Coil bypass arrangement

Details Coil bypass arrangement Coil bypass arrangement

1990-10-29

1991-12-03

Wayner, William E.

Refrigeration

Automatic control

Of external fluid or means

62187, 62DIG17, F25D 1700

Patent

active

050690400

ABSTRACT:
A condensing unit has a housing with a pair of compartments separated by a common wall. Within each compartment is a coil, a fan for passing air over said coil and a compressor operatively interconnected with the coil. There is an opening in the common wall that is opened and closed by a damper. The damper is rotatably or pivotally secured to the common wall to open and close the opening therein. A damper motor is provided for actuating the damper is response to attainment of a predetermined refrigerant pressure in the refrigeration system in the first compartment. Opening of the damper allows air to be drawn from the inoperative second compartment through the first compartment, resulting in a reduced pressure differential across the coil in the first compartment and a reduction in the air flow across the coil in the first compartment. With the reduced air flow, the pressure in the refrigeration system in the first compartment will rise to a predetermined level and the damper motor will be deenergized. A spring may be provided to bias the damper to the closed position.

REFERENCES:
patent: 2332730 (1943-10-01), Kucher
patent: 2959933 (1960-11-01), Burke
patent: 3151469 (1964-10-01), Quick

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