VIESSMANN Vitodens 100-W, B1HA/B1KA Gas Boiler Instruction Manual

October 27, 2023
VIESSMANN

VIESSMANN Vitodens 100-W, B1HA/B1KA Gas Boiler

VIESSMANN-Vitodens-100-W,-B1HA-B1KA-Gas-Boiler-PRODUCT

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. Ensure all requirements below are understood and fulfilled (including detailed information found in manual subsections).

  • Product Documentation

Read all applicable documentation before commencing installation. Store documentation near the boiler in a readily accessible location for reference in the future by service personnel.

  • For a listing of applicable literature, please see the section entitled “Important Regulatory and Safety Requirements”.

  • Warranty
    Information contained in this and related product documentation must be read and followed. Failure to do so renders the warranty null and void.

  • Licensed professional heating contractor
    The installation, adjustment, service, and maintenance of this equipment must be performed by a licensed professional heating contractor.

  • Please see the section entitled “Important Regulatory and Installation Requirements”.

  • Contaminated air
    Air contaminated by chemicals can cause by-products in the combustion process, which are poisonous to inhabitants and destructive to Viessmann equipment.

  • For a listing of chemicals that cannot be stored in or near the boiler room, please see the subsection entitled “Combustion Air Supply”.

  • Advice to owner
    Once the installation work is complete, the heating contractor must familiarize the system operator/ ultimate owner with all equipment, as well as safety precautions/requirements, shutdown procedure, and the need for professional service annually before the heating season begins.

  • Carbon monoxide
    Improper installation, adjustment, service, and/or maintenance can cause flue products to flow into the living space. Flue products contain poisonous carbon monoxide gas.

  • For information pertaining to the proper installation, adjustment, service, and maintenance of this equipment to avoid the formation of carbon monoxide, please see the instructions supplied with the burner.

  • Fresh air
    This equipment requires fresh air for safe operation and must be installed ensuring provisions for adequate combustion and ventilation air exists.

  • For information pertaining to the fresh air requirements of this product, please see the subsection entitled “Combustion Air Supply”.

  • Equipment venting
    Never operate the boiler without an installed venting system. An improper venting system can cause carbon monoxide poisoning.

  • For information pertaining to venting and chimney requirements, please see the section entitled “Venting Connection”. All products of combustion must be safely vented to the outdoors.

WARNING

Installers must follow local regulations with respect to the installation of carbon monoxide detectors. Follow the manufacturer’s maintenance schedule of the boiler contained in the “Service Instructions” manual.

About these 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.

WARNING

Indicates an imminently hazardous situation which, if not avoided, could result in death, serious injury or substantial product/property damage.

CAUTION

Indicates an imminently hazardous situation which, if not avoided, may result in minor injury or product/property damage.

IMPORTANT

  • Warnings draw your attention to the presence of potential hazards or important product information.
  • Cautions draw your attention to the presence of potential hazards or important product information.
  • Helpful hints for installation, operation or maintenance which pertain to the product.
  • This symbol indicates that additional, pertinent information is to be found.
  • This symbol indicates that other instructions must be referenced.

For your Safety

  • Operation
    Before operating the boiler, make sure you fully understand its method of operation. Your heating contractor should always perform the initial start-up and explain the system. Any warranty is null and void if these instructions are not followed.

  • Flue gas smell

  • Deactivate heating equipment.

  • Open windows and doors.

  • Inform your heating contractor immediately.

  • Working on the equipment
    All personnel working on the equipment or the heating system must have the proper qualifications and hold all necessary licenses.
    Ensure main power to equipment, the heating system, and all external controls have been deactivated. Close the main gas supply valve. Take precautions in all instances to avoid accidental activation of power during service work.

  • Dangerous conditions

  • Deactivate main power immediately.

  • Close gas supply valve.

  • Maintenance and cleaning
    Regular inspection and service by a qualified heating contractor are important to the performance of the Viessmann Vitodens 100-W. Neglected maintenance impacts on warranty; regular inspection ensures clean, environmentally friendly, and efficient operation. We recommend a maintenance contract with a qualified heating contractor.

  • Technical information

  • Technical Data Manual

  • Installation and Service Instructions

  • Operating Instructions and User’s Information Manual

  • Vitodens Venting System Installation Instructions

  • Quick Start-up Guide

  • Instructions of other products utilized and installed

  • Installation codes mentioned in this manual

  • Carbon monoxide

  • The U.S. Consumer Product Safety Commission strongly recommends the installation of carbon monoxide detectors in buildings in which gas-burning equipment is installed. Carbon monoxide (CO) is a colorless, odorless gas, which may be produced during incomplete combustion of fuel and/or when the flame does not receive an adequate supply of combustion air. Carbon monoxide can cause severe personal injury or loss of life. Therefore, carbon monoxide detectors that are in compliance with a nationally recognized standard (e.g. ANSI/UL 2034, CSA 6.19 – latest editions) should be installed and maintained in buildings that contain gas-burning equipment.
    Note: Viessmann does not test any detectors and makes no representation regarding any brand or type of detector.

  • For safe operation

  • We recommend that you frequently:

  • Check for debris which could obstruct the flow of flue gases. The vent or chimney must not be blocked. A blocked or partially blocked vent or chimney can cause flue gases to leak into the structure. Flue gases leaking into the house can cause injury or death. A qualified heating contractor must remove the blockage from blocked or partially blocked chimneys.

  • Check pressure gage for correct system (water) pressure. Check for water on the floor from the discharge pipe of the pressure relief valve or any other pipe, pipe joint, valve or air vent.

  • Check for moisture, water, or appearance of rust on the flue gas pipes, their joints as well as vent dampers, or side wall vent terminals (if so equipped).

  • Ensure that nothing is obstructing the flow of combustion and ventilation air and no chemicals, garbage, gasoline, combustible materials, flammable vapors and liquids are stored (not even
    temporarily) in the vicinity of the boiler.

  • Do not allow unsupervised children near the boiler. Service/inspection of the boiler and the system is recommended once per year. Maintenance, service and cleaning are specified in the Installation and Service Instructions. Before the heating season begins, it is recommended that the boiler and burner be serviced by a qualified heating contractor. Service contracts may be established through gas suppliers or other licensed contractors in your area.

WARNING

  • As there are no user-serviceable parts on the boiler, burner or control, the end-user must not perform service activities or adjustments of any kind on system components. Failure to heed this warning can cause property damage, severe personal injury, or loss of life.
  • Improper installation, adjustment, service, or maintenance can cause flue products to flow into living space. Flue products contain poisonous carbon monoxide gas which can cause nausea or asphyxiation resulting in severe personal injury or loss of life.

CAUTION

  • Should overheating occur or the gas supply fail to shut off, do not disconnect the electrical supply to the pump. Instead, shut off the gas supply at a location external to the appliance.

WARNING

  • The operator/ultimate owner is required to have the heating boiler, burners, and controls checked, as a minimum once per year, by the original installer or by a competent heating contractor familiar with the equipment. Defects must be corrected immediately.

CAUTION

  • Do not use this boiler if any part has been under water. Immediately call a qualified heating contractor to inspect the boiler and to replace any part of the control system and any gas control which has been under water.

WARNING

  • Failure to protect against frozen pipes could result in burst water pipes, serious property damage and/or personal injury. Boiler may shut down. Do not leave your home unattended for long periods of time during freezing weather conditions without turning off the water supply and draining water pipes or otherwise protecting against the risk of frozen pipes.

