Air conditioning apparatus including a heat pump

Details Air conditioning apparatus including a heat pump Air conditioning apparatus including a heat pump

1977-11-21

1979-03-13

Wayner, William E.

Heat exchange

Movable heating or cooling surface

Rotary drum

62160, 165 29, F25B 1300

Patent

active

041437071

ABSTRACT:
Apparatus are disclosed for conditioning the air within an indoor space and include first heat transfer means for selectively heating air passing to the space and a heat pump selectively operable in a heating mode, also for heating air passing to the indoor space. Control means are provided for effecting operation of the first heat transfer means and the heat pump which include means for sensing the demand for heat within the indoor space and for distinguishing between a relatively low demand and a relatively high demand. Operation of the heat pump is effected in response to a relatively low demand for heat until such demand is satisfied. In the event that a relatively high demand for heat is sensed, operation of the heat pump is terminated and the first heat transfer means is operated until such time as both the relatively high and low demands for heat are satisfied. In the event that outdoor ambient temperature drops below a predetermined level, means are provided for preventing operation of the heat pump and for effecting operation of the first heat transfer means in response to the relatively low demand for heat.

REFERENCES:
patent: 3373800 (1968-03-01), Ferdelman
patent: 3537509 (1970-11-01), Ferdelman
patent: 3996998 (1976-12-01), Garst et al.

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