Lennox 69W37 Limit Control L165°F-30°F

The Lennox 69W37 Limit Control is an essential safeguard for a number of HVAC equipment such as furnaces and air handlers. It also functions as a temperature controller, always maintaining the internal temperature of the unit. In case the temperature goes beyond a set safe level, the limit control comes in to prevent the heating process by turning it off. This essential safety device protects your HVAC system from overheating and possibly suffering some damage. The temperature rating is 165°F (it shuts off on temperature rise) and this is a measure to ensure that the control shuts the heating cycle in order to prevent damaging the equipment.