Mitsubishi Electric EHSD-MED Service Manual page 65

DISASSEMBLY PROCEDURE
6. 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 6-1)
(3) Release the flow sensor lead wire from the fastener and
the 2 cable straps. Feed the lead wire out the control box
without putting strain on the CN1A connector. (Photo 6-1)
(4) Swing the control box to the front. (Refer to Procedure 4.)
(5) Remove the flow sensor by detaching the same diameter
quick connection. (Photo 6-2)
• When reinstalling the flow sensor, use new O-rings.
(Photo 6-3)
• <E*SC/D series and E*PX series>
Set the flow sensor in the orientation of the arrow
printed on the flow sensor and in the way that the
sensor part faces to the left. (Photo 6-2)
<E*SE series>
Set the flow sensor in the orientation of the arrow
printed on the flow sensor and in the way that the
sensor part faces to the front.
• Refer to Procedure 16 for how to attach and detach the
quick connection.
Photo 6-3
7. How to remove the booster heater
(Steps (1) through (4) are applied to all the following units.)
(1) Remove the front panel. (Refer to Procedure 1.)
(2) Disconnect the booster heater lead wires from the CNBHT
connector on the controller board and from the BHC1
(Lead wire No.1, No.2 and No.3) and BHC2 (Lead wire
No.4, No. 5 and No.6) contactors respectively. (Photo 7-1)
(3) Release the booster heater lead wire from the 2 cable
straps. Feed the lead wires put the control box without
putting strain on the CNBHT connector, the BHC1 and
BHC2 contactors. (Photo 7-1)
(4) Swing the control box to the front. (Refer to Procedure 4.)
Note: Do not mix up the lead wire numbers when
re-connecting the lead wires to the contactors as
the lead wire numbers are different depending on
the models.
OCH712C
PHOTOS/ FIGURES
Photo 6-1
Cable straps
Photo 6-2
Sensor part
O-rings
Note: The photo shown is of the EHSD-MED.UK model.
Photo 7-1
Booster heater
connector (CNBHT)
Lead
wire
Cable straps
Note: The photo shown is of the ERSE-YM9ED.UK model.
65
CN1A
connector
Fastener
Same diameter
quick connection
Flow sensor
Flow direction
Same diameter
quick connection
Control box
Lead wire
O-ring
O-ring
BHC1
BHC2