Mitsubishi Electric PURY-M200YNW-A1 Service Handbook page 351

[8-13 Parts Replacement Instructions (Outdoor Unit) ]
(7A) Remove the braze from the three areas below four-way valve (21S4a) as shown in Figure 8.
Figure 8
(8A) Mount a new four-way valve (21S4a).
Replacement procedure for the four-way valve (21S4b)
(9B) Follow the steps (6A) through (7A).
(10B) Mount a new four-way valve (21S4b).
Replacement procedure for the four-way valve (21S4c)
(11C) Remove the braze from the area above four-way valve (21S4c) as shown in Figure 9.
Figure 9
(12C) Remove the braze from the two areas below four-way valve (21S4c) as shown in Figure 10.
Figure 10
(13C) Mount a new four-way valve (21S4c). Figure 11 shows how to position a new four-way valve.
Four-way valve
coil (21S4a)
Four-way valve
Figure 11
coil (21S4b)
84
- chapter 8
20°
When seen from above, four-way valve (21S4c) is tilted by 20°.
Four-way valve Four-way valve (21S4c) is tilted to the opposite direction
compared to the other four-way valves.
coil (21S4c)
A cap for sealing the refrigerant
pipe is included with the replace-
ment kit that contains four-way
valve (21S4c). Use the parts
included with the four-way valve.
When installing four-way
valve (21S4c), first braze
the pipe outside the unit
and then install it to the
unit.
BS_08_L