Mitsubishi Electric PURY-M200YNW-A1 Service Handbook page 349

[8-13 Parts Replacement Instructions (Outdoor Unit) ]
2. XL-module (four-way valve (21S4a, 21S4b, and 21S4c))
Explained below is the procedure for replacing four-way valve (21S4a) (on the left when seen from the front of the unit),
four-way valve (21S4b) (in the middle when seen from the front of the unit), and four-way valve (21S4c) (on the right when
seen from the front of the unit). (See Figure 1.)
Figure 1
(1) Remove the pipe covers, wirings, and sheet metals. (See Figure 2.)
Figure 2
(2) Remove the coils from four-way valves (21S4a, 21A4b, and 21S4c), solenoid valve (SV2), coil cover, and wiring. (See
Figure 3.)
Figure 3
(3) Remove the pipe cover adjacent to four-way valves. (See Figure 4.)
Figure 4
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- chapter 8
Four-way valve
Four-way valve
coil A
coil B
Two pipe covers
*Save the pipe
covers for later use.
Remove the seven pipe covers adjacent to the four-way valves.
*Save the pipe covers for later use.
Four-way valve
coil C
Wiring
Sheet metal
Solenoid valve coils (SV2) and coil cover
BS_08_L