Io Hvac Controls RM-2008 Rectangular Zone Damper 20x8

Product Description

The IO HVAC CONTROLS RM-2008 is a rectangular zone damper designed for use in residential and light commercial HVAC zoning systems. It controls airflow to individual zones by opening and closing on command from a zone control panel or thermostat. This unit ships with a Belimo actuator that operates on a 3-wire, 24-volt spring-return configuration and cycles in approximately 35 seconds. The damper measures 20 inches wide by 8 inches in height at the duct collar opening, making it a practical fit for standard rectangular duct runs. Licensed HVAC technicians typically install this component during new zoning system installations or as a direct replacement in existing ducted forced-air systems.

The RM-2008 is suited for rectangular duct applications where a dedicated zone damper is required to balance airflow across multiple conditioning zones. It is commonly installed in residential split systems and light commercial forced-air ducted systems. The 3-wire actuator wiring allows the damper to be driven open and spring-returned closed on a power loss, which is a standard fail-safe configuration for most residential zoning panel wiring schemes. Installers working within existing duct layouts will find the 20x8 inch collar size a common dimensional match for trunk-line branch takeoffs.

Key Features

• Rectangular collar opening sized at 20 inches by 8 inches for standard duct branch fitment
• Belimo actuator included, rated at approximately 35-second cycle time
• 3-wire, 24-volt actuator wiring for compatibility with standard residential zoning panels
• Spring-return actuator design provides fail-safe closed or open operation on power loss
• Package dimensions of 10 inches wide by 27 inches tall by 8 inches deep for shipping and storage planning

Compatibility

Designed as an OEM-style rectangular zone damper replacement for residential and light commercial forced-air ducted HVAC zoning systems requiring a 20x8 inch duct opening with a 3-wire Belimo actuator.

Installation Notes

Installation should be performed by a licensed HVAC technician familiar with low-voltage zoning controls and ductwork modification. Shut off power to the air handler and the zoning control panel before making any electrical connections to the actuator. Secure the damper to the duct section using sheet metal screws and seal all joints with appropriate duct tape or mastic per local mechanical code requirements. Verify actuator wiring polarity and zone panel compatibility before restoring power to the system.