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Viessmann Vitodens 100-W WB1B Series, Installation Instructions Manual, Page: 44 / 92

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Viessmann Vitodens 100-W WB1B Series Installation Instructions Manual Download Page 44

44

5608 741 - 04

 Vitodens Rigid and Flex Venting Systems Installation

 Vent Length Requirements 

(continued)

Vitodens 200-W WB2B 45, 60, 80, 105, 

B2HA 45, 60, 80, 88, 100, 112, 150, B2HB 45, 57

Maximum vent/air intake pipe length - vertical

The total equivalent length specified for a two pipe system 

is the total 

combined

 length of the exhaust vent and air

intake pipe system. Do not exceed these maximum lengths.

See table below as well as illustrations above for reference. 

All PP(s) vent material and air intake (if PP(s) used) must be 

ULC S636 listed, manufactured by M&G / DuraVent.

Legend

A

 Support system

B

 Exhaust pipe termination with screen

C

 Combustion air intake with screen

 a   Equivalent vent length (exhaust)
 b   Equivalent vent length (air intake)

Maximum vent/air intake pipe length - horizontal

 

(continued)

For PP(s) systems, all exhaust vent and air intake piping 

and elbows exposed outside, must be UV resistant 

polypropylene (supplied by the vent manufacturer).

IMPORTANT

A

B

C

a

b

Side wall

Caulk here

Exterior caulking

Exhaust/Air intake

pipe and fittings 

field supplied

Starter adaptor

Parallel adaptor

Boiler adaptor

 

Air

Flue

Maximum allowable equivalent length - vertical
Boiler Model

System Ø 

See note below

Max. combined equivalent vent length 

(a+b)*

2

WB1B 26, 35

2 in. (51 mm)

3 in. (76 mm

4 in. (102 mm)*

1

 98 ft. (30 m)

164 ft. (50 m)

200 ft. (61 m)

WB2B 19, 26, 35, B2HA 19, 28, 35, B2TA 19, 35

B2HB 19, 26, 35, B2TB 19, 35

2 in.  (51 mm)

3 in.  (76 mm)*

1

4 in.  (102 mm)*

1

115 ft. (35 m)

148 ft. (45 m)

180 ft. (55 m)

WB2B 45, 60, B2HA 45, 60, B2HB 45, 57

3 in. (76 mm)

4 in. (102 mm)*

1

 98 ft. (30 m)

148 ft. (45 m)

WB2B 80, 105, B2HA 80, 88, 100, 112

4 in. (102 mm)

131 ft. (40 m)

B2HA 150

4 in. (100 mm)*

3

5 in. (125 mm)*

4

131 ft. (40 m)

131 ft. (40 m)

*

1

  2 in. to 3 in. or 2 in. to 4 in. increaser field supplied. 

*

2

  See illustration above

*

3

  Due to higher exhaust vent pipe resistance, there is an automatic input reduction of 9% for model B2HA 150  

 

 

when a 4 inch diameter vent pipe is used.

*

4     

4 in. to 5 in. increaser field supplied.

Direct Venting (Two-pipe System)

Summary of Contents for Vitodens 100-W WB1B Series

Page 1: ...ntractor Please file in service binder Read and save these instructions for future reference Product may not be exactly as shown IMPORTANT Vitodens 100 W WB1B Series Vitodens 200 W WB2B Series Vitodens 200 W B2HA B2HB Series and Vitodens 222 F B2TA B2TB Series with preinstalled coaxial vent pipe adaptor ...

Page 2: ...to the proper installation adjustment service and maintenance of this equipment to avoid formation of carbon monoxide please read these Installation Instructions carefully Equipment venting Never operate boiler without an installed venting system An improper venting system can cause carbon monoxide poisoning Warranty Information contained in this and related product documentation must be read and ...

Page 3: ...4 Vent Termination Location Requirements 15 Vertical installations 15 Flashing and storm collar installation 15 Side Wall Venting Layouts Coaxial 16 Layout with basic coaxial vent componentry 16 Coaxial Vent Termination 19 Side wall vent termination installation 19 Protective screen 20 Vent Length 20 Equivalent vent length calculation example 21 Vertical Venting Layouts Coaxial 22 Layout of vertic...

Page 4: ...stem Stainless Steel 37 Vent Requirements CPVC 38 Additional requirements for UL ULC listed CPVC vent pipe material 38 Exhaust Vent Air Intake Connection To Boiler 38 Requirements for UL ULC Listed Rigid PP s Vent Pipe Material 39 Vent system manufacturers 39 Vent and Air Intake Pipe Starter Adaptors PP s 40 Side Wall Vent Termination Stainless Steel CPVC or PP s 42 Vent Length Requirements 43 Max...

Page 5: ...e connection to boiler 61 Requirements for UL ULC Listed Rigid PP s Vent Pipe Material 63 Vent system manufacturers 63 Boiler Connections with PP s System 64 Side Wall Vent Termination 65 Vent Length Requirements 66 Maximum vent pipe length horizontal 66 Maximum vent pipe length vertical 67 Component Installation Guide 68 General single pipe vertical venting layout 68 Single pipe vent starter adap...

Page 6: ...ial 81 Exhaust vent air intake connection to boiler 81 Side Wall Air Intake Termination 82 Vent Length Requirements 83 Maximum exhaust vent pipe length vertical and air intake pipe length vertical 83 Maximum exhaust vent pipe length vertical and air intake pipe length horizontal 84 Standard long sweep elbows for CPVC PVC ABS pipes air intake use only 85 Combustion Air Supply 86 Adaptors 88 Vent Le...

Page 7: ...he hard wired carbon monoxide detector with alarm and battery back up may be installed on the next adjacent floor level b In the event that the requirements of this subdivision can not be met at the time of completion of installation the owner shall have a period of thirty 30 days to comply with the above requirements provided however that during said thirty 30 day period a battery operated carbon...

Page 8: ...arting on page 43 for direct vent installations and page 66 for single pipe vent installations must be observed The combustion air is supplied and the flue gas discharged via a coaxial double pipe Combustion air is fed through the circular gap between the outer aluminum air intake pipe and the vent pipe Flue gases are discharged via an inner pipe constructed from flame retardant plastic polypropyl...

Page 9: ...ly dwellings and serves both dwellings 2 less than 7 ft 2 13 m above a paved sidewalk or a paved driveway located on public property 3 within 6 ft 1 83 m of a mechanical air supply inlet 1 to any building dryer vents non sealed combustion furnace and hot water heater vents are considered to be mechanical air inlets 1 Including heat recovery units 4 above a meter regulator assembly within 3 ft 0 9 ...

Page 10: ...a corrosion resistant material e g aluminum sheeting may be required to prevent staining or deterioration The protective material should be attached and sealed if necessary to the building before attaching the vent termination It is strongly recommended to install the vent termination on the leeward side of the building WARNING Failure to ensure that all flue gases have been safely vented to the o...

Page 11: ...ns draw your attention to the presence of 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 This symbol indicates that other instructions must be referenced WARNING Indicates an imminently hazardous situation which if not avoided could res...

Page 12: ...ssible and with as few bends as possible to the boiler Check proper location of gaskets in rigid PP s pipe collars Only use supplied parts with the polypropylene venting system Apply water to lubricate the joint ends of the vent pipe collar and if used the air intake pipe collar Slide pipes into each other with a gentle twisting motion Condensate must drain from the flue pipe to the boiler Ensure ...

Page 13: ...to be free of load and torque stresses We recommend fitting an on site support immediately downstream of the boiler flue connection IMPORTANT Leak test for coaxial venting systems only Viessmann recommends that the heating contractor perform a simplified leak test during boiler start up For this purpose it is sufficient to measure the CO2 concentration of the combustion air in the annular gap of t...

Page 14: ...ave the rubber seal in place This system draws combustion air from the boiler room Room Combustion air enters the boiler at the boiler vent pipe adaptor through an annular air gap If using annular air gap remove and discard air inlet cover or use optional opening to the left or right The two pipe venting system draws combustion air A through a separate air intake pipe from the outdoors Flue gases ...

Page 15: ...ith positive vent pressure and passing through a roof shall extend at least 18 in 450 mm above the highest point where it passes through the roof and any other obstruction within a horizontal distance of 18 in 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 IMPORTANT A masonry chimney flue may be used to ...

Page 16: ...t pipe adaptor 2 Transition adaptor for models 80 88 100 105 112 150 M G Duravent PolyFlue 110 150 to 100 150 or InnoFlue Centrotherm 110 150 to 110 160 3 Elbow 87º 4 Straight pipe 5 Vent termination incl wall flashings Total length of vent termination pipe may be shortened if required Follow manufacturer s instructions 6 Protective screen WARNING Protective screen MUST be installed 7 Mounting cli...

Page 17: ...tinued Anchoring system For Vitodens WB2B boiler models 80 105 and Vitodens B2HA 80 88 100 112 150 a transition adaptor is required Boiler model WB2B 80 105 B2HA 80 88 100 112 150 a b c d e f g M G Duravent PolyFlue in mm 4 3 110 6 150 1 3 40 2 50 5 5 140 4 100 6 150 Innoflue Centrotherm in mm Z Flex ECCO 4 3 110 6 150 1 3 40 2 50 5e 137 4 3 110 6 3 160 Transition adaptor for models WB2B 80 105 B2...

Page 18: ...entry continued IMPORTANT Total length of vent termination pipe may be shortened if required Follow manufacturer s instructions Legend 1 Straight pipe 2 Elbow 87 3 Telescopic extension sliding coupling 4 Straight pipe 5 Elbow 6 Straight pipe 7 Elbow 8 Vent termination incl wall flashings WARNING Protective screen MUST be installed 9 Protective screen qP Mounting clip anchoring system Note The vent...

Page 19: ...en the vent air intake and the surrounding construction which may cause air rain or flue gases to leak into the wall or the building must be sealed with approved outdoor sealant caulking to prevent leakage of any kind When installing a side wall vent system with the minimum equivalent vent length 87º elbow and vent termination a wall thickness of at least 6 in 152 mm is required For walls with a t...

