Mitsubishi Electric CMB-WM108V-AA Service Handbook page 224

[ VIII Troubleshooting ]
14. 4-way valve body (21S4)
Operation procedures
(1) 1.Perform the operation as described in
(1) to (8) of 5.
(2) Debraze the three places indicated in
the figure and then replace the 4-way
valve with a service part. When brazing,
protect the heat insulation material to
prevent it from burning.
4- way valve service part
15. Plate heat exchanger (cooling-main side)
Operation procedures
(1) Perform the work as described in (1) to
(8) of 5.
(2) Remove the two flare nuts of the water
purge valve and air purge valve.
( and in the figure)
(3) Debraze the three places indicated in
the figure and then replace the plate
heat exchanger with a service part.
( , , and in the figure)
Plate heat exchanger
(cooling-main side) service part
HWE1708A
Illustrations
Illustrations
- 215 -
Operation
location
Below
ceiling
Operation
location
Below
ceiling
GB