M&G DuraVent DuraStack User Manual

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Installation Instructions

A Modular Double-Wall Positive Pressure Chimney System. Factory Built for Boiler Breeching, Engine Exhaust, and Chimney Stack. Grease Duct (DIS only)

DuraStack

DIS/DAS

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A MAJOR CAUSE OF VENT RELATED FIRES IS FAILURE

TO MAINTAIN REQUIRED CLEARANCES (AIR SPACES) TO

COMBUSTIBLE MATERIALS. IT IS OF THE UTMOST IMPORTANCE

THAT POLYPRO® BE INSTALLED ONLY IN ACCORDANCE WITH

THESE INSTRUCTIONS.

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 in carbon monoxide poisoning or death.

WARNING

Risk of carbon monoxide poisoning or re due to joint separation or pipe breakage.

• Examine all components for possible

shipping damage prior to installation

• Proper joint construction is essential

for a safe installation. Follow these instructions exactly as written.

• This venting system must be free to

expand and contract.

• This venting system must be supported

in accordance with these instructions.

• Check for proper joint construction

when joining pipe to ttings.

• Check for unrestricted vent movement

through, walls, ceilings, and roof penetrations.

• Dierent manufacturers have dierent

joint systems and adhesives. Do not mix pipe, ttings or joining methods from dierent manufacturers.

IMPORTANT

Read through all of these instructions before beginning your installation. Failure to install this product as described in these instructions will void the manufacturer’s warranty, may create a re or other safety hazard, and may aect your homeowner’s insurance and safety listing of your appliance.

Keep these instructions for future reference.

Dear Customer, Installer, or End User:

We welcome any comments regarding matters pertaining to our DuraVent products. We welcome any ideas, input or complaints to help improve our product oering. Send your emails to: president@duravent.com

If you are searching for tech support or product information, please phone us at 800-835-4429. Or email us at: techsupport@duravent.com

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Double Wall Construction Positive Pressure Chimney System

For the most up-to-date installation instructions, see www.duravent.com

CONTENTS

INTRODUCTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . 4

TESTING/LISTING INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . 4

SECT ION A: GENERAL INFORMATION . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . 4

SECT ION B: TEES, EL BOWS, INCRE ASERS. . . . . . . . . . . . . . . . . . .. . . . . . . . . .. . . 12

SECTION C: STRUCTURAL SUPPORT AND GUIDING. . . . . . .. . . . . . . . . . . . .16

SECTION D: ROOF AND WALL PENETRATIONS. . . . . . . . . . . . .. . . . . . . . . .. . . .22

SECTION E: TERMINATIONS, STARTING ADAPTORS, DRAIN LENGTH AND

RELIEF VALVE . . . .. . . . .. . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . .24

SECT ION F: THERMAL EXPANSION. . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27

SECTION G: GREASE DUCT APPLICATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

PRODUCT REFERENCE INFORMATION. . . . . . . .. . . . . . . . . . . . . . . . . . . . . .. . . .38

SECTION H: MARKINGS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39

WARRANTY. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40

DuraStack

DIS/DAS

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INTRODUCTION

DuraVent Model DuraStack DIS or DAS Chimney are cylindrical, prefabricated, modular venting systems incorporating a unique extended inner ange designed for both quick assembly and pressure sealing capability. Model DIS incorporates a 2” of mineral ber insulation while DAS is air insulated. The circular cross section and high quality stainless steel inner ue construction provide for a system with high strength-toweight ratio and low friction losses.

TESTING / LISTING INFORMATION

DuraVent model DIS and DAS venting systems are listed with Intertek Testing Services (ETL) to UL/ULC standards: U.S.A.

• UL-103

- 60 in. Positive Pressure Chimney

- Building Heating Appliance Chimney

- 1400°F Chimney

• UL-1978 Grease Duct (DIS only) CANADA

• ULC/ORD C959

- 540°C (1000°F)

- 760°C (1400°F)

• ULC S604

Models DuraStack DIS and DAS are code compliant when installed as per the Installation Instructions with : NFPA211; NFPA31; NFPA37; NFPA96 and CSA-B149

When installed in accordance with it’s installation, Models DuraStack DIS and DAS comply with the following codes:

- NFPA (National Fire Protection Association)

- SBCCI (Southern Building Code Congress International)

- ICBO (International Conference of Building Ocials)

- BOCA (Building Officials and Code Administrators)

- ICC (International Code Congress)

SECTION A  GENERAL INFORMATION

These instructions comprise both general guidelines and special requirements for all parts in the product line. Before specifying a design or beginning an installation please carefully review these instructions.

IMPORTANT

Chimney Cleaning: This applies to cleaning other than standard natural gas chimney applications where minimal maintenance is necessary. Keep your chimney clean. Access should be provided for the inspection and cleaning of all sections of the chimney. Have your chimney cleaned by qualied chimney sweep. It is recommended to use a nylon chimney brush of the correct size. Do not use a brush that will scratch the stainless steel interior of the chimney.

FEATURES

Models DIS and DAS are prefabricated modular venting systems design for industrial and commercial applications. It has a unique extended inner ange for both quick assembly and pressure sealing capability. It is a double wall construction with 2” of mineral ber insulation for DIS and 2” air space for model DAS. The inner ue is made of high quality stainless steel plasma welded.

APPLICATION UL 103 Building Heating Appliance Chimney Listing:

Under this category, models DIS and DAS have been determined suitable for venting ue gases at temperatures not exceeding 538°C (1000°F) under continuous operating conditions from gas, liquid, oil or solid fuel red 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

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Appliances and Low Heat Appliances as described in the Chimney Selection Chart of National Fire Protection Association (NFPA) Standard NO. 211.

UL 103 1400°F Chimney Listing:

Under this category, models DIS and DAS have been determined suitable for venting ue gases at temperatures not exceeding 760°C (1400°F) under continuous operating conditions from gas, liquid, oil or solid fuel red appliances. Also complies with brief operation (maximum 10 minutes) at temperatures not exceeding 906°C (1700°F). As such, it is suitable for use with ovens and furnaces as described in the Chimney Selection Chart of NFPA No. 211, in addition to other applications.

UL 103 Positive Pressure Listing:

Under this category, models DIS and DAS have been determined suitable for use at a maximum of 60 inch water column internal pressure.

UL 2561 1400°F Chimney Listing

SURROUNDINGS / ENCLOSURE

DuraVent models DIS and DAS chimney are primarily intended to be used in re resistive noncombustible surroundings or installed unenclosed. They are not intended for use in one or two family residences.

CAUTION

Do not enclose this chimney in a chase or passageway of ordinary wood or other combustible material

Where the chimney extends through any zone of a building (outside that in which the heating appliance connected to it is located), it shall be provided with an enclosure having a re resistance rating equal to or greater than that of the oor, wall or roof assemblies through which it passes.

DuraVent models DIS and DIS chimney may penetrate a combustible oor, wall or roof using the appropriate parts and openings sizes. See section D “Roof & Wall Penetration” for more details.

ULC C959 540°C and 760°C Industrial Chimneys Listing:

UL 1978 Grease Ducts Listing (DIS only):

DuraVent model DIS chimney is tested in accordance with UL 1978 Standard and approved for Grease Duct applications when installed in accordance with these installation instructions and National Fire Protection Association standard “NFPA 96, Standard for Ventilation Control and Fire Protection of Commercial Cooking Operations”.

Where, according to local code, no chase enclosure is necessary, models DIS and DAS chimney may be placed adjacent to walls of combustible construction at the clearance specied on each chimney section and in the individual listing; see “CLEARANCES”. Contact local building or re ocials about restrictions and installation inspection requirements in your area.

Grease Ducts (DIS Only)

1. Model DIS grease ducts are primarily

intended for installation in noncombustible surroundings or in unenclosed installations.

2. Where model DIS grease ducts are installed in an open room and an enclosure is not required, the minimum clearance to adjacent combustible walls shall be as shown in this section (see “CLEARANCES”). The ducting may be located in a corner formed by two

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walls of combustible construction, if the conditions above are met.

3. Other interior installations in all buildings should be as follows: a) Where a grease duct penetrates a wall or ceiling rated for re resistance, it should be enclosed with a continuous non-combustible enclosure extending from the lowest rerated ceiling or oor above the hood, through any concealed space, to or through the roof so as to maintain the integrity of the re separations required by the applicable building code provisions. The enclosure shall be sealed around the duct at the point of penetration of the lowest re-rated ceiling or oor above the hood, in order to maintain the re resistance rating of the enclosure and shall be extended to the exterior of the building through weather-protected openings. b) A grease duct penetrating a ceiling, oor or wall which does not have a re resistance rating does not require to be enclosed, if the clearances to combustibles are at the correct minimum for unenclosed installations. c) Where model DIS grease ducts extend through any story of a building above the oor on which the connected appliances are located, they shall be enclosed in the upper stories with walls having a re resistance rating of not less than one hour for buildings of two or three stories. If the building is four stories or more, the enclosure wall shall have a re resistance rating of not less than two hours.

4. Combustible roofs or roof-ceiling assemblies may be penetrated as described in Section D – Roof and wall penetrations.

