This dcoument describes the issues that can cause an ACOA5XX cooling failure.
All Serial Numbers.
Supply Air Temperature> 90 F and Cooling Output < 4 kW.
Supply Air Temperature> 90 F and Cooling Output < 4 kW
OA will shut down
OA will restart after 5 Min
If conditions still exists after 60 seconds OA will shut down.
tf = 300oF* sec/ tsup - 90oF
Tsup is the average supply air temperature in oF