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good judgement
of the installer. Manufacturer does NOT
take
responsibility for modifications made to existing equipment.
4&
WARNING
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
im
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. Determine
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. Tum
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. Follow the 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. (Fig. 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
2223.1/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 (Direct Vent)
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
factory-built or masonry chimney. If this furnace is replacing a
previously 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
outside.
VENT AND COMBUSTION AIR PIPING
4
WARNING
CARBON MONOXIDE POISONING HAZARD
Failure to follow this warning could result in personal injury or
death.
Use
methods
described
here
to
provide
combustion
and
ventilation air.
Dual Certified (58HDX Models)
This furnace is certified as a category IV appliance. This furnace
can be installed as a direct vent furnace using outside
air for
combustion or the furnace can use air from inside the structure
for combustion. The INLET
air pipe is optional. If combustion
air comes from inside the structure, adequate make up air MUST
be provided
to compensate
for oxygen
burned.
See Confined
Space
Installation
in
the
Combustion
and
Ventilation
Air
chapter. If combustion air is drawn from outside the structure, it
MUST be taken from the same atmospheric pressure zone as the
vent pipe.
Contaminated Combustion Air
Installations in certain areas or types of structures will increase
the exposure to chemicals or halogens that may harm the furnace.
The following areas or types of structures may contain or have
exposure to the substances listed below. The installation must be
evaluated carefully as it may be necessary to provide outside air
for combustion.
¢ Commercial buildings.
¢ Buildings with indoor pools.
¢ Furnaces installed in laundry rooms.
¢ Furnaces installed in hobby or craft rooms.
¢ Furnaces installed near chemical storage areas.
¢ Permanent wave solutions for hair.
¢ Chlorinated waxes and cleaners.
¢ Chlorine based swimming pool chemicals.
¢ Water softening chemicals.
¢ De-icing salts or chemicals.
¢ Carbon tetrachloride.
¢ Halogen type refrigerants.
¢ Cleaning solvents (such as perchloroethylene).
¢ Printing inks, paint removers, varnishes, etc.
¢ Hydrochloric acid.
¢ Sulfuric Acid.
¢ Solvent cements and glues.
¢ Antistatic fabric softeners for clothes dryers.
¢ Masonry acid washing materials.
Vent and Combustion Air Piping Guidelines
This furnace
is approved
for venting with
Schedule
40 PVC,
CPVC, ABS fittings, and Cellular Core and SDR-26 PVC pipe.
12
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