Viessmann Vitodens 100-W WB1A-24 Installation Instructions Manual Download Page 71

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Single Wall Venting (Room Air Dependent)

Vent Length Requirements

(continued)

Maximum vent pipe length - vertical

Size the exhaust vent pipe as specified
in the table on the left. This table lists
the maximum allowable vent length in
ft. and meters of the exhaust piping.
Vent diameter must not be reduced at
any point in the installation.

Table 47. Maximum allowable equivalent length - vertical

Boiler Model

System Ø

Max. equivalent

vent length (a)

WB1A 8-24, 8-30

2” / 51mm
3” / 76mm

4” / 102mm

40ft. / 12m
66ft. / 20m
79ft. / 24m

WB2 6-24C, 6-24

3” / 76mm

4” / 102mm

66ft. / 20m
79ft. / 24m

WB2 8-32

3” / 76mm

4” / 102mm

49ft. / 15m
62ft. / 19m

WB2 11-44

4” / 102mm

(for larger Ø system

consult Viessmann)

66ft. / 20m

WB2 15-60

4” / 102mm

(for larger Ø system

consult Viessmann)

49ft. / 15m

4” (3” to 4” increaser field supplied. Do not order Viessmann 4” parallel adaptor)

Maximum of five 90° elbows allowed in the vent system (first 90º elbow is not included).
See Fig. 47.
Minimum vent length is 3.3 ft. / 1m.

Legend

Exhaust (straight coupling) with
screen
Flashings
Support system
Combustion air intake

a Equivalent length (exhaust)
b min. 18” / 457mm

max. 48” / 1219mm

Fig. 61

Summary of Contents for Vitodens 100-W WB1A-24

Page 1: ...B1A Series for Vitodens 200 W WB2 Series Read and save these instructions for future reference IMPORTANT Vitodens 200 W WB2 24C 24 32 Vitodens 200 W WB2 44 60 with preinstalled vent pipe adaptor Vitodens 100 W WB1A 24 30 with preinstalled vent pipe adaptor Please file in Service Binder 5285 268 v3 8 10 2008 ...

Page 2: ...quipment venting Never operate boiler without an installed venting system An improper venting system can cause carbon monoxide poisoning H Warranty Information contained in this and related product documentation must be read and followed Failure to do so renders warranty null and void H Advice to owner Once the installation work is complete the heating contractor must familiarize the system operat...

Page 3: ... in the U S A 20 Installation of Anchoring System 20 Vent Length Requirements 21 Maximum vent length 21 Maximum vent length with increasers Vitodens 100 W 22 Maximum vent length with increaser Vitodens 200 W 22 Minimum vent length 22 Vertical Vent Installation Coaxial Vertical Venting Layouts 23 Layout of vertical vent system with accessories 23 General installation examples 24 Component Installat...

Page 4: ...uirements for stainless steel vent pipe material 44 Component Parts of the Venting System 47 Vent Requirements CPVC 48 Additional requirements for UL ULC listed CPVC vent pipe material 48 Vent Pipe Starter Adaptors 49 Side Wall Vent Termination stainless steel or CPVC 50 Vent Length Requirements 51 Maximum vent air intake pipe length horizontal 51 Maximum vent air intake pipe length vertical 52 Ma...

Page 5: ...inless steel vent pipe material 64 Component parts of the venting system stainless steel 67 Additional requirements for CPVC vent pipe material 68 Side Wall Vent Termination 69 Vent Length Requirements 70 Maximum vent pipe length horizontal 70 Maximum vent pipe length vertical 71 Standard long sweep elbows 72 Component Installation Guide 73 Single wall vent pipe starter adaptor installation 74 Cei...

Page 6: ... potential hazards or important product information Helpful hints for installation operation or maintenance which pertain to the product This symbol indicates that additional pertinent information is to be found in the right hand column This symbol indicates that other instructions must be referenced 5285 268 v3 8 Indicates an imminently hazardous situation which if not avoided could result in dea...

Page 7: ...ed Installation shall be in strict compliance with the manufacturer s instructions A copy of the installation instructions shall remain with the appliance or equipment at the completion of the installation 4 A metal or plastic identification plate shall be mounted at the exterior of the building four feet directly above the location of the vent terminal The plate shall be of sufficient size to be ...

Page 8: ...ination from high winds such as building a fence or planting shrubs Ensure that the total equivalent vent length is not exceeded Operation with balanced flue using Viessmann supplied coaxial vent system Side wall vent installations must include Viessmann protective screen Because of its sealed combustion chamber the Vitodens gas fired condensing boiler is suitable for operation with balanced flue ...

