Viessmann B1KA Installation And Service Instructions Manual
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Viessmann B1KA Installation And Service Instructions Manual

Wall-mounted, gas-fired condensing boilers on demand domestic hot water with combi boiler
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Installation and Service
Instructions
for use by heating contractor
Vitodens 100-W B1HA/B1KA
Models 26 to 125
Wall-Mounted, gas-fired condensing boilers
On demand domestic hot water with Combi boiler
Heating input: 21 to 125 MBH
6.2 to 36.6 kW
VITODENS
5784 568 - 13
01/2019
100-W
H
IMPORTANT
Read and save these instructions
for future reference.
Please file in Service Binder

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  • Page 1 Installation and Service Instructions for use by heating contractor Vitodens 100-W B1HA/B1KA Models 26 to 125 Wall-Mounted, gas-fired condensing boilers On demand domestic hot water with Combi boiler Heating input: 21 to 125 MBH 6.2 to 36.6 kW VITODENS 100-W ...

  • Page 2: Safety

    Safety Vitodens 100-W, B1HA/B1KA 26 to 125 Combi Installation/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: Table Of Contents

    Table of Contents Vitodens 100-W, B1HA/B1KA 26 to 125 Combi Installation/Service Page Safety Safety, Installation and Warranty Requirements ....2 Important Regulatory and Installation Requirements ..5 General Information About these Installation Instructions ......7 Applicability ..............8 Product Information ............8 Mechanical Room ............9 Dimensions Minimum Clearances ..........10...
  • Page 4 Table of Contents Vitodens 100-W, B1HA/B1KA 26 to 125 Combi Installation/Service Page Start-up, Inspection and Maintenance Necessary Tools ............43 Testing/analysis equipment ........43 Overview of Controls and Indicators ......43 Control and display elements ........ 43 Check Power Supply Connection ........43 Setup Menu Overview ..........44 Filling and Bleeding the Heating System .....44...

  • Page 5: Important Regulatory And Installation Requirements

    CSD-1 Field Testing of High Limit Switches for Vitodens boilers – where required by law. VIESSMANN IS NOT RESPONSIBLE FOR ANY DAMAGES THAT THE FOLLOWING TEST PROCEDURE MAY RESULT IN BY OVERHEATING THE SYSTEM. The Vitodens 100/200 boilers are equipped with flow switches that when activated disable or enable the burner to operate.
  • Page 6 Safety Vitodens 100-W, B1HA/B1KA 26 to 125 Combi Installation/Service Important Regulatory and Installation Requirements (continued) For installations on the Commonwealth of Massachusetts, the following modifications to NFPA-54 chapter 10 apply: Excerpt from 248 CMR 5-08: 2(a) For all side-wall horizontally vented gas fueled equipment installed in every dwelling, building or structure used...

  • Page 7: About These Installation Instructions

    Safety/ General Information Vitodens 100-W, B1HA/B1KA 26 to 125 Combi Installation/Service Important Regulatory and Installation Requirements (continued) The completeness and functionality of field supplied Working on the equipment electrical controls and components must be verified The installation, adjustment, service, and maintenance of by the heating contractor.

  • Page 8: Applicability

     heating circuits and the DHW tank or the DCW/DHW piping 3-way diverter valve  for the B1KA, see installation examples starting on page 24. Pressure relief valve  In the factory set condition, the Vitodens 100-W is set Diaphragm expansion vessel (B1KA only) ...

  • Page 9: Mechanical Room

    General Information Vitodens 100-W, B1HA/B1KA 26 to 125 Combi Installation/Service Mechanical Room During the early stages of new home design, we Installation area conditions recommend that proper consideration be given to Ensure ambient temperatures are higher than 32°F  constructing a separate mechanical room dedicated to (0°C) and lower than 104°F (40°C).

  • Page 10: Minimum Clearances

    Dimensions Vitodens 100-W, B1HA/B1KA 26 to 125 Combi Installation/Service Minimum Clearances Recommended minimum boiler clearances to combustibles Recommended minimum boiler service clearances Note:The Vitodens 100-W boiler has passed the zero inches vent clearance to combustibles testing requirements dictated by the boiler Harmonized Side Standard ANSI Z21.13.

