Glowworm MiSet SRT 380f/2 User manual

en Operating and installation
instructions
MiSet
SRT 380f/2
0020325510_00 - 14.12.2021

2Operating and installation instructions 0020325510_00
Operating and
installation instructions
Contents
1 Safety ............................................ 3
1.1 Action-related warnings ................. 3
1.2 Intended use .................................. 3
1.3 General safety information............. 4
1.4 -- Safety/regulations .................. 5
2 Product description..................... 6
2.1 Which nomenclature is used?........ 6
2.2 What is the effect of the frost
protection function? ....................... 6
2.3 What do the following
temperatures mean?...................... 6
2.4 What is a zone? ............................. 6
2.5 What is the circulation?.................. 6
2.6 What is meant by "time period"? .... 6
2.7 Preventing malfunctions ................ 7
2.8 Setting the heat curve.................... 7
2.9 Display, control elements and
symbols.......................................... 7
2.10 Operating and display functions .... 9
3 -- Electrical installation,
set-up .......................................... 16
3.1 Checking the scope of delivery .... 16
3.2 Selecting the lines........................ 16
3.3 Polarity......................................... 16
3.4 Installing the radio receiver
unit ............................................... 16
3.5 Installing the control..................... 17
4 -- Start-up ............................... 19
4.1 Prerequisites for starting up......... 19
4.2 Running the installation
assistants..................................... 19
4.3 Changing the settings later .......... 19
5 Fault and maintenance
messages ................................... 19
5.1 Fault message ............................. 19
5.2 Maintenance message................. 19
5.3 Changing the batteries................. 19
6 Information about the
product ....................................... 21
6.1 Observing and storing other
applicable documents .................. 21
6.2 Validity of the instructions ............ 21
6.3 Data plate .................................... 21
6.4 Serial number .............................. 21
6.5 CE marking .................................. 21
6.6 Guarantee and customer
service ......................................... 21
6.7 Recycling and disposal ................ 21
6.8 Product data in accordance with
EU Ordinance no. 811/2013,
812/2013...................................... 22
6.9 Technical data ............................. 22
Appendix ............................................... 23
A Troubleshooting,
maintenance message .............. 23
A.1 Troubleshooting ........................... 23
A.2 Maintenance messages............... 23
B -- Troubleshooting,
maintenance message .............. 24
B.1 Troubleshooting ........................... 24
B.2 Troubleshooting ........................... 24
B.3 Maintenance messages............... 24
Index ...................................................... 25

0020325510_00 Operating and installation instructions 3
1 Safety
1.1 Action-related warnings
Classification of action-re-
lated warnings
The action-related warnings
are classified in accordance
with the severity of the pos-
sible danger using the follow-
ing warning signs and signal
words:
Warning symbols and signal
words
Danger!
Imminent danger to life
or risk of severe personal
injury
Danger!
Risk of death from electric
shock
Warning.
Risk of minor personal
injury
Caution.
Risk of material or envir-
onmental damage
1.2 Intended use
In the event of inappropriate or
improper use, damage to the
product and other property may
arise.
The product is intended for us-
ing an eBUS interface to control
a heating installation with heat
generators from the same man-
ufacturer.
The control controls based on
the installed system:
–Heating
–Domestic hot water genera-
tion
–Circulation
Intended use includes the fol-
lowing:
–observance of accompanying
operating, installation and
maintenance instructions for
the product and any other
system components
–installing and setting up the
product in accordance with
the product and system ap-
proval
–compliance with all inspection
and maintenance conditions
listed in the instructions.
Intended use also covers in-
stallation in accordance with the
IP code.
This product can be used by
children aged from 8 years
and above and persons with
reduced physical, sensory or
mental capabilities or lack of
experience and knowledge if
they have been given supervi-
sion or instruction concerning
use of the product in a safe way
and understand the hazards in-
volved. Children must not play
with the product. Cleaning and
user maintenance work must

4Operating and installation instructions 0020325510_00
not be carried out by children
unless they are supervised.
Any other use that is not spe-
cified in these instructions, or
use beyond that specified in this
document, shall be considered
improper use. Any direct com-
mercial or industrial use is also
deemed to be improper.
Caution.
Improper use of any kind is
prohibited.
1.3 General safety
information
1.3.1 Danger caused by
improper operation
Improper operation may present
a danger to you and others, and
cause material damage.
▶Carefully read the enclosed
instructions and all other ap-
plicable documents, particu-
larly the "Safety" section and
the warnings.
▶Only carry out the activities
for which instructions are
provided in these operating
instructions.
1.3.2 Risk
caused by inadequate
qualifications
The following work must only
be carried out by competent
persons who are sufficiently
qualified to do so:
–Set-up
–Dismantling
–Installation
–Start-up
–Decommissioning
▶Proceed in accordance with
current technology.
Work and functions that must
only be carried out or set by the
competent person are marked
by the symbol.
1.3.3 Risk of injury caused by
batteries
If the batteries are recharged
contrary to instructions, there is
a risk of serious personal injury.
▶Do not recharge the batteries.
▶Do not combine batteries with
other battery types.
▶Do not combine new and
used batteries.
1.3.4 Risk of material damage
▶Do not short-circuit the con-
nection contacts in the pro-
duct's battery compartment.
1.3.5 Risk of material damage
caused by acid
▶Remove any dead batteries
from the product and dispose
of these properly.
▶Remove the batteries if you
intend to store the product
and not use it for an extended
period.

0020325510_00 Operating and installation instructions 5
1.3.6 Danger caused by
improper operation
Improper operation may present
a danger to you and others, and
cause material damage.
▶Carefully read the enclosed
instructions and all other ap-
plicable documents, particu-
larly the "Safety" section and
the warnings.
▶As the end user, you should
only carry out those activities
for which these instructions
provide instructions and that
are not marked with the
symbol.
1.4 -- Safety/regulations
1.4.1 Risk of material damage
caused by frost
▶Do not install the product in
rooms prone to frost.
1.4.2 Risk of material damage
caused by using an
unsuitable tool
▶Use the correct tool.
1.4.3 Regulations (directives,
laws, standards)
▶Observe the national regula-
tions, standards, directives,
ordinances and laws.

6Operating and installation instructions 0020325510_00
2 Product description
2.1 Which nomenclature is used?
–Control: Instead of SRT 380f/2
2.2 What is the effect of the frost
protection function?
The frost protection function protects the
heating installation and flat from frost dam-
age.
At outdoor temperatures
–Below 4 °C for longer than four hours,
the control switches the heat generator
on and regulates the target room tem-
perature to at least 5 °C.
–Above 4 °C, the control does not switch
the heat generator on, but it monitors
the outdoor temperature.
2.3 What do the following
temperatures mean?
Desired temp. is the temperature to which
you want to heat up the living rooms.
Set-back temp. is the level below which
the temperature in the living rooms does
not fall when outside of the time periods.
Flow temp. is the temperature at which
the heating water leaves the heat gener-
ator.
2.4 What is a zone?
A building can be divided into multiple
areas, which are known as zones. A dif-
ferent requirement can be placed on the
heating installation in each zone.
Examples for dividing into zones:
–Underfloor heating (zone 1) and a ra-
diator system (zone 2) are available in
one building.
–A building is made up of several self-
contained residential units. Each resid-
ential unit has its own zone.
2.5 What is the circulation?
An additional water pipe is connected to
the domestic hot water pipe and forms a
circuit with the domestic hot water cylin-
der. A circulation pump facilitates the con-
tinuous circulation of domestic hot water
through the pipework system which means
that hot water is immediately available,
even at more distant draw-off points.
2.6 What is meant by "time
period"?
Example of heating mode in the mode:
Time-controlled
24 °C
18:0016:30 22:30
16 °C
21 °C
20:00
A
B
5
1
2
3
4
A Time
B Temperature
1 Desired temper-
ature
2 Set-back tem-
perature
3 Time period 2
4 Outside of the
time periods
5 Time period 1
You can divide a day up into several time
periods (3) and (5). Each time period can
comprise an individual start time and end
time. The time periods must not overlap.
You can assign a different desired temper-
ature (1) to each time period.
Example:
16:30 to 18:00; 21 °C
20:00 to 22:30; 24 °C
The control regulates the living rooms to
the desired temperature within the time
periods. In the times outside of the time
periods (4), the control regulates the living

0020325510_00 Operating and installation instructions 7
rooms to the lower set-back temperature
(2) that is set.
2.7 Preventing malfunctions
▶Do not cover the control with furniture,
curtains or other objects.
▶If the control is installed in the living
room, open all of the thermostatic ra-
diator valves in this room fully.
2.8 Setting the heat curve
A
B
15 10 5 0 -5 -10 -15 -20
20
30
40
50
60
70
80
90
1.2
1.5
1.822.533.54
0.8
1.0
0.4
0.2
0.1
0.6
A Outside temper-
ature °C
B Target flow tem-
perature °C
The figure shows the possible heat curves
of 0.1 to 4.0 for a target room temperature
of 20 °C. If, for example, heat curve 0.4 is
selected, a flow temperature of 40 °C is
maintained at an outdoor temperature of -
15 °C.
A
B
CD
18
22
20
0.4
70
60
50
40
30
15 10 5 0 -5 -10 -15 -20
A Outdoor temper-
ature °C
B Target flow tem-
perature °C
C Target room
temperature °C
D Axis a
If the heat curve 0.4 is selected and 21 °C
is specified for the target room temperat-
ure, the heat curve is then translated, as
shown in the figure. The heat curve is dis-
placed according to the value of the tar-
get room temperature along axis a which
is angled at 45°. At an outdoor temperat-
ure of -15 °C, the control system provides
a flow temperature of 45 °C.
2.9 Display, control elements and
symbols
ĬĪƀ
ĬįŀĪ ƀ
īĬƀ
2.9.1 Control elements
–Calling up the menu
–Back to the main menu
–Confirming a selection/change
–Saving set values
–One level back
–Cancelling input
–Navigating through the menu struc-
ture
–Reducing or increasing the set
value
–Navigating to individual num-
bers/letters
–Calling up help
–Calling up the time programme as-
sistant
–Switching on the display
–Switching off the display
The control element is located on the
upper side of the control.
Active control elements light up green.
Press once: You access the basic
display.

8Operating and installation instructions 0020325510_00
Press twice: You access the menu.
2.9.2 Symbols
Battery state of charge
Signal strength
Time-controlled heating active
Maintenance required
Fault in the heating installation
Contact the competent person

0020325510_00 Operating and installation instructions 9
2.10 Operating and display functions
Note
The functions described in this section are not available for all system configura-
tions.
The product has two adjustment and display levels.
The end user level contains information and setting options that you require as the end
user.
-- The installer level is reserved for the competent person. It is protected by a code.
Only competent persons may change any settings in the installer level.
To call up the menu, press twice.
2.10.1 CONTROL menu item
MENU →CONTROL
→Zone
→Mode: →Manual →Desired temperature: °C
Uninterrupted retention of the desired temperature
→Time-contr. →Weekly planner
→Set-back temperature: °C
Weekly planner: Up to 12 time periods and desired temperatures can
be set per day
The competent person sets how the heating installation behaves out-
side of the time period in the Set-back mode: function.
In Set-back mode: means:
–Eco: The heating is switched off outside of the time periods. Frost
protection is activated.
–Normal: The set-back temperature applies outside of the time peri-
ods.
Desired temperature: °C: Applies within the time periods
Factory setting: Set-back temperature: °C 15 °C
→Off
Heating is switched off, domestic hot water continues to be available,
frost protection is activated
→Name of zone Changing the name Zone 1, which was set at the factory
→Absence →All: Applies only to any zones within the specified time period
→Zone: Applies for the selected zone in the specified time period
During this time, heating mode runs at the defined set-back temperat-
ure. Domestic hot water mode and circulation are switched off.
Factory setting: Set-back temperature: °C 15 °C
→DHW
→Mode: →Manual →DHW temperature: °C
Uninterrupted retention of the domestic hot water temperature
→Time-contr. →Domestic hot water weekly planner
→DHW temperature: °C

10 Operating and installation instructions 0020325510_00
MENU →CONTROL
→Mode: →Time-contr. →Circulation weekly planner
Domestic hot water weekly planner: Up to three time periods can be
set per day
DHW temperature: °C: Applies within the time periods
Domestic hot water mode is switched off outside of the time periods
Circulation weekly planner: Up to three time periods can be set per
day
The circulation pump pumps hot water to the draw-off points within the
time periods
Outside of the time periods, the circulation pump is switched off
→Off
Domestic hot water mode is switched off
→Hot water boost Heating up the water in the cylinder once
→Ventilation boost Heating mode is switched off for 30 minutes.
→Time programme
assistant
Programming of the desired temperature for Monday–Friday and Sat-
urday–Sunday; the programming applies for the time-controlled Heat-
ing,DHW and Circulation functions.
Overwrites the weekly planner for the Heating,DHW and Circulation
functions.
→Installation off Installation is switched off. Frost protection remains active.
2.10.2 INFORMATION menu item
MENU →INFORMATION
→Current temperatures
→Zone
→DHW temperature
→Water pressure: bar
→Energy data
→Power consumption →Heating
→DHW
→Installation
→Fuel consumption →Heating
→DHW
→Installation

0020325510_00 Operating and installation instructions 11
MENU →INFORMATION
Energy consumption display
In the display and in the app that can also be used, the control displays values for the energy
consumption.
The control displays an estimation of the values for the installation. Among other things, the
values are influenced by the following:
–The installation/design of the heating installation
–User behaviour
–Seasonal environmental conditions
–Tolerances and components
External components, such as external heating pumps or valves, and other consumers and ap-
pliances in the household are still not taken into consideration.
The deviations between the energy consumption that is displayed and the actual energy con-
sumption may be significant.
The specifications for the energy consumption are not suitable to be used to create or compare
energy billing.
The following can be read: Current month,Last month,Current year,Last year,Total
→Burner status:
→Control elements Explanation of the control elements
→Menu introduction Explanation of the menu structure
→Competent person contact info
→Serial number
2.10.3 -- SETTINGS menu item
MENU →SETTINGS
→Installer level
→Enter access
code
Access to the installer level, factory setting: 00
→Competent per-
son contact info
Entering contact details
→Service date: Enter the next service date for a connected component, e.g. heat gen-
erator
→Fault history Faults are listed in chronological order
→Installation con-
figuration
Functions (→Installation configuration menu item)
→Screed drying Activate the Screed drying profile function for freshly laid screed in
accordance with the construction regulations.
The control regulates the flow temperature independently of the out-
door temperature. Setting screed drying (→Installation configuration
menu item)
→Change code
→Language, time, display
→Language:
→Date: After the power is switched off, the date is retained for approx. 30
minutes.

12 Operating and installation instructions 0020325510_00
MENU →SETTINGS
→Time: After the power is switched off, the time is retained for approx. 30
minutes.
→Display brightness:
→Daylight saving
time:
→Automatic
→Manual
For outdoor temperature sensors with DCF77 receivers, the Daylight saving time: function
is not used. The conversion to summer/winter time takes place via the DCF77 signal. The
change takes place:
–On the last weekend in March at 02:00 (daylight saving time)
–On the last weekend in October at 03:00 (standard time)
→Offset
→Room temperat-
ure: K
Comparison of the temperature difference between the measured
value in the control and the value for a reference thermometer in the
living room.
→Outdoor temper-
ature: K
Comparison of the temperature difference between the measured
value in the outdoor temperature sensor and the value for a reference
thermometer in the living room.
→Factory settings The control resets all of the settings to the factory settings and calls up
the installation assistant.
Only the competent person can call up the installation assistant.
2.10.4 -- Installation configuration menu item
MENU →SETTINGS →Installer level →Installation configuration
→Installation
→Water pressure: bar
→eBUS components List of eBUS components and their software versions
→Adaptive heat curve: Automatic fine adjustment of the heat curve. Prerequisite:
–The suitable heat curve for the building is set in the Heat
curve: function.
–The correct zone is assigned to the control in the Zone
assignment: function.
–Expanded is selected in the Room temp. mod.: func-
tion.
→Control: R.temp.contr It is controlled via the room temperature.
Weath.-
comp.
It is controlled via the outdoor temperature
as soon as an outdoor temperature sensor is
connected.
→OT constant heating: °C If the outdoor temperature falls below the set temperature
value, the Heat curve: is used to regulate to a room tem-
perature of 20 °C outside of the time periods.
OT ≤set temperature value: No night set-back or total shut-
down
Factory setting: Off

