background image

©

2017 Lennox Industries Inc. 

Dallas, Texas, USA

506733-01 

10/2017 

Supersedes 10/2012 

ML180UHE 

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 immediately

• 

 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 ML180UHE

Page 1: ...ings 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...

Page 2: ...on will stop If your home is left unattended for an extended period of time equipment operation must be checked periodically If this is not possi ble the water supply to the house should be shut off a...

Page 3: ...as pressure and gas flow rate adequate combustion air and proper venting WARNING Asphyxiation Hazard The exhaust vent for this furnace must be leak free and must be securely connected to the furnace f...

Page 4: ...try to light the burners by hand 5 Remove the access panel 6 Move switch on gas valve to OFF Do not force See figure 2 7 Wait five minutes to clear out any gas If you then smell gas STOP Immediately c...

Page 5: ...n inspect furnace venting system vent cap heat exchanger and burners for corro sion deterioration or deposits of debris Remove any ob structions Inspect the furnace venting system to make sure it is i...

Page 6: ...or 2 Check the condition of the belt and shaft bearings if applicable 3 Inspect all gas pipe and connections for leaks 4 Check the cleanliness of filters and change if necessary monthly 5 Check the co...

Page 7: ...innocently stored next to the furnace may obstruct the combustion air supply This could cause incomplete combustion and the produc tion of carbon monoxide gas Repair Parts List The following repair pa...

Reviews: