Back-up auto-thermostatic modulating regulator

Details Back-up auto-thermostatic modulating regulator Back-up auto-thermostatic modulating regulator

F - Mech Eng,Light,Heat,Weapons

24

H

F24H 9/20 (2006.01) F24D 3/02 (2006.01) G05B 9/02 (2006.01)

Patent

CA 2230855

An automatic modulating regulator device and method of operation for use with a gas-fired hot water heat source supplied by a pressurized water supply. The hot water heat source has a hot water circuit to pump hot water to heat exchange elements. The regulator device comprises a valve which when a power failure occurs changes to a normally open state. The regulator device is adapted to be connected to a hot water return conduit of the hot water circuit. A self-powered thermostatic valve is responsive to a temperature sensor and modulates the flow of hot water returned through the regulator device. A flow restrictor is connected downstream of the regulator device for releasing controlled quantities of water from the return hot water conduit to a drain.

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