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©

2019 Lennox Industries Inc. 

Dallas, Texas, USA

507967-01 

07/2019 

ML196UHE 

SERIES

GAS FURNACE

 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.

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 immediatly
•   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.

USER’S INFORMATION 

MANUAL

Summary of Contents for ML196UH

Page 1: ...tly 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 m...

Page 2: ...extended period of time equipment op eration must be checked periodically If this is not possible the water supply to the house should be shut off and the pipes should be drained This will prevent pro...

Page 3: ...on products into the building Check that furnace vent and air intake terminal s are not obstructed in any way during all seasons Safety Instructions 1 Keep the furnace area clear and free of combustib...

Page 4: ...ng property damage personal injury or death BEFORE PLACING THE UNIT INTO OPERATION smell all around the appliance area for gas Be sure to smell next to the floor because some gas is heavier than air a...

Page 5: ...licensed professional service technician or equivalent must annually inspect this furnace and its vent system Annually before heating season inspect furnace venting system vent cap heat exchanger and...

Page 6: ...Planned Service Annual Furnace Maintenance At the beginning of each heating season and to comply with the Lennox Limited Warranty your system should be checked as follows by a licensed professional se...

Page 7: ...tal static pressure and airflow settings are within specific operating parameters 3 Clock gas meter to ensure that the unit is operating at the specified firing rate for each stage of operation Check...

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