  • Page 11: Boiler Dimensions

    G - For B1HA series, DHW tank heating supply 9e in. (250 mm) NPT ¾ in. (male thread) 1d in. (34 mm) - For B1KA combi, DHW, NPT ½ in. (male thread) in. (200 mm) H - For B1HA series, DHW tank heating return 3d in. (80 mm) NPT ¾...
  • Page 12 Dimensions Vitodens 100-W, B1HA/B1KA 26 to 125 Combi Installation/Service Boiler Dimensions (continued) Piping connections for Vitodens 100-W, B1HA series and B1KA Field supplied Legend - DHW tank heating supply for B1HA boilers Field supplied - DHW tank heating return for B1HA boilers...

  • Page 13: Boiler Mounting

    Dimensions Vitodens 100-W, B1HA/B1KA 26 to 125 Combi Installation/Service Boiler Mounting Boiler installation Following are the installation instructions for the mounting The Vitodens 100-W boiler can be wall-mounted on: bracket on each material. Skip to the installation - a brick/concrete wall instructions applicable to your installation requirements.
  • Page 14 Installation Vitodens 100-W, B1HA/B1KA 26 to 125 Combi Installation/Service Boiler Mounting (continued) Boiler mounting bracket installation on wood studs Install mounting bracket on wood studs as per illustration. Drill in. pilot holes to insert mounting bolts. Ensure that holes are located in the center of each wood stud.
  • Page 15 Installation Vitodens 100-W, B1HA/B1KA 26 to 125 Combi Installation/Service Boiler Mounting (continued) Mounting the boiler to the wall Note: Prior to installing the boiler verify that the minimum mounting clearances are met. 1. Mount boiler onto the mounting bracket, ensure the...
  • Page 16 The Vitodens 100-W, does not come with a mounting template. The wall location for the frame, mounting bracket and all vents must be field calculated. Vitodens 100-W, B1HA 26, 35, 94, 125 B1KA 35, 125 a *1 in. (mm) 45f (1160) b *1 in.

  • Page 17: Connections

    Connections Vitodens 100-W, B1HA/B1KA 26 to 125 Combi Installation/Service Boiler Connections Vent connections The Vitodens 100-W boiler comes with a preinstalled vent pipe adaptor (as shown). Run venting system, single-pipe, two-pipe or coaxial, through the side wall, roof or chimney, taking the shortest possible route and at a rising angle (min.

  • Page 18: Proper Piping Practice

    Connections Vitodens 100-W, B1HA/B1KA 26 to 125 Combi Installation/Service Boiler Connections (continued) Proper piping practice Support piping by proper suspension method. 2 imperfect threads Use moderate amount of dope Piping must not rest on or be supported by boiler. Leave 2 threads bare Gas connection and piping 1.

  • Page 19: Gas Piping Pressure Test

    Connections Vitodens 100-W, B1HA/B1KA 26 to 125 Combi Installation/Service Boiler Connections (continued) Gas connection and piping (continued) 1. Refer to current CAN/CSA B149.1 or 2 in Canada. In the United States, use the National Fuel Gas Code ANSI Z223.1/NFPA 54, as well as local codes for gas piping requirements and sizing.

  • Page 20: Heating Water Connections

    Connections Vitodens 100-W, B1HA/B1KA 26 to 125 Combi Installation/Service Boiler Connections (continued) Heating water connections 1. Thoroughly flush heating system (particularly before connecting the boiler to an existing system). 2. Connect boiler to the heating system. Note: Use an approved pipe sealant or teflon tape when connecting the installation fittings.

  • Page 21: Condensate Connection

    Connections Vitodens 100-W, B1HA/B1KA 26 to 125 Combi Installation/Service Boiler Connections (continued) Condensate connection The Vitodens 100-W boiler comes with a built-in condensate trap. An external trap is not required when connecting the field drain to flexible discharge tubing. Discharge tubing (field supplied) must be of 1 in. diameter.

  • Page 22: Safety Connections

    Connections Vitodens 100-W, B1HA/B1KA 26 to 125 Combi Installation/Service Safety Connections Installing safety devices on the boiler 1. Assemble the brass adaptor B, O-ring C, and retaining clip D to the boiler. 2. Apply sufficient amount of pipe sealant to adaptor B.

  • Page 23: Hot Water Temperature And System Pressure

    Connections Vitodens 100-W, B1HA/B1KA 26 to 125 Combi Installation/Service Safety Connections (continued) Hot water temperature and system pressure See page 44 for fill procedure. The boiler water temperature reading is constantly displayed during operation. The boiler water pressure reading is displayed on an...

  • Page 24: Installation Examples

    Connections Vitodens 100-W, B1HA/B1KA 26 to 125 Combi Installation/Service Installation Examples General Heating circuit pumps The schematics on the following pages are to be seen as Heating pumps with Vitodens 100-W are preinstalled. guidelines only. They further do not display all system varieties, safety devices, or concepts possible.

  • Page 25: Waterside Flow

    Vitodens 100-W, B1HA/B1KA 26 to 125 Combi Installation/Service Installation Examples (continued) Pressure drop (primary circuit) for Vitodens 100-W, B1HA 26, 35, 94, 125 and B1KA 35, 125 For sizing an on-site circulation system. Max. flow rate: 6.2 GPM (1400 L/h) Waterside flow (primary circuit) The Vitodens 100-W, B1HA/B1KA is designed for closed loop, forced circulation hot water heating systems only.

  • Page 26: Built-In Pump

    (continued) Built-in pump Grundfos UPS15-78 three speed heating circuit/DHW production pump for Vitodens 100-W B1HA 26, 35, 94, 125 and B1KA 35, 125 boilers (in the factory setting, the pump speed is preset to ‘speed three’) Speed Three Speed Two...

  • Page 27: B1Ha With One Heating Circuit

    Connections Vitodens 100-W, B1HA/B1KA 26 to 125 Combi Installation/Service Installation Examples (continued) Vitodens 100-W, B1HA 26, 35, 94, 125 with one heating circuit Legend Note: The use of a low-loss header is recommended if the Air vent water flow rate is less than 1.7 GPM (400 L/h) or PRV Pressure relief valve more than 6.2 GPM (1400 L/h).

  • Page 28: B1Ha With One Heating Circuit, Dhw Tank And Llh

    Connections Vitodens 100-W, B1HA/B1KA 26 to 125 Combi Installation/Service Installation Examples (continued) Vitodens 100-W, B1HA 26, 35, 94, 125 with... DHW storage tank low-loss header one heating circuit Legend AV Air vent Note: The use of a low-loss header is recommended if the PRV Pressure relief valve water flow rate is less than 1.7 GPM (400 L/h) or...

  • Page 29: B1Ha With One Heating Circuit And Dhw Tank

    Connections Vitodens 100-W, B1HA/B1KA 26 to 125 Combi Installation/Service Installation Examples (continued) Vitodens 100-W, B1HA 26, 35, 94, 125 with DHW storage tank and one heating circuit Legend Note: The use of a low-loss header is recommended if the Air vent PRV Pressure relief valve water flow rate is less than 1.7 GPM (400 L/h) or...

  • Page 30: B1Ka With One Heating Circuit

    Connections Vitodens 100-W, B1HA/B1KA 26 to 125 Combi Installation/Service Installation Examples (continued) Vitodens 100-W, B1KA 35, 125 with one heating circuit Legend Note: The use of a low-loss header is recommended if the Air vent water flow rate is less than 1.7 GPM (400 L/h) or Pressure relief valve (boiler) more than 6.2 GPM (1400 L/h).

  • Page 31: B1Ka With One Heating Circuit And Llh

    Connections Vitodens 100-W, B1HA/B1KA 26 to 125 Combi Installation/Service Installation Examples (continued) Vitodens 100-W, B1KA 35, 125 with... low-loss header one heating circuit Legend Note: The use of a low-loss header is recommended if the Air vent water flow rate is less than 1.7 GPM (400 L/h) or Pressure relief valve (boiler) more than 6.2 GPM (1400 L/h).

  • Page 32: B1Ka With One Heating Circuit Without Llh

    Connections Vitodens 100-W, B1HA/B1KA 26 to 125 Combi Installation/Service Installation Examples (continued) Vitodens 100-W, B1KA 35, 125 with one heating circuit without LLH Legend Note: The use of a low-loss header is recommended if the Air vent water flow rate is less than 1.7 GPM (400 L/h) or Pressure relief valve (boiler) more than 6.2 GPM (1400 L/h).