Your heating boiler is designed to provide a warm and comfortable living environment. It is NOT designed to ensure against freezing of water pipes.
The boiler is equipped with several safety devices that are designed to shut down the boiler and to prevent it from restarting in the event of various unsafe conditions.
If your boiler remains off for an extended period of time during cold weather, water pipes may freeze and burst, resulting in extensive water damage and conditions in which mold could grow. Certain molds are known to cause respiratory problems, as well as to pose other serious health risks. In case of water damage, immediate measures should be taken to dry out affected areas as quickly as possible to prevent mold from developing.
If your home will be unattended for an extended period of time during cold weather, you should.

  • Shut off the water supply to the building, drain the water pipes and add antifreeze for potable water to drain traps and toilet tanks. Open faucets where appropriate.

Or…

  • Have someone check the building frequently during cold weather and call a qualified service agency if required.

Or…

  • Install a reliable remote temperature sensor that will notify somebody of freezing conditions within the home.

WARNING

  • If you notice fire coming from the appliance, call the fire department immediately! Do not attempt to extinguish the fire unless qualified to do so.

WARNING

  • Fire causes a risk of burns and explosion!
  • Shut down the boiler
  • Close fuel shut-off valves
  • Use a tested fire extinguisher, class ABC.
  •  Ensure ambient temperatures are higher than 32°F (0°C) and lower than 104°F (40°C).
  • Prevent the air from becoming contaminated by halogenated hydrocarbons (e.g. as contained in paint solvents or cleaning fluids) and excessive dust (e.g. through grinding or polishing work). Combustion air for the heating process, and ventilation of the boiler room must be free of corrosive contaminants. To that end, any boiler must be installed in an area that has no chemical exposure. The list on page 7 indicates the main, currently known sources.
  • Avoid continuously high levels of humidity (e.g. through frequent drying of laundry).
    Never close existing ventilation openings. Replacement components, spare and wear parts

IMPORTANT

Components which are not tested with the heating system may damage the heating system, or affect its functions. Installation or replacement may only be carried out by a qualified heating contractor.

Installation area conditions

WARNING

Incorrect ambient conditions can lead to damage to the heating system and put safe operation at risk.
Sources of combustion and ventilation air contaminants.

Areas likely to contain contaminants:

  • New building construction
  • Swimming pools
  • Remodeling areas, hobby rooms
  • Garages with workshops
  • Furniture refinishing areas
  • Dry cleaning/laundry areas and establishments
  • Auto body shops
  • Refrigeration repair shops
  • Metal fabrication plants
  • Plastic manufacturing plants
  • Photo processing plants
  • Beauty salons

Products containing contaminants:

  • Chlorine-type bleaches, detergents, and cleaning solvents found in household laundry rooms
  • Paint and varnish removers
  • Hydrochloric acid, muriatic acid
  • Chlorine-based swimming pool chemicals
  • Spray cans containing chlorofluorocarbons
  • Chlorinated waxes and cleaners
  • Cement and glues
  • Refrigerant leaks
  • Calcium chloride used for thawing
  • Sodium chloride is used for water-softening salt
  • Permanent wave solutions
  • Adhesives used to fasten building products and other similar items
  • Antistatic fabric softeners used in clothes dryers
  • Energy saving tips (central heating)

Room temperature:

  • Never overheat your rooms. Every 2°F (1°C) of room temperature reduction saves up to 6% on your heating bills.
  • Never set your room temperature higher than 68°F (20°C).

Operating modes:

  • If you do not require central heating, select one of the following operating modes:
  • In summer, if you do not want to heat any rooms but do need DHW, set the boiler water temperature to OFF (see page 10).
  • If you require neither room heating nor DHW for an extended period, set the boiler water temperature and the DHW temperature to OFF.

Ventilation:

  • To ventilate, open windows fully briefly, and meanwhile close the thermostatic valves (if there is no mechanical ventilation system installed).

Roller shutters:

  • Close roller shutters (where installed) at dusk.

Thermostatic valves:

  • Ensure that thermostatic valves are properly adjusted.

Radiators:

  • Never cover radiators or thermostatic valves.

