Viessmann Vitodens 200-W WB2B Series Installation Instructions Manual
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Viessmann Vitodens 200-W WB2B Series Installation Instructions Manual

Rigid and flex pipe venting systems
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Installation Instructions

for use by heating contractor
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)
Rigid and Flex Pipe Venting Systems
5608 741 - 04 12/2015
Product may not be exactly as shown
IMPORTANT
Read and save these instructions
for future reference.
Please file in service binder

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Summary of Contents for Viessmann Vitodens 200-W WB2B Series

  • Page 1: Installation Instructions

    Installation Instructions for use by heating contractor 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) Rigid and Flex Pipe Venting Systems Product may not be exactly as shown...

  • Page 2: Safety, Installation And Warranty Requirements

    Introduction Vitodens Rigid and Flex Venting Systems Installation Safety, Installation and Warranty Requirements Please ensure that these instructions are read and understood before commencing installation. Failure to comply with the instructions listed below and details printed in this manual can cause product/property damage, severe personal injury, and/or loss of life.

  • Page 3: Table Of Contents

    Table of Contents Vitodens Rigid and Flex Venting Systems Installation Page Safety Safety, Installation and Warranty Requirements....2 How these Installation Instructions are Structured...2 Important Regulatory and Installation Requirements..7 Operation with direct vent using coaxial vent system..8 Vent termination location requirements (for installations in Canada)........9 Vent termination location requirements (for installations in the U.S.A.)........9...
  • Page 4 Table of Contents Vitodens Rigid and Flex Venting Systems Installation Page Direct Venting General Installation Information........29 Installation steps (outline)........29 (Two-pipe System) Exhaust and combustion air piping material....29 Approved materials for two-pipe system....30 Exhaust Vent/Air Intake Requirements......31 Combustion air supply..........31 General requirements..........32 Vent Requirements - Stainless Steel......33 Additional requirements for stainless steel vent pipe material..........33...
  • Page 5 Table of Contents Vitodens Rigid and Flex Venting Systems Installation Page Single Pipe Venting Vent Requirements............53 Combustion air supply..........53 (Room Air Dependent) General Installation Information........54 Installation steps (outline)........55 Exhaust vent pipe material........55 Approved material for single pipe vent system...56 Support system.............56 Additional requirements for stainless steel vent pipe material..........57 Exhaust vent pipe connection to boiler......57...
  • Page 6 Table of Contents Vitodens Rigid and Flex Venting Systems Installation Page General Information General Flexible Pipe Installation........74 Exhaust vent installation steps.........74 Recommended venting practice.......75 Ceiling / roof opening..........75 Approved materials for two-pipe system....76 Exhaust Vent Requirements........77 Vent system suppliers..........77 Direct Venting Combustion Air Supply..........78 Starter Adaptor............79 (Two-pipe System)

  • Page 7: Important Regulatory And Installation Requirements

    Safety Vitodens Rigid and Flex Venting Systems Installation Important Regulatory and Installation Requirements For installations on the Commonwealth of Massachusetts, the following modifications to NFPA-54 chapter 10 apply: Excerpt from 248 CMR 5-08: 2(a) For all side-wall horizontally vented gas fueled equipment installed in every dwelling, building or structure used in whole or in part for residential purposes, including those owned or operated by the Commonwealth and where the side-wall exhaust vent termination is less than (7) feet above finished grade in the area of the venting, including but not limited to decks and porches, the following requirements shall be satisfied:...

  • Page 8: Operation With Direct Vent Using Coaxial Vent System

    To ensure safe operation of the appliance, Viessmann In cases where the leak test is not required, Viessmann recommends that the system be inspected once a year by recommends that the heating contractor perform a qualified service technician.

  • Page 9: Vent Termination Location Requirements

    Safety Vitodens Rigid and Flex Venting Systems Installation Important Regulatory and Installation Requirements (continued) Vent termination location requirements (for installation in Canada) The vent must be installed observing local regulations in addition to National Codes, CAN/CSA-B149.1 or 2. A vent must NOT terminate... 8...underneath a veranda, porch or deck, unless: 1...directly above a paved sidewalk or paved driveway which is located between two single-family dwellings and...

  • Page 10: For Coaxial Venting Systems Only

    Safety Vitodens Rigid and Flex Venting Systems Installation Important Regulatory and Installation Requirements (continued) Clearance to combustibles Front Rear Left Right Vent pipe 0 in. (mm) 0 in. (mm) 0 in. (mm) 0 in. (mm) 0 in. (mm) 0 in. (mm) Vent-air intake system must be properly installed and sealed.

  • Page 11: About These Installation Instructions

    General Information Vitodens Rigid and Flex Venting Systems Installation About These Installation Instructions Take note of all symbols and notations intended to draw attention to potential hazards or important product information. These include “WARNING”, “CAUTION”, and “IMPORTANT”. See below. WARNING Warnings draw your attention to the presence of Indicates an imminently hazardous situation which, potential hazards or important product information.

  • Page 12: General Rigid Venting Installation

    General Information Vitodens Rigid and Flex Venting Systems Installation General Rigid Venting Installation Installation steps (outline) Vent system manufacturers The following Coaxial and PP(s) vent system manufacturers WARNING may be contacted for assistance in designing the appropriate venting system for Vitodens boilers. Ensure that the entire venting system is protected from All manufacturers deliver PP(s) rigid and flexible vents in physical damages.

  • Page 13: Recommended Venting Practice

    Route the flue gas connection to be free of load and torque stresses. We recommend fitting an on-site support immediately downstream of the boiler flue connection. Leak test (for coaxial venting systems only) Viessmann recommends that the heating contractor perform If higher CO values or lower O values are measured, inspect the venting system thoroughly.

  • Page 14: Vitodens Boiler Vent Adaptors

    General Information Vitodens Rigid and Flex Venting Systems Installation General Rigid Venting Installation (continued) The two-pipe venting system draws combustion air Vitodens boilers vent adaptors A through a separate air intake pipe from the outdoors. This system draws combustion air from the boiler room. Flue gases B are discharged to the outdoors via the Room/Combustion air enters the boiler at the boiler vent single-pipe rigid-pipe and flexible vent system.

  • Page 15: Vent Termination Location Requirements

    General Information Vitodens Rigid and Flex Venting Systems Installation Vent Termination Location Requirements Vertical installations The vent must be installed observing local regulations in addition to National Codes, CAN/CSA-B149.1 or 2 (for installations in Canada) or ANSI-Z223.1 or NFPA 54 (for installations in the U.S.A.).

  • Page 16: Side Wall Venting Layouts (Coaxial)

    Side Wall Vent Installation (Coaxial) Vitodens Rigid and Flex Venting Systems Installation Side Wall Venting Layouts (Coaxial) Layout with basic coaxial vent componentry For WB2B 80, 105 and B2HA 80, 88, 100, 112, 150 models only Transition 110/150 to 100/150 M&G Duravent Transition 110/150 to 110/160 Centrotherm Max.
  • Page 17 Side Wall Vent Installation (Coaxial) Vitodens Rigid and Flex Venting Systems Installation Side Wall Venting Layouts (Coaxial) (continued) Layout with basic coaxial vent componentry (continued) Anchoring system For Vitodens WB2B boiler models 80, 105 and Vitodens B2HA 80, 88, 100, 112, 150 a transition adaptor is required. Side wall venting layout Boiler model WB2B 80, 105, B2HA 80, 88, 100, 112, 150...
  • Page 18 Side Wall Vent Installation (Coaxial) Vitodens Rigid and Flex Venting Systems Installation Side Wall Venting Layouts (Coaxial) (continued) Layout with basic coaxial vent componentry (continued) Legend 1 Straight pipe 2 Elbow, 87° 3 Telescopic extension (sliding coupling) 4 Straight pipe 5 Elbow 6 Straight pipe Side wall venting layout...

  • Page 19: Coaxial Vent Termination

    Side Wall Vent Installation (Coaxial) Vitodens Rigid and Flex Venting Systems Installation Coaxial Vent Termination Front view Wall opening information Vent system Opening Ø Legend 60/100 4a in. (108 mm) 1 Vent termination M&G/Duravent, PolyFlue, 2 Wall flashing (inside) Z-Flex, ECCO, Centrotherm InnoFlue 3 Wall flashing (outside) 80/125 5a in.

  • Page 20: Protective Screen

    Side Wall Vent Installation (Coaxial) Vitodens Rigid and Flex Venting Systems Installation Coaxial Vent Termination (continued) Protective screen 1. Secure protective screen A into place, using the four Note: Termination may not be exactly as shown, refer stainless steel screws and anchors. to the vent manufacturers specific component specifications.

  • Page 21: Vent Length

    Side Wall Vent Installation (Coaxial) Vitodens Rigid and Flex Venting Systems Installation Venting Length (continued) Equivalent vent length calculation Legend A 87º elbow B Vent pipe 3.3 ft. (1 m) C Vent pipe 1.6 ft. (0.5 m) D Vent termination First elbow not included in equivalent vent calculation.

