Midea MCH2U-18PHH2 Service Manual page 123

connected from PCB and other
parts.
Connectors:
CN8:T3/T4 temperature sensor
(2p/2p,white)
CN33: Discharge temperature sensor
(2p,white)
CN13:T2B-A,B,C,D temperature
sensor (2p/2p/2p/2p,white)
CN18/CN17/CN21/CN20: Electronic
expansive valve A,B,C,D
(6p/6p/6p,red/red/red)
CN30/CN29/CN28/CN27: S-A,S-B,S-
C,S-D (3p/3p/3p/3p,white)
CN9: High and low pressure switch
(2p/2p, white)
Wires:
CN3/CN22: 4-way valve (blue-blue)
CN4/CN40: Crankcase heating cable
(black-red)
CN10/CN44: Crankcase heating
cable (black-red)
CN1:L1-IN (red)
CN2:L2-IN (black)
8) Disconnect the
grounding wire (yellow-green)
after removing the right-rear
panel.
9) Remove the PCB board.
CN55
CN18/CN17/CN21/CN20
CN8 CN9
CN3
CN4
CN10
CN22
CN40
CN44
123
CN30/
CN29/
CN2 CN1