Mitsubishi Electric CMB-WM108V-AA Service Handbook page 225

[ VIII Troubleshooting ]
16. Plate heat exchanger (heating-main side)
Operation procedures
(1) Perform the work as described in (1) to
(8) of 5.
(2) Remove the clips connecting the pipes
in the two places shown in the figure and
then remove the branch pipes in the up-
ward direction.
( and in the figure)
(3) Remove the one flare nut of the air
purge valve. ( in the figure)
(4) 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 (heating-main side)
service part
17. Pressure sensor
Operation procedures
(1) Perform the work as described in (1) to
(8) of 5.
(2) Remove the clips connecting the pipes
in the two places shown in the figure and
then remove the branch pipes in the up-
ward direction.
( and in the figure)
(3) Debraze the brazed portion of the pres-
sure sensor indicated in the figure and
then replace the pressure sensor with a
service part.
( in the figure)
Protect the heat insulation material
around the pressure sensor so as not to
burn it with the flame of the torch.
HWE1708A
Illustrations
Illustrations
- 216 -
Operation
location
Below
Branch pipes
ceiling
Operation
location
Below
ceiling
GB