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Viessmann VITODENSd 100-W Technical Data Manual

Wb1b series wall-mounted, gas-fired condensing boiler with optional on demand hot water combiplus kit 37 to 118 mbh & 10.8 to 34.5 kw
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Technical Data Manual
Model Nos. and pricing: see Price List
Vitodens 100-W
WB1B Series
Wall-Mounted, gas-fired condensing boiler
with optional on demand hot water CombiPLUS Kit
Heating input: 37 to 118 MBH
10.8 to 34.5 kW
VITODENS 100-W
Vitodens 100-W, WB1B
(with pre-installed coaxial vent pipe adaptor)
Gas-Fired Wall-Mounted Condensing Boiler with modulating
stainless steel MatriX cylinder burner, stainless steel Inox-
Radial heat exchanger for room air independent operation
(using a direct vent system) or room air dependent operation.
Optional CombiPLUS Kit providing reliable on demand hot
water without a DHW tank is available.
5601 189 v1.1 09/2011
CombiPLUS Kit

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Summary of Contents for Viessmann VITODENSd 100-W

  • Page 1 Technical Data Manual Model Nos. and pricing: see Price List Vitodens 100-W WB1B Series Wall-Mounted, gas-fired condensing boiler with optional on demand hot water CombiPLUS Kit Heating input: 37 to 118 MBH 10.8 to 34.5 kW VITODENS 100-W Vitodens 100-W, WB1B CombiPLUS Kit (with pre-installed coaxial vent pipe adaptor) Gas-Fired Wall-Mounted Condensing Boiler with modulating...

  • Page 2: Product Information

    General Vitodens 100-W, WB1B Technical Data Product Information Equipped with a Viessmann stainless steel heat exchanger Multiple venting options for lasting performance and reliability and a modulating - Horizontal or vertical sealed combustion MatriX cylinder gas burner, the Vitodens 100-W wall- coaxial, PP(s) vent system (Viessmann supplied).
  • Page 3 General Vitodens 100-W, WB1B Technical Data Product Information Boiler cross-section Legend A Stainless steel MatriX cylinder burner B Inox-Radial stainless steel heat exchanger C Burner blower D Gas and hydronic connections E Boiler control Standard Equipment: Wall-mount boiler and installation fittings c/w 30 psi pressure relief valve, pressure gage, gas shut-off valve, two fill/drain valves, all mounting hardware, outdoor temperature sensor, and LP conversion kit.

  • Page 4: Technical Data

    Technical Data Vitodens 100-W, WB1B Technical Data Specifications Standard heating boiler Boiler Model No. WB1B 26 WB1B 35 Natural gas and LPG 37-91 37-118 CSA input 10.8-26.7 10.8-34.6 34-83 34-108 CSA output/DOE 9.9-24.3 9.9-31.6 heating capacity Net I=B=R rating 10.23 10.23 Heat exchanger surface area 0.95...
  • Page 5 For detailed information refer to the Vitodens Venting System Installation Instructions. For 5,000 to 10,000 ft. (1,500 to 3,048 m) operation, a control programming change is required. Refer to the Installation and Service Instructions for details. For information regarding other Viessmann System Technology componentry, please reference documentation of respective product.
  • Page 6 Technical Data Vitodens 100-W, WB1B Technical Data Specifications (continued) CombiPLUS (Integrated with the Boiler) Boiler Model No. WB1B 26 WB1B 35 DHW supply temperature ºF (ºC) 140 (60) 140 (60) USG/h Continuous draw rate with DCW temp. of 56º F (13º C) USG/h Continuous draw rate at ∆...
  • Page 7 Dimensions Vitodens 100-W, WB1B Technical Data Boiler dimensions without bottom piping connections Front view Side view Top view Connections Vitodens 100-W, WB1B 26, 35 Legend Connections Dimensions See illustration for dimensions A Condensate drain, plastic hose Ø 0.87” (22 mm) 15¾”...
  • Page 8 Dimensions Vitodens 100-W, WB1B Technical Data Boiler dimensions with piping connections Piping connections for Vitodens 100-W, WB1B 26 and 35 (factory supplied) Legend Boiler water return, ¾” Boiler water supply, ¾” Boiler drain Boiler fill Gas connection, ¾” NPTM (male thread) Pressure relief valve Pressure gage Venting connection...
  • Page 9 Dimensions Vitodens 100-W, WB1B Technical Data CombiPLUS dimensions and piping connections CombiPLUS Connections Front view Side view with 7” Top view flex pipes Legend A Boiler water supply, NPTM ¾” (male thread) B Boiler water return, NPTM ¾” (male thread) C System water supply, NPTM ¾”...

  • Page 10: Combiplus Installation Options

    CombiPLUS installation options Min. distance between the boiler and CombiPLUS with Viessmann supplied 7” flex piping connection fittings. Shown is the maximum distance between the boiler Note: The maximum distance between and CombiPLUS using field supplied fittings and pipes.

  • Page 11: Heating Circuit Pumps

    A low-loss header offers additional benefits not provided by a pair of closely spaced tees. Viessmann strongly recommends and prefers the use of a low-loss header over closely spaced tees. Please see page 18 for details. Use standard friction loss method for pipe sizing.
  • Page 12 Operation Vitodens 100-W, WB1B Technical Data Heating circuit pumps (continued) CombiPLUS built-in pump Grundfos UPS15-78 three speed heating circuit/DHW production pump for Vitodens 100 WB1B 26, 35 boilers (in the factory setting, the pump speed is preset to ‘speed three’) Speed Three Speed Two Speed One...
  • Page 13 Operation Vitodens 100-W, WB1B Technical Data Heating circuit pumps (continued) DHW Production Planning Such factors are: With the CombiPLUS for instantaneous DHW heating DHW requirement, level of comfort and convenience or with DHW connections for DHW production via a stand-alone DHW storage tank, the Vitodens 100 boiler Number of draw points series offers the right solution for every need.
  • Page 14 Operation Vitodens 100-W, WB1B Technical Data Heating circuit pumps (continued) Domestic Hot Water Production via Instantaneous DHW Plate Heat Exchanger (CombiPLUS) The CombiPLUS is equipped with an electronically controlled instantaneous DHW plate heat exchanger. The comfort control function (if selected) ensures that the instantaneous DHW plate heat exchanger is kept warm. This translates into immediate availability of domestic hot water at any required temperature level.
  • Page 15 (a separate DHW controller should be field supplied). of the screws for the mounting bracket and the location All Viessmann DHW storage tanks sold in North America of the flue gas pipe on the wall (Viessmann coaxial PPS are available in “Vitosilver” finish only. vent system only).
  • Page 16 In some cases one granulate fill may last an entire year. Contact Viessmann to order a neutralization unit for the Vitodens 100-W boiler. See Viessmann Price List for order information.
  • Page 17 External heat demand 0-10 V (with open therm only) Viessmann outdoor temperature sensor (field wiring) Start-up and Maintenance Open Therm (field wiring) CombiPLUS instantaneous DHW control The control unit consists of:...
  • Page 18 BY Bypass Viessmann Temp. in this manual. (with laminar flow) Sensor (not used) Viessmann strongly recommends the use of a low-loss Debris and/or air SW Sensor Well header in cases where the system head and flow rates T1 Boiler supply temp.

  • Page 19: Standard Equipment

    Venting material (coaxial) or single pipe PP(s) is to be The MatriX cylinder burner, blower and the combination supplied by Viessmann only. Side wall vent installations gas valve are factory calibrated and pre-adjusted. A must include Viessmann protective screen! pneumatic link between combustion air and gas flows guarantees optimal boiler performance at all firing rates.

