Resideo zd16x18tz/u Parallel Blade Damper 16x18 in

Product Description

The RESIDEO zd16x18tz/u is a 16-inch by 18-inch parallel blade zone damper designed to control circulating airflow in ducted HVAC systems. It uses a 24-volt motor to open and close the blades, directing conditioned air to specific zones as commanded by a zoning controller. This damper operates as a power-close, spring-open unit, meaning it fails to the open position when power is removed. That normally-open fail-safe behavior is critical for maintaining airflow in the event of a power interruption. HVAC technicians install this damper as part of a zoned forced-air system to balance comfort and efficiency across multiple areas of a building.

This damper is suited for residential and light commercial forced-air zoning applications. It is typically installed in rectangular ductwork where zone-by-zone airflow control is required. The supplier indicates it is commonly used with TrueZONE electronic zoning systems and other compatible electronic zoning controllers. The 24-volt motor is compatible with standard low-voltage zoning control wiring, making integration into existing zone control panels straightforward for experienced HVAC technicians.

Key Features

• Power-close, spring-open operation provides normally-open fail-safe behavior on power loss
• 24-volt motor integrates directly with standard low-voltage zoning control systems
• Parallel blade design suits rectangular duct installations for zone airflow control
• Nominal duct opening size of 16 inches by 18 inches
• Compatible with TrueZONE and other electronic zoning systems per supplier documentation

Compatibility

Designed for use with TrueZONE electronic zoning systems and other low-voltage electronic zone control panels. Installs in rectangular ductwork with a 16-inch by 18-inch opening.

Installation Notes

Installation should be performed by a licensed HVAC technician familiar with low-voltage control wiring and duct fabrication. Disconnect power to the air handler and zoning panel before wiring the damper motor. Refer to the zoning controller manufacturer wiring diagram for proper terminal connections. Ensure the damper is installed with adequate clearance for blade travel and that sheet metal screws or equivalent fasteners secure the unit to the duct collar.

Technical Specifications

• Damper Size: 16 inches x 18 inches
• Motor Voltage: 24 volts
• Blade Type: Parallel blade
• Operation Mode: Power close, spring open (normally open)

Standard Information

• Brand: RESIDEO
• Manufacturer Part Number: zd16x18tz/u