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This part serves as the official Weil McLain replacement for the AT140B1297
They share identical electrical specifications (208/240V to 24V
007" orifice size significant
Which systems are compatible with this spline wrench
allowing it to be secured directly to electrical knockouts or flat surfaces within control panels
Lennox 42J07 Limit Switch This part serves as theAs 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