Patent ID: 7900467
Filing Date: 2011-03-08
Classification: F25B

Abstract:
1. A refrigeration system comprising: a first circuit configured to circulate a first refrigerant, the first circuit including a first evaporator; a second circuit configured to circulate a second refrigerant, the second circuit including a receiver, at least one display case, and a pump positioned downstream of the receiver to draw liquid refrigerant from the receiver, the receiver associated with the first evaporator such that the second refrigerant within the receiver is in a heat exchange relationship with the first refrigerant within the first evaporator; and a third circuit configured to circulate a third refrigerant, the third circuit including a second evaporator associated with the receiver of the second circuit and the first evaporator of the first circuit, and the third refrigerant within the second evaporator in a heat exchange relationship with the second refrigerant within the receiver.