SYSTEM SIZING

IMPORTANT

Do not enclose with combustible materials.

Refer to NFPA 96, “ Standard For Ventilation Control And Fire Protection Of Commercial Cooking Operations”, for

installation and clearances of re-rated enclosures and denitions.

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.

PART NUMBERS

These instructions identify major model DIS / DAS parts by name and part number.

Table 1

Part Numbers

Example Model Dia. Part Material

DIS 36” length with inside diameter 14” made of ss316 inner ue and ss304 outer casing.

DAS 30° elbow with inside diameter 22” made of ss304 inner ue and galvalume outer casing.

DIS wall support for 8” diameter chimney made of galvalume.

IMPORTANT

Use only factory-supplied components. Failure to do so will void the certication and the warranty of the chimney system.

DIS 14 L36 BC

DAS 22 E30 CE

DIS 8 WS E

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EFFECTIVE LENGTH

When assembling two parts together, the joint will overlap 5/8”. So eective length is nominal length minus 5/8”.

Effective Length

Example Material

L36 35 /"

Table 3

DIS Minimum Openings

Model Roof / Floor (C) Wall (C)

Ø5" - Ø10" Inside Ø + 8" Inside Ø + 8"

Ø12" - Ø36" Inside Ø + 8" Not Listed

L24 23 ⁄"

L18 17 /"

L12 11 /"

CLEARANCES DIS

Minimum air space clearance to combustible construction to model DIS Chimney is 1”. For non-combustible construction, maintain clearances as required for installation, access for inspection or per local code.

DAS

Minimum air space clearance to combustible construction to DAS chimney is 4”.

See Table 2.

Table 2

Clearances

Model B.H.A Chimney 1400°F Chimney

DIS 1" 1"

DAS 4" 4"

OPENING THROUGH COMBUSTIBLE CONSTRUCTION

The following table serves to identify the minimum opening required when installing a chimney through a oor, wall or roof made of combustible material. See Table 3 and Figure 1.

Table 4

DAS Minimum Openings

Model Roof / Floor (C) Wall (C)

Ø5" - Ø10" Inside Ø + 12" Inside Ø + 12"

Ø12" - Ø36" Inside Ø + 12" Not Listed

Chimney Outside Diameter

Chimney Inside Diameter

2" Insulation

Clearance Opening

A B C

WARNING

DO NOT INSTALL ANY TYPE OF INSULATION IN THE REQUIRED CLEARANCE SPACES SURROUNDING THE CHIMNEY.

Openings - Minimum opening required when installing a chimney through

a oor, wall or roof made of

combustible material.

Figure 1

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CHIMNEY AND FITTING JOINT ASSEMBLY

All components have a male and female end. The installation orientation is indicated on the labeling of each chimney section with an arrow. The arrow indicates the direction of the ow. Clean all inner and outer surfaces of the male and female ends with an appropriate organic solvent, such as acetone, Mek, or other commercial degreaser.

1. Apply a bead of S-650 sealant about 1/8” thick around the male end of chimney and for Grease duct application, add a bead of S-2000 sealant at the edge of the female chimney (see Figure 2). See Table 5 for approved sealants.

2. Insert the female end, of another section of chimney, over male end with sealant (see Figure 3).

3. Insert the assembly band (see Figure

4) around the joint of the two sections

assembled in Step 2. A small bead of S-650 can be applied on the inner groove of the band prior to installation for better leak tightness.

4. Using a phillips screwdriver, connect the two ends of the band as shown in Figure 5.

5. Where the chimney is installed outside, an exterior sealant S-375 must be applied at the upper joint of the band and the outer casing, see Figure 5.

Figure 3

Figure 4

Grease Duct Application: Add a

bead of S-2000 sealant at the edge of the female end.

Apply S-375 sealant here for exterior installation.

Figure 5

Add S-650 sealant here.

Figure 2

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Table 5

Sealant Usage

Interior Installation

Sealant

Application

Joints DuraVent S-650 Red 650°F

Inner Flue DuraVent S-2000 White 2000°F

Exterior Installation

Sealant

Application

Joints DuraVent S -650 Red 650°F

Outer Band DuraVent S-375 Gray 375°F

Supplier Model Color

Max.

Temp.

Max.

Temp.

CAUTION

DO NOT ALLOW SCREWS TO PENETRATE THE INNER FLUE. THIS CAN CAUSE CORROSION, GAS LEAKAGE OR EXPANSION FAILURE. NEVER USE SCREWS THROUGH THE OUTER CASING OF AN ADJUSTABLE LENGTH OR EXPANSION JOINT. OBSERVE ADEQUATE SAFETY MEASURES WHEN USING A DEGREASER.

Table 6

Maximum Chimney Heights and Support Method for Model DIS and DAS

Anchor Plate Anchor Plate Ventilated (APV) Wall Support (WS)

Inside Diameter

5 147 133 133 147 61 105

6 128 116 116 128 53 92

8 103 93 93 103 43 74

10 86 78 78 86 35 61

12 73 66 66 73 30 53

14 64 58 58 64 27 46

16 57 52 52 57 24 41

18 53 48 48 53 22 38

20 48 43 43 48 20 34

22 44 40 40 44 18 31

24 37 34 34 37 15 27

26 35 32 32 35 14 25

28 33 30 30 33 13 23

30 31 28 28 31 13 22

32 29 26 26 29 12 21

34 27 25 25 27 11 20

36 26 23 23 26 11 18

Building Metal

Frame

Building Metal

Frame

Building Wood

Frame

Building Metal

Frame

Building Wood

Tee (T)

Frame

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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 C. Certain limitations apply for proper installation of supports and guides. See

Tables 6 and 7.

See Dim. "H" Figure 7

and Chimney Guying and Bracing in this section

MVS

Maximum Height - See Table 6

MVS

Termination

Storm Collar

Roof Support

Wall Guide

Floor Guide

Table 7

Support and Guide Spacing for Model

DIS and DAS (dimensions in feet)

Inside Diameter (in.)

5 10 8 10 12

6 10 8 10 12

8 10 8 10 12

10 10 8 10 12

12 10 8 10 12

14 10 8 10 12

16 10 8 10 12

18 10 8 10 12

20 10 8 10 12

22 10 8 10 12

24 10 8 10 12

26 10 8 10 12

28 10 8 10 12

30 10 8 10 12

32 10 8 10 12

34 10 8 10 12

36 10 8 10 12

MVS*

Interior Exterior

H** MHS***

MVS

Wall Support

Figure 6

IMPORTANT

“MVS ” dimension see Table 7 for Maximum Vertical Spacing between two guides or a support and a guide.

IMPORTANT

When the maximum height from Table 6 is exceeded, resupport using another support and expansion joint.

* MVS: Maximum Vertical Spacing between two guides or a support and a guide in a vertical position. ** H: Maximum freestanding Height above the roof. *** MHS: Maximum Horizontal Spacing between two guides or a support and a guide is 12 feet.

THERMAL EXPANSION

Good installation practice requires that any length of exhaust system between two xed points subject to more than 1/4 inch expansion must have an Adjustable Length (LA) or Bellows Joint (LB) to compensate for expansion. Models DIS and DAS will expand approximately 1 inch for every 100°F temperature rise per 100 feet of chimney. To accommodate chimney movements, any wall guide or oor guide must be located

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away from the locking band. It is essential that these parts be properly installed and provided with adequate support and guidance to prevent binding or excessive bending forces. (See detailed installation

information contained on page 27, Thermal Expansion).

CHIMNEY WEIGHT

Chimney weight is given in pounds per foot of chimney for each diameter. It is important to know the weight of the chimney section for chimney support or guiding. Chimney weight (Table 8) along with maximum chimney height (Table 6) are necessary to calculate the proper anchor strength needed with wall supports (WS), Anchor Plate (AP) supports and Suspension Bands (SB).

Table 8

CHIMNEY GUYING AND BRACING

1. Proper guying and bracing is essential

for part of the chimney that extends above the roof or parapet wall. The chimney at this point is subject to wind conditions and needs special attention for proper stabilization.

2. If the stack above the roof does not exceed dimension H, no special guying or bracing is required. However, to protect the ashing from lateral movement, a guide must be installed at the roof level. See Figure 7).

3. For stack height above the roof that needs guying or bracing, a support, a small length and a expansion length must be installed near the roof level to absorb the thermal expansion and minimise this eect on the guy wires or brace.

Chimney Weight in lb/ft

Inside Diameter Model DIS Model DAS

5 7 4

6 8 5

8 10 6

10 12 8

12 14 9

14 16 10

16 18 12

18 20 13

20 22 14

22 24 15

24 28 19

26 30 20

28 32 21

30 34 23

32 36 24

34 38 25

36 40 27

Example: Model DIS, 6” diameter section of 25 feet in length from table 8, weight in lb/ft = 8. Total weight 8 x 25 = 200 lbs

Guide

Maximum Height See Table 6

Support

No Guying or Bracing Required

Figure 7

IMPORTANT

If Dimension “H” exceeds the value in table 7, use bracing or cable guying to stabilize chimney section above the roof. See Notes

3, 4, 5 and Figure 8.

