Mitsubishi Electric HP120TNU-A Service Handbook page 330

[8-13 Parts Replacement Instructions ]
(9) Remove the fin guards and wiring covers from the right, left, and rear of the unit casing. (12 screws as shown in Figure 7.)
Right fin guard (sold separately)
*
Right wiring cover
Right wiring cover
Right panel heater
Figure 7 Right
* If fin guards are installed, they are screwed. In the case, the number of unscrewing screw is 24.
(10) Disconnect the connectors of the panel heater wiring. Bundle the excessive disconnected panel heater wiring with
adhesive tape or other materials. (4 locations as shown in Figure 8.)
Unit wiring
Panel heater wiring
Right panel heater
Figure 8 Right
Before removing the protective tube
HWE18220_GB
Rear fin guard (sold separately)
Rear wiring cover
Rear wiring cover
Rear panel heater
Figure 7 Rear
Unit wiring
Figure 8 Rear
Unit wiring
Cable tie
Protective tube
Panel heater wiring
Left fin guard (sold separately)
Left wiring cover
*
Left wiring cover
Rear wiring cover
Left panel heater
Figure 7 Left
Unit wiring
Unit wiring
Panel heater wiring
Panel heater wiring
Rear panel heater
Left panel heater
Unit wiring
Connector
Panel heater wiring
After removing the protective tube
Left wiring cover
*
Figure 8 Left
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chapter 8 -