OUMAN S203 User manual
Saving energy, creating comfort
Controller for three circuits
- control for 2 heating circuits
- 1 domestic hot water control
USER MANUAL
S203
XM315G: Version 3.0->
2
Turn the control knob
to navigate in the menu.
A maximum of ve views can be displayed
with the favourite views key. Default settings
for favourite views show menus for each cir-
cuit, which include all default settings that can
be changed by the user as well as information
about measurements and the regulator’s op-
eration.
Press the control knobto
enter the menu and ac-
cept the changes.
Control knob and OK
Cancel button
Basic view
Holding the key down for an ex-
tended period of time returns the
regulator to its basic mode. The
display shows the basic view, the
background light of the display
dims and the keyboard locks if the
locking function is in use.
part of user manual. The issues related to service mode are at the end of it. In addition there are issues,
which are only intended for persons in maintenance or who has in-depth knowledge of the control pro-
The S203 is a heating controller for 3 circuits (two heating circuits and one hot water circuit). Wiring and
Outdoor temp.
H1 Supply water
H2 Supply water
DHW Supply water
Automatic
Automatic
Automatic
-12.4°C
45.2°C
32.8°C
58.0°C
13:51 08.03.2021 Selection >
You can move from one favourite view to another
by pressing the key.
Calibration
Calibration
Calibration
-12.4°C
45.2°C
32.8°C
58.0°C
13:51 08.03.2021
The calibration time is always performed when the
controller is started and every Monday at 9.00. The
calibration duration is 1.1 times the
actuator running time.
Outdoor temp.
H1 Supply water
H2 Supply water
DHW Supply water
Selection >
OK
OK
3
1 Display menus 4
1.1 Basic view 4
1.2 Favourite views 5
1.3 Menu structure 6
2 Inputs and outputs 7
3 Regulation of supply water in heating circuits 9
3.1 Info 9
3.2 Heating curve 11
3.3 Setting values 13
3.4 Control mode 14
3.5 Time programs 15
3.5.1 Weekly schedule 15
3.5.2 Exception schedule 16
3.5.3 Special days 16
3.5.4 Temp. level according to time program 16
4 Domestic hot water control 17
4.1 Time programs 19
5 Relay control 21
6 Trends 23
7 Alarms 24
8 System settings 27
8.1 Setting date, time and language 27
8.2 Text message (SMS) settings 28
8.3 Network settings 29
8.4 Display settings 32
8.5 Type information 32
8.6 Lock code 32
9. Connection guide 33
9.1 Connections and conguration 37
10 Service settings 41
11 Restore settings and updates 47
12 Turn the display unit 48
Remote control options: 48
Optional accessories 49
Text message quick reference 50
Index 51
Tecnical information 52
Language/ Kieli
Palauta varmuuskopio
Kytkennät ja käyttöönotto
Ota valinnat käyttöön
suomi/Finnish >
>
>
>
Press OK. Select language and press OK.
The device restart.
More information see page 27
More information see page 47
More information see page 37
More information see page 47
Aloituskysely
Start up wizard
Language English/English >
Restore backup >
Connections and conguration >
Take selections into use >
Contents
4
Outdoor temp.
H1 Supply water
H2 Supply water
DHW Supply water
Automatic
Automatic
Automatic
-12.4°C
45.2°C
32.8°C
58.0°C
13:51 08.03.2021 Selection > 2
Central factors related to controlling heating are visible in the regulator’s basic view. When the unit is idle
state (keys have not been touched for a while) the display shows the basic view.
the most important information for monitoring operation of the unit. Favourite views that can be changed
by users enable them to easily access desired menus. Setting values needed by the user can easily be
found in the versatile menu structure.
1 Display menus
• A blinking exclamation
point means the unit has
active alarms.
• The number indicates the
number of active alarms.
Symbol indicates that
alarms are disabled.
Temperature measurements
enable quickly determining
proper operation of the circuit.
Circuit control. This shows whether the
circuit’s heating level has been contin-
uously forced to a particularly level or if
the controller is in manual mode.
Alarm indication
1.1 Basic view
Ouman S203 can generate alarms for several dierent reasons. In
the event of an alarm, an alarm window pops up showing detailed
alarm information and a beeping alarm signal goes on, if the alarm
sound is not turned o (see page 27).
If there are several unacknowledged alarms, the latest activated
alarm is always shown in the display. As soon as all active alarms
have been acknowledged, the alarm window disappears and the
alarm signal goes o.
Alarm signal of all active alarms may also be muted by pressing Esc
button. When you press Esc, the alarm signal stops and the last alarm
windows disappear from the display.
You may look into the alarms later by going to ”Alarms” > ”Active
alarms”. If an alarm has not been acknowledged, an exclamation
mark will appear in the beginning of the row.
Alarm notice
Deviation alarm
PRIO1 GROUP1
S203.TE02.DA111
H1 Supply water=10.2 °C
Received: 08.11.2021 02:27
Press OK to acknowledge the alarm
When controller is congured, it’s possible to disable alarms. When
the alarms are disabled, the symbol will be displayed in the main
menu. Alarms are enabled in the service mode -> Alarm settings ->
Alarms: Disabled/Enabled.
