Viessmann B2HAH13 User manual

Please file in Service Binder
5461 885 - 04 01/2019
Operating Instructions
VITODENS
r
200-W/222-F
With Vitotronic 200 HO1B Controls
Read and save these instructions
for future reference.
Product may not be exactly as shown
IMPORTANT
H
Do not store or use gasoline or other
flammable liquids in the vicinity of this
or any other appliance.
WHAT TO DO IF YOU SMELL GAS
Do not try to light any appliances.
Do not touch any electrical switches,
do not use any phone in your building.
Immediately call your gas supplier
from a neighbor’s phone. Follow
the gas supplier’s instructions.
If you cannot reach your gas supplier,
call the fire department.
Installation and service must be
performed by a qualified installer,
service agency or the gas supplier.
If the information in this manual is not followed
exactly, a fire or explosion may result causing
property damage, personal injury or loss of life.
WARNING
Improper installation, adjustment, and/
or operation could cause carbon monoxide
poisoning resulting in injury or loss of life.
This product must be installed and serviced
by a professional service technician who is
experienced and qualified in hot water boiler
installation and gas combustion.
WARNING
Vitodens 200-W, B2HA and B2HB
Models 19 to 150, 68 to 530
Wall-mounted, gas-fired condensing boiler
For operation with natural gas and liquid propane gas
Heating input: 12 to 530 MBH
3.5 to 155 kW
Vitodens 222-F B2TA and B2TB
Models 19, 35, 68, 125
Floor-mounted, gas-fired condensing storage combi boiler
For operation with natural gas and liquid propane gas
Heating input: 12 to 125 MBH
3.5 to 37 kW

Vitodens 200-W B2HA/B2HB, 222-F B2TA/B2TB Operating
5461 885 - 04
Safety
Safety, Installation and Warranty Requirements
2
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).
WARNING
Installers must follow local regulations with respect to
installation of carbon monoxide detectors. Follow the
Viessmann maintenance schedule of the boiler contained
in this manual.
Product documentation
Read all applicable documentation before commencing
installation. Store documentation near boiler in a
readily accessible location for reference in the future
by service personnel.
For a listing of applicable literature,
please see 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 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 which
cannot be stored in or near the
boiler room, please see subsection
entitled “Mechanical room” in the
“Installation Instructions”.
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
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 formation of carbon monoxide,
please see subsection entitled
“Mechanical room” and “Venting
requirements” in the “Installation Instructions”.
Fresh air
This equipment requires fresh air for
safe operation and must be installed
ensuring provisions for adequate
combustion and ventilation air exist.
For information pertaining to the
fresh air requirements of this product,
please see subsection entitled
“Mechanical room” in the “Installation
Instructions”.
Equipment venting
Never operate 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 section entitled “Venting
Connection”. All products of
combustion must be safely vented
to the outdoors.
Operating and Service Documentation
It is recommended that all product documentation such as
parts lists, operating and service instructions be handed
over to the system user for storage. Documentation is to
be stored near boiler in a readily accessible location for
reference by service personnel.
WARNING
This boiler requires fresh air for safe operation and must
be installed with provisions for adequate combustion
and ventilation air (in accordance with local codes and
regulations of authorities having jurisdiction).
Do not operate this boiler in areas with contaminated
combustion air. High levels of contaminants such as
dust, lint or chemicals can be found at construction
sites, home renovations, in garages, workshops, in dry
cleaning/laundry facilities, near swimming pools and in
manufacturing facilities.
Contaminated combustion air will damage the boiler
and may lead to substantial property damage, severe
personal injury and/or loss of life. Ensure boiler/burner is
inspected and serviced by a qualified heating contractor
at least once a year in accordance with the Service
Instructions of the boiler.

