Viessmann VITODENS 200-W Service Instructions Manual
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Viessmann VITODENS 200-W Service Instructions Manual

Wall-mounted, gas-fired condensing boiler natural gas and lpg version
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See also: Technician Manual , Instruction and Service Manual
Service Instructions
for use by heating contractors
Vitodens 200-W,
Type B2HA 112 and 150
Wall-mounted, gas-fired condensing boiler
Natural gas and LPG version
For operation with Natural Gas and Liquid Propane Gas
Heating input
113 to 530 MBH
33 to 150 kW
VITODENS
5683 710 - 09 06/2015
200-W
r
H
Product may not be exactly as shown
IMPORTANT
Read and save these instructions
for future reference.
Please file in Service Binder

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Summary of Contents for Viessmann VITODENS 200-W

  • Page 1 Service Instructions for use by heating contractors Vitodens 200-W, Type B2HA 112 and 150 Wall-mounted, gas-fired condensing boiler Natural gas and LPG version For operation with Natural Gas and Liquid Propane Gas Heating input 113 to 530 MBH 33 to 150 kW...

  • Page 2: Safety

    Safety Vitodens 200-W B2HA 112, 150 Service 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 Safety Vitodens 200-W B2HA 112, 150 Service Safety, Installation and Warranty Requirements Fiberglass wool and ceramic fiber materials First aid measures - If eye contact occurs, flush eyes with water to WARNING remove dust. If symptoms persist, seek medical attention.

  • Page 4: Table Of Contents

    Table of Contents Vitodens 200-W B2HA 112, 150 Service Page Safety Safety, Installation and Warranty Instructions....2 General Information About these Installation Instructions......6 Necessary Tools............6 Important Regulatory and Installation Requirements..7 Applicability..............9 Product Information............9 Mechanical Room.............10 Start-up and Service Accessing the User Interface Programming Unit...11 Select Language............11...
  • Page 5 Table of Contents Vitodens 200-W B2HA 112, 150 Service Page Coding 1 General..............40 Boiler..............42 DHW...............42 Solar...............43 Heating Circuit 1, 2 and 3..........44 Coding 2 General..............48 Boiler..............55 DHW...............56 Solar...............58 Heating Circuit 1, 2 and 3..........62 Diagnosis and Service Scans Calling up the Service Level........68 Diagnosis..............69...

  • Page 6: General Information

    General Information Vitodens 200-W B2HA 112, 150 Service About these 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 presence of WARNING potential hazards or important product information.

  • Page 7: Important Regulatory And Installation Requirements

    - Service Instructions - Operating Instructions and User’s Information Manual Working on the equipment - Instructions of other Viessmann products utilized and installed The installation, adjustment, service, and maintenance - Installation codes mentioned in this manual...
  • Page 8 As per ASME Boiler and Pressure Vessel Code, section IV, subsection HG-613 TEMPERATURE CONTROL requirements, Vitodens 200-W hot water boilers are protected from over-temperature by two temperature-operated controls. These temperature control devices conform to Standards for Limit Controls, and are accepted by CSA, a nationally recognized testing agency.

  • Page 9: Applicability

    Boiler model must be selected based on an accurate heat loss calculation of the building. Ensure boiler model is compatible with connected radiation. Vitodens 200-W, B2HA series boilers are factory-tested and calibrated. Further gas valve adjustments are not typically required during field start-up.

  • Page 10: Mechanical Room

    General Information Vitodens 200-W B2HA 112, 150 Service 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).

  • Page 11: Start-Up And Service

    Start-up and Service Vitodens 200-W B2HA 112, 150 Service Accessing the User Interface Programming Unit 1. Turn up both locks to unlock the user interface programming unit covers. 2. Slide open the user interface programming unit covers. Select Language At the commissioning stage, the display is in German.

  • Page 12: Removing Front Enclosure Panel

    Start-up and Service Vitodens 200-W B2HA 112, 150 Service Removing Front Enclosure Panel Some of the following service steps require the removal IMPORTANT of the front enclosure panel. To avoid personal injury and/or product damage of any kind please follow the Close the main gas supply valve.

