Disassembly Procedure - Mitsubishi Electric PK-2.5FLD Technical & Service Manual

12

DISASSEMBLY PROCEDURE

PK-4FLSD, PK-4FLSD
OPERATING PROCEDURE
1. Removing the lower side of the indoor unit from the instal-
lation plate
(1) Remove the 2 screws.
Hang the indoor unit hangers to the catches on the instal-
lation plate.
Screws
2. Removing the right side panel
(1) Remove the 2 screws of the right side panel:one on the
bottom and the other on the upper right-hand side.
(2) Disconnect the connector from the adapter case.
(3) Sliding the right side panel to the right, pull it out toward
you.
3. Removing the indoor controller board
(1) Remove the right side panel.
(2) Remove the screw of the electrical box cover, and remove
the cover.
(3) Disconnect the connectors on the indoor controller board.
(4) To unhook the catches on the right-hand side of the indoor
controller board, pull the left-hand side toward you and lift
up the cover to the right. Then the indoor controller board
can be removed.
4. Removing the electrical box
(1) Remove the right side panel.
(2) Remove the screw of the electrical box cover, and remove
the cover.
(3) Remove the room temperature thermistor and the pipe
temperature thermistor.
(4) Disconnect the vane motor connector on the indoor
controller board.
(5) Remove the 2 screws of the electrical box.
(6) Disconnect the connector of the heater lead wire connec-
tor.
(7) Disconnect the connector of the fan motor lead wire.
(8) Remove the electrical box.
, PK-4FLSD
1 2
Metal fixture
33
PHOTOS & ILLUSTRATION
Figure 1
Hanger of indoor unit
Catch of installation plate
Figure 2
Terminal cover
Connector
Electrical box cover
Photo 1
Indoor controller
board
Photo 2
Room temperature thermistor
Connector
Indoor controller
board
Right side panel
Electrical
box cover
Catches
Pipe temperature thermistor
Screws
Electrical box