Mitsubishi Electric PU-2NJA Technical & Service Manual page 15

7-2. HOW TO CHECK THE PARTS
PU-2NJA.TH
PU-2.5NJA.TH
PU-3NJA.TH
PU-4TJSA.TH
PU-5TJSA.TH PU-5XJSA.TH
PU-6TJSA.TH PU-6XJSA.TH
Parts name
FAN MOTOR
( MF3 , MF4 )
CRANK CASE
HEATER ( HC )
COMPRESSOR
( MC )
Measure the resistance between the terminals using a tester.
(Surrounding temperature 20: )
Motor lead wire
White-Blue
Blue-Red ( Brown )
Protector
OPEN:145I8:
CLOSE:90I15:
Measure the resistance between the terminals using a tester.
Normal
3N 4T
1274" 1274"
1Winding resistance ( " )
Measure the resistance between the terminals using a tester.
( Surrounding temperature20: )
Terminals
R-C ( U-V )
S-C ( V-W )
W-U
Terminals
T1-T2 0.628-0.722"
T2-T3 0.628-0.722"
T3-T1 0.628-0.722"
2 Internal thermostat motor protection (49C)
Internal
thermostat
motor protection
Opening temp.
Closing temp.
Check points
Normal
2 , 2.5 , 3N
4T
68.8" 74.6"
88.4" 122.0"
Abnormal
Open or short
Normal
2N 2.5N
0.92" 0.83"
1.933" 1.83"
— —
Normal
5T 5X
2.23"
2.23"
2.23"
PU-4T PU-5T
ZR-61KC- ZR-61KC-
NH56TKAT
TF5 TF7
125I5: 120I5:
90I7: 90I15:
15
Abnormal
5 , 6T,X
91.3"
Open or short
96.0"
Abnormal
3N 4T
0.55" 0.87"
Open or short
1.24" 0.87"
— 0.87"
Abnormal
6T 6X
0.517" 1.92"
Open or short
0.517" 1.92"
0.517" 1.92"
PU-5X PU-6T PU-6X
ZR-68KC- ZR-68KC-T
TF5 F7
120I5: 120I5: 120I5:
90I15: 90I15: 90I15: