Viessmann Vitodens 100-W WB1B Series Installation And Service Instructions Manual
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Viessmann Vitodens 100-W WB1B Series Installation And Service Instructions Manual

Vitodens 100-w wb1b series wall-mounted, gas-fired condensing boiler with optional on demand hot water combiplus kit
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See also: Service Maintenance Manual
Installation and Service
Instructions
for use by heating contractor
Vitodens 100-W
WB1B Series
Wall-Mounted, gas-fired condensing boiler
with optional on demand hot water CombiPLUS Kit
Heating input
37 to 118 MBH
10.8 to 34.5 kW
VITODENS 100-W
Vitodens 100-W, WB1B (with pre-installed coaxial vent pipe adaptor)
and with CombiPLUS Kit installed.
5600 332 v1.3 08/2012
IMPORTANT
Read and save these instructions
for future reference.
Please file in Service Binder

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Summary of Contents for Viessmann Vitodens 100-W WB1B Series

  • Page 1 Installation and Service Instructions for use by heating contractor Vitodens 100-W WB1B Series Wall-Mounted, gas-fired condensing boiler with optional on demand hot water CombiPLUS Kit Heating input 37 to 118 MBH 10.8 to 34.5 kW VITODENS 100-W IMPORTANT Read and save these instructions for future reference.

  • Page 2: Safety

    For information pertaining to inhabitants and destructive to venting and chimney requirements, Viessmann equipment. please see section entitled “Venting Connection”. All products of For a listing of chemicals which combustion must be safely vented cannot be stored in or near the to the outdoors.

  • Page 3: Table Of Contents

    Table of Contents Vitodens 100-W, WB1B Installation & Service Page Safety, Installation and Warranty Requirements....2 Safety Important Regulatory and Installation Requirements..5 About these Installation Instructions......6 General Information Applicability..............7 Product Information.............7 Mechanical Room............8 Before Set-up.............9 Minimum Clearances..........10 Dimensions CombiPLUS Installation Options........10 Preparing the Connections..........11 Connections overview..........11...
  • Page 4 Table of Contents Vitodens 100-W, WB1B Installation & Service Page Connections (continued) Installation Examples..........36 General..............36 Clearances............36 Pressure drop of Vitodens 100-W......36 Typical system flow rates........36 Heating circuit pumps..........36 CombiPLUS Built-in Pump........37 System layout 1 to 4..........38 Vitodens and CombiPLUS Layout.......44 Boiler in heating/cooling application......47 Boiler with low water cut-off (remote mounted, field supplied)..48 Low-loss header.............49...

  • Page 5: Important Regulatory And Installation Requirements

    CAN/ the system operator/ultimate owner where the CSA-B149.1 or .2 Installation Codes for Gas Burning literature can be found. Contact Viessmann for Appliances for Canada. For U.S. installations use the additional copies.

  • Page 6: About These Installation Instructions

    Leave all literature at the installation site and advise Technical literature the system operator/ultimate owner where the Literature for the Vitodens boiler: literature can be found. Contact Viessmann for - Technical Data Manual additional copies. - Installation and Service Instructions...

  • Page 7: Applicability

    General Information Vitodens 100-W, WB1B Installation & Service Applicability IMPORTANT Note: Check the boiler rating plate on the Vitodens 100-W, The boiler serial number must be provided when ordering models WB1B-26 or WB1B-35 to ensure it states replacement parts. Both the 16-digit serial number bar compatibility with the CombiPLUS kit.

  • Page 8: Mechanical Room

    General Information Vitodens 100-W, WB1B Installation & Service Mechanical Room During the early stages of new home design, we WARNING recommend that proper consideration be given to constructing a separate mechanical room dedicated to If you notice fire coming from the appliance, call the gas- or oil-fired equipment including domestic hot water fire department immediately! Do not attempt to storage tanks.

  • Page 9: Before Set-Up

    General Information Vitodens 100-W, WB1B Installation & Service Mechanical Room (continued) Installation area conditions Sources of combustion and ventilation air contaminants. WARNING Areas likely to contain contaminants: - New building construction Incorrect ambient conditions can lead to damage to - Swimming pools the heating system and put safe operation at risk.

  • Page 10: Dimensions

    Venting System for details. CombiPLUS Installation Options Shown is the distance between the boiler and CombiPLUS with Viessmann supplied 7” flex piping connection fittings. Note: The maximum distance between Shown is the maximum distance between the boiler the boiler and the CombiPLUS and CombiPLUS using field supplied fittings and pipes.

  • Page 11: Preparing The Connections

    Dimensions Vitodens 100-W, WB1B Installation & Service Preparing the Connections Note: Use an approved pipe sealant or teflon tape when connecting the following installation fittings. Connections overview This section is an overview only! Refer to subsequent sections for detailed information on individual piping connections.

  • Page 12: Dimensions Overview Without Bottom Piping Connections

    Dimensions Vitodens 100-W, WB1B Installation & Service Preparing the Connections (continued) Dimensions overview without bottom piping connections Front view Side view Top view Connections Vitodens 100-W, WB1B 26, 35 When preparing gas, water and electrical Legend connections in the field, see section entitled Connections “Wall Mounting”...

  • Page 13: Combiplus Connections And Piping Connections

    C System water supply, NPTM ¾” (male thread) D System water return, NPTM ¾” (male thread) E DHW, NPTM ½” (male thread) Front view F DCW, NPTM ½” (male thread) Shown is the distance between the boiler and CombiPLUS with Viessmann supplied 7” flex piping connection fittings.

  • Page 14: Piping Connections For Vitodens 100W, Wb1B-26 And -35 (Factory Supplied)

    Dimensions Vitodens 100-W, WB1B Installation & Service Preparing the Connections (continued) This section is an overview only! Refer to subsequent sections for detailed information on individual piping connections. Piping connections for Vitodens 100-W, WB1B 26 and 35 (factory supplied) Legend Boiler water return, ¾”...

  • Page 15: Wall Mounting

    Dimensions Vitodens 100-W, WB1B Installation & Service Wall Mounting Boiler and CombiPLUS installation Following are the installation instructions for the mounting The Vitodens 100-W boiler and CombiPLUScan be bracket on each material. Skip to the installation wall-mounted on: instructions applicable to your installation requirements. - a brick/concrete wall - wood studs Installation of mounting bracket on brick/concrete wall:...

  • Page 16: Boiler Mounting Bracket And Combiplus Installation

    Dimensions Vitodens 100-W, WB1B Installation & Service Wall Mounting (continued) Boiler mounting bracket and CombiPLUS installation Installation on wood studs Install mounting bracket and CombiPLUS on wood studs as per illustration. Drill ” pilot holes to insert mounting bolts. Ensure that holes are located in the center of each wood stud.

  • Page 17: Mounting Vitodens 100-W Boiler

    Dimensions/Connections Vitodens 100-W, WB1B Installation & Service Wall Mounting (continued) Mounting Vitodens 100-W boiler Note: Prior to installing the boiler, if a CombiPLUS kit is also required, verify that the minimum mounting clearances are met. 1. Loosen the screws at the bottom of the boiler; do not remove completely.

  • Page 18: Connections Boiler Connections

    Connections Vitodens 100-W, WB1B Installation & Service Boiler Connections (continued) Proper piping practice 2 imperfect threads Use moderate amount of dope Support piping by proper suspension method. 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, WB1B 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

    Test pressure........4 bar (60 psig) IMPORTANT Damage resulting from pressure exceeding those values stated is not covered by Viessmann warranty. Use a two-hand wrench method when tightening fittings or piping onto the boiler connectors. Use one wrench to prevent the boiler pipes from twisting and the second wrench to tighten the fitting or piping.

  • Page 21: Condensate Connection

    Connections Vitodens 100-W, WB1B 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” diameter. Use CPVC, PVC or other material approved by codes listed below.

  • Page 22: Safety Connections And Pressure Testing

    Connections Vitodens 100-W, WB1B Installation & Service Safety Connections and Pressure Testing Installing safety devices on the boiler 1. Remove loosely pre-assembled combination pressure relief valve and drain valve assembly. 2. Apply sufficient amount of pipe sealant to both ends of all pipe fittings B, C, and E, and install onto tees D, F.

  • Page 23: Performing Pressure Test On The Boiler

    Connections Vitodens 100-W, WB1B Installation & Service Safety Connections and Pressure Testing (continued) Performing pressure test on the boiler Hot water temperature and system pressure The boiler must be leak tested before being placed in operation. Before boiler is connected to piping or electrical power supply, it must be hydrostatically pressure tested.

