HONEYWELL ZD16X12 16 inch x 12 inch Rectangular Parallel Blade Damper. The ZD is a power close, and spring open damper. It has a 24-volt, spring-return, power-closed damper motor used to control circulating air in heating, cooling and ventilating systems. It is used when a normally-open damper is required. The ZD is typically used with the TotalZone® Systems and other electronic mini-zone damper systems.Features • Kevlar gearing reduces wear, more than doubling damper life. • Adjustable range stops. • Mechanical visual position indicator for damper status. • Solid construction using extruded aluminum frame and blades. • Parallel blade design for low leakage performance. • Quieter operation with fewer blades. • Simple, easy-to-wire, two-wire installation. • Reliable, strong, 24-volt spring-return motor. • Fail-safe, normally open operation. • Compatible with conventional and networked zoning. • Compatible with conventional and networked zoning. • Ordering Instructions: Order ZD (dimension 1) x (dimension 2). (Motor is always mounted on dimension 2 side.) For example, ZD10x8 is a 10 in. x 8 in. damper with the motor on the 8 in. side; but a ZD8x10 is a 8 in. x 10 in. damper that has the motor on the 10 in. side.
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