Aprilaire 410 Filter 323269-701 What does "Open on Rise"

What does "Open on Rise" mean in this application

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significantly reducing energy consumption compared to standard constant-volume systems

a non-spring return unit utilizing Multi-Function Technology (MFT)

The KMC Controls CTE-5104-10 Thermostat Kit is a field-proven electronic dual setpoint thermostat designed for high-precision control in commercial HVAC applications

Aprilaire 410 Filter 323269-701 What does "Open on Rise"The Aprilaire 410 Filter is a high performance MERV 11 air filter designed to optimize your indoor air quality by capturing a vast majority of airborne contaminants. Engineered for Aprilaire whole house air purifiers, this 16x25 air filter replacement utilizes patented Self Seal technology to eliminate air bypass, ensuring that all circulating air is effectively scrubbed of impurities. By trapping up to 85% of particles such as pollen, mold spores,