Electricity: motive power systems – With particular motor-driven load device
Patent
1993-09-29
1995-11-14
Martin, David S.
Electricity: motive power systems
With particular motor-driven load device
318779, 318783, 417 45, H02K 714
Patent
active
054669952
ABSTRACT:
A zoning circulator for circulating fluid within a zone in a hydronic heating or cooling system includes a zoning circulator controller including a speed regulating circuit for controlling the speed of a circulator motor. The circulator controller also includes an override circuit for operating the circulator at a high speed, high starting torque for several seconds to overcome frictional resistances between the moving parts of the motor and then tapers down to the speed established by the speed regulating circuit.
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Martin David S.
Taco Inc.
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