Page 9: ...nimum 1 25 4 mm Maximum 19 6 497 8 mm Vent air intake system must be properly installed and sealed CAUTION Under certain climatic conditions some building materials may be affected by flue products expelled in close proximity to unprotected surfaces Sealing or shielding of the exposed surfaces with a corrosion resistant material e g aluminum sheeting may be required to prevent staining or deterior...

Page 10: ... H Check proper location of gaskets in all coaxial pipe collars Only use supplied parts with the polypropylene venting system Apply moderate amount of supplied lubricant to slip joint ends of vent and air intake pipe collars H Slide pipes into each other with a gentle twisting motion H Condensate must drain from the flue pipe to the boiler Ensure a suitable gradient of at least 3º approx 2 per 3 3...

Page 11: ...ring boiler start up For this purpose it is sufficient to measure the CO2 concentration of the combustion air in the annular gap of the air intake pipe The vent pipe is considered sufficiently leak proof if a CO2 concentration in the combustion air no higher than 0 2 or an O2 concentration no lower than 20 6 is measured relative to a starting O2 concentration of 20 9 If higher CO2 values or lower ...

Page 12: ... Vent termination incl wall flashings Important Total length of vent termination pipe is 31 787 mm If required the vent termination pipe may be shortened by max 12 305 mm min vent termination length is 19 483 mm Protective screen Warning Protective screen MUST be installed Mounting clip white use at least 2 Brass adaptor M8 x 5 16 18 and Set of screws 8 x 3 8 shown on following page Combustion air...

Page 13: ...100 150 13 Side Wall Venting Layouts continued Layout with basic coaxial vent kit componentry continued Mounting clip c w 4 screw Brass adaptor supplied All threaded rod field supplied See section Installation of Anchoring System on page 20 in this manual for detailed installation information of anchoring system 5285 268 v3 8 ...

Page 14: ... tee Elbow 87 1 per carton Sliding coupling Elbow 45 2 per carton Vent termination incl wall flashings Important Total length of vent termination is 31 787 mm If required the vent termination may be shortened by max 12 305 mm min vent termination length is 19 483 mm Protective screen Warning Protective screen must be installed Mounting clip white use at least 2 Brass adaptor M8 x 5 16 18 and Set o...

Page 15: ...etween the two 45º elbows straight pipe between the two 45º elbows vent system 80 125 vent system 100 150 Table 3 Vent system 60 100 Table 4 Vent system 100 150 Offset in mm 6 150 8 200 9 8 250 12 300 13 7 350 15 3 390 Offset in mm 8 200 9 8 250 12 300 13 7 350 15 3 390 Extension in mm Height in mm 6 3 161 9 8 249 9 1 232 11 8 299 11 9 303 13 7 349 14 7 373 15 7 399 17 5 444 17 7 449 19 7 501 19 3...

Page 16: ...ngths prior to installation Inner pipe Collar Short sleeve 1 Push sliding coupling onto preceding vent pipe 2 Open collar and slide onto the following vent pipe 3 Slide short sleeve into female end of preceding vent pipe 4 Pull back inner pipe closing the gap remove spacer from inside of vent pipe if required 5 Align collar and close spring loaded latch on collar 5285 268 v3 8 Fig 5 Coaxial vent s...

Page 17: ... mm 80 125 5 133 mm 100 150 63 8 160 mm Side wall vent termination installation 1 Provide side wall opening see table above to install vent termination 2 Slide vent termination with wall flashing into opening drain openings must be located on the outside of the wall pointing downward 3 Attach wall flashing to inside of wall using the screws and plugs provided 4 Attach wall flashing to outside of w...

Page 18: ...125 and 100 150 Fig 9 Protective screen front view Dimensions a 12 305 mm b approx 3 826 mm non adjustable c 9 5 241 mm 6 Secure protective screen Fig 9 into place using the four stainless steel screws and plugs provided The protective screen MUST be installed 7 Connect vent termination from inside and route toward boiler with min 3º downward slope 5285 268 v3 8 c b a IMPORTANT ...

Page 19: ... a window or door which can be opened in any building any non mechanical air supply inlet to any building or the combustion air inlet of any other appliance H 1 ft 0 3 m for inputs up to and including 100 000 Btu h 30 kW applicable only to boiler models WB1A 8 24 and 8 30 and WB2 6 24C and 6 24 H 3 ft 0 9 m for input exceeding 100 000 Btu h 30 kW applicable to boiler models WB2 32 and up 8 underne...