Table of Contents
3
Page
Vitodens 200-W B2HA/B2HB, 222-F B2TA/B2TB Operating
5461 885 - 04
Safety, Installation and Warranty Requirements..............2
About these Instructions.............................................5
For your Safety..........................................................5
Operation...............................................................5
Working on the equipment.......................................5
Maintenance and cleaning........................................5
Flue gas smell.........................................................5
Dangerous conditions..............................................5
Technical Information..............................................5
Carbon monoxide....................................................6
For safe operation...................................................6
Frozen water pipe hazard.........................................7
Replacement components, spare and wear parts.........7
Installation area conditions.......................................7
Sources of combustion and ventilation
air contaminants.....................................................7
Getting Started...........................................................8
Your System is Preset at the Factory............................8
Central heating.......................................................8
Time and date.......................................................8
Power failure..........................................................8
DHW heating..........................................................8
Frost protection......................................................8
Wintertime/summertime changeover..........................8
Overview of Controls.................................................9
On-Board Vitotronic 200, HO1B Control....................9
Modular structure....................................................9
Programming unit (HO1B)........................................9
Menu......................................................................10
Programming unit.................................................10
“Help” menu........................................................10
Standard menu.....................................................10
Symbols on the display..........................................11
Extended menu....................................................11
How to Use the Controls...........................................12
Zone Circuit Steps....................................................14
Starting the Heating System......................................15
Shutting Down the Heating System............................15
Required Settings (Central Heating)............................16
Selecting a Heating Circuit........................................16
Settings the Room Temperature................................17
Setting the Heating Program for Central Heating...........17
Setting the Time Program for Central Heating...............18
Changing the Heating Curve.......................................19
Stopping the Central Heating......................................19
Comfort and Energy Saving Functions.........................20
Required Settings (DHW heating)................................22
Setting the DHW Temperature....................................22
Setting the Heating Program for DHW Heating.............22
Setting the Time Program for DHW Heating.................23
Safety
General Information
Controls
Start-up/Shutdown
Heating

Table of Contents
4
Page
Vitodens 200-W B2HA/B2HB, 222-F B2TA/B2TB Operating
5461 885 - 04
Room Temperature..................................................26
Heating Curve..........................................................26
Setting the Display Contrast.....................................27
Setting the Display Brightness....................................27
Entering Names for the Heating Circuits.......................27
Setting the Language.................................................28
Changing the Time and Date......................................28
Changing the Standard Menu.....................................29
Setting the Temperature Unit °F (°C).........................29
Restoring Factory Settings.........................................29
Scanning Information.................................................30
Scanning Service Messages.......................................31
Scanning Fault Messages...........................................32
Emissions Test Mode................................................33
Rooms are too Cold..................................................34
Rooms are too Hot...................................................34
There is no Hot Water...............................................35
The DHW is too Hot.................................................35
“
 ” Flashes and “Fault” is Displayed..........................35
“ ” Flashes and “Service” is Displayed.......................36
“Controls Locked Out” is Displayed............................36
“External Hook-up” is Displayed..................................36
“External Program” is Displayed..................................36
Inspection/Cleaning/Maintenance................................37
Menu Overview........................................................38
Extended menu....................................................38
Scanning options in the extended menu...................39
Terminology............................................................40
Central Heating - Zone Circuits (ZC)
Additional Adjustments
Scanning
Emissions
Troubleshooting
Maintenance
Additional Information

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Vitodens 200-W B2HA/B2HB, 222-F B2TA/B2TB Operating Safety
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.

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.
WARNING
Indicates an imminently hazardous situation which,
if not avoided, could result in loss of life, 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.
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.
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, heating system, and
all external controls has been deactivated. Close main
gas supply valve. Take precautions in all instances to
avoid accidental activation of power during service work.
Maintenance and cleaning
Regular inspection and service by a qualified heating
contractor is important to the performance of the
Viessmann Vitodens 200/222 Series. Neglected
maintenance impacts on warranty; regular inspection
ensures clean, environmentally friendly and efficient
operation. We recommend a maintenance contract with
a qualified heating contractor.
Flue gas smell
- Deactivate heating equipment.
- Open windows and doors.
- Inform your heating contractor.
Dangerous conditions
- Deactivate main power immediately.
- Close gas supply valve.
Technical information
Literature applicable to all aspects of the Vitodens
200/222 Series:
- Technical Data Manual
- Installation Instructions
- Service Instructions
- Operating Instructions and User’s Information Manual
Additional applicable literature:
- Accessory manuals

Vitodens 200-W B2HA/B2HB, 222-F B2TA/B2TB Operating
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6
For your Safety (continued)
Safety
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 edition) 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 loss of life. Blocked or partially blocked chimneys
must have the blockage removed by a qualified
heating contractor.
- 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 a year. Maintenance, service and
cleaning are specified in the Installation 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.
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
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.

7
5461 885 - 04
Vitodens 200-W B2HA/B2HB, 222-F B2TA/B2TB Operating
For your Safety (continued)
Safety
Frozen water pipe hazard
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 an 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
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.
Replacement components, spare and wear parts
Components which are not tested with the heating
system may damage the heating system or affect its
functions. Installation or replacement may only be
performed by a qualified heating contractor.
IMPORTANT
Installation area conditions
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 below indicates the main, currently known
sources.
Avoid continuously high levels of humidity
(e.g. through frequent drying of laundry).
Never close existing ventilation openings.
Sources of combustion and ventilation air contaminants
Areas likely to contain contaminants:
New building construction
Swimming pools
Remodelling 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
Cements and glues
Refrigerant leaks
Calcium chloride used for thawing
Sodium chloride 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
WARNING
Incorrect ambient conditions can lead to damage to
the heating system and put safe operation at risk.

Vitodens 200-W B2HA/B2HB, 222-F B2TA/B2TB Operating
5461 885 - 04
8
Getting Started
The timer of the control unit switches between “normal
room temperature” and “reduced room temperature” at
the required times.
1. Normal room temperature for the times you spend
at home and require a comfortably warm room
temperature [e.g. 68ºF (20ºC)].
Note: Times and duration of the two room
temperatures can be set on the programming
unit of your control.
The temperature settings for both the “normal
room temperature” and “reduced room
temperature” can be set according to your
personal preference.
2. Reduced room temperature for the times you are
away from home. To save energy, a lower
temperature is typically selected [e.g. 57ºF (14ºC)].
The timer of the control unit switches domestic hot water
production on and off at the required times.
1. Domestic hot water heating can be set to take
place during the times you spend at home and
require hot water for your daily DHW requirements
(e.g. for showering).
Note: Times and duration of the domestic hot
water production period can be set on the
programming unit of your control. You may
select a DHW temperature setting based on
your personal preference of up to 140ºF (60ºC).
The domestic hot water recirculation pump
(if installed) ensures that domestic hot water is
readily available when domestic hot water is drawn.
2. Domestic hot water heating can be set not to take
place for the times you spend sleeping, for example.
General Information
Your System is Preset at the Factory
The control unit is factory-set to “Heating and DHW”.
Your heating system is therefore ready for use.
Central heating
Constant 24 h, the rooms are heated
to 68°F (20°C) “Room temp setpoint” (standard
heating mode).
Reduced room temperature, the rooms are heated to
64°F (18°C) “Red. room temp setpoint” (reduced
room temperature, frost protection when used with
time program).
Your heating contractor can make further settings
for you during commissioning. You can change any
settings individually at any time to suit your
requirements (see “Central heating”).
Time and date
The day and time were set by your heating contractor
during commissioning
Power failure
All data is saved if there is a power failure.
DHW heating
Constant 24 h, the DHW tank is heated
to 122°F (50°C) “Set DHW temperature”.
Any installed DHW recirculation pump is on.
Set time program for night setback.
Frost protection
Your boiler and DHW tank are protected against
frost.
Wintertime/summertime changeover
This changeover is automatic.

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Vitodens 200-W B2HA/B2HB, 222-F B2TA/B2TB Operating
Overview of Controls
Controls
On-Board Vitotronic 200, HO1B Control
Modular structure
The control unit is integrated into the boiler. The control
unit comprises a standard unit, electronics modules and
a programming unit.
Standard unit:
■ON/OFF switch
■Optolink laptop interface
■Operating and fault indicators
■Reset button
■Fuses
■Boiler pressure gauge (psi)
Programming unit (HO1B):
■Easy operation through:
– Plain text display with graphic ability
– Large font and black & white depiction for good
contrast
– Context-sensitive help text
– Removable programming unit; can be mounted
on the wall with separate accessory
■With digital time switch
■Control keys for:
– Navigation
– Confirmation
– Help and additional information
– Menu
■Setting the:
– Room temperature
– Reduced room temperature
– DHW temperature
– Heating program
– Time programs for central heating, DHW heating
and DHW recirculation
– Economy mode
– Party mode
– Holiday program
– Heating curves
– Codes
– Actuator tests
– Test mode
– Zone control temperature setpoint
■Displaying the:
– Boiler water temperature
– DHW temperature
– Operating details
– Diagnostic details
– Fault messages

