Honeywell Servo motor A5-5S1 LKS160-01

The Honeywell Servo motor A5-5S1 LKS160-01 is a reversible synchronous motor actuator designed for air flap control on multistage or modulating gas and oil burners. It operates at 230 V with a power consumption of 4 W, provides a torque of 2.5 Nm, and has a runtime of 5 seconds for a 90° rotation angle. The unit features stepless cam adjustment, a scale for position indication, and terminal block electrical connections. It is maintenance-free, has a protection class of IP44, safety class II, and weighs 600 g with dimensions of 13x6.2x14.5 cm. The drive shaft is made of steel, and the gear transmission is cylindrical and maintenance-free. It complies with EU directives 73/23/EU and 93/68/EU, and standard EN 60730-2-5:1991.

Parts of this type are selected by matching the supply voltage, torque, runtime, rotation angle, and shaft dimensions to the burner's requirements. Mounting is typically done using through holes with M5 thread, and the actuator can be installed in any position. Before ordering, verify the electrical connection type (e.g., terminal blocks) and the protection class needed for the environment. Ensure the cam settings are adjustable to match the required switching points.

Common failure modes for such actuators include motor burnout due to overloading or voltage spikes, gear wear leading to erratic movement, and cam misalignment causing incorrect flap positioning. Symptoms may include the burner failing to modulate properly, the flap not reaching its full open or closed position, or unusual noises during operation. Check the actuator's power supply, cam settings, and mechanical linkage for obstructions or wear.