Mitsubishi Electric EHSD-MED Service Manual page 66

DISASSEMBLY PROCEDURE
7. How to remove the booster heater
Model
EHSC-VM2D ERSC-VM2D
EHSD-VM2D ERSD-VM2D
EHPX-VM2D ERPX-VM2D
EHSC-VM6D EHSD-VM6D
EHPX-VM6D ERSD-VM6D
ERSC-VM6D ERPX-VM6D
EHSC-YM9D EHSC-YM9ED
EHSC-TM9D EHSD-YM9C
EHSD-YM9ED EHSD-TM9D
EHSE-YM9ED ERSE-YM9ED
EHPX-YM9D EHPX-YM9ED
ERSD-YM9D ERSC-YM9D
ERPX-YM9D
Refer to 6. WIRING DIAGRAM
<E*S* series and E*PX series>
(5) <Only E*SC/D series>
Remove the pump valve. (Refer to Procedure 5.)
(6) Remove the flow sensor. (Refer to Procedure 6.)
(7) Remove the L joint and the pipe (B.H.-F.S.) by detaching
the quick connection. (Photos 7-2 and 7-3)
• When reinstalling the quick connection, use new O-ring.
• Refer to Procedure 16 for how to attach and detach the
quick connection.
(8) Remove the flare nut. (Photos 7-2 and 7-3)
(9) <Only E*SC/D series>
Remove the pipe (PUMP-B.H.) by detaching the quick
connection. (Photo 7-2)
<Only E*PX series>
Remove the pipe (OUT-B.H.) by detaching the quick
connection. (Photo 7-3)
• When reinstalling the quick connection, use new O-ring.
• Refer to Procedure 16 for how to attach and detach the
quick connection.
(10) <Only E*PX series>
Remove the saddle band and the rubber tube by
removing the 2 screws on the saddle band. (Photo 7-3)
(11) Remove the 2 screws that hold the heater stay onto the
back panel. Lift the booster heater slightly and remove
the booster heater with the heater stay from the back
panel. (Photos 7-2, 7-3 and 7-4)
(12) Remove the 2 screws on the back of the heater stay
and remove the heater stay from the booster heater.
(Photo 7-4)
• Reuse the removed heater stay and the screws.
Photo 7-4
OCH712C
Lead wire No. Contactor
No.1 BHC1-U
No.2 BHC1-V
No.1 BHC1-U
No.2 BHC1-V
No.4 BHC2-U
No.5 BHC2-V
No.1 BHC1-U
No.2 BHC1-V
No.3 BHC1-W
No.4 BHC2-U
No.5 BHC2-V
No.6 BHC2-W
Screws
Heater stay
PHOTOS/ FIGURES
Photo 7-2 E*S* series)
(
Quick connection
Heater stay
Pump valve
Pipe
(PUMP-B.H.)
Note: The photo shown is of the EHSC-VM2ED.UK model.
Photo 7-3 (E*PX series)
Screw
Back
panel
Heater stay
Quick
connection
Screw
O-ring
Pipe
(OUT-BH)
Screws
Rubber tube
66
Back panel
Flare nut
Booster
O-ring
heater
L joint
Screws
Pipe (B.H.-F.S.)
Flow sensor
O-ring
Quick
connection
Flare nut
Quick connection
O-ring
Booster
heater
Flow
sensor
Saddle band