Viessmann VITODENS 200-W WB2B Start-Up/Service Instructions
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Viessmann VITODENS 200-W WB2B Start-Up/Service Instructions

Wb2b series wall-mounted, natural gas-fired condensing boiler, for operation with natural gas heating input 104 to 370 mbh & 30 to 108 kw
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See also: Instruction and Installation Manual , Technical Data Manual
Start-up/Service Instructions
for use by heating contractor
Vitodens 200-W, WB2B Series
Models WB2B 80, 105
Wall-mounted, natural gas-fired condensing boiler
For operation with natural gas
Heating input 104 to 370 MBH
30 to 108 kW
VITODENS 200-W
5418 913 v1.0 b2 08/2009
IMPORTANT
Read and save these instructions
for future reference.
 This trademark is registered with the U.S. Patent and Trademark Office.

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  • Page 1 Start-up/Service Instructions  for use by heating contractor Vitodens 200-W, WB2B Series Models WB2B 80, 105 Wall-mounted, natural gas-fired condensing boiler For operation with natural gas Heating input 104 to 370 MBH 30 to 108 kW VITODENS 200-W  IMPORTANT Read and save these instructions for future reference.

  • Page 2: Safety, Installation And Warranty Requirements

    Safety, Installation and Warranty Requirements 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

    Index Page General Information Safety, Installation and Warranty Requirements ........Operating and Service Documentation .

  • Page 4: Table Of Contents

    Troubleshooting Diagnostics ......................Corrective Action .

  • Page 5: Important Regulatory And Installation Requirements

    - Start-up/Service Instructions Viessmann for additional copies. - Operating Instructions and User’s Information Manual This product comes with several - Instructions of other Viessmann safety instruction labels attached. products utilized and installed Do not remove! - Installation codes mentioned Contact Viessmann immediately if in this manual replacement labels are required.

  • Page 6: General Information

    General Information Important Regulatory and Installation Requirements (continued) Special Requirements for Side-Wall Vented Appliances In the Commonwealth of Massachusetts The Commonwealth of Massachusetts requires compliance with regulation 248 CMR 4.00 and 5.00 for installation of side-wall vented gas appliances as follows: (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...
  • Page 7 General Information Important Regulatory and Installation Requirements (continued) Special Requirements for Side-Wall Vented Appliances In the Commonwealth of Massachusetts (continued) (d) MANUFACTURER REQUIREMENTS - GAS EQUIPMENT VENTING SYSTEM NOT PROVIDED. When the manufacturer of a Product Approved side-wall horizontally vented gas fueled equipment does not provide the parts for venting the flue gases, but identifies ”special venting systems”, the following requirements shall be satisfied by the manufacturer: 1.

  • Page 8: About These Start-Up/Service Instructions

    General Information About these Start-up/Service 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. Warnings draw your attention to the WARNING presence of potential hazards or important product information.

  • Page 9: Applicability

    General Information General Information Applicability IMPORTANT When ordering replacement parts, provide either the 16-digit serial 12-digit ASME/NB serial number number (on the bar code label) or the (located on metallic plate riveted 12-digit ASME/NB serial number, to the heat exchanger) located as shown underneath boiler front enclosure panel.

  • Page 10: Mechanical Room

    General Information Mechanical Room During the early stages of designing a new home, we recommend that proper consideration be given to constructing a separate mechanical room dedicated to the gas- or oil-fired heating equipment and domestic hot water storage tank(s). The boiler must be located in a heated indoor area, near a floor drain, and as close as possible to a wall.

  • Page 11: Removing Front Enclosure Panel

    General Information Removing Front Enclosure Panel Some of the following start-up/service steps require the removal of the front enclosure panel. To avoid personal injury and/or product damage of any kind please follow the instructions below carefully when removing the front enclosure panel. 1.

  • Page 12: Procedure (Overview)

    Initial Start-up and Service Procedure (Overview) Initial start-up steps Service steps Page 1. Bleed air from boiler heat exchanger ....................Page 2.
  • Page 13 Initial Start-up and Service Steps 1. Bleed air from boiler heat exchanger nitial start-up 1. Close isolation valves (not shown) connected to A and B. 2. Connect drain hose to drain valve C, and connect fill hose to boiler fill valve F. 3.

