Mitsubishi Electric HP120TNU-A Service Handbook page 335

[8-13 Parts Replacement Instructions ]
(25) After removing the heat exchangers, dispose of the front and the rear heat exchanger supports. (See Figures 22 and 23.)
The front and the rear heat exchanger supports do not need to be installed. (The front and the rear heat exchanger
supports are for suppressing vibration during transportation.)
Figure 22
Front heat exchanger support
(26) Re-place the front and the rear heat exchangers in the reverse order as they were removed.
Re-place the components that were removed as they were.
Re-place each unit wiring according to the wiring color and identification label (attached to the wiring protective tube)
shown in the table below.
Rear frame
BL
L
Left frame
94
- chapter 8
Front heat exchanger
Rear heat exchanger support
Unscrew the screw.
BR
Figure 24
Center pillar
Figure 23
R
Right frame
L
Wiring color Yellow Blue
Identification
L-L L-R
label
Unscrew the screws.
R BL BR
Red White
L-BL L-BR
HWE18220_GB