Johnson Controls A19AAB-4 Temperature Control Els PW 17895 Safety Compliance: Designed as a

Safety Compliance: Designed as a normally open SPST switch that closes only when the draft inducer motor reaches the proper RPM

utilizing OEM Armstrong steam trap parts like the B6459-1 is essential for ensuring dimensional accuracy and chemical resistance against boiler treatment chemicals

This 22-inch HVAC replacement fan blade operates with a 28-degree pitch and a clockwise (CW) rotation (determined by viewing the intake side)

providing a stable interface for brass water gauges and steam boiler pressure sensors in demanding mechanical room environments

preventing ignition during vent blockages or inducer failure

Johnson Controls A19AAB-4 Temperature Control Els PW 17895 Safety Compliance: Designed as aThe Johnson Controls A19AAB 4 is a professional grade mechanical temperature control designed for heavy duty HVACR applications requiring high precision single stage temperature control. This robust remote bulb thermostat features a single pole, single throw (SPST) switch configuration that is factory set to open on high temperature. Engineered with a liquid filled sensing element, the A19AAB 4 provides consistent repeat accuracy that remains