  • Page 22: Vertical Venting Layouts (Coaxial)

    Vertical Vent Installation (Coaxial) Vitodens Rigid and Flex Venting Systems Installation Vertical Venting Layouts (Coaxial) Layout of Vertical Vent systems with accessories Select from the vertical vent components below as required. Do not exceed maximum equivalent vent length, see page 26). Legend 1 Vent pipe adaptor 2 Elbow, 87°...

  • Page 23: General Installation Examples

    Vertical Vent Installation (Coaxial) Vitodens Rigid and Flex Venting Systems Installation Vertical Venting Layouts (Coaxial) (continued) General installation examples Sloped roof installation Flat roof installation Sloped roof installation with offset IMPORTANT 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.

  • Page 24: Component Installation Guide

    Vertical Vent Installation (Coaxial) Vitodens Rigid and Flex Venting Systems Installation Component Installation Guide Ceiling opening information Coaxial vent termination installation Vent system Opening Ø 60/100 4a in. (108 mm) M&G/Duravent, PolyFlue, Z-Flex, ECCO, Centrotherm InnoFlue 80/125 5a in. (133 mm) M&G/Duravent, PolyFlue, Z-Flex, ECCO,Centrotherm InnoFlue, 100/150...

  • Page 25: Installation Of Support System

     suspension band (hanger).  In addition to the support types listed above Viessmann offers 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.

  • Page 26: Vent Length Requirements

    Vertical Vent Installation (Coaxial) Vitodens Rigid and Flex Venting Systems Installation Vent Length Requirements Maximum vent length Boiler model a (max. WB1B 26, 35 WB2B 19, 26 WB2B 35 WB2B 45 WB2B 60 WB2B 80, 105 length) 60/100 ft. (m) 82 (25) 30 (9) 23 (7)

  • Page 27: Maximum Vent Length With Increasers

    Vertical Vent Installation (Coaxial) Vitodens Rigid and Flex Venting Systems Installation Vent Length Requirements (continued) Maximum vent length with increasers Maximum vent length for vertical installations (Vitodens 100-W) Model No. WB1B 26, 35 System vent size 80/125* 100/150* 110/160 Max. vent length “a” ft. (m) 98 (30) 118 (36) If used with increasers 60/100 to 80/125.

  • Page 28: Equivalent Vent Length Calculation Example

    Vertical Vent Installation (Coaxial) Vitodens Rigid and Flex Venting Systems Installation Vent Length Requirements (continued) Equivalent vent length calculation example Type of fitting Equivalent length 87º elbow/ 1.6 ft. (0.5 m) 87º inspection tee 45º elbow 1 ft. (0.3 m) IMPORTANT Always include vent termination length in calculations.

  • Page 29: Direct Venting (Two-Pipe System)

    Direct Venting (Two-pipe System) Vitodens Rigid and Flex Venting Systems Installation General Installation Information Installation steps (outline) Route vent pipe as directly as possible and with as few  bends as possible to the boiler. Exhaust and combustion air piping material Condensate must drain from the flue pipe to the boiler.

  • Page 30: Approved Materials For Two-Pipe System

    Direct Venting (Two-pipe System) Vitodens Rigid and Flex Venting Systems Installation General Installation Information (continued) Approved materials for two-pipe system Part Material Certified to Standards Applicability Exhaust pipe and Stainless steel UL1738 “Venting systems for gas-burning appliances, U.S.A./Canada fitting Categories II, III, IV” ULC S636 “Standard for Type BH gas venting systems”...

  • Page 31: Exhaust Vent/Air Intake Requirements

    Direct Venting (Two-pipe System) Vitodens Rigid and Flex Venting Systems Installation Exhaust Vent/Air Intake Requirements Combustion Air Supply Inspect all finished exhaust vent/air intake piping to ensure: The Vitodens boiler is suitable for sidewall, as well as vertical venting. The Vitodens 100-W, 222-F and 200-W Vent/air intake pipe and fittings are of approved material.

  • Page 32: General Requirements

    Ensure a suitable gradient of at least 3º [approx. 2 in. per 3.3 ft. (50 mm per 1 m)]. Viessmann recommends that the entire vent system be checked by a licensed professional heating contractor at No condensate trap is required in the vent pipe system.

