Lennox International Inc. G50UH-48B-090 User Manuals

Table of Contents

• 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 & 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
• High Altitude Information

  27
• Other Unit Adjustments

  27
• Service

  28
• Repair Parts List

  30
• Ignition Control Board Diagnostic Codes

  30
• Troubleshooting

  31
• Start-Up & Performance Check List

  35
• LIMIT COMBUSTION AIR _ 24A-045 fELLOW RED

  3