The radius is adjusted by loosening the swivel ball joint or rod connector and sliding it along the crankarm slot to the desired position between 1" and 2-3/4"

Key Benefits for Technicians: Dual Control Logic: Modulates the main gas supply while managing bypass gas under the same thermostatic action for tighter temperature tolerances

such as ignition failure

reducing vibration-related failures

Schneider Electric (Barber Colman) MA-305-500 Actuator 30067439-890 The radius is adjusted byThe Schneider Electric (Barber Colman) MA 305 500 Actuator is a heavy duty 24V spring return actuator engineered for precise two position control in commercial HVACR systems. Delivering a rated 16 lb in torque, this direct coupled actuator is ideal for driving small dampers and valves that require a fail safe return to the normal position upon power interruption. The MA 305 500 features a rugged die cast aluminum housing with a NEMA 4 rating,