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Figure 72

Figure 73

Figure 74

Figure 76

Figure 75

Upblast Fan

Screws

(by others)

Sealant

Fan

Adaptor

Fan Curb

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.

Содержание DuraVent DAS

Страница 1: ...DuraStack DIS DAS Installation Instructions A modular double wall positive pressure chimney Boiler Breeching and Stack Engine Exhaust Grease Duct DIS only ...

Страница 2: ...This venting system must be supported in accordance with these instructions Check for proper joint construction when joining pipe to fittings Check for unrestricted vent movement through walls ceilings and roof penetrations Different manufacturers have different joint systems and adhesives Do not mix pipe fittings or joining methods from different manufacturers Warning important Risk of carbon mon...

Страница 3: ...ting Information 4 Section A General Information 4 Section B Tees Elbows Increasers 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 Section F Thermal Expansion 27 Section G Grease Duct Application 33 Product ReferencE Information 38 Section H Markings 39 Warranty 40 ...

Страница 4: ...structions 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 ...

Страница 5: ...uctions and National Fire Protection Association standard NFPA 96 Standard for Ventilation Control and Fire Protection of Commercial Cooking Operations Surroundings Enclosure DuraVent models DIS and DAS chimney are primarily intended to be used in fire resistive noncombustible surroundings or installed unenclosed They are not intended for use in one or two family residences Caution Do not enclose ...

Страница 6: ...uilding is four stories or more the enclosure wall shall have a fire 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 Complete system sizing and capacity information maybe obtained from the Chimney Gas Vent and Fireplace Systems chapter of the ASHRAE Handbook go to www as...

Страница 7: ...e Ø 8 Inside Ø 8 Ø12 Ø36 Inside Ø 8 Not Listed 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 warning DO NOT INSTALL ANY TYPE OF INSULATION IN THE REQUIRED CLEARANCE SPACES SURROUNDING THE CHIMNEY Clearances DIS Minimum air space clearance to combustible construction to model DIS Chimney is 1 For non combustible construction mai...

Страница 8: ...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 ban...

Страница 9: ...OR EXPANSION JOINT OBSERVE ADEQUATE SAFETY MEASURES WHEN USING A DEGREASER Table 6 Maximum Chimney Heights and Support Method for Model DIS and DAS Inside Diameter Anchor Plate Anchor PlateVentilated APV Wall Support WS Tee T Building Metal Frame Building Metal Frame BuildingWood Frame Building Metal Frame BuildingWood Frame 5 147 133 133 147 61 105 6 128 116 116 128 53 92 8 103 93 93 103 43 74 10...

Страница 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 MaximumVertical 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 s...

Страница 11: ... 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 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 no...

Страница 12: ...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 flow 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 90 TEE ...

Страница 13: ... 12 45 TEE T45 1 For systems where flow 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 t...

Страница 14: ...2 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 fitting to allow rain entering the chimney to wash down dilute and remove any corrosive residue 3 Same installation as a tee cap Increaser Step or Tapered 1 Use to increase the diameter of the chimney flue 2 The tapered i...

Страница 15: ...elynecessary 2 Sloped offsets 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 offset is determined by strength considerations The maximum dimension...

Страница 16: ...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 m...

Страница 17: ...ider 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 floor 2 Apply a bead of inner joint sealant on the male coupling flange Figure 20 Figure 21 important If bracing is used minimum X angle is 30 If there is no bracing the framework must ...

Страница 18: ...n the male coupling flange 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 flanges 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 fills the joint between the plate and the female coupling 7...

Страница 19: ...stbeabletomovewithoutinterfering withtheguidewhenthermalexpansionoccurs SeeFigure27 wallguidelocation 3 Thewallguidecanbeinstalledwithawallband Figure 26 extensionforgreaterclearancesupto4 1 4 for modelDISandupto7 1 4 forDAS SeeFigure28 wallguideextension 4 Specialconsiderationsmustbetakenwhen installingonexteriorwall Awallguidemustbe installedbetween6 and10 belowthehighestwall supporttostabilizet...

Страница 20: ...e 28 Wall Guide Wall Guide Wall Support MVS MVS 2 to 4 51mm to 108mm DIS 5 to 7 127mm to 184mm DAS Freestanding H max 6 to 10 Do not install expansion length in this area Wall Guide Expansion Length I D 8 DIS I D 12 DAS I D 8 DIS I D 12 DAS ...

Страница 21: ...ication 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 fixed support and the band of the roof brace must be reduced to 5 4 Begin by attaching the braces to the...

Страница 22: ...ble 3 Minimum openings for framing dimension 3 The radiant shield of the firestop may need to be trimmed to fit the height of the roof Nominal height is 10 inches 4 Roof floor penetration components are designed to be installed on a flat roof They may be installed on a pitch roof if a curb is installed to provide a flat surface 5 Floor guide is used to protect the flashing from lateral movement Th...

Страница 23: ...e of combustible construction important Crossing a combustible wall is not permitted for diameters larger than 10 inside diameter Sealant Flashing Combustible roof floor Firestop Radiant Shield 2 Clearances DIS 4 Clearances DAS No joint or expansion length in this area Floor Guide or Ventilated Anchor Plate Storm Collar 2 The wall penetrator FSW consist of a firestop female half and a male half th...

Страница 24: ... Flange Adaptor FA is intended for use as a connection to a class 125 or 150 ANSI pipe flange 2 This type of connection requires a flange gasket and bolt set provided by the installer The gasket and bolts are typically sold by pipe valve and fittings houses as NBG set Figure 41 illustrates a typical installation 3 An outer band with insulation is included to close the installation Flanged Adapter ...

Страница 25: ...taining Band and a locking band over a shank type flue gas inlet 2 First slide the retaining band over the system inlet and tighten it with supplied bolt See Figure 37a Figure 43 Appliance Outlet Insert the Coupling End Inlet Insert the Coupling End Tighten the Locking Band Appliance Outlet Inlet Tighten the Locking Band Flange Adaptor Bolts and Nuts by other Gasket by other ANSI 125 or 150 pipe f...

Страница 26: ...d outlet The Flange Adaptor comes with beam clamps to clamp the FFHA to the appliance See Figure 42 TERMINATIONS 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 th...

Страница 27: ...t 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 fitting 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 T...

Страница 28: ...f the exhaust 10 Low pressure systems such as boilers up to 6 inches water column can effectively use the Adjustable Length LA 11 Spacing of guides and supports when a thermal expansion part is used should not be greater than that specified in Section A Table 7 12 Proper guiding and support of expansion parts often requires closer spacing EXPANSION JOINTS INSTALLATION Bellows Expansion Joint LB an...

Страница 29: ...llows Bellow Joint Wall Guide Wall Support 12 Long Length Minimum With Bellows Bellow Joint Wall Guide Wall Support Suspension Band 12 Long Length Minimum With Bellows Bellow Joint Fixed Support Suspension Band Bellow Joint Fixed Support 3 Max Expansion Fixed Support Relief Valve Fixed Support Muffler Engine ...

Страница 30: ...raphite packing is firmly registered against the inner flue 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 flue 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 flange of the fe...

Страница 31: ...er casing Inner flue sealant S 2000 or S 650 is necessary depending on the flue 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 betwe...

Страница 32: ... Then install the locking band over those flanges See Figure 62 f Install the insulation over the inner wall DIS only See Figure 63 Figure 57 X Min 1 Min Overlap Insulation Band DIS only Compression Band Graphite Packing Containing Ring Telescopic Outer Casing Distance X Cut to X 1 Cut 1 in the Bend to Clear the Locking Band Cut to X 5 8 Cut to X DIS only Install Interior Assembly Between Two Part...

Страница 33: ...floor 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 specific to grease duct which are not...

Страница 34: ...6 inch w c Internal Pressure Adjustable Length Adjustable Length Fixed Support 45 Tee Tee Cap Length Locking Band Variable Length Starting Adapter 45 Elbow Increaser Suspension Band Wall Firestop Drain Tee Cap Wall Support Wall Guide Appliance Appliance ...

Страница 35: ... 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 fit inside the collar and be connected by welding the two parts Figure 69...

Страница 36: ... 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 d...

Страница 37: ... Sealant Fan Adaptor Fan Curb 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 ...

Страница 38: ...ease duct supported by the fan adaptor plate is 15 for all diameters 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 specific intervals 2 DuraVent Model DIS Grease Duct must be inspected and cleaned in accordance with local requirements It requires no...

Страница 39: ...39 Section H Markings Safety Listing Labels DIS and DAS ...

Страница 40: ...form withinthechimneysystem The entire chimney or exhaust system was supplied by DuraVent Exposed Galvalume and galvanized surfaces are protected with a minimum of one base coat of primer and one finish coat of heatresistant and corrosive resistant paint at all times Stainless steel surfaces do not require painting Thiswarrantyisnon transferableandextendstotheoriginalowneronly TheProductmustbepurc...

Страница 41: ...riot fire flood high wind or acts of God b damages caused by abuse negligence misuse or unauthorized alteration or repair of the Product affecting its stability or performance c damage resulting from failure to reasonably clean care for or maintain products in accordance with the printed design installation and maintenance instructions for the Product d damages caused by failing to provide proper ...

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