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Viessmann Vitodens 200 WB2 Series Technical Data Manual

Gas-fired wall-mounted condensing boiler 25 to 230 mbh/7 to 67 kw multi-boiler installation 344 to 920 mbh/
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Download this manual See also: Service Manual, Instruction and Installation Manual
Model Nos. and pricing: see Price List
Vitodens 200, WB2-24C/24/32
Vitodens 200
WB2 Series
Gas-Fired Wall-Mounted Condensing Boiler
with modulating MatriX-compact gas burner
for room air independent operation
(using a direct vent system and room air
dependent operation)
For Natural Gas and Liquid Propane
Heating input NG
25 to 230 MBH
7 to 67 kW
Heating input LP
25 to 214 MBH
7 to 63 kW
5167 472 v3.2 11/2006
Gas-fired wall-mounted condensing boiler
25 to 230 MBH/7 to 67 kW
Multi-boiler installation 344 to 920 MBH/
Vitodens 200, WB2-44/60
(with preinstalled vent pipe adaptor)
VITODENS 200

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Summary of Contents for Viessmann Vitodens 200 WB2 Series

  • Page 1 VITODENS 200 Gas-fired wall-mounted condensing boiler 25 to 230 MBH/7 to 67 kW Multi-boiler installation 344 to 920 MBH/ Technical Data Manual Model Nos. and pricing: see Price List Vitodens 200, WB2-24C/24/32 Vitodens 200, WB2-44/60 (with preinstalled vent pipe adaptor) Vitodens 200 WB2 Series Gas-Fired Wall-Mounted Condensing Boiler...

  • Page 2: Product Information

    Product Information VITODENS 200 The Vitodens 200 is a high-quality HReliable DHW production two ways: condensing boiler made of stainless steel, - Combi model features an integrated developed in accordance with the latest DHW Quick System. No DHW tank achievements of the condensing boiler required.
  • Page 3 Product Information Cross-Section Fully modulating MatriX-compact gas burner – for extremely low emission levels Inox-Radial heat exchanger surfaces made of stainless steel – for increased operational reliability, a long service life and high heating output with minimum space requirements Integrated, weather-responsive, variable speed KM-BUS pump Instantaneous DHW stainless steel plate heat exchanger...
  • Page 4 Vitodens 200 Technical Data Combi Series Standard heating boiler Boiler Model Model No. WB2 6-24C WB2 6-24 WB2 8-32 WB2 11-44 WB2 15-60 Natural gas CSA input 25-91 25-91 37-124 55-172 80-230 7-27 7-27 11-36 16-50 23-67 CSA output/DOE 22-81 22-81 33-112 49-154...
  • Page 5 Do not attempt to common-vent Vitodens 200 with any other appliance. Venting material to be supplied by Viessmann only; side wall vent installation must include Viessmann protective screen! For details refer to the venting section starting on page 17 or the Installation Instructions for the Vitodens 200 Venting System.
  • Page 6 Vitodens 200 Vitodens 200 up to model WB2 8-32 6¼”/158 mm 10”/250 mm 5”/125 mm GC BR 16”/406 mm (Depth) 4¾“/120 mm “/187 mm 9¾”/250 mm 12¼”/314 mm 15”/380 mm 19¾”/500 mm (Width) Legend Only for Combi heating boiler Air Vent DCW Domestic Cold Water ½”...
  • Page 7 Vitodens 200/Technical Data Vitodens 200 model WB2 11-44 and up 8½”/215 mm 12”/300 mm Ø 6”/150 mm 3”/75 mm 2”/50 mm 21¼”/ “/187 mm 550 mm 11¾”/300 mm Legend Air Vent 16¼”/413 mm Boiler drain 20¾”/525 mm Boiler Return 23½”/600 mm (Width) Boiler Supply Boiler heating return for domestic hot water production 1¼”...

  • Page 8: Technical Data

    Observe boiler maximum and minimum flow rate limitations. If system flow rate exceeds boiler maximum flow rate (as stated on page 4) or if system flow rate is unknown, Viessmann strongly recommends the installation of a low-loss header. See page 34 for low-loss header information.

