Viessmann Vitovalor PT2 User manual

Operating instructions
for the system user
VIESMANN
Fuel cell based micro CHP system with integral gas condensing boiler
VITOVALOR PT2
5835784 GB 9/2018 Please keep safe.

2
Please follow these safety instructions closely to
prevent accidents and material losses.
Safety instructions explained
Danger
This symbol warns against the risk of injury.
!Please note
This symbol warns against the risk of material
losses and environmental pollution.
Note
Details identified by the word "Note" contain additional
information.
Target group
These operating instructions are designed for heating
system users.
This appliance can also be operated by children 8
years and older, as well as by individuals with reduced
physical, sensory or mental faculties or those lacking
in experience and knowledge, provided such individu-
als are being supervised or have been instructed in the
safe use of this appliance and any risks arising from it.
!Please note
Supervise children in the proximity of the appli-
ance.
■Never permit children to play with the appli-
ance.
■Cleaning and maintenance must not be car-
ried out by unsupervised children.
Connecting the appliance
■Connection and commissioning of the appliance may
only be carried out by authorised contractors.
■Only operate the appliance with suitable fuels.
■Adhere to the electrical connection requirements.
■Modifications to the existing installation may only be
carried out by authorised contractors.
Danger
Incorrectly executed work on the heating system
can lead to life threatening accidents.
■Work on gas installations must only be carried
out by a registered gas fitter.
■Work on electrical equipment must only be
carried out by a qualified electrician.
Working on the appliance
■When adjusting settings and carrying out work on the
appliance always follow the guidelines in these oper-
ating instructions.
Additional work on the appliance may only be carried
out by authorised contractors.
■Never open the appliance.
■Never remove the cladding.
■Never remove or change additional parts or installed
accessories.
■Never open or retighten pipe connections.
Danger
Hot surfaces can cause burns.
■Never open the appliance.
■Never touch the hot surfaces of uninsulated
pipes, fittings or flue pipes.
Damage to the appliance
Danger
Damaged equipment poses a safety hazard.
Check the appliance for external damage. Never
start up a damaged appliance.
Safety instructions
For your safety
5835784

3
If you smell gas
Danger
Escaping gas can lead to explosions which may
result in serious injury.
■Do not smoke. Prevent naked flames and
sparks. Do not switch lights or electrical appli-
ances on or off.
■Close the gas shut-off valve.
■Open windows and doors.
■Evacuate any people from the danger zone.
■Notify your gas and power supply utility and
your local heating contractor from outside the
building.
■Have the power supply to the building shut off
from a safe place (outside the building).
If you smell flue gas
Danger
Flue gas can lead to life threatening poisoning.
■Shut down the heating system.
■Ventilate the installation site.
■Close all doors in the living space.
Emergency contact
If you smell gas or detect a gas leak call the National
Gas Emergency service on 0800 111 999. Notify your
gas or electricity supplier and your heating contractor.
■Shut off the electricity supply to the building from a
safe place (outside the building).
In case of fire
Danger
Fire presents a risk of burns and explosion.
■Shut down the heating system.
■Close the shut-off valves in the fuel supply
lines.
■Use a tested fire extinguisher, class ABC.
What to do if water escapes from the appliance
Danger
If water escapes from the appliance there is a
risk of electrocution.
■Switch OFF the heating system at the external
isolator (e.g. fuse box, domestic distribution
board).
■Notify heating contractor.
What to do if the heating system develops a fault
Danger
Fault messages indicate faults in the heating
system. If faults are not rectified, they can have
life threatening consequences.
Do not acknowledge fault messages several
times in quick succession. Inform your heating
contractor so the cause can be analysed and
the fault rectified.
Safety instructions
For your safety (cont.)
5835784

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Installation room requirements
Danger
Sealed vents result in a lack of combustion air.
This leads to incomplete combustion and the
formation of life threatening carbon monoxide.
Never cover or close existing vents.
Do not make any subsequent modifications to
the building characteristics that could affect safe
operation (e.g. cable/pipework routing, cladding
or partitions).
Danger
Easily flammable liquids and materials (e.g. pet-
rol, solvents, cleaning agents, paints or paper)
can cause deflagration and fire.
Never store or use such materials in the boiler
room or in direct proximity to the heating sys-
tem.
!Please note
Incorrect ambient conditions can lead to heating
system damage and can put safe operation at
risk.
■Ensure ambient temperatures are above 0 °C
and below 35 °C.
■Prevent air contamination by halogenated
hydrocarbons (e.g. as contained in paints, sol-
vents or cleaning fluids) and excessive dust
(e.g. through grinding/polishing work).
■Avoid continuously high humidity levels (e.g.
through continuous drying of washing).
Extractors
The operation of appliances that extract air to the out-
side (cooker hoods, extractors, air conditioning units,
etc.) can create negative pressure. If the boiler is oper-
ated at the same time, this can lead to reverse flow of
the flue gas.
Danger
The simultaneous operation of the boiler and
appliances that extract air to the outside can
result in life threatening poisoning due to
reverse flow of the flue gas.
Take suitable steps to ensure an adequate sup-
ply of combustion air. If necessary, contact your
contractor.
Auxiliary components, spare and wearing parts
!Please note
Components not tested with the heating system
may damage the system or affect its function.
Only allow qualified contractors to carry out
installation or replacement work.
Safety instructions
For your safety (cont.)
5835784

5
1. Information Symbols ................................................................................................. 8
Terminology ........................................................................................... 8
Intended use .......................................................................................... 8
Liability ................................................................................................... 9
Software licences ................................................................................... 9
■Third party software ............................................................................ 9
2. Introductory information Commissioning ...................................................................................... 11
Serial number of internal electricity meter ............................................. 11
Your system is preset ............................................................................ 11
Energy saving tips ................................................................................. 12
Tips for greater comfort ......................................................................... 12
Power generation tips ............................................................................ 13
■Optimising the rate of on-site power consumption ............................. 13
■Long fuel cell runtimes ........................................................................ 13
■Using the integral energy manager .................................................... 13
3. Operation Programming unit .................................................................................. 14
■Standard menu ................................................................................... 14
■Main menu .......................................................................................... 16
Operating program ................................................................................. 16
■Operating programs for central heating and DHW heating ................ 16
■Special operating programs ................................................................ 17
Time program ........................................................................................ 17
■Setting time phases ............................................................................ 17
■Copying the time program to other days of the week ......................... 18
■Changing the time phases .................................................................. 18
■Deleting time phases .......................................................................... 18
Comfort function .................................................................................... 19
■Setting "Comfort mode" (if available) ............................................... 19
■Ending "Comfort mode" ................................................................... 19
Energy cockpit ....................................................................................... 19
■Default display in the energy cockpit .................................................. 19
■Energy statement for power generation and power consumption ...... 20
■DHW cylinder temperatures ............................................................... 20
■Energy status of the heat generator ................................................... 20
■Heating output, operating times and consumption ............................. 21
Favourites .............................................................................................. 21
■Compiling a list of favourite menu points ............................................ 21
System overview .................................................................................... 21
4. Start-up/shutdown Starting the micro CHP system .............................................................. 22
Switching off the micro CHP system ...................................................... 23
■Switching off power generation by the fuel cell ................................... 23
■Switching off heat generation with frost protection monitoring
("Standby mode") ............................................................................. 24
■Switching off heat generation without frost protection monitoring ...... 24
■Interrupting the external power supply to the micro CHP system ....... 24
5. Central heating Heating circuit selection ......................................................................... 26
Room temperature ................................................................................. 26
■Setting the room temperature for the selected heating circuit ............ 26
Switching central heating ON or OFF (operating program) ................... 26
Time program ........................................................................................ 27
■Setting a time program ....................................................................... 27
Heating curve ......................................................................................... 27
■Setting a heating curve ....................................................................... 27
"Holiday program" energy saving function ............................................. 28
■Setting the "Holiday program" with reduced room temperature ...... 28
■Setting the comfort function "Holidays at home" .............................. 28
Index
Index
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■Cancelling or deleting the "Holiday program" or "Holidays at
home" ................................................................................................ 29
6. DHW heating DHW temperature .................................................................................. 30
Operating program ................................................................................. 30
■Switching DHW heating ON or OFF ................................................... 30
Time program ........................................................................................ 30
■Setting a time program ....................................................................... 30
■DHW heating once, outside the time program .................................... 30
■Increased DHW hygiene ..................................................................... 31
■Setting the time program for the DHW circulation pump .................... 31
7. Further adjustments Locking the controls ............................................................................... 32
■Cancelling control lock ........................................................................ 32
■Changing the password for the control lock function .......................... 32
Setting the display illumination .............................................................. 32
Signal tone for display (key tone) .......................................................... 32
Naming heating circuits ......................................................................... 33
Setting the time and date ....................................................................... 33
Setting the language .............................................................................. 33
Setting units ........................................................................................... 33
Entering the heating contractor contact details ..................................... 33
Permanently selecting the default display ............................................. 34
Enabling Low power radio ..................................................................... 34
Enabling WLAN ..................................................................................... 34
■Switching internet access ON or OFF ................................................ 34
■WLAN settings .................................................................................... 34
■Static IP addressing ............................................................................ 35
■Switching access point ON or OFF .................................................... 35
Deactivating the display screen for cleaning ......................................... 35
Restoring the factory settings ................................................................ 36
8. Checks Checking information ............................................................................. 37
■Calling up the contact details for your heating contractor ................... 37
Checking service messages .................................................................. 37
Checking fault messages ....................................................................... 38
Checking help messages ....................................................................... 38
9. Emissions test mode Emissions test mode .............................................................................. 39
■Emissions test by flue gas inspector .................................................. 39
■Activating emissions test mode .......................................................... 39
■Measures required if test mode is not possible .................................. 39
■Ending emissions test mode ............................................................... 39
Selecting maintenance mode ................................................................ 40
Checking parameters for the mains monitor (ENS) ............................... 40
System characteristics during a mains fault .......................................... 40
10. What to do if... Rooms are too cold ................................................................................ 41
Rooms are too hot ................................................................................. 41
There is no hot water ............................................................................. 42
The DHW is too hot ............................................................................... 42
... no power is generated ....................................................................... 42
"Fault" is displayed ............................................................................... 42
ë and "Service" are displayed ............................................................ 43
"Panel locked" is displayed .................................................................. 43
"External hook-up" is displayed .......................................................... 43
11. Maintenance Cleaning ................................................................................................. 44
Inspection and maintenance .................................................................. 44
■Appliance ............................................................................................ 44
■DHW cylinder ...................................................................................... 44
Index
Index
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■Safety valve (DHW cylinder) ............................................................... 44
■Potable water filter (if installed) .......................................................... 44
Damaged cables / lines ......................................................................... 45
12. Appendix Overview of extended menu .................................................................. 46
Checking options under "Information" ................................................. 46
Heating terminology ............................................................................... 48
Information on disposal .......................................................................... 51
■Disposal of packaging ........................................................................ 51
■Final decommissioning and disposal of the heating system ............... 51
13. Keyword index ................................................................................................................ 52
Index
Index (cont.)
5835784

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Symbol Meaning
Reference to other document containing
further information
1.
Step in a diagram:
The numbers correspond to the order in
which the steps are carried out.
Warning of material losses and environ-
mental pollution
Live electrical area
Pay particular attention.
■Component must audibly click into place.
or
■Acoustic signal
■Fit new component.
or
■In conjunction with a tool: Clean the sur-
face.
Dispose of component correctly.
Dispose of component at a suitable collec-
tion point. Do not dispose of component in
domestic waste.
Terminology
To provide you with a better understanding of the func-
tions of your system control unit, some terminology is
explained. The terms are marked as follows:
Further information can be found in chapter
"Terminology" in the appendix.
Intended use
The appliance is intended solely for installation and
operation in sealed unvented heating systems that
comply with EN 12828, with due attention paid to the
associated installation, service and operating instruc-
tions. It is only designed for heating up heating water
that is of potable water quality.
Intended use presupposes that a fixed installation in
conjunction with permissible, system-specific compo-
nents has been carried out.
Commercial or industrial usage for a purpose other
than heating the building or DHW shall be deemed
inappropriate.
Information
Symbols
5835784

