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SECTION A - CODE COMPLIANCE
UNDERWRITERS LABORATORIES LISTINGS
SECURITY single wall Model DCL and double wall models DIS PRO (DIS1, DIS2. DIS4)
and DAS PRO (DAS1) venting systems are Listed by Underwriters Laboratories, Inc. (UL)
in the following product categories and in the diameters indicated:
Model DCL (Single wall)
UL-103 - Building Heating Appliance Chimney
UL-2561 - 1400° Fahrenheit Chimney (USA only)
Model DAS PRO (Double wall, 1" air insulation = DAS1)
UL-103 - Building Heating Appliance Chimney
UL-2561 - 1400° Fahrenheit Chimney
Model DIS PRO (Double wall, fiber insulation, 1" thick = DIS1, 2" thick = DIS2, 4" thick = DIS4)
UL-103 - Building Heating Appliance Chimney
UL-2561 - 1400° Fahrenheit Chimney
UL-103 HT - Building Heating Appliance Chimney(Type HT)
APPLICATION
UL 103 Building Heating Appliance Chimney Listing:
Under this category, Models DCL, DIS PRO and DAS PRO have been determined suitable
for venting flue gases at temperatures not exceeding 538°C (1000°F) under continuous
operating conditions from gas, liquid, oil or solid fuel fired appliances. Also complies
with operation (less than one hour) at temperatures not exceeding 740°C (1400°F) and
brief operation (maximum 10 minutes) at temperatures not exceeding 906°C (1700°F).
Building Heating Appliance Chimneys are suitable for use with Building Heating
Appliances and Low Heat Appliances as described in the Chimney Selection Chart of
National Fire Protection Association (NFPA) Standard NO. 211.
Building Heating Appliance Chimney (Type HT) Listing
Under this category (UL 103HT), the 5" through 24" ID DIS PRO Models has qualified
for UL's additional, optional "Type HT" rating (for Building Heating Appliance Chimneys)
which indicates they have been evaluated and found suitable for exposure to 2100°F
flue gases for a 10 minute duration at a specific clearance for each Model and diameter..
Many local, state and regional code authorities require a "Type HT" rating for chimneys
for certain appliance venting applications; especially solid fuel.
Building Heating Appliance Chimneys are suitable for use with Building Heating
Appliances and other Low Heat Appliances as described in the Chimney Selection Chart
of National Fire Protection Association (NFPA) Standard No. 211.
1400°F Chimney Listing - Under this category (UL 2561,ULC-C959), Models DCL
(in USA only - UL-2561), DIS PRO and DAS PRO have been determined suitable for
venting flue gases continuously at a temperature not exceeding 1400°F, and a 10 minute
intermittent service at temperatures not exceeding 1800°F. As such, Models DCL, DIS
PRO and DAS PRO are suitable for use with ovens and furnaces as described in the
Chimney Selection Chart of NFPA No. 211, in addition to other Applications.
Engine Exhaust
Based upon the above referenced UL Listings and supplemental, UL confirmed pressure
testing, Models DCL, DIS PRO and DAS PRO are also suitable for use as complete exhaust
systems for diesel engine and gas turbines. When Models DCL, DIS PRO and DAS PRO
is used as an engine or turbine exhaust it is intended to be installed in accordance with
NFPA 37 "Stationary Combustion Engines and Gas Turbines". This code states, "When
such (flue gas) temperatures do not exceed 1000°F (538°C) except for infrequent, brief
periods, the engines shall be classified as low heat appliances". For continuous operation
over 1000°F and not exceeding 1400°F the exhaust system should be installed as a
1400°F Chimney.
Models DAS PRO may be used to meet various needs, such as:
a) Reduce outer pipe surface temperature.
b) Reduce building heat gain by retaining energy inside the duct.
c) Increase the efficiency of energy recovery systems by reducing exhaust gas
temperature losses.
3
d) Increase chimney or exhaust system draft loss performance due to reduced
exhaust gas temperature drop.
e) Reduce building noise levels caused by high speed or pulsating exhaust
induced noise. NOTE: Specific tests have not been conducted to measure
acoustic performance.
Models DCL, DIS PRO and DAS PRO exhaust systems are intended for use in connecting
the heating appliance, engine, or turbine to the outdoors, while operating under positive
forced draft, negative induced draft or neutral gravity flow internal pressure conditions.
Models DCL, DIS PRO and DAS PRO (all insulation thicknesses) may be intermixed in
5"- 36" ID
the same chimney system, assuming the proper associated airspace clearances-to-
5"- 36"ID
combustibles are maintained.
ADDITIONAL APPLICATIONS
5"- 36" ID
Models DCL, DIS PRO and DAS PRO are also suitable for negative, neutral or positive
pressure pre-fabricated piping systems intended for use in a variety of applications
5"- 36"ID
including but not limited to the following: Fume Venting, Chutes, Particle Conveying,
Dryer Vents and Ventilation Ducts.
5"- 36" ID
SUITABLE FOR POSITIVE PRESSURE VENTING APPLICATIONS WITH MAXIMUM 60" WATER
5"- 36" ID
COLUMN INTERNAL STATIC PRESSURE AT 1000 DEGREES F.
5"- 24"ID
MULTI-ENGINE EXHAUSTS
A common exhaust system for multiple engine or turbine installations is generally
not recommended. Check with your engine or turbine manufacturer prior to common
exhaust system design. Exhaust gas from operating units tends to flow to non-operating
units where condensation may form. Water in engine or turbines at start-up may cause
damage. In general, a separate exhaust system should be provided for each engine or
turbine.
SECTION B - GENERAL INFORMATION
PART NUMBERS
These instructions identify major model parts by name and part number.
Example:
DIS1 36" length with inside diameter 14" made of SS inner liner and SS 304 outer
casin: Code = DIS1-14L36BC.
DIS1-
Model
DAS1 30° elbow with inside diameter 22" made of 304 inner flue and galvalume outer
casing: Code = DAS1-22E30CE.
DAS1-
Model
DCL wall support for 8" diameter grease duct made of galvalume: Code = DCL8WSE:
DCL
Model
Use only factory-supplied components. Failure to do so will void the
certification and the warranty of the chimney system.
EFFECTIVE LENGTH AND THICKNESS
The effective length is the length of the part when it is assembled.
Effective length
L36 ................36 1/16"
L24 ................24 1/16"
L18 ................17 9/16"
L12 ................11 9/16"
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
14
L36
BC
Dia. Part
Material
22
E30
CE
Dia. Part
Material
8
WS
E
Dia
Part
Material
Thickness for Ø5 to Ø36
Inner Wall: ................. 0.035"
Outer Wall: ................ 0.024"
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