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Technical Data 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)
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 v2.0 11/2002
Gas-fired wall-mounted condensing boiler
25 to 230 MBH/7 to 67 kW
Vitodens 200, WB2-44/60
(with preinstalled vent pipe adaptor)
VITODENS 200
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Summary of Contents for Viessmann Vitodens 200 WB2 6-24C
- Page 1 VITODENS 200 Gas-fired wall-mounted condensing boiler 25 to 230 MBH/7 to 67 kW 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 with modulating MatriX-compact gas burner for room air independent operation (using a direct vent system)
- Page 2 Product Information VITODENS 200 The Vitodens 200 is a high-quality H Low electrical power consumption due to condensing boiler made of stainless steel, variable speed DC blower and variable developed in accordance with the latest speed heating circuit pump (variable speed achievements of the condensing boiler pump available on some models only).
- 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 22-81 22-81 33-112 49-153 71-205 CSA output/DOE...
- 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 more details refer to the venting section in this manual starting on page 17 and/or the Installation Instructions for the Vitodens 200 Direct Vent 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 540 mm (Depth) Legend 11¾”/300 mm Air Vent 16¼”/413 mm Boiler Drain 20¾”/525 mm Boiler Return Boiler Supply 23½”/600 mm (Width) Boiler heating return for domestic...
- Page 8 Observe boiler maximum 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 29 for low-loss header information.
- Page 9 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 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 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 Venting Option Side Wall Venting Option Vent pipe adaptor Elbow, 87° (1 per carton) Straight pipe 3.3 ft./1 m long Vent termination (incl. wall flashings) Important! Total length of vent termination pipe is 29”/730 mm. If required, the vent termination pipe may be shortened by max.
- 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 Venting Option Vertical Venting Option Vent pipe adaptor Vent inspection tee/ Elbow, 87° (1 per carton) Sliding coupling Straight pipe 3.3 ft./1 m or 1.65 ft./0.5 m Elbow, 87° (1 per carton) Elbow, 45° (2 per carton) Vent termination Important! Never shorten vertical vent termination.
- 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. H For sloped roof applications with distance b greater than 18”/450 mm H 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 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 25 Control for Weather-Responsive Operation Control for Weather-Responsive Operation Built into the Vitodens 200 boiler is a Comfortrol 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...
- Page 26 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 27 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 28 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 29 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 30 Vitodens 200 Accessories Accessories for Vitodens 200 (continued) The temperature sensor connection [TS] located at the top of the low-loss header Legend ensures low return temperatures to the Vitodens 200 boiler at all times, increasing AB Air Bleed operational efficiency. BR Boiler Return In addition, the low-loss header helps BS Boiler Supply...
- Page 31 – The Vitodens 200 Combi boiler is equipped with an integrated stainless steel plate heat exchanger for instantaneous DHW heating. – Venting material is to be supplied by Viessmann only. Side wall vent installations must include Viessmann protective screen! – Enclosure finish: black steel, powder-coated white –...
- Page 32 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 33 Installation Examples System Layout 1 Vitodens 200 (model WB2 6-24C) with a direct-connected heating circuit PRV 1 Air vent DCW Domestic cold water DHW Domestic hot water PRV 1 Pressure relief valve (30 psig) PRV 2 Pressure relief valve (150 psig) PRV 2 Water softening equipment/filter Vitodens 200 gas-fired Combi...
- Page 34 Installation Examples System Layout 2 Vitodens 200 (up to model WB2 8-32) with... – DHW storage tank – one direct-connected heating circuit – one heating circuit with a mixing valve Air vent PRV Pressure relief valve TPV Temperature and pressure relief valve Vitodens 200 gas-fired condensing boiler with Comfortrol programming...
- Page 35 See page 29 in this manual for details on An expansion board (optional) must be the low-loss header. ordered from Viessmann to control this pump. See page 29 for details. The underfloor heating circuit is supplied by a circulation pump installed on site which is controlled by the accessory kit.
- Page 36 Vitocontrol. Contact your local Viessmann Technical Sales Representative for details. Upon a call for DHW, the built-in diverting solenoid valve is energized. The boiler hot...
- Page 37 Installation Examples System Layout 5 Vitodens 200 (up to model WB2 8-32) with... – direct-connected heating circuit – one heating circuit with system separation AV Air vent PRV Pressure relief valve TPV Temperature and pressure relief valve Vitodens 200 gas-fired condensing boiler with Comfortrol programming unit for weather-responsive operation...
- Page 38 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 Comfortrol programming unit for weather-responsive operation Outdoor temperature sensor of...
- Page 39 Installation Examples System Layout 7 Vitodens 200 (model WB2 11-44 and up) with... – DHW storage tank – one heating circuit with mixing valve and system separation AV Air vent PRV Pressure relief valve TPV Temperature and pressure relief valve Vitodens 200 gas-fired condensing boiler with Comfortrol programming unit for weather-responsive...
- Page 40 (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 41 See page 29 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 42 Low-loss header DHW circulating pump (field supplied) DHW tank temperature sensor When designing a system as illustrated above, please contact DHW storage tank your local Viessmann Sales Representative for assistance. Expansion tank Contact your local Sales Representative for details. IMPORTANT...
- Page 43 To minimize distribution losses, size and ventilation method of the room in of underfloor plastic tubing without an Viessmann recommends that the heating which it is located. oxygen diffusion barrier. Such systems must and domestic hot water systems be based...
- Page 44 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 •...