Io Hvac Controls TD-1814-BM Rectangular Zone Damper 18x14

Product Description

The IO HVAC CONTROLS TD-1814-BM is a rectangular zone damper built for forced-air zoning systems in residential and light commercial HVAC applications. The unit ships with a Belimo 3-wire actuator mounted to the bottom of the damper body, providing 60-second travel time for reliable zone-by-zone airflow control. The damper opening measures 18 inches wide by 14 inches tall, making it a direct fit for standard rectangular duct runs used in Trane and American Standard zoning installations. Licensed HVAC technicians install this damper as part of a multi-zone control system, typically paired with a zone control panel and zone thermostats.

The TD-1814-BM is intended for rectangular duct zoning in residential and light commercial forced-air systems. It is specifically designed to match the dimensional and wiring requirements of Trane and American Standard zone control systems. The Belimo 3-wire actuator communicates with zone control boards that issue open and close commands, allowing individual zones to be conditioned independently. Typical installations include split-level homes, additions, and multi-story light commercial buildings where load balancing across zones is required.

Key Features

• 18 inch by 14 inch rectangular damper opening sized for standard duct transitions in Trane and American Standard systems
• Belimo 3-wire actuator included, factory-mounted to the bottom of the damper body
• 60-second actuator travel time provides smooth, controlled airflow modulation
• Bottom-mount actuator configuration suits installations where side or top access is restricted
• Drop-in replacement form factor reduces field modification time during retrofits

Compatibility

Designed as an OEM-style replacement zone damper compatible with Trane and American Standard rectangular duct zoning systems requiring an 18 inch by 14 inch damper with a Belimo 3-wire actuator interface.

Installation Notes

Installation should be performed by a licensed HVAC technician familiar with low-voltage zoning controls and duct fabrication. Shut down the air handler and de-energize the zone control panel before cutting into the duct and securing the damper. Verify that the control board is compatible with a 3-wire Belimo actuator signal before making low-voltage wiring connections. Follow local mechanical codes and the zone control panel manufacturer wiring diagram for proper actuator terminal assignments.