  • Page 14: Steps

    Initial Start-up and Service Steps 3. Fill heating system with water nitial start-up 1. Open system isolation valves at C Please note: and D (if installed). Before filling the heating system with water, check that all necessary flow check valves are installed. 2.
  • Page 15 Initial Start-up and Service Steps (continued) 4. Check power supply connection nitial start-up A power/pump module is supplied with IMPORTANT the Vitodens 200, WB2B boiler, which requires a 120 VAC power supply from a wall receptacle. In Canada all electrical wiring is to be The module contains a 120/230 VAC done in accordance with the latest step-up transformer to power the boiler...
  • Page 16 Initial Start-up and Service Steps (continued) 6. Select language (if required) nitial start-up HWhen the boiler is started up for the first time the display appears in German (factory default setting). 1. Press “i”. “Heizkreis wählen” appears on display. 2. Press “ ”...
  • Page 17 5,000 ft. / 1,500 m. For operation in higher altitudes, the existing coding card must be replaced with a high altitude coding card. See table below or the Viessmann Price List for order information. 1. Pull out the existing coding card, cut and remove it from the cable tie.
  • Page 18 Initial Start-up and Service Steps (continued) 9. Measure static pressure and running pressure nitial start-up ervice 1. To measure static and/or running pressure remove boiler enclosure IMPORTANT panel as indicated page 11 in these inlet instructions. A CO measurement (see page 26) must 2.
  • Page 19 Initial Start-up and Service Steps (continued) 10. Set maximum input nitial start-up HThe maximum input (or output) for The input for DHW production can be heating operation can be limited. The limited as well. To do so, change limit is set via the modulation range. coding address “6F”...
  • Page 20 Steps (continued) 13. Check coaxial venting system for leaks (circular air gap measurement) nitial start-up Viessmann strongly recommends that The vent pipe adaptor comes with the heating contractor perform a two measurement ports, one for simplified leak test during boiler combustion air-intake measurement start-up.
  • Page 21 Initial Start-up and Service Steps (continued) 15. Check burner refractory and cylinder assembly ervice Check the burner refractory ring C and cylinder burner assembly E for damage and replace if necessary. 1. Remove electrode block and ionization electrode A. 2. Undo the three retaining clips B at the refractory ring C and remove refractory ring C.
  • Page 22 Initial Start-up and Service Steps (continued) 17. Clean combustion chamber/heat exchanger surface ervice 1. Remove front enclosure panel (if still installed) as per the instructions on page 11 in this manual, and reinstall panel upon completion of service work. 2. If necessary, clean the combustion Please note: chamber and heat exchanger Be careful not to scratch parts which...
  • Page 23 Initial Start-up and Service Steps (continued) 18. Check condensate drain ervice 1. Check that condensate can drain IMPORTANT freely at the siphon trap C. If the condensate does not drain freely, 2. If necessary clean siphon trap C by condensate will accumulate in bottom pulling off cap A downwards, part of boiler resulting in a burner undoing union nut B and pulling off...
  • Page 24 Initial Start-up and Service Steps (continued) 20. Check diaphragm expansion tank and system pressure nitial start-up ervice Perform check with the system cold. 1. Drain boiler/system and reduce pressure until the manometer reading is ”0”. 2. If the nitrogen pressure of the Example precharged expansion tank is less Static head of 33 ft./10 m...
  • Page 25 Initial Start-up and Service Steps (continued) 22. Check electrical connections nitial start-up ervice Ensure all plug-in connectors and strain Installation Instructions reliefs make positive contact and are Power/Pump Module seated properly. 23. Check gas pipes and fittings for leaks nitial start-up ervice WARNING The gas supply piping must be leak...
  • Page 26 The Vitodens 200, WB2B boiler is equipped with the Lambda Pro Combustion Management System developed by Viessmann which ensures optimal combustion quality independent of gas quality and type. (For a description of the Lambda Pro Combustion Management System, see page 29 in this manual.) During initial start-up and maintenance you will only need to check the CO content at the boiler vent pipe adaptor.
