High Duct Static Pressure Switch

Duct pressure switches automatically start and stop auxiliary devices like electronic air cleaners duct heaters humidifiers exhaust fans and duct booster fans.

High duct static pressure switch.

An air switch senses positive negative or differential air pressure and actuates an internal switch. The dwyer model 1900 5 mr manual reset pressure switch is designed to monitor duct static and shut down the blower when excess pressure occurs. Order the a 399 duct pressure kit separately. Bypass damper switch which applies to ventilation duct monitoring heat exchanger frost protection and industrial cooling circuits.

Because the fire dampers are closed when the air handler ramps up the duct pressure upstream of the fire dampers will increase to a point where a high static pressure switch will cut power to the vfd variable frequency drive and send a signal to the ddc direct digital control. An air switch senses positive negative or differential air pressure and actuates an internal switch. Kele carries duct static pressure sensors and pressure accessories to fit your specifications. The model 1900 5 mr measures static pressure only not differential pressure.

The switch must be manually reset before the system can start again. Duct pressure switches automatically start and stop auxiliary devices like electronic air cleaners duct heaters humidifiers exhaust fans and duct booster fans. Series 1831 manual reset no power required dpdt low differential pressure switches which applies to hvac and high duct static cutout applications. With over 1 8 million parts in stock kele makes it easy to avoid project delays.

Switch contacts are spdt with solder type connections. Install a duct pressure switch from grainger to help your hvac system do its job.