Airestat™ Calibration-Free, CO2 & Temperature Control For VAV Systems - Booths #1628, 6023, 6027

November 15, 2000, Santa Barbara CA: Telaire has just introduced the Airestat™ carbon dioxide (CO2) and temperature sensor, the first dual sensor available for use with VAV (variable-air-volume) air distribution systems typically used in large buildings. The Airestat™ can be used to reduce costly over-ventilation in buildings by controlling ventilation based on actual occupancy. The sensor incorporates Telaire's patented ABC Logic™ self-calibration system, which eliminates the need for manual sensor calibration.

The Airestat™ has a footprint of a typical temperature sensor but it also incorporates a state-of-the-art infrared sensor to measure carbon dioxide. "By combining the functionality of two sensors into one device we are able to simplify installation and dramatically reduce the price" said Rod Valenta, General Manager of Telaire. The product has all the features expected in a commercial building temperature sensor including a standard 10K ohm resistive output, occupancy override button and an option of a temperature adjustment slide pot. The sensor also incorporates a RJ45 connector to facilitate a pass through connection to any standard three-wire building automation network.

The self-calibrating CO2 sensor on board the Airestat™ provides a standard analog signal (V or mA) that can be used to for Demand Controlled Ventilation where ventilation to the space is controlled based on actual occupancy. "This sensor is unique in that it does not ever require manual calibration" said Valenta. "This feature, called ABC Logic™ makes the sensor as reliable and maintenance free as a thermostat". The sensor incorporates a special algorithm that will regularly compare and calibrate itself to natural background levels that occur in a space once it is unoccupied.

CO2 based Demand Controlled Ventilation allows for control of ventilation to meet code required ventilation rates on a per person basis, based on real time occupancy. This approach can result in considerable energy savings over the conventional approach of ventilating at a fixed capacity based on an assumed maximum occupancy. The energy saved form this type of strategy can typically pay for the sensor installation in a few months.

Telaire based in Santa Barbara CA, produces infrared gas sensors utilizing it's patented breakthroughs in low cost manufacturing. Sensors previously used only in high-end medical and scientific applications can now be applied to everyday tasks using Telaire technology. Telaire is a unit of Edwards Systems Technology a world leader in fire detection and life safety systems. Edwards is an operating unit of SPX Corporation (NYSE:SPW).

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