.05" to 2" WC
|Max Pressure (PSI):||
|Operating Temp Range:||
-40°F to 180°F
The Model AFS-271 is a general purpose proving switch designed for HVAC and Energy Management applications. It may be used to sense positive, negative, or differential air pressure.
Reviewed by 1 customer
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Comments about SPDT Open-Mounted Air Pressure Sensing Switch (.05" - 2.0" W.C.):
We have replaced a couple of this units we have several of them installed in our equipment in general I would say it does a fair job.
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Q:My l.b.white barn dryer burner starts cycling gas flow on and off after a few minutes of run time and this unit clicks is it the cause or could something else be?
A:yes the unit will click when it engages or disengages.