  • Page 24: Preparing The Combiplus Connections

    Connections Vitodens 100-W, WB1B Installation & Service Preparing the CombiPLUS Connections 15c” ” (400) (355) 7 / 16 ” (1280) when using 7” flex pipe. ” (1382) when using 12” flex pipe. 7 / 16 ” (291) when using 7” flex pipe. ”...

  • Page 25: Combiplus Preparations For All Vitodens

    Connections Vitodens 100-W, WB1B Installation & Service CombiPLUS Preparations for all Vitodens Installing the extension fitttings B and system connections D, E, F and G to the CombiPLUS A. 1. Using a Phillips screw driver, remove all four screws 3. 3. holding the CombiPLUS A cover and set aside.

  • Page 26: Additional Combiplus Prearations For Vitodens 100-W, Wb1B-26 Only

    Connections Vitodens 100-W, WB1B Installation & Service Additional CombiPLUS Preparations for Vitodens 100-W, WB1B-26 only The CombiPLUS A flow restrictor must be exchanged when used with the Vitodens 100-W, WB1B-26. 1. Remove the two 4 mm hex head cap screws from the flow tube cap and set aside.

  • Page 27: Mounting The Combiplus

    Connections Vitodens 100-W, WB1B Installation & Service Mounting the CombiPLUS Prepare the wall and mount the CombiPLUS A using the supplied template and mounting hardware. 1. Pull the bottom of the boiler away from the wall approximately 1/2” (12 mm) and slide the top of the CombiPLUS mounting template T between the wall and the boiler.

  • Page 28: Connecting The Combiplus Piping

    Connections Vitodens 100-W, WB1B Installation & Service Connecting the CombiPLUS Piping Connecting the CombiPLUS A using the supplied piping, adaptors and mounting hardware. 1. Install the adaptors N to the tees at the bottom of the boiler. Install the flex pipes L or M to the adaptors N.

  • Page 29: Connecting The Combiplus Wiring

    Connections Vitodens 100-W, WB1B Installation & Service Connecting the CombiPLUS Wiring Connecting the CombiPLUS A wiring using the supplied control and pump cables. 1. Remove both standard knock-outs from the rear right side of the CombiPLUS A. Route the control cable Q through one knock-out and the pump cable R through the other.

  • Page 30: Accessing The Boiler Controls

    Connections Vitodens 100-W, WB1B Installation & Service Accessing the Boiler Controls Removing the boiler and power pump module covers to provide access to the power pump module. 1. Loosen the boiler housing captive screws (located at the bottom front of the boiler). Remove the cover by pulling straight out from the boiler and set aside.

  • Page 31: Preparing The Boiler Power Pump Module

    Connections Vitodens 100-W, WB1B Installation & Service Preparing the Boiler Power Pump Module Preparing the power pump module for connection to the CombiPLUS wiring. When handling static sensitive components, avoid damage caused by static discharge by following Electro-Static Discharge safety procedures.

  • Page 32: Connecting The Combiplus Cables To The Power Pump Module Of The Boiler

    Connections Vitodens 100-W, WB1B Installation & Service Connecting the CombiPLUS Cables to the Power Pump Module of the Boiler Connecting the CombiPLUS cables to the power pump module. 1. Route the control cable Q through the fourth hole of the power pump module base and route the pump cable R through the second hole of the power pump module base.

  • Page 33: Re-Installing Covers

    Connections Vitodens 100-W, WB1B Installation & Service Re-installing Covers Reinstalling the covers for the boiler, power pump module and the CombiPLUS A. 1. Align and install the cover of the power pump module and lock into place by rotating the four captive screws 90 degrees with a Phillips screw driver.

  • Page 34: Adding Prv And Label

    Connections Vitodens 100-W, WB1B Installation & Service Adding PRV and Label Installing the PRV P and tee O to the CombiPLUS A and label S to the boiler. Note: The system must be leak tested. Refer to the boiler Installation Instructions. Boiler Boiler Supply...

  • Page 35: Programming

    Connections Vitodens 100-W, WB1B Installation & Service Programming Programming the boiler control for operation with or without the CombiPLUS. Note: If an optional CombiPLUS is used, the boiler control must be programmed. Note: For additional programming refer to the boiler Operating, Installation and Service Instructions.

  • Page 36: Installation Examples

    A low-loss header offers additional benefits not provided immersion or strap-on aquastat must be installed in the by a pair of closely spaced tees. Viessmann strongly low temperature underfloor loop (downstream of the recommends and prefers the use of a low-loss header mixing valve) to de-energize the pump and/or boiler over closely spaced tees.

  • Page 37: Combiplus Built-In Pump

    Connections Vitodens 100-W, WB1B Installation & Service Installation Examples (continued) CombiPLUS built-in pump Grundfos UPS15-78 three speed heating circuit/DHW production pump for Vitodens 100 WB1B 26, 35 boilers (in the factory setting, the pump speed is preset to ‘speed three’) Speed Three Speed Two Speed One...

  • Page 38: System Layout 1 To 4

    Connections Vitodens 100-W, WB1B Installation & Service Installation Examples (continued) Legend System Layout 1 Air vent Vitodens 100-W, WB1B 26, 35 with... PRV Pressure relief valve - one heating circuit Vitodens 100-W Room thermostat Heating circuit Heating circuit pump (field supplied) Expansion tank Pressure Activated By-Pass Note: Heating circuit C in the examples should be designed...
  • Page 39 Connections Vitodens 100-W, WB1B Installation & Service Installation Examples (continued) System Layout 2 Legend Vitodens 100-W, WB1B 26, 35 with... Air vent - DHW storage tank PRV Pressure relief valve - low-loss header TPV Temperature and pressure relief valve - one heating circuit Vitodens 100-W gas-fired condensing boiler External boiler/DHW controller (field supplied) Heating circuit...
  • Page 40 12” / 305 mm *A low-loss header offers additional benefits not provided by a pair of closely spaced tees. Viessmann strongly recommends and prefers the use of a low-loss header over closely spaced tees. Please see page 36 for details.
  • Page 41 System Layout 4 Vitodens 100-W, WB1B 26, 35 with... - DHW storage tank - Low-loss header - one high-temperature heating circuit - one low-temperature heating circuit - Viessmann Vitotronic 050, HK1M controller OPTIONAL ROOM THERMOSTAT SEE NOTE 2 120V POWER SUPPLY...
  • Page 42 Connections Vitodens 100-W, WB1B Installation & Service Installation Examples (continued) Wiring diagram for system layout 4 ROOM THERMOSTAT Vitotronic 050, Model HK1M Digital Indoor/ Outdoor Heating Circuit Control Unit & Power Pump Module Vi.PN Power Pump Module 7134627 See Installation Instruction specific to each control Honeywell Aquastat L4008A1031...
  • Page 43 Connections Vitodens 100-W, WB1B Installation & Service Installation Examples (continued) System Layout 4 Note 1 Optional high limit safety control of heating circuit E. Installation of heating circuits: [During DHW production with DHW terminal activated, - radiator heating circuit (high temperature circuit) the boiler supply temperature will be set automatically - underfloor heating circuit with 3-way mixing valve (low to 172º...

  • Page 44: Vitodens And Combiplus Layout

    Connections Vitodens 100-W, WB1B Installation & Service Installation Examples (continued) Vitodens 100-W, WB1B 26, 35 with one heating circuit Maximum Flow Rates and the CombiPLUS Model WB1B ∆ t 83,000 108,000 Output Btu/h 30° F rise (GPM) 35° F rise (GPM) 40°...
  • Page 45 Connections Vitodens 100-W, WB1B Installation & Service Installation Examples (continued) Vitodens 100-W, WB1B 10-26, 10-35 with... Note: The use of a low-loss header is recommended if the CombiPLUS Kit water flow rate is less than 1.7 GPM (400 L/h) or low-loss header more than 6.2 GPM (1400 L/h).
  • Page 46 Closely spaced tees, 4x pipe Ø or 12” (305 mm)* Expansion tank * A low-loss header offers additional benefits not provided by a pair of closely spaced tees. Viessmann strongly recommends and prefers the use of a low-loss header over closely spaced tees. See page 49 for details.

  • Page 47: Boiler In Heating/Cooling Application

    Legend A Heating/Cooling unit B Spring-loaded flow check valve IMPORTANT C Circulation pump Viessmann strongly suggests that the valves pictured D Expansion tank above be labelled “v1” and “v2”. E Water chiller F Boiler circuit pump (field supplied) The boiler, when used in connection with a refrigeration...

  • Page 48: Boiler With Low Water Cut-Off (Remote Mounted, Field Supplied)

    Connections Vitodens 100-W, WB1B 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) If boiler is installed above radiation level, a low water cut-off device of approved type (field supplied) must be installed in all instances at the highest point of the piping Hi-Vent Hi-Vent...

  • Page 49: Low-Loss Header

    BS Boiler Supply System Supply in this manual. BY Bypass Viessmann Temp. Viessmann strongly recommends the use of a low-loss (with laminar flow) Sensor (not used) header in cases where the system head and flow rates Debris and/or air SW Sensor Well are unknown.

  • Page 50: Venting Connection

    Venting / Control Connections Vitodens 100-W, WB1B Installation & Service Venting Connection For detailed installation information and specific CAUTION venting requirements, reference the Vitodens Venting System Installation Instructions Under certain climatic conditions some building materials supplied with the boiler. may be affected by flue products expelled in close proximity to unprotected surfaces.

  • Page 51: Electrical Connections To The Power/Pump Module

    (water temperature request) and transmits it to the boiler. The boiler will adjust the heat PUMP input accordingly (low-high modulation). Legend A Viessmann outdoor temperature sensor (field wiring) B OpenTherm (field wiring) C Connection cable terminal D Power pump module Diverting valve Follow the installation instructions of the field supplied operating controls.

  • Page 52: Closing The Power Pump Module And Reinstalling The Control Unit

    1. Set front panel on the guide rails and push in place. 2. Tighten screws at the bottom. IMPORTANT Read and follow, where applicable, the safety instructions of all labels and stickers attached to boiler surfaces. Do not remove any of these instructions. Contact Viessmann if any replacement labels are required.

  • Page 53: Necessary Tools

    Start-up, Inspection and Maintenance Vitodens 100-W, WB1B Installation & Service Necessary Tools Testing/analysis equipment (use only calibrated equipment) Special items Approved leak detection fluid for natural gas Multimeter to measure 0 - 12A, 120V and resistances Pipe joint sealant Flue gas analyzer to measure % CO or O (i.e.

  • Page 54: Overview Of Boiler Components

    Start-up, Inspection and Maintenance Vitodens 100-W, WB1B Installation & Service Overview of Boiler Components Fig. 45 Legend O Air / gas inlet Venturi A Fixed high limit, 210° F (99° C) L Burner mounting flange assembly B Ignition / ionization electrode M Boiler temperature sensor C Flow switch, VK315M N Radial fan...

  • Page 55: Overview Of Combiplus Components

    Start-up, Inspection and Maintenance Vitodens 100-W, WB1B Installation & Service Overview of CombiPLUS Components Fig. 46 Legend A Boiler water supply B Diverting valve C Expansion tank D Outlet temperature sensor E System water supply F DHW G Boiler water return H Air vent valve I Plate-type heat exchanger J Flow sensor...

  • Page 56: Procedure Overview

    Start-up, Inspection and Maintenance Vitodens 100-W, WB1B Installation & Service Procedure Overview Start-up steps Inspection steps Maintenance steps 6 6 6 1. Fill and vent the heating system ..................57 2. Check power supply connection..................58 3. Select appropriate gas type....................58 4.

  • Page 57: Steps

    Start-up, Inspection and Maintenance Vitodens 100-W, WB1B Installation & Service Steps 1. Filling and bleeding heating system Start-up 1. Open system isolation valves (if installed). Note: Before filling the heating system with water, check that all necessary flow check valves are installed. 2.

  • Page 58: Check Power Supply Connection

    Start-up, Inspection and Maintenance Vitodens 100-W, WB1B Installation & Service Steps (continued) 1. Fill and vent heating system (continued) Start-up 5. Check system pressure. 6. Ensure proper / adequate fuel supply exists. Open gas shutoff valve. Max. boiler operating pressure.......45 psig Min.

  • Page 59: Measure Static Pressure And Running Pressure

    Start-up, Inspection and Maintenance Vitodens 100-W, WB1B Installation & Service Steps (continued) 3. Select appropriate gas type (continued) Start-up and Maintenance To verify the fuel type 1. Simultaneously turn selector dial “ “ and “tr“ to their center position as shown. “SERV" appears in the display.
  • Page 60 Start-up, Inspection and Maintenance Vitodens 100-W, WB1B Installation & Service Steps (continued) 4. Measure static pressure and running pressure (continued) Start-up and Maintenance 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 61: How The Vitodens 100-W Boiler Operates

    Start-up, Inspection and Maintenance Vitodens 100-W, WB1B Installation & Service Steps (continued) 5. How the Vitodens 100-W boiler operates... Start-up and Maintenance The Vitodens 100-W boiler uses a premix combustion system, which is designed to deliver a measured air-gas mixture to the burner for complete combustion. The gas is injected upstream of the blower.