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Guy Cable * tensioners and roof anchors * (by

others)

See Table 7 for "H" dimensions

Brace

Support

Expansion

Length

Guide

Support

5' Max

Maximum Height

- See Table 6

Figure 8

IMPORTANT

Cables and roof anchors designed for 30 lb. per sq. ft. force on chimney projected area.

feet from any adjacent ridge, wall or parapet, the chimney shall terminate at minimum of 3 feet above the ridge, wall, or parapet.

3. Where chimney terminates at more than 10

feet from ridge, wall, or parapet, a minimum height of 2 feet shall be required above the ridge wall or parapet.

MULTIENGINE EXHAUST SYSTEMS

A common exhaust system for multiple engine or turbine installations is generally not recommended. A separate exhaust system should be provided for each engine or turbine. Check with your engine or turbine manufacturer prior to common exhaust system design. Exhaust gas from operating units tends to ow to non-operating units where condensation may form.

IMPORTANT

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 TEES, ELBOWS, INCREASERS

4. When using guy wire, the cable must

be slightly slack or loose to allow thermal expansion.

5. When using rigid bracing, the maximum vertical height between supports must be reduced to 5’ to compensate thermal expansion.

TERMINATION HEIGHT

Chimneys and vents shall terminate above the roof level in accordance with the following requirements:

1. Five feet above the roof level or any adjacent at roof, wall parapet or air intakes, and/or in accordance with the following NFPA 211 requirements.

2. Where chimney terminates at less than 10

90° TEE (T90)

1. Generally used to connect the horizontal

length from the appliance to the vertical length when clean-outs access or drain is required.

2. 90° should not be used for changing ow direction in diesel or turbine exhaust.

3. For supporting the tee, the preferred location is above the tee (see Figure 9).

4. If it is not possible to suspend the tee, it may be supported from the base (see Figure

10). When this is necessary, a short length should be installed between the tee and the tee cap or Drain-Tee Cap for a good clean-out or inspection access.

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IMPORTANT

If more than 1/4” of thermal expansion is expected between a stationary point and the tee, the use of an expansion length and a two axis support is recommended to minimize bending moments on the tee (see Figure 11 and Table 9).

Table 9

Maximum Allowable Length Between Two

Fixed Points w/o Expansion Length

Gas Temperature Rise Maximum Length Expansion

200°F 12'0'' 0.25"

300°F 8'0'' 0.25"

400°F 6'0'' 0.25"

500°F 5'0'' 0.25"

600°F 4'0'' 0.25"

700°F 3'6'' 0.25"

800°F 3'0'' 0.25"

900°F 2'6'' 0.25"

1000°F 2'0'' 0.25"

Note: 60°F - 70°F ambient T°

45° TEE T45

1. For systems where ow resistance must

be minimized like engine or turbine exhaust. The use of a 45° tee is suggested. It can be combined with a 45° elbow to make a smooth 90° turn (See Figure 12). To support this tee, use similar method as a 90° tee.

2. When using 45° tee to connect multiple appliances together, thermal expansion must be considered. Thus prepared to prevent bending moments on the tee, an expansion length must be installed between the tees (See Figure 13).

Stationary Support

Suspension

Band

Expansion

Length

Stationary Support

More than ¼" of expected thermal expansion between two

stationary points

Wall

Support

Tee

Tee Cap or Drain Tee Cap

Figure 9

Lengths

Tee

Wall

Support

Short Length

Tee Cap or Drain Tee Cap

Figure 10

Figure 11

Figure 12

Page 14

45°

Tee

Expansion

Length

Increaser

Stationary Fix Support

Tee Cap

Drain-Tee Cap

Appliance

Appliance Appliance

Figure 13

45° Tee Y

45° Elbow

Increaser

Expansion

Length

Appliance

Figure 14

45° TEE Y TY

1. This kind of tee is useful where the stack

is located between two application or with a double exhaust system. Use the same support method and thermal expansion considerations from the other tees (See

Figure 14).

Figure 15

Ø B

Ø A

* See Table 10

Ø B

Ø A

Figure 16

Table 10

Tapered Increaser Height

Step 1" Diameter 2" Diameters 3" Diameters

C 4" 8" 12"

4. When removed, the old silicone must be cleaned out and a new bed of sealant must be applied.

DRAINTEE CAP DTC

1. Use as a drain for vertical stack.

2. Connect to a suitable drain tting to allow

rain entering the chimney to wash down, dilute and remove any corrosive residue.

3. Same installation as a tee cap.

TEE CAP TC

1. Use to block one of the openings of

horizontal or vertical tee.

2. Removable, it facilitates access for inspection and maintenance of the chimney.

3. The installation is the same as for lengths.

INCREASER, STEP OR TAPERED

1. Use to increase the diameter of the

chimney ue.

2. The tapered increaser induce less pressure drop than the step increaser, but requires more space. It has a 15° side angle and

Page 15

provides increases of one, two or three size. The height of the tting varies depending on the diameters to be increased (see Figure 17).

3. The tapered increaser have the same load strength as a standard length, but the step increaser is a non-structural part and must be protected from axial and lateral load.

ELBOWS

1. Elbows are used for changes in direction in

horizontal or vertical portions of a chimney system.

2. All elbows feature the standard joint assembly as described in Section A - Chimney

and Fitting Assembly.

3. Elbows are used in combination to make dierent angles ranging from 3° to 90° in horizontal and vertical breechings of the chimney system.

4. Elbows are not designed to take bending loads and must be structurally supported (see Figure 17). Structural parts such as posts or beams may also be needed to hold chimney supports in position.

OFFSETS

1. Sloped or horizontal osets in the vertical

portion of a chimney above the breeching should be avoided except where absolutely necessary.

2. Sloped osets require more expansion joints and secure bracing above and below elbows.

3. With solid fuel burning appliance, the slope must not be greater than 30° from the vertical. Appliances which are capable of burning solid fuel or are convertible to solid fuel are limited to the same 30° slope.

4. The length of the oset is determined by strength considerations. The maximum dimension between supports, given as the MHS dimension in Table 7, is applicable to all horizontal and sloped orientations (see Figure 18)

5. The minimum oset is accomplished with two elbows directly connected to each other (see Figure 33 and Table 9).

6. With frequent re-support, there is no structural

2x 45°

Elbow

Anchor Plate

and Frame

Wall Support

Expansion

Length

Figure 17

MHS

Figure 18

or operating limit to the length of horizontal or sloped portions of model DIS chimney, providing the system meets the capacity, pressure drop of available equipment.

7. The carrying capacity of supports and their structural attachments must take into account the weight of the oset plus whatever vertical chimney is carried by that support.

8. Height limits for supports ar tabulated in Section A of these instructions.

Page 16

Offset *

* See Table 11

Figure 19

Table 11

Minimum Offset

Ø 3° 15° 30° 45°

5" n/a 1 /" 3 /" 5 /"

6" n/a 1 /" 3 /" 5 /"

8" n/a 1 ½" 3 ¾" 6 ½"

10" n/a 1 /" 4" 7 /"

12" n/a 1 /" 4 ¼" 7 /"

14" n/a 1 /" 4 ½" 8 ¼"

16" n/a 1 ¾" 4 /" 8 /"

18" n/a 1 /" 5 /" 9 /"

20" n/a 1 /" 5 /" 10"

22" n/a 2" 5 /" 10 /"

24" n/a 2 /" 5 /" 11 /"

26" n/a 2 /" 6 /" 11 ¾"

28" n/a 2 /" 6 /" 12 /"

30" n/a 2 ¼" 6 ⁄" 12 /"

32" n/a 2 /" 6 /" 13 ½"

34" n/a 2 /" 7 /" 14 /"

36" n/a 2 /" 7 ½" 14 /"

9. The ends of any sloped or horizontal oset must be anchored to prevent overstressing elbows and to assure proper operation of expansion joints.

10. The vertical sections of chimney above the oset must also be supported or anchored and guided where necessary.

11. Models DIS and DAS Roof Support (RS), Wall Support (WS), Wall Guide (WG) may be used in a variety of ways for oset support to achieve the structural stability of the chimney system. Preferred methods of using model DIS and DAS supports are shown in Section C.

12. Re-supports such as those shown in Figure 30 must be securely anchored to walls, posts, or locally fabricated rigid framework. This framework must be designed to assure stability of attached model DIS supports, such as Anchor Plate (AP) supports and Wall Supports (WS).

13. Supports suspended by threaded rods or from small size angles or straps are usually not satisfactory to resist bending moments due to osets.

SECTION C STRUCTURAL SUPPORT AND GUIDING

ANCHOR PLATE SUPPLY

1. The anchor plate support assembly is

designed to provide maximal support to vertical sections and to provide xed point support for horizontal sections.

2. The plate support must be attached to the building structure or supported with rigid structural members (see Figure 21 and Table 12 for bracing dimensions)

3. DO NOT ATTACH THE ANCHOR PLATE TO COMBUSTIBLE CONSTRUCTION. If

unavoidable, use the Ventilated Anchor Plate support assembly.

