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Inverter
control
P.C. board
assembly
Inverter
control
P.C. board
assembly
Groove for
P.C. boaed
Heat sink
Inverter box
(Metal sheet)
No.
Part name
IPDU P.C.
board
Procedure
1) Perform the works in and .
2) Remove the connectors and the lead wires
which are connected from IPDU P.C. board to
the other parts.
1. Connector
CN04 :Connection with cycle P.C. board (3P: White) *(Note 1)
CN05 :Connection with cycle P.C. board (2P: White) *(Note 1)
CN06 :Connection with cycle P.C. board (5P: Red) *(Note 1)
CN13 :Connection with cycle P.C. board (5P: Red) *(Note 1)
2. Lead wire
CN01 :Connection with power terminal block (Red)
CN02 :Connection with power terminal block (White)
CN03 :Connection with inverter box (Black)
CN09 :Connection with compressor (Red)
CN10 :Connection with compressor (White)
CN11 :Connection with compressor (Black)
Rectifier diode
+
: Orange lead wire *(Note 2)
–
: Gray lead wire *(Note 2)
~
: Red lead wire
(Top)
~
: Brown lead wire
(Bottom)
*(Note 1)
Remove the connectors by releasing lock of the
housing.
3) Remove the control P.C. board assembly from
P.C. board base. (Remove the heat sink and the
inverter control P.C. board assembly as they are
screwed.)
*(Note 2)
Remove the heat sink upward by taking off two
claws of P.C. base and holding the heat sink.
4) Take off two screws which fix the heat sink and
IGBT and also take off support hooks of the P.C.
board (5 positions) to remove IPDU P.C. board.
5) Mount a new IPDU P.C. board.
*(Note 3)
The rectifier diode has polarity, so be careful to
+
and
–
. If
+
and
–
are mistaken, a trouble is
caused.
*(Note 4)
When mounting a new board, check that it is
correctly set in the groove of the base holder of P.C.
board base.
Remarks