Duct Static Pressure 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.
Duct static pressure switch. Rely on grainger for a wide range of duct pressure switch options. An air switch senses positive negative or differential air pressure and actuates an internal switch. Air dp sensors switches air dp switches for fan proving single or multi range air dp sensors for dirty filter monitoring and air flow or pressure control. Hvac systems regardless of size are designed to move a certain amount of air.
An optional discharge air static high limit reduces the fan speed if discharge static pressure increases above its setpoint. Rely on grainger for a wide range of duct pressure switch options. Belimo offers a broad range of air duct sensors covering all standard measurement values. 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. With over 1 8 million parts in stock kele makes it easy to avoid project delays. Switch contacts are spdt with solder type connections. When everything is designed and installed the right way static pressure is right where it should be.
On a call for full pressure the fan runs at full speed. These sensors can be used to measure static pressure in a large range of liquids and gases. The controller uses a static pressure sensor located in the supply duct at the end of the longest run to modulate the supply fan to control duct static pressure. Ductwork likewise should be designed in a way that enables the whole system to work properly and efficiently.
Static pressure sensors are for use with pressure gages switches transmitters and other controllers to pick up or sense static pressure drop across air filters and cooling coils blower input and discharge pressures etc. Order the a 399 duct pressure kit separately. Temperature humidity dew point co voc s pressure and low temperature limit detection. Kele is the leading supplier of building automation products.
The model 1900 5 mr measures static pressure only not differential pressure. An air switch senses positive negative or differential air pressure and actuates an internal switch. Duct pressure switches automatically start and stop auxiliary devices like electronic air cleaners duct heaters humidifiers exhaust fans and duct booster fans. Static pressure is a drag literally.
Duct static control specifications are taken directly from vendors standard specifications. Pl liquid pressure sensors switches monitor flow and prove pumps chillers and valves.