Mitsubishi Electric EHSE-YM9EC Service Manual page 65

DISASSEMBLY PROCEDURE
9. How to remove the plate heat exchanger (continued)
• When reinstalling the different diameter quick connection,
use a new O-ring.
• R efer to page 70 for how to attach and detach the
different diameter quick connection.
(5) R emove the TH2 thermistor from the thermistor holder.
(Photo 9-3)
(6) R emove the flare nuts on the gas and liquid pipes under
the hydrobox using 2 wrenches: one to hold each flare
joint and the other to turn each flare nut.
(7) R emove the water coil cover by removing the 6 screws.
(Photo 9-2)
(8) R emove the 2 screws on the strainer valve stay.(Photo
9-3)
(9) D etach the same diameter quick connection. (Photo 9-3)
(10) L ift up the plate heat exchanger and remove the
strainer valve by detaching the different diameter quick
connection. (Photo 9-4)
• When reinstalling the same and different diameter quick
connections, use a new O-ring.
• Apply grease on the O-ring using a plastic bag, etc.
(Refer to Photo 14-4 on page 70)
(11) P ull out the plate heat exchanger assembly from the
hydrobox by lifting it upward. (Photo 9-5)
Photo 9-5
OCH590B
Photo 9-3
Plate heat exchanger
Photo 9-4
Plate heat exchanger
assembly
65
PHOTOS
Different diameter
quick connection
Strainer valve
Same
diameter
quick
connection
TH2 thermistor
Plate heat exchanger
assembly
Strainer valve
Screws