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Installation Instructionsfor use by heating contractorVitodens 200-W, B2HAModels 112, 150, 399, 530Wall-mounted, gas-fired condensing boilerFor operation with natural gas and liquid propane gasHeating input: 113 to 530 MBH33 to 155 kWVITODENS 200-WrProduct may not be exactly as shownIMPORTANTH5683 709 - 2004/2020Read and save these instructionsfor future reference.Please file in Service Binder

SafetyVitodens 200-W B2HA 112, 150, 399, 530 InstallationSafety, Installation and Warranty RequirementsPlease ensure that these instructions are read and understood before commencing installation. Failure to comply withthe instructions listed below and details printed in this manual can cause product/property damage, severe personalinjury, and/or loss of life. Ensure all requirements below are understood and fulfilled (including detailed informationfound in manual subsections).WarrantyInformation contained in this andrelated product documentation mustbe read and followed. Failure to doso renders the warranty null and void.Licensed professional heating contractorThe installation, adjustment, service and maintenanceof this equipment must be performed by a licensedprofessional heating contractor. Please see section entitled“Important Regulatory and InstallationRequirements”.Contaminated airAir contaminated by chemicals can cause by-productsin the combustion process, which are poisonous toinhabitants and destructive toViessmann equipment. For a listing of chemicals whichcannot be stored in or near theboiler room, please see subsectionentitled “Mechanical room” in the“Installation Instructions”.Advice to ownerOnce the installation work is complete, the heatingcontractor must familiarize the system operator/ultimate owner with all equipment, as well as safetyprecautions/requirements, shutdown procedure, andthe need for professional service annually before theheating season begins.WARNINGInstallers must follow local regulations with respect toinstallation of carbon monoxide detectors. Follow theViessmann maintenance schedule of the boiler containedin this manual.Operating and Service DocumentationIt is recommended that all product documentation such asparts lists, operating and service instructions be handedover to the system user for storage. Documentation is tobe stored near boiler in a readily accessible location forreference by service personnel.Carbon monoxideImproper installation, adjustment, service and/ormaintenance can cause flue products to flow intoliving space. Flue products contain poisonous carbonmonoxide gas. For information pertaining to theproper installation, adjustment, serviceand maintenance of this equipment toavoid formation of carbon monoxide,please see subsection entitled“Mechanical room” and “Ventingrequirements” in the “Installation Instructions”.Fresh airThis equipment requires fresh air forsafe operation and must be installedensuring provisions for adequatecombustion and ventilation air exist. For information pertaining to thefresh air requirements of this product,please see subsection entitled“Mechanical room” in the “InstallationInstructions”.Equipment ventingNever operate boiler without an installed ventingsystem. An improper venting system can causecarbon monoxide poisoning. For information pertaining toventing and chimney requirements,please see section entitled “VentingConnection”. All products ofcombustion must be safely ventedto the outdoors.WARNINGThis boiler requires fresh air for safe operation and mustbe installed with provisions for adequate combustionand ventilation air (in accordance with local codes andregulations of authorities having jurisdiction).Do not operate this boiler in areas with contaminatedcombustion air. High levels of contaminants such asdust, lint or chemicals can be found at constructionsites, home renovations, in garages, workshops, in drycleaning/laundry facilities, near swimming pools and inmanufacturing facilities.Contaminated combustion air will damage the boilerand may lead to substantial property damage, severepersonal injury and/or loss of life. Ensure boiler/burner isinspected and serviced by a qualified heating contractorat least once a year in accordance with the ServiceInstructions of the boiler.WARNINGDo Not operate the boiler without the front cover in place.25683 709 - 20Product documentationRead all applicable documentation before commencinginstallation. Store documentation near boiler in areadily accessible location for reference in the futureby service personnel. For a listing of applicable literature,please see section entitled “ImportantRegulatory and Safety Requirements”.

