AirStage AO54FJ, Service Manual

Page: 118 / 169

SERVICE SERVICE PARTS PARTS INFORMATION 6 INFORMATION 6
Compressor ASSY
Check Point 3: Check Winding resistance Check Point 3: Check Winding resistance
Check between each terminal of resistance value.
Resistance Resistance
Value Value
0.187 0.187
U U
V V
W W
U U
(RED) (RED)
V V
(WHITE) (WHITE)
W W
(BLACK) (BLACK)
P
U
V
W
N
Check Point 1: Check Circuit connection Check Point 1: Check Circuit connection
Check the connection to each terminal.
If the resistance value is either 0 or , replace Compressor
TR PWB ASSY Terminal cover opened Terminal cover opened
P/No.
9372716014 (Compressor ASSY)
Check Point 4: Check condition of cooling Test Operation Check Point 4: Check condition of cooling Test Operation
30rps.
50rps.
30sec. 180sec.
Check Compressor speed at Test Operation
P
U
V
W
N
TR PWB ASSY
Permanent Magnet is 6 polar Permanent Magnet is 6 polar
1cycle is 3 Hz. 1cycle is 3 Hz.
Check Point 2: Check Operation Check Point 2: Check Operation
Check Pressure when compressor operate.
1) Pressure decreases when the refrigerant is less. 2) Pressure decrease when the Piping is blocked.
Check discharge temperature when compressor operate.
1) Temperature rises when the refrigerant is less.
Check operating current when compressor operate.
1) Operating current rises when the refrigerant is less. 2) Operating current rises when the compressor is rock.
06-48