Mitsubishi EHST20D-YM9C User Manual

PHOTOS
DISASSEMBLY PROCEDURE
84
7. How to remove the flow sensor
(1) Remove the front panel (Refer to Procedure 1).
(2) Disconnect the CN1A connector on the controller board.
(Photo 4-2)
(3)Releasetheflowsensorleadwirefromthecableclamp,
thefastenerandthecablestrapinthecontrolbox,and
thecablestrap,thecoatedclampandthe3bandsbelow
thecontrolbox.(Photos4-1and10-1)
(4) Close (OFF) the strainer valve. (Photo 5-1)
•
Whenthestrainervalvehandleisstiff,useatooltogrip
the handle and turn it carefully.
• Whenopeningorclosingthestrainervalve,ensuretodo
sofully,nothalfway.
(5)Loosenthenutsusing2spanners,andremovetheflow
sensor;onetoholdtheflowsensorandtheothertoturn
the nut. (Photos 7-1 and 7-2)
•Whenreinstallingtheflowsensor,usenewO-rings.
(Photos 7-1 and 7-2)
Photo 7-1
Photo 7-2
Sensor part
O-ring
Leadwire
Nut(G1")
O-ring
Place to hold
theflowsen-
sorwitha
spanner
Flowdirection
Nut(G1")
O-ring
Flowsensor
Photo 7-3
Photo 7-4
Sensor part
Leadwire
O-ring
Flowdirection
O-rings
Flowsensor
R2 models
Same diameter
quick connection
O-ring
<For R2 models>
(5)Removetheflowsensorbydetachingthesame
diameter quick connection. (Photos 7-3 and 7-4)
•Whenreinstallingtheflowsensor,usenewO-rings.
(Photos 7-3 and 7-4)
•RefertoProcedure23forhowtoattachand
detach the quick connection.
Note:Settheflowsensorinthedirectionofthearrow
printedontheflowsensor,andinthewaythatthe
sensorpartfacestotheleft(rightforR2models).
(Photo 7-1 and 7-3)
Same diameter
quick connection
OCH570C

Mitsubishi EHST20D-YM9C Specifications

General

Brand	Mitsubishi
Model	EHST20D-YM9C
Category	Heat Pump
Language	English