Comp-Ipdu P.c. Board (Mcc-1595) Replacement Procedure - Carrier MMY-MAP0724FT9UL Service Manual

14-5. Comp-IPDU P.C. Board (MCC-1596) replacement procedure
Parts code Description
Inverter P.C. board for
4316V489
Compressor
This board is commonly installed in different models before shipment. Set the dip switch (SW800) setting of the
service board to the switch setting before replacement.
Replacement Steps:
(1) Turn off the power supply of the outdoor unit and allow at least 3 minute for the capacitor to discharge.
Check the voltage between (A) and (B) to see it is surely discharged before replacement.
(2) Remove all the connectors and fast-on terminals (
(Remove the connectors and fast-on terminals by pulling the connector body. Do not pull the wire.).
(3) Remove all the 4 screws (
(These screws are to be re-used after procedure.)
(4) Remove all the 2 screws (
(5) Remove the Compressor IPDU from the 4 spacers (
pliers or cutting the top of the spacers by nippers.
Ex. MMY-MAP0724FT6UL
Compressor IPDU
(MCC-1596)
(6) Confirm that no dirt or damage is on the heat sink. As it can
reduce the heat transfer efficiency, and cause a breakdown.
Applicable model
MMY-MAP0724FT6UL
MMY-MAP0964FT6UL
MMY-MAP1204FT6UL
2
) which secures the Compressor IPDU to the Heat sink.
3
) which secures the Compressor IPDU to the Frame.
Compressor IPDU
4
Spacer
1
Black Wire
4
Spacer
4
Spacer
SW800
4
2
Spacer
screw
3
Fixation screw
Remove the
PCB
Heat sink
P.C. board type code
MCC-1596
1
) connected to the Compressor IPDU.
4
) by pinching the top of the spacers by round-nose
1
White Wire
3
Fixation screw
1
Red Wire
2
screw
1
1
1
Red Wire
1
White Wire
1
Black Wire
– 248 –
Product code
ASM-PCB
(A3I PDU)
Pinch this part by
round-nose pliers
for removing the PCB.
(B) DB01 (–)
4
Spacer
(A) DB01 (+)
Cut this part by nippers
for removing the PCB.
4
Spacer
(4 Spacer are in packed
in this service assembly)
or
Cut