M&G DuraVent DuraStack PRO DCL User manual

NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
Listed to standards:
UL-103
UL-103HT
ULC-S604
ULC-C959
INSTALLATION AND
MAINTENANCE INSTRUCTIONS
Factory-Built Chimney
  •BoilerStack
  •EngineExhaust
DuraStack PRO
MODELS DCL, DAS1, DIS1, DIS2, DIS4
DCL:SingleWall
DAS1: Air Insulated
DIS1, DIS2, DIS4: A.E.S Refractory wool Insulation
This installation manual will enable you to obtain a safe, efficient
and dependable installation of this chimney system. Please read
andunderstandtheseinstructionsbeforebeginningyourinstallation.
Do not alter or modify the components of this chimney system under any
circumstances. Any modification or alteration of the chimney system
or approved accessories, including but not limited to the appliance
it is  connected to, may void the warranty, listings and approvals of
thissystemandcouldresultin an unsafeandpotentiallydangerous
installation.
SAVE THESE INSTRUCTIONS
FOR FUTURE REFERENCE
WARNINGS
FAILURE TO FOLLOW THESE INSTALLATION
INSTRUCTIONS COULD CAUSE FIRE, CARBON
MONOXIDE POISONING, OR DEATH. IF YOU ARE
UNSURE OF INSTALLATION REQUIREMENTS, CALL
THE PHONE NUMBER LISTED ON THE BACK OF
THESE INSTRUCTIONS.
A MAJOR CAUSE OF CHIMNEY RELATED FIRE IS
FAILURE TO MAINTAIN REQUIRED CLEARANCES
(AIR SPACES) TO COMBUSTIBLE MATERIALS. IT
IS OF UTMOST IMPORTANCE THAT THIS GREASE
DUCT BE INSTALLED ONLY IN ACCORDANCE WITH
THESE INSTRUCTIONS.
PIDuraStackPROREV.0005/2016
MH10971

2
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
TABLE OF CONTENTS
INTRODUCTION ..................................................................... 2
SECTION A - CODE COMPLIANCE ......................................... 3
LISTING .............................................................................. 3
CLASSIFICATION .................................................................. 3
APPLICATION ...................................................................... 3
MULTI-ENGINE EXHAUSTS ................................................... 3
SECTIONB-GENERALINFORMATION ............................... 3
PART NUMBERS .................................................................. 3
EFFECTIVE LENGTH AND THICKNESS.................................... 3
CLEARANCE......................................................................... 4
OPENING THROUGH CONSTRUCTION.................................... 4
SYSTEM SIZING ................................................................... 4
PRODUCT INSPECTION ........................................................ 5
FREIGHT DAMAGE ............................................................... 5
PROPER STORAGE .............................................................. 5
PRODUCT WEIGHTS ............................................................ 5
THERMAL EXPANSION CALCULATIONS ................................ 5
SUPPORT METHODS AND HEIGHT LENGTHS ........................ 5
EXTERIOR CORROSION PROTECTION ................................... 7
SIESMIC REQUIREMENTS..................................................... 7
SECTIONC-PIPEANDFITTINGASSEMBLY........................ 8
Special Feature ................................................................... 8
Joint Assembly ................................................................... 8
Sealant Usage ..................................................................... 9
SECTION D - COMPONENTS ................................................. 10
ODD LENGTH AND EXPANSION HIGH PRESSURE SYTEM ...... 10
Bellow Length (LB) ..................................................... 10
Adjustable Length (LA) ................................................ 11
Variable Length (LV) ................................................... 13
TEES ................................................................................... 16
90° Tee (T90)............................................................... 16
45° Tee (T45) and Double 45° Tee (TD45) .................... 16
Lateral Tee (BT)............................................................ 16
Tee Cap (TC) . .............................................................. 17
Drain Tee Cap (DTC) .................................................... 17
ELBOW ............................................................................... 18
Elbows (E3, E15, E30, E45, E90)................................... 18
INCREASERS AND REDUCERS .............................................. 19
Tapered Increaser (TINØ) ............................................. 19
Eccentric Tapered Increaser (ETINØ) ............................ 19
Step Increaser (INØ) .................................................... 19
PLATE AND WALL SUPPORTS ............................................... 20
Anchor Plate (AP) ......................................................... 20
Anchor Plate with Length (APL) .................................... 21
Heavy Duty Wall Support (WSHD) ................................. 22
Heavy Duty Wall Guide (WGHD) ................................... 22
Heavy Duty Floor Guide (FGHD) . .................................. 22
Full Angle Ring (FAR).................................................... 22
Half Angle Ring (HAR)................................................... 22
SECTION E - LOCATION OF SUPPORTS ............................... 23
ADJUSTABLE AND VARIABLE LENGTH SUPPORT................... 23
TEE SUPPORT ..................................................................... 23
ELBOW SUPPORT ................................................................ 24
SECTIONF-WALL,FLOORANDROOFPENETRATION,
 GUYINGANDBRACING ................................... 24
Roof Thimble (RT) ............................................................ 24
Wall Thimble (WT) ............................................................ 25
THROUGH WALL SUPPORT .................................................. 25
Flashing (F)...................................................................... 25
Adjustable Flashing (F30)................................................. 25
GUYING AND BRACING. ....................................................... 26
SECTIONG-TERMINATION,STARTINGADAPTERS,
DRAININGSECTIONS,RELIEFVALVEAND
ACCESSORIES ................................................. 28
TERMINATION - GENERAL ................................................. 28
Finishing Cone (FC)...................................................... 28
Rain Cap (RC) or Rain Cap with Bird Screen (CRCB).............28
Flip Top (FT) ................................................................ 28
Miter Cut (MC) ............................................................ 28
No Loss Cap (NLC) ....................................................... 28
DRAINIING SECTIONS ......................................................... 29
Drain Length (DL)......................................................... 29
Horizontal Length (HDL) ............................................... 29
Nozzle Length (NL)....................................................... 29
RELIEF VALVE FOR EXCESSIVE PRESSURE........................... 29
Relief Valve (RV)........................................................... 29
APPLIANCE AND FLANGE CONNECTIONS ............................ 30
Single Wall Adaptor (SWA)............................................ 30
Single Wall Adaptor With Nozzle (SWAN)....................... 30
Ansi Flange Adaptor (FA) .............................................. 31
Half Universal Flange (HUF).......................................... 31
DAMPER LENGTH
Damper Length (DAMPLXX).......................................... 32
TYPICAL INSTALLATION FOR DIESEL GENERATOR EXHAUST... 33
TYPICAL INSTALLATION FOR BOILER APPLICATIONS............... 34
NOTE:Dimensions in these instructions are in American standard (feet and inches), with Metric (mm) in parenthesis except where stated otherwise.
Warning!
Failure to follow these installation Instructions could cause FIRE, CARBON MONOXIDE, POISONING, OR DEATH. If you are unsure of Installation requirements, call Phone Number
listed on the front of these instructions.
Caution-Risk of injury. Sheet metal parts may be sharp. Always wear gloves and appropriate eye, foot, and other protection when handling these products.

