Lennox 11W52 Limit Switch 320734-701 the valve must be installed

the valve must be installed with the stem in the vertical position

ensuring high-efficiency operation compared to standard PSC alternatives

eliminating the need for bracket modifications or shaft adjustments in the field

Conversions from PSC to ECM typically require different wiring harnesses and control logic

Durable Ceramic Insulation: High-grade materials prevent internal shorts and withstand the thermal stress of the burner assembly

Lennox 11W52 Limit Switch 320734-701 the valve must be installedThe Lennox 11W52 Limit Switch is a critical safety component engineered for precision thermal monitoring in high efficiency HVAC systems. This L240 30F limit control is designed to open the electrical circuit at a fixed temperature of 240F and automatically reset once the temperature drops by a 30F differential. Built to handle the rigorous duty cycles of commercial and residential furnaces, this switch ensures the blower motor and heat exchanger