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PUMP DOWNIn a Refrigeration system, the operation by which the refrigerant in a charged system is pumped into the liquid receiver.
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PUMP DOWNThe act of using a compressor or a pump to reduce the pressure in a container or a system.
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PUMP DOWNTo use the compressor to pump all of the system's refrigerant into the receiver and/or condenser prior to opening the system for service. This is also used in commercial systems to prevent refrigerant migration in the off cycle.
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PUMP DOWNIs the process of preventing a refrigerant from a escape
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