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Common Questions Which Armstrong models use the A22339-1 gasket
reducing the need to carry multiple fixed-temperature switches in the field
Always check the flue gas path and perform a draft test before putting the unit back into service
018" orifice and a 1/4" compression fitting
simplifying field mounting and maintenance
Lennox 98M74 Blower Wheel Els PW 17895 Common Questions Which Armstrong modelsThe Lennox 98M74 Blower Wheel is a high performance direct replacement for R02592A004, engineered for heavy duty HVAC blower motor assemblies found in residential furnaces and air handlers. This OEM Lennox blower wheel measures 10 inches in diameter by 6. 5 inches in width with a 1 2 inch bore size, designed specifically for a clockwise (CW) rotation. When performing a furnace blower wheel replacement, precision balance is critical to prevent