0020325510_00 Operating and installation instructions 13
MENU →SETTINGS →Installer level →Installation configuration
→Desired preheating temp.: This is where you can select the desired pre-heating time
temperature in order to activate the heating before the
heating programme first starts. The aim is to reach the
room temperature at the desired time. The system auto-
matically calculates the required prerun time (max. 4 hrs)
based on prior experience, the current room temperature
and the time remaining until the programme changes.
Factory setting: Off
→Heat generator 1
→Status:
→Current flow temperature: °C
→Circuit 1
→Status:
→Target flow temperature: °C
→OT switch-off threshold: °C Enter the upper limit for the outdoor temperature. If the
outdoor temperature rises above the set value, the control
deactivates heating mode.
→Heat curve: The heat curve (→section "Product description") is the de-
pendence of the flow temperature on the outdoor temperat-
ure for the desired temperature (target room temperature).
→Min. target flow temperat-
ure:°C
Enter the lower limit for the target flow temperature. The
control compares the set value with the calculated target
flow temperature, and regulates to the larger of these val-
ues.
→Max. target flow temperat-
ure:°C
Enter the upper limit for the target flow temperature. The
control compares the set value with the calculated target
flow temperature, and regulates to the smaller of these val-
ues.
→Set-back mode:
→Eco The heating function is switched off and the
frost protection function is activated.
At outdoor temperatures that are below
4 °C for longer than four hours, the control
switches the heat generator on and regulates
to the Set-back temperature: °C. At an
outdoor temperature above 4 °C, the control
switches the heat generator off. The monit-
oring of the outdoor temperature remains
active.
Heating circuit behaviour outside of the time
periods. Prerequisite:
–Time-contr. is activated in the Heating →
Mode: function.
–Active or Inactive is activated in the
Room temp. mod.: function.
If Expanded is activated in the Room temp.
mod.:, the control regulates to the target
room temperature 5 °C independently of the
outdoor temperature.

14 Operating and installation instructions 0020325510_00
MENU →SETTINGS →Installer level →Installation configuration
→Normal The heating function is switched on. The con-
trol regulates to the Set-back temperature:
°C.
Prerequisite:
–Time-contr. is activated in the Heating →
Mode: function.
The behaviour can be adjusted separately for each heating circuit.
→Room temp. mod.:
→Inactive
→Active Adjusting the flow temperature based on the
current room temperature.
→Expan-
ded
Adjusting the flow temperature based on the
current room temperature. The control also
activates/deactivates the zone.
–The zone is deactivated: Current room
temperature + 2/16 K > set room temper-
ature
–Zone is activated: Current room temperat-
ure < set room temperature - 3/16 K
The installed temperature sensor measures the current room temperature. The control calcu-
lates a new target room temperature that is used to adjust the flow temperature.
–Difference = Set target room temperature - current room temperature
–New target room temperature = Set target room temperature + difference
Prerequisite: The control is assigned to the zone in which the control is installed in the Zone
assignment: function.
The Room temp. mod.: function is ineffective if No assignmt is activated in the Zone as-
signment: function.
→Zone
→Zone activated: Deactivate zones that are not required. All existing zones
appear in the display.
→Zone assignment: Assign the control to the selected zone. The control must
be installed in the selected zone. The control system also
uses the room temperature sensor for the assigned unit. If
no zone has been assigned to the control, the Room temp.
mod.: function is ineffective.
→Zone valve status:
→DHW
→Cylinder: If there is an existing domestic hot water cylinder, the Act-
ive setting must be selected.
→Target flow temperature: °C
→Circulation pump:

0020325510_00 Operating and installation instructions 15
MENU →SETTINGS →Installer level →Installation configuration
→Anti-legio. day: Define the days on which you want the anti-legionella func-
tion to run. On these days, the water temperature is in-
creased to above 60 °C. The circulation pump is activated.
The function ends after 120 minutes at the latest.
If the Absence function is activated, the anti-legionella
function is not carried out. As soon as the Absence func-
tion ends, the anti-legionella function is carried out.
→Anti-legio. time: Define the time at which you want the anti-legionella func-
tion to run.
→Radio link
→Control reception strength: Read the reception strength between the radio receiver unit
and outdoor temperature sensor.
–4: The radio link is within the acceptable range. If the
reception strength is < 4, the radio link is not stable.
–10: The radio link is highly stable.
→OT sensor reception
strength:
Read the reception strength between the radio receiver unit
and outdoor temperature sensor.
–4: The radio link is within the acceptable range. If the
reception strength is < 4, the radio link is not stable.
–10: The radio link is highly stable.
→Screed drying profile Setting target flow temperature per day in accordance with
the construction regulations

16 Operating and installation instructions 0020325510_00
3 -- Electrical installation,
set-up
Obstacles weaken the reception strength
between the radio receiver unit and the
control or outdoor temperature sensor.
Only qualified electricians may carry out
the electrical installation.
The heating installation must be decom-
missioned before work is carried out on it.
3.1 Checking the scope of delivery
Quant-
ity
Contents
1 Control
1 Radio receiver unit
1 Fixing material (2 screws and 2 wall
plugs)
4 Batteries, LR06
1 Documentation
▶Check that the scope of delivery is com-
plete.
3.2 Selecting the lines
Line cross-section
eBUS line (fine-
wire, flexible, made
of copper)
0.75 to 1.5 mm²
eBUS line (single-
wire, made of cop-
per)
1.0 to 1.5 mm²
Sensor cable (fine-
wire, flexible, made
of copper)
0.75 to 1.5 mm²
Sensor cable
(single-wire, made
of copper)
1.0 to 1.5 mm²
Line length
Sensor lines ≤50 m
Bus lines ≤125 m
3.3 Polarity
When connecting the eBUS line, there is
no need to pay attention to the polarity. If
the connection cables are switched over,
communication will not be adversely af-
fected.
3.4 Installing the radio receiver unit
The radio receiver unit can be installed on
a heat generator.
When installing the radio receiver unit on a
heat generator, the radio receiver unit can
also be wall-mounted outside of wet envir-
onments in order to improve the reception
strength and it can be connected using an
extension cable.
3.4.1 Installing the radio receiver
unit and connecting to the heat
generator
Condition: The heat generator has an option to con-
nect it directly and is not installed in the wet environ-
ment.
A
B
▶Install the radio receiver unit below the
heat generator.
▶Connect the radio receiver unit to the
direct connection below the heat gener-
ator. The LED lights up green after 20
seconds at the latest.

0020325510_00 Operating and installation instructions 17
Condition: The heat generator does not have an
option to connect it directly and/or is installed in the
wet environment.
▶Remove the flap on the radio receiver
unit in accordance with the figure.
▶Remove the existing cable for the direct
connection.
▶Connect the eBUS cable, which is to be
provided on-site, in accordance with the
figure.
▶Seal the flap on the radio receiver unit.
60 mm
2,6 mm
▶Install the wall-mounting screws outside
of the wet environment in accordance
with the figure.
▶Fit the radio receiver unit onto the wall-
mounting screws.
X100
X24
▶When opening the electronics box in the
heat generator, proceed as described in
the installation instructions for the heat
generator.
▶Use an extension cable to connect the
radio receiver unit to the eBUS interface
in the heat generator's electronics box
in accordance with the figure. The LED
lights up green after 20 seconds at the
latest.
3.5 Installing the control
1. Read the operating concept and the
operating example described in the
operating instructions for the control.
2. Stand next to the radio receiver unit.
A
B
3. Open the control's battery compart-
ment as shown in the figure.
4. Insert the batteries, making sure that
the poles are the right way round.
◁The installation assistant starts.
5. Close the battery compartment.
6. Select the language.
7. Set the date.
8. Set the time.

18 Operating and installation instructions 0020325510_00
◁The installation assistant switches
to the Control reception strength
function.
Condition: Wireless outdoor temperature sensor
available
▶If a wireless outdoor temperature
sensor is available, this must be paired.
To do this, follow all of the installation
instructions in its instructions.
▶To pair the wireless outdoor temper-
ature sensor, press the button on the
radio receiver unit. The LED flashes
green.
▶Activate the outdoor temperature
sensor as described in its instructions.
The LED on the radio receiver unit
flashes briefly. Once the pairing process
is complete, the LED no longer lights
up.
▶Go to the chosen installation site for the
wireless outdoor temperature sensor.
▶If the reception strength at the chosen
installation site is < 4, find a new in-
stallation site for the outdoor temper-
ature sensor –one that has a reception
strength of ≥4.
▶Install the outdoor temperature sensor
at the installation site.
Determining the control's installa-
tion site in the building
9. Choose an installation site that meets
the following requirements.
–Internal wall of the main living room
–Installation height: 1.3 to 1.5 m
–Not in direct sunlight
–Not affected by heat sources
Determining the reception strength
of the control at the chosen install-
ation site
10. Go to the chosen installation site for
the control.
11. Close all doors behind you on the way
to the installation site.
12. Press the wake-up/sleep button on
the upper side of the unit if the display
is off.
Condition: The display is on, The display shows Ra-
dio communication interrupted
▶Make sure that the power supply is
switched on.
Condition: The display is on, Control reception
strength < 4
▶Find an installation site for the control
that is within the reception range.
Condition: The display is on, Control reception
strength ≥4
▶Mark the position on the wall where the
reception strength is sufficiently high.
Attaching the unit mounting
bracket to the wall
A
B
13. Remove the unit mounting bracket
from the control as shown in the fig-
ure.
A
B
C
Ø6
14. Secure the unit mounting bracket in
accordance with the figure.

0020325510_00 Operating and installation instructions 19
Fitting the control
A
B
15. Fit the control to the unit mounting
bracket as shown in the figure, mak-
ing sure that it clicks into place.
4 -- Start-up
4.1 Prerequisites for starting up
–The control and, if required, the outdoor
temperature sensor have been installed
and wired.
–Start-up of all system components (ex-
cept for the control) is complete.
4.2 Running the installation
assistants
The installation assistant is at the Lan-
guage: query.
The control's installation assistant takes
you through a list of functions. For each
function, you should choose the set value
that is best suited to the heating installa-
tion being installed.
4.2.1 Completing the installation
assistant
Once you have gone through the installa-
tion assistant, Select the next step. ap-
pears on the display
Installation configuration: The installa-
tion assistant switches to the system con-
figuration for the installer level, in which
you can further optimise the heating in-
stallation.
Installation start: The installation assist-
ant switches to the basic display and the
heating installation works with the values
you have set.
4.3 Changing the settings later
All settings that you have made via the in-
stallation assistant can be changed again
at a later date via the end user or installer
level.
5 Fault and maintenance
messages
5.1 Fault message
with the text of the fault message
appears in the display.
You can find fault messages under: MENU
→SETTINGS →Installer level →Fault
history
Troubleshooting (→Appendix)
5.2 Maintenance message
with the text of the maintenance mes-
sage appears in the display.
Maintenance message (→Appendix)
5.3 Changing the batteries
Danger!
Risk of death caused by un-
suitable batteries!
If batteries are replaced with the
wrong type of battery, there is a
risk of explosion.
▶Ensure that you use the cor-
rect battery type when repla-
cing batteries.

20 Operating and installation instructions 0020325510_00
▶Dispose of used batteries in
accordance with the instruc-
tions in this manual.
Warning.
Risk of chemical burns
caused by leaking batteries!
Corrosive battery fluid may leak
out of used batteries.
▶Remove any used batteries
from the product as soon as
possible.
▶Before extended periods
away from home, also re-
move batteries that are still
charged from the product.
▶Avoid skin or eye contact
with leaking battery fluid.
A
B
1. Remove the control from the unit
mounting bracket as shown in the
figure.
A
B
2. Open the battery compartment as
shown in the figure.
3. Always change all the batteries at the
same time.
–Only use LR06 batteries
–Do not use rechargeable batteries
–Do not combine the batteries with
other battery types
–Do not combine new and used bat-
teries
4. Insert the batteries, making sure that
the poles are the right way round.
5. Do not short-circuit the connection
contacts.
6. Close the battery compartment.
A
B
7. Clip the control into the unit mounting
bracket as shown in the figure, mak-
ing sure that it clicks into place.