safety precautions in General SVC manual. Only for authorized service personnel.

Internal Use Only

http://biz.lgservice.com

LZ-H080GBA2 LZ-H100GBA2 LZ-H150GBA2 LZ-H200GBA2

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LGE Internal Use Only

Ventilation System Service Manual

TABLE OF CONTENTS

Safety Precautions..................................................................................................3

Standards for Model ..............................................................................................6

Product Standards .................................................................................................7

Descriptions for operation and functions ..........................................................11

How to disassemble ............................................................................................14

Disassembly Diagram (Deal Drawing) ................................................................18

Wiring Diagram ....................................................................................................23

Control Part Detailed Drawing ............................................................................27

Descriptions for Control Circuit .........................................................................29

Troubleshooting ...................................................................................................31

Feature Dimensions Diagram ..............................................................................38

Accessaries / Option ...........................................................................................43

Safety Precautions

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LGE Internal Use Only

Safety Precautions

To prevent injury to the user or other people and property damage, the following instructions must be followed.

■ Incorrect operation due to ignoring instruction will cause harm or damage. The seriousness is classified by the following indications.

■ Meanings of symbols used in this manual are as shown below.

This symbol indicates the possibility of death or serious injury.

This symbol indicates the possibility of injury or damage.

■ For Installation

Be sure not to do.

Be sure to follow the instruction.

For electric working(wiring work), contact Service Center or agency you purchased the product.

• If you disassemble of repair arbitrarily, it may cause fire or electric shock.

Install in a place capable of the product's weight.

• If the product is installed in a place incapable of its weight, it may cause an accident by its dropping.

Do not arbitrarily disassemble, repair, or modify the product.

• It may cause fire or electric shock.

Be sure to undertake grounding work.

• If you do not undertake grounding work, it may cause electric shock.

Use an netted inlet for external air to prevent birds from entering.

• Remove any clogs such as bird nest. It may cause an oxygen deficiency in a room.

Install the air intake where polluted air can not be directly sucked in.

• It may cause various accidents, including suffocation, due to the suction of harmful gasses(CO, etc.)

service center

solid surface

More than

1m apart

Safety Precautions

- 4 -

LGE Internal Use Only

Wire with prescribed wire and fix firmly to prevent it from being pulled out by external impact.

• Improper wiring and fixing may cause fire.

Install in accordance with installation manual.

• Improper installation may cause fire and electric shock.

Electric works should be undertook by an expert in accordance with installation manual and the indicated circuit diagram.

• Improper use of wires and electric may cause fire and electric shock.

Be sure to install covers for inspection and control box.

• If not, water and dust infiltrating into the product may cause fire and electric shock.

Be sure to install electric leakage circuit breakers(ELB) and exclusive switch(switch for electrics).

• If not, it may cause fire and electric shock.

Do not keep flammable materials or volatile gas near the product.

• It may cause fire and breakdown.

Be sure to keep the product out of water.

• It may cause electric shock and breakdown.

Use a fuse in standardized capacity.(Use a standardized capacity fuse)

• It may cause fire and electric shock.

When unpacking, keep the product from scratches and sharp materials(object).

• If not, it may cause physical damage.

Keep out of inflammable.

• It may cause fire.

For the flooded product, contact Service Center.

Do not use damaged electric leakage circuit breaker or switch.

• It may cause fire and electric shock.

■ For use

cord clamp

Technical standards

for electric work

Maintenance Cover

Control Box Cover

service center

Safety Precautions

- 5 -

LGE Internal Use Only

Do not touch electric leakage circuit breaker or switch with wet hands.

• It may cause electric shock.

Install the product in an insulated space.

•

If the product is installed outside of insulating layer(surface), it may cause a dew formation inside main body, electric shock, and dropping of condensed water.

Do not install in oily place such as kitchen and factory.

• It may cause breakdown due to oils stained to filter or electric heat exchanger.

