Mitsubishi Electric EHSC-VM2B Service Manual page 75

DISASSEMBLY PROCEDURE
8. How to remove the plate heat exchanger (continued)
(11) Remove the pump support under by removing the 4
screws. (Photo 8-4,5)
Note: To avoid dropping of the pump support under, hold
it by hand when removing the last screw.
(12) Remove the G1" nut on the flexible hose end that
connects to the booster heater. (Photo 8-2)
* When reinstalling the G1" nut, use a new G1" gasket.
(13) Close the strainer valve and remove the G1" nut on the
water outlet side of the strainer using two spanners: one
to hold the strainer and the other to turn the G1" nut.
(Photo 8-2)
* When reinstalling the G1" nut, use a new G1" gasket.
(14) Remove the rubber mount by cutting the band.
(Photo 8-2)
(15) Remove the flow switch. (Refer to Procedure 6.)
* Do not remove the CN2F connector on the controller
board.
* When reinstalling the flow switch, use a new O-ring.
(16) Remove the flare nuts on the gas and liquid pipes under
the hydrobox using two spanners: one to hold each
flare joint and the other to turn each flare nut.
(17) Remove the water coil cover by removing the 2 screws.
(Photo 8-6)
(18) Remove the plate heat exchanger assembly from the
hydrobox. Cut the band and remove the flexible hose
by removing the G1" nut at the top of the plate heat
exchanger. Remove the G1" nut at the bottom of the
plate heat exchanger. (Photos 8-7, 8-8, 8-9)
* When reinstalling the G1" nuts, use new G1" gaskets.
Photo 8-8
Nut (G1")
Refrigerant piping
Photo 8-9
OCH532A
Gasket (G1")
Plate heat exchanger assembly
Photo 8-4
Screw
Pump
support
under
Photo 8-5
ERSC-VM2B only
Screw
Photo 8-6
Screws
Photo 8-7
Plate heat
exchanger
Flexible hose
Nut (G1")
75
PHOTOS
Pump support under
Water coil cover
Nut (G1")
Refrigerant piping
Screw
Screw
Screw
Band