Replacement Procedure For The Check Valve Block Assembly - Mitsubishi Electric PURY-M200YNW-A1 Service Handbook

[8-13 Parts Replacement Instructions (Outdoor Unit) ]
8-13-4

Replacement Procedure for the Check Valve Block Assembly

1. S, L-module
Explained below is the procedure for replacing the check valve block assembly.
(1) Remove the top compressor cover by unscrewing the three screws. (See Figure 1.)
Remove the compressor cover by unhooking the hooks on the back.
(2) Remove the front compressor covers by unscrewing the four screws. (See Figure 2.)
(3) Cut the two tie bands holding TH4 and TH15, and remove the wiring from the rubber bush on the left compressor cover.
(See Figure 3.)
(4) Remove the left compressor cover by unscrewing the two screws. (See Figure 4.)
(5) Remove the saddle and the rubber spacers on the compressor by unscrewing the screw. (See Figure 5.)
Compressor cover (top)
Figure 1
Figure 4
(6) Remove the coils, coil covers, pipe covers, and adjacent wirings of the four-way valves, solenoid valves, and LEVs. (See
Figures 6-1 through 6-3.)
Figure 6-1
BS_08_L
Compressor
cover (left)
Compressor cover (front)
Figure 2
Figure 5
Four-way valve coil (21S4a)
LEV coil
(LEV2a)
LEV coil
(LEV2b)
LEV coil
(LEV9)
Figure 6-2 (Four-way valve, solenoid valve, LEV coil, coil cover)
Figure 6-3 (adjacent pipe covers)
Rubber bush
TH15
Figure 3
Rubber spacers
(2 pieces)
Saddle
Screw to be
removed
Four-way valve coil (21S4b)
Remove the adjacent pipe
covers.
*Save the pipe covers for
later use.
TH4
Cable tie
Solenoid
valve coil
(SV2)
LEV coil
(LEV2d)
85
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