  • Page 33: Vent Requirements - Stainless Steel

    Viessmann (see table on page 35). The bird screen for the air intake termination elbow must also be ordered from Viessmann.
  • Page 34 (continued) Additional requirements for stainless steel vent pipe material (continued) Viessmann single pipe PP(s) increaser and 2 in. air intake CPVC adaptor (if using ABS/CPVC/PVC material) must be ordered, (see table below for part number). Minimum pipe diameter available for exhaust stainless steel pipe is 3 in.
  • Page 35 A Air intake, max. insertion 2½ in. (64 mm) (use sheet metal screws to hold in place) metal screws to hold in place) B Viessmann parallel adaptor B Viessmann parallel adaptor C Stainless steel slip joint vent starter adaptor C Stainless steel slip joint vent starter adaptor...
  • Page 36 Direct Venting (Two-pipe System) Vitodens Rigid and Flex Venting Systems Installation Vent Requirements - Stainless Steel (continued) Additional requirements for stainless steel vent pipe material (continued) Exhaust vent termination options (vertical installation) Supplier Boiler Model Stainless Steel Slip Vertical Termination Joint Starter Adaptor Coupling with Screen Flexmaster WB1B 26, 35, WB2B 19, 26, 35...

  • Page 37: Steel

    Direct Venting (Two-pipe System) Vitodens Rigid and Flex Venting Systems Installation Vent Requirements - Stainless Steel (continued) Maximum equivalent length Vitodens 100-W / 200-W WB2B and B2HA / 222-F B2TA Series (horizontally or vertically vented) Boiler model Stainless Steel Vent Diameter 3 in.

  • Page 38: Vent Requirements - Cpvc

    Vitodens boilers. single pipe special venting system (CPVC material). See table below and contact Viessmann to order special The zero inches vent clearance to combustibles parts. for the Vitodens boiler supersedes the clearance to...

  • Page 39: Requirements For Ul/Ulc Listed Rigid Pp(S) Vent Pipe Material

    The venting system components are tested and listed to ULC S636 or UL 1738 and are marked and labelled on To ensure safe operation of the appliance, Viessmann each component. recommends that the system be inspected once a year by a qualified service technician.

  • Page 40: Vent And Air Intake Pipe Starter Adaptors - Pp(S)

    Direct Venting (Two-pipe System) Vitodens Rigid and Flex Venting Systems Installation Vent and Air Intake Pipe Starter Adaptors - PP(s) Vent pipe starter adaptors for WB1B 26, 35, B2TA 19, 35, WARNING B2TB 19, 35, WB2B 19, 26, 35, B2HA 19, 28, 35 and B2HB 19, 26, 35 (For this type of installation only:) Vent starter adaptor is not required if using PP(s) system.
  • Page 41 Legend A Air intake, max. insertion 2½ in. (64 mm) A Air intake, max. insertion 2½ in. (64 mm) B Viessmann parallel adaptor or Centrotherm parallel B Viessmann parallel adaptor adaptor C PP(s) slip joint transition adaptor (110 mm to 100 mm) C Air intake starter adaptor for PVC, CPVC and ABS only.

  • Page 42: Side Wall Vent Termination - Stainless Steel

    Direct Venting (Two-pipe System) Vitodens Rigid and Flex Venting Systems Installation Side Wall Vent Termination - Stainless Steel, CPVC or PP(s) If less than 10 in. required (see D in IMPORTANT illustration below) min 12 in. (305 mm) The exhaust vent/air intake system must terminate so that proper clearances are maintained as cited in local codes or the latest edition of the “Natural Gas and 10 in.

  • Page 43: Vent Length Requirements

    Direct Venting (Two-pipe System) Vitodens Rigid and Flex Venting Systems Installation Vent Length Requirements The total equivalent length specified for a two pipe system Maximum vent/air intake pipe length - horizontal is the total combined length of the exhaust vent and air intake pipe system.
  • Page 44 Direct Venting (Two-pipe System) Vitodens Rigid and Flex Venting Systems Installation Vent Length Requirements (continued) Maximum vent/air intake pipe length - horizontal (continued) Side wall Caulk here Exhaust/Air intake Exterior caulking pipe and fittings field supplied Flue Starter adaptor Parallel adaptor Boiler adaptor Vitodens 200-W WB2B 45, 60, 80, 105, B2HA 45, 60, 80, 88, 100, 112, 150, B2HB 45, 57...
  • Page 45 Direct Venting (Two-pipe System) Vitodens Rigid and Flex Venting Systems Installation Vent Length Requirements (continued) Maximum vent/air intake pipe length - vertical (continued) IMPORTANT Note: For combination of different vent/air intake pipe diameters, such as Ø 3 in. stainless steel vent with All PP(s) vent termination elbows, must be secured in Ø...

  • Page 46: Maximum Vent/Air Intake Pipe Length - Horizontal/Vertical (Hybrid System)

    Direct Venting (Two-pipe System) Vitodens Rigid and Flex Venting Systems Installation Vent Length Requirements (continued) The total equivalent length specified for a two pipe system Maximum vent/air intake pipe length - horizontal/vertical (hybrid system) is the total combined length of the exhaust vent and air intake pipe system.

  • Page 47: Standard Long Sweep Elbows

    Direct Venting (Two-pipe System) Vitodens Rigid and Flex Venting Systems Installation Vent Length Requirements (continued) Maximum vent/air intake pipe length - horizontal/vertical IMPORTANT (hybrid system) (continued) For PP(s) systems, all exhaust vent and air intake piping Flue and elbows exposed outside, must be UV resistant polypropylene (supplied by the vent manufacturer).

  • Page 48: Equivalent Vent Length Calculation Example

    Direct Venting (Two-pipe System) Vitodens Rigid and Flex Venting Systems Installation Vent Length Requirements (continued) Equivalent vent length calculation example - stainless steel system with plastic air intake pipe Vent type Type of fitting Equivalent length ft. (m) Exhaust vent pipe 90°...
  • Page 49 Direct Venting (Two-pipe System) Vitodens Rigid and Flex Venting Systems Installation Vent Length Requirements (continued) Equivalent vent length calculation example - CPVC system (continued) Side wall Caulk here Exhaust/ (exterior caulking) Air intake pipe fittings Field supplied Flue Flue starter adaptor Air intake starter adaptor Boiler adaptor Vitodens 100-W WB1B 26, 35,...

  • Page 50: Component Parts Of The Pp(S) Venting System

    Direct Venting (Two-pipe System) Vitodens Rigid and Flex Venting Systems Installation Component Parts of the PP(s) Venting System Vertical pipe system Legend A Combustion air intake B Flue gas outlet 1 Boiler vent pipe adaptor 2 Double pipe adaptor 3 Air intake adaptor (PVC, CPVC, ABS) 4 PP(s) adaptor (WB2B 80, 105 and B2HA 80, 88, 100, 112, 150 only with M&G system).
  • Page 51 Direct Venting (Two-pipe System) Vitodens Rigid and Flex Venting Systems Installation Component Parts of the PP(s) Venting System (continued) WB1B 26, 35 WB2B 19, 26, 35 B2HA 19, 28, 35 B2HB 19, 26, 35 B2TA 19, 35 B2TB 19, 35 Legend A Air intake adaptor B Vent adaptor (if required) field supplied...

  • Page 52: Horizontal Pipe System

    Direct Venting (Two-pipe System) Vitodens Rigid and Flex Venting Systems Installation Component Parts of the PP(s) Venting System (continued) Horizontal pipe system Legend A Combustion air intake B Flue gas outlet 1 Boiler vent pipe adaptor B2HA 45, 60, 2 Double pipe adaptor 88,100, 3 Air intake adaptor (PVC, CPVC, ABS) 112, 150...

  • Page 53: Single Pipe Venting

    Single Pipe Venting (Room Air Dependent) Vitodens Rigid and Flex Venting Systems Installation Vent Requirements Combustion air supply The boiler location should never be under negative pressure. This boiler requires fresh air for safe operation and must Exhaust fans, attic fans, or dryer fans may cause air to be be installed in a mechanical room where there are provisions exhausted at a rate higher than the air can enter the structure for adequate combustion and ventilation air.

  • Page 54: General Installation Information

    Check joints for leaks with the gas supply turned off and the fan running. Use a soapy solution to check for vent Viessmann recommends that the entire vent system be leaks. checked by a licensed professional heating contractor at Condensate must drain from the flue pipe to the boiler.

  • Page 55: Installation Steps (Outline)

    Single Pipe Venting (Room Air Dependent) Vitodens Rigid and Flex Venting Systems Installation General Installation Information Installation steps (outline) Route vent pipe as directly as possible and with as few  bends as possible to the boiler. Exhaust vent pipe material Condensate must drain from the flue pipe to the boiler.

  • Page 56: Approved Material For Single Pipe Vent System

    Single Pipe Venting (Room Air Dependent) Vitodens Rigid and Flex Venting Systems Installation General Installation Information (continued) Approved materials for single pipe vent system Part Material Certified to Standards Applicability Exhaust pipe and fitting Stainless steel UL1738 U.S.A./Canada ”Venting systems for gas-burning appliances, Categories II, III, IV”...

  • Page 57: Additional Requirements For Stainless Steel Vent Pipe Material

    Single Pipe Venting (Room Air Dependent) Vitodens Rigid and Flex Venting Systems Installation General Installation Information (continued) Additional requirements for stainless steel vent pipe material Flexmaster Canada Ltd. ICC - Industrial Chimney Co. Use a special stainless steel venting system (UL/ULC www.novaflex.com www.icc-rsf.com listed for category IV) for horizontal or vertical venting of...
  • Page 58 Single Pipe Venting (Room Air Dependent) Vitodens Rigid and Flex Venting Systems Installation General Installation Information (continued) Additional requirements for stainless steel vent pipe material (continued) Exhaust vent termination options Supplier Boiler Model Stainless Steel Slip Vertical Termination Coupling Joint Starter Adaptor with Screen Flexmaster WB1B 26, 35, WB2B 19, 26, 35 3 in.
  • Page 59 The PP(s) increaser is required for the following boiler models. Supplier Boiler Model PP(s) increaser Quantity Viessmann WB1B 26, 35, WB2B 19, 26, 35 (60 to 80 mm) B2TA 19, 35, B2HA 19, 28, 35, B2TB 19, 35, B2HB 19, 26, 35...
  • Page 60 Single Pipe Venting (Room Air Dependent) Vitodens Rigid and Flex Venting Systems Installation General Installation Information (continued) Additional requirements for stainless steel vent pipe material (continued) Coaxial boiler vent pipe connection Legend A Combustion air intake B Flue gas Starter adaptor for WB2B 45, 60, 80, 105, B2HA 45, 60, 80, 88, 100, 112, 150 B2HB 45, 57 Flue...

  • Page 61: Additional Requirements For Cpvc Vent Pipe Material

    Use UL/ULC listed special plastic pipe (CPVC) for horizontal (side wall) or vertical (roof) venting of the Vitodens boilers. See table on page 62 and contact Viessmann to order. Prior to installation, check that the correct single-pipe vent parts have been ordered and supplied.
  • Page 62 Supplier Quantity CPVC WB1B 26, 35, WB2B 19, 26, 35, B2TA 19, 35, B2HA 19, 28, 35 2 in. Viessmann Starter Adaptor B2TB 19, 35, B2HB 19, 26, 35 2 in. WB2B 45, 60, B2HA 45, 60, B2HB 45, 57 3 in.

  • Page 63: Requirements For Ul/Ulc Listed Rigid Pp(S) Vent Pipe Material

    Always use latest edition of applicable standard. adhesives of any kind with this venting system. To ensure safe operation of the appliance, Viessmann The vent length requirements stated on page 81 in this recommends that the system be inspected once a year manual must be observed.

  • Page 64: Boiler Connections With Pp(S) System

    Single Pipe Venting (Room Air Dependent) Vitodens Rigid and Flex Venting Systems Installation Boiler Connections with PP(s) System Vent pipe starter adaptors This boiler adaptor is shown (pre-installed) for models for WB1B 26, 35, B2TA 19, 35, B2TB 19, 35 WB2B 45, 60, B2HA 45, 60, B2HB 45, 57 WB2B 19, 26, 35, B2HA 19, 28, 35, B2HB 19, 26, 35, PP(s) vent component fits directly into the boiler adaptor...

  • Page 65: Side Wall Vent Termination

    Single Pipe Venting (Room Air Dependent) Vitodens Rigid and Flex Venting Systems Installation Side Wall Vent Termination IMPORTANT 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 min 12 in.

  • Page 66: Vent Length Requirements

    Single Pipe Venting (Room Air Dependent) Vitodens Rigid and Flex Venting Systems Installation Vent Length Requirements Maximum vent pipe length - horizontal IMPORTANT All PP(s) vent material and air intake (if PP(s) used) must be ULC S636 or UL 1738 listed, manufactured by M&G / First elbow not included in equivalent vent calculation.

  • Page 67: Maximum Vent Pipe Length - Vertical

    Single Pipe Venting (Room Air Dependent) Vitodens Rigid and Flex Venting Systems Installation Vent Length Requirements (continued) Maximum vent pipe length - vertical IMPORTANT All PP(s) vent material and air intake (if PP(s) used) must be ULC S636 or UL 1738 listed, manufactured by M&G / For PP(s) systems, all exhaust vent and air intake piping DuraVent or Centrotherm InnoFlue.

  • Page 68: Component Installation Guide

    Single Pipe Venting (Room Air Dependent) Vitodens Rigid and Flex Venting Systems Installation Component Installation Guide General single-pipe vertical venting layout Legend 1 Coaxial vent pipe adaptor (comes pre-installed on Vitodens boilers) 2 Vent pipe starter adaptor (if required) 3 Elbow, 90° 4 Straight pipe* 5 Elbow, 45°...