Page 20: ... increasers 60 100 to 80 125 2 If used with increasers 60 100 to 100 150 3 If used with increasers 80 125 to 100 150 4 Boilers have an input reduction of 13 with any coaxial length used 5 Boilers have an input reduction of 5 with any coaxial length used Boiler model Vent system 60 100 80 125 100 150 or 110 160 WB1B 26 35 82 ft 25 m see Fig 13 98 ft 30 m 1 see Fig 14 118 ft 36 m 2 see Fig 14 WB2B 1...

Page 21: ...1 6 ft 0 5 m 1 x vent termination 2 4 ft 0 73 m Total equivalent length 13 8 ft 4 23 m IMPORTANT First elbow is excluded from in equivalent vent calculation Always include vent termination length in calculations A 10 boiler input reduction 99 ft 30 m for all sizes and all configurations Note Depending on the selected vent manufacturer a service clearance of 36 in may be required Consult the vent m...

Page 22: ...ge 26 IMPORTANT General vertical venting layout for vent systems 60 100 80 125 100 150 and 110 160 Legend 1 Vent pipe adaptor 2 Elbow 87 3 Telescopic extension 4 Straight pipe 5 Elbow 87 6 Elbow 45 7 Vent termination 8 Mounting clip anchoring system 9 Roof flashing and storm collar Use other anchoring support system components as required Ensure that the venting system is properly supported the Vi...

Page 23: ...ng Layouts Coaxial continued General installation examples Ensure that the venting system is properly supported the Vitodens 100 W 222 F and Vitodens 200 W boilers are not designed to support the weight of the venting system IMPORTANT Flat roof installation Sloped roof installation with offset Sloped roof installation ...

Page 24: ...s 2 The vent termination should be placed from above on the sloped or flat roof collar 3 Connect vent pipe from below Legend A Combustion air intake B Flue gas outlet Vertical Vent Installation Coaxial Ceiling opening information Vent system Opening Ø 60 100 M G Duravent PolyFlue Z Flex ECCO Centrotherm InnoFlue 4a in 108 mm 80 125 M G Duravent PolyFlue Z Flex ECCO Centrotherm InnoFlue 5a in 133 m...

Page 25: ...horizontal sections must have the joints in these sections secured with the supplied sheet metal screws A to prevent the system from sagging The 4 in 101 6 mm screws D supplied with the mounting clip provide wall or ceiling support for a minimum distance of 2 in 50 8 mm maximum distance of 3 in 82 5 mm If a longer support system is required use a brass adaptor M8 x 5 16 in field supplied with 5 16...

Page 26: ... m 33 10 20 6 100 150 or 110 160 ft m 43 13 26 8 2 16 5 1 Do not exceed the maximum vent length See tables on page 27 for increased diameter equivalent vent pipe system Vent length a 1 Boilers have an input reduction of 13 with any coaxial length used 2 Boilers have an input reduction of 5 with any coaxial length used Maximum vent length Boiler model a max length WB1B 26 35 WB2B 19 26 WB2B 35 WB2B...

Page 27: ...49 15 2 43 13 3 33 10 3 Minimum vent length The minimum equivalent vertical vent length for all models is 4 ft 1 2 m length of vent termination Vent length a Coaxial increaser for systems 60 100 to 100 150 60 100 to 80 125 80 125 to 100 150 110 160 Vitodens 100 W WB1B Vitodens 200 W WB2B Vitodens 200 W B2HA Vitodens 222 F B2TA Legend A 87º elbow B Vent pipe 3 3 ft 1 m C Vent pipe 1 6 ft 0 5 m D Ve...

Page 28: ...ination length in calculations Equivalent vent length calculation example Vitodens 100 W WB1B 35 or Vitodens 200 W WB2B 35 or Vitodens 200 W B2HA B2HB 35 or Vitodens 222 F B2TA B2TB 35 vent system 60 100 see illustration on this page 2 x 87º elbow 3 3 ft 1 m 2 x 45º elbow 2 ft 0 6 m 3 x vent pipe 4 8 ft 1 5 m 1 x vent pipe 3 3 ft 1 m 1 x telescopic extension average length 1 0 ft 0 31 m 1 x vent t...

Page 29: ...ate to drain Route vent pipe as directly as possible and with as few bends as possible to the boiler Condensate must drain from the flue pipe to the boiler Ensure a suitable gradient of at least 3º approx 2 in per 3 3 ft 50 mm per 1 m Use a hacksaw or sheet metal snips for stainless steel to cut pipes to length if necessary Use a file to smooth rough edges Pipe must be round and not bent into an o...

Page 30: ...NSI ASTM F441 CPVC Schedule 40 ANSI ASTM D2661 CSA B181 1 ULC S102 2 ANSI ASTM D2665 D1785 CSA B137 3 B181 2 ANSI ASTM F441 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 Polypropylene PP s UL1738 Venting systems for gas burning appliances Categories II III IV ULC S636 Standard for Type BH gas venting systems Class IIC 110 C Pipe ce...

Page 31: ...he requirements of these instructions as well as the exhaust vent air intake supplier s instructions The exhaust vent and combustion air intake system and terminations may be installed in one of the following type terminations 2 pipe system 1 Horizontal air intake and exhaust vent pipes 2 Vertical air intake and exhaust vent pipes 3 Horizontal air intake pipe and vertical exhaust vent pipe CAUTION...

Page 32: ...he remaining space if required the boiler venting system is approved for zero clearance and can be run directly beside the combustion air intake pipe WARNING Failure to ensure that all flue gases have been safely vented to the outdoors can cause property damage severe personal injury or loss of life Flue gases may contain deadly carbon monoxide WARNING Different manufacturers offer a number of dif...

Page 33: ...onnection to the Vitodens boiler must be made with the starter stainless steel adaptor supplied by others and or parallel adaptor see table on page 35 The starter adaptors are intended for a slip fit and slide into the parallel adaptor with a gentle twisting motion Combustion air intake pipe If the venting system will use CPVC ABS PVC plastic pipe for combustion air intake a CPVC starter adaptor f...

Page 34: ...2B 19 26 35 B2TA 19 35 B2TB 19 35 B2HA 19 28 35 B2HB 19 26 35 60 to 80 mm see illustration above 2 in 1 WARNING For this type of installation only Boiler comes with pre installed combustion air cover mounted on the concentric vent pipe adaptor Do not remove combustion air intake cover Removing this cover may cause unintended room air dependent operation non direct vent Room air dependent operation...

Page 35: ... A Air intake max insertion 2 in 64 mm use sheet metal screws to hold in place B Viessmann parallel adaptor C Stainless steel slip joint vent starter adaptor Legend A Air intake max insertion 2 in 64 mm use sheet metal screws to hold in place B Viessmann parallel adaptor C Stainless steel slip joint vent starter adaptor Parallel vent pipe starter adaptors for WB2B 45 60 B2HA 45 60 B2HB 45 57 Paral...

Page 36: ... in 300569 3 in 300186 3 in 300186 3 in 300186 3 in 300186 4 in 300187 Security Chimneys WB1B 26 35 WB2B 19 26 35 B2TA 19 35 B2HA 19 28 35 B2TB 19 35 B2HB 19 28 35 WB2B 45 60 B2HA 45 60 B2HB 45 57 WB2B 80 105 B2HA 80 88 100 112 150 3 in CTX V3 3 in CTX V3 3 in CTX V3 3 in CTX V3 4 in CTX V4 Contact supplier Other exhaust vent termination options horizontal installation Supplier Boiler Model Termin...

Page 37: ...inless Steel Vent Diameter 3 in 4 in 5 in WB1B 26 35 ft m 164 50 200 61 WB2B 19 26 35 B2HA 19 35 B2TB 19 35 B2HA 19 28 35 B2HB 19 26 35 ft m 148 45 180 55 WB2B 45 60 B2HA 45 60 B2HB 45 57 ft m 98 30 148 45 WB2B 80 105 B2HA 80 88 100 112 ft m 131 40 B2HA 150 ft m 131 40 1 131 40 2 Note For combination of different vent air intake pipe diameters such as Ø 3 in stainless steel vent with Ø 2 in CVPC P...

Page 38: ... by the Harmonized Standard ANSI Z21 13 CSA 4 9 and therefore is listed for zero clearance to combustibles when vented with a single pipe special venting system CPVC material The zero inches vent clearance to combustibles for the Vitodens boiler supersedes the clearance to combustibles listing that appears on the special venting system marking label IMPORTANT For exhaust vent pipe material Do not ...

Page 39: ...t may apply Permits may be required before commencement of the installation IMPORTANT When replacing parts use manufacturer s original replacement parts Because of its sealed combustion chamber the Vitodens gas fired condensing boiler is suitable for operation with balanced flue The Vitodens boiler flue gas adaptor and parallel adaptor if used are approved together under CSA 4 9 ANSI Z21 13 Standa...

Page 40: ...ires provision of combustion and ventilation air as per section Single Pipe Venting page 53 Vent pipe starter adaptors for WB1B 26 35 B2TA 19 35 B2TB 19 35 WB2B 19 26 35 B2HA 19 28 35 and B2HB 19 26 35 Vent starter adaptor is not required if using PP s system Air intake cover must stay in place DO NOT remove When using PP s material for combustion air supply pipes CPVC adaptors are not required Le...

Page 41: ...4 110 1 Parallel vent pipe starter adaptors for WB2B 45 60 B2HA 45 60 B2HB 45 57 Parallel vent pipe starter adaptors for WB2B 80 105 B2HA 80 88 100 112 150 If using PP s for combustion air CPVC adaptors are not required Legend A Air intake max insertion 2 in 64 mm B Viessmann parallel adaptor or Centrotherm parallel adaptor C Air intake starter adaptor for PVC CPVC and ABS only 80 mm to 3 in if us...

Page 42: ...e Installation Code CAN CSA B149 1 Canada or the National Fuel Gas Code ANSI Z223 1 NFPA 54 U S A See page 8 Side wall vent termination front view For PP s systems all exhaust vent and air intake piping and elbows exposed outside must be UV resistant polypropylene supplied by the vent manufacturer IMPORTANT If less than 10 in required see D in illustration below min 12 in 305 mm Intake vent termin...

Page 43: ... in 102 mm 131 ft 40 m B2HA 150 4 in 100 mm 3 5 in 125 mm 4 131 ft 40 m 131 ft 40 m 1 2 in to 3 in or 2 in to 4 in increaser field supplied 2 See illustrations below 3 Due to higher exhaust vent pipe resistance there is an automatic input reduction of 9 for model B2HA 150 when a 4 inch diameter vent pipe is used 4 4 in to 5 in increaser field supplied Note For combination of different vent air int...