  • Page 13: Fill Heating System With Water

    Start-up and Service Vitodens 200-W B2HA 112, 150 Service Fill Heating System with Water 3. To remove debris and/or sludge ensure that the system piping is flushed out. Failure to do so could cause settlement in the boiler causing overheating and damage not covered by warranty.

  • Page 14: Bleed (Vent) Air From Boiler Heat Exchanger

    Start-up and Service Vitodens 200-W B2HA 112, 150 Service Bleed (Vent) Air from Boiler Heat Exchanger 1. Connect hose to boiler filling tap and other end to a fresh water supply (or heating medium). 2. Open fresh water supply valve and then the boiler filling tap slowly (isolation valves must be closed during fill/bleed process).

  • Page 15: Check Power Supply Connection

    To enter names for heating circuits: Refer to the Operating Instructions Select Gas Type Note: the Vitodens 200-W, B2HA boiler is factory set to operate with natural gas . See following subsection for conversion instructions to liquid propane gas. 1. Ensure that the fuel type listed on the boiler rating plate is the correct type for the installation being attempted.

  • Page 16: Convert Fuel Type To Liquid Propane Gas

    Convert Fuel Type to Liquid Propane Gas 1. Set adjusting screw A at the gas valve to “2” (using a hex key, 2.5 mm). Note: The Vitodens 200-W, B2HA boiler comes factory adjusted for operation with natural gas. Coding address “82” is set to “0” (operation with natural gas) in the factory default setting.

  • Page 17: Measure Static Pressure And Running Pressure

    Start-up and Service Vitodens 200-W B2HA 112, 150 Service Measure Static Pressure and Running Pressure 1. To measure static and/or running pressure remove boiler enclosure panel as indicated page 12 in these instructions. 2. Close gas shutoff valve (field supplied).

  • Page 18: Pressure Switches

    Start-up and Service Vitodens 200-W B2HA 112, 150 Service Pressure Switches Rear View GDW1 low pressure gas switch (n.c.) When the gas pressure rises above 4” w.c. the switch will open and the burner will operate. When the gas pressure drops below 4” w.c. the switch will close and the boiler control will shut off the burner.

  • Page 19: Sequence Of Operation And Potential Faults During Each Start-Up Cycle

    Start-up and Service Vitodens 200-W B2HA 112, 150 Service Sequence of Operation and Potential Faults During Each Start-up Cycle Display message Measures Increase set value and ensure Call for heat by control heat is drawn off Fan starts up After approx.

  • Page 20: Set Maximum Input

    Start-up and Service Vitodens 200-W B2HA 112, 150 Service Set Maximum Input The maximum input (or output) for heating operation can be limited. The limit is set via the modulation range. The maximum adjustable heating input (or output) is limited upwards by the boiler coding card.

  • Page 21: Check Coaxial Venting System For Leaks

    Start-up and Service Vitodens 200-W B2HA 112, 150 Service Check Coaxial Venting System for Leaks (circular air gap measurement) Viessmann strongly recommends that the heating contractor perform a simplified leak test during boiler start-up. For this purpose it is sufficient to measure...

  • Page 22: Checking The Flue Gas Flapper

    Start-up and Service Vitodens 200-W B2HA 112, 150 Service Checking the Flue Gas Flapper 1. Undo three screws and remove fan A. 2. Remove the flue gas flapper B. 3. Check the flapper and gasket for dirt and damage. Replace as necessary.

  • Page 23: Check And Adjust Ignition And Ionization Electrodes

    Start-up and Service Vitodens 200-W B2HA 112, 150 Service Check and Adjust Ignition and Ionization Electrodes 1. Check the ignition electrodes A and ionization electrode B for wear and contamination. 2. Clean electrodes with small brush (not a wire brush) or emery paper (cloth).

  • Page 24: Check Condensate Drain

    Start-up and Service Vitodens 200-W B2HA 112, 150 Service Check Condensate Drain Cleaning condensate trap (during regular maintenance) Remove rubber cap D from below the condensate trap. Unscrew threaded cap E from the condensate trap C. Note: After unscrewing the threaded cap E it may be necessary to pry off to remove.

  • Page 25: Check Neutralization Unit (If Applicable)

    Start-up and Service Vitodens 200-W B2HA 112, 150 Service Check Neutralization Unit (if applicable) 1. Check the pH value of the condensate with pH measuring strip. If the pH value is less than 6.5, replace granulate. 2. If contaminated: Rinse neutralization unit with tap water.

  • Page 26: Check Functioning Of Safety Valves

    Start-up and Service Vitodens 200-W B2HA 112, 150 Service Check Functioning of Safety Valves Ensure proper operation of low water cut-off(s) (if applicable), pressure relief valve, and pump(s). Check pressure gage, air vent and pressure relief valve. Ensure that pressure relief valve does not leak and that it operates in accordance with information provided by the manufacturer.

  • Page 27: Clock Natural Gas Meter

    Multiply this number by the heating value of the gas to obtain Btu per hour input. For example: A Vitodens 200-W, B2HA 150 boiler (530000 Btu/h input) requires 68 sec. to use 10 ft. of natural gas. After contacting the local utility, you will find the heating value is 1000 Btu per ft.

  • Page 28: Check Co 2 Setting

    - Press OK and simultaneously for approximately 4 seconds. Note: The Vitodens 200-W, B2HA boiler comes factory set - “Actuator test” to operation with natural gas. (For instructions on how - Select lower heating output: select “Base load OFF”.

  • Page 29: Outdoor Reset Programming Unit

    Outdoor Reset Programming Unit Vitodens 200-W B2HA 112, 150 Service Start-up and Shutdown Starting the heating system 1. Check the heating system pressure at the pressure gauge. The heating system pressure is too low if the indicator points to the area below 15 psi.
  • Page 30 Outdoor Reset Programming Unit Vitodens 200-W B2HA 112, 150 Service Menu (continued) Note: For any other connected heating circuits, use the settings in the extended menu. Call up the standard menu as follows: - If the screen saver is active...

  • Page 31: Functional Description

    (%) for natural gas content (%) for liquid propane gas 1.20 11.3 1.24 10.9 1.27 10.6 1.30 10.3 1.34 10.0 1.37 1.40 1.44 1.48 The Vitodens 200-W, B2HA boilers come equipped with Lambda Pro, the industry’s first intelligent combustion management system.

  • Page 32: Installation Examples

    Outdoor Reset Programming Unit Vitodens 200-W B2HA 112, 150 Service Installation Examples System type 1 Matching the control unit to the heating system System Examples for codes 00:1 and 00:2 The control unit must be matched to the equipment Heating system with one heating circuit without mixing level of the system.
  • Page 33 Outdoor Reset Programming Unit Vitodens 200-W B2HA 112, 150 Service Installation Examples (continued) System type 2 System Examples for codes 00:3 and 00:4 Heating system with one heating circuit with mixing valve M2 with system separation, with/without DHW heating, with/without low loss header.
  • Page 34 Outdoor Reset Programming Unit Vitodens 200-W B2HA 112, 150 Service Installation Examples (continued) System type 3 System Examples for code 00:5 and 00:6 Heating system with one heating circuit without mixing valve, one heating circuit with mixing valve, one heating...
  • Page 35 Outdoor Reset Programming Unit Vitodens 200-W B2HA 112, 150 Service Installation Examples (continued) System type 4 System Example for code 00:7 and 00:8 Heating system with one heating circuit with mixing valve, one heating circuit with mixing valve M2 (with...

  • Page 36: Heating Curve Adjustments

    Outdoor Reset Programming Unit Vitodens 200-W B2HA 112, 150 Service Installation Examples (continued) System Example for multiple boilers Multi boiler system with several heating circuits with mixing valve and low loss header (with/without DHW heating) Function/system components Code Adjust Group...
  • Page 37 Outdoor Reset Programming Unit Vitodens 200-W B2HA 112, 150 Service Heating Curve Adjustment (continued) Changing the slope and level Extended menu: 2. Select “Heating” - OK 3. Heating circuit selection 4. Accept with OK 5. Heating curve - OK 6. Slope or level - OK 7.

