clogged filters

As a TEV replacement part

making it suitable for both pressurized HVACR lines and above-ground potable water supply systems

3" WC applications across those equipment lines

this HVAC limit switch is built to handle the inductive loads of modern blower motors and control boards

Trane CNT1220 Limit Switch clogged filtersThe Trane CNT1220 (officially updated to CNT01220) is a high limit thermal safety control engineered for precise HVAC over temperature protection. Designed as a direct OEM replacement part, this 160F auto limit switch monitors the supply plenum temperature to prevent heat exchanger damage or unsafe operating conditions. Utilizing a normally closed SPST (Single Pole Single Throw) contact configuration, it interrupts the gas valve or heating circuit