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SL297UHNV

SERIES

Litho U.S.A.

507761-01
02/2018
Supersedes 11/2107

E

 2018 Lennox Industries Inc.

Dallas, Texas, USA

WHAT TO DO IF YOU SMELL GAS:

Do not store or use gasoline or other
flammable vapors and liquids in the
vicinity of this or any other ap­
pliance.

Installation and service must be
performed by a qualified installer,
service agency or the gas supplier.

D

Do not try to light any appliance.

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 department.

D

Leave the building immediately.

GAS FURNACE

FIRE OR EXPLOSION HAZARD.

Failure to follow safety warnings exact­
ly could result in serious injury, death,
or property damage.

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 installer (or
equivalent), a service agency, or the gas supplier.

WARNING

Summary of Contents for SL297NV

Page 1: ...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 department D L...

Page 2: ...ment user Notice to Homeowner This furnace is equipped with safety devices that protect you and your property If one or more of these devices is activated furnace operation will stop If your home is l...

Page 3: ...The blower door must be securely in place when the blower and burners are operating Gas fumes which could contain carbon monoxide can be drawn into the living space resulting in personal injury or de...

Page 4: ...lly light The ignitor does not get hot when there is no call for heat on units with this ignition system Operating the Gas Valve Figure 3 1 STOP Read the safety information at the beginning of this se...

Page 5: ...hysically sound and without holes corrosion or blockage Vent pipe must be clear and free of obstructions and must slope upward away from the furnace Inspect the furnace return air duct connection to e...

Page 6: ...rings if ap plicable 3 Inspect all gas pipe and connections for leaks 4 Check the cleanliness of filters and change if necessary monthly 5 Check the condition and cleanliness of burners and heat excha...

Page 7: ...ure ad justment is necessary consult the Service Literature for unit specific information on adjusting gas pressure Not all gas valves are adjustable Verify correct tem perature rise CAUTION As with a...

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