4. The anchor plate consists of a plate and eight clamp ange. See Figure 20 for sectional details for plate support.

5. IMPORTANT: The surfaces of the male and female couplings in contact with the plate of

Page 17

Table 12

Bracing DIS/DAS

I.D. Framework Bracing

5" - 20" 3" x 2" x /" 2" x 2" x ¼"

22" - 36" 4" x 2" x ¼" 3" x 3" x ¼"

the anchor plate assembly must be coated with inner joint sealant.

6. There are two ways of assembling parts on the support. You may choose your method depending on your situation.

6.1 The rst method consists of assembling two parts and the anchor plate on the side and then installing this assembly on the support structure. This method is easier and faster to install, but requires enough clearance to insert the complete assembly through the support structure opening. If there is a tee or elbow upstream of the anchor plate, you may not have enough clearance. Also consider the weight of the assembled parts and make sure you have a safe manner of lifting the assembly.

Installation Steps for First Method refer to Figure 22

1. Place the part that will be upsteam of the support on the oor.

2. Apply a bead of inner joint sealant on the male coupling ange.

"X"

Figure 21

IMPORTANT

Height Limits - See Section A, Table 6 for maximum support height of Anchor Plate (AP).

IMPORTANT

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.

Sealant

Bead

Method #1-

Step 1 and 2

Sealant

Bead

Method #1-

Step 3 and 4

Figure 20

Method #1-

Step 5

Figure 22

Method #1-

Step 6

Method #1-

Step 7

Page 18

3. Slide the plate of the anchor plate support over the coupling.

4. Apply a second bead of sealant on the plate around the male coupling where the ange of the female coupling of the next part will mate.

5. Place the second part over the plate. Make sure the sealant completely lls joints between the plate and the female coupling.

6. Use eight clamp anges and bolts to tightly clamp the parts to the support.

7. Insert the assembly on the support structure and x the plate to the structure using the supplied hardware.

6.2 The second method is applicable when the plate of the anchor plate support needs to be installed rst, as when there is a tee or elbow upstream of the support. May require at least two persons to complete the installation.

INSTALLATION STEPS FOR SECOND METHOD (refer to gure 23)

1. Fix the plate of the anchor plate support to

the structure using the supplied hardware.

2. Apply a bead of inner joint sealant on the

Sealant

Bead

male coupling ange of the part before the support.

3. Insert the male coupling of the part in the plate opening.

4. You may hold it using two clamp anges placed at 180° and bolted to the anchor plate.

5. Apply a bead of sealant on the plate around the male coupling.

6. Place the second part over the plate. Make sure the sealant completely lls the joint between the plate and the female coupling.

7. Fix the assembly by clamping it with four clamp anges on the unused ange positions.

8. Remove the rst two clamp anges and nish clamping the assembly.

VENTILATED ANCHOR PLATE APV

1. Use for same application as the anchor plate,

but can be attached to combustible construction.

2. Usually uses as roof support. See Section D for details on how to install at the roof level.

3. Installation is done the same manner as the anchor plate.

4. See Figure 24 for opening dimensions through combustible construction.

5. Do not block or obstruct openings in the plate. They are intended to minimize heat accumulation.

Method #2-

Step 1

Method #2-

Step 3 and 4

Method #2-

Step 6 and 7

Method #2-

Step 2

Method #2-

Step 5

Method #2-

Step 8

I.D. + 8" (DIS)

I.D. + 12" (DAS)

Figure 24

I.D. + 8" (DIS)

I.D. + 12" (DAS)

Figure 23

Page 19

WALL SUPPORT WS

1. The wall support consists of an Anchor Plate

and a prefabricated frame with mounting brackets and angled struts for bracing.

2. Used to support the chimney in vertical runs, it maintains the chimney at an adjustable distance between 2-1/2” and 7-1/2” from the wall (see

Figure 25).

3. The maximum weight allowable on the wall support depends if the support is attached to a metal structure or a wood structure (see Table

6 for maximum chimney height).

4. The installation begins by attaching the frame of the wall support to a rigid metal or wood structure. Adjust the braces to have a minimum of 45° angle from horizontal. Once the frame of the wall support is xed to a rigid structure, the installation is the same as the Anchor Plate.

Height Limit - See Section A, Table 6 for maximum height of Wall Support (WS)

WALL GUIDE WG

1. The wall guide is used as a lateral guide to resist

lateral or side load only, it is not designed for carrying the weight of a vertical chimney. It also ensure a minimum clearance of 1” to combustibles for model DIS and 4” for model DAS. See Figure 26 (wall guide).

2. The proper location to install the wall guide is immediately below a locking band. The locking band must be able to move without interfering with the guide when thermal expansion occurs.

See Figure 27 (wall guide location).

3. The wall guide can be installed with a wall band

Adjustable Braces

45° Min.

1 (25mm)

Figure 26

extension for greater clearances up to 4-1/4” for model DIS and up to 7-1/4” for DAS. See Figure 28

(wall guide extension).

4. Special considerations must be taken when installing on exterior wall. A wall guide must be installed between 6’ and 10’ below the highest wall support to stabilize the free standing portion of the chimney. Do not install a expansion length in this area due to bending forces induced by the freestanding portion. See Figure 29 (special

considerations).

FLOOR GUIDE FG

1. The oor guide is used the same manner as the wall guide but it is modied for use at oor penetrations. See Figure 30 (oor guide).

SUSPENSION BAND SB

1. Suspension band is used to support and

guide the chimney in horizontal runs. It consists of a band, a exible strap (by others), a trolley and a rail.

2. The trolley and rail allow up to 4” of travel to compensate thermal expansion.

3. See Section A, Table 7 for maximum distance between two supports or guide.

4. Important: The exible strap must be at least 3/4” wide and 0.036” thick made of galvanized or stainless steel. YOU MUST USED TWO LAYERS OF FLEXIBLE STRAP to attach the band to the trolley.

Figure 25

Page 20

Wall Guide

MVS

Freestanding = H max

Do not install

expansion length

in this area

6' to 10'

Wall Guide

Wall Support

Figure 27

2" to 4¼"

(51mm to 108mm) (DIS) 5" to 7¼" (127mm to 184mm) (DAS)

MVS

Wall Guide

Expansion Length

Figure 29

Figure 30

I.D. + 8" (DIS)

I.D. + 12" (DAS)

I.D. + 8" (DIS)

I.D. + 12" (DAS)

Figure 28

Page 21

Rail

Trolley

Flexible Strap 2x Layer (By others)

Figure 31

Travel

Thermal

Expansion

Direction

Band

ROOF BRACE RB

1. The roof brace is used to stabilize the

chimney where it extends more than 15’ above the roof.

2. It consists of one band (RB) and two braces (supplied by the installer).

3. To minimize loads induced by thermal expansion on braces and support, the maximum distance between the last xed support and the band of the roof brace must be reduced to 5’.

4. Begin by attaching the braces to the band with supplied bolts and nuts. Next, install the

Rods (by other)

Cradle Support

Figure 32

CRADLE SUPPORT CS

1. Cradle support is used to support and

guide the chimney in horizontal runs. It consists of a cradle support and suspension rod (by others).

2. The suspension rods must attached to the structural members to provide rigidity.

3. Cradle support allows to stack two (or more) horizontal chimney runs (See Figure 32).

4. Cradle support does not allow movement for thermal expansion This support should be used for low temperature application.

5' Max

Fixed Support

120°

Figure 33

1 ¼" Rigid

Galvalume Tube or

1½" x 3/16" angle iron (by others)

Page 22

band on the chimney and tighten the band. Fix the braces to the roof at 120°. Make sure you have a rigid structure on the roof.

GUY WIRE GW

1. The guy wire is used where the chimney

extends more than 15’ above the roof.

2. It consists of a band designed to receive 3 guy wire (supplied by others) at 120° apart or 6 guy wire at 60° apart for diameter larger than 24”. The guy wires are xed to the roof by mean of tensioner and anchor (also by others).

3. When installing guy wire, the cable must be slightly slack or loose to allow thermal expansion or be equipped with tensioning springs (by others). The tensioning springs are mandatory only when there is more than one level of guy wire needed.

4. To minimize the eect of thermal expansion, good practice implies installing a xed support and an expansion length at the roof level (see Figure 34 ’guy wire’).

SECTION D  ROOF AND WALL PENETRATIONS

ROOF/FLOOR PENETRATION

1. The roof/oor penetration consist of a

restop radiant shield (FS), a ashing (F) with a storm collar (SC) and a oor guide (FG) or ventilated anchor plate (APV) (see Figure 35

roof/oor penetration).

2. Those components allows the chimney to penetrate a combustible roof or oor at 2 inches clearance to combustible. See Table 3

– Minimum openings for framing dimension.

3. The radiant shield of the restop may need to be trimmed to t the height of the roof. Nominal height is 10 inches.

4. Roof/oor penetration components are designed to be installed on a at roof. They may be installed on a pitch roof if a curb is installed to provide a at surface.

5. Floor guide is used to protect the ashing from lateral movement. The ventilated anchor plate is used to protect the ashing and to provide a re-support.

Guy Cable

* tensioners and roof anchors * (by others)

Expansion Length

Guy Wire Band

Fixed Support

Figure 34

IMPORTANT

Cables and roof anchors designed for 30 lb. per sq. ft. force on chimney projected area.

6. Do not install a chimney joint or a expansion length in the roof/oor space.

7. For installation on non-combustibles materials, the minimum opening can be reduced to I.D. + 6 inches. The anchor plate can also be used instead of the ventilated version.

8. Always seal, with outer joint sealant, between storm collar and outer chimney casing.

9. Installation step: a. Cut opening to dimensions specify in Table 3. b. Install the Firestop under the roof/oor

and attach it with screw.

c. Slide DIS / DAS chimney trough the restop. d. Install the oor guide or the ventilated

anchor plate on top of the roof/oor. e. Install ashing over the chimney and the guide/support and screw it. f. The storm collar is placed around the chimney and sealed to the casing with outer

Page 23

Storm Collar

Floor Guide

or Ventilated Anchor Plate

Sealant

Flashing

Combustible

roof/oor

half into the opening and x it. d. Insert the chimney trough the opening of the wall restop. Make sure there is no chimney joint or expansion length in the wall opening. e. The chimney section must be well supported and guided to prevent any load on the wall restop.

No joint or

expansion length

in this area

Firestop Radiant Shield

2" Clearances (DIS) 4" Clearances (DAS)

Figure 35

joint sealant. The storm collar should not quite rest on the ashing when the chimney is cold (1/4” gap between the collar and the top of the ashing).

WALL PENETRATION

1. This part is used to allow model DIS /

DAS chimney to pass trough a wall made of combustible construction.

IMPORTANT

Crossing a combustible wall is not permitted for diameters larger than 10” inside diameter.

2. The wall penetrator (FSW) consist of a restop female half and a male half that slide in each other to adjust wall thickness from

7.8” to 12.1”, see Figure 36.

3. Installation step: a. Cut opening to dimension indicated in

Table 3.

b. Slide the restop female half into the opening and x it to the wall with screws. c. On the other side of the wall, slide the male

Firestop Female Half

Chimney Length

Firestop Male Half

Figure 36

Page 24

SECTION E  TERMINATIONS, STARTING ADAPTORS, DRAIN LENGTH AND RELIEF VALVE

STARTING ADAPTORS Single Wall Adaptor (SWA)

1. The Single Wall Adaptor is used as an

appliance connector. It is designed to be clamped with a Retaining Band and a locking band over a shank type ue gas outlet.

2. First, slide the retaining band over the appliance outlet and tighten it with supplied bolt. (See Figure 37).

3. Add a bead of sealant about 1/8” on the ange of the retaining band and one on the ange of the adaptor (SWA) and mate those two anges together. Be sure to ll all the gaps with S-2000 sealant. (See Figure

38 and Figure 39).

4. Tighten the Locking Band to hold and seal the adaptor in place. See Figure 40 for typical installation.

ANSI Flange Adaptor (FA)

1. The Flange Adaptor (FA) is intended for use

as a connection to a class 125 or 150 ANSI pipe ange.

2. This type of connection requires a ange gasket and bolt set provided by the installer. The gasket and bolts are typically sold by pipe, valve and ttings houses as ‘NBG’ set. Figure 41 illustrates a typical installation.

3. An outer band with insulation is included to close the installation.

Flanged Adapter (FHA)

1. The Flanged Adaptor (FHA) is used to connect the DIS / DAS chimney to anged appliance outlets other than those with ANSI pipe anges.

2. The adaptor is designed to sandwich an 1/2 inch ange between two half ring and the appliance anged outlet. The Flange Adaptor comes with beam clamps to clamp the FHA to the appliance. See Figure 42.

Insert and Tighten the Band in Place

Figure 37

Inlet

Figure 37a

Apply Bead

of Sealant

Appliance Outlet

Figure 38

Inlet

Apply Bead

of Sealant

Figure 38a

Appliance Outlet

Insert and Tighten the Band in Place

Page 25

Insert the Coupling End

Inlet

Appliance Outlet

Figure 39

DIS/CT, CT/DIS, DAS/CT, CT/DAS Adapter

1. Used to connect model DIS / DAS chimney to model CT chimney. See Figure 43.

OTHER ADAPTORS Female Single Wall Adaptor (FSWA)

1. The Female Single Wall Adaptor is used as a connector to specialised component or existing chimney connection. It is designed to be clamped with a Retaining Band and a locking band over a shank type ue gas inlet.

2. First, slide the retaining band over the system inlet and tighten it with supplied bolt.

(See Figure 37a).

Flange Adaptor

Figure 39a

Tighten the Locking Band

Appliance Outlet

Figure 40

Inlet

Tighten the Locking Band

Figure 40a

Insert the Coupling End

Bolts and Nuts

(by other)

Gasket

(by other)

ANSI 125 or 150 pipe ange

Appliance Outlet

Figure 41

Flange Adaptor

Half Ring

Beam Clamp

Appliance Flanged Outlet

Figure 42

CT Female Connection DIS / DAS Male Connection

DIS / DAS Female Connection

CT Male Connection

Figure 43

Page 26

38a and Figure 39a).

4. Tighten the Locking Band to hold and seal the adaptor in place. See Figure 40a for typical installation.

Optional

Bird Screen

5" - 10" Ø 12" - 18" Ø

Female ANSI Flange Adaptor (FFA)

1. The Female Flange Adaptor (FFA) is

intended for use as a connection to a class 125 or 150 ANSI pipe ange.

3. An outer band with insulation is included to close the installation.

Female Flanged Adaptor (FFHA)

1. The Flanged Adaptor (FFHA) is used

to connect the DIS chimney to anged appliance outlets other than those with ANSI pipe anges.

2. The adaptor is designed to sandwich an 1/2 inch ange between two half ring and the appliance anged outlet. The Flange Adaptor comes with beam clamps to clamp the FFHA to the appliance. See Figure 42.

IMPORTANT

Installation of model DIS / DAS chimney can be completed without any terminations if not necessary.

TERMINATIONS Rain Cap (RC)

1. Installed at the top of the chimney, it

provides the greatest degree of rain protection.

2. Three models of rain cap are available dependently of the diameter, see Figure 44.

20" - 36" Ø

Figure 44

3. Do not use with turbine or engine exhaust.

4. Installation is done the same manner as a

standard length except for model 3. For this model, there are 3 additional steel straps to be screwed to the chimney outer casing to ensure resistance to high wind.

Finishing Cone (FC)

1. Used to create a better draft when installed

at the top of the chimney, see Figure 45.

2. Requires a drain at the bottom of the stack to collect rain entering the chimney.

3. Installation is done as a standard length.

Flip Top (FT) (DIS only)

1. Used in diesel or turbine exhaust, it

prevents moisture and debris from entering the system. See Figure 46.

2. Flip top opens with internal pressure and closes when no pressure.

3. Install as a standard length.

Miter Cut (MC)

1. Used in diesel or turbine exhaust as an

horizontal termination. See Figure 47.

2. Installation is done as a standard length.

DRAIN LENGTH Drain Length (DL)

1. Used to drain rain or condensate from

the chimney.

2. The chimney ue is equipped with an

Page 27

Figure 45

Flip Top

Figure 46

Bird Screen

Figure 47

Trap Height Equal to Max

Appliance Outlet Pressure

Figure 48

Better Draft

Drain Length

Drain

Drain Tubing

(by others)

annular catch ring and a 1” NPT nipple extending through the outer casing for attachment of drain tubing.

3. The drain tubing should include a water trap of a height at least equal to the maximum expected operating pressure at the appliance outlet to avoid allowing ue gases to vent through the drain. See Figure 48.

4. Drain length should be installed indoors to prevent freezing.

RELIEF VALVE DIS ONLY Relief Valve (RV)

1. The relief valve is intended for use with diesel

engines to provide extra protection to the chimney in case of a delayed ignition of backre.

2. The connection of the Relief valve and the DIS chimney is done with the use of the ANSI Female Flange Adaptor (FFA).

3. The valve is factory calibrated to open at 27 in. wc.

4. The relief valve must be supported independently of the rest of the exhaust system. The best way to accomplish this is to locate an Anchor Plate (AP) support at the joint between the ANSI Flange adaptor and the adjacent tting. See Figure 49.

5. It is crucial that the support be properly secured to building structure so that it can withstand the forces generated in case of delayed fuel ignition.

6. It must be installed in combination with a Tee 45° Relief Valve (T45RV).

SECTION F  THERMAL EXPANSION Thermal Expansion :

1. When Model DIS / DAS is in use, thermal expansion will occur on the inner ue and outer casing.

2. A good estimation for thermal expansion is approximately 1” per 100’ chimney length per 100°F rise. Thermal expansion [inch] = (length[feet]/100)x(ΔT[°F]/100)

3. Thus, the thermal expansion is dependant on the inner ue temperature and the length of the chimney between two (2) xed points.

Page 28

Flue Direction

the Adjustable Length (LA).

11. Spacing of guides and supports, when a thermal expansion part is used, should not be greater than that specied in Section A,

Table 7.

12. Proper guiding and support of expansion parts often requires closer spacing.

Relief

Valve

ANSI Female Flange Adapter

Tee 45 RV

Anchor Plate in frame by others

Figure 49

4. Good installation requires that expansion greater that 1/4” must be compensated with either a bellow joint (LB) or an adjustable length (LA). Depending on the pressure of the system.

5. Tees and elbows are not designed to withstand bending moment, make sure to compensate thermal expansion before connecting to a tee or a elbow.

6. Expansion joints are not designed to withstand lateral forces so they must be accurately supported and guided.

7. Because the amount of outer casing movement is the same as the inner ue, the outer casing must slide to avoid excessive forces on tees, elbows or xed points. To accommodate outer casing movements, wall guide, oor guide and suspension bands must allow movement of the chimney.

8. When supporting a system with considerable height and thermal expansion, adjustable lengths or bellow joints must be used just below every xed support above the rst to compensate for thermal expansion.

9. For engine or turbine exhaust system requiring pressures up to 60 inches of water column, or where the construction must be absolutely gas tight, all welded bellows length (LB) are recommended for expansion and vibration movements of the exhaust.

10. Low pressure systems, such as boilers (up to 6 inches water column), can eectively use

EXPANSION JOINTS INSTALLATION

Bellows Expansion Joint (LB) and Adjustable Length (LA) in vertical runs

1. A Bellows Expansion Joints or Adjustable Length installed vertically should be installed directly below one chimney length of the highest support, between xed points (see

Figure 50).

2. Always use Bellows Expansion Joints or Adjustable Lengths between xed points when expansion is over 1/4”. See Table 14 and Table 15 for maximum run between xed points.

3. Install proper guiding between xed points when using Bellows Expansion Joint or Adjustable Length, to allow chimney vertical movement due to expansion.

Table 14

Maximum Run With Bellow Between Each

Fixed Point

Operating Temp. (°F)

700 42 /

800 37 ½

900 33 /

1000 30

1100 27 /

1200 25

1300 23 /

1400 21 /

X min. = Expansion + E [inch] Expansion = (length[feet]/100)x(ΔT[°F]/100)

Max Distance With One

Bellow Joint (ft.)

Page 29

3" Max Expansion

Flip Top

Anchor Plate Ventilated

12" Long Length Minimum With Bellows

Bellow Joint

Wall Guide

Wall Support

12" Long Length Minimum With Bellows

Bellow Joint

12" Long Length Minimum With Bellows

Wall Guide

Wall Support

Suspension Band

Bellow Joint

Fixed Support

Suspension Band

Bellow Joint

Fixed Support

Relief Valve

Figure 50

3" Max

Expansion

Mufer

Engine

Page 30

Table 15

Maximum Run with Adjustable Length

Between Two Fixed Points

Operating Temp. (°F)

200 200

300 133

400 100

500 80

800 50

1000 40

1200 33

1400 29

Bellows Expansion Joint and Adjustable Length in Horizontal Runs

1. Same guidelines apply as for vertical run with respect to expansion estimate and proper support and guiding with the use of Bellows Expansion Joint and Adjustable Length.

BELLOWS EXPANSION JOINT LB

1. Used in diesel or turbine exhaust installation

for expansion and vibration movements.

2. Good for exhaust pressure up to 60 inches of water column, it will compensate for up to 3” max of expansion. See Table 14 for maximum run with one bellow.

3. Bellow joints comes with a liner to protect the bellow and to have a smooth ow.

4. We suggest to always install a 12” length chimney downstream and upstream the bellow to insure clearance for the liner and adding accessibility for supporting and guiding. See Figure 50 ‘’bellowjoint’’ for good positioning of the bellow expansion joint.

5. It is of the most important that the bellow joint be properly supported and guided in vertical and horizontal orientation.

6. Installation is done the same way as described in Section A: Chimney and

Fitting Joint Assembly.

Max Distance With One Adjustable Length (ft.)

ADJUSTABLE LENGTH

1. The adjustable length (LA) is used for two

functions, one is to make odd lengths and the other to serve as an expansion joint.

2. The adjustable length may be used when internal pressure do not exceed 6” water column or in well ventilated areas. See Figure 65 for good positioning of the adjustable length.

3. The adjustable length assembly includes a sliding inner section, two containing rings, one compression band, a graphite packing gasket, an insulation band (DIS only) and a telescopic outer casing. There is a tool supplied with this assembly. (see Figure 66).

4. For proper installation, the adjustable length must have adequate overlap and sucient allowance for thermal expansion. (see Figure 55 - Adjustable length (LA), and Table 15).

5. Installation steps (see Figure 56): a. Adjust the length of the chimney as required. If outer casing or inner ue are too long, they may be cut to length. You must keep the overlap of the outer casing to at least 1”. You are only authorised to cut on the outer casing section attached to the female coupling. See Figure 51. b. Move up the sliding section of the outer wall to access inner wall. See Figure 52. c. Tighten the compression band so that the graphite packing is rmly registered against the inner ue. See Figure 53. d. 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 54). e. Fill the gap between the inner ue and outer casing with the supplied insulation band. See Figure 55 (DIS only). f. Move down the sliding section of the outer wall to the ange of the female coupling and install the locking band as described in Section A: Chimney and Fitting Joint Assembly. See Figure 56.

Page 31

Desired Length

Figure 51

Desired Length

Figure 52

Figure 53

Wrench

Figure 54

Move Outer Casing

Supplied Tool

Figure 55

Figure 56

VARIABLE LENGTH

1. The variable length (LV ) is used only to

make odd lengths, it doesn’t compensate thermal expansion. See Figure 65 for typical location.

2. The variable length assembly includes a sliding anged female coupling, a anged retaining band, a locking band, a insulation band and split outer casing. Inner ue sealant S-2000 or S-650 is necessary depending on the ue gaz temperature.

3. Installation steps : a. Measure the distance required for the

variable length. See Figure 58. b. Cut the inner wall at the dimension found at point ‘a.’ plus 1”. Cut the split outer casing at dimension plus 5/8”. Then cut the insulation band at dimension (DIS only). See

Figure 59.

c. Install the interior assembly between the two parts. Put one bead of sealant between the couplings anges as a regular length installation. See Figure 60.

Page 32

Graphite Packing

Containing Ring

Telescopic Outer Casing

Compression Band

Insulation

Band (DIS

only)

1" Min

Overlap

X Min

Figure 57

d. Slide down the female coupling over the male coupling of downstream part and ll the gap between the female coupling and the inner wall with S-2000 or S-650 sealant.

See Figure 61.

e. Slide down the retaining band to the female coupling to mate heir anges and tighten the band. Then, install the locking band over those anges. See Figure 62. f. Install the insulation over the inner wall (DIS only). See Figure 63.

Install Interior Assembly Between Two Parts

Figure 60

Cut to X + 1"

Distance X

Figure 58

Cut to X + 5/8"

Cut 1 ¼ in the Bend to

Clear the Locking Band

Figure 59

Cut to X

(DIS only)

Slide Down the Female Coupling and Fill the Gap With Sealant

Figure 61

Slide Down the Retaining

Band and Tighten the Band and Install the Locking Band

Over the Flanges

Figure 62

Page 33

Tighten the Bolts and Install the Locking Bands

Install the Insulation

(DIS only)

Figure 63

SECTION G  GREASE DUCT APPLICATION DIS ONLY

ACCESS

Grease Duct installations require provisions for cleaning the interior of the duct. NFPA 96 clean-out requirements are as follows:

1. A clean-out must be provided at each change of direction except where the entire length of the duct can be inspected and cleaned from either the hood or the discharge end.

2. On horizontal duct runs, at least one (1) 20” (508) diameter opening must be provided. Where the duct is smaller than 20” (610) diameter, openings large enough to permit cleaning must be provided at intervals of not more than 12’ (3.66m).

3. Openings may be at the side or the top of the duct whichever is more accessible. When the opening is on the side of the duct, the lower edge of the opening must be at least 1-1⁄2” (38) above the bottom of the duct. For Model DIS Grease Duct, this is accomplished by the use of the Grease Tee (GT90) with a Tee Cap (TC).

4. On vertical duct where personnel entry is possible, access must be from the top of the riser. Where entry is not possible, access must be provided at each oor.

Install the Outer Shell By

Inserting the Crimped End

Under the Male Coupling First

Figure 64

IMPORTANT

ACCESS REQUIREMENTS ARE SUBJECT TO CHANGE IN ACCORDANCE WITH LOCAL CODE. LOCAL AUTHORITIES SHOULD BE CONSULTED FOR EXACT REQUIREMENTS.

USE AND INSTALLATION OF INDIVIDUAL PARTS

1. DuraVent Model DIS parts numbering and

parts usage are discussed under chimney applications beginning on Page 4 of these installation instructions.

2. Those parts specic to grease duct, which are not normally used in chimney applications, are discussed in the following sections.

3. Installation is the same as described for standard application on Page 5, but a additional bead of sealant must be applied.

See Figure 2.

HORIZONTAL DRAIN LENGTH HDL

1. Horizontal Drain length is equipped with

a 1” (25) NPT nipple, which is attached to the inner ue and extends through the outer casing to provide a path to drain grease, condensate or wash water from the duct. See

Figure 66.

2. A dam is attached to the inside of the inner ue adjacent to the nipple to channel the euent to the drain.

3. The duct drain is intended for use at the end of a horizontal run where access and drainage is needed (See Figure 67).

Page 34

Finishing Cone

Adjustable Length

UP TO 6 INCH W.C. INTERNAL PRESSURE

Adjustable Length

Wall Guide

Wall

Support

Drain Tee Cap

Wall Firestop

Increaser

Suspension Band

Figure 65

Adjustable Length

Appliance Appliance

Fixed Support

45° Tee

Tee Cap

45° Elbow

Length

Locking Band

Variable Length

Starting

Adapter

Page 35

Grease Dam

Drain

Figure 66

Grease Dam

Drain

consulted regarding the need for re protection or washdown systems be installed so that the coupling is at or above the horizontal centerline of the chimney.

SQUARE TO ROUND ADAPTOR

1. When the hood is equipped with a square

or rectangular collar, a square to round adaptor is needed to connect the round DIS chimney to the hood (See Figure 69).

2. The outside dimensions of the square end are slightly smaller than the hood collar. It will t inside the collar and be connected by welding the two parts.

Drop To Hood

Hood (by others)

Plain View

Horizontal

Drain Length

Clean-Out Cap

Up To Fan

Standard 90° Tee

Figure 67

4. The drain coupling must be connected to a grease trap or approved container (supplied by others).

NOZZLE SECTION

1. The nozzle section is used when the

duct is required to be equipped with a re suppression system or washdown is desired.

2. The nozzle section allows a spray head or nipple to be attached to the duct through a 1” (25) NPT coupling attached to the inner ue and when the chimney section is in a vertical orientation, the nozzle may be located at the most convenient place. See

Figure 68.

3. Local authorities should always be

Nozzle

Figure 68

Not UL Listed

Figure 69

GREASE TEE 90° GT90P / TEE 90 DAM T90D DIS ONLY

The Grease Tee 90 and the standard Tee 90 with a dam are used to provide access for clean-out to comply with NFPA 96 requirements. They are equipped with a 1-1⁄2” (38) high grease dam at the access port. The access port must be closed with a tee cap

Page 36

(TC). The location of the access port in the tee is dependent on the orientation of the tee in the nal installation. Access port location is coded as shown in Figure 70.

GREASE TEE Y DIS ONLY

1. The Grease Tee Y (GTY) is very useful where

the grease duct must be accessed for cleanout and inspection purposes. See Figure 71.

2. It can be used in place of the Grease Tee 90 (GT90) and provides excellent access clearance for clean-outs.

3. Clean-outs must be located at all direction changes in the grease ductwork.

4. Installation is the same as standard tee.

NO TOOL ACCESS DOOR  REMOVAL FOR INSPECTION OR CLEANING

1. Unscrew the six (6) wing screws with your

hands and set them in a safe place during the inspection (See Figure 72).

2. Remove the outer door from the outer wall of the duct and set it in a safe place during the inspection (See Figure 73).

3. Remove the insulation pad and set it in a safe place during the inspection (See Figure 73).

4. Unscrew the eight (8) wing screws and set it in a safe place (See Figure 74).

5. Remove the Inner cover and set it in a safe place (See Figure 74).

6. Inspect the ceramic gasket (white) and the silicone gasket (gray) attached on the inside of the Inner door for any damage (See Figure

75). If any damages, you must order one or both gaskets.

Standard Tee With Dam Position #1

Standard Tee With

Dam Position #2

Grease Tee

Position #1

Grease Tee Position #2

Grease dam

Position #3

Male Coupling

Figure 70

Grease Tee Y

Male Coupling

Grease Tee

Position #3

Grease dam

Tee Cap

Grease dam

Position #1

Male Coupling

Grease dam Position #2

Grease dam

Replacement of the access door:

1. Replace the Inner door on the duct over

the access hole.

2. To make sure the door is well placed, put back only the top and lower central wing screw and tighten both.

3. Make sure that the door is well placed.

4. Put back the other six (6) wing screws and

tighten adequately.

Support

Figure 71

Page 37

Figure 72

Figure 75

Upblast Fan

Screws

Figure 73

(by others)

Sealant

Fan Curb

Figure 74 Figure 76

5. Replace the INSULATION PAD over the inner door.

6. Replace the outer door.

7. Put back the six (6) wing screws and tighten them with your hands.

FAN ADAPTOR PLATE FAN DIS ONLY

1. The fan adaptor is designed to connect to an upblast fan mounted on a roof curb.

Fan

Adaptor

Page 38

2. When connected to an upblast fan (See Figure 76), the plate mounts on top of the

fan curb which supports the fan housing.

3. The plate may be positioned o center within the curb provided that minimum clearance to combustibles is maintained.

4. In the event that the plate is positioned o center, trim o excess plate material to allow fan placement.

5. Secure the plate to the curb a minimum of three (3) places per side with minimum #8 x 1-1/4” wood screws. You will have to drill holes in the plate.

6. The fan housing is set on top of the plate and sealed using P-650 sealant or an approved gasket supplied by the fan manufacturer.

7. Specify the chimney diameter and outside curb dimensions when ordering the fan adaptor plate.

8. The fan adaptor plate can be used as a vertical support. The maximum height of grease duct supported by the fan adaptor plate is 15’ for all diameters.

must be primed and painted. The paint surface should be maintained regularly to prevent possible deterioration of the casing surface. The use of stainless steel outer casing negates the need for painting.

IMPORTANT

When solid fuel red cooking appliances are vented with Model DIS Grease Duct, creosote and grease may buildup on the inner ue. This mixture can result in an unusually severe duct re. To minimize re hazard, the duct should be inspected weekly and any residue removed by cleaning. Additional requirements for solid fuel red cooking appliances are outlined in NFPA 96.

WARRANTY

These products have a limited warranty. Please read the warranty to be familiar with its coverage. Retain this manual. File it with your other documents for future reference.

WARNING

DO NOT EXCEED THE MAXIMUM LOAD LIMIT OF THE ROOF CURB OR THE ROOF.

MAINTENANCE

1. Grease duct is required by NFPA 96 and

many local building codes to be inspected and cleaned if necessary at specic intervals.

2. DuraVent Model DIS Grease Duct must be inspected and cleaned in accordance with local requirements. It requires no additional internal maintenance.

3. DuraVent recommends that grease containers connected to drainage points be emptied and washed out daily or more often, if necessary. If needed, the drain nipples should be checked and cleaned whenever the containers are emptied.

4. Where the duct is installed outside the building, the galvalum steel outer casing

PRODUCT REFERENCE INFORMATION

Please contact DuraVent for the phone number of your nearest DuraVent dealer who will answer your questions or address your concerns. Normally, all parts should be ordered through your DuraVent distributor or dealer. Parts will be shipped at prevailing prices at time of order.

When ordering repair parts, always give the following information:

1. The model number of the chimney system.

2. The part number.

3. The description of the part.

4. The quantity required.

5. The installation date of the chimney system.

If you encounter any problems or have any questions concerning the installation or application of this system, please contact your dealer.

Page 39

SECTION H  MARKINGS

SAFETY LISTING LABELS  DIS AND DAS

Page 40

DuraStack 1 year Standard and 15 year Limited Warranty

This M&G DuraVent 1-year Standard and 15-year Limited Warranty warrants your DuraStack™ DIS and DAS stainles s steel multi-fuel double-wall insulated chimney sy stems (Product) to b e free from def ects in material a nd workmanship at the t ime of manufactur e. This 1-year Standard and 15-year Li mited Warranty i ncludes all component s and ttings. Af ter installatio n, if covered component s manufacture d by DuraVent are found to be def ective in materia ls or workman ship during the 1-year Standa rd and 15-year Warranty per iod and while the Produ ct remains at the site of t he original installa tion, DuraVent will replace th e covered components . DuraVent reserves th e right to replace covered co mponents with an eq uivalent product a nd the replacement mus t be carrie d out in accordance with Du raVent recom mendations. If replac ement is not commercially pr actical, DuraVent will, at it s option, refund t he purchase price or who lesale price of the Dur aVent Produc t, whichever is app licable. Labor or f reight costs to remove o r replace DuraVent component s are not included. THERE ARE E XCLUSIONS AND LIMITATIONS to the 1-year Standa rd and 15-year Limited Warran ty as describe d herein. DuraVent Grease Duc t applications are covered sep arately (see DuraStac k – DIS Grease Duct Ap plications Warrant y) and are not included und er this warranty.

Coverage Commencement Date Warranty co verage begins on the d ate of shipment from Dur aVent.

Exclusions and Limitations This 1-year Standa rd and 15-year Limited Warrant y applies only if th e Product is insta lled in the United State s or Canada and only if use d for the applicatio n for which it w as designed and inten ded. The Product m ust be installed an d maintained in accordanc e with the system de sign, installation an d maintenance instru ctions for the Pro duct and in compliance w ith all applicable ins tallation and building co des and high-quali ty, industry-acc epted trade prac tices. Any repaired o r replaced product sh all be warranted for t he duration of time no lo nger than the remaining o r unexpired term of t he original warrant y.

