Arzel Zoning Technology stk-er0004 Ezyslide Round Damper 4 in

Product Description

The ARZEL ZONING TECHNOLOGY stk-er0004 is a 4-inch round pneumatic zone damper designed for use in metal duct HVAC zoning systems. Part of the EzySlide damper line, this unit operates without motors or gears. Instead, it opens and closes using low-pressure air or vacuum supplied by a medical-grade pump housed inside an Arzel Zoning control panel. A pneumatic tube connects the damper to the panel, giving the system reliable zone control with minimal mechanical complexity. Licensed HVAC technicians install this damper as part of a complete zoning setup in residential and light commercial ducted air systems.

The stk-er0004 is intended for installation in 4-inch round metal ductwork. Its insertable design makes it well-suited for retrofit projects where cutting into existing duct runs is required. The damper is inserted through a field-cut hole in the duct wall and secured with screws, keeping installation straightforward. Arzel EzySlide dampers are available in 70 stock sizes, and sleeved variants are offered for non-metal ductwork applications where direct insertion is not possible.

Key Features

• Motorless and gearless pneumatic actuation reduces mechanical failure points
• Operated by low-pressure air or vacuum from a medical-grade panel pump
• Insertable installation method supports retrofit-friendly duct modification
• Connects to zoning control panel via standard pneumatic tubing
• Available in 70 stock sizes to suit a wide range of duct diameters
• Sleeved versions available for non-metal ductwork compatibility

Compatibility

Compatible with any Arzel Zoning control panel. Sleeved variants available for non-metal ductwork installations.

Installation Notes

Installation is performed by licensed HVAC technicians as part of a zoning system commissioning or retrofit. Power down the air handler and zoning panel before beginning duct modification. Cut a hole into the metal duct at the desired damper location, insert the stk-er0004, and secure it with screws per the manufacturer installation guide. Route pneumatic tubing from the damper to the corresponding port on the Arzel Zoning control panel, ensuring all connections are airtight before restoring system power.