Mitsubishi Electric PURY-WP200 Service Manual page 243

[ IX Troubleshooting ]
1) Remove the upper
and lower service
panels (Panel FU
and FB).
B
(ø19.05 [3/4"])
C
(ø15.88
[5/8"])
D
(ø15.88
[5/8"])
Heat exchanger
* Refer to the next page for Check valve (CV4a, CV6a, CV8a, CV9a, CV10a) replacement procedures.
HWE1113B
Coil cover, Solenoid valve coil
(SV4a,SV4b,SV4c,SV4d)
A
(ø12.7 [1/2"])
Brazing or debrazing pipes
E
(ø28.6
[1-1/8"])
G
(ø15.88 [5/8"])
* This figure does not show heat exchanger.
Removing or installing
solenoid valve block
Solenoid
valve block
Screw (M5)
Supporting plate for
solenoid valve block
Brazing connecting pipe (φ9.52 [3/8"])
Brazing
(heat exchanger
header side)
- 234 -
2) Remove the control box
and the partition plate.
3) Remove the cable that is
fixed to the Frame ASSY
MU (upper) and MB (lower),
and remove the Frame
ASSY MU and MB.
Removing Solenoid
valve block ASSY
F
(ø9.52
[3/8"])
E
F
H
G
(ø9.52
Removed Solenoid
[3/8"])
valve block ASSY
Cutting pipes
Cutting pipes positions
Cut the pipe at 60mm ahead from
the Bending R end with a pipe
cutter.
Bending R
After cutting pipe,
remove the pipe
from the brazed A.
Brazing
(Solenoid valve
block side)
Service parts set
supplied connecting
pipe (ø9.52 [3/8"])
B
C
D
H
60
A
(ø12.7
[1/2"])
GB