Oxbox J801X U Series User Manual

Oxbox J801X U Series User Manual

Single stage & two-stage gas furnaces

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SINGLE STAGE & TWO-STAGE GAS FURNACES
USER'S MANUAL
NON-CONDENSING GAS FURNACES
(United States Only)
J801X*U Upflow / Horizontal Furnace
J801X*D Downflow Furnace
FIRE OR EXPLOSION HAZARD
• Failure to follow safety warnings exactly could
result in serious injury, death or property
damage.
• Installation and service must be performed by
a qualified installer, service agency or the gas
supplier.
• Do not store or use gasoline or other flammable
vapors and liquids in the vicinity of this or any
other appliance.
DO NOT DESTROY. PLEASE READ CAREFULLY & KEEP IN A SAFE PLACE FOR FUTURE REFERENCE.
80+ AFUE
CONDENSING GAS FURNACES
J951X*U & J952V*U Upflow / Horizontal Furnace
J951X*D & J962V*D Downflow Furnace
WARNING
WHAT TO DO IF YOU SMELL GAS
• Do not try to light any appliance.
• Do not touch any electrical switch; do not use
any phone in your building.
• Leave the building immediately.
• Immediately call your gas supplier from a
neighbors phone. Follow the gas suppliers
instructions.
• If you cannot reach your gas supplier, call the
fire department.
95% & Up to 96% AFUE

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Summary of Contents for Oxbox J801X U Series

  • Page 1 SINGLE STAGE & TWO-STAGE GAS FURNACES USER’S MANUAL NON-CONDENSING GAS FURNACES CONDENSING GAS FURNACES 80+ AFUE 95% & Up to 96% AFUE (United States Only) J801X*U Upflow / Horizontal Furnace J951X*U & J952V*U Upflow / Horizontal Furnace J801X*D Downflow Furnace J951X*D &...
  • Page 2: Table Of Contents

    TABLE OF CONTENTS IMPORTANT SAFETY INFORMATION ........................ 3 GAS SUPPLY & PIPING ............................ 3 FILTER ................................3 FLOOD DAMAGE ............................... 3 IMPORTANT SAFETY INFORMATION ........................ 4 VENTING SYSTEM ............................4 SOURCES OF CORROSION ..........................4 CLEARANCES TO COMBUSTIBLES ........................ 4 ABOUT THE FURNACE ............................
  • Page 3: Important Safety Information

    IMPORTANT SAFETY INFORMATION Safety markings are used frequently throughout this manual WARNING: to designate a degree or level of seriousness and should not be ignored. WARNING indicates a potentially hazardous The furnace was shipped from the factory equipped situation that if not avoided, could result in personal injury or to operate on natural gas.
  • Page 4: Important Safety Information

    IMPORTANT SAFETY INFORMATION VENTING SYSTEM • Cleaning solvents (perchloroethylene) • Printing inks, paint removers, varnishes, etc. • Hydrochloric acid WARNING: • Cements and glues • Antistatic fabric softeners It is imperative to maintain proper operation of the • Masonry acid washing materials venting system, including the masonry chimney (if applicable).
  • Page 5: About The Furnace

    ABOUT THE FURNACE INTRODUCTION • Condensate must flow freely during furnace operation. The homeowner must make sure the condensate drain Congratulations on the purchase on your new furnace! lines do not become blocked, pinched or crushed. With our dedication to quality, superior reliability, and •...
  • Page 6: Component Locations For Single Stage Furnaces

    COMPONENT LOCATIONS FOR SINGLE STAGE FURNACES Main Air Blower Assembly Limit Switch (behind blower panel) Furnace Control Furnace Board Control Inducer Board Assembly Gas Valve Blower Pressure Transformer Door Switch Switch Transformer (behind blower panel) Flame Sensor Pressure Igniter Switch Manifold Blower Door...
  • Page 7: Component Locations For Two-Stage Furnaces

    COMPONENT LOCATIONS FOR TWO-STAGE FURNACES Finish Finish Burner Flange Flange Assembly Flame Roll-Out Blower Assembly Furnace Sensor Switch (behind blower panel) Control Manifold Board Inducer Motor Choke Pressure Igniter Switches (C & D cabinets only) Motor Gas Valve Control Main Air Blower Board Limit Switch...
  • Page 8: Maintenance & Inspection

    MAINTENANCE & INSPECTION FURNACE & AIR DUCTS BLOWER & FILTER • The furnace should be inspected annually by a licensed • It is recommended that the blower compartment be cleaned HVAC technician. Table 1 (page 9) contains suggested of dirt or lint that may have accumulated in the compartment inspections and frequency of maintenance.
  • Page 9 FREQUENCY OF MAINTENANCE MAINTENANCE ITEMS BEGINNING OF EACH END OF EACH MONTHLY HEATING SEASON HEATING SEASON Verify furnace area is free of combustible materials. Verify combustion and ventilation air is not restricted. Verify no signs of physical deterioration of the furnace. Verify no obstructions or restrictions in vent or chimney.
  • Page 12 10270340 (NEW) (02/20)

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