Do not install in humid place such as bathroom.

• It may cause electric shock and breakdown.

Switch the power off during cleaning.

• It may cause fire and electric shock.

Do not connect grounding line to window frame (chassis) and tap.

• It has a danger of electric shock.

Do not carry the product alone.

• Otherwise, it may cause physical damage.

Do not use for special purposes and places including animals and plants, sensitive equipment, and art pieces.

• Otherwise, it may cause physical damage.

Do not use strong detergent such as wax or thinner in case of cleaning, instead use soft cloth.

• It ruins external appearance due to discoloration or scratches on the product.

Clean filter and heat exchanger regularly with your gloves on.

• With a large quantity of dust in the product, the effect of ventilation may be reduced. (it may not well ventilated)

In case of gas leakage, open the window to change air(ventilate) before using remote controller.

• It may cause explosion and fire.

■ For Installation

■ For use

solid surface

grounding line

Standards for Model

- 6 -

LGE Internal Use Only

Standards for Model

Product Type

B: duct type hidden in ceiling T: cassette type for ceiling W: for window

Electrical Rating

G: 220-240 V, 50Hz, 1Ø / 220 V 60 HZ, 1Ø

Function

A : Basic L : Nano Plasma + Clean(Wall mounted) C : Plasma(Ceiling Cassette) G : Low Static Moter

Serial No.

Marking in a developed order.

Ventilation Capacity(Ventilating Ability)

Excluding the first digit of ventilating capacity per hour 50:500CMH

Heat Exchange Mode

H: Total heat(including humidity) T: Sensible heat(temperature only)

Product classification

LZ : ventilation

LZ-H050GBA2

Product Standards

- 7 -

LGE Internal Use Only

Product Standards

Item(format) Unit LZ-H015GBA2

Power Ø,V,Hz

Ventilation Mode -

Wind velocity -

Electric current A

Electricity consumption W

Airflow m3/h

External static press Pa

Temperature efficiency %

Enthalpy efficiency

Heating %

Cooling %

Noise dB(A)

Air Filter -

Weight kg

Dimensions mm

1, 220 - 240, 50 - 60

Total heat ventilation

Super High High Low

0.84 0.76 0.45

100 90 55

150 150 100

130 100 50

75 75 79

62 62 69

55 55 59

32 31 22

Non-woven fabric filter

22

605(W) X 570(D) X 185(H)

Item(format) Unit LZ-H025GBA2

Power Ø,V,Hz

Ventilation Mode -

Wind velocity -

Electric current A

Electricity consumption W

Airflow m3/h

External static press Pa

Temperature efficiency %

Enthalpy efficiency

Heating %

Cooling %

Noise dB(A)

Air Filter -

Weight kg

Dimensions mm

1, 220 - 240, 50 - 60

Total heat ventilation

Super High High Low

1.04 0.97 0.70

110 105 75

250 250 150

150 130 110

80 80 85

70 70 78

64 64 68

32 28 21

Non-woven fabric filter

32

750(W) X 680(D) X 250(H)

Product Standards

- 8 -

LGE Internal Use Only

Item(format) Unit LZ-H035GBA2

Power Ø,V,Hz

Ventilation Mode -

Wind velocity -

Electric current A

Electricity consumption W

Airflow m3/h

External static press Pa

Temperature efficiency %

Enthalpy efficiency

Heating %

Cooling %

Noise dB(A)

Air Filter -

Weight kg

Dimensions mm

1, 220 - 240, 50 - 60

Total heat ventilation

Super High High Low

1.73 1.58 0.77

200 180 80

350 350 210

170 150 100

83 83 87

80 80 85

78 78 83

33 28 23

Non-woven fabric filter

32

750(W) X 680(D) X 250(H)

