Mitsubishi Electric PURY-P72 Service Handbook page 347

[ IX Troubleshooting ]
1) Remove the upper and
lower service panels
(Panel FU and FB).
B C
(φ15.88 [5/8"]) (φ19.05 [3/8"])
Heat exchanger
A (φ12.7 [1/2"])
* Refer to the next page for Check valve (CV4a, CV6a, CV8a, CV9a, CV10a) replacement procedures.
HWE09130
Coil cover,
D (φ28.6 [1-1/8"]), E (φ9.52 [3/8"]), F (φ9.52 [3/8"])
Solenoid valve coil
(SV4a,SV4b,SV4d)
* This figure does not show heat exchanger.
Supporting plate for
solenoid valve block
Brazing
(heat exchanger
header side)
- 338 -
2) Remove the control box.
3) Remove the cable that is fixed to
the Frame ASSY MU (upper) and
MB (lower), and remove the Frame
ASSY MU and MB.
Brazing or debrazing pipes
G (φ15.88 [5/8"])
Removing or installing
Cutting pipes
solenoid valve block
Cutting pipes positions
Solenoid valve block
Cut the pipe at 40mm
ahead from the Bending
R end with a pipe cutter.
Bending
Screw
R end
(M5)
Brazing connecting pipe (φ9.52 [3/8"])
Removing
Solenoid valve
block ASSY
C
D
E
B
F
G
Removed Solenoid
valve block ASSY
40
A
(φ12.7
[1/2"])
After cutting pipe,
remove the pipe
from the brazed A.
Brazing
(Solenoid valve
block side)
Service patrs set
supplied connecting
pipe (φ9.52 [3/8"])
GB