DHW temperature:

  • Never set the DHW tank temperature excessively high (see page 14).
  • Hot water consumption:
  • Consider showering instead of running a bath.
    A shower generally uses less energy than a full bath.

Lead-free:

  • This product conforms to NSF/ANSI 372 for “lead-free” plumbing products as defined by applicable US state laws and by section 1417 of the US Safe Drinking Water Act.

Overview of Controls and Indicators

Legend

  • A Display value or “ F” (fault)
  • B Temperature in °F/°C (in conjunction with the display value)
  • C Heating mode
  • D DHW heating
  • E Display value or fault code
  • F Fault indicator
  • G Burner fault reset
  • H Temperature in °F/°C (in conjunction with the display value)
  • I On-screen buttons
  • 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

Display indicators and operating buttons
The control unit is equipped with a touchscreen. To make changes to settings and call up information, tap the on-screen buttons. Activation of the on- screen buttons is confirmed with a signal tone. Your heating contractor can turn the signal tone off if desired. On-screen buttons for operation

  • MODE Selecting/terminating functions

  • Changing or selecting values

  • Changing or selecting values

  • Accepting values/confirming the selection

  • 1 step back

  • Burner fault reset

Default display

  • The following is displayed:
  • Current boiler water temperature
  • Operating mode
  • Burner operation and current burner output
  • Above diagram shows range of 40%

Operating Mode of the Heating System

  1. Operation without room temperature thermostat
  2. For setting the required heating water temperature, see page 10.
  3. Operation with room temperature thermostat
  4. Make any settings on the connected room temperature controller using the relevant operating instructions.

Note: Set the boiler water temperature high enough to achieve the required room temperature.

  1. For the boiler water temperature setting, see page 11
  2. Weather-compensated operation without room temperature thermostat
  3. In weather-compensated mode, the boiler water temperature is regulated subject to the outside temperature.
  4. For setting the room temperature, see page 11.
  5. Weather-compensated operation with room temperature thermostat
  6. In weather-compensated mode, the boiler water temperature is regulated subject to the outside temperature.

Note: Connect a room thermostat to your heating system to prevent heat being generated unnecessarily at times when you do not require central heating. This enables central heating to be suspended at night, for example, in order to save energy.

Starting the Heating System

Legend

  • A Pressure gage
  • B LCD display unit
  • C power switch ON/OFF
  1. Check the pressure of your heating system on the pressure gauge. The minimum system pressure is 12 psi (0.8 bar) Notify your heating contractor if the system pressure is too low.
  2. In-room air dependent operation:
    Combustion air is drawn from the boiler room. Check whether the vents in the boiler room are open and unobstructed.
  • Open the gas shut-off valve.
  • Turn ON the ON/OFF switch.
    Your heating system and room temperature thermostat (if connected) are now ready for operation.

Shutting Down the Heating System

With frost protection monitoring

If you do not wish to use your boiler for several days you can stop central heating and/or DHW production. Set the boiler water temperature and the DHW temperature to OFF. Frost protection monitoring is now active for the boiler and the DHW tank, see below for detailed instructions.
Note: Frost protection for the entire heating system

  • see operating instructions for the room temperature controller.

Without frost protection (shutdown)
Shut down your heating system completely if it will not be needed for longer periods (several months).
We recommend you contact your local heating contractor if you are planning to take your heating system out of use for long periods. Your heating contractor can then take suitable steps such as frost protection for the system or heating surface preservation as required.

  1. Close the gas shut-off valve and safeguard against unauthorized reopening.
  2. Turn OFF the ON/OFF switch.

Note: The system is no longer protected against frost.

Stopping Central Heating and DHW Heating

Stopping central heating
You do not want to heat your home but you want to have DHW available (summer mode).
Tap the following on-screen buttons:

  1. the set boiler water temperature flashes and is displayed.
  2. B until “OFF” is displayed.
  3. OK to confirm.