  • Page 38: Connecting The Boiler Control To A Lon System

    Outdoor Reset Programming Unit Vitodens 200-W B2HA 112, 150 Service Connecting the Boiler Control to a LON System Updating the LON participant list Scanning and resetting the “Service” display Only possible if all participants are connected and the After the limits specified in coding addresses “21” and control unit is programmed to be fault manager (coding “23”...
  • Page 39 Outdoor Reset Programming Unit Vitodens 200-W B2HA 112, 150 Service Connecting the Boiler Control to a LON System (continued) The LON communication module (accessory) must be Note: In the same LON system, the same participant connected. number cannot be allocated twice. Only one Vitotronic may be programmed as fault manager.

  • Page 40: General

    Coding 1 Vitodens 200-W B2HA 112, 150 Service General Calling up coding level 1 2. “Coding level 1” 3. Select group of required coding address: Note: Codes are displayed as plain text. - “General” Codes that have no function due to the heating - “Boiler”...
  • Page 41 Coding 1 Vitodens 200-W B2HA 112, 150 Service General (continued) Coding in the factory set mode Possible change Internal circulation pump function 51:0 System with low loss header: 51:1 System with low loss header: Internal circulation pump always When there is a heat demand,...

  • Page 42: Boiler

    Coding 1 Vitodens 200-W B2HA 112, 150 Service Boiler Select “Boiler” Coding in the factory setting Possible change Single/multi boiler system 01:1 Single boiler system 01:2 Multi boiler system with Vitotronic 300-K, MW2B control. Boiler number 07:1 Boiler number in multi boiler...

  • Page 43: Solar

    Coding 1 Vitodens 200-W B2HA 112, 150 Service Solar Select “Solar” Note: The solar group is only displayed if a solar control module, type SM1, is connected. Coding Coding in the factory setting Possible change Speed control solar circuit pump...
  • Page 44 Coding 1 Vitodens 200-W B2HA 112, 150 Service Heating Circuit 1, 2 and 3 Select “Heating circuit ...” Coding Coding in the factory setting Possible change Priority DHW heating A2:2 DHW tank priority applicable to A2:0 Without DHW tank priority...
  • Page 45 Coding 1 Vitodens 200-W B2HA 112, 150 Service Heating Circuit 1, 2 and 3 (continued) Coding in the factory setting Possible change Extended economy function mixing valve A7:0 Without mixing valve economy A7:1 With mixing valve economy function function (extended heating circuit pump logic): Heating circuit pump also “OFF”:...

  • Page 46: Heating Circuit 1, 2 And 3

    Coding 1 Vitodens 200-W B2HA 112, 150 Service Heating Circuit 1, 2 and 3 (continued) Coding in the factory setting Possible change Minimum flow temperature heating circuit C5:20 Electronic minimum flow temp. C5:1 Minimum limit adjustable from limit 68°F (20°C) 34 to 260°F (1 to 127°C)
  • Page 47 Coding 1 Vitodens 200-W B2HA 112, 150 Service Heating Circuit 1, 2 and 3 (continued) Coding in the factory setting Possible change Pump control in “Only DHW” F6:25 In the “Only DHW” operating F6:0 In the “Only DHW” operating mode, the circulation pump in...