  • Page 69: Single-Pipe Vent Starter Adaptor Installation

    Single Pipe Venting (Room Air Dependent) Vitodens Rigid and Flex Venting Systems Installation Component Installation Guide (continued) Single-pipe vent starter adaptor installation WARNING Prior to installation, ensure the specially designed single- pipe vent adaptor end is smooth and chamfered to prevent possible damage to the sealing gasket of the boiler vent pipe adaptor (coaxial).

  • Page 70: Equivalent Vent Length Calculation Example-Vertical

    Single Pipe Venting (Room Air Dependent) Vitodens Rigid and Flex Venting Systems Installation Component Installation Guide (continued) Equivalent vent length calculation example - vertical 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...

  • Page 71: Single-Pipe Vent Termination Installation

    Single Pipe Venting (Room Air Dependent) Vitodens Rigid and Flex Venting Systems Installation Component Installation Guide (continued) Single-pipe vent termination installation Install the vent termination coupling, along with the bird screen, for sloped or flat roof collars in accordance with the manufacturer’s instructions.

  • Page 72: Vent Termination Spacing

    Single Pipe Venting (Room Air Dependent) Vitodens Rigid and Flex Venting Systems Installation Vent Termination Spacing When terminating the vertical vent pipes of multiple Multiple boiler installations (vertical termination with Vitodens boilers, a minimum clearance of 4 inches multiple boilers) (100 mm) is required between the outside edges of each vent pipe.

  • Page 73: Installation Of Support System - Pp(S)

    (hanger).  roof brace.  In addition to the support types listed above Viessmann offers mounting clips which can be used in conjunction IMPORTANT with the above support types to support the weight of the venting system. Please contact Viessmann to order.

  • Page 74: General Flexible Pipe Installation

    General Information Vitodens Rigid and Flex Venting Systems Installation General Flex Venting Installation Exhaust vent installation steps The length of the flexible vent system can be determined  WARNING two ways: use a plumb line to measure the existing chimney length (add an extra 16 in. (40 cm) for each Ensure that the entire venting system is protected from bend).

  • Page 75: Recommended Venting Practice

    General Information Vitodens Rigid and Flex Venting Systems Installation General Flex Venting Installation (continued) Exhaust vent installation steps (continued) Recommended venting practice Once the bottom of the flex pipe and adaptor has  reached the desired position, insert into the support elbow/support strip assembly.

  • Page 76: Approved Materials For Two-Pipe System

    General Information Vitodens Rigid and Flex Venting Systems Installation General Flex Venting Installation (continued) Approved materials for two-pipe system Part Material Certified to Standards Applicability Exhaust rigid-pipe / PP(s) UL1738 U.S.A./Canada fittings and flexible Polypropelene “Venting systems for vent system gas-burning appliances, Stainless steel Categories II, III, IV”...

  • Page 77: Exhaust Vent Requirements

    Viessmann recommends that the entire vent system be to supply combustion air (a separate combustion air pipe checked by a licensed professional heating contractor at routed back to the boiler can be used in the remaining least once each year following initial installation.

  • Page 78: Combustion Air Supply

    Direct Venting (Two-pipe System) Vitodens Rigid and Flex Venting Systems Installation Combustion Air Supply The Vitodens boiler is suitable for vertical venting using Inspect all finished exhaust vent/air intake piping to ensure: rigid pipe and flexible pipe vent system material. The Vent/air intake pipe and fittings are of approved material.

  • Page 79: Starter Adaptor

    Direct Venting (Two-pipe System) Vitodens Rigid and Flex Venting Systems Installation Starter Adaptor Vent pipe starter adaptors for WB1B 26, 35, WB2B 19, 26, 35, B2HA 19, 28, 35, B2HB 19, 26, 35, B2TB 19, 35, B2TA 19, 35 Note: This adaptor A may not be required, contact vent manufacturer for available vent sizes.

  • Page 80: Parallel Adaptor

    80, 105 A Air intake, max. insertion 2b in. (64 mm) A Air intake, max. insertion 2b in. (64 mm) B Viessmann or Centrotherm parallel adaptor B Viessmann parallel adaptor C Used only on WB2B 80, 105, B2HA 80, 88, 100, C Slip joint vent starter / transition adaptor 4e to 4 in.

  • Page 81: Vent Requirements-Flex Vent System/Connector Pipes

    For air intake pipe system, one wire mesh screens (bird screen) must be ordered from Viessmann. These parts WARNING are available in pre-cut diameters of 2 in., 3 in. and 4 in. The use of vent material other than listed flexible PP(s), positive pressure vent pipe and fittings can cause property damage, severe personal injury and/or loss of life.

