4
CLEARANCES TO COMBUSTIBLES
The furnace is designed to have certain clearances to
combustible items such as wood, paper, etc. Some types
of insulation are combustible. If your furnace is installed
in an attic, near unfinished walls, or in other insulated
space, keep area surrounding the furnace free of insulating
material. See Figure 1,(page4) below.
This furnace does not have a pilot. It is equipped with an
ignition device which automatically lights the burner. DO
NOT light the burner by hand.
VENTING SYSTEM
• For proper and safe operation, this furnace requires
unrestricted airflow for combustion and ventilation.
Do not block or obstruct air openings on the furnace,
air openings around the furnace area or the spacings
around the furnace.
• Air openings on the top or front of the furnace and
openings in closet doors or walls must never be
restricted. If the furnace is operated without adequate
air for combustion, the flame roll-out switch will open,
turning off the gas supply to the burners. This indicates
that a serious problem with the burners has occurred
and must be corrected immediately. Only a licensed
HVAC technician can reset this switch.
• Yourfurnaceanditsventingsystemshouldbeinspected
annually by a licensed HVAC technician. The filter
should be inspected at least once a month. See the
Maintenance Information on page 6.
• Beforeyouremodelaroomnearthefurnace,consult
with a local code official or the National Fuel Gas Code
to make sure you will be in compliance with supplying
adequate air for combustion. By erecting new walls,
it is sometimes possible to inadvertently restrict the
furnace’s air supply. You can find more information
about supplying combustion air in the NFGC, which is
available at many libraries.
SHUTTING DOWN THE FURNACE
If you need to shut down your furnace for service or
maintenance, shut off the gas valve to the furnace before
shutting off the electrical service. Remove the door panel
from the front of the furnace and turn the gas valve OFF.
See Figure 2, (page 7). Additional instructions for
shutting down the furnace can be found on page 7.
If your installation has a manual gas shutoff valve on the
gas supply pipe, shut this off, then shut off the electric
to the furnace.
IMPORTANT SAFETY INFORMATION
CLEARANCES TO COMBUSTIBLE MATERIALS*
LEFT
SIDE
FRONT
RIGHT
SIDE
REAR
RIGHT
SIDE
MODELS WITH FRONT AIR RETURN MODELS WITH TOP AIR RETURN
REAR
LEFT
SIDE
FRONT
VENT
VENT
Sides....................... 0 Inches
Front ........................1 Inch
Top ..........................6 Inches
Rear ........................ 0 Inches
Vent ........................ 0 Inches
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