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8. Operate the air conditioner for approximately ten minutes. During this period no unusual noise or
vibration should be evident. Both the evaporator and condenser blowers should be delivering air
through their discharge openings. The cool air discharged should be from 15°F to 20°F less than the
ambient temperature. Do not run test more than 15 minutes. After 15 minutes the thermostat starts
controlling the air conditioner and could shut off the compressor if return air temperature is lower
than 70°F.
9. Turn off cooling input signal and send heating input signal.
10. Verify that the damper is in closed (vertical) position and evaporator blower is running. Discharge
evaporator air temperature should be about 12°F higher than the ambient temperature.
11. Turn off heating input signal and send input surge signal.
12. Verify that the damper is in open (horizontal) position and evaporator blower is running.
13. Turn off purge input signal and send smoke alarm signal.
14. Verify that the damper is in closed (vertical) position and evaporator does not run.
15. Turn unit off.
16. Turn off electrical power.
17. Set the damper mechanical thermostat to maximum temperature (turn dial to CW).
18. Turn the electrical power on.
19. Send the cooling input signal.
20. Verify that the damper is in open (horizontal) position and evaporator blower is running.
21. Turn off electrical power.
22. Set the damper thermostat to 55°F.
23. Replace two electrical box covers.
24. Replace rear panel.
NOTE:
Before shipment all Kooltronic Air Conditioners are subjected to a performance test.
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