Brunner EWP HK User manual

Instructions for use
Extension board
Heating circuits
EWP HK
©2023

2 EWP HK Instructions for use (2.19) © 2023 Brunner GmbH

Contents
1 About this document................................................................................................. 4
1.1 Target group of the instructions....................................................................................................4
1.2 Validity of the instructions............................................................................................................. 4
1.3 Storage of the documents.............................................................................................................4
1.4 Symbols used................................................................................................................................4
1.5 Presentation rules..........................................................................................................................5
2 For your safety........................................................................................................... 6
2.1 Dangers and safety measures......................................................................................................6
2.2 Warnings........................................................................................................................................7
2.3 Regulations.................................................................................................................................... 7
3 Product description....................................................................................................8
3.1 Intended use..................................................................................................................................8
3.2 Conformity......................................................................................................................................8
3.3 Functional description....................................................................................................................8
3.4 Special adjustable functions........................................................................................................10
4 Configuration EWP HK............................................................................................ 12
5 Operation basics...................................................................................................... 13
5.1 Licenses.......................................................................................................................................13
5.2 Data protection declaration of Ulrich Brunner GmbH................................................................. 14
5.3 Display views...............................................................................................................................15
5.4 Home view overview................................................................................................................... 16
5.5 Displays and setting options under Home..................................................................................18
5.5.1 Heating circuit 3 and 4................................................................................................. 18
5.5.2 Select or create heating programs............................................................................... 20
5.5.3 Absence periods........................................................................................................... 22
5.5.4 Screed drying................................................................................................................ 23
5.5.5 Selection of lowering mode.......................................................................................... 23
6 Information and error messages............................................................................ 25
6.1 Acknowledging error messages.................................................................................................. 25
6.2 List of error codes....................................................................................................................... 26
6.3 Troubleshooting........................................................................................................................... 26
7 Technical data.......................................................................................................... 27
8 Declaration of conformity........................................................................................28
© 2023 Brunner GmbH EWP HK Instructions for use (2.19) 3

1 About this document
1.1 Target group of the instructions
These instructions for Extension board 'Heating circuits' (EWP HK) are intended for the operator of the sys-
tem.
The PIN code for the operator is 9999.
1.2 Validity of the instructions
The documentation for the product Extension board 'Heating circuits' (EWP HK) is valid from November
2015.
Ulrich Brunner GmbH reserves the right to make technical changes insofar as they serve technical progress
or are required by safety regulations.
1.3 Storage of the documents
These instructions for Extension board 'Heating circuits' (EWP HK) are kept by the operator of Extension
board 'Heating circuits' (EWP HK) after use for future reference.
IMPORTANT
READ CAREFULLY BEFORE USE
KEEP FOR FUTURE REFERENCE
The operator is responsible for keeping these operating instructions and all other applicable documents.
1.4 Symbols used
A hazard is a potential source of injury or damage to health.
A risk is the combination of a probability and the severity of injury or damage to health that can occur in a hazardous
situation.
The danger zone is the area and radius in which the boiler with/without the heating system is located, in which the
safety or health of a person could be at risk.
A person at risk is a person who is wholly or partially located in a danger zone.
The operating personnel are the persons responsible for installing, operating, setting up, maintaining, cleaning, re-
pairing or transporting the system.
In this documentation, a distinction is made between:
Operating personnel as the operator of the system, i.e. the end customer who has been instructed by the specialist
personnel and does not need to have any additional qualifications.
Operating personnel as a specialist company are the qualified specialists who are authorized to carry out the speci-
fied specialist work.
The following symbols are used in this document:
4 EWP HK Instructions for use (2.19) © 2023 Brunner GmbH

DANGER
There is a high-risk hazard that will result in serious injury or death if this hazard is not avoided.
WARNING
There is a possible medium-risk hazard that can lead to serious injury or death if this hazard is not avoid-
ed.
CAUTION
There is a low-risk hazard that can lead to minor or moderate injury if this hazard is not avoided.
NOTE
Additional helpful information
1.5 Presentation rules
The following presentation rules apply in this document for Extension board 'Heating circuits' (EWP HK):
Action instruction with several action steps
Used for activities or actions that contain several steps and where the chronological order of the individual action steps
must be adhered to.
1. first action step;
2. second action step;
3. third action step, etc.
→ Final result.
Presentation of the display texts in the instructions
The display texts are shown in bold for descriptions of the settings on the BRUNNER touch display.
© 2023 Brunner GmbH EWP HK Instructions for use (2.19) 5

2 For your safety
2.1 Dangers and safety measures
The assembly, installation, maintenance and servicing of Extension board 'Heating circuits' (EWP HK) may
only be carried out by a specialist company.
•Only carry out activities that are described in these instructions.
Electric shock
Work on the electrical installation may only be carried out by a qualified specialist company.
Avoid damage to the appliance and resulting hazards
Sprays, solvents or chlorinated cleaning agents, paints, adhesives etc. can, under unfavorable
circumstances, cause damage to the appliance.
•Do not use sprays, solvents or cleaning agents, paints, adhesives, etc. containing chlorine
in the vicinity of the appliance.
•Do not under any circumstances make any changes to parts or equipment of the heating
system if these changes could impair operational safety.
Operate the Extension board 'Heating circuits' (EWP HK) safely.
Only use the expansion board if it is in perfect technical condition and in accordance with its in-
tended use and in compliance with the operating instructions.
Look out for visible damage and contact a specialist company if necessary.
•Never remove or cover the stickers with the safety instructions on the product.
•The stickers must remain legible for the entire service life of the Extension board 'Heating
circuits' (EWP HK).
•Replace the stickers with the safety instructions immediately if they are damaged or illegi-
ble.
•Do not store any highly flammable materials (e.g. solvents, petrol cans) near the Extension
board 'Heating circuits' (EWP HK).
•This appliance is not intended for use or maintenance by children or persons with reduced
physical, sensory or mental capabilities or lack of experience and knowledge.
6 EWP HK Instructions for use (2.19) © 2023 Brunner GmbH

2.2 Warnings
Warnings in this document are emphasized by pictograms and signal words.
The pictogram and the signal word indicate the type, the source or causes of a certain action. The necessary
precautions or instructions to be followed are indicated.
The same applies to results or desired effect of an action.
These warnings refer to possible misuse of the system, which seems likely based on our experience.
Certain residual risks are also indicated.
The residual risks are inevitable:
- despite the safety measures considered in product design,
- despite the safety precautions,
- despite the complementary protective measures.
For certain points we have provided recommendations and instructions on how to use protective measures,
including personal protective equipment.
Special safety instructions and recommendations are applied for transport, handling and storage.
Instructions for safe set up and maintenance include separate protective measures too.
Structure of warnings
The warnings that precede each assembly step, are shown as follows:
Danger
Type, source and causes of danger
Measures
Call for action
→ Result or safe use
2.3 Regulations
Standards and guidelines
the relevant safety requirements of DIN, EN, DVGW, TRGI and VDE
•EN 12828 Heating systems in buildings - Design of hot water heating systems
•EN 12831 Heating systems in buildings - Method for calculating the standard heating load
•DIN 4753 Water heating systems for drinking and process water
•DIN 1988 Technical rules for drinking water installations (TRWI)
•VDI 2035 Prevention of damage in hot water heating systems
•DIN VDE 0100 Part 540 2007-06 DIN VDE 0100-540 Installation of low-voltage systems
DIN VDE 0100 Part 701 2008-10 DIN VDE 0100-701 Installation of low-voltage systems
© 2023 Brunner GmbH EWP HK Instructions for use (2.19) 7

