Mitsubishi Electric PURY-M200YNW-A1 Service Handbook page 440

[8-15 Main-HBC Maintenance Instructions ]
Operation procedures
5. The elbow that was removed and the
pipe that was cut in step 17
See the figure at right for the installa-
tion angle of the elbow.
The swing angle against the T-joint on
the plate heat exchanger: 0°
Notes on the cut out pipe
«When replacing the Cooling-main
side plate heat exchanger with a new
one»
No modification needs to be made to
the new one.
«When replacing only the plate heat
exchanger on the Heating-main side,
and continue using the one on the
Cooling-main side»
Remove the section of the pipe indi-
cated in the figure at right from the
plate heat exchanger on the Cooling-
main side, and replace it with the one
that is supplied with the new Heating-
main plate heat exchanger.
6. The pipe that was removed in step 9
Braze the pipe so that the straight sec-
tion of the pipe will be parallel to the
plate heat exchanger as shown in the
figure at right.
7. Four-way valve ASSY that was re-
moved in step 8
Refer to the figure at right when re-
brazing the pipe section that was re-
moved from the four-way valve ASSY.
Refer to step 10 in section [8-15-13 4-
way Valve Body (21S4) Replacement
Procedure (HBC)] when reinstalling the
four-way ASSY, which requires a re-
placement of the pipe.
BS_08_L
Illustrations
56.3°
Remove the elbow.
Pipe section to be replaced
Section of the
pipe on the
four-way valve
ASSY to be
cut out
Four-way valve ASSY
Cut the pipe here.
Parallel to the plate heat exchanger
Replaced pipe
8°
Operation
location
Installation
location
173
chapter 8 -