High Duct Static Pressure Switch

Switch contacts are spdt with solder type connections.

High duct static pressure switch.

Bypass damper switch which applies to ventilation duct monitoring heat exchanger frost protection and industrial cooling circuits. Install a duct pressure switch from grainger to help your hvac system do its job. Series 1831 manual reset no power required dpdt low differential pressure switches which applies to hvac and high duct static cutout applications. 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. An air switch senses positive negative or differential air pressure and actuates an internal switch. With over 1 8 million parts in stock kele makes it easy to avoid project delays. Duct pressure switches automatically start and stop auxiliary devices like electronic air cleaners duct heaters humidifiers exhaust fans and duct booster fans.

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. The model 1900 5 mr measures static pressure only not differential pressure. Kele carries duct static pressure sensors and pressure accessories to fit your specifications. Duct pressure switches automatically start and stop auxiliary devices like electronic air cleaners duct heaters humidifiers exhaust fans and duct booster fans.

Install a duct pressure switch from grainger to help your hvac system do its job. The duct pressure sensors in turn send signals to crank the air handler even faster to get back up to normal operation.