Note: The boiler circulation pump briefly starts every

  • 24 hours to prevent it from seizing up.
  • Boiler frost protection is enabled.

Stopping DHW heating
You do not want to have DHW available.
Tap the following on-screen buttons:

  1. MODE
  2. until flashes.
  3. OK to confirm. The set DHW temperature flashes.
  4. B until “OFF” is displayed.
  5. OK to confirm.

Setting the Central Heating Temperature

The display shows the current boiler water temperature

Operation without room temperature thermostat
If no outside temperature sensor and no room temperature controller are connected, the jumper must be installed on OT terminals.

Refer to the Installation and Service Instructions.

The room temperature is influenced by the heating water temperature. In the delivered condition, the heating water temperature is set to 158°F (70°C). Setting the heating water temperature

Tap the following on-screen buttons:

  1. the set heating water temperature flashes and r is displayed.
  2. until the required heating water temperature is displayed.
  3. OK to confirm.

The display shows the current boiler water temperature

The left side of the display shows the current boiler water temperature. The right side displays the current outdoor temperature. The left side of the display shows the current boiler water temperature. The right side displays the current outdoor temperature.

Operation with room temperature thermostat

  • If no outside temperature sensor is connected,
  • but a room temperature controller is.
  • If the required room temperature is not achieved, ensure the boiler water temperature setting is sufficiently high. In the delivered condition, the boiler water temperature is set to 158°F (70°C).

Setting the boiler water temperature Tap the following on-screen buttons:

  1. the set boiler water temperature flashes and r are displayed.
  2. until the required boiler water temperature is displayed.
  3. OK to confirm.

Weather-compensated operation without room temperature thermostat Setting the room temperature An outside temperature sensor must be connected for weather- compensated operation and a jumper must be installed on OT terminals. Refer to the Installation and Service Instructions. In the delivered condition, a parameter value of 20 (or 68 if the display is converted to °F) is set for central heating. Should you wish to set a higher room temperature, increase the parameter value; reduce it for a lower room temperature. Refer to ‘setting the heating curve’ on pages 12 and 13. Weather-compensated operation with room temperature thermostat setting the room temperature In the delivered condition, a parameter value of 20 (or 68 if the display is converted to °F) is set for central heating. Should you wish to set a higher room temperature, increase the parameter value; reduce it for a lower room temperature. Refer to ‘setting the heating curve’ on pages 12 and 13. Call for heat on the room thermostat will activate the boiler. The boiler will operate based on the selected outdoor reset curve. When the room thermostat is satisfied the boiler will shut down until the next call by the room thermostat.

Setting the Heating Curve

Heating curve
Heating curves illustrate the relationship between the outdoor temperature, the set room temperature, and the boiler water temperature or supply temperature. The lower the outdoor temperature, the higher the boiler water temperature or supply temperature. In order to guarantee sufficient heat and minimum fuel consumption at any outdoor temperature, the conditions of your building and your heating system must be taken into consideration. The heating curve is set by your heating contractor for this purpose.

Frost protection function
The frost protection function requires an outside temperature sensor to be connected. The frost protection function becomes active at outside temperatures of <41°F (<5°C). The burner starts and the boiler water temperature is held at 68°F (20°C).

Adjusting the Heating Curve

Example: For outdoor temperature −14°C:

  • A Underfloor heating system, slope 0.2 to 0.8
  • B Low temperature heating system, slope 0.8 to 1.6 C Heating system with a boiler water temperature in excess of 75°C, slope 1.6 to 2.0

Factory settings

  1. Tap MODE.
  2. Tap / until CONFI flashes.
  3. Tap OK to confirm. is displayed in the left-hand display area. The right-hand display area flashes. Enter 12 with
  4. OK to confirm. flashes in the left-hand display area.
  5. Use / to select “15”.
  6. OK to confirm. The right-hand display flashes Here, the heating curve slope can be adjusted. 02 represents the heating curve 0.2, adjustable to 35 (heating curve slope 3.5).
  7. Tap / to select the heating curve slope.
  8. OK to confirm. The selected value is adopted.

