Mitsubishi Electric EHSC-MEC Service Manual page 83

DISASSEMBLY PROCEDURE
8. How to remove the plate heat exchanger (continued)
Refer to the previous page for step (1) to (5). (Skip (4).)
<E*SD series>
(6) Remove the pipe (W.C.-W.P) and L joint (upper) together by
detaching the quick connection for the L joint (upper) and the
plate heat exchanger. (Photo 8-7)
• When reinstalling the quick connection, use new O-ring.
• Refer to page 90 for how to attach and detach the quick
connection.
(7) Remove the pipe (P.V.-B.H.) by detaching the quick connection.
(Photo 8-7)
• When reinstalling the quick connection, use new O-ring.
• Refer to page 90 for how to attach and detach the quick
connection.
(8) Close the strainer valve. (Photo 8-7)
• When the strainer valve handle is stiff, turn the handle 90 degrees
clockwise mainly by using a spanner. (Photo 8-5)
• When opening or closing the strainer valve, ensure to do so fully,
not halfway.
(9) Remove the saddle band (upper the strainer) by removing the 2
screws. (Photo 8-7)
(10) Detach the quick connection for the L joint (Lower) and the plate
heat exchanger, and rotate forward the pipe (to W.C.) with the L
joint (lower) by using the quick connection (upper the strainer) as
a fulcrum.
• When reinstalling the quick connection, use new O-ring.
• Refer to page 90 for how to attach and detach the quick
connection.
(11) Remove the TH2 thermistor from the thermistor holder. (Photo 8-7)
Photo 8-7(E*SD series)
L joint (upper)
Quick connection
Screw
Plate heat exchanger
(inside)
Water coil cover
Pump valve
Quick connection
L joint (lower)
O-ring
Screw
Pipe (to W.C.)
Screws
Saddle band
(upper strainer)
OCH571D
O-ring
Pipe (W.C.-W.P.)
Quick connection
Strainer valve
(upper strainer)
Screws
TH2 thermistor
83
PHOTOS/ FIGURES
Booster heater
Saddle band
(upper the pump)
Nut (G1")
Water pump
Pipe (P.V.-B.H.)
O-ring
Quick connection
Screws