Viessmann Vitodens 100-W WB1B Series Installation Instructions Manual
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Viessmann Vitodens 100-W WB1B Series Installation Instructions Manual

Rigid pipe venting systems
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Installation Instructions

for use by heating contractor
for Vitodens 100-W WB1B Series
and Vitodens 200-W WB2B Series
Rigid Pipe Venting Systems
5368 815 v3.4 05/2012
Vitodens 100-W, WB1B and
Vitodens 200-W WB2B Series
(with preinstalled coaxial vent pipe adaptor)
IMPORTANT
Read and save these instructions
for future reference.
Please file in service binder
1

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Summary of Contents for Viessmann Vitodens 100-W WB1B Series

  • Page 1: Installation Instructions

    Installation Instructions for use by heating contractor for Vitodens 100-W WB1B Series and Vitodens 200-W WB2B Series Rigid Pipe Venting Systems Vitodens 100-W, WB1B and Vitodens 200-W WB2B Series (with preinstalled coaxial vent pipe adaptor) IMPORTANT Read and save these instructions for future reference.

  • Page 2: Safety, Installation And Warranty Requirements

    Introduction Rigid Venting Systems Installation Instructions 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 Rigid Venting Systems Installation Instructions Page Safety Safety, Installation and Warranty Requirements....2 How these Installation Instructions are structured..9 Important Regulatory and Installation Requirements..7 Operation with balanced flue using coaxial vent system..............8 Clearance to combustibles.........9 Recommended minimum service clearance....9 For coaxial venting systems only........9 General Information About These Installation Instructions......10...
  • Page 4 Table of Contents Rigid Venting Systems Installation Instructions Page Vent Length Requirements.........28 Maximum vent length..........28 Maximum vent length with increasers......29 Minimum vent length for vertical installations...29 Equivalent vent length calculation examples....30 Standard sizes of boiler flue gas vent adaptors..30 Direct Venting (Two-pipe System) Component Parts of the Venting System......31 Horizontal vent termination........31 Protective screen...........31...
  • Page 5 Table of Contents Rigid Venting Systems Installation Instructions Page Requirements for UL/ULC Listed Rigid PP(s) Vent Pipe Material.............45 Vent and Air Intake Pipe Starter Adaptors - CPVC..46 Vent and Air Intake Pipe Starter Adaptors - PP(s)..48 Parallel adaptor for two-pipe system......49 Side Wall Vent Termination - Stainless Steel, CPVC or PP(s)............50 Vent Length Requirements.........51...
  • Page 6 Table of Contents Rigid Venting Systems Installation Instructions Page Exhaust vent termination options......70 Other exhaust vent termination options (horizontal)..70 Coaxial increaser............71 Component parts of the venting system - stainless steel............72 Additional requirements for CPVC vent pipe material..73 Exhaust vent connection to boiler......73 Approved vent pipe material........73 Required starter adaptors and mesh screen for CPVC system...........73...

  • Page 7: Important Regulatory And Installation Requirements

    Safety Rigid Venting Systems Installation Instructions 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 Balanced Flue Using Coaxial Vent System

    Please read and follow these instructions carefully. mounted gas-fired boiler during system start-up. It is the responsibility of the installer to contact local In cases where the leak test is not required, Viessmann building and fire officials concerning any installation recommends that the heating contractor perform restrictions and/or inspection requirements that may apply.

  • Page 9: How These Installation Instructions Are Structured

    Safety Rigid Venting Systems Installation Instructions Important Regulatory and Installation Requirements (continued) Table 1. 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) Table 2.

  • Page 10: About These Installation Instructions

    General Information Rigid Venting Systems Installation Instructions 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 11: General Installation Information

    Viessmann Venting System Instructions above. Therefore, it is imperative that boilers installed supersede the instructions supplied by the manufacturer.

  • Page 12: Recommended Venting Practice

    Leak test (for coaxial venting systems only) If higher CO values or lower O values are measured, Viessmann recommends that the heating contractor perform inspect the venting system thoroughly. a simplified leak test during boiler start-up. For this purpose it is sufficient to measure the CO...