Legend
A Changing the slope: The gradient of the heating curves changes.

Adjusting the Heating Curve Set Point

Heating curve set point
The parameter default setting is 20 (or 68 if the display is converted to °F).
Setting the set point

  1. Tap The set parameter flashes and r will be displayed.
  2. Use to select the parameter.
  3. OK to confirm.

Note: When adjusting this setting, bear in mind that your heating system requires some time to heat the home to the required temperature.

Increasing set point temperature

Adjustment of the increased set point temperature from 68 to 79°F (20 to 26°C)

Legend

  • A Boiler water temperature
  • B Outdoor temperature
  • C Setpoint

Reduced set point temperature

  • Legend
  • A Boiler water temperature
  • B Outdoor temperature
  • C Setpoint

DHW Temperature

For the Vitodens 100-W B1KA with instantaneous DHW, a scalding label is placed on the side of the boiler.VIESSMANN-Vitodens-100-W,-B1HA-B1KA-Gas-Boiler-
FIG-22

Tap the following on-screen buttons:

  1. MODE
  2. until flashes.
  3. OK to confirm. The set DHW temperature flashes.
  4. to set the required DHW temperature.
  5. OK to confirm.

DHW comfort function
Only for Vitodens 100-W B1KA boiler. Your heating contractor can activate the DHW comfort function. This makes DHW available faster when required. The display then shows “COMFORT”.

The rooms are too Cold

Cause Remedy
The heating system is off. –    Turn on the ON/OFF switch 8 (see illustration

on page 9).

–    Switch ON the mains power switch, if installed (outside the boiler room).

–    Reset the circuit breaker in the power distribution board.

Control unit or remote control incorrectly adjusted.| –  Operation with room temperature controller:

Set a higher boiler water temperature (see page 11).

–  Weather-compensated operation:

Set a higher room temperature (see page 11).

Only when operating with DHW heating: DHW priority is enabled ( is displayed)| Wait until the DHW tank has been heated up.

In the case of operation with instantaneous domestic hot water B1KA), stop DHW draw-off.

No fuel.| With liquid propane gas:

Check the fuel reserves and re-order if required. With natural gas:

Open the gas shut-off valve. If necessary, check with your gas supply utility.

 is shown on the display| Notify your heating contractor of the fault code shown.
 and the fault code flash on the display. The burner does not start.| Reset burner fault (see page 17).

Notify your heating contractor if the fault recurs.

Danger : If faults are not rectified, they can have life threatening consequences.

Do not reset the burner fault several times in quick succession. Notify  your heating contractor if a fault recurs. Your heating contractor will be able to analyze the cause and rectify the fault.

Air in the heating system| Bleed radiators.
The burner is switched off. Blockage in the ventilation air supply or flue system.| Notify your local heating contractor.

The rooms are too Hot

Cause Remedy
The Control unit or remote control is incorrectly adjusted. Check and correct

the room temperature or boiler water temperature (see page 11)

Refer to room temperature controller operating instructions

 is shown on the display| Inform your heating contractor of the fault code.

Troubleshooting

There is no Hot Water

Cause Remedy
The heating system is off. –    Turn on the ON/OFF switch 8 (see diagram on

page 8).

–    Switch ON the mains power switch, if installed (outside the boiler room).

–    Reset the circuit breaker in the power distribution.

Control unit or remote control incorrectly adjusted.| Check settings and correct if required:

– DHW heating must be enabled (see page 14).

No fuel.| With LPG:

Check the fuel reserves and re-order if required. For natural gas:

Open the gas shut-off valve. If necessary, check with your gas supply utility.

 is shown on the display| Notify your heating contractor of the fault code shown.
 and the fault code flash on the display. The burner does not start.| Reset burner fault (see page 17).