  • Page 33: Boiler In Heating/Cooling Application

    Connections Vitodens 100-W, B1HA/B1KA 26 to 125 Combi Installation/Service Installation Examples (continued) Boiler in heating/cooling application Legend A Heating/Cooling unit IMPORTANT B Spring-loaded flow check valve C Circulation pump Viessmann strongly suggests that the valves pictured D Expansion tank above be labelled “v1” and “v2”.

  • Page 34: Boiler With Low Water Cut-Off (Remote Mounted, Field Supplied)

    Connections Vitodens 100-W, B1HA/B1KA 26 to 125 Combi Installation/Service Installation Examples (continued) A low water cut-off may be required by local codes. Boiler with low water cut-off (remote-mounted, field supplied) Do not install an isolation valve between boiler and low water cut-off.

  • Page 35: Neutralization Unit

    Connections Vitodens 100-W, B1HA/B1KA 26 to 125 Combi Installation/Service Neutralization Unit Accessories for the Vitodens 100-W Neutralization Unit for Single-Boiler Applications with neutralizing granulate for Vitodens 100-W, B1HA 26, 35, 94, 125 and B1KA 35, 125 Part No. 7134 231...

  • Page 36: Accessing Electrical Connections

    Control Connections Vitodens 100-W, B1HA/B1KA 26 to 125 Combi Installation/Service Accessing Electrical Connections Removing the front cover 1. Loosen retaining screws, screws are captive and do not need to be fully removed. 2. Remove the front panel. Rotating the control unit and opening the power/pump module 1.

  • Page 37: Power Supply 120Vac, 60 Hz, 1Ph

    Control Connections Vitodens 100-W, B1HA/B1KA 26 to 125 Combi Installation/Service Accessing Electrical Connections (continued) Power supply 120VAC, 60 HZ, 1PH Legend A Power supply 120VAC, 60 HZ, 1PH (power cord included) B Accessories 120VAC output Location of terminal block and temperature sensor connections...

  • Page 38: Connecting Viessmann Dhw Tank Temperature Sensor On B1Ha Only

    Control Connections Vitodens 100-W, B1HA/B1KA 26 to 125 Combi Installation/Service Accessing Electrical Connections (continued) Connecting Viessmann DHW tank temperature sensor on B1HA only Legend Viessmann DHW tank temperature sensor (supplied) Viessmann DHW tank temperature sensor connections (factory installed) Legend % Viessmann DHW tank temperature sensor (supplied) Note: see wiring diagram on page 76.

  • Page 39: Connecting A Field Supplied Tank Temperature Controller On B1Ha Only (E.g. Honeywell Aquastat Or Others)

    Control Connections Vitodens 100-W, B1HA/B1KA 26 to 125 Combi Installation/Service Accessing Electrical Connections (continued) Connecting a field supplied tank temperature controller on B1HA only (e.g. Honeywell Aquastat or others) Legend 1. Cut off and discard the 2 red connectors labelled ‘5’.

  • Page 40: Room Thermostat

    Control Connections Vitodens 100-W, B1HA/B1KA 26 to 125 Combi Installation/Service Accessing Electrical Connections (continued) Connecting a room thermostat (dry contacts) Factory Connect Room Thermostat installed terminal block (Dry Contact) Legend A Room thermostat dry contact (field supplied) Boiler control base...

  • Page 41: Connecting The Outdoor Temperature Sensor

    Control Connections Vitodens 100-W, B1HA/B1KA 26 to 125 Combi Installation/Service Accessing Electrical Connections (continued) Connecting the outdoor temperature sensor Factory installed Connection must be made on terminal block terminals 1 and 2 for one of the three options shown on page 40.

  • Page 42: Closing The Control Unit

    Control Connections Vitodens 100-W, B1HA/B1KA 26 to 125 Combi Installation/Service Accessing Electrical Connections (continued) Closing the control unit 1. Connect the electrical accessories as per project design. 2. Secure all cables with strain reliefs. 3. Flip control upward and lock into position.

  • Page 43: Start-Up, Inspection And Maintenance

    J Commissioning setting active (contractors only) K DHW comfort function active (only for B1KA) L Current burner output (each bar = 20% *) M DHW comfort function not active (only for B1KA) N Service setting active (contractors only) O Burner in operation...