Page 20: ...building authorities and municipal bylaws 8 at a location where ice formation on the ground can present a hazard 9 so that the flue gases are directed toward brickwork siding or other construction in such a manner that may cause damage from heat or condensate from the flue gases 10 where discharging hot flue gases may cause property damage or personal injury 11 within 3 ft 0 9 m from an inside cor...

Page 21: ... not included in equivalent vent calculation H For maximum equivalent vent length on all models see tables 7 and 8 and Figs 12 left 13 and 14 on the following pages H Do not exceed the maximum vent length H Do not use more than five elbows 87º or 45º within one vent system first elbow is included in count H First 87º elbow on boiler is not included in equivalent vent length calculation Table 8 Typ...

Page 22: ...ent termination when cut to the minimum permissible length Please note that the first 87º elbow on boiler is not included in equivalent length calculation 5285 268 v3 8 a Coaxial increaser for system 60 100 to 100 150 Vitodens 100 W WB1A Models 8 24 8 30 Coaxial increaser for system 60 100 to 80 125 Fig 13 Vitodens 100 W boiler with increasers a Coaxial increaser for system 80 125 to 100 150 Vitod...

Page 23: ...adaptor must be ordered with the boiler IMPORTANT Vent inspection tee or straight Elbow 87 1 per carton Sliding coupling Straight pipe 3 3 ft 1 m or 1 6 ft 0 5 m Elbow 87 1 per carton Elbow 45 2 per carton Vent termination Never shorten vertical vent termination IMPORTANT Mounting clip c w 4 screw Wall band c w vent termination Brass adaptor c w set of screws Roof flashing and storm collar field s...

Page 24: ...g 18 Sloped roof installation with offset 24 Vertical Venting Layouts Coaxial continued General installation examples Ensure that the venting system is properly supported the Vitodens 100 W and Vitodens 200 W boilers are not designed to support the weight of the venting system 5285 268 v3 8 IMPORTANT ...

Page 25: ... between the two 45º elbows straight pipe between the two 45º elbows vent system 80 125 vent system 100 150 Table 9 Vent system 60 100 Table 10 Vent system 100 150 Offset in mm 6 150 8 200 9 8 250 12 300 13 7 350 15 3 390 Offset in mm 8 200 9 8 250 12 300 13 7 350 15 3 390 Extension in mm Height in mm 6 3 161 9 8 249 9 1 232 11 8 299 11 9 303 13 7 349 14 7 373 15 7 399 17 5 444 17 7 449 19 7 501 1...

Page 26: ... lengths prior to installation Inner pipe Collar Short sleeve 1 Push sliding coupling onto preceding vent pipe 2 Open collar and slide onto the following vent pipe 3 Slide short sleeve into female end of preceding vent pipe 4 Pull back inner pipe closing the gap remove spacer from inside of vent pipe if required 5 Align collar and close spring loaded latch on collar 5285 268 v3 8 Fig 19 Coaxial ve...

Page 27: ...llar In the case of system size 80 125 5 system ensure that the adaptor g supplied with vent termination is installed 3 Connect vent pipe from below Dimensions for vent system 60 100 a 46 8 1190 mm b 28 713 mm c 21 7 552 mm d 2 4 60 mm e 4 100 mm f 5 127 mm g n a Dimensions for vent system 80 125 a 46 8 1190 mm b 28 713 mm c 21 7 552 mm d 3 80 mm e 4 3 110 mm f 5 125 mm g Coaxial adaptor 4 3 to 5 ...

Page 28: ...s 1ft 0 3m center to center See table below for the following two conditions H For sloped roof applications with distance b greater than 18 450 mm H For flat roof applications Table 13 Vent system a min distance 60 100 25 635 mm 1 80 125 25 635 mm 1 100 150 30 762 mm 1 1See WARNING below H For sloped roof applications with distance b less than 18 450 mm a minimum 18 450 mm b 18 450 mm A vent used ...

Page 29: ...system Please contact Viessmann to order Vertical vent systems with horizontal sections must have the joints in these sections secured with supplied sheet metal screws see Fig 25 to prevent the system from sagging The 4 101 6 mm screws supplied with the mounting clip provide wall or ceiling support for a H minimum distance of 2 50 8 mm H maximum distance of 3 82 5 mm See Fig 26 If a longer support...

