Carrier MMY-MAP0724FT9UL Service Manual page 249

(7) Set the dip switch (SW800) setting of the service board to match the switch setting from the original PCB.
Set the dip switch (SW800) depending on the position of the IPDU within the electrical box, as shown in the
following diagram.
Dip Switch
(SW800)
Compressor IPDU (Left Side)
For Compressor: 1
Dip switch (SW800) setting :
ON
1 2 3 4
ON OFF OFF OFF
(8) Screw the Compressor IPDU to the heat sink by the 4 screws
that were removed in step (3).
If the screws are loose, the effect component will generate
heat, and cause it to breakdown. Do not use an electric driver
or an air driver.
As it can cause component damage. The torque of the
screws for DB01 is "0.55N•m (0.41ft•lbs)" and it for Q201 is
"1.2N•m (0.89ft•lbs)".
(9) Re-connect the connectors and fast-on terminals (
Be sure that all the connectors and the fast-on terminals are
connected correctly and securely inserted.
(10) If the components on the PCB were bent during this
procedure, straighten them so they do not touch other
parts.
(11) Install the cover, then turn on the supply. Check the
operation.
MMY-MAP0724FT6UL
Compressor IPDU (Right Side)
For Compressor: 2
Dip switch (SW800) setting :
ON
1 2 3 4
OFF ON OFF OFF
Compressor IPDU (Left Side)
For Compressor: 1
Dip switch (SW800) setting :
ON
1 2 3 4
ON OFF OFF OFF
1
).
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MMY-MAP0964FT6UL
MMY-MAP1204FT6UL
Compressor IPDU (Middle) Compressor IPDU (Right Side)
For Compressor: 2 For Compressor: 3
Dip switch (SW800) setting : Dip switch (SW800) setting :
ON
1 2 3 4
OFF ON OFF OFF
ON
1 2 3 4
ON ON OFF OFF
Fixation
screw
DB01
Q201
Fixation
screw