Lennox 50L68 Control Kit 320734-701 and when the system increases

and when the system increases to "summer" pressure

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the VG1841BL features plated brass trim and is intended for water and glycol

This kit is built to support AV-21 through AV-30 linkage series

while the integrated end switch allows for seamless sequence-of-operation signaling to secondary equipment like fans or boilers

Lennox 50L68 Control Kit 320734-701 and when the system increasesThe Lennox 50L68 Control Kit (LB 96030A) is a critical limit switch assembly engineered for high performance thermal regulation in residential gas furnaces. As a primary safety component, this limit control kit monitors heat exchanger temperatures to prevent overheating and potential equipment failure. Designed for seamless integration, it serves as a direct replacement for OEM Lennox furnace parts, ensuring your system remains compliant with original