Notify your heating contractor if the fault recurs.

Danger : If faults are not rectified, they can have life threatening consequences.

Do not reset the burner fault several times in quick succession. Notify  your heating contractor if a fault recurs. Your heating contractor will be able to analyze the cause and rectify the fault.

The DHW is too Hot

Cause Remedy
The control unit is incorrectly adjusted. Check and correct the DHW

temperature if required (see page 14).

and Fault Code Flashes on the Display

Cause Remedy
The burner does not start. Reset burner fault (see page 17).

Notify your heating contractor if the fault recurs.

Danger : If faults are not rectified, they can have life threatening consequences.

Do not reset the burner fault several times in quick succession. Notify  your heating contractor if a fault recurs. Your heating contractor will be able to analyze the cause and rectify the fault.

is  Shown  on  the Display

Cause Remedy
Heating system fault. Inform your heating contractor of the fault code.

Fault Messages on the DisplayService Instructions for Your Heating SystemVIESSMANN Vitodens 100-W, B1HA B1KA Gas Boiler
15

Any faults in your heating system are indicated on the display by a flashing fault symbol Read off the fault code in the display and report it to your heating contractor. This helps the contractor to properly prepare and may result in lower service costs.

WARNING

Visually inspect the vent termination for any signs of blockage. Under cold climate conditions [sustained temperatures below 0° F (-18° C)] the vent termination may be severely blocked by icicle and frost build-up. The boiler control will automatically shut down the boiler should the air intake or vent be blocked. Remove blockage if possible. Reset the boiler switch (ON / OFF switch to OFF and then back to ON) (see page 10) and the boiler should attempt to restart. If the blockage is not obvious and cannot be removed, contact a licensed professional heating contractor.

Resetting a Burner FaultVIESSMANN Vitodens 100-W, B1HA B1KA Gas Boiler
15

Note: If flashes and “R” appears on the display, the burner is locked out. Press and hold “R” for approx. 2 seconds. If the fault no longer exists, the default display will appear.
Notify your heating contractor if the fault recurs.

WARNING

If faults are not rectified, they can have life-threatening consequences. Do not reset the burner fault several times in quick succession. Notify your heating contractor if a fault recurs. Your heating contractor will be able to analyze the cause and rectify the fault.

Maintenance

Cleaning

All appliances may be cleaned with a commercially available domestic cleaning agent (non-scouring). Refer to the Installation and Service Instructions.

Inspection and Maintenance

Regular maintenance ensures trouble-free, energy-efficient, and environmentally responsible heating operation. For this, we strongly advise you to arrange an inspection and maintenance contract with your heating contractor. Boiler Increasing boiler contamination raises the flue gas temperature and thereby increases energy losses. All boilers should therefore be cleaned annually.

TerminologyService Instructions for Your Heating System

  • Constant temperature operation
  • In constant temperature operation, the heating water is constantly (continuously) heated to the selected boiler water temperature.
  • Supply water temperature
  • The temperature of the heating water that flows to the radiators (roughly equal to boiler water temperature).
  • Boiler water temperature
  • The heating water in the boiler (boiler water) is heated to the temperature set by the control unit. This temperature is referred to as boiler water temperature.
  • Room air-dependent operation
  • The combustion air is drawn from the room where the boiler is installed.
  • Direct vent operation
  • The combustion air is drawn from outside the building. The flue gases are vented outside the building.
  • Room temperature-dependent operation
  • A room temperature thermostat captures the room temperature and compares this with the required room temperature you set. If the room temperature is lower than the
  • required value, the boiler is switched on; if the room temperature is higher than the required value, the boiler is switched off.
  • Make any settings on the connected room temperature controller using the relevant operating instructions.

Note: The heating water temperature must be set high enough in order to achieve the required room temperature.