  • Page 27 Initial Start-up and Service Steps (continued) 25. Clock natural gas meter nitial start-up ervice Clock natural gas meter to verify input. Ensure all other gas equipment For example: served by the meter is turned off A Vitodens 200-W, WB2B 30-105 during timing of gas input to the boiler (370 000 Btu/h input) requires Vitodens 200-W, WB2B boiler.
  • Page 28 Control Technology Outdoor Reset Programming Unit (Vitotronic 200, HO1) Overview of controls and indicators Boiler temp. RESET A Pressure gage D Reset button B Fault display (red) E ON / OFF switch C Operating status display (green) Boiler temp. ºF Fig.
  • Page 29 Control Technology Outdoor Reset Programming Unit (continued) Functional description Space heating mode Domestic hot water supply DHW boost heating / additional heating The control unit calculates a boiler with gas-fired space heating boiler function water setpoint temperature based on Domestic hot water heating is This function will heat your DHW tank the outdoor or room temperature activated when the tank temperature is...
  • Page 30 Control Technology Outdoor Reset Programming Unit (continued) Heating system types During initial start-up the control until must be matched to the type of heating system installed. In the factory default setting, the heating system type is coded as ”00:1” (heating system with one heating circuit without mixing valve, without domestic hot water heating.
  • Page 31 Control Technology Outdoor Reset Programming Unit (continued) Heating system types (continued) System type 4 or 5 (with or without low-loss header) Heating system with one heating circuit without mixing valve, one heating circuit with mixing valve, with/without domestic hot water heating. Coding address “00:5”...
  • Page 32 Control Technology Outdoor Reset Programming Unit (continued) Heating curve adjustment ºF / ºC The heating curves represent the relationship between the outdoor temperature and the boiler water or supply temperature. Put simply: The lower the outdoor temperature, the higher the boiler water or supply temperature.
  • Page 33 Control Technology Outdoor Reset Programming Unit (continued) Heating curve adjustment (continued) 1. To change the slope Change with coding address “d3“ in 230/ coding level 1. Setting range 2 to 35 (equals slope 0.2 to 3.5). +68/20 -4/20 Outdoor temperature in ºF/ºC Fig.
  • Page 34 Control Technology Outdoor Reset Programming Unit (continued) Room temperature setpoint adjustment Standard Room Temperature 1. Press “⊕”. “1r r “ flashes on the Temperature conversion: display. ˚C ˚F 2. Press “ ” to select a heating circuit without a mixing valve 3.
  • Page 35 Control Technology Outdoor Reset Programming Unit (continued) Connecting the boiler control to a LON system Vitocom LON Communication Module (accessory) must be connected. Installation Instructions LON Communication Module Note! Data transfer via LON can take several minutes. Single-boiler system with Vitotronic 200-H, HK1M and Vitotronic 200-H, HK1S mixing valve controls and Vitocom LON communication module Set up the LON participant numbers and other functions via coding level 2 (see table below).
  • Page 36 Control Technology Outdoor Reset Programming Unit (continued) Connecting the boiler control to a LON system (continued) Updating the LON participant list Only possible if all participants are connected and the control unit is programmed to be fault manager (coding address ”79:1”). 1.
  • Page 37 Control Technology Outdoor Reset Programming Unit (continued) Connecting the boiler control to a LON system (continued) Performing participant check User check Conditions: : 01 O O O O HThe control unit must be programmed as fault manager (code ”79:1”) HThe LON participant number must be programmed in all control units (see table on previous page) HThe LON participant list in the fault...
  • Page 38 Control Technology Outdoor Reset Programming Unit (continued) Scanning and resetting the “Service” display The red fault indicator flashes when the limits for the maintenance interval (set via coding address ”21”) and the burner service interval (coding address ”23”) have been reached. On the programming unit the word “Service” flashes. Note! Set coding address “24”...