Page 30: ...h 60 100 vent system ft m 33 10 33 10 Do not exceed the maximum vent length Table 15 Vitodens 200 W Boiler model WB2 6 24C 6 24 8 32 11 44 15 60 a max length 80 125 vent system 100 150 vent system ft m ft m 33 10 33 10 27 8 33 10 20 6 Do not exceed the maximum vent length See page 31 for increased diameter equivalent vent pipe system see tables 16 and 17 5285 268 v3 8 ...

Page 31: ...7 Maximum vent length for vertical installations Vitodens 200 W Model No WB2 6 24C 6 24 WB2 8 32 System vent size 100 150 1 100 150 1 Max vent length a 39 4 ft 12 m 33 ft 10 m 1 If used with increasers 80 125 to 100 150 Minimum vent length The minimum equivalent vertical vent length for all models is 4 ft 1 2 m length of vent termination 5285 268 v3 8 a Coaxial increaser for system 60 100 to 100 1...

Page 32: ... 0 5 m 1 6 ft 0 5 m 1 x vent pipe 1 m 3 3 ft 1 m 1 x vent termination 3 9 ft 1 2 m Total equivalent length 10 8 ft 3 3 m Equivalent vent length calculation example 2 Vitodens 100 W WB1A 8 30 Fig 29 vent system 60 100 Vitodens 200 W WB2 8 32 vent system 80 125 2 x 87º elbow 3 3 ft 1 m 2 x 45º elbow 2 ft 0 6 m 3 x vent pipe 0 5 m 4 8 ft 1 5 m 1 x vent pipe 1 m 3 3 ft 1 m 1 x sliding coupling 0 8 ft ...

Page 33: ...125 6 150 1 6 40 1 6 40 Elbow 87º Table 21 Boiler model Dimensions in mm a b c d WB1A 8 24 8 30 2 4 60 2 4 60 4 100 4 100 1 6 40 1 6 40 4 7 120 4 7 120 WB2 24 32 44 60 3 80 4 3 110 5 125 6 150 1 6 40 1 6 40 4 7 120 6 7 170 Elbow 45º 2 per carton Table 22 Boiler model Dimensions in mm a b c WB1A 8 24 8 30 2 4 60 2 4 60 4 100 4 100 1 6 40 1 6 40 WB2 24 32 44 60 3 80 4 3 110 5 125 6 150 1 6 40 1 6 40...

Page 34: ... 24 32 44 60 5 125 6 150 9 230 9 230 Horizontal vent termination Table 27 Protective screen for side wall venting installations only Boiler model Dimensions in mm a b c d e WB1A 24 30 4 100 1 6 40 31 790 26 660 3 5 90 WB2 24 32 44 60 5 125 6 150 3 80 4 3 110 29 730 29 730 26 660 26 660 3 5 90 3 5 90 Total length of vent termination pipe is 31 787 mm If required the vent termination pipe may be sho...

Page 35: ...mination for boiler models WB2 11 44 and 15 60 Dimensions for vent system 100 150 a 47 1190 mm b 30 6 779 mm c 21 7 552 mm d 7 177 mm e 4 3 110 mm f 6 150 mm Wall band for installation on inside wall or ceiling c w vertical vent termination Table 28 Boiler model Dimensions in mm a b WB1A 8 24 8 30 4 100 4 100 8 5 215 8 5 215 WB2 24 32 44 60 4 3 110 6 150 8 5 215 8 5 215 Mounting clip white for ins...

Page 36: ... 87º Straight pipe 3 3 ft 1 m 1 Vent termination c w wall flashings Protective screen c w brass adaptor and set c w brass adaptor and set of screws Mounting clip 2 Brass adaptor c w set of 20 8 x 3 8 screws 5285 268 v3 8 For replacement purposes or project specific requirements individual parts can be ordered from Viessmann Refer to the table for an outline of basic vent kit componentry that can b...

Page 37: ... system 60 100 to 80 125 Coaxial increaser for system 80 125 to 100 150 Coaxial increaser for system 60 100 to 100 150 Joint lubricant 1When ordering the straight pipe separately order with mounting clip and brass adaptor 2When ordering mounting clip separately order with brass adaptor 5285 268 v3 8 For project specific requirements individual accessory parts can be ordered from Viessmann Refer to...

Page 38: ...om air dependent see appropriate section under Single Pipe Venting starting on page 57 in this manual The boiler must be connected to a direct vent system in which all air for combustion is taken from the outside atmosphere and all combustion products are discharged safely to the outdoors The boiler must be vented and supplied with combustion air and exhaust vent as described in this section Ensur...

Page 39: ...pward slope Ensure there is no flue gas leakage into the area in which the boiler is installed Check joints for leaks with the gas supply turned off and the fan running Use a soapy solution to check for vent leaks Condensate must drain from the flue pipe to the boiler Ensure a suitable gradient of at least 3º approx 2 per 3 3 ft 50 mm per 1 m No condensate trap is required in the vent pipe system ...

Page 40: ...by the manufacturer H All piping must be fully supported Use pipe hangers at a minimum of 48 1219mm intervals to prevent sagging of the pipe H The exhaust vent air intake pipe and fittings must be securely supported by a support system suitable for the weight and design of the material employed Contact your local vent material supplier for more information specific to your installation s Ensure th...

Page 41: ...40 ANSI ASTM D2661 CSA B181 1 ULC S102 2 ANSI ASTM D2665 D1785 CSA B137 3 B181 2 ANSI ASTM F441 U S A Canada CPVC Schedule 40 ANSI ASTM D2661 CSA B181 1 ULC S102 2 ANSI ASTM D2665 D1785 CSA B137 3 B181 2 ANSI ASTM F441 U S A Canada ABS DWV Schedule 40 ANSI ASTM D2661 CSA B181 1 ULC S102 2 ANSI ASTM D2665 D1785 CSA B137 3 B181 2 ANSI ASTM F441 U S A Canada Pipe cement primer for combustion air inta...

Page 42: ...ing distances of a window or door which can be opened in any building any non mechanical air supply inlet to any building or the combustion air inlet of any other appliance H 1 ft 0 3 m for inputs up to and including 100 000 Btu h 30 kW applicable only to boiler models WB2 24C 24 H 3 ft 0 9 m for input exceeding 100 000 Btu h 30 kW applicable to boiler models WB2 32 and up 8 underneath a veranda p...

Page 43: ...n may cause problems such as above planters patios or adjacent to windows where flue gases may cause fogging 7 within 3 ft 0 9 m to the property line advisable not mandatory please check with local building authorities and municipal bylaws 8 at a location where ice formation on the ground can present a hazard 9 so that the flue gases are directed toward brickwork siding or other construction in su...

Page 44: ...r must be ordered from Viessmann see table 34 The bird screen for the air intake termination elbow must also be ordered from Viessmann see table 34 Note The Vitodens boiler has passed the zero inches vent clearance to combustibles testing requirements dictated by the Harmonized Standard ANSI Z21 13 CSA 4 9 2005 and therefore is listed for zero clearance to combustibles when vented with a single wa...

Page 45: ... adaptor Stainless steel slip joint vent starter adaptor a 3 76mm b 3 83mm c 7 178mm d approx 10 271mm e 4 120mm Parallel vent pipe starter adaptors for WB2 6 24C 6 24 8 32 Legend Air intake max insertion 2 64mm use sheet metal screws to hold in place Viessmann parallel adaptor Stainless steel slip joint vent starter adaptor a 3 76mm b 2 70mm c 7 178mm d approx 10 271mm e 4 120mm Parallel vent pip...

Page 46: ...TX V3 3 CTX V3 4 CTX V4 Contact the supplier Table 33 Other exhaust vent termination options horizontal installation Supplier Boiler Model Termination Elbow with Screen 90 or 45 see Fig 34 Termination Tee with Screen see Fig 35 Termination Hood with Screen see Fig 36 Combination Vent Air Intake Terminal see Figs NO TAG and NO TAG Flexmaster HWB1A 8 24 8 30 HWB2 6 24C 6 24 8 32 HWB2 11 44 15 60 Con...

Page 47: ...ipe System 47 Component Parts of the Venting System Termination Coupling with Screen Termination Elbow with Screen 90 or 45 Termination Tee with Screen Termination Hood with Screen 5285 268 v3 8 Fig 33 Fig 34 Fig 35 Fig 36 ...

Page 48: ...ictated by the Harmonized Standard ANSI Z21 13 CSA 4 9 2005 and therefore is listed for zero clearance to combustibles when vented with a single wall special venting system CPVC material The zero inches vent clearance to combustibles for the Vitodens boiler supercedes the clearance to combustibles listing that appears on the special venting system marking label Approved vent pipe material For exha...

