OPERATING PROCEDURE
PHOTOS/FIGURES
13. Removing the plate heat exchanger
(1)
Remove the electrical parts box. (Refer to procedure 4)
(2)
Remove 3 valve bed fixing screws (4 × 10), 2 valve and
fixing screws (5 × 16) then remove the valve bed.
(3)
Remove cover panel (front) fixing screws (2 for front/5 ×
12) to remove the cover panel (front).
(4)
Remove the water pipe.
(5)
Remove 5 right side panel (R) fixing screws (5 × 12)
(4:rear of the unit/1: right side base) and remove the side
panel (R).
(6)
Recover the refrigerant.
(7)
Remove 2 welded pipes of plate heat exchanger inlet
and outlet.
(8)
Remove 3 plate heat exchanger fixing screws (4 × 10),
then remove the plate heat exchanger.
Note 1: Recover refrigerant without letting it out in the air.
Note 2: Before removing the thermistor <Inlet water>
(TH32), recover water in the plate heat exchanger
Photo 20
14. Removing the reactors (ACL1, ACL2, ACL3) (PUZ-HWM140Y)
(1)
Remove the service panel. (Refer to procedure 1)
(2)
Remove the top panel. (Refer to procedure 1)
(3)
Remove the 6 screws, that fix the front panel and remove
the front panel.
(4)
Remove the 2 screws, screw
8
and
9
(both 4 × 10), that
fix the separator, screw
8
from the stay and screw
9
from the bottom of the separator, and tilt the separator to
the side of the fan motor slightly. (See Photo 21)
(5)
Remove the 4-way valve.
(6)
Disconnect the lead wires from the reactor and remove
the 4 screws, screw
0
, that fix the reactor to remove the
reactor. (See Photo 22 and 23)
Note 1: The reactor is very heavy (4 kg)!
Be careful when handling it.
Note 2: The reactors can be removed if the 4-way valve
is not removed.
Photo 22
Photo 23
Photo 21
Plate heat
exchanger
Plate heat exchanger
fixing screw
Heat exchanger
Plate heat exchanger
fixing screws
Reactors
Reactor box
Propeller
Screw
8
Stay
Screw
9
Reactor box
Electrical parts box
Screw
0
Reactor box
73
OCH748
