Temperature control for variable volume air conditioning system

Details Temperature control for variable volume air conditioning system Temperature control for variable volume air conditioning system

1978-04-24

1980-01-08

Wayner, William E.

Automatic temperature and humidity regulation

Miscellaneous

Burner controls with automatic cutoff

165 26, 236 49, 236 91F, 318625, F25B 2900

Patent

active

041824849

ABSTRACT:
A temperature control is disclosed for a variable volume air conditioning system of the type wherein electric motor-operated air valve means are provided for varying the volume and relatively warm or relatively cool conditioned air supplied to a conditioned zone. The control includes zone thermostat means for producing an electrical error signal having a magnitude which varies in a predetermined relationship with respect to a deviation in zone temperature, and changeover circuit means for varying said predetermined relationship in order to accommodate changeover between heating and cooling, as sensed by duct temperature sensing means. The control further includes flow limit circuit means for imposing limits upon the maximum and minimum desired flow of conditioned air through the air valve means.

REFERENCES:
patent: 3377545 (1968-04-01), Tveit
patent: 3388860 (1968-06-01), Kruper
patent: 3682381 (1972-08-01), Eckman
patent: 3690548 (1972-09-01), McNabney
patent: 3725644 (1973-04-01), Bailey
patent: 3734192 (1973-05-01), Dean, Jr.
patent: 3806027 (1974-04-01), Ginn et al.
patent: 3934795 (1976-01-01), Ginn et al.

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