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TM 5-4120-377-14
c. When room or enclosure temperature reaches the desired level, slowly turn the TEMPerature control
thermostat knob toward DECREASE. Make small adjustments until desired temperature is maintained
automatically.
N O T E
Should unit continue to produce too much heat with TEMPerature control thermostat
knob adjusted toward the decrease setting, switch to LO HEAT.
d. Adjust fresh air damper (door) to desired setting. It is normally better to keep the fresh air damper slightly
open. Damper should be closed during very cold weather and during fast warmup periods.
Figure 2-12. Fresh Air Damper (Door) Adjustment
e. Adjust louvers to suit. Since warm air tends to rise it is normally better to adjust the conditioned air outlet
louvers slightly downward. The conditioned air inlet louvers should be full open.
CONDITIONED AIR
OUTLET LOUVER
EACH BLADE CAN BE
ADJUSTED
INDIVIDUALLY BY HAND
CONDITIONED AIR INLET
LOUVER BLADES
ADJUSTED AT LEVER
TS4120-377-14/2-13
Figure 2-13. Louver Adjustment
2-17
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