  • Page 13: Boiler Vent Connections

    General Information Rigid Venting Systems Installation Instructions General Installation Information (continued) Boiler vent connections Boiler models Vitodens 100-W WB1B 26, 35 and Vitodens 200-W WB2B 19, 26, 35 For double-pipe installations the combustion Remove and discard combustion air inlet cover air inlet cover must be in place.

  • Page 14: Side Wall Venting Layouts (Coaxial)

    Side Wall Vent Installation (Coaxial) Rigid Venting Systems Installation Instructions Side Wall Venting Layouts (Coaxial) Layout with basic coaxial vent componentry For 80, 105 models only Transition 110/150 > 100/150 M&G Duravent Transition 110/150 > 110/160 Centrotherm Max. wall thickness 19.6 in.
  • Page 15 Side Wall Vent Installation (Coaxial) Rigid Venting Systems Installation Instructions Side Wall Venting Layouts (Coaxial) (continued) Layout with basic coaxial vent componentry (continued) Anchoring system Transition adaptor used only for 80 and 105 models Fig. 5 Side wall venting layout...
  • Page 16 Side Wall Vent Installation (Coaxial) Rigid Venting Systems Installation Instructions 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 Fig.

  • Page 17: Component Installation Guide

    Side Wall Vent Installation (Coaxial) Rigid Venting Systems Installation Instructions Component Installation Guide Coaxial vent termination installation Fig. 7 Coaxial vent termination Table 4. Wall opening information Vent system Opening Ø Legend 60/100 4a in. (108 mm) 1 Vent termination 2 Wall flashing (inside) 80/125 5a in.

  • Page 18: Protective Screen

    Side Wall Vent Installation (Coaxial) Rigid Venting Systems Installation Instructions Component Installation Guide (continued) Coaxial vent termination installation 6. Secure protective screen 6 (fig. 10) into place, using the four stainless steel screws and plugs provided. IMPORTANT The protective screen MUST be installed. 7.

  • Page 19: Vent Termination Location Requirements

    Side Wall Vent Installation (Coaxial) Rigid Venting Systems Installation Instructions Component Installation Guide (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 20: Installation Of Anchoring System

    Side Wall Vent Installation (Coaxial) Rigid Venting Systems Installation Instructions Installation of Anchoring System Fig. 11 The venting system must be securely supported Fig. 12 If a longer anchoring system is required use by an anchoring system A suitable for the all-threaded rods B (field supplied).

  • Page 21: Vent Length Requirements

    Side Wall Vent Installation (Coaxial) Rigid Venting Systems Installation Instructions Vent Length Requirements Maximum vent length Table 5. Standard sizes of boiler flue gas adaptors Boiler model Adaptor size WB1B 26, WB1B 35 60/100 WB2B 19, WB2B 26, WB2B 35 60/100 WB2B 45, WB2B 60 80/125...

  • Page 22: Maximum Vent Length With Increasers

    Vertical Vent Installation (Coaxial) Rigid Venting Systems Installation Instructions Vent Length Requirements (continued) Maximum vent length with increasers Vent length “a” Coaxial increaser for systems 60/100 to 100/150, 60/100 to 80/125 and 80/125 to 100/150 or 110/160 Vitodens 100-W, WB1B and Vitodens 200-W, WB2B Fig.

  • Page 23: Vertical Venting Layouts (Coaxial)

    Side Wall Vent Installation (Coaxial) Rigid Venting Systems Installation Instructions 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, page 28. Legend 1 Vent pipe adaptor 2 Elbow, 87°...

  • Page 24: General Installation Examples

    Vertical Vent Installation (Coaxial) Rigid Venting Systems Installation Instructions Vertical Venting Layouts (Coaxial) (continued) General installation examples Fig. 19 Sloped roof installation Fig. 17 Sloped roof installation Fig. 18 Flat roof installation with offset IMPORTANT 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.

  • Page 25: Component Installation Guide

    Vertical Vent Installation (Coaxial) Rigid Venting Systems Installation Instructions Component Installation Guide Coaxial vent termination installation Table 8 Ceiling opening information Vent system Opening Ø 60/100 4a in. (108 mm) 80/125 5a in. (133 mm) 100/150 M&G 6e in. (160 mm) 110/160 InnoFlue 6.5 in.

