Strainer Valve; Strainer Cover (Debris Recovery); How To Remove The 3-Way Valve/3-Way Valve Motor - Mitsubishi Electric EHST17D-VM2D Service Manual

From the previous page.
DISASSEMBLY PROCEDURE
<Strainer valve>
(6) Remove the 2 screws on the strainer valve stay. (Photo 5-1)
(7) Remove the strainer valve by detaching the quick con-
nection.
• When reinstalling the quick connection, use a new
O-ring.
• Refer to Procedure 25 for how to attach and detach the
quick connection.
(8) Remove the strainer valve stay by removing the 2
screws. (Photo 5-5)
• Reuse the removed strainer valve stay and the strainer
valve stay fixing screws.
Note: Skip steps (2) and (3) when replacing the strainer
valve only.
<Strainer cover (debris recovery)>
(5) Remove the cover using 2 spanners: one to hold the
strainer valve and the other to turn the cover. (Photo 5-5)
• Be sure to reattach the mesh after washing it. (Photo 5-6)
• When reinstalling the cover, use a new packing. (Photo
5-6)
Note: Skip Steps (2) and (3) above when washing the strain-
er mesh only.

6. How to remove the 3-WAY VALVE/3-WAY VALVE MOTOR

(1) Remove the front panel. (Refer to Procedure 1.)
(2) <E**T17*/20D series>
Disconnect the CNV1 connector on the controller board.
(Photo 4-2)
<E**T20C/20X/30* series>
Disconnect the CN851 connector on the controller board.
(Photo 4-2)
(3) Release the 3-way valve motor lead wire from the cable
clamp, the fastener and the cable strap in the control
box, and the cable strap, the fastener and the band
below the control box. (Photos 4-1 and 10-1)
(4) Remove the 3-way valve by removing the fastener.
• When reinstalling the fastener, use new O-ring. A and B
shown represent the bottom and the top directions of
the 3-way valve, respectively.
Note:
Before replacing the motor, be sure to power off the
cylinder unit.
Failure to do so may cause electric shock or cause the
3-way valve to malfunction.
OCH714A
PHOTOS/ FIGURES
Photo 5-5
Screws
Photo 5-6
Strainer mesh
Photo 6-1 (E**T17*/20D series)
Fastener
O-ring
3-way valve
Photo 6-2 (E**T20C/20X/30* series)
3-way valve
69
Cover Strainer mesh (inside)
Strainer valve stay
Cover
B
Fastener
O-ring
3-way
valve
motor
O-ring
A
Fastener
B
Fastener
O-ring
Fastener
O-ring
Fastener
A
Packing
O-ring
3-way
valve
motor