  • Page 44: Setup Menu Overview

    Start-up, Inspection and Maintenance Vitodens 100-W, B1HA/B1KA 26 to 125 Combi Installation/Service Setup Menu Overview Item # Function Setting Options Description Default Setting Filling 0 - Fill mode OFF After pressing ‘OK’ the filling function is active. This 1 - Fill mode ON (see page 44) process will automatically terminate after 30 min.
  • Page 45 Start-up, Inspection and Maintenance Vitodens 100-W, B1HA/B1KA 26 to 125 Combi Installation/Service Filling and Bleeding the Heating System (continued) 1. Open system isolation valves (if installed). Note: Before filling the heating system with water, check that all necessary flow check valves are installed.

  • Page 46: Select Appropriate Gas Type

    Start-up, Inspection and Maintenance Vitodens 100-W, B1HA/B1KA 26 to 125 Combi Installation/Service Select Appropriate Gas Type The Vitodens 100-W boiler is for use with gases whose characteristics fall within the following ranges. Do not use any other types of gas.
  • Page 47 Start-up, Inspection and Maintenance Vitodens 100-W, B1HA/B1KA 26 to 125 Combi Installation/Service Measure Static Pressure and Running Pressure (continued) 8. All measurements must be made under high-fire conditions. Note: Use suitable measuring instruments calibrated with a minimum resolution of 0.04 “w.c. for measuring the running pressure.

  • Page 48: Checking The Co 2 Content/Relay Tests

    Start-up, Inspection and Maintenance Vitodens 100-W, B1HA/B1KA 26 to 125 Combi Installation/Service Checking the CO Content/Relay Tests The Vitodens 100-W is factory-set for natural gas. During 1. Connect a flue gas analyzer at flue gas port A on commissioning or maintenance, the CO and CO have to the boiler flue connection.

  • Page 49: High Altitude Setting

    Start-up, Inspection and Maintenance Vitodens 100-W, B1HA/B1KA 26 to 125 Combi Installation/Service High Altitude Setting To match the burner output for high altitude setting. 1. Tap MODE. 2. Tap / until CONFI flashes. 3. Tap OK to confirm. "P" is displayed in left hand display area. The right hand display area flashes.

  • Page 50: Configuring Dhw Tank Sensor Input

    (The factory setting in °F) Finally, tap OK. Settings have been applied. Setting the DHW Comfort Function Only possible for B1KA boiler. The comfort function makes DHW available faster at the selected set DHW temperature by keeping the DHW heat exchanger preheated.

  • Page 51: Clock Natural Gas Meter

    Start-up, Inspection and Maintenance Vitodens 100-W, B1HA/B1KA 26 to 125 Combi Installation/Service Clock Natural Gas Meter Clock natural gas meter to verify input IMPORTANT 1. Ensure all other gas equipment served by the meter is A boiler under fired by 5% is still acceptable.

  • Page 52: Check Venting System For Leaks

    Start-up, Inspection and Maintenance Vitodens 100-W, B1HA/B1KA 26 to 125 Combi Installation/Service Check Venting System for Leaks (circular air gap measurement) For sealed combustion, coaxial vent only Viessmann strongly recommends that the heating contractor perform a simplified leak test during boiler start-up.

  • Page 53: Removing The Burner

    Start-up, Inspection and Maintenance Vitodens 100-W, B1HA/B1KA 26 to 125 Combi Installation/Service Removing the Burner 1. Switch the burner OFF (shut off main service switch). 2. Shut off the gas supply. 3. Pull power cables from fan motor A, gas valve B and electrode block C.

  • Page 54: Check And Adjust Ignition And Ionization Electrodes

    Start-up, Inspection and Maintenance Vitodens 100-W, B1HA/B1KA 26 to 125 Combi Installation/Service Check and Adjust Ignition and Ionization Electrodes 1. Check ignition and ionization electrode block for wear, contamination, warping or cracked insulation. 2. Clean electrodes with a small brush or emery paper.

  • Page 55: Check Neutralization Unit

    Start-up, Inspection and Maintenance Vitodens 100-W, B1HA/B1KA 26 to 125 Combi Installation/Service Check Neutralization Unit (if applicable) 1. Check the pH value of the condensate with a pH measuring strip. If the pH value is less than 6.5, replace granulate.

