Method and systems for operating compressors and fan coils using electronically commutated motors

Inactive Publication Date: 2007-09-13
REGAL BELOIT CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In certain scenarios this practice may result in a less than optimal performance of the system, while in other cases, replacement of the non-working unit may be acceptable.

Method used

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  • Method and systems for operating compressors and fan coils using electronically commutated motors
  • Method and systems for operating compressors and fan coils using electronically commutated motors
  • Method and systems for operating compressors and fan coils using electronically commutated motors

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Embodiment Construction

[0014] In one embodiment, the methods and systems herein described prevent operation of a HVAC system where only an outdoor unit of an indoor / outdoor unit pair has been replaced. However, these same methods and systems allow operation of such HVAC systems when only the indoor unit has been replaced. Such methods and systems results in HVAC system configurations such that ever increasing efficiency enhancing measures within indoor units can be utilized though the outdoor unit may be of a different configuration.

[0015] Generally, and referring to FIG. 1, in HVAC systems 10, an indoor evaporator / air handler unit 12 contains a circuit board based controller 14 that receives a 24 volt control signal 16 from a thermostat 18. In these embodiments, circuit board controller 14 is configured such that a subset 20 of the thermostat signals are routed through to an outdoor condenser / compressor unit 22 to control the operation of a compressor, fan, and other components of outdoor unit 22. One s...

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Abstract

A heating, ventilation, and air conditioning (HVAC) system is described that includes a first unit and a second unit. The first unit comprises a controller configured to output a coded compressor activation signal that is based at least partially on a compressor run signal received from a thermostat. The second unit comprises at least a compressor relay. The second unit is configured to receive and decode the coded compressor activation signal from the first unit and is operable to operate the compressor relay based on the decoded content of the coded compressor activation signal.

Description

BACKGROUND OF THE INVENTION [0001] This invention relates generally to operation of heating, ventilation, and air conditioning (HVAC) systems, and more specifically, to operation of compressors, fan coils, and the like using electronically commutated motors (ECMs). [0002] Energy efficiency minimum requirements continue to be tightened for HVAC equipment and systems. Therefore it has become more important that outdoor condenser / compressor units and indoor evaporator / air handler units are properly matched to one another so that it is possible to achieve the desired energy efficiency ratings. [0003] Heretofore it has been a common practice, when servicing HVAC equipment, to retain the working unit of the indoor / outdoor pair and replace the non-working unit. In certain scenarios this practice may result in a less than optimal performance of the system, while in other cases, replacement of the non-working unit may be acceptable. BRIEF DESCRIPTION OF THE INVENTION [0004] In one aspect, a ...

Claims

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Application Information

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IPC IPC(8): F25D17/00F25B49/00F25B1/00
CPCF24F1/0003F24F2011/0067F24F11/0009F24F11/30F24F11/54F24F11/871F24F11/88F24F11/63F24F11/86
InventorBEIFUS, BRIAN L.ARCHER, WILLIAM A.WRIGHT, KAMRON MARK
OwnerREGAL BELOIT CORP