In accordance with city codes, garage exhaust fans typically run continuously during all periods when the garage may be in use to protect against unhealthful buildup of carbon monoxide (CO). Generally, it is only during particularly heavy traffic periods when CO levels might actually require the use of the fans. In many cases, fans may only be needed for one or two hours during the day, but are running 24/7, since the time when fans may be needed cannot be known in advance.

City codes now allow, and in some cases are mandating, the use of CO sensors (often with VFDs) to operate fans only when necessary to reduce energy cost and keep CO from reaching unhealthful levels. This results in up to 90% reduction in energy cost and greatly increased fan motor life.

PRODUCT INFORMATION

Product Overview (pdf)

Key Features and Specifications (pdf)

CASE STUDIES

Westwood Plaza Case Study (pdf)

California Energy Commission Study (pdf)

These sensors have a 5-year life, feature an inexpensive sensor replacement after the 5 years, and are easily integrated into existing equipment and energy management systems.