  • Page 9: Heating Circuit Pumps

    Pump factory default setting is 65% flow capacity (2000 rpm). Field supplied system heating circuit pumps for Vitodens 200 (all models) Viessmann offers a variety of prewired Grundfos system heating circuit pumps (see “Heating circuit pump (field supplied)” in the...
  • Page 10 (heating circuit pump, boiler pump and DHW pump field supplied) IMPORTANT Pump selection must be based on accurate system flow and pressure drop calculations (incl. DHW sizing). Viessmann offers a variety of prewired Grundfos circulating pumps which meet typical Vitodens system installation requirements.
  • Page 11 DHW Production Domestic Hot Water Production via Instantaneous DHW Plate Heat Exchanger (Model WB2 6-24C) The Vitodens 200 Combi boiler is equipped The comfort control function ensures that This translates into immediate availability of with an electronically controlled the instantaneous DHW plate heat domestic hot water at any required instantaneous DHW plate heat exchanger.
  • Page 12 DHW consumption of the storage tanks, see the Vitocell-V Technical storage tanks offered by Viessmann. building in question. Data Manuals. All Viessmann DHW storage tanks sold in North America are available in “Vitosilver” finish only. DHW Storage Tank Connection DHW Storage Tank Connection...
  • Page 13 DHW Recirculation DHW Recirculation DHW recirculation lines increase the level of Viessmann therefore recommends that comfort and convenience of the domestic effective insulation be provided and used for hot water supply and reduce water DHW recirculation lines of 23 ft./7 m in consumption.

  • Page 14: Wall Mounting

    Wall Mounting Wall Mounting Information (up to model WB2 8-32) Required accessories for installation without Additional requirements when connecting a DHW storage tank DHW storage tank Mounting bracket DHW Production Kit for DHW storage tank c/w mounting bolts and fittings connection DR/DCW DS/DHW...
  • Page 15 Wall Mounting Wall Mounting Information (model WB2 11-44 and up) The Vitodens 200 (model WB2 11-44 and The connection to the heating circuits up) comes with a template, which allows (installation fittings are supplied in the you to easily mark the location of the screws Installation Fittings package supplied with for the mounting bracket and the location of the boiler) must be made on site.

  • Page 16: Condensate Connection

    In some cases one granulate fill may last an entire year. Contact Viessmann to order a neutralization unit for the Vitodens 200 boiler. See Viessmann Price List for order information.
  • Page 17 See following page. Note: For extreme cold climate conditions (sustained temperatures below 0°F / -18°C) Viessmann offers a different vent termination option. CAUTION Under certain climatic conditions some building materials may be affected by flue products expelled in close proximity to unprotected surfaces.
  • Page 18 Venting Option Vent termination location requirements (for installations in Canada) The vent must be installed observing local 6..less than 1 ft./0.3 m above grade level 9..in areas where condensation may regulations in addition to National Codes, or anticipated snow level (consult local cause problems, such as above planters, CAN/CSA-B149.1 or 2.
  • Page 19 Venting Option Equivalent Vent Length H The maximum vent length on all models is 20 ft./6 m. H The minimum vent length on all models is 17”/425 mm (length of the vent termination when cut to the minimum permissible length). H Do not exceed the maximum vent length.
  • Page 20 Vitodens 200 Direct Vent System for details.) Roof flashing and storm collar (field supplied) Flue gas outlet Combustion air intake Note: For extreme cold climate conditions (sustained temperatures below 0°F / -18°C) Viessmann offers a different vent termination option. Standard vertical venting layout...
  • Page 21 Venting Option Vent termination location requirements 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.). See table below for the following two conditions. For sloped roof applications with distance b greater than 18”/450 mm For flat roof applications Model No.
  • Page 22 Venting Option Equivalent Vent Length Equivalent vent length Boiler model 6-24C 6-24 8-32 11-44 15-60 Maximum vent length 5” vent system ft./m 33/10 33/10 27/8 6” vent system ft./m 33/10 20/6 Minimum vent length 5” vent system ft./m 3.9/1.2 (all models) 6”...
  • Page 23 Venting Option Equivalent Vent Length (continued) Type of fitting Equivalent length 87º elbow/ 1.65 ft./0.5 m 87º inspection tee 45º elbow 1 ft./0.3 m Equivalent vent length calculation example 1 Vitodens 200, WB2 15-60 2 x 45º elbow 2 ft./0.6 m .
  • Page 24 Venting Option Single Wall Venting Option Please note that there is no basic vent kit available for this vertical vent system. See product literature supplied by manufacturer for available component parts. Coaxial vent pipe adaptor (comes pre-installed on model WB2-44/60) IMPORTANT For Vitodens 200, WB2 models 6-24C, 6-24 and 8-32, the vent pipe adaptor...
  • Page 25 Venting Option Vent termination location requirements 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.). See table below for the following two conditions. H For sloped roof applications with distance b greater than 18”/450 mm H For flat roof applications Model No.
  • Page 26 Venting Option 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 200 boiler is not designed to support the weight of the venting system.
  • Page 27 Venting Option Maximum/Minimum Vent Length Maximum vent length Boiler model 6-24C 6-24 8-32 11-44 15-60 a (max. length) 3” vent system ft./m 66/20 66/20 49/15 4” vent system ft./m 66/20 49/15 Minimum vent length Boiler model 6-24C 6-24 8-32 11-44 15-60 a (max.
  • Page 28 Venting Option Equivalent Vent Length Type of fitting Equivalent length 90º elbow 3 ft./0.9 m 45º elbow 2 ft./0.6 m Equivalent vent length calculation example Vitodens 200, WB2 15-60 2 x 90º elbow ....6 ft./1.8 m 2 x 45º...

