Mitsubishi Electric PUHZ-SHW80VHA Service Manual page 56

1 0 - 6 . HO W T O C HE C K T HE P A R T S
P U HZ - S HW 8 0 V HA
P U HZ - S HW 8 0 V HA R 3.U K
P U HZ - S HW 1 1 2 V HA
P U HZ - S HW 1 1 2 V HA R 3.U K
P U HZ - S HW 1 1 2 Y HA
P U HZ - S HW 1 1 2 Y HA R 2 - B S .U K
P U HZ - S HW 1 4 0 Y HA
P U HZ - S HW 1 4 0 Y HA R 2 - B S .U K
Parts name
T hermistor (T H 3)
< Liq uid>
T hermistor (T H 4)
< Discharge>
T hermistor (T H 6)
< 2-phase pipe>
T hermistor (T H 7)
< Ambient>
T hermistor (T H 8)
< H eatsink>
(SH W 112/ 140Y only)
T hermistor (T H 32)
< Suction>
T hermistor (T H 33)
< R ef . check>
T hermistor (T H 34)
< Comp. surf ace>
Fan motor
(MF1, MF2)
Solenoid valve coil
< Four-way valve>
(21S4)
Motor f or compressor
(MC)
U
V
W
Linear ex p ansion valve
(LEV-A/ LEV-B / LEV-C)
G ray
M
1
Orange
2
R ed
3
Y ellow
4
B lack
5
Solenoid valve coil
< B ypass valve>
(SV)
OCH526C
P U HZ - S HW 8 0 V HA R 2 .U K
P U HZ - S HW 8 0 V HA R 3- B S .U K
P U HZ - S HW 1 1 2 V HA R 2 .U K
P U HZ - S HW 1 1 2 V HA R 3- B S .U K
P U HZ - S HW 1 1 2 Y HA R 1
P U HZ - S HW 1 1 2 Y HA R 3.U K
P U HZ - S HW 1 4 0 Y HA R 1
P U HZ - S HW 1 4 0 Y HA R 3.U K
Disconnect the connector then measure the resistance with a tester.
(At the ambient temperature 10 to 30 :)
Normal
T H 4
160 to 410 k"
T H 3
T H 6
T H 7
4. 3 to 9. 6 k"
T H 32
T H 33
T H 34
T H 8
39 to 105 k"
R ef er to the nex t page.
Measure the resistance between the terminals with a tester.
(At the ambient temperature 20 :)
Normal
1435 i 150 "
Measure the resistance between the terminals with a tester.
(W inding temperature 20 :)
80/ 112VH A 112/ 140Y H A(R 1)
0. 188 "
Disconnect the connector then measure the resistance with a tester.
(W inding temperature 20 :)
G ray - B lack G ray - R ed
Measure the resistance between the terminals with a tester.
(At the ambient temperature 20:)
Normal
1197 ± 10 "
Check points
Abnormal
Open or short
Abnormal
Open or short
Normal
112/ 140Y H AR 2(R 3)
0. 302 " 0. 305 "
Normal
G ray - Y ellow
46 ± 3"
Abnormal
Open or short
P U HZ - S HW 8 0 V HA R 2 - B S .U K
P U HZ - S HW 1 1 2 V HA R 2 - B S .U K
P U HZ - S HW 1 1 2 Y HA R 2 .U K
P U HZ - S HW 1 1 2 Y HA R 3- B S .U K
P U HZ - S HW 1 4 0 Y HA R 2 .U K
P U HZ - S HW 1 4 0 Y HA R 3- B S .U K
Abnormal
Open or short
Abnormal
G ray - Orange
Open or short