Page 49: ...6 24 8 32 Legend Air intake max insertion 2 64mm use sheet metal screws to hold in place Viessmann parallel adaptor CPVC slip joint starter adaptor a 3 76mm b 2 70mm c 7 178mm d approx 93 8 237mm e 4 120mm Parallel vent pipe starter adaptors for WB2 11 44 15 60 Legend Air intake max insertion 2 64mm use sheet metal screws to hold in place Viessmann parallel adaptor CPVC slip joint starter adaptor ...

Page 50: ... field fabricated vent riser 5285 268 v3 8 min 12 Grade or Snow Level See also Vent Riser Fig 43 10 min If less than 10 required see Dim D in Fig 42 D min 12 Fig 41 Exhaust vent terminal 45 Intake vent terminal 90 Stainless steel mesh IMPORTANT Sidewall Vent Termination min 2 max 5 min 6 max 9 see D in Fig 41 Fig 42 Support Bracket Vent Riser Caulk Min 12 Max 36 Side Wall Grade or max snow level A...

Page 51: ... 40ft 12m 50ft 15 2m HWB2 11 44 4 102mm 52ft 16m HWB2 15 60 4 102mm 40ft 12m 4 3 to 4 increaser field supplied Do not order Viessmann 4 parallel adaptor Maximum of five 90 elbows allowed in the entire vent and air intake systems first 90º elbows are not included See Fig 47 Minimum vent length is 3 3 ft 1m Legend Support system Exhaust pipe termination with screen Combustion air intake with screen ...

Page 52: ... 66ft 20m 79ft 24m HWB2 8 32 3 76mm 4 102mm 49ft 15m 62ft 19m HWB2 11 44 4 102mm for larger Ø system consult Viessmann 66ft 20m HWB2 15 60 4 102mm for larger Ø system consult Viessmann 49ft 15m 4 3 to 4 increaser field supplied Do not order Viessmann 4 parallel adaptor Maximum of five 90 elbows allowed in the entire vent and air intake system See Fig 47 Minimum vent length is 3 3 ft 1m Legend Supp...

Page 53: ... 24 8 30 3 76mm 4 102mm 59ft 18m 72ft 22m HWB2 6 24C 6 24 3 76mm 4 102mm 59ft 18m 71ft 21 6m HWB2 8 32 3 76mm 4 102mm 44ft 13 5m 57ft 17 1m HWB2 11 44 4 102mm for larger Ø system consult Viessmann 59ft 18m HWB2 15 60 4 102mm for larger Ø system consult Viessmann 44ft 13 5m 4 3 to 4 increaser field supplied Do not order Viessmann 4 parallel adaptor Maximum of five 90 elbows allowed in the entire ve...

Page 54: ...weep elbow equivalent to 8 ft 2 4m if using Note If standard sweep elbows are used the allowable vent lengths are reduced One standard 90 elbow is equivalent to 8ft 2 4m of straight pipe Table 38 Standard long sweep elbows Material 90 equivalent length elbow ft m 45 equivalent length elbow ft m Stainless steel 3 0 91 2 0 61 CPVC plastic pipe 5 1 52 3 0 91 5285 268 v3 8 ...

Page 55: ...e Vitodens 200 W WB2 11 44 system diameter 4 Maximum allowable equivalent length is 52 ft 16 m see table 35 on page 51 2 x 90º stainless steel elbow 6 ft 1 83 m 2 x 45º stainless steel elbow 4 ft 1 22 m Air intake pipe 1 x 90º plastic ABS CPVC PVC elbow 5 ft 1 52 m 1 x 45º plastic ABS CPVC PVC elbow 3 ft 0 91 m Exhaust vent pipe 10 ft 3 05 m Air intake pipe 10 ft 3 05 m Combined total equivalent v...

Page 56: ...is 52 ft 16 m see table 35 on page 51 2 x 90º elbow 10 ft 3 05 m 4 x 45º elbow 12 ft 3 66 m Exhaust vent pipe 10 ft 3 05 m Air intake pipe 10 ft 3 05 m Combined total equivalent vent length a b 42 ft 12 81 m Legend Support system Exhaust pipe termination with screen Combustion air intake with screen a Equivalent vent length exhaust b Equivalent vent length air intake 5285 268 v3 8 Vitodens Boiler ...

Page 57: ...hould never be under negative pressure Exhaust fans attic fans or dryer fans may cause air to be exhausted at a rate higher than air can enter the structure for safe combustion Corrective action must be taken to ensure enough air is availabe Never cover the boiler or store debris or other materials near the boiler or in any way block the flow of adequate fresh combustion air to the boiler If boile...

