Lennox 21709 Blower Wheel 30067439-890 This current relay is specifically

This current relay is specifically designed for Copeland 940 and 945 Series refrigeration units and is frequently found on MOD 137

For contractors servicing York and Coleman heating equipment

this part number is a combo unit that typically includes the mounting frame and the distribution wick required for proper water flow across the 318518-762 media

this air pressure sensing switch monitors the vacuum created by the draft inducer motor to ensure the venting system is clear of obstructions before the ignition sequence begins

Is this switch compatible with other manufacturer brands

Lennox 21709 Blower Wheel 30067439-890 This current relay is specificallyThe 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