Post-Start Inspection

Thermostat: Adjust the thermostat setting to above and below the compartment temperature to check thermostat operation (see Operating Modes).

Pre-cooling: With the thermostat set at the desired temperature, run the unit for half-an-hour to one hour (or longer if possible) before loading the truck. Pre-cooling eliminates residual heat and acts as a good test of the refrigeration system.

Defrost: When the unit has finished pre-cooling the truck interior - the evaporator temperature should have dropped below 2ºC (35.6ºF) - initiate a defrost cycle with the manual defrost switch. The defrost cycle should stop automatically.