Mitsubishi Electric HP120TNU-A Service Handbook page 331

R410a
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[8-13 Parts Replacement Instructions ]
(11) Remove the fan guard by unscrewing the 12 screws. (See Figure 9.)
(12) Insert a spacer between the control box and the heat exchanger.
(13) Remove the cable tie that is holding the motor ASSY and the unit wiring.
Remove the motor ASSY by unscrewing the 16 screws, using caution not to disconnect the motor wiring or not to damage
the fan. (See Figure 10.)
Fan guard
Figure 9
(14) Remove the unit wiring from the left frame (See Figure 11).
Bundle all excess unit wirings including those that have been removed so that they do not interfere with the replacement
of the heat exchanger.
(15) Remove the front pillar by unscrewing the 7 screws. (See Figure 12.)
(16) Disconnect the TH7 sensor holder from the front pillar. (See Figure 12 Rear.)
(17) Remove the TH7 wiring from the heat exchanger by cutting the cable tie. (See Figure 13.)
Left frame
Front pillar
Figure 12
90
- chapter 8
Front heat
exchanger
Spacer *
Control box
*Use the supplied spacers.
Use the spacers 60 (D) x 250 (W) x 60 (H) when replacing the heat
exchangers for the maintenance of the accumulator and the pipes.
Figure 11
Front heat
exchanger
Connector
Front pillar
TH7
Rear
Spacer *
Motor ASSY
Fan
Figure 10
Left frame
Remove the TH7 wiring from
the front heat exchanger.
Figure 13
Motor ASSY
Cable tie
Protective wire rubber
Unit wiring
TH7
Spacer *
Cable tie
HWE18220_GB

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