Model DAS PRO (Double wall, 1” air insulation = DAS1)
UL-103 - Building Heating Appliance Chimney 5”- 36” ID
UL-2561 - 1400° Fahrenheit Chimney 5”- 36”ID
Model DIS PRO (Double wall, fiber insulation, 1” thick = DIS1, 2” thick = DIS2, 4” thick = DIS4)
UL-103 - Building Heating Appliance Chimney 5”- 36” ID
UL-2561 - 1400° Fahrenheit Chimney 5”- 36” ID
UL-103 HT - Building Heating Appliance Chimney(Type HT) 5”- 24”ID
Model DCL (Single wall)
UL-103 - Building Heating Appliance Chimney 5”- 36” ID
UL-2561 - 1400° Fahrenheit Chimney (USA only) 5”- 36”ID
3NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
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:
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.
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
the same chimney system, assuming the proper associated airspace clearances-to-
combustibles are maintained.
ADDITIONAL APPLICATIONS
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
including but not limited to the following: Fume Venting, Chutes, Particle Conveying,
Dryer Vents and Ventilation Ducts.
SUITABLE FOR POSITIVE PRESSURE VENTING APPLICATIONS WITH MAXIMUM 60”WATER
COLUMN INTERNAL STATIC PRESSURE AT 1000 DEGREES F.
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- 14 L36 BC
Model Dia. Part Material
DAS1 30° elbow with inside diameter 22” made of 304 inner flue and galvalume outer
casing: Code = DAS1-22E30CE.
DAS1- 22 E30 CE
Model Dia. Part Material
DCL wall support for 8” diameter grease duct made of galvalume: Code = DCL8WSE:
DCL 8 WS E
Model Dia Part Material
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”
Thickness for Ø5 to Ø36
Inner Wall: ................. 0.035”
Outer Wall: ................ 0.024”

Installed Stacks
(locking bands
installed)
Uninstalled
Stack (no
locking bands
installed)
DCL Ø5 to Ø36 I.D. + 37 1/4" I.D. + 2 1/2" I.D. + 1 1/8"
Ø5 to Ø6 I.D. + 10 3/4"
Ø7 to Ø9
Ø10 to Ø14
Ø16 to Ø22 I.D. + 14 3/4"
Ø24 to Ø30 I.D. + 16 3/4"
Ø32 to Ø36 I.D. + 18 3/4"
Ø5 to Ø6 I.D. + 4 3/4"
Ø7 to Ø9
Ø9 to Ø14
Ø16 to Ø22 I.D. + 8 3/4"
Ø24 to Ø30 I.D. + 10 3/4"
Ø32 to Ø36 I.D. + 12 3/4"
Ø5 to Ø7 I.D. + 6 1/2"
Ø8 to Ø14
Ø16 to Ø30 I.D. + 8 3/4"
Ø32 to Ø36 I.D. + 10 3/4"
Ø5 to Ø7 I.D. + 10 1/2"
Ø8 to Ø14
Ø16 to Ø30 I.D. + 12 3/4"
Ø32 to Ø36 I.D. + 14 3/4"
I.D. + 8 3/4"
Dimensions are in inches
I.D. + 10 3/4"
I.D. + 9 1/2"
DIS4
TABLE 2 -
Openings in Floor / Wall / Roof for All Models
I.D. + 2 3/4"
I.D. + 3 1/2"
Combustible
Roof / Floor /
Wall (in)
Non-Combustible
Roof / Floor / Wall
(in)
DAS1
I.D. + 4 1/2"
I.D. + 12 3/4"
Duct
Model
Flue
Diameter Ø
(in)
I.D. + 2 3/4"
I.D. + 4 3/4"
I.D. + 6 3/4"
I.D. + 5 1/2"
DIS1
DIS2
I.D. + 3 1/2"
I.D. + 4 1/2"
I.D. + 6 3/4"
Model
Flue
Diameter Ø
(in)
Clearance to
Combustible
(in)
Clearance to
Non-Combustible
(in)
DCL Ø5 to Ø36 18 0
Ø5 to Ø6 4 0
Ø7 to Ø14 5 0
Ø16 to Ø22 6 0
Ø24 to Ø30 7 0
Ø32 to Ø36 8 0
Ø5 to Ø6 1 0
Ø7 to Ø14 2 0
Ø16 to Ø22 3 0
Ø24 to Ø30 4 0
Ø32 to Ø36 5 0
Ø5 to Ø14 1 0
Ø16 to Ø30 2 0
Ø32 to Ø36 3 0
TABLE 1 - Minimum Air Space CLEARANCE to Unenclosed Combustible
Surroundings (adjacent to maximum of two walls).
DAS1
DIS1
(UL 103 Type HT
Ø5 to Ø24 only)
DIS2 & DIS4
(UL 103 Type HT
Ø5 to Ø24 only)
Dimensions are in inches
Opening required when installing the models DIS PRO/ DAS PRO
throught a roof oor or wall made of combustible materials.
CLEARANCE
Security Models DCL, DIS PRO and DAS PRO are primarily intended to be used in a
non-combustible surrounding. Only Model DIS PRO and DAS PRO can be used for either
combustible or non-combustible surroundings. When installed in an open room where
enclosure is not required, the chimney may be located at a minimum clearance to
adjacent combustible walls in accordance with Table 1. The chimney may be located
in corners formed by two combustible constructions (walls, floor, ceiling, supports, etc.)
NOTE: The clearance distance with the wall is the distance between the wall and the
Inner V-Band (for Model DCL) or the Outer Band BSE (for Model DIS Pro and DAS Pro).
See Figure 1 for the clearance distance.
For non combustibles construction, maintain clearance as required for installation access
for inspection or per local code. In buildings more than one story in height and in one-story
buildings where the roof-ceiling assembly is required to have a fire resistance rating, the
duct must be enclosed in a continuous enclosure from the lowest fire-rated ceiling or
floor, through any concealed spaces, to or through the roof to maintain the integrity of the
fire separations required by the applicable building code provisions. If the building is less
than 4 stories in height, the enclosure shall have a fire resistance rating of not less than 1
hour. If the building is 4 stories or more in height, the enclosure shall have a fire resistance
rating not less than 2 hours.
Security Models DCL, DIS PRO and DAS PRO chimneys may penetrate a combustible
floor, wall, or roof using the appropriate parts and openings sizes. See section D “Roof
& Wall Penetration” for more details.
NOTE :Do not enclose with combustible materials
In the case of a fire rated enclosure made of non-combustible or limited combustible
construction, the minimum clearance with the Model DCL must be 6” or as required by
local code.
4
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
OPENINGTHROUGHCONSTRUCTION
The following table serves to identify the minimum opening required when installing a
chimney through a floor, wall or roof made of combustible material. See Table 2 and
Figure2.
Figure2-OpeningforModelDISPROandDASPRO
SYSTEMSIZING
Complete system sizing and capacity information maybe obtained from the “Chimney,
Gas Vent, and Fireplace Systems” chapter of the ASHRAE Handbook (go to www.ashrae.
org for more information). In spite of these general sizing guidelines, it is most important
that the heating appliance, engine or turbine manufacturer’s installation instructions
are followed. Not following the equipment manufacturer’s instructions may result in
inadequate chimney performance and/or a violation of the equipment manufacturer’s
Installation requirements.
Figure1-DetailofClearanceDistanceforDISPRO/DASPRO

DCL DAS1 DIS1 DIS2 DIS4
Ø5 to Ø22 264 133 114 97 73
Ø24 to Ø36 161 82 70 59 45
Ø5 to Ø22 281 142 121 103 78
Ø24 to Ø36 172 87 74 63 48
Ø5 to Ø22 102 52 44 37 28
Ø24 to Ø36 63 32 27 23 17
Ø5 to Ø22 105 53 45 39 29
Ø24 to Ø36 64 32 28 24 18
Parts Flue Diameter
Ø (in)
TABLE 3 -
Height Limits for each Type of Support
Height (ft)
Dimensions are in inches (diameter) and feet (distance)
Base supported Tee
(T90 or T45)
Wall Support
(WSHD)
WARNING:
Do not attached any supports to combustible constructions.
Anchor Plate
(AP)
Anchor Plate with
Length (APL)
Flue
Diameter
Ø (in)
MVS* H** MVS* H** MVS* H** MVS* H**
5 20' 8' 6" 20' 7' 3" 20' 6' 6" 20' 5' 9"
6 20' 9' 6" 20' 8' 3" 20' 7' 6" 20' 6' 9"
7 20' 10' 20' 8' 9" 20' 8' 3" 20' 7'
8 20' 10' 9" 20' 9' 20' 8' 6" 20' 7' 3"
9 20' 11' 6" 20' 9' 3" 20' 8' 9" 20' 7' 6"
10 20' 12' 20' 9' 6" 20' 9' 20' 7' 9"
11 20' 12' 6" 20' 9' 9" 20' 9' 3" 20' 8'
12 20' 13' 20' 10' 20' 9' 6" 20' 8' 3"
13 20' 13' 6" 20' 10' 3" 20' 9' 9" 20' 8' 6"
14 20' 14' 20' 10' 6" 20' 10' 20' 9'
16 20' 14' 6" 20' 11' 20' 10' 6" 20' 9' 6"
18 20' 15' 20' 11' 6" 20' 11' 20' 10'
20 20' 15' 20' 12' 20' 11' 6" 20' 10' 9"
22 20' 15' 20' 12' 3" 20' 11' 9" 20' 11'
24 20' 15' 20' 12' 9" 20' 12' 3" 20' 11' 6"
26 20' 15' 20' 13' 20' 12' 6" 20' 12'
28 20' 15' 20' 13' 6" 20' 13' 20' 12' 3"
30 20' 15' 20' 13' 9" 20' 13' 6" 20' 12' 9"
32 20' 15' 20' 14' 3" 20' 13' 9" 20' 13' 3"
34 20' 15' 20' 14' 6" 20' 14' 3" 20' 13' 6"
36 20' 15' 20' 15' 20' 14' 6" 20' 13' 9"
38 20' 15' 20' 14' 9" 20' 14' 6" 20' 13' 9"
40 20' 15' 20' 14' 9" 20' 14' 3" 20' 13' 9"
42 20' 15' 20' 14' 9" 20' 14' 3" 20' 13' 9"
44 20' 15' 20' 14' 6" 20' 14' 3" 20' 13' 9"
46 20' 15' 20' 14' 6" 20' 14' 3" 20' 13' 9"
48 20' 15' 20' 14' 6" 20' 14' 3" 20' 13' 9"
* MVS = Maximum Vertical Spacing between two guides or support and
guide in a vertical position.
** H = Maximum Freestanding Heigth above the roof. This limited heigth
is due to wind loads.
Dimensions are in inches (diameter) and feet (distance)
TABLE 4 - Maximum Vertical Spacing between any Guides /
Supports and Maximum Freestanding above the Roof
DAS1 / DIS1 DIS2 DIS4
Heigth (ft) Heigth (ft) Heigth (ft) Heigth (ft)
Model DCL
DCL DAS1 DIS1 DIS2 DIS4
Ø5 to Ø12 23 23 19 16 12
Ø14 to Ø24 19 19 16 14 10
Ø26 to Ø36 15 15 13 11 8
Dimensions are in inches (diameter) and feet (distance)
TABLE 5 - Maximum Horizontal Spacing (MHS) between each Guides/Supports
Half Angle Ring (HAR) /
Full Angle Ring (FAR) /
Anchor Support (AP) /
Anchor plate with
Length (APL) /
Heavy Duty Wall Guide
(HDWG)
Product Flue
Diameter Ø
NOTE: The Half Angle Ring (HAR) and Full Angle Ring (FAR) used in horizontal
installation must be installed with threaded rods having a minimum of Ø1/2" or with
structural steel provided by others.
Distance (ft)
5NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
PRODUCT INSPECTION
Chimney components are shipped on individually marked skids. Compare the labeled
skids to the packing list to ensure all components of the chimney system have been
shipped. For missing components contact Duravent’s Customer Service department at
800-667-3387 (Canada) or 800-361-4909 (USA).
FREIGHTDAMAGE
Each component should be checked for freight damage when it is unloaded at the site.
For damaged components contact the shipping company as soon as possible to file a
claim.
PROPERSTORAGE
All chimney components should be stored in a dry place until installed.
Sealant shall be stored in location where it will not freeze.
PRODUCTWEIGHTS
The average weight of the duct, per foot of length, can be estimated using the following
formula:
DCL: 0.40 x diameter in inches = lbs per foot
DAS1: 0.79 x diameter in inches = lbs per foot
DIS1: 0.93 x diameter in inches = lbs per foot
DIS2: 1.09 x diameter in inches = lbs per foot
DIS4: 1.44 x diameter in inches = lbs per foot
Chimney design should provide adequate support to ensure components are not
overloaded.
THERMALEXPANSIONCALCULATIONS
Thermal expansion under normal operating temperatures can fatigue welds and joints
causing leakage. To calculate the thermal expansion, use the following formula:
[Length (ft) / 100] x [Temperature Rise degrees F / 100]
Example: [50’ / 100] x [75°F / 100] = 0.375” Expansion
If the computed expansions between the fixed points is greater than 0.375” Security
recommends an adjustable or bellow length be installed.
SUPPORTMETHODSANDHEIGHTLIMITS
1. Several support and guiding methods are used to anchor a chimney against upward,
downward and angular displacement.
2. These supports and guides used with thermal expansion devices, prevent bending
stresses on the chimney elbows and joints.
3. Supports and guiding methods and installation are described in SECTION
E-SUPPORTS. Certain limitations apply for proper installation of supports and
guides. SeeTables3,4,5andFigures3and4.
4. It is recommended to apply an exterior grade high heat paint to any plate supports,
full/half angle rings, wall supports/guides, aluminized outer maximum corrosion
protection against the elements. (Ex: Rustoleum V200 series High Heat Industrial
Aerosol)
NOTE: All the weight of the section must be supported by the inner flue. Never
support any chimney pipe from the outer casing.

Figure4-MaximumfreestandingHeight
6
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
Figure3-MaximumSupportedHeight

7NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
EXTERIORCORROSIONPROTECTION:
It is recommended to apply an exterior grade high heat paint to any plate supports, full/half
angle rings, wall supports/guides, aluminized outer walls corrosion protection against the
elements. (Ex. Rustoleum V200 series High Heat Industrial Aerosol)
SEISMIC REQUIREMENTS
In certain areas of the country, local codes contain requirements to address seismic risks.
Seismic requirements for chimneys and grease ducts usually include specifications for
additional ”sway bars” / bracing, or similar devices in order to help stabilize the system in the
event of an earthquake.
Specific guidelines (including spacing, location, size and method of attachment of bracing /
sway bars or other devices) for addressing seismic requirements vary depending upon the
adopted code, seismic zone, duct size, location in building, etc. and are not within the scope
of these installation instructions.
Consult with a design professional in order to determine compliance options for these potentially
complex requirements when this product is to be installed in a building where these additional
requirements apply.
The support methods described in these instructions have been proven adequate (via UL
certification) for locations where there are no additional seismic zone requirements. In order
to address additional seismic requirements they may be further supplemented with a variety of
generic sway bars or braces that attach to or around the outer wall of the grease duct system.
Full Angle Rings (FAR) and Half Angle Rings (HAR) may be included as components of such
supplemental bracing.

8
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
Figure5-Featureofthealignmentpart
The alignment sleeve facilitates centering of adjacent sections and provides a backing for the
sealant applied to the flange keeping the sealant in the intended location.Typically, it is inserted
in the downstream end but may be removed. Although not required, it aids in easier assembly,
better sealing and adds strength to the section joint.
Figure6-JointAssemblyStep1
Join the two flanged ends of
the duct section together and
rotate slightly to ensure complete
coverage of sealant on flanges.
STEP 4
Install the V-Band around the
flanges making sure the flanges
are located within the V-Clamp.
NOTE:
Do not locate V-Band
hardware at the bottom side of
horizontal duct joints.
NOTE: Light tapping with a
hammer all around the band
while tightening bolts helps align
and pull flanges together.
STEP 5 (DIS PRO ONLY)
Install the supplied insulation
strips between the sections to
ensure that all air gaps are filled.
Be sure that insulation is tightly
packed and completely fills the
void between flue and closure
band when assembled.
Figure8-JointAssemblyStep3
STEP 2
Apply a continuous bead of S-2000 or S-650 sealant 1/4” wide to one of the flanges
to be joined.
Figure9-JointAssemblyStep4
Figure10-JointAssemblyStep5
SECTION C - PIPE & FITTING JOINT ASSEMBLY
The ends of each inner pipe are made of flanges.All the joints between sections are a flange-
to-flange connection of the inner pipe.
CAUTION: SHARP SHEET METAL, RISK OF CUTS WITH SLEEVES AND SECTIONS.
SPECIAL FEATURE
All sections have an unattached alignment sleeve (See gure5).
JOINT ASSEMBLY
STEP 1
Fill the channel of the inner V-Band (BSI) with the right Sealant, depending on flue gas
temperature (refer to SEALANT USAGE section for proper sealant selection) and install
below flange of first pipe section.
NOTE: Sealant is supplied by Security and individual tubes are marked
S-2000 or S-650 . See TABLE 6 for number of tubes per joint.
CAUTION: THE USE OF ANY OTHER SEALANT IS NOT RECOMMENDED, MAY VOID
CERTIFICATION AND MAY IMPAIR THE SEALING EFFECTIVENESS.
STEP 3
Figure7-JointAssemblyStep2

Flue
Diameter Ø
(in)
Number of tube
per Joint
5 to 10 1/5
11 to 16 1/4
18 to 22 1/3
24 to 28 1/2
30 to 36 2/3
32 to 36 3/4
TABLE 6 - Expected number of
Tubes per Joint Assembly
(for S-2000, S-650 or S-375)
SEALANTUSAGE
1. Part No. S-2000: a high temperature pre-mixed sealant for flue gas temperature up
to 2000°F. S-2000 IS WATER SOLUBLE AND SHOULD NOT BE USED WHERE EXPOSED
TO WEATHER
2. Part No. S-650 (Permatex® Red High Temp Silicone) is red and is one of
our UL approved sealants for temperatures up to 650°F. Can also be used for
weathering/sealing on outdoor seams & Channel Bands where necessary.
3. Part No. S-375 (Nuflex 302 General Purpose) is a low temperature grey silicone
(450°F)only for weathering/sealing onoutdoor seams &Outer Band BSE where necessary.
CAUTION:
- THE OUTER BAND (BSE) IS DESIGNED TO SLIDE ON THE OUTER WALL. DO NOT
ATTACH BY SCREWS INTO THE OUTER CASING.
- DO NOT ALLOW SCREWS TO PENETRATE THE INNER PIPE. THIS CAN CAUSE
CORROSION, GAS LEAKAGE OR EXPANSION FAILURE.
- NEVER USE SCREWS THROUGH THE OUTER JACKET OF A BELLOW LENGTH
9NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
Figure11-JointAssemblyStep6
STEP6(DISPROandDASPROonly)
Secure the Outer Casing with the Outer Band (BSE).
Joint installation is now complete.
NOTE: Seal the BSE band with
S-375 sealant if exposed to weather.

THERMALEXPANSION
The inner pipe of Models DCL, DIS PRO and DAS PRO is load bearing and its thermal
expansion is the same as that of a continuous pipe. A simplified rule for exhaust pipe
expansion estimation is that the axial growth will be approx. 1” per 100’ of pipe length
for each 100°F the flue gas temperature is above the surrounding air temperature. See
THERMAL EXPANSION CALCULATIONS in SECTION B
When assembled in any orientation, the amount of thermal expansion of the inner pipe
is directly dependent on the inner wall temperature and the length of pipe between fixed
points. Good installation practice requires that expansion greater than 1/4 inch will
be compensated for using a Bellows Joint or Adjustable Length, depending on the
maximum pressure encountered.
The flanged inner piping joints have negligible flexing capacity, and in addition, tees and
elbows are not designed to withstand bending moment forces. Because the amount
of outer casing axial movement is the same as inner casing movement, the outer
jackets of piping must slide to avoid excessive forces on tees, elbows or fixed points.
To accommodate outer casing movements, external guides along walls at floors, or in
lateral breechings, must allow for movement of pipe.
CAUTION: When a joint of assembly is just bellow a Guide Support (WGHD), a
minimum space between the top of the outer Band (BSE) and the Guide must be
added. This distance must be at least the value of the Thermal expansion calculated.
NOTE: When resupporting a high rise exhaust system,Adjustable Lengths or Bellows
Joints must be used just below every support above the first to compensate for
thermal expansion. For engine and turbine exhaust systems requiring pressures to
60 inches of water column, or where the construction must be absolutely gas tight,all
welded Bellows Joints are recommended for expansion and vibrational movements
of the exhaust piping. Out-of-doors construction or low pressure systems, such as
boilers (to 6 inches of water column), can effectively use the Adjustable Length.
Spacing of guides and supports, when a thermal expansion part is used, should be not
greater than specified in Section B. Proper guiding and support of expansion parts often
requires closer spacing.
BELLOWSLENGTH(LB):ThermalExpansionandPositive
Pressure
For exhaust pressure to 60 inches of water column, Bellows are recommended for
expansion and vibrational movements of the piping. See Figure 12 for an illustration of a
Bellows.
Figure 53 in the SECTION E illustrates the use of Bellows in a typical installation. The
use of the Lined Bellows Joints is shown to compensate for the axial expansion of the
long horizontal run.
The Bellows has a 0.035” thick or heavier straight stainless steel liner to protect the
thinner Spring material from heat and flow effects. It is used anywhere in a system for
axial and vibrational movements only and must be accurately supported and guided.
This part has limited lateral movement (1/8” max.) and lateral offsets and parallel
misalignments should be eliminated. The purpose of the liner is to minimize contact,
smooth flow, control erosion and eliminate resonance caused by exhaust gases passing
through the bellows.
The Bellows requires careful placement of piping guides to avoid interference on
thermal expansion. Bellows should not be installed with any compression, but at its full
uncompressed length in ambient state.
The joint assembly of the Bellow Length is like the standard sections. See SECTION C
for details of Joint Assembly.
The system operating pressure of 60 inches water column (2.08 psi) is based on the
estimated capability of ceramic sealed V-Band (BSI) joints. The actual pressure limit of
the welded bellows will be 10 psi for 5 to 36 diameter at 1000°F.
HORIZONTAL INSTALLATION OF BELLOWS or ADJUSTABLE LENGTHS
Horizontal or sloped installations of Bellows or Adjustable Lengths use the same parts,
assembled in the same relationship, as a vertical assembly. These expansion joints, when
required may beplaced anywhere between two fixed pointsof horizontal orsloped installation
as long as they are properly guided, properly supported; and for sloped installations in
particular, as long as bottoming out is prevented.
VERTICAL INSTALLATION OF BELLOWS or ADJUSTABLE LENGTHS
When a Bellows Joint or an Adjustable Length is installed in a vertical position between
two fixed points, such as between a AP, APL or WSHD, it should be installed immediately
below or one pipe length below the higher support. To assure proper axial alignment,
guides must be installed at the pipe section below the bellows or adjustable length (see
Figure 52 and 53 in SECTION E). This combination of parts will assure proper movement
of bellows and adjustable lengths and thus relieve loads due to thermal expansion. It is
desirable to install bellows and adjustable lengths near the top of a vertical section to
ensure that they do not bottom out during installation and thus become ineffective at
relieving thermal expansion loads. This arrangement of parts will also resist wind loads
on installations which run up building exterior walls.
Flue
Diameter Ø
(in)
Bellow
Outside
Diameter
Bellows
number
convolution
Material
thickness
(in)
nb of
ply
Axial
Spring
Rate
Axial
Compression
(in)
5 6 1/4 14 0.011 2 124
3
6 7 1/4 14 0.011 2 139
3
7 8 3/8 14 0.011 2 151
3
8 9 3/8 12 0.011 2 162
3
9 10 3/8 12 0.011 2 173
3
10 11 3/8 12 0.011 2 184
3
11 12 3/8 12 0.011 2 197
3
12 13 3/8 12 0.011 2 210
3
13 15 8 0.011 2 139
3
14 16 8 0.011 2 149
3
16 18 8 0.011 2 159
3
18 20 8 0.011 2 169
3
20 22 8 0.011 2 181
3
22 24 8 0.011 2 193
3
24 26 8 0.011 2 205
3
26 28 8 0.011 2 216
3
28 30 8 0.011 2 229
3
30 32 8 0.011 2 242
3
32 34 8 0.011 2 255
3
34 36 8 0.011 2 268
3
36 38 8 0.011 2 281
3
TABLE 7 - Bellow Length Properties
Dimensions are in inches (diameter) and pound/inch (Axial Spring Rate)
10
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
SECTION D - COMPONENTS
EXPANSIONJOINT,ODDLENGTHANDHIGHPRESSURESYSTEM
Three different parts can be used when a system has the following
combine situation:
- Thermal Expansion and Positive Pressure System = Bellow Length (LB)
- Positive pressure and odd length = Variable Length (LV)
- Odd Length and Thermal Expansion = Adjustable Length (LA).
See Figure 52 and 53 in Section E for typical installation of LA, LV and LB.
Figure12-BellowLength

ADJUSTABLE LENGTH(LA)-ThermalExpansionandOdd
lengths
The LA has two functions. It is used to compensate for thermal expansion
and make up odd lengths of duct.
NOTE: The LA cannot be used in positive pressure system. A Bellow Length (LB) must
be used instead. In a case there is also an odd distance to fit in a positive pressure
systeme, a Variable Length (LV) can be combined with a LB.
It is shipped with graphite band assembly preassembled on the sliding inner
pipe. See Figure 13.
Figure14-DetailofAdjustableLength
11 NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
Half Outer
Retaining
Band
Cuttable Half
Outer Casing
Movable Gasket
Assembly
Cuttable Sliding
Inner Wall
Figure13-AdjustableLength
Gas Flow
Single
Flanged
Band
Double
Flanged
Band
The whole LA assembly includes:
See Figure 14 for details
•A sliding inner wall that fits closely inside a standard pipe section and it is flanged on
one side.
•An adjustable gasket assembly, composed of;
• two containing rings;
◦one compression band (metal Tie Wraps)
◦a graphite packing gasket
◦one double flanged band
◦one other single flanged band
•Insulationband(DISPROonly)
•twohalfoutercasing(DISPROandDASPROONLY)
NOTE: Sealant must be ordered separately. See SEALANT USAGE in SECTION C.
There is also a supplied tool with this assembly. This tool works as a spacer
when tighten the bolts of the containing rings on the graphite gasket. See
Figure 18.
NOTE: Do not remove this adjustable gasket assembly from the inner pipe.
See Figure 14.

12
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
The length adjustment from Flange to Flange is from 7 1/4” to 28 3/8”. For
proper installation, the adjustable length must have adequate overlap and
sufficient allowance for thermal expansion.
If the length of the inner wall or the outer casing is too long, it can be cut.
However, keep I mind that the minimum overlap for the sliding inner wall
into the inlet end section is 8” and the minimum overlap for the outer
casing is 1” with the down stream section outer wall (See Figure 15).
NOTE: Installation of an LA joint to fittings, such as elbow and tees, is not
recommended. However, if its joint must be joined to one of these
fittings,The unflanged end of the tube should always point downward
or towards downward slope.
Figure15-DetailofOverlapoftheAdjustableLength
Gas Flow
Desired
Length ”X”
Outer Casing
Length = X + 6”
Min. Outer Wall
Overlap = 1”
Min. Inner Wall
Overlap = 8”
Sliding Inner
Wall
Metal Tie Wrap
tighten stronger
Outlet end section
Inlet end section
The expansion length must be added to the minimum length of the LA so it may
compensate for abnormal and normal operating conditions.
The amount of expansion is calculated as follows:
Expansion = Length (feet)/100 x Temperature rise (°F)/100
Minimum Length =Expansion + 7 1/4”
NOTE: It is recommended that the temperature used in the above formula be
at least 300°F higher than the expected normal operating temperature.
NOTE: Adjustable Length cannot be used to correct misalignment or to
compensate for lateral movement or vibration. It is recommended
that the duct on both side of the LA joint is supported or guided to
ensure that it will not bind during operation. See Variable and
Adjustable Support section for typical applications.
INSTALLATIONSTEPSFORTHEADJUSTABLELENGTH
1.Place the sliding inner liner section (with the graphite band assembly on it) into a standard
section of DCL, DIS PRO or DAS PRO.
NOTE: If the inner flue is too long, it may be cut to length while respecting the
minimum overlap of 8” into the inlet end section duct plus the
expansion.
2. Secure the double flanged part of gasket collar assembly to the inlet end
section with the inner V-band (BSI). See Figure 16.
NOTE: See JOINT ASSEMBLY section for assembly of the V-Band
Figure16-InstallationofAdjustableLengthSteps1&2
3. Extend the sliding inner liner to its correct length (up to the outlet end section)
and secure it with the V-Band (See JOINT ASSEMBLY section).
4. Strongly tighten the metal tie wrap so that the graphite packing is firmly compressed
against the inner flue. See Figure 17.
Gas
Flow
Figure17-InstallationofAdjustableLengthSteps3&4
NOTE: On horizontal run, make sure that the joint of the graphite packing gasket
is on the top side of the section.

13 NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
5. Tighten all the bolts of the containing ring. For each bolt, use the supplied
tool as a guide between the two containing rings. See Figure 18.
Wrench
(by others)
Tool Supplied
Figure18-Step5oftheAdjustableLength
6. Install the outer pipe casing insulation (and insulation strip if Model DISPRO)
so the side with the bracket goes on the upstream section. See Figure 19.
NOTE: The outer wall must fit loosely and slide freely when the duct expands
or contracts.
NOTE: If the outer casing is too long, it may be cut to length by respecting the
minimum overlap of 1” with the outer wall of the inlet end section.
VARIABLELENGTH(LV):ForPositivePressureSystemand
Oddlengths
The Variable Length (LV) has one major function. It makes up odd lengths of
duct. It must not be used for expansion compensation.
NOTE: For high positive pressure application, such as on diesel generator exhaust, it is
allowed on the outside of the building only.
It is shipped with a flanged retaining band assembly on the inner sliding wall.
See Figure 20.
Figure19-InstallationofAdjustableLengthStep6
Gas Flow
Half Outer
Retaining Band
Cuttable Half
Outer Casing
Adjustable Flanged
Retaining Band
Cuttable Sliding
Inner Wall
Figure20-VariableLength
The whole LV assembly includes:
See Figure 21 for details.
•A sliding inner wall that fit closely inside a standard pipe section and it is flanged on
one side.
•An adjustable flanged retaining band, composed of;
◦Double flanged sleeve
◦Retaining flanged collar
◦An inner V-Band (BSI)
•Insulation band (DIS PRO)
• Split outer casing (DIS PRO/DAS PRO)
NOTE: Sealant must be ordered separately. See SEALANT USAGE in SECTION C.
Retaining
Flanged Collar
Inner V-Band
(BSI)
Double Flanged
Sleeve
Half Outer
Wall
Figure21-DetailofVariableLength

14
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
Flange to flange length adjustment can range from 7”x 28 1/2”
NOTE: If the flue is too long to fit into the adjacent section of duct without
interfering with the flow path, it should be trimmed to desired
flange to flange length plus an overlap of 4” with the inner wall
of the inlet end duct section. The minimum overlap for the outer
casing is 1” with the inlet end section outer wall.
See Figure 22).
NOTE : If an LV joint must be joined to one of these fittings, the unflanged end
of the tube should always point downward or towards downward slope.
Gas Flow
1” min
Sliding Inner
Wall
4” min
Figure24-OverlapDetailsforVariableLength
INSTALLATIONSTEPSFORTHEVARIABLELENGTH(LV)
1. Measure the distance X required for the variable length. See Figure 23.
Distance ”X”
Figure23-Step1forInstallationofVariableLength
2. Cut the inner wall at the dimension Xfound at the first Step plus 4”.
See Figure 24a.
3. Cut the split outer casing at dimension Xplus 1”.
See Figure 24b.
4. Then cut the insulation band at dimension X+ 6” (DIS PRO only).
See Figure 24c.
Cut Sliding Inner
Wall to X + 4”
Figure24a-Step2-CutoftheSliding
 InnerWall
Cut Split
Outer
casing to
X + 1”
Figure24b-Step3-CutoftheOuterCasing
Cut Insulation
(DIS PRO Only)
to X + 6”
Figure24c-Step4-CutoftheInsulation
Desired
Length ”X”

15 NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
5. Install the interior assembly between the two parts. Place the adjustable
flanged band assembly toward the downstream section.
6. Assemble the outlet end sliding inner wall to the outlet end section as a
regular section (See JOINT ASSEMBLY section). See Figure 25.
Secure Inner Flanged End to the
outlet end Section duct
Install interior assembly between
two parts, unanged end toward
inlet end Section
Figure25-Step5-6-InstalltheinnerLVandsecuretheoutletendFlange
7. Before assemble the double flanged sleeve to the inlet end section, add a
thin coat of sealant about 1” wide a thin coat of sealant at the unflanged end
of the LV joint where the joint slides into the mating duct section. Press sealant into any
gap between the LV and the mating joint section.
8. Assemble the inlet end flange assembly with the inlet end section flange as a regular
length installation (See JOINT ASSEMBLY in SECTION C).
9. Apply thin layer of sealant inside the retaining collar, and also a continuous
bead of sealant at the collar overlap seam. See Figure 26.
Inner V-Band (BSIK) for
Upstream Section
Sealant S-2000
or S-650 (See
SEALANT
USAGE in
SECTION C)
Inner V-Band (BSI)
for Retaining Collar
Inner V-Band (BSI)
for inlet end Section
Figure26-Step7-9-SecuretheDoubleFlangedSleeveand
 sealtheRetainingFlangeCollar
10. Slide down the retaining band on the double flanged sleeve to mate their
flanges and tighten the retaining collar.
11. Then install the other V-band (BSI) over these flanges (like regular section
joint assembly). See Figure 27.
Inner V-Band (BSI) for
outlet end Section
Inner V-Band (BSI)
for Retaining Collar
Inner V-Band (BSI)
for inlet end Section
Figure27-Step10-11-SecuretheRetainingFlangedBand
12. Install the insulation over the inner wall (DIS PRO only). See Figure 30.
Install the insulation
(DIS only)
Figure28-Step12-InstallInsulationforLV
13. Install the split outer casing that covers from the outer wall of the inlet end section to
the outer wall of the outlet end section.
See Figure 29.

Figure32 - LateralTee(BT)
16
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
Figure29-Step13-InstallofSplitOuterCasing
Split Outer Casing
TEES
90° TEE (T90)
The 90° Tee is generally used to connect horizontal connectors into a
vertical section as well as a drain or inspection fittings. See Figure 30 for a 90° Tee.
NOTE: For the maximum height of chimney above a based supported
Tee, see Table 3 in SECTION B
TEE PRECAUTION
1. Use an Adjustable Length (LA) or a Bellow Length (LB) + Variable Length (LV) in
all horizontal breechings or laterals.
2. If more than ¼” of thermal expansion is expected between the tee and the next
fixed support point;
a. Tees should be protected from bending moments by use of an Adjustable
Length (LA) or a Bellow Length (LB) combined with a Variable Length
(LV) (See the section on the EXPANSION JOINT, ODD LENGTH AND HIGH
PRESSURE SYSTEM)
b. And the use of two axis support as in Figure 54 and 55 in TEE SUPPORT
section is recommended.
3. Provide access for easy removal of Tee Caps.
4. Never support any Models DAS PRO/DIS PRO by the outer casing.
45° TEE (T45) AND DOUBLE 45° TEE (TD45)
See Figure 31a for the Tee 45° Tee and the Figure 31b for the tee with two
entrances to trunk (the Double 45° Tee).
Figure31b-Double45° Tee(DT45)
LATERALTEE(BT)
The Lateral Tee (BT) is a 45° Tee with a 45° Elbow integrated in it. The installation
details are the same as a 90° Tee. See Figure32
Figure 31a - 45° Tee (T45)
Figure 30 - 90° Tee

TEECAP(TC)
The Tee Cap provides access for cleaning and inspection into the chimney. Usually on
horizontal runs, the Tee Cap is used to close the unused port of any Tee and for cleanout
or access purposes only. When using clean-outs, always seal the connection to prevent
leaks and assure that the chimney functions as intended.
The part list includes;
1x Cap with one Handle
1x smaller V-Band (BSI)
The Next Item are for Models DIS PRO / DAS PRO only:
- 1x Outer Casing;
- 1x Insulation Band for Models DIS1 or DIS2;
1 or 2x insulation band for Model DIS4
- 1x Insulation Pad for DIS1 or DIS2, or 2x Insulation pad for DIS4
- 1x Larger inner V-Band (BSI)
INSTALLATION PROCEDURES
1 - Apply sealant to duct flue flange and on the Inner Cap (disc with one handle), about
a 3/8” bead all around the cap.
2 - Use the smaller inner V-Band (BSI) to secure the cap to the flange of the 90° Tee
(T90, not included) as specified in the JOINT ASSEMBLY section
NOTE: Be sure the handle of the cap faces outward as shown. See Figure 33b
Figure33b:TeeCapStep2
THE NEXT STEPS ARE FOR MODELS DIS PRO / DAS PRO ONLY.
3 - Then add the insulation pad at the bottom of the casing.
4 - Wrap the insulation band around the inner wall of the Tee, up to the spacer/brackets
inside the Tee. See Figure 33c.
5 - Mate the flange of the outer casing with the flange of the out wall of the Tee section.
For a proper installation, make sure that the insulation band goes up to the
spacers of the T90.
6 - Secure with the bigger V-band (BSI) by tightening the retaining screw. See Figure
33d
DRAIN TEE CAP (DTC)
The Drain Cap (DTC) is used as a drain for the base of vertical installation and must be
connected to a suitable disposable point. It can also be used as an access for cleanouts
or access purpose. See Figure 34. Same installation as a Tee Cap (TC).
Figure33a:Step1fortheinstallationoftheTC
Figure33d:TeeCapinsulatedcasingStep5and6
Figure34:DrainTeeCap(DTC)
Figure33c:TeeCapinsulatedcasingStep3and4
17 NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.

1- Sloped offsets require more expansion joints and secure bracing above and below
elbows.
2- The length of the offset is determined by strength considerations. The maximum
dimension between supports is given in Table 5 and Figure 36b, and is applicable
to all horizontal and sloped orientations
3- The minimum offset is accomplished with two elbows directly connected to each
other (see Figure 36 and Table 8a, b, c, d, e.).
4- With frequent re-support, there is no structural or operating limit to the length of
horizontal or sloped portions of Models DCL, DIS PRO and DAS PRO, providing the
system meets the capacity, pressure drop of available equipment.
5- The carrying capacity of supports and their structural attachments must take into
account the weight of the offset plus whatever vertical sections are carried by that
support.
6- Height limits for supports are tabulated in SUPPORT METHODS AND HEIGHT LIMITS
of these instructions.
7- The ends of any sloped or horizontal offset must be anchored to prevent overstressing
elbows and to assure proper operation of expansion joints.
8- The vertical sections above the offset must also be supported or anchored and
guided where necessary.
9- Models DCL, DIS PRO and DAS PRO Heavy Duty Floor Guide (FGHD), Heavy Duty
Wall Support (WSHD) and Heavy Duty Wall Guide (WGHD) may be used in a variety
of ways for offset support to achieve the structural stability of the system. Preferred
methods of using Models DCL,DIS PRO and DAS PRO supportsare shown in SUPPORTS
section.
10- Re-supports such as those shown in Figure 56 and 57 must be securely anchored to
walls, posts,or locally fabricated rigid framework.This framework must be designed
to assure stability of attached Models DCL, DIS PRO and DAS PRO supports, such
as Anchor Plate (AP) supports and Heavy Duty Wall Supports (WSHD).
11- Supports suspended by threaded rods or from small size angles or straps are usually
not satisfactory to resist bending moments due to offsets.
12- There is no limit on the angle or slope of an offset for gas or liquid fuel burning
appliances, but with a solid fuel burning appliance the slope must not be greater
than 30° from the vertical. Chimneys for combination fuel heating appliances which
are capable of burning solid fuel or are convertible to solid fuel are limited to the
same 30° slope even if the current choice of fuel is gas or oil.
Elbows are not designed to take bending loads or thermal expansion. Thus, Elbows
must be structurally supported or protected from thermal expansion. Structural parts
such as posts or beams may also be needed to hold chimney supports in position. See
ELBOW SUPPORT section.
OFFSETS
Diameter
Ø (in.) 3° 15° 30° 45° 90°
53/8 2 4 1/8 6 1/4 13 1/4
63/8 2 4 1/4 6 5/8 14 1/4
73/8 2 4 3/8 6 7/8 15 1/4
83/8 2 4 1/2 7 1/8 16 1/4
93/8 2 1/8 4 5/8 7 1/2 17 1/4
10 3/8 2 1/8 4 3/4 7 3/4 18 1/4
11 3/8 2 1/8 4 7/8 8 19 1/4
12 3/8 2 1/8 5 8 3/8 20 1/4
13 3/8 2 1/4 5 1/8 8 5/8 21 1/4
14 3/8 2 1/4 5 1/4 8 7/8 22 1/4
16 3/8 2 3/8 5 1/2 9 1/2 24 1/4
18 3/8 2 3/8 5 3/4 10 1/8 26 1/4
20 3/8 2 1/2 6 1/8 10 5/8 28 1/4
22 3/8 2 1/2 6 3/8 11 1/4 30 1/4
24 3/8 2 5/8 6 5/8 11 7/8 32 1/4
26 3/8 2 5/8 6 7/8 12 1/2 34 1/4
28 3/8 2 3/4 7 1/8 13 36 1/4
30 3/8 2 3/4 7 3/8 13 5/8 38 1/4
32 3/8 2 7/8 7 5/8 14 1/8 40 1/4
34 3/8 3 8 14 3/4 42 1/4
36 3/8 3 8 1/4 15 3/8 44 1/4
TABLE 8a - Minimum (2) Elbow Offsets - DCL
Dimensions are in inches
18
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
Figure35a:3° Elbow
Removable
Alignment
Sleeve
Figure35b:15°Elbow Figure35c:30Elbow
Removable
Alignment
Sleeve
Figure35e:90°Elbow
ELBOWS
ELBOWS(E3,E15,E30,E45,E90)
Elbows are used for changes of direction in horizontal or vertical portions of a system. All
elbows feature the standard joint assembly as described in JOINT ASSEMBLY section. Elbows
are used in combination to make different angles ranging from 3° to 90° in horizontal and
vertical segments. See Figure 35a, b, c, d, e for all kind of Elbows.
Figure35d:45Elbow
Figure36a-Offsetof
two elbows
Figure36b-MaximumSpacing
between supports for Offset

Diameter
Ø (in.) 3° 15° 30° 45° 90°
51/2 2 1/2
5 1/4
8 1/4
18
1/2
61/2 2 1/2
5 3/8
8 1/2
19
1/2
71/2 2 5/8
5 1/2
8 3/4
20
1/2
81/2 2 5/8
5 3/4
9 1/8
21
1/2
91/2 2 5/8
5 7/8
9 3/8
22
1/2
10 1/2 2 5/8
6
9 5/8
23
1/2
11 1/2 2 3/4
6 1/8
10
24
1/2
12 1/2 2 3/4
6 1/4
10 1/4
25
1/2
13 1/2 2 3/4
6 3/8
10 1/2
26
1/2
14 1/2 2 3/4
6 1/2
10 7/8
27
1/2
16 1/2 2 7/8
6 3/4
11 3/8
29
1/2
18 1/2 3
7
12
31
1/2
20 1/2 3
7 1/4
12 5/8
33
1/2
22 1/2 3 1/8
7 5/8
13 1/8
35
1/2
24 1/2 3 1/8
7 7/8
13 3/4
37
1/2
26 1/2 3 1/4
8 1/8
14 3/8
39
1/2
28 1/2 3 1/4
8 3/8
14 7/8
41
1/2
30 1/2 3 3/8
8 5/8
15 1/2
43
1/2
32 1/2 3 3/8
8 7/8
16 1/8
45
1/2
34 1/2 3 1/2
9 1/8
16 3/4
47
1/2
36 1/2 3 1/2
9 1/2
17 1/4
49
1/2
Dimensions are in inches
TABLE 8b - Minimum (2) Elbow Offsets - DAS1 & DIS1
Diameter
Ø (in.) 3° 15° 30° 45° 90°
51/2 2 3/4 6 1/8 10 24 1/2
61/2 2 3/4 6 1/4 10 1/4 25 1/2
71/2 2 3/4 6 3/8 10 1/2 26 1/2
81/2 2 3/4 6 1/2 10 7/8 27 1/2
91/2 2 7/8 6 5/8 11 1/8 28 1/2
10 1/2 2 7/8 6 3/4 11 3/8 29 1/2
11 1/2 2 7/8 6 7/8 11 3/4 30 1/2
12 1/2 3 7 12 31 1/2
13 1/2 3 7 1/8 12 1/4 32 1/2
14 1/2 3 7 1/4 12 5/8 33 1/2
16 1/2 3 1/8 7 5/8 13 1/8 35 1/2
18 1/2 3 1/8 7 7/8 13 3/4 37 1/2
20 1/2 3 1/4 8 1/8 14 3/8 39 1/2
22 1/2 3 1/4 8 3/8 14 7/8 41 1/2
24 1/2 3 3/8 8 5/8 15 1/2 43 1/2
26 1/2 3 3/8 8 7/8 16 1/8 45 1/2
28 1/2 3 1/2 9 1/8 16 3/4 47 1/2
30 1/2 3 1/2 9 1/2 17 1/4 49 1/2
32 1/2 3 5/8 9 3/4 17 7/8 51 1/2
34 1/2 3 3/4 10 18 1/2 53 1/2
36 1/2 3 3/4 10 1/4 19 55 1/2
TABLE 8d - Minimum (2) Elbow Offsets - DIS4
Dimensions are in inches
Diameter
Ø (in.) 3° 15° 30° 45° 90°
51/2 2 5/8 5 1/2 8 3/4
20 1/2
61/2 2 5/8 5 3/4 9 1/8
21 1/2
71/2 2 5/8 5 7/8 9 3/8
22 1/2
81/2 2 5/8 6 9 5/8
23 1/2
91/2 2 3/4 6 1/8 10
24 1/2
10 1/2 2 3/4 6 1/4 10 1/4
25 1/2
11 1/2 2 3/4 6 3/8 10 1/2
26 1/2
12 1/2 2 3/4 6 1/2 10 7/8
27 1/2
13 1/2 2 7/8 6 5/8 11 1/8
28 1/2
14 1/2 2 7/8 6 3/4 11 3/8
29 1/2
16 1/2 3 7 12
31 1/2
18 1/2 3 7 1/4 12 5/8
33 1/2
20 1/2 3 1/8 7 5/8 13 1/8
35 1/2
22 1/2 3 1/8 7 7/8 13 3/4
37 1/2
24 1/2 3 1/4 8 1/8 14 3/8
39 1/2
26 1/2 3 1/4 8 3/8 14 7/8
41 1/2
28 1/2 3 3/8 8 5/8 15 1/2
43 1/2
30 1/2 3 3/8 8 7/8 16 1/8
45 1/2
32 1/2 3 1/2 9 1/8 16 3/4
47 1/2
34 1/2 3 1/2 9 1/2 17 1/4
49 1/2
36 1/2 3 5/8 9 3/4 17 7/8
51 1/2
TABLE 8c -Minimum (2) Elbow Offsets - DIS2
Dimensions are in inches
19 NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
INCREASERS AND REDUCERS
Frequently, a diameter change is required in a chimney installation. To accomplish such
a size change, a step increaser or tapered increaser may be used. These parts are
usually used to provide an increase of size, as the name implies. However, the Tapered
Increaser can be turned to Tapered Reducer to reduce the size of a run. Extreme caution
should be exercised when reducing the size of a chimney. The resultant pressure
drop may cause the chimney to mis-function and cause spillage of flue gases into the
mechanical room.
The step increaser should be used when the length of run available for the size change
is restricted. The step increaser is a non-structural part and must not be subjected to
loading in either the axial or lateral direction.
TAPEREDINCREASER(TINØ)andTAPERED REDUCER(RDØ)
The Tapered Increaser Adapter is used for a diameter change in duct system. Uses when
there is a sufficient length for duct run available for the size change. The TINØ uses 2” of
length per 1” increment diameter change. The TINØ is considered to have the same load
strength as a straight duct. See Figure 37.
Removable
Alignment
Sleeve
Figure 37 - Tapered Increaser
Adapter (TINØ)
Figure38-ECCENTRICTAPERED
 INCREASER(ETINØ)
ECCENTRIC TAPERED INCREASER (ETINØ)
The Eccentric Tapered Increaser Adapter is similar as the Tapered Increaser Adapter
except the smaller diameter is offset from the larger diameter. When installed horizontally,
the ETINØ keep a flat slope unlike the TINØ. See Figure 38.
STEP INCREASER (INØ)
The Step Increaser (INØ) should be used when the length of run available for the size
change is restricted. The step increaser is a non-structural part and must not be subjected
to loading in either the axial or lateral direction. See Figure 39.
Figure 39 - STEP INCREASER (INØ)

20 NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
ANCHOR PLATE (AP)
Anchor Supports are designed to provide support to vertical sections and provide fixed-
point support for horizontal sections. See Figure 40
NOTE: Rings installed at 90
° to plates.
The Plate Support must be attached to the building structure or supported with rigid
structural members. See Table 3 for maximum supported height.
A Plate Support is to be attached only to non-combustible construction such as block,
concrete or steel with clearance that is adequate for installation and access.
For maximum support, the entire perimeter of the Plate Support must be attached to
structural framing. Structural members are supplied by the installer.
Plate Support
Clamp Ring
PLATEANDWALLSUPPORT
Figure40-AnchorPlate
WARNING: RISK OF FIRE - DO NOT ATTACH THE PLATE SUPPORT TO
COMBUSTIBLE CONSTRUCTION
Figure41a-AnchorPlateonFraming
Figure42-AnchorPlateHorizontalBracing
Supported duct sections subject to thermal expansion or in a vertical position must be
braced with diagonal members or gussets to prevent deflection of the supported joint
as shown in Figure 42.”X” is a minimum of 30°.
Figure41b-DetailofAnchorPlateonFraming
Plate Supports are usually located adjacent to fittings, such as tees or elbows,to protect
fitting from expansion stresses. Table 9 shows Plate Support, bracing and framework
requirements for duct size ranges.
NOTE: If bracing is used, minimum ”X” angle is 30°. If there is no
bracing, the framework must be attached to structural members
to provide equivalent rigidity.
Duct Diameter
Ø (in)
Plate thickness
(in)
Bracing
(in)
Framework
(in)
Ø5 @ Ø22 3/16
2 x 2 x 3/16
Channel or
equivalent
2 x 2 x 1/4
Channel or
equivalent
Ø24 @ Ø36 1/4
3 x 3 x 1/4
Channel or
equivalent
3 x 3 x 1/4
Channel or
equivalent
TABLE 9 - Minimum Acceptable Size for Framework and Bracing for all Models
Dimensions are in inches