Load management aware fan control

Inactive Publication Date: 2012-01-26
COOPER TECH CO
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  • Abstract
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  • Application Information

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Benefits of technology

[0015]In yet another embodiment, the present invention comprises a method of optimizing cooling efficiency when managing multiple electrical loads of cooling systems of buildings included in a load-management program, at least some of the cooling systems including above-ground ductwork. The method includes providing a load-management device to each of a plurality of buildings having cooling systems, providing a fan control device to the at least one of the plurality of buildings including the cooling system having above-ground ductwork, and transmitting a load-management command to the plurality of load-management devices, the command causing each of the load-manage

Problems solved by technology

However, in those buildings having air ducts located primarily in uncooled attic spaces, the continued operation of the circulation fan may cause the temperature of the space to be cooled to rise relatively quickly, especially in very hot weather conditions.
This accelerated warming effect is especially problematic in high-temperature climates, s

Method used

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Embodiment Construction

[0026]Referring to FIG. 1, a cross-section of a building 10 with an HVAC system 20 that includes ductwork 30 located in an unconditioned space, is depicted. Building 10, though depicted as a residential building or home, may also be a commercial building, industrial building, or any such building or structure having an interior space 40 requiring heating or cooling, and an attic or similar such space 50 located above space 40, and not receiving conditioned air. Though the term “HVAC” is generally understood to mean “heating, ventilating, and air conditioning”, it will be understood that HVAC system 20 may comprise heating and cooling capability, just cooling capability, or just heating capability. As such, when specific reference is made to a cooling configuration and operation, it will be understood that the same configuration and operation may exist and operate as a heating configuration and operation.

[0027]Ductwork 30 is connected to HVAC system 20, with portions of ductwork 30 l...

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PUM

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Abstract

A fan-control device for overriding normal operation of a circulation fan delivering conditioned air through ductwork in an unconditioned space. The fan-control device includes a detection circuit and a fan relay. The detection circuit is configured to detect a cooling system control voltage and a cooling system control current and to output a fan control override signal when the cooling system control voltage is detected and the cooling system control current is absent.

Description

FIELD OF THE INVENTION[0001]The present invention relates generally to management of electrical loads. More particularly, the present invention relates to control of circulation fans in a load-managed system for conditioning air.BACKGROUND OF THE INVENTION[0002]To manage electricity usage during times of peak demand, utility companies enroll consumers in load management, or load-shedding, programs. Participants of load-management programs agree to allow utility companies to reduce their power consumption by controlling operation of high-energy usage appliances such as air conditioners, hot water heaters, pool heaters and so on. Control of such appliances may be accomplished through the use of a controller integrated into, or cooperating with, a utility meter, thermostat, load-control device, or other such device.[0003]One of the most common high-energy-consuming appliances targeted for load control is a compressor of an air-conditioner. In a traditional forced-air heating and coolin...

Claims

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Application Information

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IPC IPC(8): F25D17/06F25D17/04
CPCF24F11/0079Y02B30/746F24F2011/0047F24F2011/0046F24F11/77F24F2140/50F24F2140/60Y02B30/70
Inventor COFFEL, JAMES A.ROGNLI, ROGER W.ALLMARAS, KEVIN C.SIMONSON, BROCK M.
Owner COOPER TECH CO
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