3 Product description
3.1 Intended use
The heating circuit extension board can only be used with the BRUNNER heating center BHZ or EWP Basis.
Intended use also includes observing all information on personal and material hazards in these operating in-
structions. Also comply with all country-specific standards and safety regulations.
Read and observe all information and recommendations on installation, operation and maintenance for the
Extension board 'Heating circuits' (EWP HK) from this documentation.
3.2 Conformity
We, the manufacturer, hereby declare that Extension board 'Heating circuits' (EWP
HK) complies with the basic directives concerning the placing on the market in the
EU.
3.3 Functional description
The heating circuit extension board is responsible for the heat management of the additionally connected
heating circuits.
The heat consumers can be radiators, convectors, wall heating, underfloor heating or swimming pool heat-
ing.
The heating circuit is equipped with an outdoor temperature-controlled control system. In heating mode, the
flow temperature for the controlled heating circuit is determined from the outside temperature and the set
heating curve. The base point and the design point can be entered separately for each heating circuit. The
user can choose individually from different heating systems for each heating circuit or make an individual set-
ting.
The EWP heating circuit is the control in the event that additional heating circuits are installed. So if there are
already 2 (usually existing) heating circuits, the extension board controls the 3rd or 4th heating circuit; how-
ever, this is also possible for a 5th or 6th etc. heating circuit. heating circuit.
There is the option of heating operation with outside temperature control and the option of heat dissipation.
When using the expansion board, the software version on the system must be Rel. 5.0 or higher.
8 EWP HK Instructions for use (2.19) © 2023 Brunner GmbH

© 2023 Brunner GmbH EWP HK Instructions for use (2.19) 9

3.4 Special adjustable functions
Frost protection
The Extension board 'Heating circuits' (EWP HK) is equipped with heating circuit frost protection. This has
priority over all selected settings. As soon as the specified outside temperature (frost protection) is reached,
the inactive circulation pumps of the heating circuits are automatically switched on. If the circulation pumps
are already active, this function is omitted.
Summer/winter changeover
If the outdoor temperature exceeds the summer switchover threshold, the heating circuit pumps are de-
activated. An individual summer/winter switchover value can be set for the heating circuit. There is also
the option of setting summer or winter permanently. If the outside temperature falls below the summer off
switchover threshold by more than 1°C, winter mode is started automatically.
Standard programs for the heating circuits
The 3 standard programs can be used separately for each individual heating circuit. Three time intervals
can be selected for each day of the week. You can easily enter the standard programs on the display, in the
home view, without a PIN code and also name them individually. The switching times of a standard program
can be changed or added to. Three further program levels are available for other individual program requests
(New 1, 2 or 3).
Dry screed
If a heating circuit is equipped with underfloor heating, a special drying program can be set. As soon as the
drying process is complete, the setting is automatically reset to “No”. The active drying program for the rele-
vant heating circuit is shown on the display. The necessary parameters are preset at the factory, but can be
changed.
Continuous operation
In this setting, the system automatically switches to day mode for an adjustable period of time (hours). The
continuous operation function starts immediately and is automatically deactivated after the preset time period
has elapsed. The day/night changeover takes place automatically.
Absence
With the absence program, the desired heating circuit or an existing external hot water cylinder can be oper-
ated in frost protection mode for an adjustable period of time (days) during absence. This means that the rel-
evant heating circuit is switched off, but frost protection is active as it has the highest priority. The absence
function starts immediately and is automatically deactivated after the preset period of time has elapsed. The
system switches to automatic heating mode. The absence program can be interrupted/cancelled or resumed.
An active vacation program is shown on the display. The vacation days or absence time are displayed and
counted down.
Calibration offsets
Carry out a calibration to guarantee a match between the measured values recorded and the measured val-
ues output by the sensors. If there is a temperature deviation of the sensor, a change in degree Celsius in-
crements is possible under Settings.
10 EWP HK Instructions for use (2.19) © 2023 Brunner GmbH

Corrosion protection
Corrosion protection of all pumps and mixers is very important to ensure a long service life for the entire
heating system.
When corrosion protection is active, all pumps and mixers are monitored by the function modules for a short
time. During corrosion protection, the mixers and pumps are briefly activated and realigned on the first Mon-
day of each month at 1:01.
Select lowering mode
When connecting a heating circuit extension board, it is possible to set the system to reduced operation or
night mode. This option is available for every heating circuit.
For this purpose, the setting Cool-down protection is provided with a presetting of the T outdoor limit value
for the outdoor temperature. You can enter a winter/summer switchover for night, so to speak. Below the limit
temperature, the flow temperature is lowered to night mode.
The Standard selection ensures that the flow temperature is lowered in night mode.
© 2023 Brunner GmbH EWP HK Instructions for use (2.19) 11

4 Configuration EWP HK
Before configuring the heating circuit extension board, the BRUNNER central heating unit BHZ or the basic
extension board must be configured.
Example for the 3rd and 4th heating circuit; analo-
gous for any other heating circuits
For the configuration level of the EWP heating cir-
cuits, follow the path:
Settings + PIN entry / Configuration / EWP heating
circuit no. 1 (= Settings + PIN-Code / Konfigura-
tion / EWP Heizkreis Nr. 1)
Heating circuit 3 / 4 (=Heizkreis 3 / 4) = Selection depending on the installed heat output
system: No;
Radiator;
Convector;
Wall (= wall heating);
Floor (= underfloor heating);
Constant (= constant flow temperature);
Swimming pool
Confirm the entry with O.K. / End
Name HK 3 / 4 = by clicking on the white button, it
is possible to name the relevant heating circuit using
the keyboard;
Heat removal HC 3 / 4 (= W-Abfuhr HK 3 / 4) - option for heat removal in the relevant heating circuit - with
Yes / No selection; if the limit temperatures are exceeded in the buffer tank, an attempt is made to remove
the heat through the enabled heating circuit within the permitted temperature range.
Power HC3 / 4 (= Leistung HK3 / 4) - Selection of power measurement for heating circuit 3: Yes / No -
click in the dialog window. No= the sensor pairs for heating circuit a: E14 and E8. or for heating circuit b:
E15 and E9, not evaluated.
12 EWP HK Instructions for use (2.19) © 2023 Brunner GmbH

5 Operation basics
The images shown in the installation and operating instructions (including display views) do not claim to be an exact
representation of the displays on your system. These depend on the installed system components, their measurement
functions, control variants and set parameters. In some cases, these system parts are not part of the standard ver-
sions, but are provided as optional accessories.
5.1 Licenses
For the visualization of our user interface we use an open source operating system, which is subject to differ-
ent license models.
You can see the licenses used in the software under the menu:
„Settings“ → “Display“ → “Licenses/Contact“
Written Offer
(open source software)
Our product contains software and sourcecode whose rightholders license it under the terms of
the GNU General Public License, version 2 (GPLv2), version 3 (GPLv3), the GNU Lesser Gen-
eral Public License, version 2.1 (LGPLv2.1), version 3 (LGPLv3) and other open source soft-
ware licenses.
If you send us a request for oversending the licensed source code of the software, please use
the following address:
Ulrich Brunner GmbH
Zellhuber Ring 17-18
84307 Eggenfelden
[email protected]
Upon request, we will send you a CD-ROM with the provided source codes. You have to pay the
costs for material, packaging and delivery.
The offer is valid for at least three years from the date of delivery of the product on which the
software is installed, and as long as we can offer spare parts and customer service for this prod-
uct, or from the time of downloading the software from our homepage.
Please include the type of product for which you want to receive the source code in your re-
quest.
© 2023 Brunner GmbH EWP HK Instructions for use (2.19) 13

