Means for setting the switching on and off periods of a burner o

Heating systems – Automatic control – Water

Patent

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Details

236 46F, 236 91F, F24D 300

Patent

active

045851654

ABSTRACT:
The invention relates to a hot water heating system which includes individually operated radiators arranged in parallel. A heat exchanger and a pump supply hot water to the radiators. Control apparatus is included for reducing the on and off switching frequences. The control apparatus includes an integrator which outputs a value which is proportional to the difference between a reference temperature and the temperature at the output of the heat exchanger. The integrator value is fed to a hysteresis switch which switches the heat exchanger on and off when the integrator value reaches the opposite limits of the hysteresis switch.

REFERENCES:
patent: 4542849 (1985-09-01), Pichot et al.

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