  • Page 20: System Layout 1

    Installation Vitodens 100-W, WB1B Technical Data System Layout 1 Vitodens 100-W, WB1B 26, 35 with one heating circuit Maximum Flow Rates (without optional CombiPLUS) Model WB1B ∆ t 83,000 108,000 Output Btu/h 30° F rise (GPM) 35° F rise (GPM) 40°...

  • Page 21: System Layout 2

    40° F rise (GPM) IMPORTANT DHW supply and return piping between boiler DHW connections and the Viessmann DHW tank connections, shall be a minimum of 1” nominal pipe diameter (irrespective of the ¾” DHW connection outlet sizes provided on the boiler and the DHW tank).

  • Page 22: System Layout 3

    40° F rise (GPM) IMPORTANT DHW supply and return piping between boiler DHW connections and the Viessmann DHW tank connections, shall be a minimum of 1” nominal pipe diameter (irrespective of the ¾” DHW connection outlet sizes provided on the boiler and the DHW tank).

  • Page 23: System Layout 4

    Installation Vitodens 100-W, WB1B Technical Data System Layout 4 Vitodens 100-W, WB1B 26, 35 with one heating circuit Maximum Flow Rates and the CombiPLUS Model WB1B ∆ t 83,000 108,000 Output Btu/h 30° F rise (GPM) 35° F rise (GPM) 40°...

  • Page 24: System Layout 5

    Installation Vitodens 100-W, WB1B Technical Data System Layout 5 Vitodens 100-W, WB1B 10-26, 10-35 with... Note: The use of a low-loss header is recommended if the CombiPLUS Kit water flow rate is less than 1.7 GPM (400 L/h) or low-loss header more than 6.2 GPM (1400 L/h).

  • Page 25: System Layout 6

    Closely spaced tees, 4x pipe Ø or 12” (305 mm)* Expansion tank * A low-loss header offers additional benefits not provided by a pair of closely spaced tees. Viessmann strongly recommends and prefers the use of a low-loss header over closely spaced tees. See page 18 for details.

  • Page 26: System Design Considerations

    Flue gas system Water connections Viessmann coaxial PPS (Polypropylene - flame retardant) Vitodens 100-W boilers can be used in any fully pumped concentric flue gas/fresh air systems and two-pipe hot water heating system. stainless steel/CPVC systems for room air independent Minimum system pressure is 0.8 bar (12 psig).
  • Page 27 Viessmann recommends the use of underfloor plastic the boiler other than that mentioned in the boiler tubing with an oxygen diffusion barrier. literature.

  • Page 28: Coaxial System

    Venting Vitodens 100-W, WB1B Technical Data Coaxial System Coaxial, horizontally vented, PP(s) (Viessmann supplied) Intake Vent system 60/100 80/125 100/150 Flue diameter (mm) Maximum Intake equivalent 82 (25) 98 (30) 118 (36) length ft. (m) Flue Intake Intake Coaxial, vertically vented, PP(s) (Viessmann supplied)

  • Page 29: Two Pipe System

    *stainless steel is not available in 2” Flue Combustion air: CPVC, PVC, ABS and stainless steel (field supplied) Flue gas: CPVC and stainless steel Intake (field supplied) PP(s): (Viessmann supplied) Flue Two pipe system (room air independent) vertically vented Vent system diameter (in) Maximum Intake...
  • Page 30 86 (20) 164 (50) 200 (61) length ft. (m) *stainless steel is not available in 2” CPVC and stainless steel (field supplied) PP(s) (Viessmann supplied) Flue Single pipe system (room air dependant) vertically vented Vent system diameter (in) Maximum equivalent...
  • Page 31 65 (20) 123 (37) 150 (46) length ft. (m) Combustion air: CPVC, PVC, ABS and stainless steel (field supplied) Flue gas: PP(s) (Viessmann supplied) Intake Flue Flexible single pipe system (room air dependant) Vent system diameter (in) Maximum equivalent...
  • Page 32 +140 +158 +176 +194 +100 +212 +110 +230 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 ·...

This manual is also suitable for:

Vitodens 100-wWb1b seriesWb1b 26Wb1b 35

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