  • Page 39: Coding Level 1

    Coding Coding Level 1 Accessing coding level 1 Note! HAll codes are displayed as plain text. HCodes that are irrelevant due to the system equipment level or the setting of other codes will not be displayed. HHeating systems with one heating circuit without mixing valve and one heating circuit with mixing valve Initially, coding addresses ”A0”...
  • Page 40 Coding Coding Level 1 (continued) Overview of coding addresses Coding addresses not discussed in this section must not be changed. See page 39 for information of how to access the coding addresses in coding level 1. Coding (factory default setting) Possible change System design 00 :1...
  • Page 41 Coding Coding Level 1 (continued) Overview of coding addresses (continued) Coding (factory default setting) Possible change Summer setback (econ.) A1, M2 A5:5 With heating circuit pump logic function A5:0 Without heating circuit pump logic function Minimum supply temperature C5:20 Electronic minimum supply temperature C5:1 Minimum limit adjustable from 34 to 261 °F/1 limit 68 °F/20 °C...

  • Page 42: Coding Level 2

    Coding Coding Level 2 Accessing coding level 2 Note! HAll codes are displayed as plain text. HCodes that are irrelevant due to the system equipment level or the setting of other codes will not be displayed. 1. Press “w“ + “r r w“...
  • Page 43 Coding Coding Level 2 (continued) Overview of coding addresses Coding (factory default setting) Possible change System design 00 :1 System type 1, 2: 00 :2 System type 1, 2: 1 heating circuit without mixing valve, 1 heating circuit without a mixing valve, without DHW heating with DHW heating 00 :3...
  • Page 44 Coding Coding Level 2 (continued) Overview of coding addresses (continued) Boiler pump sÖ Heating circuit pump Heating circuit pump DHW circulation pump Value Heating circuit Heating circuit coding address without mixing valve with mixing valve 32: ... Control function Control function Control function Control function Control function...
  • Page 45 Coding Coding Level 2 (continued) Overview of coding addresses (continued) Boiler pump sÖ Heating circuit pump Heating circuit pump DHW circulation pump Value Heating circuit Heating circuit coding address without mixing valve with mixing valve 34: ... Control function Control function Control function Control function Control function...
  • Page 46 Coding Coding Level 2 (continued) Overview of coding addresses (continued) Coding (factory default setting) Possible change Domestic hot water (DHW) 5b:0 DHW tank directly connected to the 5b:1 DHW tank connected downstream of the low- boiler loss header 60:20 During DHW heating, the boiler water 60:5 The difference between the boiler water tem- temperature is max.
  • Page 47 Coding Coding Level 2 (continued) Overview of coding addresses (continued) Coding (factory default setting) Possible change General 7F:1 Detached house 7F:0 Apartment Separate adjustment of holiday program and time program for DHW heating, as option 80:1 80:1 A fault message is displayed, providing a A fault message is displayed, providing a 80:0 Immediate fault message...
  • Page 48 Coding Coding Level 2 (continued) Overview of coding addresses (continued) Coding (factory default setting) Possible change General 9F:8 Differential temperature 8 K; only in con- 9F:0 Differential temperature adjustable from 0 to junction with the mixing valve circuit 40 K (0 to 72 °F) 9F:40 Boiler circuit, mixing valve circuit A0:0...
  • Page 49 Coding Coding Level 2 (continued) Overview of coding addresses (continued) Coding (factory default setting) Possible change Boiler circuit, mixing valve circuit A4:0 With frost protection A4:1 No frost protection, adjustment only possible if coding address ”A3: -9” has been selected. Note! Observe the note for code ”A3”...
  • Page 50 Coding Coding Level 2 (continued) Overview of coding addresses (continued) Coding (factory default setting) Possible change Boiler circuit, mixing valve circuit A9:7 With pump stop function: Heating circuit A9:0 Without pump stop function pump ”OFF” if the setpoint changes pump ”OFF” if the setpoint changes A9:1 With pump stop function;...
  • Page 51 Coding Coding Level 2 (continued) Overview of coding addresses (continued) Coding (factory default setting) Possible change Boiler circuit, mixing valve circuit d5:0 External heating program changeover via d5:1 Heating program changes to constant plug aVD: Heating program changes to operation with normal room temperature constant operation with reduced room temperature E5:0...

  • Page 52: Service Level Overview

    Coding Coding Coding Level 2 (continued) Resetting coding addresses to the factory default setting 1. Press “w“ + “r r w“ simultaneously for approx. 2 sec. 2. Press “ ”. “Factory set? Yes” appears. 3. Press “ ” to confirm. 4.