Item(format) Unit LZ-H050GBA2

Power Ø,V,Hz

Ventilation Mode -

Wind velocity -

Electric current A

Electricity consumption W

Airflow m3/h

External static press Pa

Temperature efficiency %

Enthalpy efficiency

Heating %

Cooling %

Noise dB(A)

Air Filter -

Weight kg

Dimensions mm

1, 220 - 240, 50 - 60

Total heat ventilation

Super High High Low

1.92 1.58 0.79

230 220 85

500 500 320

150 100 50

75 75 79

72 72 77

70 70 75

34 32 25

Non-woven fabric filter

44

988(W) X 1014(D) X 273(H)

Product Standards

- 9 -

LGE Internal Use Only

Item(format) Unit LZ-H080GBA2

Power Ø,V,Hz

Ventilation Mode -

Wind velocity -

Electric current A

Electricity consumption W

Airflow m3/h

External static press Pa

Temperature efficiency %

Enthalpy efficiency

Heating %

Cooling %

Noise dB(A)

Air Filter -

Weight kg

Dimensions mm

1, 220 - 240, 50 - 60

Total heat ventilation

Super High High Low

2.77 2.16 1.44

360 270 165

800 800 660

200 110 60

79 79 82

70 70 75

65 65 70

36 34 30

Non-woven fabric filter

60

1062(W) X 1140(D) X 365(H)

Item(format) Unit LZ-H100GBA2

Power Ø,V,Hz

Ventilation Mode -

Wind velocity -

Electric current A

Electricity consumption W

Airflow m3/h

External static press Pa

Temperature efficiency %

Enthalpy efficiency

Heating %

Cooling %

Noise dB(A)

Air Filter -

Weight kg

Dimensions mm

1, 220 - 240, 50 - 60

Total heat ventilation

Super High High Low

3.41 2.91 1.76

470 385 210

1000 1000 800

160 90 50

75 75 78

66 66 71

61 61 66

37 35 31

Non-woven fabric filter

60

1062(W) X 1140(D) X 365(H)

Item(format) Unit LZ-H150GBA2

Power Ø,V,Hz

Ventilation Mode -

Wind velocity -

Electric current A

Electricity consumption W

Airflow m3/h

External static press Pa

Temperature efficiency %

Enthalpy efficiency

Heating %

Cooling %

Noise dB(A)

Air Filter -

Weight kg

Dimensions mm

1, 220 - 240, 50 - 60

Total heat ventilation

Super High High Low

5.60 5.40 2.90

720 540 340

1500 1500 1200

200 110 60

79 79 82

70 70 75

65 65 70

39 37 33

Non-woven fabric filter

140

1313(W) X 1140(D) X 738(H)

Item(format) Unit LZ-H200GBA2

Power Ø,V,Hz

Ventilation Mode -

Wind velocity -

Electric current A

Electricity consumption W

Airflow m3/h

External static press Pa

Temperature efficiency %

Enthalpy efficiency

Heating %

Cooling %

Noise dB(A)

Air Filter -

Weight kg

Dimensions mm

1, 220 - 240, 50 - 60

Total heat ventilation

Super High High Low

6.80 5.90 3.60

930 770 420

2000 2000 1600

160 90 50

75 75 78

66 66 71

61 61 66

39 37 33

Non-woven fabric filter

140

1313(W) X 1140(D) X 738(H)

LGE Internal Use Only

- 10 -

Product Standards

Descriptions for operation and functions

- 11 -

LGE Internal Use Only

Descriptions for operation and functions

Main Body

1

2

5 6

4

3

Models: LZ-H015GBA2

1. Blower for Air Supply

A blower for sucking outside air.

2. Control Box

3. Blower for Exhausting

A blower for draining polluted air outside.

4. Maintenance cover

5. Total Heat Exchanger

Exchanges temperature and moisture between air supply air and exhaust air.

6. Air Filter

Prevents clogging of the Total heat exchanger due to dust.

❈ The figure of Total heat Exchanger can be different by the Product Model.

