Electronic humidity control
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United States of America Patent
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Nov 30, 1982
Grant Date -
N/A
app pub date -
Feb 25, 1981
filing date -
Feb 25, 1981
priority date (Note) -
Expired
status (Latency Note)
Importance
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.
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