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 July 20, 2018

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Miscellaneous
8/14/2004 - Pneumatic
Originating in the early 1900ís, pneumatic control devices have been the backbone of commercial HVAC control systems. Still common today, primarily as the result of maintained and additions to existing systems, pneumatic controls provide a basic 20 psi powered environment to operate thermostats and actuators alike. They are relatively simple and reliable products and inherently provide modulation capabilities.

Their main source of air is generally from a single or duplex compressor with an air storage tank that provides 80-90 psi air to a pressure reducing valve at 20 psi. Typically the air is also passed through an air and water filter and a refrigerated air dryer.

These are mechanical devices that over a period of time require calibration and maintenance.

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Viking Controls Recycles
Recycle your old thermostats - it's good for the environment!

Did you know that the mercury in one thermostat could cause serious harm to public health and the environment, especially when discarded in the garbage?

Bring your old mercury thermostats to Viking Controls for proper disposal. For more information about mercury recycling and to find a recycle drop off center in your area, visit http://www.thermostat-recycle.org

VAV Balancing Sensors

Simple plug in of the NS-ATV7003-0 will make the balancers job a snap.

 

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