|
|
|
|
Model P1
The Schebler Model P1 chimney and exhaust system is listed by Underwriters
Laboratories Inc. (UL) under file number MH17739 for use as a 1400°F
Chimney, a 1000°F Building Heating Appliance Chimney for positive
pressures to 60"WC and for Grease Duct. It also has the Underwriters
Laboratories Mark for Canada (cUL).
The system is also approved by the New York City Department of Buildings
for use in New York City. MEA #227-94-M
The Model P1 is a modular double wall prefabricated exhaust system
with 1" ceramic fiber insulation for use in venting appliances that
require a positive, neutral or negative draft exhaust system. Sections
are provided in lightweight, easy-to-handle lengths. Connections
are sealed with pressure tight draw bands and high temperature sealant.
Straight sections, expansion joints, tees, elbows and support devices
are offered, allowing a complete exhaust system to be assembled
from standard components, on site, without welding.
The model P1 Chimneys are suitable for use with Building Heating
Appliances and other low heat appliances as described in the Chimney
Selection chart of the National Fire Protection Association Standard
Number 211 which produce flue exhaust gasses not exceeding 1400°F
under continuous operation or 1800°F intermittent operation (NFPA
96 for Grease Duct). These chimneys are to be installed as per the
Schebler Co. installation instructions. They are not to be enclosed
within combustible construction. An unenclosed chimney may be placed
adjacent to walls of combustible construction at the clearances
specified.
The model P1 chimney system is available in even and odd diameters
ranging from 6" to 48" (larger diameters available upon request
up to 60" dia. and larger). A complete line of Straight Sections,
Expansion Joints, Tee's, Elbows, Rain Caps, Roof Penetration components
and support members are offered. In addition to the standard components
virtually any conceivable fitting is available as a special order
item.
The model P1 is available in a variety of materials allowing the
proper material selection for your specific application. The standard
product features a 304 stainless steel liner and an aluminized steel
outer shell. For greater corrosion resistance 316 stainless steel
is available for the liner and 304 or 316 stainless steel for the
outer shell.
For most applications the standard 304SS inner, aluminized outer
material selection is sufficient. Under the following conditions
you may consider the use of alternate materials:
Boilers firing oils heavier than # 2 use 316SS for the inner shell.
For exterior installations that are not easily accessible for periodic
painting, you should consider a 304SS outer shell that will require
no maintenance or a 316SS outer shell should be considered for corrosive
environments.
The standard material thickness for liners is 20 ga. (.035"); for
shells it is 22 ga. (.034"). Fittings larger than 24" diameter utilize
18 ga. (.048") on the shell. Pipe diameters larger than 36" utilize
18 ga. on the liners and the shells.
The model P1 has endured rigorous tests by Underwriters Laboratories.
Just a few of the tests performed are:
• Structural
Tests
The support plates
and wall supports have been physically tested to carry a load 4
times
that allowed
by our listing.
• Wind
Load Tests
Load equivalents
to 110-mph wind have been applied to the chimney with acceptable
results.
• Skin
Temperature Rise Tests
The chimney has
been subjected to a series of burn tests at temperatures up to 1800°F.
The purpose of
these tests is to determine safe clearances from the chimney outer
shell to
combustible materials.
• Rain
Tests
The rain caps
have been tested to ensure that an unsatisfactorily amount of water
does not
enter the rain
cap.
The model P1 offers some unique features that no other chimney manufacturer
can provide.
Special Parts - sometimes standard parts are unable to be used in
a complete chimney system. Schebler Fabricates all types of special
parts as needed to complete system as required.
All of our liners and shells are continuously seal welded. We do
not use spot welds on any of our seams. This assures a leak proof
joint and maximum strength. This also minimizes corrosion, adding
longevity to the stack.
Our pipe sections utilize a stiffening bead on the liners. This
bead maintains concentricity of the pipe and prevents the insulation
from settling in shipment and in operation.
We do not use captive nuts and bolts. If you have ever installed
a system that uses these types of bolts you know how difficult it
can be to align and get a nut started on a bolt, Also you do not
scrap a band if a nut gets stripped or damaged. All hardware can
be easily located at your local hardware store in case of an emergency.
Our boiler adapters include a seal ring to cover the gap between
the liner and shell. The seal ring will provide a neat and completed
appearance as well as preventing rodents and birds from entering
the area between the shells and possibly causing damage to the insulation.
Support plates and Wall supports are utilized to support the weight
of the chimney and to provide a fixed point to allow proper operation
of expansion joints. In horizontal runs supports should be placed
adjacent to fittings that are not otherwise supported. See the individual
part description for allowable support charts.
|
|
|
|
