Mitsubishi Electric PUZ-WM112VAA, Руководство по обслуживанию

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85
OCH727
Pressure relief valve
Nut connecting the
pressure relief valve
OPERATING PROCEDURE PHOTOS/FIGURES
15. Removing the plate heat exchanger
(1) Remove the nozzle of plate heat exchanger for the water
piping.
(2) Remove the service panel. (See Photo 1)
(3) Recover refrigerant.
(4) Remove the piping.
(5) Remove the plate heat exchanger fixing screws (1 for
right/ 4 × 10 and 1 for rear/ 4 × 10), then slide the plate
heat exchanger upward to remove it.
(The plate heat exchanger is fixed to the base with a
hook on the bottom.)
Note 1: Drain the water in the plate heat exchanger before
removing the water piping.
Note 2: Recover refrigerant without spreading it in the air.
Photo 14
16. Removing the reactor (ACL1, ACL2, ACL3) (Y model only)
(1) Remove the electrical parts box. (See Photo 3-1)
(2) Remove the reactor assy fixing screws (4 for right/ 4 ×
10), then slide the reactor assy upward to remove it.
(3) Remove the reactor fixing screws (4 for front/ 4 × 10) to
remove the reactor on the reactor assy.
Note 1: Pay extra attention when handling the reactor
since it is very heavy (4.1 kg).
Photo 15
17.
Removing the pressure relief valve and the gasket
(1) Remove the service panel. (See Photo 1)
(2) Remove the top panel. (See Photo 1)
(3) Remove the cover panel. (See photo 1)
(4) Remove the stay and the side panel (R). (Refer to
Procedure 9)
(5) Remove the electrical parts box. (Refer to Procedure 3)
(6) Drain the water in the plate heat exchanger.
(7) Loosen the nut of the pressure relief valve by a span -
ner (flat across width: 19mm).
(8) Remove the pressure relief valve and the gasket.
• When reinstalling the G3/8" nut, use a new
G3/8"gasket.
Note1: The water may spout if the pressure relief
valve is removed while the water is still inside
the plate heat exchanger.
Note2: Tightening torque of the nut: 15 ± 1 N.m.
Photo 16
Reactors Reactor assy
Nozzle of
plate heat
exchanger
Plate heat exchanger
fixing screws
Plate heat
exchanger