Io Hvac Controls RM-2618 Rectangular Zone Damper 26x18

Product Description

The IO HVAC CONTROLS RM-2618 is a rectangular zone damper designed for zoned HVAC duct systems. It ships with a Belimo actuator rated for a 35-second stroke cycle and wired for 3-wire control, which supports both normally open and normally closed operation from a compatible zone control board. The damper measures 26 inches wide by 18 inches in duct opening size and weighs 15.73 pounds. Licensed HVAC technicians install this component when segmenting a forced-air system into independently controlled comfort zones.

This damper is suited for residential and light-commercial forced-air zoning applications where rectangular duct transitions require a motorized volume control. It fits inline in rectangular ductwork and is actuated by a low-voltage signal from a zone panel or thermostat-driven controller. The 3-wire actuator configuration allows the zone panel to drive the blade both open and closed rather than relying solely on spring return, which is common in multi-zone systems with high duct static pressure.

Key Features

• 26-inch by 18-inch rectangular duct opening for high-volume airflow zones
• Belimo actuator with 35-second travel time for smooth, quiet blade operation
• 3-wire actuator wiring supports active open and active close control
• Low-voltage control interface compatible with standard zone control panels
• Robust construction at 15.73 pounds suitable for commercial-grade installations

Compatibility

Designed as an OEM-style rectangular zone damper for forced-air zoning systems requiring a 26-inch by 18-inch inline motorized damper with a 3-wire low-voltage Belimo actuator.

Installation Notes

Installation should be performed by a licensed HVAC technician familiar with zoned forced-air systems. Shut down the air handler and de-energize the zone control panel before connecting or disconnecting actuator wiring. Verify duct dimensions and support the damper body independently before fastening to avoid stress on the actuator housing. Low-voltage wiring must comply with applicable NEC guidelines for Class 2 circuits.