the ST-5 utilizes a series of factory-drilled air inlet holes to draw a representative cross-sectional sample of airflow into the detector’s sensing chamber

This component is built to withstand industrial-grade demands

Mechanical Efficiency: High tensile synthetic cords provide excellent resistance to elongation and fatigue under shock loads

while the Gripnotch design supports smaller pulley diameters where traditional belts might fail

Precision Sensing: Reliable mechanical actuation ensures accurate temperature response within the specified HVAC control parameters

Siemens Combustion SQM50.464R1Z3 Motor R-22 the ST-5 utilizes a seriesThe Siemens SQM50. 464R1Z3 is a high precision reversing actuator motor engineered for the critical positioning of air dampers and fuel control valves in medium to large capacity burner systems. Operating at 120V, this robust unit features a multi input control board that natively supports 4 20mA, 0 135 ohm, and 0 10Vdc signals, providing internal flexibility for diverse combustion control architectures. With a nominal 140 lb in torque rating and a 25