  • Page 29: Electrical Connection

    Electrical Connection Electrical Connection Power Supply The Vitodens 200 is shipped with a Power Module (up to model WB2 8-32) or with a Power/Pump Module (model WB2 11-44 and up). Both modules require a 120 VAC power supply from a wall receptacle. The modules contain a 120/230 VAC step-up transformer to power the Vitodens 200 with 230 VAC.
  • Page 30 Control for Weather-Responsive Operation Control for Weather-Responsive Operation Built into the Vitodens 200 boiler is a menu-driven programming unit with... H day and week feature and four H freeze-up protection of entire heating programmable activation periods per day system for reduced operation, activation of DHW H integrated diagnostic system production or activation of the DHW H integrated DHW tank temperature control...
  • Page 31 Control for Weather-Responsive Operation Heating Curve Adjustment (slope and shift) Boiler Temperature Sensor Outdoor Temperature Sensor The boiler temperature sensor is connected The control unit regulates the boiler water at the control unit for weather-responsive temperature (= supply temperature of operation and is built into the boiler.
  • Page 32 The mixing valve actuator is mounted Installed with a strapping band. RS function: The remote control is mounted directly on the Viessmann ¾ to 2½“ mixing Cable length 19.7 ft./6 m, ready to plug in. on an inside wall of the main living area valve.
  • Page 33 Control for Weather-Responsive Operation Accessories Boiler Temperature Indication Unit, Remote Control WS Remote Control RS Part No. 7133 384 Part No. 7133 380 Part No. 7133 381 Must be inserted into the control unit for The remote control unit is used to set the The remote control unit is used to set the weather-responsive operation when the desired temperatures for normal operation...
  • Page 34 For maximum boiler flow rates, see table on Part No. 7134 209 page 8 in this manual. Viessmann strongly recommends the use of for Vitodens 200 model WB2 11-44 and up a low-loss header in cases where the Part No. 7134 211 system head and flow rates are unknown.
  • Page 35 IMPORTANT Model No. Max. system flow rate Type 80/50 17.6 GPM / 4 m Use only a Viessmann supplied temperature sensor. Do not use any other Type 120/80 35.2 GPM / 8 m manufacturer’s temperature sensor. Type 160/80 44 GPM / 10 m...

