By maintaining a precise three-minute delay window

This SPST normally closed switch is engineered to monitor heat exchanger temperatures and break the electrical circuit if the internal temperature exceeds the 190°F open temperature threshold

The multi-poise mounting allows for flexible installation in any orientation

ensure the mounting orientation and surface contact are secured to maintain accurate temperature sensing across the 140-190

The Lennox 48G22 typically includes a set of standard orifices

Armstrong Furnace R110000245 Limit Switch By maintaining a precise three-minuteThe Armstrong Furnace R110000245 Limit Switch is a critical safety component designed for high performance HVAC systems, functioning as an automatic reset limit control. This OEM replacement part features a temperature range of 80 140F, ensuring the furnace operates within safe thermal parameters to prevent heat exchanger overheating. Engineered for Armstrong and Air Ease furnaces, this bimetal disc limit switch monitors internal plenum temperatures,