9
Any usage beyond this must be approved by the man-
ufacturer in each individual case.
Incorrect usage or operation of the appliance (e.g. the
appliance being opened by the system user) is prohibi-
ted and will result in an exclusion of liability. Incorrect
usage also occurs if the components in the heating
system are modified from their intended use (e.g. if the
flue gas and ventilation air paths are sealed).
Liability
Viessmann accepts no liability for loss of profit, unat-
tained savings, or other direct or indirect consequential
losses resulting from use of the WLAN interface inte-
gral to the micro CHP system or the corresponding
internet services, or for damage resulting from inappro-
priate use.
The limitation of liability shall not apply if the damage
was caused deliberately or through gross negligence
by Viessmann, or if mandatory liability applies due to
product liability legislation.
The Viessmann General Terms and Conditions apply,
which are included in each current Viessmann pricelist.
The relevant data protection regulations and terms of
use apply to the use of Viessmann apps.
The forwarding of emails and push notifications are
services provided by network operators for which
Viessmann accepts no liability. The terms and condi-
tions of the respective network operators therefore
apply.
Software licences
Third party software
1 Overview
This product contains third party software, and / or
open source software. You are entitled to use this third
party software in compliance with the respective
license conditions as provided under the link below.
Which open source software components are used on
your product can be determined by the following steps:
Follow the instructions as described above to start the
WiFi module in Access Point Mode. Then connect to
the WiFi "Viessmann-<xxxx>" with your smartphone.
You will find the password for the WiFi on the QR code
at "WPA2 login". On your device, please open a
browser and enter gateway address http://192.168.0.1
into the browser address line. Then follow the link
"Open Source Components Licenses".
2 Acknowledgements
Linux® is the registered trademark of Linus Torvalds in
the U.S. and other countries. This product includes
software developed by the OpenSSL Project for use in
the OpenSSL Toolkit (http://www.openssl.org/). This
product includes cryptographic software written by Eric
Young ([email protected]) and software written by
Tim Hudson ( [email protected] ).
3 Disclaimer
The open source software contained in this package is
distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FIT-
NESS FOR A PARTICULAR PURPOSE. The single
licenses may contain more details on a limitation of
warranty or liability.
4 How to obtain source code
The software included in this product may contain
copyrighted software that is licensed under a licence
requiring us to provide the source code of that soft-
ware, such as the GPL or LGPL. To obtain the com-
plete corresponding source code for such copyrighted
software, please contact us via the contact information
provided in section 5 below, indicating the build num-
ber you will find under the “Open Source Licences” link
mentioned in section 1 above. THIS OFFER IS VALID
FOR THREE YEARS FROM THE MOMENT WE DIS-
TRIBUTED THE PRODUCT AND VALID FOR AS
LONG AS WE OFFER SPARE PARTS OR CUS-
TOMER SUPPORT FOR THAT PRODUCT MODEL.
Information
Intended use (cont.)
5835784

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5 Contact Information
Viessmann Werke GmbH & Co. KG
D-35107 Allendorf
Germany
Fax [phone]
Phone [phone]
[email protected]
www.viessmann.de
Information
Software licences (cont.)
5835784

