External heat exchange unit with plurality of heat exchanger ele

Details External heat exchange unit with plurality of heat exchanger ele External heat exchange unit with plurality of heat exchanger ele

1988-11-09

1990-06-26

Tanner, Harry B.

Refrigeration

Automatic control

Of external fluid or means

62DIG17, F25B 3904

Patent

active

049361074

ABSTRACT:
An air conditioning apparatus includes an external heat-exchanger having upper and lower side heat-exchanger elements, arranged in a vertical direction, each having a plurality of fluid pipes, upper and lower fan devices disposed opposite to corresponding heat-exchanger elements, and a temperature sensor disposed on one end (discharge side during cooling) of the upper-most fluid pipe of the upper side heat-exchanger element for outputting a detection signal indicating the condensation temperature of the external heat-exchanger corresponding to the condensation pressure of the external heat-exchanger. The rotation speed of the upper side fan device is regulated in accordance with the detection signal from the sensor to control the condensation pressure of the upper and lower side heat-exchanger elements within a prescribed range.

REFERENCES:
patent: 3152455 (1964-10-01), Ware
patent: 3403314 (1968-09-01), Maynard
patent: 3478532 (1969-11-01), Cootey et al.
patent: 3817451 (1974-06-01), Ramsey
patent: 4325223 (1982-04-01), Cantley

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