CN17:T3/T4 temperature sensor 
(2p/2p,white) 
CN7: Discharge temperature sensor 
(2p,white) 
CN15:T2B-A,B temperature sensor 
(2p/2p,white) 
CN18/CN19: Electronic expansion 
valve A,B (6p/6p,red/red) 
CN25/CN23: S-A,S-B 
(3p/3p,white/white) 
Wires: 
CN1/CN2: 4-way valve (blue-blue) 
CN5/CN6: Crankcase heating cable 
(red-red) 
CN3:L-IN (red) 
CN4:N-IN (black) 
8)  Disconnect the 
grounding wire (yellow-green) 
after removing the big handle 
and the right-rear panel. 
9)   Remove the PCB board.