Johnson Controls A19AAD-26 SPST Temperature Control 30°F/90°F, 6", 3/8" X 1.5"

The Johnson Controls A19AAD-26 is a single-stage remote bulb temperature control used to maintain temperature within a certain range in HVAC systems. It operates based on the changes in temperature of the surrounding environment by a bulb that contains a liquid or a gas that changes in volume with temperature. This activates an internal switch that either switches on or off other connected equipment depending on the set parameters. Originally designed for use with refrigeration or heating equipment, the A19AAD-26 is used to control temperature in walk-in coolers, freezers, and heating systems. It has a temperature range of 30°F to 90°F and is most suitable for use where temperature control is critical.