  • Page 56: Check Diaphragm Expansion Tank And System Pressure

    Start-up, Inspection and Maintenance Vitodens 100-W, B1HA/B1KA 26 to 125 Combi Installation/Service Check Diaphragm Expansion Tank and System Pressure Perform check on the system when cold. 1. Drain boiler/system and reduce pressure until the manometer reading is “0”. 2. If the nitrogen pressure of the pre-charged expansion...

  • Page 57: Install Burner

    Start-up, Inspection and Maintenance Vitodens 100-W, B1HA/B1KA 26 to 125 Combi Installation/Service Reinstall Burner 1. Fit burner and tighten 4 T-30 screws A diagonally to a torque of 35 lb.in (4 Nm). 2. Insert new supplied gasket and tighten the fitting B on the gas connection pipe to a torque of 132 lb.in (15 Nm).

  • Page 58: Troubleshooting

    Troubleshooting Vitodens 100-W, B1HA/B1KA 26 to 125 Combi Installation/Service Troubleshooting Steps 1. Establish fault message or diagnose behavior of system. Diagnosis 2. Look for corresponding cause of fault in the diagnostics table. 3. Find corrective measures in the table. 4. Perform corrective measures (page 58 to 61).

  • Page 59: Diagnosis

    Troubleshooting Vitodens 100-W, B1HA/B1KA 26 to 125 Combi Installation/Service Diagnosis Sequence of operation and potential faults during each start-up cycle display action Increase set value and Control unit issues a heat ensure heat is drawn off demand Fan starts After approx. 1 min, fault 9...
  • Page 60 Troubleshooting Vitodens 100-W, B1HA/B1KA 26 to 125 Combi Installation/Service Diagnosis (continued) Diagnostics table: Faults with fault display on control unit Fault code in System Cause Corrective measures display window characteristics* Burner blocked CO limiter (if installed) has Check the heating system. Remove responded.
  • Page 61 Troubleshooting Vitodens 100-W, B1HA/B1KA 26 to 125 Combi Installation/Service Diagnosis (continued) Diagnostics table: Faults with fault display on control unit (continued) Fault code in System Cause Corrective measures display window characteristics* Burner in fault mode Fault in safety chain Check the fixed high limit and connecting cables (see page 66).

  • Page 62: Boiler Connection

    Troubleshooting Vitodens 100-W, B1HA/B1KA 26 to 125 Combi Installation/Service Boiler Connection Remove front panel 1. Loosen retaining screws, screws are captive and do not need to be fully removed. 2. Remove the front panel. Start-up and Maintenance Check boiler temperature sensor 1.
  • Page 63 Troubleshooting Vitodens 100-W, B1HA/B1KA 26 to 125 Combi Installation/Service Boiler Connection (continued) Check outdoor temperature sensor 1. Disconnect cables from outdoor sensor. 2. Measure resistance of the outdoor sensor and compare with resistance / outdoor sensor curve shown below. 3. If the value measured differs significantly, replace the sensor.
  • Page 64 Troubleshooting Vitodens 100-W, B1HA/B1KA 26 to 125 Combi Installation/Service Boiler Connection (continued) Setting the heating curve Frost protection function Heating curves illustrate the relationship between the out- The frost protection function requires an outside door temperature, the set room temperature and the boiler temperature sensor to be connected.
  • Page 65 Troubleshooting Vitodens 100-W, B1HA/B1KA 26 to 125 Combi Installation/Service Boiler Connection (continued) Adjusting the heating curve set point Parameter default setting is 20 (or 68 if display is converted to °F). Setting the set point 1. Tap / . The set parameter flashes and r will be displayed.
  • Page 66 Troubleshooting Vitodens 100-W, B1HA/B1KA 26 to 125 Combi Installation/Service Boiler Connection (continued) Check fixed high limit If the burner control unit cannot be reset after a fault shutdown ( ), even though the boiler water temperature is below approx. 203°F (95°C), check the fixed high limit.
  • Page 67 Troubleshooting Vitodens 100-W, B1HA/B1KA 26 to 125 Combi Installation/Service Boiler Connection (continued) Check Control unit fuse 1. Switch off main power supply. 2. Flip down control unit. 3. Remove cover A. 4. Check fuse F4 T 2.5A (slow blow). Replacements fuses are available from Viessmann.
  • Page 68 Troubleshooting Vitodens 100-W, B1HA/B1KA 26 to 125 Combi Installation/Service Boiler Connection (continued) Replacing the flow limiter (B1KA only) 1. Drain or isolate the DHW system and shut off DCW. 2. Undo screws A. 3. Remove the cap B. 4. Remove faulty flow limiter C.

