The Low Temperature Thermostat has a test start relay. When the air conditioner is turned on it will run
constantly for the first 15 minutes regardless of external temperatures. Afterwards, if the entering evaporator
air temperature is lower than the thermostat set point, the compressor and condenser blower will stop, and
the thermostat will begin to control the air conditioner.
VI. Pre-Installation Testing
Before mounting the air conditioner to the enclosure, test for proper operation. This will verify the shipping
integrity of the system. Please follow the steps below prior to installation.
CAUTION
1
. The unit must sit in an upright position at a minimum room temperature of 65°F to allow the system
to warm-up. This is particularly important during winter months.
2. Refer to the identification label for proper electrical voltage and current requirements. Connect the
power cord to a properly grounded and fused electrical supply, leaving electrical power to the unit
turned off.
3. Note the factory thermostat setting which is 75
o
F.
4. Turn the electrical power on.
5. Verify that the evaporator blower or fan is running.
6. Verify that the condenser blower or fan is running.
7. Operate the air conditioner for approximately ten (10) minutes. During this period no unusual noise
or vibration should be evident. Both the evaporator and condenser fans or blowers should be
delivering air through their respective discharge ports. The cool air discharged should be less than
70°F when the room temperature is between 70°F and 80°F.
8. Turn off the electrical power and disconnect the air conditioner from the power source.
9. If any cover plug was removed to adjust the unit, be sure to replace it in order to maintain the integrity
of the closed-loop airflow system.
NOTE:
Before shipment all Kooltronic Air Conditioners are subjected to a performance test.
6
The air conditioner must be standing in its proper mounting position for a minimum of
five (5) minutes prior to testing. Failure to follow this procedure will cause permanent
damage to the compressor.
