How To Remove The Control Box - Mitsubishi Electric EHST17D-VM2D Service Manual

DISASSEMBLY PROCEDURE

4. How to remove the control box

(1) Remove the front panel. (Refer to Procedure 1.)
(2) Disconnect only the lead wires in the control box that
connect to the components in the cylinder unit.
Photo 4-2 shows the control box before the related lead
wires are disconnected.
(3) Remove the 4 screws on the bracket (L and R) and
disengage the tab on the control box bracket from the
front frame (L). (Photo 4-1)
(4) Disengage the 2 tabs on the control box bracket (R) from
the front frame (R). (Photo 4-1)
(5) Slightly lift and pull out the control box from the cylinder
unit while tilting the control box backward.
<When swinging the control box to the front>
(2) Remove the 4 screws on the bracket (L and R). (Photo 4-1)
(3) Disengage the tab on the control box bracket (L) from
the front frame (L) and pull the control box by lifting the
left-hand side to swing the control box. (Photo 4-3)
Note: Disconnect the field wiring as necessary.
Photo 4-2
Earth cable of
water pump
(sanitary circuit)
CNP1
connector
CNP4
connector
CNV1
connector
CN851
connector
CN1A connector
Note: The photos shown are of the EHST20C-YM9D model.
OCH714A
Earth cable of
water pump
CNPWM connector
(primary circuit)
PHOTOS/ FIGURES
Photo 4-1
Screw
Bracket (L) Cable clamp
Tabs
Cable
clamp
Cable
strap
Front
frame (L)
Note: The photos shown are of the EHST20C-YM9D model.
Photo 4-3
67
Bracket (R)
Cable
Control
Fastener
strap
box
Control box
Swing
Screw
Tabs
Front
frame (R)