Mitsubishi Electric MJ-E14CG-S1-IT, Service Manual

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5. Wiring Diagram
1) Wiring Diagram
(1) Current fuse ....................Overcurrent flow caused by deterioration in electrical parts or other problems
turns the power source to OFF.
<Current setting: 2A>
(2) Motor protector ................The compressor stops operating if the room temperature exceeds 35°C.
(Overload relay) The compressor will also shut down when malfunctions or other problems
cause the current flow to exceed 5.3A.
(3) Control circuitry ...............The room temperature thermister senses temperature below about 0°C, and
shuts down the compressor.
(4) Thermal fuse ...................When blower motor temperature exceeds 133°C due to blower locking or other
malfunctions, blower operation shuts down.
(5) Current fuse for compressor protection
................... If the protection by motor protector and control circuitry is not effective,
the compressor shuts down when the current to it exceeds approximately 10A.
<Setting current: 10A>
Safety Devices
P1
P11
P20
P100 P2 P3 P5
P4
FM
S
C
R
CM
P200
P10
P13
SV
P201
P101
SM
White
White
Orange Orange
Red Red
Thermistor (Tube
temperature sensing)
1 ℃ (defrost)/12 ℃ (end)
Sensors
(Humidity and room
temperature sensing)
Power control board
Blue
Y
ellow/Green
Brown
Gray
Gray
Gray
Gray
Blue Blue Blue
Black
Gray
White
Red
Y
ellow
Operation
control board
Float switch
Power plug
Stepping motor
Run capacitor
Compressor
Solenoid valve Blower fan motor
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