11
The commissioning and matching of the control unit to
local conditions and building characteristics, as well as
instructing the user in the operation of the system,
must be carried out by your contractor.
As the user of new combustion equipment, you may be
obliged to notify your local flue gas inspector of the
installation [check local regulations]. Your local flue gas
inspector [where applicable] will also provide you with
information on additional activities concerning your
combustion equipment (such as regular testing, clean-
ing, etc.).
Serial number of internal electricity meter
You will find the serial number of the internal electricity
meter on a label behind the upper front panel. See
page 22.
This information is required when registering the Vito-
valor PT2 with your grid operator.
Your system is preset
Your micro CHP system is preset at the factory and is
therefore ready for operation:
Central heating
■Between 06:00 and 22:00 h, the rooms are heated
to 20 °C "Set room temperature" (standard room
temperature).
■Between 22:00 and 06:00 h, the rooms are heated
to 14 °C "Reduced room temperature" (reduced
room temperature).
DHW heating
■Between 05:30 and 22:00 h, the DHW is heated to
50 °C "Set DHW temperature". Any installed DHW
circulation pump is switched on.
■Between 22:00 and 05:30 h, the gas condensing
boiler does not reheat the DHW cylinder. Any instal-
led DHW circulation pump is switched off.
Note
Any DHW heating begun before 22:00 h is termina-
ted.
Frost protection
■Your boiler and DHW cylinder are protected against
frost.
Wintertime/summertime changeover
■This changeover is automatic.
Date and time
■The date and time have been set by your heating
contractor.
You can change the settings at any time to suit your
individual requirements.
Power failure
All settings are saved if there is a power failure.
Power generation
Power generation takes place according to the specifi-
cations provided by the integral energy manager. The
fuel cell start times are matched to the power con-
sumption conditions.
Introductory information
Commissioning
5835784

12
Central heating
■Standard room temperature (see page 26):
Do not overheat your home. Every degree of room
temperature reduction saves up to 6 % on your heat-
ing bills.
Never set your standard room temperature ("Set
room temperature") higher than 20 °C.
■Time program (see page 17):
Heat your home to the standard room temperature
during the day and the reduced temperature at night.
Set this via the time program.
■Operating program:
–If you do not require central heating, select
"Standby mode" for the relevant heating circuits
(see page 16):
–If you require no hot water, select "DHW OFF"
(see page 16):
If you don't need to heat your home and don't
require DHW for long periods.
■Holidays (see page 28):
If you are going away, select the "Holiday pro-
gram":
The room temperature is reduced and DHW heating
is switched off.
■Ventilation:
Close the thermostatic valves when ventilating/airing
manually. Open the windows fully for a brief time.
■Roller shutters:
Close roller shutters (if installed) at dusk.
■Thermostatic valves:
Ensure that thermostatic valves are properly adjus-
ted.
■Radiators:
Never cover radiators or thermostatic valves.
DHW heating
■DHW circulation pump (see page 31):
Only activate the DHW circulation pump for periods
in which DHW is regularly drawn off. Set this via the
time program.
■DHW consumption:
Consider showering instead of running a bath. A
shower generally uses less energy than a full bath.
For additional energy saving functions, contact your
heating contractor.
Tips for greater comfort
Central heating
■Room temperature (see page 26):
You can select your individual preferred temperature
at any time under "Set room temperature" in the
standard menu.
■Time program (see page 17):
Make use of the time program. In the time program,
you can set time phases with different room temper-
atures, for example different temperatures for day
and night time.
■Heating curve (see page 27):
The heating curve enables you to individually adjust
the micro CHP system to the actual heat demand in
your home. If set correctly, your preferred tempera-
ture will be achieved all year round and your heating
system will be operated efficiently.
■"Comfort mode" (see page 19):
Select "Comfort mode" if you want to heat your
rooms with normal room temperature or comfort tem-
perature at other times than the selected time pha-
ses. "Comfort mode" will then be enabled until the
next time phase starts or for a maximum of 8 hours.
Example: Late in the evening, the reduced room
temperature is set by the time program. Your guests
stay longer.
DHW heating
■Time program (see page 30 and 31):
Use the time program for DHW heating.
Use the time program for the DHW circulation pump.
During the selected time phases, DHW is available
at the draw-off points at the required temperature.
Introductory information
Energy saving tips
5835784

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Optimising the rate of on-site power consumption
The largest financial savings will be achieved if the
power generated by the fuel cell is consumed on site.
Whenever possible, do not switch on large energy con-
sumers (e.g. hairdryer, vacuum cleaner, washing
machine, tumble dryer) simultaneously but after each
other.
Long fuel cell runtimes
Spread the drawing of heat (e.g. DHW consumption)
as evenly as possible over the day. This results in lon-
ger runtimes for power generation.
Using the integral energy manager
The energy manager optimises the fuel cell runtimes
subject to power and heat consumption within the
building. This results in the highest possible on-site
consumption of the power generated. The energy
manager is enabled at the factory.
Introductory information
Power generation tips
5835784

14
You can change any settings on your micro CHP sys-
tem centrally at the programming unit of the control
unit.
If remote control units are installed in your rooms, you
can also adjust the settings at the remote control units.
Remote control operating instructions
If the controls have not been operated for a certain
time, the screensaver appears:
Fig. 1
2 control levels are available:
■The standard menu: See page 14.
■The main menu: See page 16.
The programming unit is equipped with a
touchscreen. To input settings and check information,
tap the on-screen buttons.
Status indicator
During operation, a light bar appears on the program-
ming unit as a status indicator. Meaning of the display:
■Pulsing slowly:
Programming unit is in standby
■Illuminated constantly:
Active control. Every input operation is confirmed by
a brief flashing.
■Flashing rapidly:
There is a fault on the system.
Standard menu
In the standard menu you can choose between the fol-
lowing displays:
■Default display for heating
■Default display for DHW
■System overview
■Energy cockpit
■Favourites
In the delivered condition, the default display for
"Heating" is always shown after you switch on and tap
. If you would prefer to show a different display area,
see page 34.
Call up the standard menu as follows:
■If the screensaver is active:
Tap anywhere on the screen.
■From the main menu:
Tap .
The default display then appears.
With / you access the following display areas:
■DHW
■System overview
■Favourites
Default display "Heating"
Fig. 2
In the default display, you can adjust and check the
most frequently used settings:
■Set room temperature
■Operating program
■Time program
■Comfort mode
The temperature display (e.g. 20 °C) represents the
selected set room temperature for the current time
phase.
Operation
Programming unit
5835784

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Default display "DHW"
Fig. 3
In the default display, you can adjust and check the
most frequently used settings:
■DHW set temperature
■Time program
■One-off cylinder heat-up
Symbols and buttons
These symbols are not always displayed, but appear
subject to the system version and the operating status.
Symbols
Frost protection is active.
Central heating with reduced room temperature
Central heating with standard room temperature
Central heating with comfort room temperature
Holiday program is enabled.
Holidays at home is enabled.
Power generation is enabled.
WLAN connection is disabled.
WLAN connection is enabled (low reception qual-
ity).
WLAN connection is enabled (medium reception
quality).
WLAN connection is enabled (high reception
quality).
Buttons on the heating default display
Raises the room temperature value.
Lowers the room temperature value.
Sets the heating circuit operating program.
Sets heating circuit "Standby mode".
Enables/disables comfort mode.
Calls up the time program.
Buttons on the DHW default display
Raises the DHW temperature value.
Lowers the DHW temperature value.
Switches DHW ON/OFF.
Calls up the time program.
Enables a one-off cylinder heat-up.
Buttons in the header
Calls up the main menu.
" Heating circuit 1 2 3" Selects the heating circuit.
Note
This selection is only availa-
ble if at least 2 heating cir-
cuits can be operated.
Buttons in the footer
Returns you to the standard menu.
Takes you to the previous step in the menu or
cancels a setting that has been started.
Calls up the help text.
Calls up messages.
Standard menu:
Calls up the Energy cockpit, System overview,
DHW or your selected Favourites.
Main menu:
Scrolls through the menu.
Makes changes in the menu.
Confirms a change.
Energy cockpit
The Energy cockpit display area provides information
on the energy state of the micro CHP system and its
components. For further information, see page 19.
When you call up the Energy cockpit for the first time,
a notification appears.
■The Energy cockpit is opened once you confirm this
notification with . This notification will not appear
again.
■If you tap on Cancel, the notification will appear
again the next time you call up the Energy cockpit.
Favourites
In the "Favourites" display you can collate the menu
points that you use most frequently. For further infor-
mation, see page 21.
System overview
You can call up key system data in the "System over-
view" display area:
■System pressure
■Heat generator status
■Heat generator flow temperature
■Outside temperature
Operation
Programming unit (cont.)
5835784