  • Page 69: Additional Information

    Additional Information Vitodens 100-W, B1HA/B1KA 26 to 125 Combi Installation/Service Electrical Connections to the Terminal Strip for Accessories Follow the installation instructions of field supplied operating controls. What is OpenTherm (OT)? The OpenTherm (OT) protocol is a point-to-point communication system, which connects a boiler with a room controller or other devices.

  • Page 70: Technical Data

    Vitodens 100-W, B1HA/B1KA 26 to 125 Combi Installation/Service Technical Data Call for heat priority logic table The Vitodens 100-W, B1HA /B1KA boilers has several operating control options. The following table provides the priority levels of each of the different operating controllers. Priority Control operating...
  • Page 71 Additional Information Vitodens 100-W, B1HA/B1KA 26 to 125 Combi Installation/Service Technical Data (continued) Standard heating boiler Boiler Model No. B1HA 26, 94 B1HA 35, 125 B1KA 35, 125 CSA input Natural gas (NG) 21-94 21-125 21-125 6.2-27.5 6.2-36.6 6.2-36.6 CSA input Liquid propane Gas (LPG)
  • Page 72 Additional Information Vitodens 100-W, B1HA/B1KA 26 to 125 Combi Installation/Service Technical Data (continued) Standard heating boiler (continued) Boiler Model No. B1HA 26, 94 B1HA 35, 125 B1KA 35, 125 NPTM (male) Gas supply connection c in. c in. c in.
  • Page 73 Additional Information Vitodens 100-W, B1HA/B1KA 26 to 125 Combi Installation/Service Technical Data (continued) B1KA on demand hot water operation Boiler Model No. B1KA 35, 125 Max. Input NG and LPG (DHW production only) 43.7 Max. boiler temperature (during DHW production) ºF (ºC)

  • Page 74: Burner Program Sequence Of Operation

    Additional Information Vitodens 100-W, B1HA/B1KA 26 to 125 Combi Installation/Service Burner Program Sequence of Operation Call for heat Fan control Fan required >1500 rpm >1500 rpm signal Ignition Combination gas valve Start-up and Maintenance Flame signal min. 4.2 s Sequence time max.
  • Page 75 Additional Information Vitodens 100-W, B1HA/B1KA 26 to 125 Combi Installation/Service Burner Program Sequence of Operation (continued) Phase 7: Forced low-fire Phase 0: Stand by The controller will go into low-fire until required Complete shutdown until the next call for heat.

  • Page 76: B1Ha 26, 35, 94, 125 Wiring Diagram

    Additional Information Vitodens 100-W, B1HA/B1KA 26 to 125 Combi Installation/Service B1HA 26, 35, 94, 125 Wiring Diagram Legend A Ignition/ionization B Room thermostat (dry contact) or WARNING OpenTherm (OT) Interface input DISCONNECT POWER BEFORE SERVICING BOILER. C Outdoor Temperature Sensor (OTS)

  • Page 77: B1Ka 35, 125 Wiring Diagram

    Additional Information Vitodens 100-W, B1HA/B1KA 26 to 125 Combi Installation/Service B1KA 35, 125 Wiring Diagram Legend A Ignition/ionization WARNING B Room thermostat (dry contact) or OpenTherm (OT) Interface input DISCONNECT POWER BEFORE SERVICING BOILER. C Outdoor Temperature Sensor (OTS) CAUTION...