The 1-year Standar d Warranty is ext ended to the purchase r subject to the foll owing conditions:

• Generally acce pted engineering p ractices have bee n followed to determin e that sizing and materia l specication s are suitable for the ap plication and environment involved;

• The compone nts have been corre ctly installed i n accordance with the sy stem design and ins tallation instruc tions for the Pro duct as provided b y DuraVent;

• Damage is not a re sult of burning garba ge, waste oil, #6 oil or any oth er inappropriate or pr ohibited material in t he appliance served b y the venting system .

The Ex tended 15-year Limited War ranty is exten ded to the purchaser s ubject to the follo wing additional cond itions:

• The design p arameters prov ided to DuraVent by the resp onsible engineer a t the time of design we re and are accurately re presentative of t he operating con ditions;

• The sys tem sizing and design wa s performed or a pproved by DuraVent;

• The boile r or engine exhaus t is and has operated f ree of solvent or ref rigerant vapor s or any halogenated com pound which may caus e acid condensate s to form within the chimney system;

• The entire ch imney or exhaust s ystem was supplied by D uraVent;

• Expos ed Galvalume and galvan ized surfaces ar e protected wit h a minimum of one base coat of p rimer and one nish coat of h eatresistant and co rrosiveresistant paint at all times. Stainless steel sur faces do not require painting.

This warra nty is non-tran sferable and ex tends to the origin al owner only. The Produc t must be purchas ed through an DuraVent Agent /Representati ve and proof of purchase m ust be provided.

DuraVent will not be re sponsible for: (a) damage s caused by normal wea r and tear, corrosion from s alt air, accident, riot, re, o od or acts of God; ( b) damages cau sed by abuse, neglig ence, misuse, or unautho rized alteration o r repair of the Produc t aecting it s stability or per formance; (c) damages c aused by failing to pr ovide proper maintenan ce and service in accorda nce with the design, ins tallation and maintena nce instructi ons for the Produc t; (d) damages, repairs or i neciency resul ting from fault y installation or app lication of the Produ ct.

This 1-year Standa rd and 15-year Limited Warrant y covers only par ts as provided here in. DuraVent’s entire liabilit y is limited to the purcha se price of this Produc t. In no case shall DuraVent be re sponsible for mater ials, components or con struction t hat are not manufact ured or supplied by Dur aVent or for t he labor nece ssary to install, re pair or remove such mater ials, components or con struction. A ll replacement or repair com ponents will be shipp ed F.O.B. from the DuraVent manufacturing facility.

Limitation on Liability It is expre ssly agreed and und erstood that the s ole obligation of Dur aVent and the pu rchaser’s exclusive re medy under this war ranty, under any other warrant y, expressed or impli ed, or in contract , tort or otherw ise, shall be limited to rep lacement, repair, or refun d, as specied here in. In no event shall DuraVent be liable fo r any incidental or cons equential damages c aused by defec ts in the Product , whether such damag e occurs or is discovere d before or after re placement or repair, and whet her such damage is caus ed by DuraVent negligence. Dur aVent makes no e xpressed warr anties except as sta ted in this 1-year Standa rd and 15-year Limited Warran ty. The duration of any impli ed warranty is limi ted to the duration of t his expressed w arranty. No one is authori zed to change this 1-year Stand ard and 15-year Limited Warra nty or to create for Dur aVent any other o bligation or liabilit y in connection w ith the Produc t. Some states and p rovinces do not allow the e xclusion or limitatio n of incidental or conse quential damages, s o the above limitation s or exclusions may not apply to yo u. The provisions of thi s 1-year Standard and 15-year Limite d Warranty are in addi tion to and not a modic ation of or subtrac tion from any statu tory warrantie s and other rights and r emedies provide d by law.

Investigation of Claims Against Warrant y DuraVent reser ves the right to inves tigate any and all claims agai nst this 1-year Standard and 15-ye ar Limited Warranty a nd to decide, in its so le discretion, upon the me thod of settlem ent. DuraVent shall in no event be re sponsible for any war ranty work done by a con tractor who is not ap proved without r st obtaining DuraVent’s prior written consent.

For the mos t up-to-date ins tallation instr uctions, see dur avent.com

REV 4.1.2013

Manufac tured in Laval, Queb ec

Page 41

Grease Duct (DIS) Limited Lifetime Warranty

Industrial and Commercial Chimney and Venting Products Limite d Lifetime Warranty This M&G Dur aVent Limite d Lifetime Warrant y warrants your Du raStack™ – DIS stainle ss steel multi-f uel double-wall insu lated chimney syste m (Product) in a grease duc t application to be f ree from defe cts in material and wo rkmanship at the time o f manufacture wh en properly connec ted to and included as a part of a co de-compliant comm ercial kitchen ventilat ion system for coo king appliances. Thi s Limited Lifetim e Warranty include s all components and tting s. After installa tion, if covered compon ents manufact ured by DuraVent are found to be d efective in mate rials or workmanship du ring the Limited Lifetim e Warranty period a nd while the Produc t remains at the site of the or iginal installatio n, DuraVent will replace the covered c omponents. DuraVent reser ves the right to replace cove red components wi th an equivalent prod uct and the replacemen t must be carried o ut in accordance with Dur aVent recommend ations. If replacement i s not commercially prac tical, DuraVent will, at its opt ion, refund the purc hase price or whole sale price of the DuraVent Produc t, whichever is applic able. Labor or freig ht costs to remove or rep lace DuraVent components are n ot included. THERE ARE E XCLUSIONS AND LIMITATIONS to the Limi ted Lifetime Warr anty as describ ed herein.

Coverage Commencement Date Warranty co verage begins on the d ate of shipment from Dur aVent.

Exclusions and Limitations This Limite d Lifetime Warrant y applies only if the P roduct is install ed in the United States o r Canada and only if use d for the applicatio n for which it was designe d and intended. The Prod uct must be inst alled and maintained in a ccordance with the desi gn, installation and mai ntenance instruc tions for the Produc t and in compliance with all app licable installati on and building codes and h igh-quality, indus try accepted tra de practices.

This warra nty is non-tran sferable and ex tends to the origin al owner only. The Produc t must be purchas ed through an DuraVent Agent /Representati ve and proof of purchase m ust be provided.

Component s and ttings (exclu des labor): Year 1-10 – Replaceme nt of all components and  ttings. Year 11-15 – Rep lacement at 75% o of the prevailin g list price in eec t at the time of replacemen t (25% of the retail list pr ice paid by the consumer). Year 16+ – Replacement at 50 % o of the prevailing list p rice in eect at th e time of replacement (50% of t he retail list price p aid by the consumer).

DuraVent will not be re sponsible for: (a) damage s caused by normal wea r and tear, corrosion from s alt air, accident, riot, re, o od, high wind or act s of God; (b) damages cau sed by abuse, negligen ce, misuse, or unauthor ized alteration or re pair of the Product a ecting its s tability or per formance; (c) damage resultin g from failure to reaso nably clean, care for or ma intain product s in accordance with the pr inted design, inst allation and maintenance ins tructions for the Pro duct; (d) damages caus ed by failing to provid e proper maintenance and s ervice in accordance wi th the design, inst allation and maintenance instru ctions for the Pro duct, including da mage to the nish of the Pro duct caused by th e use of improper solven ts/chemicals or improp er cleaning methods; (e) damages, repair s or ineciency re sulting from fau lty installation o r application of the Pr oduct; (e) replacement of sy stem sealants as a re sult of improper installat ion or a system greas e re.

This Limite d Lifetime Warr anty covers only pa rts as provid ed herein. DuraVent’s entir e liability is limite d to the purchase pr ice of this Produc t. In no case shall Dur aVent be respon sible for materials, c omponents or con structio n which are not manuf actured or supp lied by DuraVent or for the lab or necessar y to install, repair o r remove such materi als, components or co nstruct ion. All replacement or re pair components w ill be shipped F.O.B. from the Du raVent manufactur ing facility.

In no event shall Du raVent be liab le for any incidental or co nsequential damage s caused by defec ts in the Produc t, whether such dam age occurs or is discovered b efore or after r eplacement or repair, and whet her such damage is caus ed by DuraVent negligence. Dur aVent makes no e xpressed warr anties except as st ated in this Limited L ifetime Warrant y. The dura tion of any implied warr anty is limited to the du ration of this expr essed warrant y. No one is authori zed to change this Limit ed Lifetime Warran ty or to create for Dur aVent any other ob ligation or liabilit y in connection wi th the Product. S ome states and province s do not allow the exclusio n or limitation of incid ental or consequent ial damages, so the abov e limitations or exclu sions may not apply to you. The provisi ons of this Limited Li fetime Warranty ar e in addition to and not a mo dication of or subtr action from any s tatutory war ranties and other ri ghts and remedie s provided by law.

Investigation of Claims Against Warrant y DuraVent reser ves the right to inves tigate any and all claims agai nst this Limited Li fetime Warranty an d to decide, in its so le discretion, upon t he method of sett lement. DuraVent shall in no event b e responsible for any w arranty work don e by a contractor that i s not approved withou t rst obtaining D uraVent’s prior written consent.

For the mos t up-to-date ins tallation instr uctions, see dur avent.com

REV 4.1.2013

Manufac tured in Laval, Queb ec

Customer Service Support 800-835-4429 707-446-4740 FAX www.duravent.com

5/2013 PIDIS