초록 ▼

A reverse cycle heat reclaim coil in a refrigeration system having compressor, condenser and receiver means on the high side, including first valve means for selectively connecting the heat reclaim coil between the compressor discharge side and the condenser means to obtain heat reclamation during w

A reverse cycle heat reclaim coil in a refrigeration system having compressor, condenser and receiver means on the high side, including first valve means for selectively connecting the heat reclaim coil between the compressor discharge side and the condenser means to obtain heat reclamation during winter operations, and second valve means for selectively connecting the heat reclaim coil between the condenser and receiver means to obtain refrigerant subcooling during summer operations. The invention also includes the method of selectively connecting the heat reclaim coil in reverse cycle refrigerant flow in seasonal heat reclamation and subcooling modes.

대표청구항 ▼

In combination with a refrigeration system including compressor means having discharge and suction sides, condenser means, receiver means and multiple evaporator means, a heat reclaim coil disposed in an air handler unit adapted to seasonally condition air for heating and cooling space air in a buil

In combination with a refrigeration system including compressor means having discharge and suction sides, condenser means, receiver means and multiple evaporator means, a heat reclaim coil disposed in an air handler unit adapted to seasonally condition air for heating and cooling space air in a building, said heat reclaim coil having first and second piping connections and being selectively connected in said refrigeration system for reverse cycle operation between a heating mode and a subcooling mode, a first reversing valve located on the discharge side of said compressor means and having a summer position connecting said discharge side to said condenser means and a winter position for connecting said discharge side to said first piping connection of said heat reclaim coil, a second reversing valve located upstream of said receiver means and having a summer position and a winter position, said second reversing valve connecting said condenser means to the second piping connection of said heat reclaim coil and the first piping connection of said heat reclaim coil to said receiver means in the summer position thereof, and said second reversing valve connecting said condenser means to said receiver means in the winter position thereof.