Integrated zoning circulator

Details Integrated zoning circulator Integrated zoning circulator

1993-07-13

1995-08-22

Bennet, Henry A.

Heating systems

Automatic control

Water

237 8C, F24D 300

Patent

active

054432073

ABSTRACT:
An integrated wet-rotor zoning circulator for circulating fluid within a zone in a hydronic heating or cooling system. The zoning circulator has three primary components: a motor, an impeller casing, and a controller. The controller, which is integrated with the motor, houses a voltage transforming device (e.g., a transformer) and a switching device (e.g., a relay). When a thermostat in the zone being served by the zoning circulator closes, the switching device closes and the pump is activated.

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patent: 4335848 (1982-06-01), Eidejus
patent: 4497438 (1985-02-01), Bonne
patent: 4629116 (1986-12-01), Laing et al.

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