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OPERATING PROCEDURE
11. Removing high pressure sensor (63HS)
(1) Remove the service panel. (See Photo 1)
(2) Remove the top panel. (See Photo 1)
(3) Remove the electrical parts box. (See Photo 4)
(4) Recover refrigerant.
(5) Remove the welded part of high pressure sensor.
Note 1: Recover refrigerant without spreading it in the air.
Note 2: The welded part can be removed easily by remov-
ing the side panel (R).
Note 3: When installing the high pressure sensor, make
sure to cover it with a wet cloth to prevent it from
heating (100˚C or more), then braze the pipes so
that the inside of pipes are not oxidized.
12. Removing the plate heat exchanger
(1) Remove the service panel. (See Photo 1)
(2) Remove the top panel. (See Photo 1)
(3) Remove the cover panel (front).
(4) Remove the electrical parts box. (See Photo 4)
(5) Remove the stay.
(6) Remove the water pipes connected to water outlet and
water inlet.
(7) Remove the side panel (R).
(8) Recover the refrigerant
(9) Remove 2 welded pipes of plate heat exchanger inlet
and outlet.
(10) Remove 3 plate heat exchanger fixing screws (4 × 10),
then remove the plate heat exchanger.
Note 1: Recover refrigerant without spreading it in the air.
Note 2: Before removing the thermistor <Inlet water>
(TH32), recover water in the plate heat exchanger.
OCH562D
PHOTOS/FIGURES
Photo 12
High pressure sensor (63HS)
Photo 13
Plate heat
exchanger
Plate heat exchanger
fixing screws
55
Low pressure switch (63L)
Low pressure switch (63L)
Heat exchanger
Plate heat exchanger
fixing screw
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