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Gas-Fired Vented
FLOOR FURNACE
INSTALLATION AND
OPERATING INSTRUCTIONS
P/N 74521
REV. 08/97
MODEL NUMBERS
MILLIVOLT CONTROL SYSTEM
NATURAL GAS 90N30A 90N50A 90N65A 90N75A
WARNING: If the information in this manual is not followed
exactly, a fire or explosion may result causing property
damage, personal injury or loss of life.
- Do not store or use gasoline or other flammable vapors and
liquids in the vicinity of this or any other appliance.
- 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.
• 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.
- INSTALLATION AND SERVICE MUST BE PERFORMED
BY A QUALIFIED INSTALLER, SERVICE AGENCY OR
THE GAS SUPPLIER.
The coating selected to provide
longer life to the heat exchanger
may smoke slightly upon initial
firing. Please provide adequate
ventilation if this occurs.
WARNING: Operation of this furnace when not connected to a properly installed
and maintained venting system can result in Carbon Monoxide (C.O.) poisoning
and possible death. For your safety, this furnace and the venting system should
be inspected at least annually by a qualified service person.
THIS UNIT IS NOT APPROVED FOR INSTALLATION IN MOBILE HOMES,
GREENHOUSES, OR ENVIRONMENTS INVOLVING DUSTY, WET, CORROSIVE, OR
EXPLOSIVE CONDITIONS. SUCH CONDITIONS WILL INVALIDATE THE WARRANTY
AND MAY CREATE UNSAFE CONDITIONS.
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