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ACOA5XX cooling failure

 

                                                                                                                                                           

Issue:
ACOA5XX cooling failure 

Product line:  
ACOA5XX 

Environment: 
All Serial Numbers  

Cause:  
Supply Air Temperature> 90 F and Cooling Output < 4 kW 

Resolution:    

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

Where 

Tsup is the average supply air temperature in oF

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