Johnson Controls A19AAF-12 Temperature Control 30067439-890 Its robust construction is designed

Its robust construction is designed to withstand the high-vibration environments of a mechanical room

depending on specific pressure drop requirements

The 20163801 is the current production standard and serves as the functional and dimensional replacement for the older 20163801S designation

007 orifice ensures that the air volume is restricted enough to allow the thermostat to maintain control over the branch pressure without overwhelming the system's air compressor capacity

Johnson Controls A19AAF-12 Temperature Control 30067439-890 Its robust construction is designedThe Johnson Controls A19AAF 12 is a robust mechanical temperature control engineered for high performance heating and general purpose HVACR applications. Built with a single pole double throw (SPDT) switch configuration, this remote bulb controller delivers precise temperature regulation across a broad 25 to 225? F setpoint range. The unit features an automatic reset mechanism and a 3. 5? F fixed differential, ensuring consistent cycling and system