16
■Heating circuits flow temperature
■DHW temperature
■Fuel cell heating output
For more information, tap on the relevant term.
Main menu
Fig. 4
In the main menu, you can check and adjust all of the
settings for the control unit's range of functions.
You can find the menu overview on page 46.
Call up the main menu as follows:
■If the screensaver is active:
Tap anywhere on the screen and then tap " ".
■If you are in the standard menu:
Tap " ".
■From anywhere in the menu:
Tap and then " ".
Operating program
Operating programs for central heating and DHW heating
Note
The operating programs for heating and DHW can be
set separately.
Symbol Operating program Function
Central heating
"Heating" The rooms of the selected heating circuit are heat-
ed in accordance with the room temperature and
time program specified (see chapter "Central heat-
ing").
"Heating circuit standby mode" ■No central heating
■Boiler frost protection is active.
DHW heating
"DHW ON" DHW is heated in accordance with the DHW tem-
perature and time program specified (see chapter
"DHW heating").
"DHW OFF" ■No DHW heating
■Frost protection for the DHW cylinder is enabled.
Note
The operating mode of the fuel cell is independent of
the selected operating program for heat generation.
The operating mode of the fuel cell is influenced by the
energy manager. See page 23. The fuel cell can only
generate power when heat transfer through the DHW
cylinder or the heating circuits is possible.
Operation
Programming unit (cont.)
5835784

