Description
The Belimo CD-MOTOR is a precision-engineered replacement actuator built specifically as a direct replacement for iO HVAC Controls CD and CRD Series dampers. Delivering reliable, repeatable performance, it’s an ideal drop-in solution for restoring proper damper operation in commercial HVAC applications without needing to replace the entire damper assembly. The actuator runs on 24V AC/DC (50/60 Hz) at 2.5 VA / 1.5 W, delivering 18 in-lb (2 Nm) of torque with a fast, constant 15-second stroke time for responsive damper control. Wiring is straightforward 3-terminal floating point control (1-Comm, 2-Close, 3-Open), simplifying integration with existing zoning and damper control systems. Housed in a NEMA 1 enclosure and assembled in the USA, the CD-MOTOR-24 is UL Listed, CE marked, and rated for Class 2 supply. It’s backed by Belimo’s 5-year warranty, giving contractors a dependable, code-compliant replacement option when an original CD or CRD damper actuator fails in the field.
Features:
- Direct Replacement for iO HVAC CD & CRD Series Dampers – Purpose-matched replacement, no damper assembly swap needed
- 18 in-lb (2 Nm) Torque, 15-Second Timing – Fast, dependable damper positioning independent of load
- Simple 3-Wire Floating Point Control – Clearly labeled 1-Comm, 2-Close, 3-Open terminals for easy wiring
- 24V AC/DC, Class 2 Supply – Low power draw at 2.5 VA / 1.5 W
- UL Listed, CE Marked, NEMA 1 Enclosure – Assembled in the USA and backed by a 5-year warranty



Jessica Harper (verified owner) –
Joe (verified owner) –