Vitodens 200-W B2HA/B2HB, 222-F B2TA/B2TB Operating
5461 885 - 04
10
Menu
Controls
Note: The programming unit can be placed in a wall
mounting base. This is available as an accessory.
Ask your heating contractor for more information.
Programming unit
Takes you to the previous step in the menu or
cancels a setting that has been started
Cursor keys To scroll through the menu or to set
values
OK Confirms your selection or saves the setting
? Calls up help texts for the selected menu option
Calls up the extended menu
“Help” menu
You can view a short guide giving an explanation of the
controls and information about heating circuit selection
(see page 16).
Call up the short guide as follows:
HIf the screen saver is active (see page 12): Press
? .
HIf you are somewhere in the menu: Press until the
standard menu is shown (see the following chapter).
Press ? .
Refer to the remote control
operating instructions
You can change any settings on your heating system
centrally at the programming unit of the control unit.
If remote controls are installed in your rooms, you can
also adjust the settings at the remote controls.
There are two control levels available, the “Standard
menu” and the “Extended menu”.
Standard menu (heating circuit only)
AHeader (shows the heating program for displayed
heating circuit D)
BCurrent outside temperature
CSet room temperature
DHeating circuit which is selected for operation in the
standard menu
AHeader zone circuit which is selected for operation
in the standard menu.
BHeating
CZone circuit pump output active
DCurrent outdoor temperature. Only for zone circuits
with weather compensated operation.
EIn conjunction with solar thermal system:
Solar circuit pump running
FSet zone circuit temperature
GBurner in operation with modulation rate in %.
Standard menu (when zone circuit is set)

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Vitodens 200-W B2HA/B2HB, 222-F B2TA/B2TB Operating
Menu (continued)ww
Controls
Standard menu (continued)
Note: If your heating system has 2 or 3 heating circuits:
You can select the heating circuit “HC1”, “HC2”
or “HC3” to be displayed in the standard menu
(see page 10).
- If your heating system only has one heating circuit:
No heating circuit name “HC...” is shown in the
header.
In the standard menu, you can adjust and scan the most
frequently used settings for the heating circuit shown in
the header:
HSet room temperature
Press the following keys:
for the required value
OK to confirm
HHeating program
Heating programs:
9 Standby mode with frost protection monitoring
w Only DHW
w Heating and DHW
Press the following keys:
for the required heating program
OK to confirm
Note: For any other connected heating circuits, use the
settings in the extended menu.
Call up the standard menu as follows:
HIf the screen saver is active (see page 12): Press any
key except ? .
HIf you are somewhere in the menu: Keep pressing
until the standard menu appears.
Note: 2 minutes after any setting has been made, the
display automatically reverts to the standard
menu.
Extended menu
In the extended menu, you can adjust and scan the
settings from the control unit’s range of functions used
less frequently, e.g. time programs and holiday programs.
The menu overview can be found on page 38.
Call up the extended menu as follows:
HIf the screen saver is active: Press any key except ?
and then press .
HIf you are somewhere in the menu: Press .
Symbols on the display
These symbols are not always displayed, but appear
subject to the system version and the operating state.
Heating programs:
9 Standby mode with frost protection monitoring
w Only DHW
w Heating and DHW
s Central heating with standard temperature
m Central heating with reduced temperature
M Party mode enabled
N Economy mode enabled
In conjunction with a solar thermal system:
Solar circuit pump running
A Burner in operation
Displays
HC1 (2, 3) To display the heating circuit selected
in the standard menu. To change this,
(see page 16).
e Frost protection monitoring
Messages
Service message
 Fault message

Vitodens 200-W B2HA/B2HB, 222-F B2TA/B2TB Operating
5461 885 - 04
12
Controls
How to Use the Controls
The screen saver will become active if you have not
adjusted any settings on the programming unit for a few
minutes. The display brightness is reduced.
1. Press
OK . This takes you to the standard menu
(see page 10).
2. Press This takes you to the extended menu (see
page 11). The selected menu option is highlighted in
white. The dialogue line E(see diagram on page 11)
then shows the necessary instructions.
The following diagram shows how to make settings with
different dialogue lines, using the set room temperature
setting as an example.
Legend
BCurrent outside temperature
CSet room temperature

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Vitodens 200-W B2HA/B2HB, 222-F B2TA/B2TB Operating Controls
How to Use the Controls (continued)

Vitodens 200-W B2HA/B2HB, 222-F B2TA/B2TB Operating
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14
Zone Circuits Steps
Controls

