Operational Check

The purpose of the operational check is to confirm that the system operates properly.

CONDITIONS:

^ Engine running at normal operating temperature.





PROCEDURE:
1. Check blower
a. Slide fan control lever to 1-speed.
Blower should operate on 1-speed.
b. Slide fan control lever to 2-speed and continue checking blower speed until all speeds are checked.
c. Leave blower on 4-speed.





2. Check discharge air





3. Check recirculation





4. Check temperature decrease
a. Slide temperature control lever to full cold.
b. Check for cold air at discharge air outlets.





5. Check temperature increase
a. Slide temperature control lever to full hot.
b. Check for hot air at discharge air outlets.





6. Check A/C switch
Move fan control lever to the desired position (1 to 4) and press air conditioner switch to turn air conditioner ON.
Indicator light will come on when air conditioner is ON.