Descriptions for operation and functions

- 12 -

LGE Internal Use Only

1

2

5 6

3

4

Models: LZ-H025GBA2 / LZ-H035GBA2

1. Blower for Air Supply

A blower for sucking outside air.

2. Control Box

3. Blower for Exhausting

A blower for draining polluted air outside.

4. Maintenance cover

5. Total Heat Exchanger

Exchanges temperature and moisture between air supply air and exhaust air.

6. Air Filter

Prevents clogging of the Total heat exchanger due to dust.

❈ The figure of Total heat Exchanger can be different by the Product Model.

1

5

6

7

8

2

3

4

1. Maintenance Cover

2. Air Filter

It prevents dust from clogging in Total Heat Exchanger.

3. Total Heat Exchanger

It changes temperature and humidity between Supplying Air and exhausted air.

4. Blower for Exhausting Air

It is a fan for discharging the contaminated air to outdoor.

5. Control box

6. Blower for Exhausting Air

It is a fan for inhaling exterior air into an indoor space.

7. Damper plate(board)

It converts exchanging mode between total heat ventilation and general ventilation.

8. Total Heat Exchanger holder

It is used in guiding for the installation of Total Heat Exchanger.

Models: LZ-H050GBA2

❈ The figure of Total heat Exchanger can be different by the Product Model.

Descriptions for operation and functions

- 13 -

LGE Internal Use Only

1

5

6

7

8

2

3

4

Models: LZ-H080GBA2 / LZ-H100GBA2

1. Maintenance Cover

2. Air Filter

It prevents dust from clogging in Total Heat Exchanger.

3. Total Heat Exchanger

It changes temperature and humidity between Supplying Air and exhausted air.

4. Blower for Exhausting Air

It is a fan for discharging the contaminated air to outdoor.

5. Control box

6. Blower for Exhausting Air

It is a fan for inhaling exterior air into an indoor space.

7. Damper plate(board)

It converts exchanging mode between total heat ventilation and general ventilation.

8. Total Heat Exchanger holder

It is used in guiding for the installation of Total Heat Exchanger.

❈ The form of Total Heat Exchanger varies according to models.

1

2

3

4

5

6

7

8

Models: LZ-H150GBA2 / LZ-H200GBA2

1. Maintenance Cover

2. Air Filter

It prevents dust from clogging in Total Heat Exchanger.

3. Total Heat Exchanger

It changes temperature and humidity between Supplying Air and exhausted air.

4. Blower for Exhausting Air

It is a fan for discharging the contaminated air to outdoor.

5. Control box

6. Blower for Supplying Air

It is a fan for inhaling exterior air into an indoor space.

7. Damper plate(board)

It converts exchanging mode between total heat ventilation and general ventilation.

8. Total Heat Exchanger holder

It is used in guiding for the installation of Total Heat Exchanger.

- 14 -

LGE Internal Use Only

How to disassemble

Models: LZ-H015GBA2 / LZ-H025GBA2 / LZ-H035GBA2

How to disassemble

In case of service, operate through inspecting tool(hole) installed on the surface of ceiling. For main part disassembly, follow the instructions below.

Control Box

• Unscrew the control box cover, and disassemble.

Total Heat Exchanger, Filter

• Take the Maintenance Cover off, and take them out. (in case that the Maintenance Cover is screwed up, unscrew it first.)

• Be careful of sharp area when taking the Air Filter out.

• Be careful not to drop the Total Heat Exchanger from the main body when detaching.

Fan

• Take the fan out after taking the Maintenance Cover off. (in case that the Maintenance Cover is screwed up, unscrew it first.)

• Be careful of sharp area when taking the fan out.

Control box cover

Maintenance cover

Total Heat Exchanger

SA Motor

EA Motor

LG LZ-H015GBA2, LZ-H050GBA2, LZ-H080GBA2, LZ-H025GBA2, LZ-H035GBA2 Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual