COUNTERFLOW
WALL FURNACE
INSTALLATION AND
OPERATING INSTRUCTIONS
P/N 78111
REV. 03/05
24 VOLT SYSTEM NATURAL GAS CF353C-H CF503C-H CF653C-H
WITH LOW-BTU
PILOT
L.P. GAS CF354C-H CF504C-H CF654C-H
MODEL NUMBERS
24 VOLT SYSTEM
NATURAL GAS CF357C-H CF557C-H
WITH INTERMITTENT
IGNITION (I.I.D.)
L.P. GAS CF358C-H CF558C-H
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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:
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Do not try to light any appliance.
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Do not touch any electrical switch; do not use any phone in
your building.
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Immediately call your gas supplier from a neighbor’s phone.
Follow the gas supplier’s instructions.
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If you cannot reach your gas supplier, call the fire department.
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INSTALLATION AND SERVICE MUST BE PERFORMED
BY A QUALIFIED INSTALLER, SERVICE AGENCY OR
THE GAS SUPPLIER.
WARNING: Operation of this furnace when not connected to a properly installed and main-
tained 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 quali-
fied service person.
The coating selected to provide longer life to the heat exchanger may smoke slightly upon initial firing. Please
provide adequate ventilation if this occurs.
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.
This appliance is equipped
with a blocked flue switch
designed to protect against
improper venting of
combustion products.
THIS UNIT IS NOT TO
BE INSTALLED IN
MOBILE HOMES.
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.
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