  • Page 26: Vent Termination Location Requirements

    Vertical Vent Installation (Coaxial) Rigid Venting Systems Installation Instructions Component Installation Guide (continued) Flashing and storm collar installation Flashings and storm collars are field supplied. Flashings 1 ft. (0.3 m) and storm collars suitable for Type B vent materials (or better) may be used. To obtain flashings and storm collars, please contact your local vent material supplier.

  • Page 27: Installation Of Support System

    (hanger). In addition to the support types listed above Viessmann offers mounting clips (see C fig. 24 and fig. 25) 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 28: Vent Length Requirements

    Vertical Vent Installation (Coaxial) Rigid Venting Systems Installation Instructions Vent Length Requirements Maximum vent length Table 10 Boiler model a (max. WB1B 26, 35 WB2B 19, 26 WB2B 35 WB2B 45 WB2B 60 WB2B 80, length) 60/100 vent ft. (m) 82 (25) 30 (9) 23 (7)

  • Page 29: Maximum Vent Length With Increasers

    Vertical Vent Installation (Coaxial) Rigid Venting Systems Installation Instructions Vent Length Requirements (continued) Maximum vent length with increasers Table 11 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 30: Equivalent Vent Length Calculation Examples

    Componentry Rigid Venting Systems Installation Instructions Vent Length Requirements (continued) Equivalent vent length calculation examples Table 13 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. Equivalent vent length calculation example: Vitodens 100-W, WB1B 35 and Vitodens 200-W, WB2B 35 (vent system 60/100) (Fig.

  • Page 31: Component Parts Of The Venting System

    Rigid Venting Systems Installation Instructions Component Parts of the Venting System Horizontal vent termination front view, not to scale Protective screen (Viessmann supply) for side wall venting installations only Dimensions a 12 in. (405 mm) b 9.5 in. (241 mm)

  • Page 32: Vertical Vent Termination

    Direct Venting (Two-pipe System) Rigid Venting Systems Installation Instructions Component Parts of the Venting System (continued) Vertical vent termination Dimensions vent system Boiler model in. (mm) in. (mm) WB1B 26,35 2.4 (60) 4 (100) WB2B 19, 26, 35 WB2B 45, 60 3 (80) 5 (125) WB2B 80, 105...

  • Page 33: Direct Venting Options (Two-Pipe System)

    Componentry Rigid Venting Systems Installation Instructions Direct Venting Options (Two-pipe System) As opposed to coaxial venting systems, the two-pipe Boiler models Vitodens 100-W WB1B 26, 35 and venting system draws combustion air A through a Vitodens 200-W WB2B 19, 26, 35 separate air intake pipe from the outdoors.

  • Page 34: Exhaust Vent/Air Intake Requirements

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

  • Page 35: General Requirements

    Rigid Venting Systems Installation Instructions Exhaust Vent/Air Intake Requirements (continued) General requirements Viessmann recommends that the entire vent system be checked by a licensed professional heating contractor at The Vitodens 100-W and 200-W boilers must be located least once each year following initial installation.

  • Page 36: General Installation Information

    Direct Venting (Two-pipe System) Rigid Venting Systems Installation Instructions General Installation Information Route vent pipe as directly as possible and with as few Installation steps (outline) bends as possible to the boiler. Exhaust and combustion air piping material Condensate must drain from the flue pipe to the boiler. Use only the materials listed in table 16 entitled “Approved Ensure a suitable gradient of at least 3º...

  • Page 37: Approved Materials For Two-Pipe System

    Direct Venting (Two-pipe System) Rigid Venting Systems Installation Instructions General Installation Information (continued) Table 16. 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 38: Vent Termination Location Requirements

    Direct Venting (Two-pipe System) Rigid Venting Systems Installation Instructions General Installation Information (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 39: Vent Requirements - Stainless Steel

    CPVC starter adaptor for use on air intake connection to parallel adaptor must be Security Chimneys International Ltd. ordered from Viessmann (see table 22). 2125 Rue Monterey The bird screen for the air intake termination elbow must Laval, QC also be ordered from Viessmann.

  • Page 40: Increaser

    (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 17 for part number). Minimum pipe diameter available for exhaust stainless steel pipe is 3 in.