  • Page 53: Temperatures, Boiler Coding Card And Brief Scans

    Service Scans Service Scans Service Level Overview (continued) Press “9” and “w” for Coding level 1 Press “9” and “w” for Plain text display approx. 2 sec. simultaneous- approx. 1 sec. simultaneous- Coding level 2 Press “w” and “rw” for Press “w”...

  • Page 54: Checking Outputs (Relay Test)

    Service Scans Service Scans Temperatures, Boiler Coding Card and Brief Scans (continued) Brief Display screen scan Software version Type Burner control Equipment type Burner control unit unit 0: no external 0: no external External 0 to 10 V hook-up demand blocking Display in °C 1: external...

  • Page 55: Scanning Operating Conditions And Sensors

    Service Scans Scanning Operating Conditions and Sensors 1. Press “i“. “Select heating circuit” is displayed. 2. Press “ “ to confirm. Wait approx. 4 sec. 3. Press “i“ again. 4. Press “⊕ / “ for required operating condition. 5. Press “ “...

  • Page 56: Troubleshooting

    Troubleshooting Diagnostics Fault display Outside temp. sensor RESET A Fault display C Fault number B Fault symbol D Fault code The red fault indicator flashes for every fault. A fault in the burner control unit causes the display to show ” ”. The display flashes ”Fault”...

  • Page 57: Troubleshooting

    Troubleshooting Diagnostics (continued) Retrieving an acknowledged fault message 1. Press “ “ for approx. 3 sec. 2. Press “⊕ / “ to select the acknowledged fault. Retrieving fault codes from the fault memory (fault history) The ten most recent faults are saved and can be scanned. The faults are in order of date, so the most recent fault is fault number 1.
  • Page 58 Troubleshooting Diagnostics (continued) Fault codes (continued) Fault code on display System behavior Cause Corrective action Mixing valve closes Heating circuit with mixing Check the supply tempera- valve supply temperature ture sensor (see page 62). sensor shorted out Mixing valve closes Heating circuit with mixing Check the supply tempera- valve supply temperature...
  • Page 59 Troubleshooting Diagnostics (continued) Fault codes (continued) Fault code on display System behavior Cause Corrective action Mixing valve regulates to a Communication fault - acces- Check accessory kit connec- supply temperature of 20 °C sory kit for heating circuit tions and coding. with mixing valve Turn on the accessory kit.
  • Page 60 Troubleshooting Diagnostics (continued) Fault codes (continued) Fault code on display System behavior Cause Corrective action Burner in fault mode The ionization current lies Check the ionization elec- outside the permissible range trode and cable. Press ” RESET”. Burner in fault mode The ionization current lies Check the ionization outside the permissible range...
  • Page 61 Troubleshooting Diagnostics (continued) Fault codes (continued) Fault code on display System behavior Cause Corrective action Burner in fault mode Fan speed too low during Check the fan, the fan cables burner start and power supply. Check the fan control. Press ” SET”.

  • Page 62: Corrective Action

    Troubleshooting Corrective Action Check outdoor temperature sensor 1. Pull plug ”X3” from the control unit. 2. Test the resistance of the outdoor temperature sensor across terminals ”X3.1” and ”X3.2” on the disconnected plug and compare it with the curve. 3. Where actual values strongly deviate from the curve values, disconnect the wires at the sensor and repeat test immediately at the sensor.
  • Page 63 Troubleshooting Corrective Action (continued) Check boiler temperature sensor, tank temperature sensor or supply temperature sensor of the low-loss header (continued) 2. Check the sensor resistance and WARNING compare the actual values with the curve in the chart. The boiler temperature sensor is immersed in the heating water (risk 3.
  • Page 64 Troubleshooting Corrective Action (continued) Check fixed high limit Check the fixed high limit, if the burner control cannot be reset after a fault shutdown, although the boiler water temp. is below approx. 75 °C / 167 °F: 1. Remove cables from the fixed high limit A.
  • Page 65 Troubleshooting Corrective Action (continued) Check accessory kit for heating circuit with mixing valve Checking the rotational direction of the mixing valve motor: 1. Switch ON/OFF switch A at the IMPORTANT accessory kit first OFF and then ON again. The device will perform the following self-check: The supply temperature sensor must H Mixing valve ”Close”...