  • Page 36: Standard Equipment

    DHW heating. – Venting material (coaxial) is to be supplied by Viessmann only. Side wall vent installations must include Viessmann protective screen! – Enclosure finish: black steel, powder-coated white –...

  • Page 37: Installation Examples

    IMPORTANT If a DHW storage tank other than a The examples on the following pages depict Viessmann Vitocell 100 or 300 tank is possible piping layouts of the Vitodens 200 used, the installer must verify proper boiler equipped with Viessmann System operation of the Viessmann DHW tank Technology.
  • Page 38 Installation Examples System Layout 1 Vitodens 200 (model WB2 6-24C) with a direct-connected heating circuit Air vent DCW Domestic cold water DHW Domestic hot water PRV 1 PRV 1 Pressure relief valve (30 psig) PRV 2 Pressure relief valve (150 psig) Water softening equipment/filter Vitodens 200 gas-fired Combi boiler...
  • Page 39 In non-Viessmann DHW tank applications, perform, in addition to the above, accurate calculations for DHW tank coil pressure drop versus boiler pump residual head to ensure sufficient water flow to the boiler heat exchanger. Failure to heed the above instructions may cause...
  • Page 40 DHW supply and return piping between mixing valve (low temperature circuit) The circulation pump built into the Vitodens boiler DHW connections and the Viessmann H DHW production 200 boiler supplies the heating circuit up to DHW tank connections S , shall be a ...with the following flow conditions...
  • Page 41 DHW supply and return piping between H DHW production The circulation pump built into the Vitodens boiler DHW connections and the Viessmann ...with the following flow conditions 200 boiler supplies the heating circuit up to DHW tank connections S , shall be a 1.
  • Page 42 (see following table). DHW supply and return piping between installed on site which is controlled by the boiler DHW connections and the Viessmann accessory kit. Model No. Max. flow rate DHW tank connections...
  • Page 43 Installation Examples System Layout 6 Vitodens 200 (model WB2 11-44 and up) with... – DHW storage tank and – one direct-connected heating circuit Air vent PRV Pressure relief valve TPV Temperature and pressure relief valve Vitodens 200 gas-fired condensing boiler with programming unit for weather-responsive operation Outdoor temperature sensor of control unit for weather-responsive...
  • Page 44 10 of this manual, or better. WB2 11-44 15.4/3500 An undersized pump may cause WB2 15-60 15.4/3500 short-cycling and/or improper operation of the boiler. Viessmann STRONGLY recommends using a low-loss header and a boiler pump in system layout 7 (above).
  • Page 45 (field supplied). An recommended if the water flow rate is less expansion board (optional) must be ordered than 1.3 GPM / 300 ltr/h or more than 15.4 from Viessmann to control this pump. Pumps must pump into the GPM / 3500 ltr/h.
  • Page 46 See page 34 in this manual for details on be controlled by the Vitocontrol. the low-loss header. Contact your local Viessmann Technical Sales Representative for details. The DHW circulating pump is field supplied.
  • Page 47 Expansion tank Alternate locations Contact your local Sales Representative of expansion tank for details. IMPORTANT Pumps must pump into the When designing a system as illustrated above, please contact Vitodens 200 boiler (as illustrated). your local Viessmann Sales Representative for assistance.
  • Page 48 WARNING If a DHW storage tank other than a Viessmann Vitocell 100 or 300 tank is used, the installer must verify proper operation of the Viessmann DHW tank temperature sensor with the original manufacturer of the tank.

  • Page 49: System Design Considerations

    To minimize distribution losses, size and ventilation method of the room in oxygen diffusion barrier. Such systems must Viessmann recommends that the heating which it is located. have the non-oxygen diffusion barrier tubing and domestic hot water systems be based...
  • Page 52 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 Tel. (401) 732-0667 • Fax (401) 732-0590 Tel. (519) 885-6300 • Fax (519) 885-0887 www.viessmann-us.com •...

This manual is also suitable for:

Vitodens 200 wb2-24cVitodens 200 wb2-24Vitodens 200 wb2-32Vitodens 200 wb2-44Vitodens 200 wb2-60

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