TM 9-4120-402-14
2-8. OPERATION IN VENTILATE MODE (NO HEATING OR COOLING NEEDED).- continued
c. Adjust grilles to suit.
Figure 2-7. Grille Adjustment
NOTE
To pull in maximum of fresh (outside) air, close conditioned air intake grille.
2-9. OPERATION IN HEAT MODE
a. Turn MODE selector rotary switch to HEAT position.
b. Turn TEMPERATURE control potentiometer fully to the WARM position.
Figure 2-8. HEAT Control Setting
2-15