5.2 Data protection declaration of
Ulrich Brunner GmbH
Notes on protecting your personal data
Ulrich Brunner GmbH always endeavors to save and process only the personal data that are necessary and
indispensable or that are required to be stored and processed by law.
We strictly adhere to the requirements of the General Data Protection Regulation (GDPR) and the Federal
Data Protection Act (BDSG and BDSG new).
We do not pass on personal data to third parties; unless we are required to do so by law or by court order.
Persons under the age of 18 should only transfer personal data to us with the consent of their legal
guardians. If there is reason for a complaint, it can be addressed to the responsible state authority.
The required contact details can be found on the website: https://www.lda.bayern.de. If other sources of in-
formation or services (websites, apps, etc.) from Ulrich Brunner GmbH are used, the data protection declara-
tions listed also apply.
Purpose of data processing
We only collect, store and process personal data for the express or implicitly agreed purpose. These are e.g.
Address data for processing an information request, or for making offers, invoicing etc. or bank data for pro-
cessing payment transactions. Without an independent declaration of consent, this data is not e.g. used to
send as newsletter or similar purpose.
Saving and deleting
We only store personal data for as long as is necessary to fulfill the agreed purpose or as required by law. If
the agreed purpose is fulfilled or there is no longer a legal basis for storage, this data will be deleted as far as
possible. If deletion is not technically possible, the data will be marked in such a way that further processing
is impossible.
Deletion requests, requests for information, requests for changes or revocation of a declaration of consent
can be directed at any time to the data protection officer of Ulrich Brunner GmbH.
Responsible for data processing
Ulrich Brunner GmbH
Zellhuber Ring 17-18
D-84307Eggenfelden
E-Mail: [email protected]
Tel.: [phone]
You can contact the data protection officer under: daten-
[email protected].
14 EWP HK Instructions for use (2.19) © 2023 Brunner GmbH

5.3 Display views
Illustration 1: Home view with
EWP heating circuit no. 1;
Illustration 2: Home view with EWP heating circuit
no. 1, extended home view (heating circuits 3 and 4)
If more than one EWP HK is connected (here
with EWP HK no. 2 with additional 2 heating
circuits), these are displayed in the Home view
and are visible in the “extended view”.
Illustration 3: Home view EWP heating circuits
no. 1, EWP heating circuits no. 2 - extend-
ed view, heating circuits 3 and 4 plus 5 and 6
© 2023 Brunner GmbH EWP HK Instructions for use (2.19) 15

5.4 Home view overview
Menu bar buttons:
1Home page;
Home view; button to start all applications;
2Log boiler - heat generator;
Button for the customer parameters of the log boiler
3Heating - Heat consumer;
Button for the customer parameters of the heating, incl. programs of the heating circuits
16 EWP HK Instructions for use (2.19) © 2023 Brunner GmbH

4Hot water - heat consumer;
Button for the customer parameters of the hot water supply; incl. programs for hot water
5
Settings;
Access is via a PIN (different for the operator or specialist);
Enables access to various parameter levels for configuration and parameterization;
6Info;
If error messages are present, the Info button is highlighted in orange.
7Network and myBrunner status: no symbol = no network; gray globe = in network, but offline with mybrun-
ner; blue globe = online with mybrunner
8 Button for the home view of the BRUNNER boiler, the entire boiler control system
9Button for the home view of the heating system; the entire control of the heat consumers and heat gener-
ators;
Graphics of the Home view :
10 Log boiler
11 Outdoor temperature display
12 Heating circuits: Name HK + program used + current temperature
13 Supply lines;
the coloring shows their operating status (red=active; grey=inactive)
14 Arrow for overall view of the system (for more than 2 heating circuits or installed EWP-HK)
15 Hot water tank + temperature display
16 System cylinder; buffer + temperature display
17 Heating circuits of the EWP-HK: Name HK + program used + current temperature or output (alternating
displays)
© 2023 Brunner GmbH EWP HK Instructions for use (2.19) 17

