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. Allow the unit to sit in a upright position at a room temperature of 65°F minimum, allowing the
system to warm-up particularly in winter months.
2. Refer to the identification label for proper electrical voltage and current requirements. Then
connect the power cord to a properly grounded and fused electrical supply. Leave the electrical
power off.
3. Note the factory thermostat setting which is typically 75 to 80°F.
4. Adjust thermostat to its maximum setting.
5. If your unit is equipped with an on-off switch, move it to the on position.
6. Turn electrical power on.
7. Verify that the evaporator blower or fan is running.
8. Adjust the thermostat to its minimum setting. The compressor should start. On units equipped
with a short cycle protector, the compressor will have a delayed start of 6 minutes from the time
power is applied to the unit.
9. Verify that the condenser blower or fan is running. Note, on units equipped with a low ambient
kit, the start of the condenser fan or blower will be delayed until the system pressures rise.
10. 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 should be discharged
should be less than 70°F when the room temperature is between 70 and 80°F.
11. On units equipped with heaters, adjust both the cooling and heating thermostats to their
maximum settings. Verify that the compressor and condenser fan or blower has stopped. Verify
elevated discharge air temperature from the evaporator air discharge.
12. If your unit is equipped with an on-off switch, leave it in the on position. Return the cooling
thermostat to its original setting. If unit is equipped with a heater, return the heating thermostat
to its original position.
13. Turn off the electrical power source, and disconnect the air conditioner from the power source.
14. If any cover plug is removed to adjust the unit, make certain to put back in place to maintain the
integrity of the closed-loop airflow system.
NOTE:
Before shipment all Kooltronic, Inc. 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.
