Question 53Refrigeration & AC - 1st Asst/Chief
70% to passWhat would be an example of a small appliance as defined in the EPA Clean Air Act rules?
Aa hermetically sealed water cooler with a 2 lb. refrigerant charge
Ba self-contained walk-in freezer with a 60 lbs. refrigerant charge
Ca 25 ton air conditioning system set up as a split plant with the condensing unit on deck
Da 200 ton low pressure centrifugal chiller for cargo hold air conditioning
AI Explanation
The correct answer is A) a hermetically sealed water cooler with a 2 lb. refrigerant charge. According to the EPA Clean Air Act rules, a "small appliance" is defined as any appliance that is fully manufactured, charged, and hermetically sealed in a factory with 5 pounds or less of refrigerant. A hermetically sealed water cooler with a 2 lb. refrigerant charge falls within this definition. The other options, such as a walk-in freezer, split air conditioning system, and large chiller, would be considered larger commercial/industrial refrigeration and air conditioning systems that are subject to different regulations under the Clean Air Act.
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