Damper Motors
Drive dampers with the control you need: two-position 24 V replacements for common zone dampers, fast floating-point actuators for precise blade positioning, and heavy-duty modulating options, plus OEM Lennox motors.
Choose by torque, control signal (2-wire, floating, or proportional), and shaft interface—several units are direct shaft-mount with 1/2″ collars for quick swaps.
The right motor keeps static in check and holds set CFM across changing conditions—essential for reliable zoning and economizer control.
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Quick Replacements and OEM Fits
2-Wire Spring-Return Replacements
This category covers 2-wire spring-return standbys—Honeywell M847D-Zone, Young Regulator 78G1001, and iO HVAC Controls HD-MOTOR-2—for common ARD/ZD-style and rectangular/round dampers.
Faster Positioning & Precise Control
For faster travel and tri-state control, drop in the Belimo CD-Motor (15-sec, floating-point) on CD/CRD dampers.
When you need heavy-duty modulation, choose Honeywell Modutrol IV—M9484F1007, M9185D1004, or M9484F1031—for proportional, three-wire control of dampers and valves.
OEM Lennox Actuators
OEM jobs are covered with Lennox actuators like the 78G67 modulating motor and 54G46 damper motor.
How to Choose
- Control Type: two-position (2-wire spring-return), floating/tri-state, or proportional/three-wire—match what the zone board or BAS provides.
- Voltage: most here are 24 VAC.
- Torque & Travel Time: size to damper area and leakage needs (Belimo option offers 15-sec travel).
- Shaft/Coupling: confirm 1/2″ collar vs 5/16″ round and mounting style. Then install, stroke, and verify operation
