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Nortek VG7SD - User Manual

Nortek VG7SD
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SINGLE STAGE & TWO-STAGE GAS FURNACES
USER’S MANUAL
NON-CONDENSING GAS FURNACES
CONDENSING GAS FURNACES
80+ AFUE 92.1% AFUE 95% & Up to 96% AFUE
*SA Upflow / Horizontal
Furnaces
*SC Upflow / Horizontal
Furnaces
*SD, *SD-E, & *TC
Upflow / Horizontal Furnaces
& *TE Furnaces (Upflow only)
*SK Downflow
Furnaces
*SL Downflow
Furnaces
*SM, *TL, *TN
Downflow Furnaces
WARNING
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.
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.
DO NOT DESTROY. PLEASE READ CAREFULLY & KEEP IN A SAFE PLACE FOR FUTURE REFERENCE.

Table of Contents

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Questions and Answers

  • M
    Mrs. Elizabeth GardnerNov 3, 2025
    What to do if my Nortek VG7SD fails to operate?
    • M
      Melissa WilsonNov 3, 2025
      If your Nortek Furnace fails to operate, start by ensuring the thermostat is operating properly. Also, check if the blower compartment door(s) are securely in place and that the furnace disconnect is closed. Verify that the circuit breaker hasn't tripped or the control board fuse hasn't burned open, and that the gas supply is turned on. Inspect for any open manual reset switches and ensure the filter isn't dirty or plugged. Clean a coated flame sensor with steel wool, check for blockage in the condensate drain switch, make sure the secondary heat exchanger is free of debris and clogs, and ensure the evaporator coil is clean. Finally, check if all the LEDs on the furnace and motor control boards are constantly ON, and check the Blower Limit Switch and Flame Rollout Switch, resetting them if...

Summary

Important Safety Information

Gas Supply and Piping Safety

Instructions on handling gas leaks, installation by qualified technicians, and manual ignition prohibition.

Filter Requirements

Flood Damage Precautions

Venting System and Corrosion Safety

Venting System Safety

Importance of proper venting to prevent carbon monoxide production and associated health risks.

Clearances to Combustibles

Warning to keep furnace areas clear of combustible materials to prevent fire or explosion.

Startup and Shutdown Procedures

Starting the Furnace

Step-by-step guide for safely starting the furnace, including filter check, gas valve operation, and thermostat setting.

Shutting Down the Furnace

Instructions for safely shutting down the furnace for maintenance or service, emphasizing gas valve shutoff before electrical.

Troubleshooting Common Issues

Checklist for common furnace operational problems, including thermostat, doors, circuit breakers, and filter status.

Nortek VG7SD Specifications

General IconGeneral
BrandNortek
ModelVG7SD
CategoryFurnace
LanguageEnglish

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