Figure 2-9. Operation in Low Heat -Mode.

TM 5-4120-359-14

Operation in the LOW HEAT mode.

(1) Turn MODE SELECTOR SWITCH to LOW HEAT. After 5 seconds, air flow can be felt.

NOTE

In the LOW HEAT mode the condenser (rear) section blower does not operate.

Figure 2-9. Operation in Low Heat -Mode.

(2) Turn TEMPERATURE CONTROL knob to WARMER. After 2 minutes, air from conditioned air outlets will feel

warmer than the ambient air.

Figure 2-10. Adjustment - Warmer

(3) When the room or shelter air temperature rises to the desired level, slowly turn the TEMPERATURE

CONTROL knob toward COOLER. Heating will stop when you reach the approximate room temperature.

Figure 2-11. Adjustment - Cooler

(4) Further adjustment can be made by turning the TEMPERATURE CONTROL knob slightly toward the

WARMER or COOLER setting until a constant desired room or shelter temperature is maintained.

2-8