22 for wrot copper pressure fittings and NSF/ANSI 61 for potable water safety

It must be used to switch a relay or contactor coil rather than the primary heating element load directly

Does this module require a separate power supply for the signal

Robust Construction: Built with high-quality thermoplastic to withstand the high-temperature environments of condenser cabinets

As a genuine factory-sealed part

Resideo L4064B2210 Controller 30067439-890 22 for wrot copper pressureThe Resideo L4064B2210 Fan and Limit Controller is a critical component for regulating forced warm air heating systems, providing integrated control over blower motor activation and high limit safety protocols. This universal furnace fan limit switch features an 11. 5 inch element insertion length, making it ideal for large plenum applications where accurate temperature sensing is required. Engineered for reliability, the switch logic ensures the fan