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Tech Challenge — November 2021


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Tech Challenge

commercial rooftop utilizing R-410A with a TXV feed device has a customer complaint of insufficient cooling. The symptoms confirm inadequate cooling and the compressor appears to be short cycling. What are the “possible causes” (Note: There is only one problem intended) with the following measured/calculated conditions on this field service check sheet? 

Check back in December for the answer to this issue’s Tech Challenge.


Posted In: ACCA Now, Tech Challenge

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