Compressor Replacement Procedure - Mitsubishi Electric PUHY-P250YNW-A Service Handbook

[8-12 Parts Replacement Instructions ]
8-12-4

Compressor Replacement Procedure

Explained below are the procedures for replacing the compressor. Secure sufficient work space before starting replacement
work. (See 8-12-1 Ensuring maintenance space (Preparation for the Maintenance of Refrigerant Circuit Parts).)
(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 cover by unscrewing the four screws. (See Figure 2.)
(3) Cut the two cable ties holding TH4 and TH15, and remove the wiring from the rubber bush on the left compressor cover.
(See Figure 3.)
(4) Remove the right and left compressor covers by unscrewing the four screws. (See Figure 4.)
Compressor cover (top)
Figure 1
Figure 4
(5) Remove the thermal insulation. (See Figure 5.)
(6) Remove the duct by unscrewing the two screws. (See Figure 6. Applicable to the S-module only)
(7) Remove the pipe cover and the damper, and cut the suction pipe where indicated in Figure 7.
(8) Remove the compressor discharge pipe by cutting the pipe where indicated in Figure 8 or by removing the braze.
Discharge pipe (Figure 8)
Suction pipe
(Figure 7)
Thermal insulation
Compressor
Figure 5
Cut the suction pipe
here.
BS_08_C
Compressor cover (front)
Figure 2
Duct (Figure 6)
Pipe cover and cable tie
S-module (ID: 43 mm; Length: 260 mm)
Damper and cable tie
S-module (Length: 180 mm and 250 mm)
Figure 7
TH4
Rubber bush
TH15
Compressor cover (left)
Figure 3
Figure 6
Cut the compressor
discharge pipe here.
Figure 8
Cable tie
57
chapter 8 -