105
OCH670
4. Disassembling the electrical parts box (VKA type)
(1) Disconnect all the connectors on the controller circuit board.
(2) Remove the screws
1
, that fix the plate equipped with the
outdoor controller circuit board, and the electrical parts box.
(See Photo 7)
(3) Remove the controller circuit board. (See Photo 7)
(4) Disconnect the connectors of reactor on the bottom plate of
the electrical parts box. (See Photos 8-1 and 8-2)
(5) Remove 4 (100VKA) or 2 (125/140VKA) screws
2
on the rear
plate of the electrical parts box. (See Photos 8-1 and 8-2)
(6) Remove the reactor(s). (See Photos 8-1 and 8-2)
Note: 1.
When reassembling the electrical parts box, make
sure that the wirings are correct.
2.
When exchanging the reactor, make sure to
exchange all the 3 reactors.
(8) Remove 2 electrical parts box fixing screws (4 × 10) and
detach the electrical parts box by pulling it upward. The
electrical parts box is fixed with 2 hooks on the left and 1
hook on the right.
Photo 6 (YKA type)
Electrical
parts box
Electrical parts
box fixing
screw
Photo 5 (VKA type)
Electrical
parts box
Electrical
parts box
fixing screw
Photo 8-1 (125/140VKA)
Screws
2
Electrical
parts box
Reactor
Photo 7
Electrical
parts box
Screws
1
Controller circuit board
(C.B)
Reactor
Reactor
Connectors
of Reactor
Connectors
of Reactor
Connectors
of Reactor
Power circuit board
(behind the C.B)
Photo 8-2 (100VKA)
Screws
2
Reactor
Connectors
of Reactor
Connectors
of Reactor
OPERATING PROCEDURE
PHOTOS/FIGURES
From the previous page.