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M&G DuraVent DuraStack PRO DAS1, Installation And Maintenance Instructions Manual

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M&G DuraVent DuraStack PRO DAS1 Installation And Maintenance Instructions Manual Download Page 9

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 on outdoor 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

9

NOTE: 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.

Summary of Contents for DuraVent DuraStack PRO DAS1

Page 1: ...ances 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 CARBO...

Page 2: ...S 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 2...

Page 3: ...en 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...

Page 4: ... 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 ratin...

Page 5: ...installed with threaded rods having a minimum of Ø1 2 or with structural steel provided by others Distance ft 5 NOTE 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 Se...

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

Page 7: ...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 Consultwithadesignprofessionalinordertodeterminecomplianceoptionsforthesepotentially complex requirements when this product is to be installed in a building where the...

Page 8: ...at 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...

Page 9: ...ing on outdoor seams Channel Bands where necessary 3 Part No S 375 Nuflex 302 General Purpose is a low temperature grey silicone 450 F onlyforweathering sealingonoutdoorseams OuterBandBSEwherenecessary 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 O...

Page 10: ...e 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...

Page 11: ...y 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...

Page 12: ... 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 V...

Page 13: ...t 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 Flan...

Page 14: ...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 X found at the first Step plus 4 See Figure 24a 3 Cut the split oute...

Page 15: ...OINT 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 ...

Page 16: ...e 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 an...

Page 17: ...T 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 ...

Page 18: ...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 o...

Page 19: ...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 d...

Page 20: ...IBLE 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 t...

Page 21: ...integrated on a length It cannot be used as a fixed support for vertical or horizontal installation because the anchor plate is free to move on the longitudinal axis of the length Refer to the Anchor Plate AP for all the warnings details except for the installation See Figure 43 for detail of APL For the Models DCL DIS PRO and DAS PRO no outer wall is supplied It is the Outer Band BSE that serves ...

Page 22: ...l of the section it used as a lateral guide to prevent flexing due to lateral loading The proper location for the WGHD is immediately below the Half Outer Band DBSE near the duct joint The outer band must be able to move away from the Heavy Duty Wall Guide when thermal expansion occurs The Heavy Duty Wall Guide is bolted together with hardware provided to form a rigid assembly NOTE Seal joint with...

Page 23: ... them from bending It can be done by means of Anchor Plate AP or Heavy Duty Wall Support WSHD When a tee is used at the base of the riser the preferred location for support is above the Tee thus suspending the Tee The Anchor Plate with Length APL can be used only as a free support on its axis vertical or horizontal See Figure 55 A Heavy Duty Wall Support WSHD an Anchor Plate AP or an Anchor Plate ...

Page 24: ...ble RT When a Flashing F and a Storm Collar SC are used on top of the roof use the exterior sealant S 375 to seal the Storm Collar SC on the outer casing with the outer joint sealant Do not installed a chimney joint or a expansion length in the roof floor space Installation 1 Cut opening to dimensions specify in Table 2 2 The plate of the Roof Thimble must be installed under the floor ceiling with...

Page 25: ...g HAR Anchor Plate AP or Anchor Plate Length APL See Figure 59c Figure 59c Supports for Chimney passing through a Wall 25 NOTE DIAGRAMS ILLUSTRATIONS ARE NOT TO SCALE INSTALLATION PROCEDURE FOR FLASHINGS The roof Flashing F is used in conjunction with Storm Collar SC for weatherization on a flat roof See Figure 60 and 61 The Adjustable Flashing F30 is used in conjunction with Storm Collar SC for w...

Page 26: ... a guide must be installed at the roof level See figure 65 3 To minimize the effect of thermal expansion good practice implies installing a fixed support and an expansion length at the roof level 4 When using guy wire the cable must be slightly slack or loose to allow thermal expansionorbeequippedwithtensioningsprings byothers Thetensioningsprings are mandatory only when there is more than one lev...

Page 27: ...27 NOTE DIAGRAMS ILLUSTRATIONS ARE NOT TO SCALE Figure 65 Height with rigid bracing or guying option Figure 66c Guy Section Details ...

Page 28: ...d FLIP TOP FT Used in vertical diesel or turbine exhaust it prevents moisture and debris from entering the system It opens with internal pressure and closes when no pressure It is a single wall part for all Models DCL DAS PRO and DIS PRO that is attached on the uppermost chimney pipe section with a inner V Band BSI See Step 1 to 4 in the JOINT ASSEMBLY Section For the DAS PRO DIS PRO a Closure Rin...

Page 29: ...toengineexhaustexplosions backfire Itisrecommended to add a Relief Valve on each Diesel Engine Exhaust System and should be installed as close to the engine exhaust outlet as is safely possible to prevent damage to system The RV is intended to help control the venting of pressure which may occur during an exhaust system backfire Engines have the potential to inject unburned fuel into an exhaust sy...

Page 30: ...ginning of the system 2 The orientation of the ReliefValve must be positioned upright as shown on the Figure 75b with a 45 Tee T45 or on Figure 75c with a 90 Tee T90 3 The Relief Valve must be connected to our ANSI Flange Adaptor FA Bolts washers nuts and gasket supplied by others will provide a complete gas tight connection to the 125 150 lb ANSI flanged Flange Adapter 4 The Relief Valve and the ...

Page 31: ...ern Step 1 2 Step 3 4 Step 5 6 Figure 78 Installation of an ANSI Flange ADAPTOR FA HALF UNIVERSAL FLANGE HUF The Half Universal Flange HUF is designed to connect Models DCL DAS PRO DIS PRO pipe to a boiler or other appliance having a flanged outlet with a 4 6 8 12 16 24 or no bolt pattern at all The HUF is a four flat 1 8 thick steel clamp rings supplied in two half circle pieces with 24 slots Ø3 ...

Page 32: ... of sealant to the face of the pipe flange and to the appliance flange 2 Align the pipe flange with the appliance Make sure that there is sealant everyhwere between both flanges 3 Position one half clamp ring on the top of the inner wall section flange Place another clamp ring but at 90 apart of the first half clamp ring under the appliance flange 4 Secure both rings with 2 bolts and nuts by other...

Page 33: ...33 NOTE DIAGRAMS ILLUSTRATIONS ARE NOT TO SCALE Figure 82 Typical installation for Diesel Generator Exhaust ...

Page 34: ...34 NOTE DIAGRAMS ILLUSTRATIONS ARE NOT TO SCALE Figure 83 Typical Installation for Boiler Applications ...

Page 35: ...e 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 our dealer Printed in Canada 2016 M G Du...

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