Argoclima AER522SCL3 Manuel de service Page 65

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61
10-2. Air conditioner does not operate.
10-2-1. Circuit breaker trips (or fuse blows).
A. When the circuit breaker is set to ON, it is tripped soon. (Resetting is not possible.)
There is a possibility of ground fault.
Check insulation resistance.
If resistance value is 2Mor less, insulation is defective (“NO”).
1
Indoor
unit
Ground
Outdoor
unit
21
2
4
2
4
11
N
L2
L1
L3
N
L2
L1
L3
Power
supply
Power
supply
wiring
Inter-unit
wiring
Circuit
breaker
Measure insulation
resistance of electrical
parts in outdoor unit.
NO
NO
Set circuit breaker to OFF.
*
Measure insulation
resistance of electrical
parts in indoor unit.
1
Remove both power supply wires
and inter-unit wires from terminal
plate in outdoor unit.
Measure insulation resistance
of outdoor unit.
2
Remove inter-unit wires from
terminal plate in indoor unit.
Measure insulation resistance
of indoor unit.
Insulation of
outdoor unit
is defective.
Insulation of
indoor unit
is defective.
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