Page 58: ...tem be checked by a licensed professional heating contractor at least once each year following initial installation The stainless steel special venting system is completely sealed when fully assembled Locking bands are used to reinforce the joints between pipe and fittings Do not install vent pipe such that flue gases flow downwards The direction of flue gas flow must be vertically upwards or hori...

Page 59: ...ions supplied by the manufacturer H All piping must be fully supported Use pipe hangers at a minimum of 48 1219mm intervals to prevent sagging of the pipe H The exhaust vent pipe and fittings must be securely supported by a support system suitable for the weight and design of the material employed Contact your local vent material supplier for more information specific to your installations Ensure ...

Page 60: ... systems Canada CPVC UL1738 Venting systems for gas burning appliances Categories II III IV U S A ULC S636 standard for Type BH gas venting systems Canada Pipe cement primer for combustion air intake pipe only PVC ANSI ASTM D2564 CSA B137 3 U S A Canada air intake pipe only CPVC ANSI ASTM F493 CSA B137 6 CPVC ANSI ASTM F493 CSA B137 6 ABS ANSI ASTM D2235 CSA B181 1 B182 1 Pipe cement primer for ex...

Page 61: ... following distances of a window or door which can be opened in any building any non mechanical air supply inlet to any building or the combustion air inlet of any other appliance H 1 ft 0 3 m for inputs up to and including 100 000 Btu h 30 kW applicable only to boiler models WB2 24C 24 H 3 ft 0 9 m for input exceeding 100 000 Btu h 30 kW applicable to boiler models WB2 32 and up 8 underneath a ve...

Page 62: ...ensation may cause problems such as above planters patios or adjacent to windows where flue gases may cause fogging 7 within 3 ft 0 9 m to the property line advisable not mandatory please check with local building authorities and municipal bylaws 8 at a location where ice formation on the ground can present a hazard 9 so that the flue gases are directed toward brickwork siding or other constructio...

Page 63: ...ding structure There are different types of supports available and their capacity varies with each type and diameter The following support types are available at your local vent material supplier H anchor plate H wall support H roof support H floor support H suspension band hanger In addition to the support types listed mounting clips can be used to support the weight of the venting system Contact...

Page 64: ...ler has passed the zero inches vent clearance to combustibles testing requirements dictated by the Harmonized Standard ANSI Z21 13 CSA 4 9 2000 and therefore is listed for zero clearance to combustibles when vented with a single wall special venting system The zero inches vent clearance to combustibles for the Vitodens boiler supercedes the clearance to combustibles listing that appears on the spe...

Page 65: ...86 3 300186 4 300187 Security Chimneys HWB1A 8 24 8 30 HWB2 6 24C 6 24 8 32 HWB2 11 44 15 60 3 CTX V3 3 CTX V3 4 CTX V4 Contact the supplier Note Minimum vent pipe diameter with stainless steel vent system is 3 76mm Table 43 Other exhaust vent termination options horizontal installation Supplier Boiler Model Termination Elbow with Screen 90 or 45 see Fig 34 Termination Tee with Screen see Fig 35 T...

Page 66: ...nn HWB1A 8 24 8 30 7176765 see Fig 49 2 to 3 60 to 80 1 Coaxial increaser for WB1A 8 24 8 30 Part No 7176765 Legend Boiler adaptor Coaxial increaser 60 100 80 125 2 to 3 3 diameter stainless steel starter adapter max insertion 2 64mm a 6 93 176mm b 8 82 224mm c 6 25 159mm d 10 34 263mm Starter adaptor for WB2 6 24C 6 24 8 32 11 44 and 15 60 Legend Boiler adaptor Stainless steel starter adaptor max...

Page 67: ...allation Information continued Component parts of the venting system stainless steel Termination Coupling with Screen Termination Elbow with Screen 90 or 45 Termination Tee with Screen Termination Hood with Screen 5285 268 v3 8 Fig 51 Fig 52 Fig 53 Fig 54 ...

Page 68: ...o combustibles testing requirements dictated by the Harmonized Standard ANSI Z21 13 CSA 4 9 2005 and therefore is listed for zero clearance to combustibles when vented with a single wall special venting system CPVC material The zero inches vent clearance to combustibles for the Vitodens boiler supercedes the clearance to combustibles listing that appears on the special venting system marking label...

