Carrier HH18HA296 Temperature Limit Switch

The Carrier HH18HA296 Temperature limit switch is a safety device protecting your HVAC equipment from overheating. It also can turn off the system in case of high temperatures which are dangerous to the system. This works as a guard with the main duty of monitoring temperature. If it gets to a certain level set (normally around 300°F), the switch turns on a relay and either sequence or shuts down the system to avoid overheating. This essential safety feature safeguards your HVAC unit and prevents you from spending a lot of money on repairs. The exact cut-out temperature may be somewhat different depending on the particular application but this assuress that your HVAC continues to run within the appropriate range.