Thermostat for control of an add-on heat pump system

Details Thermostat for control of an add-on heat pump system Thermostat for control of an add-on heat pump system

F - Mech Eng,Light,Heat,Weapons

25

B

341/32.1

F25B 29/00 (2006.01) F24D 19/10 (2006.01) G05D 23/275 (2006.01)

Patent

CA 1191230

ABSTRACT A two-stage thermostat means for an add-on heat pump installation provides separated control of a furnace and a heat pump. The two-stage thermostat means utilizes a single pole, single throw switch means, and a single pole, double throw switch means to properly stage and control a heat pump and a fossil fueled furnace so that they do not overlap. The control of the temperature of the heated area is independent of any need to connect a circuit between the thermostat in the heated area and any type of thermo- stat at the heat pump itself.

415520

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