Page 69: ...rmination frontal view Installation of field supplied vent riser 5285 268 v3 8 min 12 Grade or Snow Level See also Vent Riser Fig 43 Fig 57 Exhaust vent terminal 45 Sidewall Vent Termination min 6 Fig 58 Support Bracket Vent Riser Caulk Min 12 Max 36 Side Wall Grade or max snow level Attach Termination Elbow w Screen Fig 59 ...

Page 70: ...m 52ft 16m 63ft 19 2m HWB2 8 32 3 76mm 4 102mm 40ft 12m 50ft 15 2m HWB2 11 44 4 102mm 52ft 16m HWB2 15 60 4 102mm 40ft 12m 1 2 diameter system only available with CPVC system 2 4 3 to 4 increaser field supplied Do not order Viessmann 4 parallel adaptor Maximum of five 90 elbows allowed in the entire vent system See Fig 47 Minimum vent length is 3 3 ft 1m Legend Support system Exhaust vent terminat...

Page 71: ...0 2 51mm 3 76mm 4 102mm 40ft 12m 66ft 20m 79ft 24m HWB2 6 24C 6 24 3 76mm 4 102mm 66ft 20m 79ft 24m HWB2 8 32 3 76mm 4 102mm 49ft 15m 62ft 19m HWB2 11 44 4 102mm for larger Ø system consult Viessmann 66ft 20m HWB2 15 60 4 102mm for larger Ø system consult Viessmann 49ft 15m 4 3 to 4 increaser field supplied Do not order Viessmann 4 parallel adaptor Maximum of five 90 elbows allowed in the vent sys...

Page 72: ...rt sweep elbow equivalent to 8 ft 2 4m if using Note If standard sweep elbows are used the allowable vent lengths are reduced One standard 90 elbow is equivalent to 8ft 2 4m of straight pipe Table 48 Standard long sweep elbows Material 90 equivalent length elbow ft m 45 equivalent length elbow ft m Stainless steel 3 0 91 2 0 61 CPVC plastic pipe 5 1 52 3 0 91 5285 268 v3 8 ...

Page 73: ... boiler Vent pipe starter adaptor coaxial single wall Elbow 90 Straight pipe 1 Elbow 45 Suspension band hanger Wall band Vent termination coupling w bird screen Flashing and storm collar 1Available in different lengths For more detailed information on component parts see product literature supplied by special venting manufacturer Ensure that the venting system is properly supported See page 63 for...

Page 74: ...s Ceiling Roof opening Cut an opening for the vent pipe Size opening at least 1 25 mm larger than vent pipe diameter for combustible as well as non combustible material Flashing and storm collar installation Flashings and storm collars are field supplied Flashings and storm collars suitable for Type B vent materials or better may be used To obtain flashings and storm collars please contact your lo...

Page 75: ...ing system with positive vent pressure and passing through a roof shall extend at least 18 450 mm above the highest point where it passes through the roof and any other obstruction within a horizontal distance of 18 450 mm The special vent system shall not be routed into through or within any other vent such as an existing masonry or factory built chimney A masonry chimney flue may be used to rout...

Page 76: ...nstallation examples vertical Ensure that the venting system is properly supported the Vitodens boiler is not designed to support the weight of the venting system 5285 268 v3 8 Fig 68 Sloped roof installation Fig 69 Flat roof installation Fig 70 Sloped roof installation with offset IMPORTANT ...

Page 77: ... x 45º elbow 4 ft 1 2 m 3 x vent pipe 0 5 m 4 9 ft 1 5 m 2 x vent pipe 1 m 6 6 ft 2 m Total equivalent length 21 5 ft 6 5 m Above example will change as follows if using CPVC venting system see fig 62 2 x 90º elbow 10 ft 3 1 m 2 x 45º elbow 6 ft 1 8 m 3 x vent pipe 0 5 m 4 9 ft 1 5 m 2 x vent pipe 1 m 6 6 ft 2 m Total equivalent length 27 5 ft 8 4 m Note See also table 47 5285 268 v3 8 5285 268 v3...

Page 78: ...78 5285 268 v3 8 ...

Page 79: ...79 5285 268 v3 8 ...

Page 80: ...ssmann ca info viessmann ca Viessmann Manufacturing Company U S Inc 45 Access Road Warwick Rhode Island 02886 USA Tel 401 732 0667 Fax 401 732 0590 www viessmann us com info viessmann us com 80 5285 268 v3 8 Technical information subject to change without notice Printed on environmentally friendly recycled and recyclable paper ...

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Viessmann Vitodens 100-W WB1A-24, Installation Instructions Manual

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