  • Page 41: Parallel Adaptor For Two-Pipe System

    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 42: Exhaust Vent Termination Options (Vertical Installation)

    Direct Venting (Two-pipe System) Rigid Venting Systems Installation Instructions Vent Requirements - Stainless Steel (continued) Additional requirements for stainless steel vent pipe material (continued) Table 19. Exhaust vent termination options (vertical installation) Supplier Boiler Model Stainless Steel Slip Vertical Termination Coupling with Screen (see fig.

  • Page 43: Component Parts Of The Venting System - Stainless Steel

    Direct Venting (Two-pipe System) Rigid Venting Systems Installation Instructions Component Parts of the Venting System - Stainless Steel Fig. 36 Termination Coupling with Screen Fig. 37 Termination Elbow with Screen 90° or 45° Fig. 38 Termination Tee with Screen Fig. 39 Termination Hood with Screen...

  • Page 44: Vent Requirements - Cpvc

    Vitodens boilers. single pipe special venting system (CPVC material). See table 22 below and contact Viessmann to order The zero inches vent clearance to combustibles special parts. for the Vitodens boiler supersedes the clearance to...

  • Page 45: Requirements For Ul/Ulc Listed Rigid Pp(S) Vent Pipe Material

    National Fuel Gas Code ANSI Z223.1 or NFPA Standard 54. Z21.13 - 2010 Standard. To ensure safe operation of the appliance, Viessmann The venting system components are tested and listed to recommends that the system be inspected once a year by ULC S636 or UL 1738 by Intertek and are marked and a qualified service technician.

  • Page 46: Vent And Air Intake Pipe Starter Adaptors - Cpvc

    Direct Venting (Two-pipe System) Rigid Venting Systems Installation Instructions Vent and Air Intake Pipe Starter Adaptors - CPVC WARNING Vent pipe starter adaptors for WB1B 26, 35 / WB2B 19, 26, 35 (For this type of installation only:) Boiler comes with pre-installed combustion air cover mounted on the concentric vent pipe adaptor.
  • Page 47 Legend A Air intake, max. insertion 2½ in. (64 mm) A Air intake, max. insertion 2½ in. (64 mm) B Viessmann parallel adaptor B Viessmann parallel adaptor C CPVC slip joint starter adaptor 80 mm to 3 in. C CPVC slip joint starter adaptor 110 mm to 4 in.

  • Page 48: Vent And Air Intake Pipe Starter Adaptors - Pp(S)

    Direct Venting (Two-pipe System) Rigid Venting Systems Installation Instructions Vent and Air Intake Pipe Starter Adaptors - PP(s) Vent pipe starter adaptors for WB1B 26, 35 / WB2B 19, 26, 35 Vent starter adaptor is not required if using PP(s) system. Air intake cover must stay in place.

  • Page 49: Parallel Adaptor For Two-Pipe System

    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 50: Side Wall Vent Termination - Stainless Steel, Cpvc Or Pp(S)

    Direct Venting (Two-pipe System) Rigid Venting Systems Installation Instructions Side Wall Vent Termination - Stainless Steel, CPVC or PP(s) If less than 10 in. IMPORTANT required (see D in fig. 48) 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 51: Vent Length Requirements

    Direct Venting (Two-pipe System) Rigid Venting Systems Installation Instructions 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 52: Maximum Vent/Air Intake Pipe Length - Vertical

    Direct Venting (Two-pipe System) Rigid Venting Systems Installation Instructions 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 Fig.
  • Page 53 Direct Venting (Two-pipe System) Rigid Venting Systems Installation Instructions 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 54: Multiple Boiler Installations (Vertical Termination With Multiple Boilers)

    Direct Venting (Two-pipe System) Rigid Venting Systems Installation Instructions Vent Length Requirements (continued) When terminating the vent pipes of multiple Vitodens Multiple boiler installations (vertical termination with boilers, a minimum clearance of 4 inches (100 mm) is multiple boilers) required between the outside edges of each vent pipe. 6 in.

  • Page 55: Maximum Vent/Air Intake Pipe Length - Horizontal/Vertical (Hybrid System)

    Direct Venting (Two-pipe System) Rigid Venting Systems Installation Instructions Vent Length Requirements (continued) Maximum vent/air intake pipe length - horizontal/vertical (hybrid system) The total equivalent length specified for a two pipe system All PP(s) vent material and air intake (if PP(s) used) must is the total combined length of the exhaust vent and air be ULC S636 or UL1738 listed, manufactured by M&G intake pipe system.

  • Page 56: Standard Long Sweep Elbows (For Cpvc Pipe Only)

    Direct Venting (Two-pipe System) Rigid Venting Systems Installation Instructions 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 57: Equivalent Vent Length Calculation Example - Stainless Steel System With Plastic Air Intake Pipe

    Direct Venting (Two-pipe System) Rigid Venting Systems Installation Instructions Vent Length Requirements (continued) Equivalent vent length calculation example - stainless steel system with plastic air intake pipe Table 28 Vent type Type of fitting Equivalent length ft. (m) Exhaust vent pipe 90°...

  • Page 58: Equivalent Vent Length Calculation Example - Cpvc System

    Direct Venting (Two-pipe System) Rigid Venting Systems Installation Instructions Vent Length Requirements (continued) Equivalent vent length calculation example - CPVC system Table 29 Type of fitting Equivalent length ft. (m) 90° long sweep elbow (CPVC) 5 (1.52) 45° long sweep elbow (CPVC) 3 (0.91) Equivalent vent length calculation example (Vitodens WB1B system diameter 2 in.)

  • Page 59: Flashing And Storm Collar Installation

    Direct Venting (Two-pipe System) Rigid Venting Systems Installation Instructions Vent Length Requirements (continued) Equivalent vent length calculation example - CPVC system (continued) Side wall Caulk here Exhaust/Air intake Exterior caulking pipe and fittings field supplied Flue Starter adaptor Parallel adaptor Boiler adaptor Fig.

  • Page 60: Component Parts Of The Pp(S) Venting System

    Componentry Rigid Venting Systems Installation Instructions 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 105 only with M&G system).
  • Page 61 Componentry Rigid Venting Systems Installation Instructions 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 2 Double pipe adaptor 3 Air intake adaptor (PVC, CPVC, ABS) 4 PP(s) adaptor (WB2B 105 only with M&G system).

  • Page 62: Venting - Single Pipe (Room Air Dependent)

    Single Pipe Venting (Room Air Dependent) Rigid Venting Systems Installation Instructions Venting - Single Pipe (Room Air Dependent) 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 (WB2B 45, 60, 80,105 models) or optional opening to the left or right C (WB1B 26, 35, WB2B 19, 26, 35 models).

  • Page 63: Vent Requirements

    Single Pipe Venting (Room Air Dependent) Rigid Venting Systems Installation Instructions 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 64: General Installation Information

    Condensate must drain from the flue pipe to the boiler. Viessmann recommends that the entire vent system be Ensure a suitable gradient of at least 3º [approx. 2 in. per checked by a licensed professional heating contractor at 3.3 ft.

  • Page 65: Installation Steps (Outline)

    Single Pipe Venting (Room Air Dependent) Rigid Venting Systems Installation Instructions General Installation Information (continued) Route vent pipe as directly as possible and with as few Installation steps (outline) bends as possible to the boiler. Exhaust vent pipe material Condensate must drain from the flue pipe to the boiler. Use only the materials listed in table 30 for exhaust vent Ensure a suitable gradient of at least 3º...

  • Page 66: Approved Material For Single Pipe Vent System

    Single Pipe Venting (Room Air Dependent) Rigid Venting Systems Installation Instructions General Installation Information (continued) Approved materials for single pipe vent system Table 30 Approved materials for single pipe vent system Part Material Certified to Standards Applicability Exhaust pipe and fitting Stainless steel UL1738 U.S.A./Canada...

  • Page 67: (For Installations In Canada)

    Single Pipe Venting (Room Air Dependent) Rigid Venting Systems Installation Instructions General Installation Information (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 68: Support System

    Single Pipe Venting (Room Air Dependent) Rigid Venting Systems Installation Instructions General Installation Information (continued) Support system Flashing and storm collar installation Flashings and storm collars are field supplied. Flashings The venting system must be securely supported by a support system suitable for the weight and design of the and storm collars suitable for Type B vent materials (or materials employed.

  • Page 69: Additional Requirements For Stainless Steel Vent Pipe Material

    Single Pipe Venting (Room Air Dependent) Rigid Venting Systems Installation Instructions General Installation Information (continued) Flexmaster Canada Ltd. Additional requirements for stainless steel vent pipe material 452 Attwell Drive Use a special stainless steel venting system (UL/ULC Etobicoke, ON listed for category IV) for horizontal or vertical venting of M9W 5C3 the Vitodens boilers.

  • Page 70: Exhaust Vent Termination Options

    Single Pipe Venting (Room Air Dependent) Rigid Venting Systems Installation Instructions General Installation Information (continued) Additional requirements for stainless steel vent pipe material (continued) Table 31 Exhaust vent termination options Supplier Boiler Model Stainless Steel Slip Vertical Termination Coupling with Screen (see fig.

  • Page 71: Coaxial Increaser

    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) Part # 7440183 Remove and discard cover B if used in addition to annular air gap Fig.

  • Page 72: Component Parts Of The Venting System - Stainless Steel

    Single Pipe Venting (Room Air Dependent) Rigid Venting Systems Installation Instructions General Installation Information (continued) Additional requirements for stainless steel vent pipe material (continued) Flue Starter adaptor for WB2B 45, 60, 80, 105 Combustion a 6.5 in (165 mm) Fig. 69 Legend A Boiler adaptor B Stainless steel starter adaptor [max.

  • Page 73: Additional Requirements For Cpvc Vent Pipe Material

    (side wall) or vertical (roof) venting of the Vitodens boilers. CSA 4.9.2010 and therefore is listed for zero See table 34 below and contact Viessmann to order. clearance to combustibles when vented with a single pipe special venting system (CPVC material).

  • Page 74: Requirements For Ul/Ulc Listed Rigid Pp(S) Vent Pipe Material

    Installation Code as applicable; in the U.S. use the National labelled on each component. Fuel Gas Code ANSI Z223.1 or NFPA Standard 54. To ensure safe operation of the appliance, Viessmann recommends that the system be inspected once a year by a qualified service technician.

  • Page 75: Boiler Connections With Pps System

    Single Pipe Venting (Room Air Dependent) Rigid Venting Systems Installation Instructions Boiler Connections With PPs System Vent pipe starter adaptors for WB1B 26, 35, WB2B 19, 26, 35 and WB2B 80, 105 This boiler adaptor is shown (pre-installed) for models This boiler adaptor is shown (pre-installed) for models WB2B 45, 60 WB1B 26, 35 and WB2B 19, 26, 35...

  • Page 76: Side Wall Vent Termination

    Single Pipe Venting (Room Air Dependent) Rigid Venting Systems Installation Instructions 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 77: Vent Length Requirements

    Single Pipe Venting (Room Air Dependent) Rigid Venting Systems Installation Instructions 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 78: Maximum Vent Pipe Length - Vertical

    Single Pipe Venting (Room Air Dependent) Rigid Venting Systems Installation Instructions 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 (Muelink &...

  • Page 79: Standard Long Sweep Elbows (For Cpvc Pipes Only)

    Single Pipe Venting (Room Air Dependent) Rigid Venting Systems Installation Instructions Vent Length Requirements (continued) Standard long sweep elbows (for CPVC pipes only) 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) Fig.

  • Page 80: Component Installation Guide

    Single Pipe Venting (Room Air Dependent) Rigid Venting Systems Installation Instructions 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 81: Single-Pipe Vent Starter Adaptor Installation

    Single Pipe Venting (Room Air Dependent) Rigid Venting Systems Installation Instructions 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 82: Flashing And Storm Collar Installation

    Single Pipe Venting (Room Air Dependent) Rigid Venting Systems Installation Instructions Component Installation Guide (continued) 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 local vent material supplier.

  • Page 83: Multiple Boiler Installations

    Single Pipe Venting (Room Air Dependent) Rigid Venting Systems Installation Instructions Component Installation Guide (continued) Multiple boiler installations (Vertical termination with When terminating the vent pipes of multiple Vitodens multiple boilers) boilers, a minimum clearance of 4 inches (100 mm) is required between the outside edges of each vent pipe.

  • Page 84: Single-Pipe Vent Termination Installation

    Single Pipe Venting (Room Air Dependent) Rigid Venting Systems Installation Instructions 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. General installation examples - vertical Fig.

  • Page 85: Equivalent Vent Length Calculation Example - Vertical

    Single Pipe Venting (Room Air Dependent) Rigid Venting Systems Installation Instructions Component Installation Guide (continued) Equivalent vent length calculation example - vertical Equivalent vent length calculation example (stainless steel system) Vitodens 100-W, WB1B 26, 35 2 x 90º elbow...........6 ft. (1.8 m) 2 x 45º...

  • Page 86: Installation Of Support System - Pp(S)

    (hanger). roof brace. In addition to the support types listed above Viessmann offers mounting clips (see C fig. 96) which can be IMPORTANT used in conjunction with the above support types to support the weight of the venting system. Please contact Ensure that the venting system is properly supported;...

  • Page 87: Two Pipe Options Wb1B 26/35, Wb2B 19/26/35

    Field Air intake increaser (if required) (2 in. to 3 in. or 4 in.) Field Air intake adaptor (if required) (60 mm to 2 in.) Viessmann Boiler coaxial adaptor (60 mm / 100 mm) C/W Boiler Air intake connection C/W Boiler...

  • Page 88: Single Pipe Options Wb1B 26/35, Wb2B 19/26/35

    Field Vent increaser (if required) (2 in. to 3 in. or 4 in.) Field Vent starter adaptor (CPVC), (60 mm to 2 in.) Viessmann Boiler coaxial adaptor (60 mm / 100 mm) C/W Boiler Stainless Steel Vent pipe Stainless Steel Vent pipe...

  • Page 89: Two Pipe Options Wb2B 45/60 (Direct Vent)

    Air intake component Field Air intake increaser (if required) (80 mm to 100 mm) Field Double pipe adaptor (80 mm/125 mm to 80 mm and 80 mm) Viessmann Boiler coaxial adaptor (80 mm / 125 mm) C/W Boiler PP(s) Vent pipe...

  • Page 90: Single Pipe Options Wb2B 45/60

    Vent Component Field Vent increaser (if required) (3 in. to 4 in.) Field Vent adaptor, (80 mm to 3 in.) Viessmann Combustion air inlet (location) Boiler coaxial adaptor (80 mm / 125 mm) C/W Boiler Stainless Steel Vent pipe Stainless Steel Vent pipe...

  • Page 91: Two Pipe Options Wb2B 80/105 (Direct Vent)

    Field Air intake starter adaptor, (110 mm to 100) Field Double pipe adaptor (110 mm/150 mm to 110 mm and 110 mm) Viessmann Boiler coaxial adaptor (110 mm / 150 mm) C/W Boiler * with M&G / Duravent system only.

  • Page 92: Single Pipe Options Wb2B 80/105 (Room Air Dependent)

    CPVC Vent pipe Component Supplied Vent Component Field Vent starter adaptor (110 mm to 4 in.) Viessmann Combustion air inlet (location) Boiler coaxial adaptor (110 mm / 150 mm) C/W Boiler Stainless Steel Vent pipe Stainless Steel Vent pipe Component...

  • Page 93: Coaxial Vent System Options (Direct Vent)

    Componentry (System Options) Rigid Venting Systems Installation Instructions Coaxial Vent System Options (Direct Vent) 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). WB1B 26/35 WB2B 19/26/35 WB1B 26/35 WB2B 19/26/35 Component Supplied...
  • Page 94 Rigid Venting Systems Installation Instructions...
  • Page 95 Rigid Venting Systems Installation Instructions...
  • Page 96 Rigid Venting Systems Installation Instructions Viessmann Manufacturing Company (U.S.) Inc. Viessmann Manufacturing Company Inc. 45 Access Road 750 McMurray Road Warwick, Rhode Island · 02886 · USA Waterloo, Ontario · N2V 2G5 · Canada 1-800-288-0667 · Fax (401) 732-0590 1-800-387-7373 · Fax (519) 885-0887 www.viessmann-us.com ·...

This manual is also suitable for:

Vitodens 200-w wb2b series

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