TM 9-4120-388-14
2-7. GENERAL OPERATING PROCEDURES - Continued.
(3) During hot weather
(a) Adjust shades, blinds, etc. (when applicable) to block out sunlight during day.
(b) Adjust the conditioned air outlet dampers slightly upward.
OPERATION IN VENTILATE MODE.
Turn mode selector switch to VENTILATE.
a.
b. Adjust fresh air damper to desired setting. The unit can be operated in the VENTILATE mode with the fresh air
damper (door) closed, open, or partially open.
NOTE
The fabric cover must be rolled up and secured if fresh air damper (door) is to be opened.
When using fresh air for ventilation, a window, door, or vent should be opened. If the room
or enclosure is tightly closed, an overpressure will build up and decrease the volume of
fresh air drawn in.
