Johnson Controls A19AAC-9 SPDT Thermostat Temperature Control 100°F/240°F 6" Capillary1 HP,

The Johnson Controls A19AAC-9 SPDT Temperature Control is a single-stage remote bulb thermostat designed to regulate temperature in HVAC systems like heating and cooling units. It utilizes a liquid-filled sensor with a capillary tube to detect temperature changes at a distance. This remote bulb allows for more precise temperature control compared to thermostats with built-in sensors, as it can be placed in the optimal location to monitor room temperature. The A19AAC-9 features a single-pole double-throw (SPDT) switch that triggers heating or cooling equipment up to 1 horsepower (HP) based on the set temperature and the detected temperature. With a temperature range of 100°F to 240°F, it’s suitable for various HVAC applications. Additionally, the 6°F differential helps prevent the HVAC system from short cycling, reducing wear and tear and potentially improving energy efficiency. In summary, the Johnson Controls A19AAC-9 SPDT Temperature Control offers precise temperature control.