Mitsubishi Electric PUHY-M200YNW-A1 Service Handbook page 336

[8-13 Parts Replacement Instructions ]
(11A) Remove the pipe below four-way valve (21S4a) and on the front by removing the braze at the four areas shown in
Figure 11.
Remove the rubber spacer.
Figure 11
(12A) Cut the pipe below four-way valve (21S4a) and in the middle with a pipe cutter as shown in the figure.
After cutting the pipe where indicated in the figure, remove the braze at the three areas shown in Figure 12.
Figure 12
(13A) Remove the pipe below four-way valve (21S4a) and on the back by removing the braze at the two areas on the bottom
of the pipe shown in Figure 13. Then, remove the braze at the areas on the top of the pipe.
Figure 13
BS_08_E
Cut the pipe here.
After being removed, leave the pipes at
the bottom inside the unit.
(Once removed from the unit, it will be
difficult to re-place the pipes.)
Cut the pipe here.
The replacement parts for this part is
included with the replacement kit that
contains four-way valves (21S4a and
21S4b).
Replace the old cap with the one
included with the four-way valve.
The replacement parts for this part is included
with the replacement kit that contains
four-way valve (21S4a).
Replace the old cap with the one included
with the four-way valve.
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chapter 8 -