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5461 885 - 04
Vitodens 200-W B2HA/B2HB, 222-F B2TA/B2TB Operating
Starting the Heating System
Start-up/Shutdown
1. Check the heating system pressure at the pressure
gauge. The heating system pressure is too low if
the indicator points to the area below 14 psi (1 bar).
In this case, top up with water or notify your local
heating contractor.
2. For open flue operation: Check that the ventilation
apertures of the boiler room are open and unrestricted.
Note: With open flue operation, the combustion air
is drawn from the boiler room.
3. For Vitodens: Open the gas shut-off valve.
Note: Ask your heating contractor to explain the
positioning and handling of these components.
4. Switch ON the power supply, e.g. at a separate MCB/
fuse or a mains isolator.
5. Turn the ON/OFF switch “
8 “ ON. After a short time,
the standard menu is displayed (see page 9) and the
green ON indicator illuminates. Your heating system
and, if installed, your remote controls are now ready
for operation.
With frost protection monitoring
For every heating circuit, select heating program “Standby
mode”.
HNo central heating.
HNo DHW heating.
HFrost protection for the boiler and the DHW tank
is enabled.
For the heating circuit displayed in the header
Standard menu
1. for the heating program “Standby mode” (frost
protection monitoring)
2. OK to confirm
For the other heating circuits
Extended menu
1.
2. “Heating”
3. Select the heating circuit if necessary (see page 16)
4. “Heating program”
5. “Standby mode” (frost protection monitoring)
Note: The circulation pumps are briefly started every
24 hours to prevent them from seizing up.
Ending the heating program “Standby mode”
Select another heating program.
Without frost protection monitoring
1. Switch the ON/OFF switch OFF.
2. Close the shut-off valves.
3. Isolate the heating system from its main power
supply, e.g. at a separate MCB/fuse or a mains
isolator.
4. Where outside temperatures of below 37°F (3°C)
are anticipated, please take suitable measures to
protect the heating system against frost. If necessary,
contact your heating contractor.
Information on an extended shutdown
HCirculation pumps may seize up if they are not supplied
with power.
HAfter an extended shutdown, it may be necessary to
reset the date and time (see page 28).
Legend
AFault indicator (red)
BON indicator (green)
CReset button (R)
DON/OFF switch “
8 “
EPressure gauge (psi)
Shutting Down the Heating System

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Selecting a Heating Circuit
Example:
H“Heating circuit 1” is the heating circuit for the rooms
occupied by you.
H“Heating circuit 2” is the heating circuit for the rooms
of a separate apartment.
The heating circuits are marked at the factory as “Heating
circuit 1” (HC1), “Heating circuit 2” (HC2) and “Heating
circuit 3” (HC3).
If you or your heating contractor have renamed the
heating circuits (e.g. as “Apartment”, etc.), the name is
displayed instead of “Heating circuit ...” (see page 28).
Extended menu
1.
2. “Heating”
3. for the required heating circuit
Note: If you return to the standard menu with , the
header will again display “HC1” (see page 10).
For changes to the heating circuit display in the
standard menu, see page 29.
Heating
The heating of all rooms can, if necessary, be split over
several heating circuits.
HIn the case of heating systems with several heating
circuits, for all central heating settings, first select the
heating circuit where you want to make a change.
HThis selection is not possible in heating systems with
only one heating circuit.
Required Settings (Central Heating)
If you want central heating, check the following points:
HHave you selected the heating circuit?
For settings, see ‘selecting a heating circuit’ below.
HHave you set the required room temperature?
For settings, see page 17.
HHave you set the correct heating program?
For settings, see page 17.
HHave you set the required time program?
For settings, see page 18.

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Setting the Room Temperature
Setting the room temperature for standard heating mode
Factory setting: 68°F (20°C).
For the heating circuit displayed in the header
Proceed as described on page 11.
For the other heating circuits
Extended menu:
1.
2. “Heating”
3. Select the heating circuit if necessary (see page 16)
4. “Set room temperature”
5. Set the required value
Setting the room temperature for reduced heating mode
(night setback)
Factory setting: 65°F (18°C).
Extended menu:
1.
2. “Heating”
3. Select the heating circuit if necessary (see page 16)
4. “Set reduced room temp”
5. Set the required value
The rooms are heated to this temperature:
HBetween the time phases for standard heating mode
(see page 18).
HIn the holiday program (see page 21).
Factory setting: “Heating and DHW”
For the heating circuit displayed in the header
Proceed as described on page 11.
For the other heating circuits
Extended menu:
1.
2. “Heating”
3. Select the heating circuit if necessary (see page 16)
4. “Heating program”
5. “Heating and DHW”
HThe rooms of the selected heating circuit are heated
in accordance with the room temperature and time
program settings.
HDHW is reheated in accordance with the set DHW
temperature and time program (see chapter “DHW
heating”).
Setting the Heating Program for Central Heating

