Midea CTBU-09HWFN1-M Service Manual page 179

CN2(yellow)
CN1(red)
CN6(black)
CN3(yellow)
U、V、W(black)
CN9(10p,white)
4) Remove the screws
fixing the IPM board and remove
the IPM board.
5) Disconnect the connectors
and wires connected from PCB
and other parts.
Connectors:
CN8: Discharge temperature sensor
(2p,white)
CN12：Heatsink temperature
sensor(2p,red)
CN9:T3/T4 temperature sensor
(2p/2p,white)
CN15: Electronic expansive valve
(6p,red)
CN10: High and low pressure switch
(2p/2p, white)
Wires:
CN17/CN18: 4-way valve (blue-blue)
CN19/CN20: connected to crankcase
heating cable. (black-red)
CN24/CN25: Electric heater of
chassis (orange-orange)
CN1:L-IN (red or white)
CN3:N-IN (black)
6) Disconnect the grounding
176
CN1/CN3
CN17/CN18
CN19/CN20
CN24/CN25