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ensure the 210E Series or 325-9 Series housing is free of debris to maintain proper diaphragm response and system sealing
Built for high-torque applications
High-Torque Performance: Provides the leverage required to break loose seated valve cages without rounding off internal hex or slot features
ensuring that fuel flow is immediately terminated if the pilot flame is extinguished
providing a clear indication that the control relay is energized
Lennox 21L89 Limit Switch ensure the 210E Series orThe Lennox 21L89 Limit Switch is a critical safety component designed for precise thermal regulation in Lennox HVAC systems. This auto limit switch features a 3 inch insert and is engineered to open the electrical circuit if the heat exchanger temperatures reach the 210F to 240F range. As a direct OEM replacement part, the 21L89 is identical to the 21L8901, ensuring a drop in fit for contractors maintaining residential furnaces and air handlers. This
US$ 54.00
US$ 114.00