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Heating
Setting the Time Program for Central Heating
HThe time program for central heating is made up of time
phases. Constant 24 h for every day of the week is set
at the factory.
HYou can set the time program individually, to be the
same for every day of the week or different: You can
select up to 4 time phases per day for standard heating
mode. Set the start and end points for each time phase.
Between these time phases, the rooms are heated with
the reduced room temperature (see chapter “Setting the
room temperature for reduced heating mode”).
HWhen setting, bear in mind that your heating system
requires some time to heat the rooms to the required
temperature.
HIn the extended menu, you can scan the current time
program under “Information” (see chapter “Scanning
information”, “Heating circuit ...” group).
Extended menu:
1.
2. “Heating”
3. Select the heating circuit if necessary.
4. “Heating time program”
5. Select part of the week or a day.
6. Select the time phase !,?, §or $.
7. Set the start and end points for the relevant time
phase.
8. Press to exit the menu.
Note: If you want to terminate a time phase setting
process prematurely, keep pressing until the
required display appears.
Example shown:
- Time program for Monday to Friday (“Mo-Fr”)
- Time phase !: From 05:00 to 08:30 h
- Time phase ?: From 16:30 to 23:00 h
Example:
You want to set the same time program for every day
except Monday:
Select the period “Monday–Sunday” and set the time
program.
Then select “Monday” and set the time program for this.
Deleting a time phase
Set the time for the end point to the same time that was
set for the start point. The display shows the selected
time phase

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Changing the Heating Curve
Your system’s heating characteristics are affected by the
slope and the level of the selected heating curve. Further
information about the heating curve can be found under
“Terminology” on page 40.
Factory setting:
HSlope: 1.4
HHeating curve level: 0
HStandard room temperature (set value): 68°F (20ºC)
HReduced room temperature (set value): 65°F (18°C)
Extended menu:
1.
2. “Heating”
3. Select the heating circuit if necessary (see page 16)
4. “Heating curve”
5. “Slope” or “Level”
Note: Tips on when and how to change the heating
curve slope and level are displayed by pressing ? .
6. Set the required value
Example:
Change the heating curve slope to 1.5.
A graph clearly shows the change in the heating curve
as soon as you alter the value for the slope or level.
Depending on various outside temperatures (shown on
the horizontal axis), the assigned set flow temperatures
for the heating circuit are highlighted white.
Stopping the Central Heating
For the heating circuit displayed in the header
Standard menu:
1. for the heating program
“Only DHW” (summer mode, no central heating)
or
“Standby mode” (frost protection monitoring)
2. OK to confirm
For the other heating circuits
Extended menu:
1.
2. “Heating”
3. Select the heating circuit if necessary (see page 16)
4. “Heating program”
5. “Only DHW” (summer mode, no central heating)
or
“Standby mode” (frost protection monitoring)

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Heating
Comfort and Energy Saving Functions
Selecting the comfort function “Party mode”
With this function, you can change the room temperature
for several hours, e.g. if guests unexpectedly stay longer
in the evening. You do not have to change any existing
control settings. The DHW is reheated in this function to
the selected set temperature.
Extended menu
1.
2. “Heating”
3. Select the heating circuit if necessary (see page 16)
4. “Party mode”
5. Set the required room temperature during party mode
Display in the standard menu
HThe rooms are heated to the required temperature.
HDHW is reheated to the selected set temperature.
Ending the comfort function
HAutomatically after 8 hours.
or
HAutomatically when the system switches to standard
heating mode in accordance with the time program.
or
HIn the extended menu, set “Party mode” to “OFF”.
Selecting the energy saving function “Economy mode”
To save energy, you can reduce the room temperature
in standard heating mode. For example, if you leave the
house for a few hours.
Extended menu
1.
2. “Heating”
3. Select the heating circuit if necessary (see page 16)
4. “Economy mode”