Nortek SD Series User Manual
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Nortek SD Series User Manual

Ultra-low nox, single stage, condensing gas furnace
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USER'S MANUAL
*SD SERIES ULTRA-LOW NOX, SINGLE STAGE, CONDENSING GAS FURNACE
This product complies with SJVAPCD 4905 and SCAQMD 1111 with NOx levels below 14 ng/J when operated on natural gas.
FIRE OR EXPLOSION HAZARD
• Failure to follow safety warnings exactly could
result in serious injury 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.
UPFLOW / HORIZONTAL FURNACE
WARNING
• Do not try to light any appliance.
• Do not touch any electrical switch; do not use
• Leave the building immediately.
• Immediately call your gas supplier from a
• If you cannot reach your gas supplier, call the
WHAT TO DO IF YOU SMELL GAS
any phone in your building.
neighbors phone. Follow the gas suppliers
instructions.
fire department.
95% AFUE

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  • Page 1 USER’S MANUAL *SD SERIES ULTRA-LOW NOX, SINGLE STAGE, CONDENSING GAS FURNACE 95% AFUE UPFLOW / HORIZONTAL FURNACE This product complies with SJVAPCD 4905 and SCAQMD 1111 with NOx levels below 14 ng/J when operated on natural gas. WARNING WHAT TO DO IF YOU SMELL GAS FIRE OR EXPLOSION HAZARD •...
  • Page 2 TABLE OF CONTENTS IMPORTANT SAFETY INFORMATION ................... 3 GAS SUPPLY & PIPING ..............................3 FILTER ..................................3 FLOOD DAMAGE.................................3 VENTING SYSTEM ..............................4 SOURCES OF CORROSION ............................4 CLEARANCES TO COMBUSTIBLES ..........................4 IMPORTANT SAFETY INFORMATION ................... 4 ABOUT THE FURNACE ......................5 INTRODUCTION ................................5 FILTER ..................................5 THERMOSTAT ................................5 FURNACE LOCATION ..............................5...
  • Page 3 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 This furnace was shipped from the factory equipped situation that if not avoided, could result in personal injury or to operate on natural gas only.
  • Page 4 IMPORTANT SAFETY INFORMATION VENTING SYSTEM • Hydrochloric acid • Cements and glues • Antistatic fabric softeners WARNING: • Masonry acid washing materials It is imperative to maintain proper operation of the CAUTION: venting system, including the masonry chimney (if applicable). Insufficient venting could create This furnace requires unrestricted airflow for the production of excessive amounts of Carbon combustion and ventilation.
  • Page 5 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 STARTUP & SHUTDOWN STARTING THE FURNACE Capscrew Make sure the filter is clean and in place. Make sure the vent system is properly installed. Set the thermostat to the lowest setting. Close the manual gas valve outside the furnace. Turn off all electric to the furnace. Remove the door from the burner compartment.
  • Page 7 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 below contains suggested of dirt or lint that may have accumulated in the compartment inspections and frequency of maintenance.
  • Page 8 1032112A Specifications & illustrations subject to change without notice or incurring obligations (09/20). (Replaces 10321120) O’Fallon, MO, © Nortek Global HVAC LLC 2020. All Rights Reserved.

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