  • Page 82: Side Wall Air Intake Termination

    Direct Venting (Two-pipe System) Vitodens Rigid and Flex Venting Systems Installation Side Wall Air Intake Termination IMPORTANT Support Bracket The air intake system must terminate so that proper Attach clearances are maintained as cited in local codes or the Termination Side Wall latest edition of the “Natural Gas and Propane Installation Elbow w/Screen...

  • Page 83: Vent Length Requirements

    Direct Venting (Two-pipe System) Vitodens Rigid and Flex Venting Systems Installation Vent Length Requirements Maximum exhaust vent pipe length vertical and air intake pipe length vertical Vertical Vent Installation Vertical Vent Installation Vitodens 100-W WB1B 26, 35 Vitodens 200-W WB2B 45, 60, 80, 105 and Vitodens 200-W WB2B 19, 26, 35, B2HA 45, 60, 80, 88, 100, 112, 150, B2HB 45, 57 Vitodens 200-W B2HA 19, 28, 35...

  • Page 84: Maximum Exhaust Vent Pipe Length Vertical And Air Intake Pipe Length Horizontal

    Direct Venting (Two-pipe System) Vitodens Rigid and Flex Venting Systems Installation Vent Length Requirements (continued) Maximum exhaust vent pipe length vertical and air intake pipe length horizontal Vitodens 100-W WB2B 26, 35 and Vitodens Vitodens 200-W WB2B 45, 60, 80, 105, 200-W WB2B 19, 26, 35, B2HA 19, 28, 35, B2HA 45, 60, 80, 88, 100, 112, 150 B2HB 19, 26, 35 and Vitodens 222-F B2TA 19, 35,...

  • Page 85: Standard Long Sweep Elbows

    Direct Venting (Two-pipe System) Vitodens Rigid and Flex Venting Systems Installation Vent Length Requirements (continued) Standard long sweep elbows (for CPVC / PVC / ABS pipes air intake use only) 90° short sweep elbow For Plastic pipe only equivalent to 8 ft. (2.4 m) if used 90°...

  • Page 86: Combustion Air Supply

    Single Pipe Venting (Room Air Dependent) Vitodens Rigid and Flex Venting Systems Installation Combustion Air Supply The boiler used in this application requires fresh air for If boiler is installed in a confined space (a space with a safe operation and must be installed in a mechanical room volume of less than 50 cubic feet per 1000 Btu/h of gas where there are provisions for adequate combustion and input for all fuel burning equipment) or building layout...
  • Page 87 Single Pipe Venting (Room Air Dependent) Vitodens Rigid and Flex Venting Systems Installation Combustion Air Supply (continued) Inspect all finished exhaust vent/air intake piping to ensure: Vent pipe and fittings are of approved material.  Acceptable size, length and number of elbows on ...

  • Page 88: Adaptors

    Single Pipe Venting (Room Air Dependent) Vitodens Rigid and Flex Venting Systems Installation Adaptors Increaser / transition adaptors This boiler adaptor is shown installed This boiler adaptor is shown installed This boiler adaptor is shown (pre- with an increaser adaptor (if required with a required transition adaptor for installed) for models WB2B 45, 60, for 80 mm system) for models WB1B...

  • Page 89: Component Installation Guide

    Single Pipe Venting (Room Air Dependent) Vitodens Rigid and Flex Venting Systems Installation Component Installation Guide Single pipe vent pipe starter adaptor installation (if required) Installing single pipe vent increaser adaptor Vitodens Installing single pipe vent transition adaptor 4e to 4 in. (110 (if required) 100-W WB1B 26,35, 200-W WB2B 19, 26, to 100 mm) M&G / Duravent only Vitodens 200-W WB2B 35, 200-W B2HA 19, 28, 35, B2HB 19, 26, 35 and...

  • Page 90: General Component Parts Of The Flex Venting System

    Componentry Vitodens Rigid and Flex Venting Systems Installation General Component Parts of the Venting System Legend A Combustion air intake B Flue gas outlet 1 Boiler vent pipe adaptor 2 Double-pipe adaptor (used for direct vent system) 3 Adaptors 4 90 elbows 5 Combustion air intake vent material 6 Straight pipe...
  • Page 91 Vitodens Rigid and Flex Venting Systems Installation...
  • Page 92 Vitodens Rigid and Flex Venting Systems Installation...

This manual is also suitable for:

Vitodens 222-f b2ta/b2tb seriesVitodens 100-w wb1b seriesVitodens 200-w b2ha/b2hb series

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