5.5 Displays and setting options under Home
5.5.1 Heating circuit 3 and 4
To set heating circuit 3 or 4, click on the graphic for heat-
ing circuit 3 or 4
or
the Heating button from the menu bar and then the Heat-
ing circuit 3 or 4 button
:
If several heating circuit extension boards are connected,
the existing buttons are displayed and the settings can be
made in the same way as for heating circuit 3.
Short name M.E. Explanations De-
fault
Page 1
Heating circuit 1 Button for switchingthe respective heating circuits on or off; ON
Output kW Display of the power measurement
Setback mode If the setback type described below is selected, the heating circuits run
through the relevant setback mode (gray fields in the heating program)
Off = no setback mode desired
Standard
The flow temperature is lowered in night mode
(grey fields in the heating program). HK pumps
continue to run. Parameter: Setback (5 K)
Cooling protection
The heating circuit pump remains switched off
until the outdoor temperature has reached the
outdoor T threshold value. If the temperature
falls below the outdoor T threshold value, the
pump switches on again and the flow tempera-
ture is lowered. This means that the standard
setback mode comes into effect.
Frost protection
In set-back mode (grey fields in the heating pro-
gram), the heating circuit is always switched off.
The heating circuit pumps are deactivated. If
the temperature falls below the “Frost protec-
tion down ” parameter (factory setting 4°C), the
heating circuit switches to frost protection mode.
Stan-
dard
18 EWP HK Instructions for use (2.19) © 2023 Brunner GmbH

Summer from °C
Setting option for the outdoor temperature threshold for switching from
heating to summer mode. Setting range with sliding bar (min-max):
1-40.
If the outdoor temperature exceeds the summer from switchover
threshold, the respective heating circuit pumps are deactivated. An indi-
vidual summer/winter switchover value can be set for each heating cir-
cuit.
17
Program Definition of the heating program, according to the stored operating
hours for the respective programs. There are 3 factory programs (Fam-
ily, Single, Seniors) and three individually assignable heating programs
(New1, New2, New3). Tap to enter the selection:
Family New 1
Single New 2
Seniors New 3
Details: Chapter “Selecting or creating heating programs”
Family
Warmer/Colder °C Additional increase or reduction of the existing flow temperature; with
slide bar: Setting range from: (min/max): (-10) to 10; 0
Absence time Days
Enter the days of absence; setting range with sliding bar (min/max/factor): 0-42/1.
Only frost protection is retained. The absence function starts immediately and is
automatically deactivated after the preset period has elapsed; the system switch-
es to automatic heating mode.
The corresponding heating circuit is displayed as Off in the Home view. The re-
maining active absence time is displayed in the Absence button with the remain-
ing days (countdown). Details: Chapter “Absence time”
Continuous operation Std
Setting of the hours in which the heating circuit remains permanently in
operation. Setting range with sliding bar (min/max): 0-48. The remaining
period for continuous operation is displayed in the menu for the relevant
heating circuit (countdown). After the set time has elapsed, the stored
time program is automatically used.
17
Consumption* kWh Display of the consumption values (kWh) for the selected heating circuit at specif-
ic time intervals:
Today Current year
Yesterday Last year
Last 5 days 2 years ago
Last 4 weeks
Last 6 months
Heating programs By clicking on the program, further programs can be called up or individually cre-
ated (see chapter “Selecting or creating new heating programs”)
Page 2:
Heating circuit*
The name of the heating circuit that has been configured in the heating system:
selectable: Radiator, Convector, Wall heating, Floor, Constant, Heat dissipation,
No;
HK1 Pump* The status of the corresponding heating pump (here for heating circuit
1): Off or On On
Display mode* Sec. Time to switch between the power and temperature display in the heat-
ing circuit field; setting range with sliding bar (min-max/factor): 1-60/1; 30
*are only available when an EWP-HK is connected
© 2023 Brunner GmbH EWP HK Instructions for use (2.19) 19

5.5.2 Select or create heating programs
Daytime 1 Daytime 2 Daytime 3
Program name Day On Off On Off On Off
Family Mo-Th 5:30 22:00
Fr 5:30 23:00
Sa 6:30 23:00
Su 7:00 22:00
Single Mo-Th 6:00 8:00
Fr 6:00 8:00
Sa 7:00 23:30
Su 8:00 22:30
Seniors Mo-Su 5:30 23:00
New 1
New 2
New 3
off The selected heating circuit is deactivated! Frost protection is active.
Individual program settings:
For each heating circuit and every hot water program it is possible to enter your desired times and program
names.
Define heating program
On the display you can enter your own programs for existing heating circuits.
20 EWP HK Instructions for use (2.19) © 2023 Brunner GmbH