TM 9-4120-407-14
c. Operation in Vent Mode.
(1) Adjust the evaporator air discharge and return grilles and the fresh air damper as desired.
NOTE
If the fresh air damper is to be opened, the fabric cover must be
rolled up and secured.
Figure 2-8. Fresh Air Damper Adjustment
(2) Turn the MODE selector rotary switch to VENT position.
NOTE
The motor controller will take approximately two seconds to bring
the evaporator fan motor from start to full power.
Figure 2-9. VENT Control Setting
2-21
