Installation manual

[ IX Troubleshooting ]
- 341 -
HWE10050 GB
②⑥ Removing or installing
solenoid valve block
Solenoid
valve block
Supporting plate for
solenoid valve block
Screw (M5)
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
(ø12.7
[1/2"])
After cutting pipe,
remove the pipe
from the brazed A.
④⑦ B
(ø19.05 [3/4"])
④⑦ C
(ø15.88
[5/8"])
① Coil cover, Solenoid valve coil
(SV4a,SV4b,SV4c,SV4d)
④⑦ D
(ø15.88
[5/8"])
Heat exchanger
③⑦ A
(ø12.7 [1/2"])
⑦ Brazing connecting pipe (φ9.52 [3/8"])
Brazing
(heat exchanger
header side)
Brazing
(Solenoid valve
block side)
Service parts set
supplied connecting
pipe (ø9.52 [3/8"])
④⑦ Brazing or debrazing pipes
⑤ Removing Solenoid
valve block ASSY
E
(ø28.6
[1-1/8"])
F
(ø9.52
[3/8"])
G
(ø15.88 [5/8"])
* This figure does not show heat exchanger.
E
B
F
C
D
H
G
Removed Solenoid
valve block ASSY
H
(ø9.52
[3/8"])
* Refer to the next page for Check valve (CV4a, CV6a, CV8a, CV9a, CV10a) replacement procedures.
1) Remove the upper
and lower service
panels (Panel FU
and FB).
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.