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The IO HVAC CONTROLS RM-1606 is a rectangular zone damper designed for zoned forced-air HVAC systems. It incorporates a Belimo actuator with a 35-second stroke time and a 3-wire control configuration, allowing precise, motorized airflow regulation in residential and light commercial duct systems. The damper measures 16 x 6 inches in duct opening size and ships at 6.73 pounds, reflecting a robust build suited for in-duct installation. Licensed HVAC technicians install this component as part of a multi-zone control system, typically paired with a zone controller and low-voltage thermostat wiring.
This zone damper is used in residential and light commercial forced-air systems where independent temperature control is required for separate zones or rooms. The 3-wire Belimo actuator supports spring-return or proportional operation depending on system configuration, making it adaptable to common zone control panel wiring schemes. It is sized for a 16 x 6 inch rectangular duct opening and is appropriate for new construction or retrofit zoning installations.
Designed as an OEM-style replacement or new-installation zone damper for rectangular duct systems requiring a 16 x 6 inch damper with a 3-wire Belimo actuator.
Installation should be performed by a licensed HVAC technician. Shut down the air handler and de-energize the zone control panel before beginning any damper or actuator wiring work. The 3-wire low-voltage actuator leads must be connected according to the zone controller manufacturer's wiring diagram. Ensure the damper blade moves freely through its full range of motion before restoring system power.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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