Patent ID: 8011196

Claim:
A refrigerant system for handling liquid and gaseous refrigerant, comprising: a compressor that defines a compressor inlet and a compressor outlet; a main condenser connected in fluid communication with the compressor outlet; an evaporator connected in fluid communication with the compressor inlet; a main expansion device connected in fluid communication with the main condenser and the evaporator such that the main expansion device is downstream of the main condenser and upstream of the evaporator; a second condenser connected in bypass flow relationship with the main condenser; a condensate sump connected to receive the refrigerant from at least one of the main condenser and the second condenser, the condensate sump is also connected to release the refrigerant to the main expansion device; a weir disposed within the condensate sump to help maintain a minimum level of liquid refrigerant therein; and a drain tube connecting the second condenser in fluid communication with the condensate sump such that the drain tube, the weir and the condensate sump provide a gas trap between the main condenser and the second condenser.