  • Page 78: Parts List

    Additional Information Vitodens 100-W, B1HA/B1KA 26 to 125 Combi Installation/Service Parts List Model No. Serial No. B1HA 26, 94 Boiler 7560853 B1HA 35, 125 Boiler 7560854 Ordering Parts: Please provide Serial Number A when ordering replacement parts. Order replacement components from your Viessmann distributor.
  • Page 79 Additional Information Vitodens 100-W, B1HA/B1KA 26 to 125 Combi Installation/Service Parts List (continued) Model No. Serial No. B1KA 35, 125 Boiler 7560855 Ordering Parts: Please provide Serial Number A when ordering replacement parts. Order replacement components from your Viessmann distributor.
  • Page 80 Additional Information Vitodens 100-W, B1HA/B1KA 26 to 125 Combi Installation/Service Parts List (continued) Model No. Serial No. B1HA 26, 94 Boiler 7560853 B1HA 35, 125 Boiler 7560854 B1KA 35, 125 Boiler 7560855 Parts for Main Enclosure Assembly 0001 Cover panel, boiler...
  • Page 81 Additional Information Vitodens 100-W, B1HA/B1KA 26 to 125 Combi Installation/Service Parts List (continued) Model No. Serial No. B1HA 26, 94 Boiler 7560853 B1HA 35, 125 Boiler 7560854 B1KA 35, 125 Boiler 7560855 Parts for Boiler Assembly 0001 Gasket for flue gas, DN60...
  • Page 82 Additional Information Vitodens 100-W, B1HA/B1KA 26 to 125 Combi Installation/Service Parts List (continued) Model No. Serial No. B1HA 26, 94 Boiler 7560853 B1HA 35, 125 Boiler 7560854 B1KA 35, 125 Boiler 7560855 Parts for Burner Assembly 0001 Burner gasket, 187x5.5 mm...
  • Page 83 Additional Information Vitodens 100-W, B1HA/B1KA 26 to 125 Combi Installation/Service Parts List (continued) Model No. Serial No. B1HA 26, 94 Boiler 7560853 B1HA 35, 125 Boiler 7560854 Parts for Hydraulic Assembly 0001 Connection pipe for heating return 0002 Clip, d=10 (set of 5)
  • Page 84 Additional Information Vitodens 100-W, B1HA/B1KA 26 to 125 Combi Installation/Service Parts List (continued) Model No. Serial No. B1KA 35, 125 Boiler 7560855 Parts for Hydraulic Assembly 0001 Connection pipe for heating return 0002 Clip, d=10 (set of 5) 0003 Clip, d=8 (set of 5)
  • Page 85 Additional Information Vitodens 100-W, B1HA/B1KA 26 to 125 Combi Installation/Service Parts List (continued) Model No. Serial No. B1HA 26, 94 Boiler 7560853 B1HA 35, 125 Boiler 7560854 Parts for Pumping Block Assembly 0001 Air vent 0002 O-ring, 34 x 3 mm (5 pieces)
  • Page 86 Additional Information Vitodens 100-W, B1HA/B1KA 26 to 125 Combi Installation/Service Parts List (continued) Model No. Serial No. B1KA 35, 125 Boiler 7560855 Parts for Combi Block Assembly 0001 Air vent 0002 O-ring 34x3 mm (5 pieces) 0003 O-ring 24.7x3.6 mm (5 pieces)
  • Page 87 Additional Information Vitodens 100-W, B1HA/B1KA 26 to 125 Combi Installation/Service Parts List (continued) Model No. Serial No. B1HA 26, 94 Boiler 7560853 B1HA 35, 125 Boiler 7560854 B1KA 35, 125 Boiler 7560855 Parts for Control Assembly 0001 Control console cover...
  • Page 88 Additional Information Vitodens 100-W, B1HA/B1KA 26 to 125 Combi Installation/Service Parts List (continued) Model No. Serial No. B1HA 26, 94 Boiler 7560853 B1HA 35, 125 Boiler 7560854 B1KA 35, 125 Boiler 7560855 Other Parts 0001 Touch-up spray paint “Vitowhite” 0002 Touch-up paint stick “Vitowhite”...

  • Page 89: Installation Fittings

    Additional Information Vitodens 100-W, B1HA/B1KA 26 to 125 Combi Installation/Service Installation Fittings Model No. Serial No. B1HA 26, 94 Boiler 7560853 B1HA 35, 125 Boiler 7560854 B1KA 35, 125 Boiler 7560855 Ordering Parts: Please provide Serial Number A when ordering replacement parts. Order replacement components from your Viessmann distributor.

  • Page 90: Maintenance Record

    Additional Information Vitodens 100-W, B1HA/B1KA 26 to 125 Combi Installation/Service Maintenance Record...

  • Page 91: Lighting And Operating Instructions

    Additional Information Vitodens 100-W, B1HA/B1KA 26 to 125 Combi Installation/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 92 Vitodens 100-W, B1HA/B1KA 26 to 125 Combi Installation/Service Scan for digital copy of this document...

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