LG AHBW Series, Руководство по установке

Страница: 41 / 81

Wiring and Water Piping for Unit
Installation Manual 41
ENGLISH
Circuit breaker specification
• Select a power source that is capable of supplying the current required by the unit.
• Use a recognized circuit breaker between the power source and the unit.
A disconnection device to adequately disconnect all supply lines must be fitted.
• Capacity of circuit breaker recommended.
• Separate main power supply and heater supply.
After checking and confirming following conditions, start wiring work.
1. Secure dedicated power source for the Air-to-Water heat pump. The wiring diagram (attached
inside the panel of the unit) is presenting related information.
2. Provide a circuit breaker switch between power source and the unit.
3. Although it is very rare case, sometimes the screws used to fasten internal wires can be loosen
due to the vibration while unit transportation. Check these screws and make it sure if they are all
fastened tightly. If not tightened, burn-out of the wire can be occurred.
4. Check the specification of power source such as phase, voltage, frequency, etc.
5. Confirm that electrical capacity is sufficient.
6. Be sure that the starting voltage is maintained at more than 90 percent of the rated voltage
marked on the name plate.
7. Confirm that the cable thickness is as specified in the power sources specification. (Particularly
note the relation between cable length and thickness.)
8. Provide an ELB(electric leakage breaker) when the installation place is wet or moist.
9. The following troubles would be caused by abnormal voltage supply such as sudden voltage
increasing or voltage drop-down.
• Chattering of a magnetic switch (frequent on and off operation)
• Physical damage of parts where magnetic switch is contacted
• Break of fuse
• Malfunction of overload protection parts or related control algorithms.
• Failure of compressor start up
Model
Power
Supply
Core Component Electrical Spec MOP & Circuit Breaker
Compressor Electric Heater Sanitary Tank Heater For Heat Pump
For Electric Heater
(Without S/Heater) For Electric Heater
(With S/Heater)
RLA
(A)
FLA
(A)
Capacity
(kW)
Power
Supply
RLA
(A)
Capacity
(kW)
Power
Supply
FLA
(A)
MOP
(A)
Circuit
Breaker (A)
MOP
(A)
Circuit
Breaker (A)
MOP
(A)
Circuit
Breaker (A)
AHBW036H0
1 Ø
220~240
V
50 Hz
9.7 15 - - -
3
1 Ø
230 V
12.5
23.9 20
- -
45 40
AHBW056A0 9.7 15 2+2
1 Ø
8.3 27 30 AHBW076A0 9.7 15 2+2
AHBW096A0 9.7 15 2+2
AHBW126A0 17 25 3+3
12.5 40.3 40 41 40 53 50 AHBW146A0 17 27 3+3
AHBW166A0 17 27 3+3
AHBW128A0
3 Ø
4
9.9
2+2+2
3 Ø 8.7
11.1 10
22 20 38 30 AHBW148A0 5 2+2+2 13.3
13
AHBW168A0 5.3 2+2+2 14
13
• S/Heater : Sanitary water tank heater
• FLA : Full load ampere
• MOP : Maximum rating of overcurrent protective device