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The ARZEL ZONING TECHNOLOGY stk-er0014 is a 14-inch round pneumatic zoning damper designed for use in forced-air HVAC zoning systems. It operates without motors or gears, relying instead on low-pressure air supplied by a medical-grade pump housed inside the Arzel Zoning control panel. Pneumatic tubing connects the damper to the panel, which delivers pressure or vacuum to open and close the blade. Licensed HVAC technicians install this damper by cutting a round hole into a metal duct, inserting the unit, and securing it with screws. The motorless, pneumatic design removes the most common points of mechanical failure found in motor-driven dampers.
The stk-er0014 is suited for residential and light-commercial forced-air zoning retrofits and new installations where metal round ductwork is present. Its insertable design makes it practical for retrofit work where duct access is limited and cutting into existing sheet metal is preferable to full duct replacement. Because actuation is pneumatic rather than electric, no low-voltage wiring to the damper itself is required. Arzel Zoning offers sleeved versions for non-metal ductwork applications where direct insertion into sheet metal is not feasible.
Compatible with any Arzel Zoning panel. Sleeved damper variants are available separately for non-metal ductwork.
Installation is performed by qualified HVAC technicians. Before cutting into the duct, shut down the air handler and de-pressurize the system. Use appropriate sheet metal tools to cut a clean, correctly sized hole, insert the damper, and secure with self-tapping sheet metal screws. Route pneumatic tubing from the damper to the Arzel Zoning control panel per the panel manufacturer's instructions, observing minimum bend radius guidelines to avoid restricting airflow through the tubing.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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