Mitsubishi SCM45ZS-S User Manual

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219
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'16 • SCM-T-199
(ii) Fan motor resistance check
Models SCM40, 45 Model SCM50
Models SCM40, 45 Model SCM50
Measuring point Resistance when normal
Measuring point Resistance when normal
DC15V
Notes(1) Remove the fan motor and measure it without power cnnected to it.
(2) If the measured value is below the value when the motor is normal, it means that the fan motor is fauly.
DC several (0-6V)
DC several V(0-6V)
DC280V⑥ - ④
③ - ④
② - ④
DC15V
Outdoor main PCB
GND
DC280V
⑥-④(Red - Black) 20 MΩ or higher
Measuring point Resistance when normal
⑥-④(Red - Blue) 20 MΩ or higher
③-④(White - Black) 20 kΩ or higher 20 kΩ or higher③-④(Brown - Blue)
CNFAN
Red
Black
White
Yellow
Blue
FM0
⑥ ④⑤ ③ ②
①
⑥ ④⑤ ③ ②
①
DC15V
DC several (0-6V)
Outdoor main PCB
GND
DC280V
CNFAN
Red
Blue
Brown
Orange
White
FM0
⑥ ④⑤ ③ ②
①
⑥ ④⑤ ③ ②
①
(a)

Inspection of electronic expansion valve
6
White
Yellow
Orange
Blue
Red
54
3
2
1
• Inspection of electronic expansion valve as a separate unit
Measuring point Resistance when normal
(b)

Outdoor fan motor check procedure
②
sub
outdoor
main
main
main
(i)
(ii)
(iii)
(iv)
DC
source
(i) Outdoor main PCB output check

Mitsubishi SCM45ZS-S Specifications

General

Brand	Mitsubishi
Model	SCM45ZS-S
Category	Air Conditioner
Language	English