Supports high-efficiency operation in residential propane heating applications

How do I adjust the pressure once the spring is installed

When replacing an aging or failed HVAC blower motor

Key Benefits Genuine OEM quality ensures exact technical compatibility and reliable trip-point accuracy for Copeland systems

Trane CNT4821 Limit Switch 318973-401 Supports high-efficiency operation in residentialThe Trane CNT4821 Limit Switch is a high reliability safety component engineered for precision thermal monitoring in furnaces and air handlers. Featuring a 180F Auto Reset bi metal disc mechanism, this switch serves as a critical fail safe by opening the electrical circuit when internal plenum temperatures exceed safe operational limits. Once the temperature descends below the reset threshold (typically 160F), the bi metal disc automatically returns