Mitsubishi Electric PUHY-HP72 Service Handbook page 264

[8-12 Parts Replacement Instructions ]
(4) Unscrew the screw holding the transformer box, and move the box as shown in the figure. (3 screws as shown in Figure 3.)
(5) Remove the transformer box. (Figure 4)
Transformer box
(4) Lift the transformer box to the position as shown in the figure, move the box to the designated position, and screw it down.
(3 screw as shown in Figure 5.)
*Use caution not to damage the heat exchanger fins or pipes and wires in the adjacent areas when replacing the transformer
box.
HWE18240_GB
Figure 3
Figure 4
Figure 5
Screw down.
(3 locations)
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