Lennox 42J07 Limit Switch What is the difference between

What is the difference between the S84-11 and the S84Z-90

007" orifice size significant

this unit minimizes resistance and extends the service life of auxiliary signaling paths

They share identical electrical specifications (208/240V to 24V

Which systems are compatible with this spline wrench

Lennox 42J07 Limit Switch What is the difference betweenAs an HVAC technician, you know that a reliable Lennox 42J07 Limit Switch is non negotiable for system safety and performance. This genuine OEM replacement part is an auto reset limit switch engineered to monitor internal plenum temperatures in a variety of Lennox residential and commercial units. Specifically designed as an L220 40F limit switch, it features a fixed temperature setting that triggers the circuit at a high limit of 220F and resets once