LG THERMA V HA031M E1 Manual de usuario

BACKUP HEATER

SERVICE MANUAL

(Exploded View)

AIR-TO-WATER HEAT PUMP

HA031M E1

HA061M E1

CAUTION

Before Servicing the unit, read the safety precautions in General SVC manual.

Only for authorized service personnel.

The appliance shall be disconnected from its power source during service and when

replacing parts.

CONFIDENTIAL

- 2 -

Model number nomenclature

1. Model Information

Model name and related information

Electric Heater 1 Series

Leaving Water Combination

None : Low Temperature Leaving Water

H : High Temperature Leaving Water

M : Middle Temperature Leaving Water

Electrical ratings

1 : 220-240 V~ 50 Hz

3 : 380-415 V 3~ 50 Hz

Nominal Heating Capacity Indication Conversion to kW

Ex) “03” : 03 kW

“06” : 06 kW

“12” : 12 kW

Accessory

H : Air to Water Heat Pump

H A 0 6 1 M E1

Capacity (kW) Power Source

6380-415 V 3~ 50 Hz

6220-240 V ~ 50 Hz

3220-240 V ~ 50 Hz

- 3 -

Note

1. The specification may be subject to change without prior notice for purpose of improvement.

2. Specification

Backup Heater Model

AHEH066A(HA061M E1) AHEH036A(HA031M E1) AHEH068A (HA063M E1)

Power Supply Ø / V / Hz 1 / 220-240 / 50 1 / 220-240 / 50 3 / 380-415 / 50

Capacity kW 6 3 6

operational current Max. A24 12 8.7

Dimensions Unit(W × H × D) mm 210 × 607 × 220 210 × 607 × 220 210 × 607 × 220

Packed Unit(W × H × D) mm 294 x 728 x 278 309 x 738 x 293 294 x 728 x 278

Weight Unit kg 13.8 13 14.1

Packed Unit kg 15.2 14.4 15.4

Safety Device Anti-overheating -Thermostat Thermostat Thermostat

Water Pipe Entering Side Diameter mm Ø28 Ø28 Ø28

Leaving Side Diameter mm Ø28 Ø28 Ø28

Wiring Cable

Power Supply Type

(H07RN-F) mm2×cores 4 x 3C 1.5 x 3C 2.5 x 4C

Communication Cable mm2×cores 0.75 x 4C 0.75 x 2C 0.75 x 2C

Sensor Cable 0.75 x 2C 0.75 x 2C 0.75 x 2C

Temperature

Sensor Thermistor Assembly,NTC 5 kΩ ± 5 % 5 kΩ ± 5 % 5 kΩ ± 5 %

Circuit breaker A40 20 20

- 4 -

3. External Apprearance

Backup Heater Box

Item Item Quantity

Backup Heater 1

Installation

Manual 1

Installation

Sheet 1

Terminal Block KIT 1

Screw 1

- 5 -

4. Wiring Diagrams

1Ø 3 kW

1Ø 6 kW

- 6 -

3Ø 6 kW

- 7 -

5. Typical Installation Example

nTypical Installation Example

Floor + Backup heater (Only Heating)

Floor+Convector+Backup heater (Heating + Cooling)

Buffer

Tank

Filter

Collector

[Outdoor] [Room]

Remote

Control

2 Way V/V

(Manual)

Air vent

Floor Heating

Radiator

Convector

Thermostatic V/V

s2 Way V/V

(Signal)

Safety V/V

Backup

heater

Unit

Buffer

Tank

Filter

Collector

[Outdoor] [Room]

Cooling: Close

Heating: Open

Remote

Control

2Way V/V

(Manual)

Air vent

Floor Heating

Radiator

Convector

Thermostatic V/V

s2 Way V/V

(Signal)

[Outdoor] Backup

heater

(A) Cooling

3 Way V/V

direction

3 way valve

(Signal)

Heating

▲

(B)

Unit

3 Way V/V direction

Flow A (Bypass) : Cooling

Flow B (Heater) : Heating

1. When the backup heater is installed in a reversible

system, condensation may occur inside the backup

heater.

2. To provide a bypass for the condensate, install 3way

valve.

NOTICE

- 8 -

nHow to Wire 3Way Valve For Bypass

18 19 20

L1 L2 N

2WAY VALVE

(A)

3way valve

(NO) (NC) (N)

3WAY VALVE (For Backup heater Bypass)

Follow below procedures Step 1 ~ Step 2.

Step 1. Uncover front cover of the unit.

Step 2. Find terminal block and connect wire as below. (in the unit)

(1) : Flow A means ‘water flow from the unit to Buffer tank . (Cooling)’

(2) : Flow B means ‘water flow from the unit to Backup heater. (Heating)’

Final check

• Flow direction

- Water should not flow into Heater loop (B) in cooling mode.

- If correctly wired, this temperatures should not be approached to 6°C in cooling mode.

• Noise or water pipe vibration while 3way valve operation

- Due to surging effect or cavitation effect, noise or water pipe vibration can be occurred while 3way valve is

operating.

- In that case, check followings :

Is water circuit (both under floor water loop and sanitary water tank loop) fully charged? If not, additional water

charging is required.

Fast valve operation yields noise and vibration. Appropriated valve operating time is 60~90 seconds.

• 3Way valve should be connected together with 2Way valve in terminal block.

• Keep the distance between 3Way valve and backup heater more than 0.5m.

• To prevent reverse flow, It is important to use one way valve(check valve) to Backup heater water outlet.

CAUTION

• When type of 2way valve is NO type, 3way valve should select Flow A (bypass) when electric power is sup-

plied to wire (NO) and wire (N).

• When type of 2way valve is NC type, 3way valve should select Flow A (bypass) when electric power is sup-

plied to wire (NC) and wire (N).

WARNING

237202

237203

237204B

237204A

W4810B

148391

237201

566001

249950

266007

W4810A

W6640B

W6640A

269300

135510

263230

237202

237203

237204B

237204A

W4810B

148391

237201

566001

249950

266007

W4810A

W6640B

W6640A

135510

263230

269300

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