Nordyne 626417R Limit Switch 321702-401 including the pneumatic 4-inch and

including the pneumatic 4-inch and 8-inch models

Designed with a corrosion-resistant brass body and 3/8-inch flare fittings

making it a reliable solution for remote or off-grid installations

While the EX4 series has bi-flow versions (e

Nordyne 626417R Limit Switch 321702-401 including the pneumatic 4-inch andAs a technician, you know that a tripped Nordyne 626417R Limit Switch is often the only thing standing between a routine heat cycle and a cracked heat exchanger. This OEM Nordyne furnace part is a critical high limit safety control designed to monitor internal plenum temperatures. If the heat exchanger exceeds safe operating parametersoften due to restricted airflow from a clogged furnace filter or a failing blower motorthis switch opens the circuit