Mitsubishi Electric PUZ-SM100VKA2 Service Manual page 87

From the previous page.
OPERATING PROCEDURE
4. Disassembling the electrical parts box (YKA2 type)
(1) Disconnect all the connectors on the controller circuit board.
(2) Remove the screw 1, that fix the plate equipped with the
outdoor controller circuit board, and the electrical parts box.
(See Photo 9)
(3) Remove the controller circuit board. (See Photo 9)
(4) Disconnect all the connectors on the noise filter board.
(See Photo 10)
(5) Remove 9 supports on the noise filter circuit board. (See
Photo 10)
(6) Remove the noise filter circuit board. (See Photo 10)
(7) Remove the noise filter plate fixing screws. (See Photo 10)
(8) Disconnect the connectors of reactor on the bottom plate of
the electrical parts box. (See Photo 11)
(9) Remove 4 screws 2 on the bottom plate of the electrical
parts box. (See Photo 11)
(10) Remove the reactor. (See Photo 11)
Note: 1. When reassembling the electrical parts box, make
sure that the wirings are correct.
Photo 10
Power circuit board
(P.B.)
Noise filter
circuit board
(N.F.)
Supports
5. Removing the thermistor <2-phase pipe> (TH6)
(1) Remove the service panel. (See Photo 1)
(2) Remove the top panel. (See Photo 1)
(3) Disconnect the connector TH7/6 (red), on the controller
circuit board in the electrical parts box.
(4) Loosen the 2 wire clamps on top of the electrical parts box.
(5) Pull out the thermistor <2-phase pipe> (TH6) from the
sensor clip.
Note: When replacing thermistor <2-phase pipe> (TH6),
replace it together with thermistor <Ambient> (TH7)
since they are combined together.
Refer to procedure No.6 to remove thermistor
<Ambient>.
OCH774A
Electrical parts box
Noise filter plate
fixing screws
87
PHOTOS/FIGURES
Photo 9
Noise filter circuit board
(N.F.)
Photo 11
Screws2
Photo 12
Electrical parts box
Clamp
Electrical parts box
1
Screw
Controller circuit board
(C.B.)
Electrical
Reactor
parts box
Connectors
of Reactor
Thermistor
<2-phase pipe>(TH6)