Enhanced Sensitivity: The unique thermostat features a special thermo-bonded coating to resist scaling and maintain calibration

replacing the 302900 restores the factory-standard mechanical switch actuation required for safe boiler operation

Is the 393690-13 interchangeable with the 393690-13/U variant

325 series regulators usually require a vent line or a certified vent limiter for indoor installations

The A22284-1 is designed for specific series dimensions

Honeywell 205649 Bracket Enhanced Sensitivity: The unique thermostatThe Honeywell 205649 Anti Rotation Bracket is a heavy duty steel mounting accessory engineered for stabilizing direct coupled actuators in demanding industrial HVACR environments. Designed specifically for use with high torque 150 and 300 lb in actuators, this bracket ensures the motor remains stationary while the drive shaft rotates, preventing torque related shifting that causes premature component wear. It is compatible with both spring return (SR)