Lennox International Inc. - G50UH-48C-110
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GAS FURNACE 505 254M 8 2006 Supersedes 504 957M Technical Publications Lithe U S A Unit Dimensions 2 G50UH X Parts Arrangement 3 G50UH X Gas Furnace 4 Shipping and Packing List 4 Safety Information 4 General 5 Combustion Dilution amp Ventilation Air 6 Setting Equipment 8 Filters 12 Duct System 12 Venting 12 Gas Piping 20 Electrical 21 Unit Start Up 25 Gas Pressure Adjustment 26 Fligh Altitude Information 27 Other Unit Adjustments 27 Service 28 Inc INSTALLATION INSTRUCTIONS G50UH X Series RETAIN THESE INSTRUCTIONS FOR FUTURE REFERENCE Repair Parts List ignition Control Board Diagnostic Codes Troubleshooting Start Up amp Performance Check List 30 30 31 35 AWARNING ...