SafetyVitodens 200-W B2HA 112, 150, 399, 530 InstallationSafety, Installation and Warranty RequirementsFiberglass wool and ceramic fiber materialsWARNINGInhaling of fiberglass wool and/or ceramic fibermaterials is a possible cancer hazard. These materialscan also cause respiratory, skin and eye irritation.The state of California has listed the airborne fibers ofthese materials as a possible cancer hazard throughinhalation. When handling these materials, special caremust be applied.Suppliers of ceramic fiber products recommend thefollowing first aid measures:- Respiratory tract (nose and throat) irritation:If respiratory tract irritation develops, move the personto a dust free location.- Eye irritation: If eyes become irritated, flush immediatelywith large amounts of lukewarm water for at least 15minutes. Eyelids should be held away from the eyeballto ensure thorough rinsing. Do not rub eyes.- Skin irritation: If skin becomes irritated, remove soiledclothing. Do not rub or scratch exposed skin. Wash areaof contact thoroughly with soap and water. Usinga skin cream or lotion after washing may be helpful.- Gastrointestinal irritation: If gastrointestinal tractirritation develops, move the person to a dust freeenvironment.(continued)Suppliers of fiberglass wool products recommend thefollowing precautions be taken when handling thesematerials:- Avoid breathing fiberglass dust and contact withskin and eyes.- Use NIOSH approved dust/mist respirator.- Wear long-sleeved, loose fitting clothing, glovesand eye protection.- Wash work clothes separately from other clothing.Rinse washer thoroughly.- Operations such as sawing, blowing, tear-out andspraying may generate airborne fiber concentrationrequiring additional protection.First aid measures- If eye contact occurs, flush eyes with water to removedust. If symptoms persist, seek medical attention.- If skin contact occurs, wash affected areas gentlywith soap and warm water after handling.WARNINGAppliance materials of construction, products ofcombustion and the fuel contain alumina, silica, heavymetals, carbon monoxide, nitrogen oxides, aldehydesand/or other toxic or harmful substances which cancause serious injury or loss of life and which areknown to the State of California to cause cancer,birth defects and other reproductive harm. Alwaysuse proper safety clothing, respirators and equipmentwhen servicing or working nearby the appliance.About these Installation InstructionsTake note of all symbols and notations intended to draw attention to potential hazards or important productinformation. These include “WARNING”, “CAUTION”, and “IMPORTANT”. See below.WARNING Warnings draw your attention to the presence ofpotential hazards or important product information.Indicates an imminently hazardous situation which,if not avoided, could result in loss of life, serious injuryor substantial product/property damage.CAUTION Cautions draw your attention to the presence ofpotential hazards or important product information.Indicates an imminently hazardous situation which,if not avoided, may result in minor injury or product/property damage.IMPORTANT5683 709 - 20 Helpful hints for installation, operation or maintenancewhich pertain to the product. This symbol indicates that additional, pertinentinformation is to be found. This symbol indicates that other instructions mustbe referenced.3

Table of ContentsSafetyGeneral InformationVitodens 200-W B2HA 112, 150 InstallationPageSafety, Installation and Warranty Requirements.2Product documentation.2Warranty.2Licensed professional heating contractor.2Contaminated air.2Advice to owner.2Carbon monoxide.2Fresh air.2Equipment venting.2About these Installation Instructions.3Important Regulatory and Installation Requirements.6Codes.6Instructing the system user.6Initial start-up.6Working on the equipment.5Technical literature.6For installations on the Commonwealth ofMassachusetts.7CSD-1 field testing of high limit switches.7Applicability.8Product Information.8Multi boiler system.8Set-upMechanical Room.9Remove the Boiler Packaging.10Prepare Boiler for Mounting.11Before Set-up.12Boiler ConnectionsMinimum Clearances.12Recommended minimum service clearances.12Preparing the Connections.13Wall Mounting.15Fitting the wall mounting bracket.15Installing the wall mounting bracket.15Installation of mounting bracket onbrick/concrete wall.15Boiler Stand.15Connections.18Connecting power.18Boiler venting.18Proper piping practice.18Gas shut-off valve connection.18Gas connection and piping.19Gas piping pressure test.21Heating water connections.20DHW storage tank information.21Making the DHW connections.23Accessing the control unit connections.23Routing the connecting cables.25Connecting DHW sensor.26Setting altitude parameters.26Control base.27External accessory connection box.28Condensate connection.2945683 709 - 18Boiler Mounting.16Boiler mounting frame and bracket.16Installation on wood studs.16Installation on metal studs.16

Vitodens 200-W B2HA 112, 150 InstallationTable of ContentsPageBoiler Connections(continued)Safety Connections.30Installing boiler safety devices.30Low water cut-off.31Waterside Flow.31Waterside flow (primary circuit).31Installation Examples.33General.33Clearances.33System Layout 1-10.34Alternative DHW Connection.44Boiler in Heating/Cooling.45Boiler in heating/cooling application.45Boiler with Low Water Cut-off.46Boiler with low water cut-off (remote-mountedfield supplied).46Venting Connection.46Overview of Electrical Connections,Models B2HA 112, 150, 399 and 530.47Control ConnectionsElectrical Connections.49Power supply connection of accessories.49Connection of accessories.49Accessing the X3 Plug.50Connecting the Low-loss Header Sensor.50Connecting the Outdoor Temperature Sensor.51External 0-10 Volt Signal Connection.52Connecting a 24VAC Thermostat.53Thermostat Connection.54Pump Connection.55Connection to boiler .55Connection at AM1 (accessory) .55LON Module.56Installing the LON module to the boilercontrol board.56Connecting the LON module cable.56Accessory Kit.57Accessory kit connections for heating circuitwith mixing valve.57Closing the Control Unit.55Additional InformationClosing the External Accessories ConnectionBox.57Reinstalling the Front EnclosurePanel.59Instructing the system user.59Technical Data.60Installation Fittings.625683 709 - 18Lighting and Operating Instructions.635