초록 ▼

A fluid defrost system and method for defrosting the cooling coil of a product fixture normally cooled by circulating a cold secondary liquid coolant in a cooling loop refrigerated by a primary vapor compression system having compressor, condenser and evaporator means; the defrost system comprising

A fluid defrost system and method for defrosting the cooling coil of a product fixture normally cooled by circulating a cold secondary liquid coolant in a cooling loop refrigerated by a primary vapor compression system having compressor, condenser and evaporator means; the defrost system comprising a heat exchanger associated with the condenser means for warming secondary liquid coolant in a heating loop, and means for controlling the circulation of warm liquid coolant through the heat exchanger and cooling coil.

대표청구항 ▼

[ What is claimed is:] [1.] A fluid defrost system for defrosting the cooling coil of a product fixture normally cooled by circulating cold secondary liquid coolant therethrough in a cooling loop refrigerated by a primary vapor compression system having compressor, condenser and evaporator means; th

[ What is claimed is:] [1.] A fluid defrost system for defrosting the cooling coil of a product fixture normally cooled by circulating cold secondary liquid coolant therethrough in a cooling loop refrigerated by a primary vapor compression system having compressor, condenser and evaporator means; the defrost system comprising a defrosting loop constructed and arranged for circulating warm secondary liquid coolant through the cooling coil, said defrosting loop including warm heat exchanger means downstream of the condenser means and control means for controlling the flow of warm liquid coolant in the defrosting loop and cooling coil.