OPERATING PROCEDURE
PHOTOS/FIGURES
4. Disassembling the electrical parts box
(PUHZ-HW112/140Y)
(1)
Disconnect all the connectors on the controller circuit board.
(2)
Remove the 3 screws, screw
1
,
2
and
3
, that fix the
plate equipped with the outdoor controller circuit board,
and the electrical parts box, screw
1
from the front and
the screw
2
and
3
from the bottom of the electrical parts
box. (See Photo 6 and 7)
(3)
Slide the plate in the direction of the arrow A and remove it.
(See Photo 6)
(4)
Remove the lead wires from the clamp on the bottom of
the electrical parts box. (See Photo 8)
(5)
Remove the 3 screws, screw
4
and
5
, that fix the bot-
tom side of the electrical parts box and remove the bot-
tom side plate by sliding in the direction of the arrow B.
(See Photo 8 and 9)
(6)
Remove the noise filter circuit board. (See Photo 10)
(7)
Remove the screw
6
and
7
, and remove the plate that
equips the converter circuit board. (See Photo 9)
(8)
Remove the converter circuit board from the plate.
(See Photo 9)
Note: When reassembling the electrical parts box, make
sure the wirings are correct.
Photo 6
Photo 7
Photo 8
Photo 9
Photo 10
A
Electrical
parts box
Screw
1
Controller
circuit board
(C.B.)
Screw
5
Screw
4
Bottom plate of electrical parts box
Clamp
Screw
3
Screw
2
Bottom plate of
electrical parts
box
Electrical parts
box
Heat sink
Power circuit
board (P.B.)
Noise fi lter
circuit board
(N.F.)
B
Converter
circuit board
(CONV.B.)
Screw
6
Noise fi lter circuit board (N.F.)
Electrical parts box
Screw
7
114
OCH439M