  • Page 62: Relay Tests (Burner Tests)

    Start-up, Inspection and Maintenance Vitodens 100-W, WB1B Installation & Service Steps (continued) 6. Relay tests (burner tests) Start-up and Maintenance The Vitodens 100-W boiler is factory preset for operation with natural gas. It is recommended that a CO check be performed at the boiler vent pipe adaptor as part of the initial start-up/maintenance procedure.
  • Page 63 Start-up, Inspection and Maintenance Vitodens 100-W, WB1B Installation & Service Steps (continued) 6. Relay tests (burner tests) (continued) Start-up and Maintenance Note: During the relay test (if required) the selector dial “tr” position can limit the boiler input according to IMPORTANT the following table;...

  • Page 64: I 7. High Altitude Testing

    Start-up, Inspection and Maintenance Vitodens 100-W, WB1B Installation & Service Steps (continued) 7. High altitude setting Start-up and Maintenance Note: When the boiler is initially turned on, a self- diagnostic check is initiated. Wait until the temperature display is stabilized and the boiler’s actual temperature is displayed.

  • Page 65: S M 8. Set Maximum Input

    Start-up, Inspection and Maintenance Vitodens 100-W, WB1B Installation & Service Steps (continued) 8. Set maximum heating input Start-up and Maintenance - The maximum input (or output) for heating operation can be limited (does not affect DHW heating). The limit is set via the modulation range. The maximum adjustable heating input (or output) may be limited by programming.

  • Page 66: Clock Natural Gas Meter

    Start-up, Inspection and Maintenance Vitodens 100-W, WB1B Installation & Service Steps (continued) 9. Clock natural gas meter Start-up and Maintenance Clock natural gas meter to verify input IMPORTANT 1. Ensure all other gas equipment served by the meter is turned off during timing of gas input to the Vitodens A boiler underfired by 5% is still acceptable.

  • Page 67: Check Ventinging System For Leaks (Circular Air Gap Measurement) For Sealed Combustion, Coaxial Venting Only

    12. Check venting system for leaks (circular air gap measurement) Start-up and Maintenance For sealed combustion, coaxial vent only Viessmann strongly recommends that the heating contractor perform a simplified leak test during boiler start-up. For this purpose it is sufficient to measure the concentration of the combustion air in the coaxial gap of the air intake pipe.

  • Page 68: Remove Burner

    Start-up, Inspection and Maintenance Vitodens 100-W, WB1B Installation & Service Steps (continued) 14. Remove burner Maintenance 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 69: Check And Adjust Ignition And Ionization Electrodes

    Start-up, Inspection and Maintenance Vitodens 100-W, WB1B Installation & Service Steps (continued) Maintenance 16. Check and adjust ignition and ionization electrodes Start-up and Maintenance 1. Check ignition and ionization electrode for wear, contamination or warping. 2. Clean electrodes with a small brush or emery paper. 3.

  • Page 70: I M 18. Check Neutralization Unit (If Applicable)

    Start-up, Inspection and Maintenance Vitodens 100-W, WB1B Installation & Service Steps (continued) 18. Check neutralization unit (if applicable) Accessory Maintenance 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 71: Check Diaphragm Expansion Tank And System Pressure

    Start-up, Inspection and Maintenance Vitodens 100-W, WB1B Installation & Service Steps (continued) 20. Check diaphragm expansion tank and system pressure Start-up and Maintenance Perform check on the system when cold. 1. Drain boiler/system and reduce pressure until the manometer reading is “0”. 2.

  • Page 72: Check Gas Pipes And Fittings For Leaks

    Start-up, Inspection and Maintenance Vitodens 100-W, WB1B Installation & Service Steps (continued) Start-up and Maintenance 22. Check gas pipes and fittings for leaks WARNING The gas supply piping must be leak tested before placing the boiler in operation. CAUTION Ensure all joints of gas line are pressure tight and that gas valves do not leak when under normal operating pressure (use approved leak detection liquid).

  • Page 73: Troubleshooting Steps

    Troubleshooting Vitodens 100-W, WB1B 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 74 to 76). Note: See page 54 and 55 for an overview of controls, indicators and system components.

  • Page 74: Diagnosis

    Troubleshooting Vitodens 100-W, WB1B Installation & Service Diagnosis Sequence of operation and potential faults during each start-up cycle Corrective action Call for heat by control (boiler Increase boiler water set-point water set-point temperature is 9º F temperature and ensure that there is (5º...

  • Page 75: Diagnostics Table: Faults With Fault Display On Control Unit

    Troubleshooting Vitodens 100-W, WB1B Installation & Service Diagnosis (continued) Faults are indicated by a flashing fault code with fault code symbol “U” on the display. For fault code explanations see the following table. Diagnostics table: Faults with fault display on control unit Fault code in System Cause...

  • Page 76: How To Reset Faults

    Troubleshooting Vitodens 100-W, WB1B 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 Maximum flue gas temperature Check the flue gas system. exceeded Reset control.

  • Page 77: Boiler Connection

    Troubleshooting Vitodens 100-W, WB1B Installation & Service Boiler Connection Remove front panel 1. Loosen the screws at the bottom of the boiler; do not remove completely. 2. Remove the front panel. Start-up and Maintenance Check boiler temperature sensor 1. Disconnect cables from boiler temperature sensor A. 2.

  • Page 78: Check Outdoor Temperature Sensor

    Troubleshooting Vitodens 100-W, WB1B 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 79: Determining The Boiler Set-Point

    Troubleshooting Vitodens 100-W, WB1B Installation & Service Boiler Connection (continued) Determining the boiler set-point Room dependent control: Outdoor temperature sensor not connected With no outdoor sensor installed, the “tr” dial will provide a constant temperature set-point for the boiler based on the dial position selected. Setting the dial between 1 and 6 will provide a set-point value of 81º...

  • Page 80: Check Fixed High Limit

    Troubleshooting Vitodens 100-W, WB1B Installation & Service Boiler Connection (continued) Check fixed high limit If the burner control unit cannot be reset after a fault shutdown (F2), even though the boiler water temperature is below approx. 203° F (95° C), check the fixed high limit. 1.

  • Page 81: Check Fuses

    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 in packs of 10 (Part No. 7404 396). Start-up and Maintenance Start-up and Maintenance Power pump module fuse 1.

  • Page 82: Combiplus Connection

    Troubleshooting Vitodens 100-W, WB1B Installation & Service CombiPLUS Connection Check outlet temperature sensor 1. Pull the leads from outlet temperature sensor A. 2. Check the sensor resistance and compare it with the curve. 3. Replace the sensor in case of severe deviation. Temperature Note: Water can leak when replacing the outlet temperature sensor.

  • Page 83: Checking Or Replacing The Plate Typeheat Exchanger

    Troubleshooting Vitodens 100-W, WB1B Installation & Service CombiPLUS Connection (continued) Checking or replacing the plate type heat exchanger 1. Shut off and drain the boiler on the heating water and the DHW side. 2. Disconnect diverting valve motor connection 3. Push the three-way drive A slightly upwards. 4.

  • Page 84: Electrical Connections To The Terminal Strip For Accessories

    The boiler will adjust the heat input accordingly (low-high modulation). OT-Devices The Viessmann Input Module is designed to accept a 0-10(DC) modulating input signal from a boiler reset module controller and send this signal to the Vitodens Boiler control 100 with OpenTherm communication.

  • Page 85: Technical Data

    Additional Information Vitodens 100-W, WB1B Installation & Service Technical Data Call for heat priority logic table The Vitodens 100-W, WB1B boiler has several operating control options. The following table provides the priority levels of each of the different operating controllers. Priority Control operating mode Required signal * Pump output...
  • Page 86 Additional Information Vitodens 100-W, WB1B Installation & Service Technical Data Rated voltage:..........120 VAC Setting of adjustable electronic high limit:...176º F (80º C) Rated frequency: ..........60 Hz Setting of fixed high limit Rated current:...........6.0 A~ safety cut-out (fixed setting):....210º F (99º C) Main fuse:............max.
  • Page 87 For detailed information refer to the Vitodens Venting System Installation Instructions. For 5,000 to 10,000 ft. (1,500 to 3,048 m) operation, a coding address change is required. Refer to the Installation and Service Instructions for details. For information regarding other Viessmann System Technology componentry, please reference documentation of respective product.
  • Page 88 Additional Information Vitodens 100-W, WB1B Installation & Service Technical Data (continued) CombiPLUS Kit Integrated with the Boiler Model No. WB1B 26 WB1B 35 DHW supply temperature ºF (ºC) 140 (60) 140 (60) USG/h Continuous draw rate with DCW temp. of 56º F (13º C) USG/h Continuous draw rate at ∆...