Page 44: ...be UV resistant polypropylene supplied by the vent manufacturer IMPORTANT A B C a b Side wall Caulk here Exterior caulking Exhaust Air intake pipe and fittings field supplied Starter adaptor Parallel adaptor Boiler adaptor Air Flue Maximum allowable equivalent length vertical Boiler Model System Ø See note below Max combined equivalent vent length a b 2 WB1B 26 35 2 in 51 mm 3 in 76 mm 4 in 102 mm...

Page 45: ...rer Vertical Vent Installation Vitodens 100 W WB1B 26 35 Vitodens 222 F B2TA 19 35 Vitodens 222 F B2TB 19 35 Vitodens 200 W WB2B 19 26 35 Vitodens 200 W B2HA 19 28 35 Vitodens 200 W B2HB 19 26 35 Vertical Vent Installation Vitodens 200 W WB2B 45 60 80 105 Vitodens 200 W B2HA 45 60 80 88 100 112 150 Vitodens 200 W B2HB 45 57 IMPORTANT For PP s systems all exhaust vent and air intake piping and elbo...

Page 46: ... 4 in 102 mm 1 115 ft 35 m 148 ft 45 m 180 ft 55 m WB2B 45 60 B2HA 45 60 B2HB 45 57 3 in 76 mm 4 in 102 mm 1 98 ft 30 m 148 ft 45 m WB2B 80 105 B2HA 80 88 100 112 4 in 102 mm 131 ft 40 m B2HA 150 4 in 100 mm 3 5 in 125 mm 4 131 ft 40 m 131 ft 40 m Note For combination of different vent air intake pipe diameters such as Ø 3 in stainless steel vent with Ø 2 in CVPC PVC ABS air intake pipe the total ...

Page 47: ...spection tee ft m Stainless steel 3 0 91 2 0 61 CPVC plastic pipe 5 1 52 3 0 91 PP s 1 0 30 1 6 0 50 A B C D a b c Flue Air For plastic pipe only 90 long sweep elbow equivalent to 5 ft 1 5 m 90 short sweep elbow equivalent to 8 ft 2 4 m if used Vitodens 200 W WB2B 45 60 80 105 Vitodens 200 W B2HA 45 60 80 88 100 112 150 Vitodens 200 W B2HB 45 57 Legend A Support system B Flashings C Exhaust straig...

Page 48: ...ation below and illustration on page 46 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 vent length a b 38 ft 11 58 m Equivalent vent length calculation example CPVC sy...

Page 49: ...take A B C a b Exhaust Air intake pipe fittings Field supplied Flue starter adaptor Air intake starter adaptor Boiler adaptor Caulk here exterior caulking Air Flue Side wall Legend A Support system B Exhaust pipe termination with screen C Combustion air intake with screen a Equivalent vent length exhaust b Equivalent vent length air intake Equivalent vent length calculation example CPVC system con...

Page 50: ...aptor WB2B 80 105 and B2HA 80 88 100 112 150 only with M G system 5 90º elbows 6 Combustion air intake straight pipe 7 Straight vent pipe 8 Pipe support system 9 Bird screen qP Wall strap with locking band at each joint as supplied by manufacturer For PP s systems all exhaust vent and air intake piping and elbows exposed outside must be UV resistant polypropylene supplied by the vent manufacturer ...

Page 51: ...or if required field supplied C Long vent length 3 3 ft 1 m D Short vent length 1 6 ft 0 5 m E 2 pipe to coaxial adaptor field supplied Consult Venting Manual F Vertical coaxial termination G Pipe support system For PP s systems all exhaust vent and air intake piping and elbows exposed outside must be UV resistant polypropylene supplied by the vent manufacturer IMPORTANT WB1B 26 35 WB2B 19 26 35 B...

Page 52: ... 100 112 150 only with M G system 5 90º elbows 6 Combustion air intake straight pipe 7 Straight vent pipe 8 Pipe support 9 Wall plate qP Bird screen Always include vent termination length in calculations Legend A Boiler vertical coaxial termination B Air intake adaptor if required field supplied C Pipe support system D Vent adaptor if required field supplied E Long vent length 3 3 ft 1 m F 90º elb...

Page 53: ... fans may cause air to be exhausted at a rate higher than the air can enter the structure for safe combustion Corrective action must be taken to ensure enough air is available 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 boiler is installed in a confined space a space with a volume of less t...

Page 54: ...oilers WARNING Failure to provide an adequate supply of fresh combustion air can cause poisonous flue gases to enter living space which can cause severe personal injury or loss of life Viessmann recommends that the entire vent system be checked by a licensed professional heating contractor at least once each year following initial installation The remaining space surrounding a chimney liner gas ve...

Page 55: ...the boiler Condensate must drain from the flue pipe to the boiler Ensure a suitable gradient of at least 3º approx 2 in per 3 3 ft 50 mm per 1 m Use a hacksaw or sheet metal snips for stainless steel to cut pipes to length if necessary Use a file to smooth rough edges Pipe must be round and not bent into an oval shape Check proper location of gaskets in rigid PP s pipe collars Only use supplied pa...

Page 56: ... Venting Room Air Dependent CAUTION Do not use cellular foam core pipe material to vent the Vitodens boiler CAUTION Do not use PVC material in exhaust system Support system The venting system must be securely supported by a support system suitable for the weight and design of the materials employed The Vitodens boiler is not designed to support the weight of the venting system Use supports to tran...

Page 57: ...adaptors are intended for a slip fit and slide into the boiler adaptor with a gentle twisting motion Note For stainless steel exhaust vent system the minimum pipe diameter is 3 in 76 mm 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 and therefore is listed for zero clearance to combusti...

Page 58: ...105 B2HA 80 88 100 112 150 3 in 300568 3 in 300568 3 in 300568 3 in 300568 4 in 300569 3 in 300186 3 in 300186 3 in 300186 3 in 300186 4 in 300187 Security Chimneys WB1B 26 35 WB2B 19 26 35 B2TA 19 35 B2HA 19 28 35 B2TB 19 35 B2HB 19 26 35 WB2B 45 60 B2HA 45 60 B2HB 45 57 WB2B 80 105 B2HA 80 88 100 112 150 3 in CTX V3 3 in CTX V3 3 in CTX V3 3 in CTX V3 4 in CTX V4 Contact supplier Other exhaust v...

Page 59: ...9 28 35 B2HB 19 26 35 B2TA 19 35 B2TB 19 35 Coaxial combustion air inlet cover shown removed Legend A Combustion air requires 2 in CPVC adaptor B Flue gas requires 2 inc CPVC adaptor Legend A Combustion air B Flue gas When utilizing the combustion air inlet seal A for Vitodens 100 WB1B 200 B2HA B and 222 B2TA B series boilers remove the inlet seal A tear out center section and install the remainin...

Page 60: ... Starter adaptor for WB2B 45 60 80 105 B2HA 45 60 80 88 100 112 150 B2HB 45 57 Legend A Boiler adaptor B Stainless steel starter adaptor max insertion 2 in 64 mm air Combustion Flue a a 6 5 in 165 mm Coaxial boiler vent pipe connection Legend A Combustion air intake B Flue gas Additional requirements for stainless steel vent pipe material continued ...

Page 61: ... boiler adaptor with a gentle twisting motion For a vent pipe system one wire mesh screen bird screen must be ordered from Viessmann These parts are available in pre cut diameters of 2 in 3 in and 4 in see table on page 62 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 and therefore is ...

Page 62: ... in 4 in Viessmann 1 Remove and discard air inlet cover if used for combustion air intake Legend A Combustion air inlet General Installation Information continued Legend A Combustion air B Flue gas When utilizing the combustion air inlet seal A for Vitodens 100 WB1B 200 B2HA B and 222 B2TA B series boilers remove the inlet seal A tear out center section and install the remaining rubber seal back i...

Page 63: ...s and or inspection requirements that may apply Permits may be required before commencement of the installation The air intake termination for side wall air intake installations should be located on a wall that is least affected by prevailing winds High winds may affect boiler operation IMPORTANT The Vitodens boiler flue gas adaptor and parallel adaptor if used are approved together under CSA 4 9 ...

Page 64: ... for models WB2B 80 105 B2HA 80 88 100 112 150 required only if using M G Duravent system Centrotherm PP s vent component fits directly into the boiler adaptor Legend a 2 in 70 mm b 2b in 64 mm c 7b in 191 mm WARNING For this type of installation only Boiler comes with pre installed combustion air cover mounted on the concentric vent pipe adaptor Do not remove combustion air intake cover Removing ...

Page 65: ... Side wall vent termination front view IMPORTANT All PP s vent termination elbows must be secured in place as specified by the manufacturer IMPORTANT Grade or Max snow level Support bracket Attach termination elbow with screen Side wall Caulk min 12 in 305 mm max 36 in 914 mm Vent riser Exhaust vent terminal 45 or 90 Grade or Snow Level min 12 in 305 mm max 9 in 229 mm All PP s vent termination el...

Page 66: ...48 ft 45 m WB2B 80 105 B2HA 80 88 100 112 4 in 102 mm 131 ft 40 m B2HA 150 4 in 100 mm 4 5 in 125 mm 5 131 ft 40 m 131 ft 40 m 1 2 in diameter system only available with CPVC PP s system 2 4 in 3 in to 4 in increaser field supplied 3 See illustration below 4 Due to higher exhaust vent pipe resistance there is an automatic input reduction of 9 for model B2HA 150 when a 4 inch diameter vent pipe is ...

Page 67: ...0 m 200 ft 61 m WB2B 19 26 35 B2HA 19 28 35 B2TA 19 35 B2HB 19 26 35 B2TB 19 35 2 in 51 mm 1 3 in 76 mm 2 4 in 102 mm 2 115 ft 35 m 148 ft 45 m 180 ft 55 m WB2B 45 60 B2HA 45 60 B2HB 45 57 3 in 76 mm 4 in 102 mm 2 98 ft 30 m 148 ft 45 m WB2B 80 105 B2HA 80 88 100 112 4 in 102 mm 131 ft 40 m B2HA 150 4 in 100 mm 4 5 in 125 mm 5 131 ft 40 m 131 ft 40 m Legend A Exhaust straight coupling with screen ...

Page 68: ...0 4 Straight pipe 1 5 Elbow 45 6 Suspension band hanger 7 Wall band 8 Vent termination coupling with bird screen 9 Flashing and storm collar 1 Available 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 pages 25 and 64 for details Vent pipe starter adaptor is...

Page 69: ... gasket of the boiler vent pipe adaptor coaxial Failure to comply could result in leakage potentially causing personal injury or death Vitodens 200 W WB2B 45 60 80 105 B2HA 45 60 80 88 100 112 150 B2HB 45 57 Installing single pipe vent adaptor for stainless steel and CPVC vent systems not required for PP s For PP s vent system see page 64 The boiler vent pipe adaptor comes pre installed for all Vi...

Page 70: ... 1 m B 45º elbow C Vent pipe 1 6 ft 0 5 m D 90º elbow Equivalent vent length calculation example stainless steel system Vitodens 100 W WB1B 26 35 222 F B2TA 19 35 B2TB 19 35 200 W B2HA 19 28 35 B2HB 19 26 35 2 x 90º elbow 6 ft 1 8 m 2 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 us...

Page 71: ...e bird screen for sloped or flat roof collars in accordance with the manufacturer s instructions General installation examples vertical Flat roof installation Ensure that the venting system is properly supported the Vitodens boiler is not designed to support the weight of the venting system IMPORTANT Sloped roof installation with offset Sloped roof installation Single Pipe Venting Room Air Depende...

Page 72: ...vertical vent pipes of multiple Vitodens boilers a minimum clearance of 4 inches 100 mm is required between the outside edges of each vent pipe Multiple boiler installations horizontal termination with multiple boilers When terminating the horizontal vent pipes of multiple Vitodens boilers a minimum clearance of 12 inches 305 mm is required between the outside edges of each vent pipe Note terminat...

Page 73: ...rs mounting clips which can be used in conjunction with the above support types to support the weight of the venting system Please contact Viessmann to order For PP s systems all exhaust vent and air intake piping and elbows exposed outside must be UV resistant polypropylene supplied by the vent manufacturer Bracing Contact your local vent material supplier for more information specific to your in...

Page 74: ...flue pipe should be a minimum of 3º equivalent to 2 in per 3 3 ft 50 mm per 1 m The length of the flexible vent system can be determined two ways use a plumb line to measure the existing chimney length add an extra 16 in 40 cm for each bend The flexible vent system can be shortened by cutting with a saw or scissors within a groove The correct length can also be determined after installing it in th...

Page 75: ...Seal the top wall of the chimney with a water resistant sealant When cutting rigid pipes to length debur and clean pipes For flexible vent systems In conjunction with these instructions follow the installation instructions supplied by the special venting manufacturer General Flex Venting Installation continued Recommended venting practice When installing a venting system the following recommended ...

Page 76: ... ULC S102 2 ANSI ASTM D2665 D1785 CSA B137 3 B181 2 ANSI ASTM F441 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 Pipe cement primer for combustion air intake pipe PVC ANSI ASTM D2564 CSA B137 3 CPVC ANSI ASTM F493 CSA B137 6 ABS ANSI ASTM D2235 CSA B181 1 B182 1 Note Always use latest edition of applicable standard Approved materia...

Page 77: ...vent freezing of the condensate Armaflex insulation with b in thickness and higher can be used The connection between the boiler and the base of the flexible pipe is made with rigid vent components flexible pipe cannot be run directly to the boiler The flexible pipe can only be used in vertical installations Direct venting two pipe system or single pipe room air independent is acceptable refer to ...

Page 78: ...al Acceptable size length and number of elbows on combined vent air intake system Installation is in accordance with prevailing provisions of local codes Installation complies with the requirements of these instructions as well as the exhaust vent air intake supplier s instructions The exhaust vent and combustion air intake system and terminations may be installed in one of the following type term...

Page 79: ... a 3 in 80 mm nominal b 2 in 50 mm c 5b in 140 mm e 3 in 80 mm Air inlet intake cover must be in place DO NOT remove Flue Air Optional left connection for air intake WARNING For this type of installation only Boiler comes with pre installed combustion air cover mounted on the concentric vent pipe adaptor Do not remove combustion air intake cover Removing this cover may cause unintended room air de...

Page 80: ...45 60 80 105 and B2HA 45 60 80 88 100 112 150 B2HB 45 57 Legend for 80 105 A Air intake max insertion 2b in 64 mm B Viessmann parallel adaptor C Slip joint vent starter transition adaptor 4e to 4 in 110 to 100 mm only required if M G Duravent system is used D Viessmann CPVC adaptor a 4 in 100 mm b 5d in 130 mm c 9e in 237 mm d 127 8 in 327 mm e 5b in 140 mm Legend for 45 60 A Air intake max insert...

