Mitsubishi Electric CMB-WM108V-AA Service Handbook page 215

[ VIII Troubleshooting ]
3. LEV coils (LEV1, LEV2, LEV3)
Operation procedures
(1) Remove four fixing screws from the ser-
vice panel (right) and then remove the
service panel (right).
(2) Disconnect the corresponding LEV coil
connectors from the control board.
(3) Remove the control box and then re-
move the LEV coil wires secured by
clamps and cable ties.
(4) Rotate the LEV coils slightly and then
remove them in the upward direction.
(5) Install the new LEV coils in the positions
indicated in the figure and then connect
the connectors to the control board.
Take care not to mix up the three LEV
coils when installing them.
Rotate the LEV coils until you hear them
snap into place to attach them properly.
4. Valve motor and valve body
Operation procedures
(1) Perform the operation to drain the water
from the system if necessary in accor-
dance with the following.
When replacing only valve motor:
Draining water from system not neces-
sary
When replacing valve body: Draining
water from system necessary
(2) Remove the four fixing screws from the
service panel (right) and then remove
the service panel (right).
(3) Remove the two fixing screws from the
service panel (top left) and then remove
the service panel (top left).
(4) Disconnect the corresponding valve
motor connector from the control board.
(5) Remove the four control box fixing
screws and then remove the control
box.
Disconnect each wire connector and
then completely remove the control box.
(6) Perform the removal operation in accor-
dance with the following.
When replacing only valve motor: Re-
move the two fixing screw and then re-
move the valve motor.
When replacing valve body: Remove
the motor as described above and then
pull out the valve body in the direction of
the arrow indicated in the figure.
HWE1708A
Service panel (top left)
Valve body
- 206 -
Illustrations
LEV3
LEV1
LEV2
Illustrations
Valve motor
Service panel (right)
Control box
Operation
location
In ceiling
space
Operation
location
In ceiling
space
GB