Mitsubishi Electric MSH09TW Service Manual page 82

MXZ30TN MXZ30TN2
Part name
Defrost
Measure the resistance using a tester.
thermistor
(Part temperature 14°F ~ 104°F)
Evaporation/ Gas
pipe temperature
thermistor
Measure the resistance using a tester, after warming up the thermistor by holding by
hand.
Discharge
(Part temperature : 68°F ~ 104°F)
temperature
thermistor
Measure the resistance between terminals using a tester.
(Winding temperature : 14°F ~ 104°F)
Compressor
Outdoor fan
Measure the resistance between lead wires using a tester.
motor
(Part temperature : 14°F ~ 104°F)
OPEN
275°F i 9°F
WHT - BLK
CLOSE
187°F i 27°F
BLK - YLW
YLW - BLU
RED - BLK
Measure the resistance using a tester. (Part temperature 14°F ~ 104°F)
R. V. coil
Measure the resistance using a tester.(Part temperature 14°F ~ 104°F)
Lead wire color
WHT - RED
Linear expansion
RED - ORN
valve
YLW - BRN
BRN - BLU
Measure the resistance using a tester.
(Part temperature 14°F ~ 104°F)
High pressure
switch (HPS)
HPS1
HPS2
HPS1
HPS2
Check method and criterion
Normal
5kΩ ~ 55kΩ
Normal
100kΩ ~ 250kΩ
Normal
1Each phase 0.53Ω ~ 0.66Ω
Normal
69.0Ω ~ 86.0Ω
23.0Ω ~ 30.0Ω
10.0Ω ~ 13.0Ω
73.0Ω ~ 91.0Ω
Normal
1640Ω ~ 2310Ω
Normal
37.4 ~ 53.9Ω
Pressure
Operation OFF
340.8 ± 21.8PSIG
369.8 ± 29 PSIG
398.8
497.5
abnormal
Open or short-circuit
abnormal
Open or short-circuit
abnormal
Open or short-circuit
abnormal
Open or short-circuit
Open or short-circuit
+
PSIG
7.3
-
14.5
+
0 PSIG
-
21.8
82
V
WHT
abnormal
Open or
short-circuit
(Not including
WHT - ORN)
Abnormal
WHT
RED
ORN
Normal abnormal
Other than
Short
those
listed at
left
Open
P Inner protector
Figure
W
RED
U
BLK
WHT
P
ORN
RED
BLU
YLW
BLK
LEV
YLW BRN BLU