Description
The Carrier HH12ZB230 is an automatic limit switch made for HVAC systems. An automatic limit switch controls the equipment’s on or off position in response to a variation in a physical condition, notably temperature. In HVAC equipment, this uses its temperature range of 190°F to 230°F to control temperature by making and breaking the electrical circuit and switching on or off the equipment when the temperature hits a specific threshold. The switch can turn off a furnace when it reaches the required temperature and then turn it on when the temperature drops to the required level.
