Hydronic heating outdoor temperature reset supply water temperat

Details Hydronic heating outdoor temperature reset supply water temperat Hydronic heating outdoor temperature reset supply water temperat

1995-09-18

1996-09-17

Tapolcal, William E.

Heating systems

Automatic control

Water

236 91F, 236 99E, F24D 300

Patent

active

055560270

ABSTRACT:
A hydronic heating system having a source of hot supply water and a reservoir of cooler return water, a supply water line from the source, a return water line to the reservoir and at least one heating loop through which water flows from the supply line to the return line, a three-way valve for feeding return water from the return water line to the supply water line to reduce the temperature of water flow to said heating loop and a valve feedback controller for varying the temperature of water flow to the heating loop, has an input to the valve controller representative of outdoor temperature, so that the temperature of water flow to the heating loop is increased or reduced when outdoor temperature falls or rises, respectively.

REFERENCES:
patent: 2211672 (1940-08-01), Reeder
patent: 2661906 (1953-12-01), Stahlberg
patent: 4679729 (1987-07-01), Petiejean et al.
patent: 4708287 (1987-11-01), De Wit
patent: 5119988 (1992-06-01), Fiedrich

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