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 WARNING

Do not set thermostat below 60°F (16°C) in heating 

mode. Setting thermostat below 60°F (16°C) reduces 

the number of heating cycles. Damage to the unit may 

occur that is not covered by the warranty.

 WARNING

If overheating occurs or if gas supply fails to shut off, 

shut off the manual gas valve to the furnace before 

shutting off electrical supply.

 WARNING

Do not use this furnace if any part has been underwater. 

A  flood-damaged  furnace  is  extremely  dangerous. 

Attempts  to  use  the  furnace  can  result  in  fire  or 

explosion. Immediately call a licensed professional 

service technician (or equivalent) to inspect the furnace 

and to replace all gas controls, control system parts, 

and electrical parts that have been wet or to replace the 

furnace, if deemed necessary.

.

 NOTICE

Any additions, changes, or conversions required in order 

for the appliance to satisfactorily meet the application 

needs must be made by a licensed professional installer 

(or  equivalent)  using  factory-specified  and  approved 

parts.

 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

CARBON MONOXIDE POISONING HAZARD

Failure to follow instruction could result in severe personal 

injury or death due to carbon monoxide poisoning, if 

combustion products infiltrate into the building.
Check that all openings in the outside wall around 

the vent (and air intake) pipe(s) are sealed to prevent 

infiltration  of  combustion  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 combustible 

material,  gasoline,  and  other  flammable  vapors 

and liquids. If it is installed in an insulated area, the 

furnace must be kept free of insulating material. 

Insulating material may be combustible.

2 -   After any heavy snow, ice or frozen fog event, the 

furnace vent pipes may become restricted. Always 

check the vent system and remove any snow or ice 

that may be obstructing the plastic intake or exhaust 

pipes.

3 -   

DO NOT 

obstruct air flow to unit. Unit must receive 

an unobstructed flow of combustion and ventilating 

air. DO NOT block or obstruct air openings on 

the furnace or air openings to the area in which 

the furnace is installed. Take care to maintain 

established clearances surrounding the furnace.

4 -   

DO NOT 

store  chlorine  or  fluorine  products  near 

unit or introduce these products into the combustion 

air. These products can cause furnace corrosion.

5 -   

DO NOT 

draw return air from a room where this 

furnace,  or any other gas appliance (ie., a water 

heater), is installed. When return air is drawn from a 

room, a negative pressure is created in the room. If 

a gas appliance is operating in a room with negative 

pressure, the flue products can be pulled back down 

the vent pipe and into the room. This reverse flow 

of the flue gas may result in incomplete combustion 

and the formation of carbon monoxide gas. This 

toxic gas might then be distributed throughout the 

house by the furnace duct system.

 WARNING

Blower access panel must be securely in place when 

blower and burners are operating. Gas fumes, which 

could contain carbon monoxide, can be drawn into living 

space resulting in personal injury or death.

Содержание ML195UH

Страница 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...

Страница 2: ...quipment 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 prob lems associated with a...

Страница 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...

Страница 4: ...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 and will settle on the floor...

Страница 5: ...mited warranty a 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 he...

Страница 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...

Страница 7: ...ating parameters 3 Clock gas meter to ensure that the unit is operating at the specified firing rate for each stage of operation Check the supply pressure and the manifold pressure on both low fire an...

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