Removal Instructions For The Control Box - Mitsubishi Electric PUHY-P250YNW-A Service Handbook

[8-12 Parts Replacement Instructions ]
8-12-5

Removal Instructions for the Control Box

1. S module (INV box)
[Removing the left outside panel]
Unscrew the four screws indicated
with arrows in Figure 1 to remove the
left outside panel.
[Figure 1]
[Removing the ground wire]
Remove the two ground wires (screwed on)
indicated by Arrow in Figure 3-a, and
A
unsaddle them from the saddle indicated by
Arrow .
B
[Removing the wiring]
Remove the following connectors and the
screw terminals.
(See Figures 3-b and 3-c.)
CN1, CN3, and CN5 on the Noise Filter
board
CNINV on the FAN INV board
CN-P, CN-N, FT-P1, FT-P2, SC-P1, SC-PL,
SC-L1, SC-L2, and SC-L3 on the INV35
board
[Removing the terminal board, DCL,
and top panel (Noise Filter board)]
Unscrew the three screws indicated by
the arrows in Figure 4-a, and pull the
DCL, the right side panel, and the top
panel forward toward the front of the
unit. Then, lift the back end of the top
panel, and then pull the terminal board,
the DCL, and the top panel (Noise
Filter board) forward toward the front of
the unit all together to remove them as
one unit. (Figure 4-b.)
[Figure 4-a]
[Removing the duct]
Unscrew the two screws indicated with arrows in
Figure 5-a, and pull up the duct to remove it.
(Figure 5-b shows the unit after the duct was
removed.)
[Figure 5]
BS_08_C
B
A
A
[Figure 3-a]
[Figure 5-b]
[Figure 5-a]
[Figure 2-a]
[Figure 2]
CN1
CN3
CN5
CNINV
SC-P1
SC-PL
[Figure 3-b]
[Figure 4-b]
[Removing the left inside panel]
Unclamp the three clamps shown in
Figure 2-a, and unscrew the screw on
the left of the terminal board shown in
2-b to remove the left inside panel.
[Figure 2-b]
FT-P1
FT-P2
CN-P
CN-N
SC-L1
SC-L2
SC-L3
[Figure 3-c]
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chapter 8 -