Electronic humidity control

Details Electronic humidity control Electronic humidity control

1981-02-25

1982-11-30

Wayner, William E.

Automatic temperature and humidity regulation

Hot-air furnace

Air and fire control

126113, 165 21, 236 44R, F24D 510, F23N 300

Patent

active

043612733

ABSTRACT:
A control system for a humidifier, associated with a hot air furnace, that attains a high level of relative humidity without causing any condensation on the building interior by varying the level of operation of the humidifier as a function of the rate of heat loss from the building. Since the duty cycle of the furnace is a function of the rate of the heat loss, the system generates a digital signal related to the duty cycle and uses that signal to interrogate a digital memory storing a program of desired humidities for various duty cycles to output an instantaneous desired humidity signal which is compared with a measured humidity signal to develop an on/off control signal for the humidifier.

REFERENCES:
patent: 2286551 (1942-06-01), Kingsland
patent: 3464401 (1969-09-01), McGrath
patent: 3580501 (1971-05-01), Streed
patent: 3840176 (1974-10-01), Baysinger

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