Trane CNT1662 High Limit and W45 series controls that

and W45 series controls that feature a plastic cover

ensuring a direct fit for field repairs

The primary 120V side uses wire leads

While designed for Rheem-Ruud specifications

Trane CNT1662 High Limit and W45 series controls thatThe Trane CNT1662 High Limit is a critical safety component designed for precise thermal regulation within furnace and air handler heat exchangers. Built with an L250F SPST NC C High limit configuration, this switch acts as a failsafe by monitoring supply plenum temperatures and interrupting the 24V control circuit if levels exceed the 250F threshold. This immediate shutdown of the gas valve helps prevent structural damage to the primary heat