Mitsubishi Electric PURY-M200YNW-A1 Service Handbook page 356

[8-13 Parts Replacement Instructions (Outdoor Unit) ]
(14) Cut the pipe below four-way valves (21S4a and 21S4b) with a pipe cutter as shown in the figure.
Remove the braze at the areas circled in the figure to remove 21S4a and 21S4b assemblies.
Four-way valve (21S4a)
Remove the braze here.
(Applicable only to
gas-liquid separator A)
Remove the braze here.
Gas-liquid separator A (2 areas to be cut. 5 areas to
remove braze from. See Figure 14-1.)
Remove the
braze here.
Four-way valve
(21S4a)
LEV2d
Remove the braze here.
Cut the pipe here.
Gas-liquid separator A
Four-way valve (21S4a)
LEV2d
Four-way valve (21S4a and
21S4b) assemblies
Figure 14-1
BS_08_L
Figure 14
Four-way valve
(21S4b)
Cut the pipe here.
Check valve
block
Remove the braze here.
Four-way valve (21S4b)
The replacement parts for this part is included
with the replacement kit that contains check
valve block assembly. Use the pipe included
with the check valve. (Applicable to both
gas-liquid separators A and B)
Remove the braze here.
Four-way valve (21S4b)
LEV2b
Cut the pipe here.
Remove the braze here.
(Applicable only to
gas-liquid separator B)
Cut the pipe here.
Gas-liquid separator B (2 areas to be cut. 5 areas to
remove braze from. See Figure 14-2.)
Remove the braze here.
Four-way valve
(21S4a)
LEV2d
Remove the braze here.
Cut the pipe here.
Four-way valve (21S4a)
LEV2d
Four-way valve (21S4a and
21S4b) assemblies
Four-way valve (21S4b)
Cut the pipe
here.
Gas-liquid
separator B
Check valve block
Four-way valve
(21S4b)
Figure 14-2
chapter 8 -
89