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8 - INSTALLATION - Vent & combustion air
8.6 - Air inlet pipe
materials
WARNING!!! The air inlet
pipe(s) must be sealed. Improper
sealed can result in excessive levels
of carbon monoxide which can result
in severe personal injury or death!
Choose acceptable combustion air
inlet pipe materials from the following
list:
- PVC, CPVC or ABS Dryer Vent
or Sealed Flexible Duct (not
recommended for rooftop air inlet)
- Galvanized steel vent pipe with joints
and seams sealed as specifi ed in this
section.
- Type “B” double-wall vent with joints
and seams sealed as specifi ed in this
section.
- AL29-4C, stainless steel material
to be sealed to specifi cation of its
manufacturer.
- Polypropylene material to be sealed
to specifi cation of its manufacturer.
NOTICE! PVC, CPVC, ABS Dryer
Vent and stainless steel pipe may
require an adapter (not provided)
to transition between the air inlet
connection on the appliance and the
air inlet pipe
WARNING!!! Using vent or air
intake materials other than those
specifi ed, mixing the specifi ed
materials, failure to properly seal all
seams and joints or failure to follow
the manufacturer’s instructions can
result in personal injury, death or
property damage.
NOTICE The use of double-wall
vent or insulated material for
the combustion air inlet pipe is
recommended in cold climates to
prevent the condensation of airborne
moisture in the incoming combustion
air.
8.6.1 - Sealing of Type
“B” double-wall or
galvanized air inlet pipe
material
Sealing of Type “B” double-wall or
galvanized air inlet pipe material used
for air inlet piping on a sidewall or
vertical rooftop Combustion Air Supply
System:
a. Seal all joints and seams of the air
inlet pipe using either Aluminum
Foil Duct Tape meeting UL
Standard 723 or 181A-P or a high
quality UL Listed silicone sealant.
b. Do not install seams of vent pipe on
the bottom of horizontal runs.
c. Secure all joints with a minimum
of three sheet metal screws or
pop rivets. Apply Aluminum Foil
Duct Tape or silicone sealant to
all screws or rivets installed in the
pipe.
d. Ensure that the air inlet pipes are
properly supported.
WARNING!!! Failure to properly
seal all joints and seams as required
in the air inlet piping may result in
fl ue gas recirculation, spillage of
fl ue products and carbon monoxide
emissions causing severe personal
injury or death.
8.6.2 - Sealing of PVC,
CPVC or ABS air inlet
pipe
The PVC, CPVC, or ABS air inlet pipe
should be cleaned and sealed with the
pipe manufacturer’s recommended
solvents and standard commercial
pipe cement for the material used.
The PVC, CPVC, ABS Dryer Vent or
Flex Duct air inlet pipe should use a
silicone sealant to ensure a proper
seal at the appliance connection and
the air inlet cap connection. Dryer
vent or Flex Duct should use a screw
type clamp to seal the pipe to the
appliance air inlet and the air inlet
cap. Proper sealing of the air inlet
pipe ensures that combustion air will
be free of contaminants and supplied
in proper volume.
When a sidewall or vertical rooftop
combustion air supply system is
disconnected for any reason, the air
inlet pipe must be resealed to ensure
that combustion air will be free of
contaminants and supplied in proper
volume.
WARNING!!! Failure to properly
seal all joints and seams as required
in the air inlet piping may result in
fl ue gas recirculation, spillage of
fl ue products and carbon monoxide
emissions causing severe personal
injury or death.
Содержание Peerless Combi 160
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