Temperature and pressure relief valve Safety equipment that must be installed in the hot water tank by your heating contractor. The safety valve opens automatically to prevent excess pressure in the DHW tank. Drinking water filter (if installed) A device that removes solids from potable water. The drinking water filter is installed in the cold water pipe upstream of the DHW tank or the instantaneous water heater.

For reasons of good hygiene:

  • replace filter element on non-backwashing filters every 6 months (visual inspection every 2 months),
  • on backwashing filters, backwash every 2 months.

Supply temperature
The temperature of the heating water that flows to the radiators (in the supply line). Accordingly, the temperature of the heating water that flows from the radiators to
the boiler (in the return line) is referred to as return temperature.
Weather-compensated operation
In weather-compensated mode, the flow temperature is controlled according to the outside temperature. This means that no unnecessary heat is generated in order to heat the rooms to the required room temperature you selected. The outside temperature is captured and transmitted to the control unit by a sensor fitted outside the building

Information

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. This appliance does not have a pilot. It is equipped C. Use only your hand to push in or turn the gas with an ignition device which automatically lights                                                   control knob. Never use tools. If the knob will the burner. Do not try to light the burner by hand.                                              not push in or turn by hand, don’t try to

repair it, call a qualified service technician.

B. BEFORE OPERATING smell all around the appliance Force or attempted repair may result in a fire area for gas. Be sure to smell next to the floor                                                         or explosion.

because some gas is heavier than air and will

settle on the floor. D. Do not use this appliance if any part has been WHAT  TO  DO  IF  YOU SMELL GAS under water. Immediately call a qualified

•  Do not try to light  any appliance. service technician to inspect the  appliance

•  Do not touch any electric switch; do not use any and to replace any part of the control system phone in your building. and any gas control which has been under

•  Immediately call your gas supplier from a water. neighbor’s phone. Follow the gas supplier’s

instructions.

•  If you cannot reach your gas supplier, call the fire department.

**OPERATING INSTRUCTIONS
1. STOP! Read the safety information  above on 5. Close main gas shut-off valve. this label.**

2. Set thermostat or other operating control to 6. Wait five (5) minutes to clear out any gas. lowest setting. Then smell for gas, including near the floor.

If you smell gas, STOP! Follow “B” in the

3. Turn off all electric power to  the appliance. safety information above on this label. If you

don’t smell gas, go to the next step.

4. This appliance is equipped with an ignition

device which automatically lights the burner. 7. Open main gas shut-off valve. Do not try to light the burner by hand.

Manual gas shutoff
8. Turn on all electric power to the appliance.

9. Set thermostat or other operating control to desired setting.

**Closed
10.If the appliance will not operate, follow the instructions “To Turn Off Gas To Appliance” and call your service technician or gas supplier.**

Open

TO TURN OFF GAS TO APPLIANCE
1. Set thermostat or other operating control to lowest setting.

2. Turn off all electric power to the appliance if service is to be performed.

3. Close main gas shut-off valve.

  • Scan for the digital copy of this document
  • Viessmann Manufacturing Company Inc.
  • 750 McMurray Road
  • Waterloo, Ontario N2V 2G5 Canada
  • Techlnfo Line 1-888-484-8643
  • 1-800-387-7373 Fax (519) 885-0887
  • www.viessmann.ca
  • info@viessmann.ca
  • Viessmann Manufacturing Company (U.S.) Inc.
  • 45 Access Road
  • Warwick, Rhode Island 02886 USA
  • Techlnfo Line 1-888-484-8643
  • 1-800-288-0667 Fax (401) 732-0590
  • www.viessmann-us.com
  • info@viessmann-us.com

Documents / Resources

| VIESSMANN Vitodens 100-W, B1HA/B1KA Gas Boiler [pdf] Instruction Manual
Vitodens 100-W B1HA B1KA Gas Boiler, Vitodens 100-W B1HA B1KA, Gas Boiler, Boiler
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