TM 9-4120-398-14
Mode
Temperature
Fresh
Mode
Selector
Control
Air
Switch
Thermostat
Damper
Ventilate with
VENT
Does not operate
Closed
100% recirculated
air
Ventilate with
VENT
Does not operate
Open
make-up (fresh air)
Heating with 100%
AUTO
Desired temperature
Closed
recirculated air
AUTO
Desired temperature
Open
up (fresh air)
cooling with 100%
AUTO
Desired temperature
Closed
recirculated air
Cooling with make-
AUTO
Desired temperature
Open
up (fresh air)
off
OFF-RESET
Does not operate
Open or
Closed
OPERATION IN VENTILATE MODE (NO HEATING OR COOLING NEEDED)
a. Turn mode selector switch to VENT.
Do not operate the air conditioner in the AUTO mode for cooling when the outside temperature is below
50F. For cooling, use the VENT mode and admit makeup air as required.