Automatic charge refrigerant transfer system

Details Automatic charge refrigerant transfer system Automatic charge refrigerant transfer system

1993-10-12

1995-04-18

Sollecito, John M.

Refrigeration

Automatic control

Withdrawing or adding refrigerant from or to normally closed...

62292, 62475, F25B 4500

Patent

active

054068061

ABSTRACT:
An automatic charge or recharge refrigerant transfer system, increases the percentage of refrigerant transferred from a container to the air conditioning unit to be charged. The suction line of the compressor of the air conditioning unit is connected to the discharge of the transfer unit and the discharge of the recovery system is connected to the intake of the transfer unit. The intake of the recovery system is connected to the refrigerant source. The transfer system has an automatic flow path, a manual flow path and a return flow path. The automatic flow path automatically controls the flow of refrigerant from the source through the recovery system to the air conditioning unit at a predetermined maximum pressure level. The parallel manual flow path permits use of a hand valve to control the flow of refrigerant from the source through the recovery system to the air conditioning unit. Finally, the return flow path from the transfer system to a recovery container allows release of refrigerant from the air conditioning unit if the unit is overcharged.

REFERENCES:
patent: 5214931 (1993-06-01), Paige
patent: 5230224 (1993-07-01), Ricketts

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