Mitsubishi Electric PURY-P72TYJMU-A Service Handbook page 351

[ IX Troubleshooting ]
1) Remove the upper
and lower service
panels (Panel FU
and FB).
④⑦ B
(φ19.05 [3/4"])
④⑦ C
(φ15.88
[5/8"])
④⑦ D
(φ15.88
[5/8"])
Heat exchanger
(φ12.7 [1/2"])
* Refer to the next page for Check valve (CV4a, CV6a, CV8a, CV9a, CV10a) replacement procedures.
HWE0913A
① Coil cover, Solenoid valve coil
(SV4a,SV4b,SV4c,SV4d)
③⑦ A
2) Remove the control box
3) Remove the cable that is
④⑦ Brazing or debrazing pipes
E
(φ28.6
[1-1/8"])
G
(φ15.88 [5/8"])
* This figure does not show heat exchanger.
②⑥ Removing or installing
solenoid valve block
Solenoid
valve block
Screw (M5)
Supporting plate for
solenoid valve block
⑦ Brazing connecting pipe (φ9.52 [3/8"])
Brazing
(heat exchanger
header side)
- 342 -
and the partition plate.
fixed to the Frame ASSY
MU (upper) and MB (lower),
and remove the Frame
ASSY MU and MB.
⑤ Removing Solenoid
valve block ASSY
F
(φ9.52 B
[3/8"])
E
F
C
D
H
H
G
(φ9.52
Removed Solenoid
[3/8"])
valve block ASSY
③ Cutting pipes
Cutting pipes positions
Cut the pipe at 60mm ahead from
the Bending R end with a pipe
cutter.
60
Bending R
A
After cutting pipe,
(φ12.7
remove the pipe
[1/2"])
from the brazed A.
Brazing
(Solenoid valve
block side)
Service parts set
supplied connecting
pipe (φ9.52 [3/8"])
GB