USER’S INFORMATION
MANUAL
©2017 Lennox Industries Inc.
Dallas, Texas, USA
507650-01
10/2017
SL280UHNV
SERIES
WARNING
Improper installation, adjustment, alteration, service
or maintenance can cause property damage, personal
injury or loss of life. Installation and service must be
performed by a licensed professional HVAC installer or
equivalent, service agency, or the gas supplier.
WARNING
FIRE OR EXPLOSION HAZARD.
Failure to follow safety warnings exactly
could result in serious injury, death, or
property damage.
Do not store or use gasoline or other flammable
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.
• Do not try to light any appliance.
• Do not touch any electrical switch; do not
• use any phone in your building.
• Immediately call your gas supplier from a
• neighbor’s phone. Follow the gas supplier’s
• instructions.
• If you cannot reach your gas supplier, call
• the fire department.
WHAT TO DO IF YOU SMELL GAS:
