Heat pump control system

Details Heat pump control system Heat pump control system

1980-03-27

1981-06-09

Davis, Albert W.

Heat exchange

Movable heating or cooling surface

Rotary drum

62156, 62160, F25B 2900, F25D 2102

Patent

active

042718996

ABSTRACT:
The present invention relates to a self-contained air conditioning unit including a reversible refrigeration system and more particularly to a control system having a plurality of sensing means that are effective in maintaining operation of the unit in a heat mode by use of a supplemental heater when the ambient and the surface temperature of selected refrigeration components are above a preselected frosting temperature, and a secondary heater when the system is in a defrost mode.

REFERENCES:
patent: 3131549 (1964-05-01), Rhea
patent: 3159981 (1964-12-01), Huskey
patent: 3348607 (1967-10-01), Cootey
patent: 3447335 (1969-06-01), Ruff et al.
patent: 3466888 (1969-09-01), Kyle
patent: 3474639 (1969-10-01), Smith
patent: 3529659 (1970-09-01), Trask
patent: 4024722 (1977-05-01), McCarty
patent: 4102391 (1978-07-01), Noland et al.

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