Mitsubishi EHST20C-VM2C - Page 89

DISASSEMBLY PROCEDURE
PHOTOS
89
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Photo 10-4
Refrigerantpipes
P-HEX
Fromthepreviouspage.
10. How to remove the plate heat exchanger (P-HEX)
(Refrigerant - Water)
(7) Remove the thermistor (TH2) from the thermistor pocket
(Refer to Procedure 20).
(8)Removethemanometerwiththemanometercover
(Refer to Procedure 11).
(9) Loosen the flare nuts for Air vent (automatic) and
pressure relief valve (3 bar), and remove the Air vent
(automatic)andpressurereliefvalve(3bar)together
withtheflarejoints.(RefertoProcedure11)
(10)Loosenandremovetheflarenutwhichconnectsthe
expansionvessel.(Photo12-1)
(11) Loosen and remove the flare nut on booster heater,
then remove the pipe. (over B.H.) (Photo 10-4)
(12)Removethestrainervalve,thewaterpumpandthe
pump valve (Refer to Procedure 5).
(13)Removethenut(G1")ontheBsideof3-wayvalveto
make the connection part free. (Photo 6-1)
•Whenreinstallingthenuts,useanewG1"gasket.
(14) Remove the booster heater (Refer to Procedure 8).
(15)Removethewatercoilcoverbyremovingthescrew1
to5.RemovetheW.C.topcoverbyremovingthescrew
6and7.Removethepumpstaybyremovingthescrew
8 to 11. (Photo 10-5)
•Reusethese3platesandfixingscrews.
(16)
Pull out the P-HEX. (Photos 10-6 and 10-7)
Photo 10-5
Photo 10-6
Photo 10-7
Expansionvessel
Pipe (over B.H.)
P-HEX
Screw7Screw6
Screw3
Screw5
W.C. top cover
P-HEX
Screw2
Screw1
Water coil
cover
Screw4
Screw8
Screw9
Pump
stay
Screw10
Screw11
OCH570C