  • Page 48: General

    Coding 2 Vitodens 200-W B2HA 112, 150 Service General If the heating circuits were given individual designations, Calling up coding level 2 the selected designation and “HC1”, “HC2” or “HC3” Note: At coding level 2, all codes are accessible, appear instead: including the codes at coding level 1.
  • Page 49 Coding 2 Vitodens 200-W B2HA 112, 150 Service General (continued) Value address System type Description 00: ... One heating circuit with mixing valve M2 (heating circuit 2) and one heating circuit with mixing valve M3 (heating circuit 3), without DHW heating.
  • Page 50 Coding 2 Vitodens 200-W B2HA 112, 150 Service General (continued) Coding in the factory setting Possible change 39:2 39:0 Function output sA: Circulation Function output sA: DHW pump for DHW tank heating recirculation pump. 39:1 Function output sA: Heating circuit pump.
  • Page 51 Coding 2 Vitodens 200-W B2HA 112, 150 Service General (continued) Coding in the factory setting Possible change 3C:0 Function input DE3 at extension 3C:1 Function input DE3: Heating EA1: Not assigned program - changeover. 3C:2 Function input DE3: External demand with set flow temperature.
  • Page 52 Coding 2 Vitodens 200-W B2HA 112, 150 Service General (continued) Coding in the factory setting Possible change 51:0 System with low loss header: 51:1 System with low loss header: Boiler circuit pump is always When there is heat demand, the...
  • Page 53 Coding 2 Vitodens 200-W B2HA 112, 150 Service General (continued) Coding in the factory setting Possible change 77:1 LON participant number 77:2 LON participant number, adjustable from 1 to 99: 77:99 1 - 4 = Boiler 5 = Cascade 10 - 98 = Vitotronic 200-H...
  • Page 54 Coding 2 Vitodens 200-W B2HA 112, 150 Service General (continued) Coding in the factory setting Possible change 8A:175 DO NOT ADJUST 8F:0 Operation in the standard 8F:1 Operation in the standard menu and extended menu and extended menu menu enabled blocked.

  • Page 55: Boiler

    Coding 2 Vitodens 200-W B2HA 112, 150 Service Boiler Select “Boiler” Coding Coding in the factory setting Possible change 01:1 Single boiler system 01:2 Multi boiler system with Vitotronic 300-K. 04:1 Minimum burner pause subject 04:0 Minimum burner pause set...

  • Page 56: Dhw

    Coding 2 Vitodens 200-W B2HA 112, 150 Service Select “DHW” Coding Coding in the factory setting Possible change 56:0 Set DHW temperature 56:1 Set DHW temperature adjustable adjustable from 50 to 140° F from 50 to over 140° F (10 to (10 to 60°...
  • Page 57 Coding 2 Vitodens 200-W B2HA 112, 150 Service (continued) Coding in the factory setting Possible change 63:0 Without auxiliary function for 63:1 Auxiliary function: 1 x daily NOT USED DHW heating 63:2 Every 2 days to every 14 days. 63:14...

  • Page 58: Solar

    Coding 2 Vitodens 200-W B2HA 112, 150 Service Solar Select “Solar” Note: The solar group is only displayed if a solar control module, type SM1, is connected. Coding Coding in the factory setting Possible change 00:8 The solar circuit pump starts...
  • Page 59 Coding 2 Vitodens 200-W B2HA 112, 150 Service Solar (continued) Coding in the factory setting Possible change 09:130 The solar circuit pump stops 09:20 Temperature adjustable from if the collector temperature 68 to 392°F (20 to 200°C). reaches 266°F (130°C)
  • Page 60 Coding 2 Vitodens 200-W B2HA 112, 150 Service Solar (continued) Coding in the factory setting Possible change 11:50 Set DHW tank temperature for 11:10 The set DHW tank temperature for solar 122°F (50°C). solar can be adjusted from 50 to...
  • Page 61 Coding 2 Vitodens 200-W B2HA 112, 150 Service Solar (continued) Coding in the factory setting Possible change 23:4 Stop temperature differential 23:2 Stop temperature differential for central heating for central heating backup is backup: 4 K. 23:30 adjustable from 1 to 29 K.
  • Page 62 Coding 2 Vitodens 200-W B2HA 112, 150 Service Heating Circuit 1, 2 and 3 Select “Heating circuit ...” Coding Coding in the factory setting Possible change A0:0 Without remote control A0:1 With Vitotrol 200A (automatic recognition). A0:2 With Vitotrol 300A or Vitohome 300 (automatic recognition).
  • Page 63 Coding 2 Vitodens 200-W B2HA 112, 150 Service Heating Circuit 1, 2 and 3 (continued) Coding in the factory setting Possible change A4:0 With frost protection A4:1 No frost protection; this setting is only possible if code “A3:-9” has been selected.

