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E 2001 Lennox Industries Inc.
Dallas, Texas, USA
504,322M
4/2001
Do not store or use gasoline or other flam
mable vapors and liquids in the vicinity of
this or any other appliance.
Installation and service must be performed by
a qualified installer, service agency or the gas
supplier.
04/01
*2P0401*
WARNING
If the information in this manual is not followed
exactly, a fire or explosion may result causing
property damage, personal injury or loss of
life.
WHAT TO DO IF YOU SMELL GAS:
D Do not try to light any appliance.
D Extinguish any open flames.
D Do not touch any electrical switch; do not use any
phone in your building.
D Immediately call your gas supplier from a neighbor's
phone. Follow the gas supplier's instructions.
D If you cannot reach your gas supplier, call the fire de
partment.
G40DF(X)
SERIES
GAS FURNACE
Litho U.S.A.
504,322M
*P504322M*
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Summary of Contents for Lennox G40DF(X) Series
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Page 1: Gas Furnace
Click in the top of this page to see online articles about heating system inspection, diagnosis, and repair at InspectAPedia.com E 2001 Lennox Industries Inc. Dallas, Texas, USA G40DF(X) 504,322M 4/2001 SERIES GAS FURNACE Litho U.S.A. WARNING If the information in this manual is not followed... - Page 2 Lennox Industries Inc. CAUTION P.O. Box 799900 Dallas, TX 75379-9900 Before attempting to perform any service or mainte...
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Page 3: Important Directions
Improper installation, adjustment, alteration, service or maintenance can cause property damage, person of this, Lennox recommends the use of a carbon monox al injury or loss of life. Installation and service must ide detector in your home, even if you do not own gas be performed by a qualified installer, service agency appliances. - Page 4 The gas valve on the G40DF(X) will be equipped with ei White Rodgers 36E Series Gas Valve ther a gas control knob or lever. Use only your hand to turn the gas control knob or push the gas lever. Never use tools.
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Page 5: Service Reminder
Service Reminder This unit is not equipped with a filter or rack. A field-pro Call your Lennox service technician if the unit will not oper vided high-velocity filter is required for the unit to operate ate. Before calling, always check the following to be sure properly. -
Page 6: Planned Service
Return air duct - Must be properly attached and provide Planned Service an air seal to the unit. You should expect a service technician to check the follow ing items during an annual inspection. Power to the unit Operating performance - Unit must be observed during must be shut off for the service technician's safety.