  • Page 66: Control Functions

    Additional Information Control Functions External heating program changeover The ”External heating program changeover” function is connected via input ”aVD” in the power/pump module. You can select which heating circuits the heating program changeover affects in coding address ”91”: Heating program changeover Coding No changeover 91:0...

  • Page 67: Additional Information

    Additional Information Control Functions (continued) Air bleed program During the air bleed program, the circulation pump will be alternately switched ON and OFF for 30 sec. at a time over a period of 20 min. The burner is switched OFF during the air bleed program. The program is activated via code ”2F:1”...
  • Page 68 Additional Information Control Functions (continued) Reducing the heat-up time During the transition from operation with reduced room temperature to operation with standard room temperature, the boiler water or supply temperature will be raised in accordance with the selected heating curve. The boiler water or supply temperature can be automatically increased.

  • Page 69: Wiring Diagrams

    Additional Information Wiring Diagram 99 C 210 F 190A X1 X2 INTERNAL CONNECTIONS X8.1 X8.10 X8.11 X9.1 GC131 BURNER IGNITION MODULE X9.3 X9.4 WARNING! DISCONNECT POWER BEFORE SERVICING BOILER. CAUTION! LABEL ALL WIRES PRIOR TO DISCONNECTION WHEN SERVICING CONTROLS. WIRING ERRORS CAN CAUSE IMPROPER AND 1 2 3 4 5 6 7 DANGEROUS OPERATION.
  • Page 70 Additional Information Wiring Diagram (continued) Legend Outside Temperature Sensor Fixed High Limit A1 Main PCB (GC131 Ignition Module) Flow Temperature Sensor/Low Loss Header A2 Internal Power Supply Unit Fault Alarm Output Ignition Transformer Boiler Water Temperature Sensor A3 Optolink DHW Temperature Sensor Power Supply Accessory (Not Used) A4 Burner Control Unit Ionization Electrode...

  • Page 71: Parts Lists

    7374869£££££££££ Ordering Replacement Parts: Please provide model no. from rating plate and serial no. when ordering replacement parts. Order replacement components from your Viessmann distributor. Parts 008 Gas distribution pipe 009 Gas connection pipe 011 Gasket set 012 Gaskets NG/LP...
  • Page 72 Additional Information Parts Lists (continued) Serial No. Model No. WB2B 80 7374868£££££££££ WB2B 105 7374869£££££££££ Parts 001 Gasket for flue gas, d=100mm 002 Gasket for air intake, d=150mm 003 Vent pipe adaptor, 110/150 004 Condensate hose 006 Heat exchanger assembly, ASME 007 Combustion chamber refractory 010 Sealing grommet set 011 Gasket set...
  • Page 73 Additional Information Parts Lists (continued) Serial No. Model No. WB2B 80 7374868£££££££££ WB2B 105 7374869£££££££££ Parts 005 Press. gage, PSI 100 Control console 101 Back cover for control console 102 Fastening clip (set of 10) 103 Control housing, bottom 104 Flip-down cover 105 Pressure gage insert 106 Clip for control housing (set of 10)
  • Page 74 Service Measurements Service Service Service Service Setpoint value Service date: date: date: date: date: date: max. Static pressure “w.c. 14 “w.c. Running pressure (supply pressure) j Natural gas “w.c. 4-14 ”w.c. j LP (not applicable) “w.c. 111-14 “w.c Check gas type Carbon dioxide content CO H at lower end of rated input range vol.-%...

  • Page 75: Technical Data

    Additional Information Technical Data Boiler Model Model No. WB2B- 30-80 30-105 Natural gas / Propane NG only NG only 104-285 104-370 CSA input 30-83 30-108 95-260 98-350 CSA output/DOE 29-76 29-103 heating capacity Net I=B=R rating 28.88 28.88 Heat exchanger surface area 2.68 2.68 Min.
  • Page 76 Do not attempt to common-vent Vitodens 200-W 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 Installation Instructions for the Vitodens 200-W, WB2B Venting System.

  • Page 77: Lighting And Operating Instructions

    Lighting and Operating Instructions FOR YOUR SAFETY READ BEFORE OPERATING W A R N I N G: If you do not follow these instructions exactly, a fire or explosion may result causing property damage, personal injury or loss of life. A.
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  • Page 81 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 •...

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