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ACOA5XX cooling failure

Issue:
This dcoument describes the issues that can cause an 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

APC Canada

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