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US 5,341,986 AGranted
Control circuit and device for humidifying air in a heating system
OwnerMark A. Galba, Gus N. Gallasinventors
Life of this patent
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Abstract
A humidification system for use with a heating unit to modify and maintain a predetermined level of humidity in an enclosed space using a pulse circuit for energizing a solenoid valve to allow pulsed output of water from a misting nozzle, The system operating the pulse circuit in a plurality of modes to provide humidity to the enclosed space,
Claims15
A control circuit for a heating and humidification system which system includes a furnace, a fan, a thermostat, and a humidistat, said control circuit including:
- input means for receiving a humidity increase signal from said humidistat;
- pulse means for providing a pulsed output of water in response to said humidity increase signal;
- control means adapted to be connected to said input means, said pulse means, the fan, and the furnace for controlling and energizing said pulse means in response to said humidity increase signal, said control means having a unison mode operable to energize said pulse means during the energization of the furnace and fan, a by-pass mode operable to energize said pulse means and the fan during the deenergization of the furnace, and a stand-by mode operable during said by-pass mode to deenergize said pulse means and the fan and to energize the furnace.
A humidification system adapted for installation in conjunction with a heating unit and a fan, said system including,
- a humidifier adapted to emit moisture into a ductwork system;
- a humidistat adapted to sense the relative humidity present in the air and to transmit a humidity increase signal when said humidity falls below a preselected value;
- a first electrical circuit connecting said humidistat and said humidifier whereby when said humidity falls below said preselected value, said first circuit energizes said humidifier;
- and
- means for controlling said first circuit, the fan and the heating unit, said control means operative in a first mode to energize said humidifier during the operation of the fan and heating unit, operative in a second mode to energize the fan and said humidifier while the heating unit is idle, and operative in a third mode for interrupting operation of said second mode so as to energize the heating unit and to deenergize the fan and said humidifier.
2 more elements
Dependencies are inferred from the claim text.