Kristin R Schaefer

US Patent:

20100125368, May 20, 2010

Filed:

Nov 17, 2008

Appl. No.:

12/272504

Inventors:

John J. BAILEY - Tyler TX, US
Jose L. BALDERRAMA - Tyler TX, US
Jonathan D. DOUGLAS - Bullard TX, US
John R. EDENS - Kilgore TX, US
Alan D. MARBLE - Whitehouse TX, US
Gary L. SAPP - Tyler TX, US
Kristin L. SCHAEFER - Tyler TX, US
Brett R. SCHNEIDER - Tyler TX, US
Steven A. TICE - Flint TX, US

Assignee:

Trane International, Inc. - Piscataway NJ

International Classification:

G05B 15/00
G05D 23/00

US Classification:

700276, 236 46 R

Abstract:

A system and a method are provided for powering up a heating, ventilation, and air conditioning (HVAC) system and operating a sump heater for a compressor for a first predetermined period of time in response to the HVAC system being powered up. A heating, ventilation, and air conditioning system and a method for controlling the system are provided. The HVAC system includes a compressor, a sump heater associated with the compressor, and a controller configured to control the compressor and the sump heater so that the sump heater is not operated while the compressor is operated.