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108
(3)
Inverter assembly
(Continued)
Disconnect the lead wires and connectors connected to
the other parts from the P.C. board assembly.
1) Lead wires
• Lead wires connected to compressor:
Disconnect the connector (3P).
• Lead wires connected to reactor:
Disconnect the two connectors (2P).
2) Connectors
CN300: Outdoor fan motor (3P: white)
CN600: TE sensor (2P: white)
CN700: PMV (6P: white)
CN603: TS sensor (3P: white)
CN601: TD sensor (3P: white)
CN602: TO sensor (2P: yellow)
CN704: 4-way valve (2P: white)
CN604: TL sensor (2P: white)
CN500: Bimetal thermostat (2P: blue)
CN501: High pressure switch (2P: green)
NOTE
These connectors have a disconnect prevention
mechanism: as such, the lock on their housing must be
released before they are disconnected.
Connectors with locking mechanisms: as such,
to disconnect them, they must be pressed in
the direction of the arrow while pulling them out.
(4)
P.C. board
assembly
1) Remove the screws (2 pcs, M4 × 8 truss screws)
fixing inverter box and P.C. board base.
2) Remove the earth screw fixing inverter box and earth
lead.
3) Remove the P.C. board assembly from the P.C.
board base. (Remove the heat sink and P.C. board
assembly while keeping them screwed together.)
NOTE
Disengage the four claws of the P.C. board base, hold
the heat sink, and lift to remove it.
4) Remove the two fixing screws used to secure the
heat sink and P.C. board assembly.
NOTE
When mounting the new P.C. board assembly, ensure
that the P.C. board is inserted properly into the P.C.
board base support groove.
No.
Part name
Procedure
Remarks
CN700
CN604 CN600
CN601
CN501
C
N806
CN602
CN603
CN500
CN704
CN300
CN703
CN807
Inverter box
Inverter box
Inverter box
Earth lead wires
Earth lead wires
Earth lead wires