Mitsubishi Electric EHST20C-VM2C.UK Service Manual page 70

DISASSEMBLY PROCEDURE
10. How to remove the plate heat exchanger (P-HEX)
(Refrigerant - Water)
<EHST20C model>
(1) Pump down the refrigerant circuit and close the stop
valve at the outdoor unit side.
(Refer to 12. SUPPLEMENTARY INFORMATION.)
(2) Remove the front panel (Refer to Procedure 1).
(3) Remove the control box (Refer to Procedure 4).
(4) Remove the DIV frame by cutting the band and removing
2 screws on it. (Photo 10-1)
(5) Cut the bands bundling the pipes. (Photos 10-1 and 10-2)
(6) Remove the 2 flare nuts on the refrigerant piping on top
of the cylinder unit. (Photo 10-3)
Photo 10-2
Photo 10-3
OCH570
Screws
Screw
Band
P-HEX
Screws
Bands
Flare nuts
Top panel
70
PHOTOS
Photo 10-1
Band DIV frame
Cable
strap
Coated
clamp
Screw
Bands
Band
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