46
10-4. TROUBLE CRITERION OF MAIN PARTS
MUZ-A09NA MUZ-A12NA MUZ-A15NA MUZ-A17NA MUZ-A24NA
MUY-A15NA MUY-A17NA MUY-A24NA MUZ-GA24NA MUY-GA24NA
Part name
Check method and criterion
Figure
Defrost thermistor (RT61)
(MUZ)
Fin temperature thermistor
(RT64)
Ambient temperature ther-
mistor (RT65)
Outdoor heat exchanger
temperature thermistor
(RT68)
Measure the resistance with a tester.
Refer to 10-6. "Test point diagram and voltage", 1. "Inverter P.C. board" and 3.
"Outdoor electronic control P.C. board”, for the chart of thermistor.
Discharge temperature
thermistor (RT62)
Measure the resistance with a tester.
Before measurement, hold the thermistor with your hands to warm it up.
Refer to 10-6. "Test point diagram and voltage", 1. "Inverter P.C. board" and 3.
"Outdoor electronic control P.C. board", for the chart of thermistor.
Compressor (MC)
Measure the resistance between the terminals with a tester.
(Temperature 14 - 104°F)
Normal
A09/12
A15/17/24
GA24
U-V
U-W
V-W
0.43 - 0.53
Ω
0.39 - 0.49
Ω
0.86 - 1.06
Ω
Outdoor fan motor (MF)
Measure the resistance between the terminals with a tester.
(Temperature 14 - 104°F)
Color of lead wire
Normal
A09/12/15/17
A24 GA24
WHT – BLK
BLK – RED
RED – WHT
31 - 41
Ω
13 - 16
Ω
R. V. coil (21S4)
(MUZ)
Measure the resistance between the terminals with a tester.
(Temperature 14 - 104°F)
Normal
1.20 - 1.55 k
Ω
Expansion valve coil (LEV)
Measure the resistance with a tester.
(Temperature: 14 - 104°F)
Color of lead wire
Normal
WHT – RED
38 - 50
Ω
RED – ORN
YLW – BRN
BRN – BLU
W
U
V
WHT
RED BLK
W
U
V
WHT
RED BLK
LEV
WHT
RED
ORN
YL
W
BRN
BLU
Содержание Mr.Slim MUZ-A17NA
Страница 12: ...12 MUZ A09NA MUZ A12NA MUZ A15NA MUZ A17NA 5 WIRING DIAGRAM ...
Страница 13: ...13 MUY A15NA MUY A17NA ...
Страница 14: ...14 MUZ A24NA MUZ A24NA U1 ...
Страница 15: ...15 MUZ A24NA 1 MUZ A24NA U2 ...
Страница 16: ...16 MUY A24NA ...
Страница 17: ...17 MUY A24NA 1 ...
Страница 18: ...18 MUZ GA24NA ...
Страница 19: ...19 MUY GA24NA ...
Страница 74: ...74 8 1 4 MUZ A09NA MUZ A12NA MUZ A15NA MUZ A17NA MUY A15NA MUY A17NA 2 OUTDOOR UNIT ELECTRICAL PARTS 2 3 5 6 7 ...
Страница 80: ...80 8 1 4 MUZ A09NA MUZ A12NA MUZ A15NA MUZ A17NA MUY A15NA MUY A17NA 2 OUTDOOR UNIT ELECTRICAL PARTS 2 3 5 6 7 ...