  • Page 64: Heating Circuit 1, 2 And 3

    Coding 2 Vitodens 200-W B2HA 112, 150 Service Heating Circuit 1, 2 and 3 (continued) Coding in the factory setting Possible change A8:1 Heating circuit with mixing valve A8:0 Heating circuit with mixing valve creates a demand for the boiler...
  • Page 65 Coding 2 Vitodens 200-W B2HA 112, 150 Service Heating Circuit 1, 2 and 3 (continued) Coding in the factory setting Possible change C5:20 Electronic minimum flow C5:1 Minimum limit adjustable from 1 to temperature limit 68°F 260°F (127°C) (limited by boiler- (20°C)
  • Page 66 Coding 2 Vitodens 200-W B2HA 112, 150 Service Heating Circuit 1, 2 and 3 (continued) Coding in the factory setting Possible change E5:0 Do not adjust E6:... Maximum speed of the variable E6:0 Maximum speed adjustable speed heating circuit pump in from 0 to 100%.
  • Page 67 Coding 2 Vitodens 200-W B2HA 112, 150 Service Heating Circuit 1, 2 and 3 (continued) Coding in the factory setting Possible change F6:25 In the “Only DHW” operating F6:0 In the “Only DHW” operating mode, mode, the circulation pump in...

  • Page 68: Calling Up The Service Level

    Diagnosis and Service Scans Vitodens 200-W B2HA 112, 150 Service Calling up the Service Level Note: Do not adjust menu item “Multi-boiler system”. Press OK and simultaneously for approximately 4 The menu item turns a weather-compensated seconds. control unit into a constant temperature control Service menu overview unit.

  • Page 69: Diagnosis

    Diagnosis and Service Scans Vitodens 200-W B2HA 112, 150 Service Diagnosis The following values can be scanned, depending on the system installed: Display screen Explanation Slope A1 - shift A1 Slope M2 - shift M2 Outdoor temperature adjustment The adjusted outdoor temperature can be reset to the Outdoor temperature actual actual outdoor temperature with "D”.
  • Page 70 Diagnosis and Service Scans Vitodens 200-W B2HA 112, 150 Service Diagnosis (continued) For an explanation of the relevant values in the individual lines and fields, see the following table: Line Field (brief scan) Heating circuit A1 Heating circuit M2 Heating circuit M2...

  • Page 71: Checking Outputs (Relay Test)

    Diagnosis and Service Scans Vitodens 200-W B2HA 112, 150 Service Checking Outputs (Relay Test) 1. Press OK and simultaneously for approximately 4 seconds. 2. “Actuator test” The following relay outputs can be controlled subject to system design: Display Explanation All actuators All actuators are off.

  • Page 72: Fault Display

    Troubleshooting Vitodens 200-W B2HA 112, 150 Service Fault Display In the event of a fault, red fault indicator A flashes. Acknowledging a fault  “ “ flashes on the display and “Fault” is shown. Follow the instructions on the display.
  • Page 73 Troubleshooting Vitodens 200-W B2HA 112, 150 Service Fault Codes (continued) Fault code Detailed fault System behavior*1 Cause Corrective action on display code*2 Burner blocked Short circuit on boiler Check the boiler water water temperature temperature sensor sensor (see page 81).
  • Page 74 Troubleshooting Vitodens 200-W B2HA 112, 150 Service Fault Codes (continued) Fault code Detailed fault System behavior*1 Cause Corrective action on display code*2 No solar DHW heating Tank temperature Check temperature sensor % sensor % cable broken on solar control module.
  • Page 75 Troubleshooting Vitodens 200-W B2HA 112, 150 Service Fault Codes (continued) Fault code Detailed fault System behavior*1 Cause Corrective action on display code*2 Control mode without remote Communication error, Check connections, cable, control remote control Vitotrol coding address “A0” in “Heating heating circuit 2 circuit”...
  • Page 76 Troubleshooting Vitodens 200-W B2HA 112, 150 Service Fault Codes (continued) Fault code Detailed fault System behavior*1 Cause Corrective action on display Code*2 Control mode Input DE3 reports a Remove fault at appliance fault at extension EA1 concerned. Control mode without...
  • Page 77 Troubleshooting Vitodens 200-W B2HA 112, 150 Service Fault Codes (continued) Fault code Detailed fault System behavior*1 Cause Corrective action on display code*2 Burner blocked Fault, supply voltage Replace the control unit. 24 V Burner blocked Fault flame amplifier Replace control unit.
  • Page 78 Troubleshooting Vitodens 200-W B2HA 112, 150 Service Fault Codes (continued) Fault code Detailed fault System behavior*1 Cause Corrective action on display code*2 Burner in a fault mode At burner start, flame Check gas supply (gas pressure signal is missing or too and gas regulator).
  • Page 79 Troubleshooting Vitodens 200-W B2HA 112, 150 Service Fault Codes (continued) Fault code Detailed fault System behavior*1 Cause Corrective action on display code*2 Burner in fault mode Fan not at standstill Check the fan, the fan connecting cables and fan control. Check the fan control.

  • Page 80: Corrective Action

    Troubleshooting Vitodens 200-W B2HA 112, 150 Service Corrective Action (continued) Continuous boiler pump operation When the Vitodens 200 B2HA boiler is switched from a single boiler operation to a multi-boiler operation, coding addresses 30:0 may automatically reset to 30:3. This will result in the boiler pump operating continuously.

  • Page 81: Checking The Boiler Temperature Sensor And Fixed High Limit, Dhw Tank Temperature Sensor Or Flow Temperature Sensor For The Low Loss Header

    Troubleshooting Vitodens 200-W B2HA 112, 150 Service Corrective Action (continued) Checking the boiler temperature sensor and fixed high limit, DHW tank temperature sensor or flow temperature sensor for the low loss header 1. Boiler temperature sensor: Remove lead to boiler water temperature sensor §...
  • Page 82 Troubleshooting Vitodens 200-W B2HA 112, 150 Service Corrective Action (continued) Replacing the flow rate sensor Note: In the event of a fault, both sensors need to be replaced. 1. Drain the boiler on the heating water side. 2. Pull leads from flow rate sensor A.

  • Page 83: Extension Kit For Heating Circuit With Mixing Valve

    Troubleshooting Vitodens 200-W B2HA 112, 150 Service Corrective Action (continued) Extension kit for heating circuit with mixing valve Checking the setting of rotary selector S1: Heating circuit Rotary selector S1 setting The rotary selector on the PCB of the extension kit Heating circuit with mixing defines the assignment to the relevant heating circuit.

  • Page 84: External Extensions Am1 (Accessory)

    Function Description Vitodens 200-W B2HA 112, 150 Service External Extensions AM1 (accessory) Functions Select the output functions by means of the codes on One of the following circulation pumps can be connected the boiler control unit. to each of the connections A1 and A2:...

  • Page 85: Internal Extensions Ea1

    Function Description Vitodens 200-W B2HA 112, 150 Service Internal Extensions EA1 Legend Refer to main wiring diagram on page 90. Fuse Digital input 1 Digital input 2 Digital input 3 0 – 10 V 0 - 10 V input fÖ...
  • Page 86 Function Description Vitodens 200-W B2HA 112, 150 Service Internal Extensions EA1 (continued) Digital data inputs DE1 to DE3 Effect of the external demand function on the pumps The following functions can be connected alternatively: The effect on the internal circulation pump is selected in coding address 3F in the “General”...

  • Page 87: Control Functions

    Function Description Vitodens 200-W B2HA 112, 150 Service Control Functions External heating program changeover External blocking The “External heating program changeover” function is The “External blocking” and “External blocking and fault connected via input “EA1” in the EACB. message input” functions are connected via extension You can select which direction the heating program EA1.
  • Page 88 Function Description Vitodens 200-W B2HA 112, 150 Service Control Functions (continued) Venting program Reducing the heat-up time During the transition from operation with reduced During the venting program, the circulation pump will room temperature to operation with standard room be alternately switched on and off for 30 seconds temperature, the boiler water or supply temperature will respectively over a period of 20 minutes.
  • Page 89 Function Description Vitodens 200-W B2HA 112, 150 Service Control Functions (continued) Raising the reduced room temperature Allocating heating circuits to the remote control During operation with reduced room temperature, the The heating circuit allocation must be configured when reduced room setpoint temperature can be automatically commissioning the Vitotrol 200A or Vitotrol 300A.

