F - Mech Eng,Light,Heat,Weapons – 24 – H
Patent
F - Mech Eng,Light,Heat,Weapons
24
H
F24H 1/08 (2006.01) G05D 9/12 (2006.01) G05D 23/19 (2006.01) G08B 19/00 (2006.01)
Patent
CA 2109719
A hot water boiler system of the type of an atmospheric operation, capable of controlling automatically the pressure of room heating water under atmospheric pressure. A supplement water tank of the type open to atmosphere is disposed in a boiler case. A room heating water supplement line equipped with an electromagnetic valve is connected to a hot water supply line and a sensor is provided in the water supplement tank to sense a low water level so that automatic room heating water supplement is achieved by opening and closing operations of the electromagnetic valve according to the sensing operation of the sensor. There is also provided an overheat sensing circuit equipped with an overheat safety switch disposed and exposed outwardly of a boiler case, capable of achieving automatic water supplying upon a shortage of room heating water in a water chamber. The boiler system also comprises a circulation pump anti-fixing circuit for achieving periodical temporary operation of a circulation pump in the summer season that a room heating system is not operated for a long time so that the circulation pump can be always ready for its normal operation.
Choi Jin Min
Moffat & Co.
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