Page 81: ...0 mm 2 in 50 mm 2 in 50 mm 2 in 50 mm 3 in 80 mm 3 in 80 mm 3 in 80 mm 4 in 100 mm 4 in 100 mm Viessmann 1 Wire Mesh Screen for Air Intake Termination WB1B 26 35 WB2B 19 26 35 B2HA 19 28 35 B2HB 19 26 35 B2TA 19 35 B2TB 19 35 WB2B 45 60 B2HA 45 60 B2HB 45 57 WB2B 80 105 B2HA 80 88 100 112 150 2 in 50 mm 3 in 80 mm 4 in 100 mm if used 3 in 80 mm 4 in 100 mm if used 3 in 80 mm 4 in 100 mm if used 3 ...

Page 82: ...ode ANSI Z223 1 NFPA 54 U S A See page 9 Installation of field fabricated air intake riser side view Side Wall Support Bracket Attach Termination Elbow w Screen Air Intake Riser Caulk Min 12 in 31 cm Grade or max snow level Side wall air intake termination side view Attach Termination Elbow w Screen Air Intake min 2 in 50 mm IMPORTANT WARNING Air intake must be at least 12 in 300 mm above the anti...

Page 83: ...n 100 mm 74 ft 23 m 111 ft 34 m WB2B 80 105 B2HA 80 88 100 112 4 in 100 mm or 4 3 in 110 mm 98 ft 30 m B2HA 150 4 in 100 mm 5 in 125 mm 98 ft 30 m 98 ft 30 m Maximum allowable equivalent length Note For combination of different vent air intake pipe diameters such as Ø 3 in 80 mm PP s flexible vent with Ø 2 in 50 mm CVPC PVC ABS air intake pipe the total equivalent length must be used for the small...

Page 84: ...ow Max combined equivalent vent length a b WB1B 26 35 2 in 50 mm 3 in 80 mm 4 in 100 mm 65 ft 20 m 123 ft 37 m 150 ft 46 m WB2B 19 26 35 B2HA 19 28 35 B2HB 19 26 35 B2TA 19 35 B2TB 19 35 2 in 50 mm 3 in 80 mm 4 in 100 mm 84 ft 26 m 111 ft 34 m 135 ft 41 m WB2B 45 60 B2HA 45 60 B2HB 45 57 3 in 80 mm 4 in 100 mm 74 ft 23 m 111 ft 34 m WB2B 80 105 B2HA 80 88 100 112 4 in 100 mm or 4 3 in 110 mm 98 ft...

Page 85: ...used the allowable vent lengths are reduced One standard 90 elbow is equivalent to 8 ft 2 4 m of straight pipe Standard long sweep elbows Material 90 elbow equivalent length 45 elbow equivalent length 87 elbow 87 inspection tee CPVC plastic pipe 5 ft 1 52 m 3 ft 0 91 m PP s flexible pipe system 1 ft 0 3 m 1 6 ft 0 5 m For Plastic pipe only 90 long sweep elbow equivalent to 5 ft 1 5 m 90 short swee...

Page 86: ...aterial The Vitodens 100 W and 200 W boilers are approved for direct exhaust non sealed combustion operation in vertical arrangements only Provisions for combustion and ventilation air must be made in accordance with CAN CSA B149 1 or 2 Natural Gas Installation Codes for installations in Canada or in accordance with sections for Combustion and Ventilation Air of the National Fuel Gas Code ANSI Z22...

Page 87: ...install boiler during construction involving drywall or heavy dust of any kind Dust can accumulate in the burners and cause sooting Install boiler after all heavy dust construction is completed CAUTION If the boiler has been exposed to high dust levels all burners and the heat exchanger must be cleaned prior to use Inspect all finished exhaust vent air intake piping to ensure Vent pipe and fitting...

Page 88: ... Duravent system Legend b 7b in 191 mm This boiler adaptor is shown pre installed for models WB2B 45 60 B2HA 45 60 B2HB 45 57 The connecting rigid pipe PPs fits directly into the boiler adaptor Legend c 2b in 64 mm Note For combination of different vent air intake pipe diameters such as Ø 3 in 80 mm PP s flexible vent with Ø 2 in 50 mm CVPC PVC ABS air intake pipe the total equivalent length must ...

Page 89: ...2B 80 105 B2HA 80 88 100 112 150 4e to 4 in 110 to 100 mm M G Duravent 1 Installing single pipe vent increaser adaptor Vitodens if required 100 W WB1B 26 35 200 W WB2B 19 26 35 200 W B2HA 19 28 35 B2HB 19 26 35 and 222 F B2TA 19 35 and B2TB 19 35 Installing single pipe vent transition adaptor 4e to 4 in 110 to 100 mm M G Duravent only Vitodens 200 W WB2B 80 105 and B2HA 80 88 100 112 150 WARNING P...

Page 90: ...adaptor 2 Double pipe adaptor used for direct vent system 3 Adaptors 4 90o elbows 5 Combustion air intake vent material 6 Straight pipe 7 Vent termination 8 Wall plate 9 90o support elbow qP Wall sleeve qQ Adaptor set qW Coupling qE Flex pipe qR Spacer cross qT Support cross qZ Chimney cap with termination pipe qU Pipe support mounting clip qI Air intake starter adaptor Componentry ...

Page 91: ...91 5608 741 04 Vitodens Rigid and Flex Venting Systems Installation ...

Page 92: ...5608 741 04 Technical information subject to change without notice Printed on environmentally friendly recycled and recyclable paper Vitodens Rigid and Flex Venting Systems Installation ...

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