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Partially Continuous Circuit Fault

My job responsibility is to maintain/troubleshoot the ammonia refrigeration system. The first shift production supervisor called over the radio for the refrigeration department to evaluate a warm room temperature. The production room was designed to be around 45-degrees Fahrenheit for this process and the room temp thermometer is reading 55-degrees Fahrenheit. This occurred during the summer months and having cooling equipment operating correctly is vital to maintaining proper room temperatures. The cooling unit was a Refrigerated Make-Up Air Unit (RMAU) located on the roof of the facility and utilized a surge drum (flooded evaporator).

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