We confirmed today, thanks to a helpful customer, how another DuroZone damper wires using 3 wires (even though it has 5 terminals).
If your motors looks different than this, see our other posts about damper wiring:
4-Terminal and 8-Terminal Damper Wiring
If the motors you have are not compatible with SmartZone, you still don't have to replace the whole damper. You can replace just the motor (actuator) on just about any standard residential damper with the SmartZone / Belimo motor.
4", 5", 6", 7", 8", 9", 10", 12", 14", 16", 18" Available
FEATURES:
Industry-leading quality & highest reliability, Belimo Motor, Full-seal gasket blade, Super-Heavy Duty, Ribs for easy flex duct attachment, One crimped end for easy solid duct attachment, 5 Year replacement warranty.
NOTE: All dampers subject to a 10% restocking fee.