No.
Part name
Procedures
Remarks
4
Control board assembly
NOTE
These connectors have a disconnect
prevention mechanism: as such, the lock
on their housing must be released before
they are disconnected.
2. Remove the control board assembly from the
P.
P.C. board base. (Remove the heat sink a
control board assembly while keeping them
screwed together.)
Disengage the four claws of the P.C. board
base, hold the heat sink, and lift to remove it.
3.
Remove the two f
i
xing screws used to secure
the heat sink and control board assembly.
4.
Mount the new control board assembly.
NOTE
When mounting the new control board
assembly, ensure that the P.C. board is
inserted properly into the P.C. board
support groove.
NOTE
P.C. board base
P.C. board
NOTE
NOTE
1.
Disconnect the leads and connectors connected to
the other parts from the control board assembly.
1)
Leads
• 3 leads (black, white, orange) connected to
terminal block.
• Lead connected to compressor :
Disconnect the connector (3P).
• Lead connected to reactor :
Disconnect the two connectors (2P).
2)
Connectors
CN31 : Outdoor fan motor (3P: white)*
(* : See
Note
)
CN73 : PMV (6P: white)
CN64 : TS sensor (3P: white)*
CN62 :TD sensor (3P: white)*
CN63 : TO sensor (2P: white)
CN31,CN73,CN64,
CN62
and CN63
are connectors with
locking
mechanisms: as such,
to
disconnect them, they must
be
pressed in the direction of
the
arrow while pulling them
out.
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