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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 an upright position at a room temperature of 65°F minimum,
allowing the system to warm-up particularly in winter months.
2. Refer to the nameplate 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 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.
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.
