Electric Characteristics - LG AMNH096VEA0 Service Manual

Installation

2. Electric characteristics

Model Type
A2UW146FA0
[FM14AH UE0]
A2UW146FA1
[FM15AH UE1]
A2UW146FA2
[FM15AH UL2]
A2UW166FA0
Inverter
[FM17AH UL0]
A2UW166FA1
[FM17AH UL1]
A2UW186FA0
[FM18AH UE0]
A3UW186FA0
[FM19AH UE0]
A3UW246FA0
[FM24AH UE0]
MPS
A4UW246FA0
[FM25AH UE0]
Inverter
A4UW306FA0
[FM30AH UE0]
A6UW406FA0
[FM40AH UH0]
A7UW486FA0
MPS
[FM48AH UY0]
inverter
A8UW566FA0
[FM56AH UY0]
Notes :
1. Voltage range
Voltage supplied to the unit terminals should be within the
minimum and maximum range
2. Maximum allowable voltage unbalance between phase is 2 %
3. MCA / MOP
MCA = (1.25 x Load1) + Load2 + Load3
MOP = (2.25 x Load1) + Load2 + Load3
- Load1 : Rated running current of largest motor
(compressor or other motor)
- Load2 : sum of current for all other motors
- Load3 : any other load rated 1.0A or more
4. Select wire spec. based on the MCA
5. Select proper circuit breaker as given below
MCA < Circuit breaker MOP
6. Recommended circuit breaker is ELCB (Earth Leakage circuit
breaker)
7. MSC & RLA are measured as the compressor only test
condition.
8. MSC values
23.1/14.0 : MSC of (inv. comp.) / (const. comp.)
72 Multi type Air Conditioner
Unit
Hz Voltage Voltage range
MIN.:198
220~240
50
MAX.:264
Power Compressor
MCA MOP MSC
7.25 13.05
8.00 14.40
9.75 17.55 14
9.75 17.55 14
13.50 24.30 23.1/14.0 6.1/7.0
13.50 24.30 23.1/14.0 6.1/7.0
15.25 27.45 26.0/14.0 8.1/7.0
22.6 39.5 14/63
29.3 50.8 14/35/35 7.0/8.0/8.0
32.7 56.9 14/35/63 7.0/8.0/14.0
9. RLA is measured during each individual compressor test
condition.
Ex) 6.1/7.0 : RLA of (inv. comp.) / (const. comp.)
10. OFM is measured as the outdoor unit test condition
(Example) Selection of proper circuit breaker
Model : A2UW146FA0 [FM14AH UE0]
1
- Rated running current : 5.8 A (refer to spec. sheet)
MCA = (1.25 x Load1) + Load2 + Load3
2
= (1.25 x 5.8) + 0 + 0 = 7.25 A
MOP = (2.25 x Load1) + Load2 + Load3
3
= (2.25 x 5.8) + 0 + 0 = 13.05 A
Finally select circuit breaker 15A
MCA : Minimum Circuit Amperes (A)
MOP : Maximum rating over current protective device
MSC : Maximum Starting Current
RLA : Rated Load Amperes (A)
OFM : Outdoor Fan Motor
kW : Fan Motor rated output (kW)
FLA : Full Load Amperes (A)
OFM
RLA KW
8 6 0.067
8 6 0.067
7 0.067
7 0.067
0.041
0.041
0.041*2
7.0/14.0 0.12x2
0.43
0.43
FLA
0.68
0.68
0.68
0.68
0.73
0.73
0.73*2
0.73x2
2.43
2.43