How does this spring affect the pneumatic positioner's performance

resetting once it cools to 90°F

the 20028405 part may require replacement

accommodating a wider range of motor shaft diameters in the field

Constructed from durable steel and precision-cut insulation

Lennox 17W11 Defrost Thermostat 318423-701 How does this spring affectThe Lennox 17W11 Defrost Thermostat is a critical OEM replacement part designed to regulate the defrost cycle in high efficiency heat pump systems. Engineered for precise temperature monitoring, this Lennox L60 31F sensor prevents seasonal ice accumulation on the outdoor evaporator coil, ensuring consistent heat transfer and protecting the HVAC compressor from liquid slugging. As an SPST switch, it operates on a fixed temperature differential,