Panasonic CS-VZ9SKE Service Manual page 157

18.3.3 Removing the Power-Supply Box
1 Perform "17.2.1 Removing the Outer Top Panel and Outer Front Panel".
2 Perform "17.2.2 Removing the Electrical Component Covers (2 & 3-way valve Cover and Terminal Plate
Cover)".
3 Disengage 4 tabs of the electrical component cover (the top cover of the control board) (2 locations each on
the right and left sides). Remove the electrical component cover (the top cover of the control board).
4 Remove the fixing screw (1 piece) of the power-supply box and the fixing screw (1 piece) of the power supply
box cover.
5 Disconnect the connectors and terminals.

Wiring from down side
o Lead wires of the compressor (red, blue and yellow)..........Disconnect the connector at the compressor
terminal.
o CN-HOT (white)..........Electromagnetic coil (4-way valve). Wire color: blue, red and black.
o 2 wires of the reactor connecting terminal. Wire color: gray and white.
o CN-TANK (white)..........Compressor temperature sensor.
o CN-TH2 (red)..........Aluminium electric heater tank temperature sensor.
o CN-TH4 (white)..........Aluminium electric heater 3-way valve temperature sensor.
o Lead wires of the aluminium electric heater..........Connector for the thermal fuse & aluminium electric
heater tank. Connector color: red.

Wiring from left side
o CN-MTR1 (red)..........Outdoor fan motor.
o CN-MTR2 (white)..........Outdoor fan motor.
o Lead wires of the base pan heater..........Connector color: white.

Wiring from right side
o CN-STM1 (white)..........Electromagnetic coil (expansion valve).
o CN-STM2 (white)..........Electromagnetic coil (3-way valve).
o CN-TH1 (white)..........Outside air temperature and pipe temperature 1.
o CN-TH3 (blue)..........Outside pipe temperature sensor 2.
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