No.
Part name
Control board
assembly
Procedure
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
)
CN72 : 4-way valve (2P: yellow)*
CN61 : TE sensor (2P: white)*
CN73 : PMV (6P: white)
CN64 : TS sensor (3P: white)*
CN62 :TD sensor (3P: white)*
CN63 : TO sensor (2P: white)
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
spacer. (Remove the heat sink and control board
assembly while keeping them screwed together.)
3. Remove the two fixing 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
spacer
support
.
Remarks
CN31,CN72,CN61,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.
4
P.C. board base
P.C. board
- 118 -
FILE NO. SVM-17057