Back-up auto-thermostatic modulating regulator

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

1998-07-29

2000-08-15

Joyce, Harold

Heating systems

Automatic control

Water

237 8C, 237 19, F24D 300

Patent

active

061022977

ABSTRACT:
An automatic modulating regulator device and method of operation for use with a non-electrical 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.

REFERENCES:
patent: 5572985 (1996-11-01), Benham
patent: 5588591 (1996-12-01), Sweitzer, Jr.

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