17
Special operating programs
■"Screed drying"
This function is activated by your heating contractor.
Your screed is dried in line with a set time program
(temperature/time profile) suitable for the relevant
building materials. Your settings for central heating
have no effect on the duration of screed drying (max.
32 days). This function can be altered or cancelled
by your heating contractor.
■"External hook-up"
The operating program set at the control unit has
been switched over by an external device, e.g. EM-
EA1 extension. This function cannot be influenced
via the control unit.
■"Holiday program" (see page 28)
Note
The special operating programs are shown on the dis-
play in alternation with the heat generator flow temper-
ature.
In the extended menu, you can check the set operating
program under "Information" (see page 37).
Time program
You can set up a time program for the following func-
tions:
■Central heating
■DHW heating
■DHW circulation pump
■The time program allows you to divide the day into
sections. These are called time phases.
■You can select up to 4 time phases for central heat-
ing, DHW heating and DHW circulation pump per
day.
■For each time phase, you define a start and end
point.
■You can set the time program individually, to be the
same, or different, for every day of the week.
■In the main menu, you can check the time programs
under "Information" (see from page 37).
Within the time phases, the following functions are
active:
■If central heating is enabled, rooms will be heated to
the standard room temperature or comfort room tem-
perature. Outside the selected time phases, rooms
are heated with reduced room temperature.
■If DHW heating is enabled, the water in the DHW cyl-
inder will be heated to the set DHW temperature.
■The DHW circulation pump is operational.
The following explains how to input the settings for a
time program, using central heating with
heating circuit 1 as an example.
The specifics of the individual time programs can be
found in the relevant chapters.
Setting time phases
Example
■Time program for "Monday" for heating circuit 1
■Time phase 1:
06:30 to 12:00 h with standard room temperature
■Time phase 2:
15:00 to 20:00 h with comfort room temperature
In between these time phases the system heats to a
reduced temperature.
Tap the following on-screen buttons:
01. Heating circuit 1 in the header
02.
03. "Mon"
04.
05. for the start and end time of time phase 1.
The bar in the time diagram is adjusted.
06. "Normal" to select standard room temperature.
07. to create time phase 2.
Operation
Operating program (cont.)
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18
08. for the start and end time of time phase 2.
The bar in the time diagram is adjusted.
Fig. 5
09. "Comfort" to select comfort room temperature.
10. to confirm
11. to quit the time program
Copying the time program to other days of the week
You can copy a given time program to every other day
of the week.
You want to copy the Monday time program over to
Thursday and Friday.
Tap the following on-screen buttons:
1. Heating circuit 1 in the header
2.
3. "Mon"
4.
5. "Th", "Fr"
6. to confirm
7. to quit the time program
Changing the time phases
Example:
For Monday you want to change the start point of
time phase 2 to 19:00 h.
Tap the following on-screen buttons:
1. Heating circuit 1 in the header
2.
3. "Mon"
4.
5. for time phase 2
6. for the start point of time phase 2. The bar in
the time diagram is adjusted.
7. ■"Normal" for standard room temperature
or
■"Comfort" for comfort room temperature
8. to confirm
9. to quit the time program
Deleting time phases
Example:
For Monday you want to delete time phase 2.
Tap the following on-screen buttons:
1. Heating circuit 1 in the header
2.
3. "Mo" to select the required day
4.
5. for time phase 2
6. to delete the time phase
7. to confirm
8. to quit the time program
Operation
Time program (cont.)
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19
Setting "Comfort mode" (if available)
Tap the following on-screen buttons:
1. "Heating circuit 1 " in the header to select the
required heating circuit
2. The rooms will be heated with the temperature of
the last active time phase for standard room tem-
perature or comfort room temperature.
Ending "Comfort mode"
Again tap on
Or
Automatically, when switching to the next time phase
for standard room temperature or comfort room tem-
perature
Or
Ends automatically after 8 hours
Energy cockpit
In the Energy cockpit, you can check the following
information on the energy status of your micro CHP
system:
■Power exported to the grid and power drawn
■Indication of DHW cylinder heating by the gas con-
densing module or fuel cell (energy flow)
■DHW cylinder temperatures
■Energy consumption of the heat generator (gas and
electricity consumption)
■Energy statement of the internal electricity meter
Default display in the energy cockpit
Fig. 6
ADHW cylinder
BGas condensing boiler with flow temperature dis-
play
CEnergy statement checking
DFuel cell
Checking the energy status (see page 20)
EDHW cylinder heating by the gas condensing
boiler or fuel cell enabled (red arrows)
The various components present in the system are
shown as graphics. Some information on the compo-
nents is provided in the default display. To obtain addi-
tional information, tap on the relevant system compo-
nent. See also following chapters.
DHW cylinder
Checking temperatures (see page 20)
Operation
Comfort function
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20
Energy statement for power generation and power consumption
The current situation of power generation and power
consumption can be checked.
The following time periods can be called up:
■Current month
■Last month
■Current year
■Last year
Energy statement in conjunction with a power stor-
age system:
The data displayed for power consumption and power
export does not differentiate between power from the
power storage unit and power from the public grid.
1. In the standard menu, use to call up the
Energy cockpit.
2. Tap .
3. Tap on the required period.
The energy statement is displayed as a graphic.
■The grey-yellow area shows the energy con-
sumed.
indicates the energy drawn from the power
grid
■The yellow area shows the energy generated.
indicates the energy exported to the grid
DHW cylinder temperatures
You can check the following information and functions
for the DHW cylinder:
■DHW temperatures
■Current heating activity:
–Upper red arrows: Heating by the gas condensing
module
–Lower red arrows: Heating by the fuel cell
■Starting a one-off cylinder heat-up (only if cylinder
heating is not active in the current operating mode)
1. In the standard menu, use to call up the
Energy cockpit.
2. Tap on the DHW cylinder to call up further temper-
atures.
Starting a one-off cylinder heat-up
Tap the following on-screen buttons:
1. , to start a one-off cylinder heat-up by the boiler.
The DHW cylinder is heated to the set DHW tem-
perature.
To terminate cylinder heating early, tap again.
2. to confirm
Energy status of the heat generator
You can check the following information on the energy
status and operating data for the heat generator:
Gas condensing boiler:
■Current output
■Hours run
■Burner runtime
■Burner starts
■Gas consumption
–Today
–Last 7 days
–Current month
–Last month
■Gas consumption history
Fuel cell:
■Electrical output
■Thermal output
■Power exported
■Power drawn from the grid
■Hours run
■Power generation
■Fuel cell starts
■Gas consumption
–Today
–Last 7 days
–Current month
–Last month
■Gas consumption history
■Power generated
–Today
–Last 7 days
–Current month
–Last month
■Production coverage
■Demand coverage
■Power generated history
■Power exported to the grid history
Operation
Energy cockpit (cont.)
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