this switch should remain closed

Is disassembly required before brazing

and a furnace label to ensure a clean

allowing for fine-tuned calibration to meet specific appliance manifold requirements

preventing flex and maintaining calibration over extended service cycles

Lennox 21709 Blower Wheel Els PW 17895 this switch should remain closedThe Lennox 21709 Blower Wheel is a critical OEM replacement part engineered for high performance air delivery in residential and commercial furnace blower assemblies. This 10 5 8" x 7 1 8" centrifugal blower wheel features a 1 2" bore size and a robust 1 set screw design to ensure a secure, vibration free connection to the direct drive blower motor shaft. Designed for clockwise (CW) rotation (hub end), this wheel provides precise 48 blade alignment