controls air solution

American ALDES has the right control for all of our ventilation products. The controls range from basic twist timers to programmable timers and advanced pressure sensing controls that regulate ventilation in large buildings.

Positive/Negative Pressure Switch

Fan Control - Positive/Negative Pressure Switch by American Aldes

American ALDES Positive/Negative Pressure Switch - P/N 28 866 proving switch. It is adjustable to between 0.05" to 1.0" water differential pressure. Using either positive or negative pressure taps. Suggested use: To sense range hood operation and initiate makeup air fan. Switch suitable for 115 volt supply. 10 amp rating.

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