  • Page 89: Burner Program Sequence Of Operation

    Additional Information Vitodens 100-W, WB1B Installation & Service Burner Program Sequence of Operation Call for heat Fan control Fan required >1500 rpm >1500 rpm signal Ignition Combination gas valve Flame signal Start-up and Maintenance min. 4.2 s Sequence time max. 70 s *1 max. 20 s 0.9 s 0.3 s 0.12 s...
  • Page 90 Additional Information Vitodens 100-W, WB1B 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. modulation signal (high-low) is processed (eg. In this phase both the combination gas valve and boiler actual water temperature).

  • Page 91: Wiring Diagram - Natural Gas / Propane

    Additional Information Vitodens 100-W, WB1B Installation & Service Wiring Diagram - Natural gas / Propane...

  • Page 92: Service Function Overview

    Additional Information Vitodens 100-W, WB1B Installation & Service Service Function Overview Activation Sequence Service / Addition / Function Condition Display Selector Position / Selector Position / Selector Position / Dial Selection Dial Selection Dial Selection Filling Selector Control SERV r + w Dial Left Range Static...

  • Page 93: Parts List

    WB1B 35c 7457961 Ordering Replacement Parts: Please provide Model and Serial Number from rating plate A when ordering replacement parts. Order replacement components from your Viessmann distributor. Parts Gas connection pipe Front panel Burner gasket, d=187 x 5.5 mm Combustion chamber door refractory...
  • Page 94 Additional Information Vitodens 100-W, WB1B Installation & Service Parts List Parts Heat exchanger assembly, ASME Heat exchanger connection pipe (supply) Heat exchanger connection pipe (return) Spring clips (set) Fastener set (return pipe) Vent pipe adaptor P-Trap Gasket for flue gases Air intake cover Air intake cap Test port cap (set of 2)
  • Page 95 Additional Information Vitodens 100-W, WB1B Installation & Service Parts List Parts Pressure gage (PSI) Control console Control console cover Fuse, 2.5A/250V (pkg of 10) (for control console 080) Power/Pump control module Other Parts (not illustrated) Fuse, 6.3A/250V (pkg of 10) (for 086 Power/pump control module) Control bracket Wiring harness, X20...
  • Page 96 WB1B 35c 7457961 Ordering Replacement Parts: Please provide Model and Serial Number *1 when ordering replacement parts. Order replacement components from your Viessmann distributor. Parts 010 Cover panel 020 Bottom panel 101 Nipple, c” HEX 102 Flex pipe, c” x 7”...
  • Page 97 Additional Information Vitodens 100-W, WB1B Installation & Service Parts List Parts Accessory pack, plugs, clips (340 and 344) Replacement powerhead, UPS15-78, 120/1/60 Plate heat exchanger, 20 plates Gasket set, PWT Step motor, linear Flow sensor Air vent Bypass cartridge Clip d=8 (set of 5) Clip d=10 (set of 5) Clip d=16 (set of 5) Clip SIV special (set of 5)

  • Page 98: Maintenance Record

    Service Service Service Service Service Service Measurements Setpoint value date: date: date: date: date: date: max. Static pressure “w.c. 14 “w.c. Running pressure (supply pressure) 4-14 “w.c. Natural gas “w.c. 10-14 “w.c. Liquid Propane gas “w.c. Carbon dioxide content CO at lower end of rated input range vol.-% (low-fire)

  • Page 99: Lighting And Operating Instructions

    Additional Information Vitodens 100-W, WB1B 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. A.
  • Page 100 5600 332 v1.3 Technical information subject to change without notice. Printed on environmenally friendly (recycled and recyclable) paper.

This manual is also suitable for:

Vitodens 100-wVitodens 100-w wb1b 26Vitodens 100-w wb1b 35

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