Adaptive low fire hold control system

Details Adaptive low fire hold control system Adaptive low fire hold control system

1984-09-17

1985-04-30

Wayner, William E.

Automatic temperature and humidity regulation

Closed fluid heaters

Pressure-operated

122448R, 236 1EB, 236 78D, F22B 3500, G05D 1500

Patent

active

045139105

ABSTRACT:
A boiler control utilizing a pressure sensor is provided that operates the system in the low fire mode if the load is light, and can be satisfied in that mode. If the low fire operation is inadequate to hold the load and the pressure drops, the boiler is then operated in a modulating mode which includes a high fire limit. This is accomplished by sensing the variation of a pressure responsive means and by providing a burner control system that monitors that pressure responsive means.

REFERENCES:
patent: 3486693 (1969-12-01), Stang, Jr. et al.
patent: 4003342 (1977-01-01), Hodgson

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