  • Page 90: Wiring Diagram

    Additional Information Vitodens 200-W B2HA 112, 150 Service Wiring Diagram CAUTION WARNING DISCONNECT POWER BEFORE Label all wires prior to disconnection SERVICING BOILER. when servicing controls. Wiring errors can cause improper and dangerous operation. Verify proper operation If any of the original wires as after servicing.
  • Page 91 Additional Information Vitodens 200-W B2HA 112, 150 Service Wiring Diagram (continued) Legend Outdoor Temperature Sensor Supply Temperature Sensor/Low Loss Header Boiler Temperature Sensor/High Limit Sensor Boiler Temperature Sensor/High Limit Sensor DHW Temperature Sensor Ionization Electrode Flue Gas temperature Sensor Boiler Pump...

  • Page 92: Burner Program Sequence Of Operation

    Additional Information Vitodens 200-W B2HA 112, 150 Service Burner Program Sequence of Operation Phase 0: Stand-by Phase 6: Burner modulation operation or calibration Complete shutdown until the next call for heat. In this At the end of the flame stabilization period (4.5 seconds.),...

  • Page 93: Parts List

    Additional Information Vitodens 200-W B2HA 112, 150 Service Parts Lists Model No. Serial No. B2HA 112 Boiler 7510835 B2HA 150 Boiler 7510836 Ordering Replacement Parts: Please provide model no. from rating plate A and serial no. when ordering replacement parts. Order replacement components from your Viessmann distributor.
  • Page 94 Additional Information Vitodens 200-W B2HA 112, 150 Service Parts Lists (continued) Model No. Serial No. B2HA 112 Boiler 7510835 B2HA 150 Boiler 7510836 Ordering Replacement Parts: Please provide model no. from rating plate and serial no. when ordering replacement parts. Order replacement components from your Viessmann distributor.
  • Page 95 Additional Information Vitodens 200-W B2HA 112, 150 Service Parts Lists (continued) Model No. Serial No. B2HA 112 Boiler 7510835 B2HA 150 Boiler 7510836 Ordering Replacement Parts: Please provide model no. from rating plate and serial no. when ordering replacement parts. Order replacement components from your Viessmann distributor.
  • Page 96 Additional Information Vitodens 200-W B2HA 112, 150 Service Parts Lists (continued) Model No. Serial No. B2HA 112 Boiler 7510835 B2HA 150 Boiler 7510836 Ordering Replacement Parts: Please provide model no. from rating plate and serial no. when ordering replacement parts. Order replacement components from your Viessmann distributor.
  • Page 97 Additional Information Vitodens 200-W B2HA 112, 150 Service Parts Lists (continued) Model No. Serial No. B2HA 112 Boiler 7510835 B2HA 150 Boiler 7510836 Ordering Replacement Parts: Please provide model no. from rating plate and serial no. when ordering replacement parts. Order replacement components from your Viessmann distributor.

  • Page 98: Technical Data

    Additional Information Vitodens 200-W B2HA 112, 150 Service Technical Data Boiler Model No. B2HA 150*A Natural Gas / Liquid Propane Gas CSA input 113-399 113-530 33-117 33-155 CSA output *3 103-375 103-495 30-110 30-145 DOE/AHRI Gross output Net AHRI Rating *B 36.78...
  • Page 99 Measured flue gas temperature with a combustion air temperature of 68°F (20°C). Based on maximum input rate. Requires 1 inch (25 mm) tubing. See the Installation Instructions of the Vitodens 200-W, B2HA for details. For side wall vent installations (coaxial system): Do not exceed max.

  • Page 100: Maintenance Record

    Additional Information Vitodens 200-W B2HA 112, 150 Service Maintenance Record...

  • Page 101: Lighting And Operating Instructions

    Additional Information Vitodens 200-W B2HA 112, 150 Service 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.
  • Page 102 Vitodens 200-W B2HA 112, 150 Service...
  • Page 103 Vitodens 200-W B2HA 112, 150 Service...
  • Page 104 Vitodens 200-W B2HA 112, 150 Service...

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Vitodens 200-w b2ha 112Vitodens 200-w b2ha 150

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