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CARBON MONOXIDE POISONING HAZARD
Failure to follow the steps outlined
below for each
appliance
connected
to the venting
system being
placed
into
operation,
could
result
in carbon
monoxide
poisoning
or death:
The
following
steps
shall
be followed
for
each
appliance
connected
to the venting
system
being
placed
into
operation,
while
all other
appliances
connected
to
the
venting
system
are
not
in
operation:
1. Seal any unused
openings
in the venting
system.
2. Inspect
the venting
system
for proper
size and horizontal
pitch, as required
in the National
Fuel
Gas Code, ANSI
Z223,1/NFPA
54 or CSA
B149,
1, Natural
Gas
and
Propane
Installation
Code and these
instructions.
Deter-
mine that there
is no blockage
or restriction,
leakage,
corrosion
and other
deficiencies
which
could cause
an
unsafe
condition.
3. As far as practical,
close all building
doors
and windows
and all doors
between
the space in which the appliance(s)
connected
to the venting
system
are located
and other
spaces
of the building.
4. Close
fireplace
dampers.
5. Turn on clothes
dryers
and any appliance
not connected
to the venting
system.
Turn on any exhaust
fans, such as
range
hoods
and
bathroom
exhausts,
so
they
are
operating
at maximum
speed.
Do not operate
a summer
exhaust
fan.
6. Followthe
lighting
instructions.
Place the appliance
being
inspected
into
operation.
Adjust
the
thermostat
so
appliance
is operating
continuously.
7. Test for spillage
from draft hood equipped
appliances
at
the draft hood relief opening
after 5 minutes
of main burner
operation.
Use the flame of a match or candle.
(Figure
6)
8. If improper
venting
is observed,
during
any of the above
tests,
the
venting
system
must
be
corrected
in
accordance
with
the
National
Fuel
Gas
Code,
ANSI
Z223,1/NFPA
54 and/or
CSA B149. 1, Natural
Gas and
Propane
Installation
Code.
9. After
it
has
been
determined
that
each
appliance
connected
to the venting
system
properly
vents
when
tested
as outlined
above,
return doors,
windows,
exhaust
fans, fireplace
dampers
and any other gas-fired
burning
appliance
to their previous
conditions
of use.
For Two Pipe Installation
This furnace
can NOT be common
vented
or connected
to any
type B, BW or L vent or vent connector,
nor to any portion
of a facto-
ry-built
or masonry
chimney.
If this furnace
is replacing
a previous-
ly common-vented
furnace,
it may be necessary
to resize
the
existing
vent and chimney
to prevent
oversizing
problems
for the
other remaining
appliance(s).
See
"Venting
and Combustion
Air
Check"in
this section,
This furnace
MUST
be vented
to the out-
side.
4. Vent and Combustion
Air Piping
CARBON MONOXIDE POISONING HAZARD.
Failure
to properly
vent this
furnace
could
result
in
death
and/or
personal
injury.
Use methods
described
here to provide
combustion
and ventilation
air.
Single Pipe (N9MP1 Models)
This furnace
is certified
as a category
[V appliance.
This furnace
requires
ventilation
openings
to provide
air for proper
combustion
and ventilation
of flue gases.
All duct or openings
for supplying
combustion
and ventilation
air must comply
with the gas codes or
in absence
of local codes,
the applicable
national
codes.
When the installation
is complete,
see the" Venting
and Combus-
tion
Air
Che¢l_'
in this manual.
Direct Vent (N9MP2 Models)
This furnace
is certified
as a category
]V appliance.
This furnace
uses outside
air for combustion
ONLY, it MUST
be taken from the
same atmospheric
pressure
zone as the vent pipe.
See Confined
Space
Installation
in the Combustion
and Ventilation
Air in this
manual.
Dual Certified (*9MPD Models)
This furnace
is certified
as a category
]V appliance.
This furnace
can be installed
as a direct vent furnace
using outside
air for com-
440 01 1020 04
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