Io Hvac Controls RM-2808-BM Zone Damper 28x8 in Rectangular

Product Description

The IO HVAC CONTROLS RM-2808-BM is a rectangular zone damper designed for zoned HVAC duct systems. It measures 28 inches wide by 8 inches tall and uses a bottom-mount configuration. The damper ships with a 35-second Belimo actuator wired as a 3-wire (floating point) control device, making it compatible with standard zone control boards and thermostats that output a 24-volt open/close/common signal. Licensed HVAC technicians install this damper as part of a multi-zone forced-air system to regulate conditioned airflow to individual zones on demand.

This damper is sized for rectangular duct applications in residential and light commercial forced-air systems. The 28-inch by 8-inch duct opening suits larger trunk or branch duct runs where airflow volume demands a full-size damper. The bottom-mount actuator position is suited for installations where access from below the duct is required. The included Belimo actuator provides reliable, repeatable blade positioning over the life of the system, reducing callbacks related to actuator failure.

Key Features

• 28 x 8 inch rectangular duct opening for high-volume branch or trunk duct runs
• Bottom-mount actuator position for installations with bottom-access ductwork
• Factory-installed 35-second Belimo actuator for reliable, repeatable blade control
• 3-wire floating point control wiring compatible with standard 24-volt zone control systems
• Packaged weight of 8.73 pounds for straightforward single-technician handling

Compatibility

Designed as an OEM-style replacement or new-install zone damper for rectangular ducted residential and light commercial forced-air HVAC systems using 24-volt, 3-wire zone control wiring.

Installation Notes

Installation should be performed by a licensed HVAC technician. Shut down the air handler and de-energize the zone control panel at the breaker before cutting into ductwork or connecting low-voltage wiring. Secure the damper to the duct using sheet metal screws and seal all joints with foil-backed tape or mastic per local mechanical code. Route and connect the 3-wire actuator cable to the zone control board following the board manufacturer wiring diagram.