Hydronic antitrust operating system
AssigneeHoneywell Inc.
InventorsJohn C. Connell, Stephen L. Serber
Life of this patent
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Abstract
A hydronic type of heating system is operated by a burner control system that relies on measuring the boiler water temperature and comparing the temperature change with a rate of rise set into a burner control means to determine whether the boiler is being properly operated. This system allows for heating the boiler water to a sufficient temperature before circulating the water through the heat exchange means to thereby prevent condensation on the outside of the boiler heat exchanger to eliminate rusting.
Claims6
A burner control system adapted to control a burner for a boiler in an antirust mode with said boiler having water circulator means which moves hot water through the heat exchanger of said boiler and through heat exchanger means of space to be heated, including:
- ambient temperature control means for supplying a signal responsive to ambient temperature changes;
- burner control means having first input means connected to said ambient temperature control means;
- said burner control means having at least two output means with a first of said output means connected to fuel control means for said burner;
- a second of said output means connected to said water circulator means to control the movement of heated boiler water through said heat exchanger means;
- flame detector means responsive to the presence or absence of flame at said burner;
- boiler temperature sensor means responsive to the temperature of the boiler water and having signal output means;
- and signal processing means connected to said flame detector output means and said boiler temperature sensor output means and having signal output means connected to said burner control means;
- said burner control means responding to said ambient temperature control means and measuring the rate of rise of temperature of said boiler water to determine when to energize said water circulator means in the event that said rate of rise is adequate thereby indicating proper operation of said burner;
- said burner control means energizing said water circulating means only after the boiler water temperature has risen to a level sufficient to reduce condensation on said boiler heat exchanger thereby preventing rust from forming on said boiler heat exchanger.
Dependencies are inferred from the claim text.