Acknowledging alarms: Press OK
and the alarm sound will me mut-
ed. If the reason for the alarm is still
present, the exclamation point in the
top right will continue to blink.
5
You can easily navigate from the basic view to the desired menu using the favourite view function. You can
navigate from one favourite view to another by pressing the
ESC key until the basic view appears.
Navigate to the view you want to add to your favourite views. Hold down the key for an extended period
of time until the ”Save view in memory location” menu appears. Select the memory location where you want
to add the favourite view and press OK. If you select a location where a favourite view has already been
saved, the new favourite view will replace the existing one.
Basic view
H2 Info
H1 Info
DHW Info
Setting a favourite view
Your own favourite view
H1 Info
H2 Info
---SUPPLY WATER -------------------------------
According to curve
Calculated water setting
---- MEASUREMENTS -------------------------------
---SUPPLY WATER -------------------------------
cording to curve
Calculated water setting
---- MEASUREMENTS --------------------------------
>
30.7 °C >
30.7 °C >
>
31.4 °C >
31.4 °C >
DHW Measurements
Domestic hot water control
Supply water temperature
Circulation water temp.
------ ACTUATOR CONTROL --------------------
58.0 °C>
56.5 °C >
50.0 °C>
Alarm history
02.12.2020 10:11:42 Sensor fault H1 Supply w >
05.12.2020 11:22:40 Sensor fault H1 Return >
2
1.2 Favourite views
You can’t set service menus as your favourite view. You can’t set any favourite views as long as the service code
is active. To deactivate the service code press Esc -button until the main menu is shown and background light of
the display is dimmed.
Outdoor temp.
H1 Supply water
H2 Supply water
DHW Supply water
Automatic
Automatic
Automatic
-12.4°C
45.2°C
32.8°C
58.0°C
13:51 05112020 2
Selection >
6
Main menu Page 7
In the user manual
Page 9
Page 9
Page 17
Page 24
Page 27
Inputs and outputs
H1 Control circuit
H2 Control circuit
DHW Domestic hot water control
Relay 1 control
Relay 2 control
Trends
Alarms
System settings
Service
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IInputs and outputs
Home/Away mode Home >
----------------------------------------------------
Outdoor temp. -18.2 °C
H1 Supply water 35.1 °C
H1 Return water temperature 22.0 °C
H1 Room temperature 21.5 °C
H2 Supply water 36.5 °C
...
H1 Control circuit
H2 Control circuit
Info
Heating curve
Setting values
Control mode
Time programs
Info
Heating curve
Setting values
Control mode
Time programs
>
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>
Automatic >
>
>
>
>
Automatic >
>
DHW Domestic hot water control
Info
Setting values
Control mode Automatic
Trend display
Time programs
>
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>
>
>
Alarms
Active alarms
Acknowldge all alarms
Alarm history
Reset alarm history
Alarm receivers
Routing schedule
Alarm signal
>
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On>
System settings
Time 17:01
Date 27.09.2021
Daylight saving In use
Language English/ English
SMS settings
Network settings
Display settings
Type info
Lock code
>
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Not in use >
1.3 Menu structure
Page 21
Page 21
Page 23
Relay 1 control
Relay 2 control
Function Heating thermostat (TR5)
Setting value
Outdoor temp.
TR5 Control
Function Deft. therm.&time ctrl (TR6)
Temperature limit 1
Temperature limit 2
Time program
Outdoor temp.
TR6 control
21.0 °C >
11.0 °C >
Off >
5.0 °C >
-5.0 °C >
>
11.0 °C >
Off >
Trends
Outdoor temp.
----------------------------------------------------
H1 Supply water
H1 Return water
...
>
>
>
The service mode is
for the professional
service persons and it
includes information and
parameters which are not
needed on daily basis.
The service code must be
given in order to access the
service menu.
Service
7
2 Inputs and outputs
-
vice menu (see p. 36-39).General measurements are temperature
The default names of the measurements can be changed accord-
ing to use case.
If the sensor is not connected or is defective, the measurement
value shown will be -50°C (cross sensor) or +130 °C (sensor circuit
shorted). If a measurement is in manual mode, a hand image is
shown in the beginning of the line.
Inputs and outputs
Inputs and outputs are shown by the regulator in circuit-specic
groups. First H1, then H2 and last DHW
Informational general measurements, which can be used for
several purposes. Measurements can be named in the service
menu. (Navigate: Service -> Connections and conguration).
1
1
2
2
2
2
Main menu
Inputs and outputs
H1 Control circuit
H2 Control circuit
DHW Control circuit
>
>
>
>
Inputs and outputs
------ INPUTS AND OUTPUTS -----------------------
Outdoor temp. -18.2 °C
H1 Supply water 35.1 °C
H1 Return water temperature 22.0 °C
H1 Room temperature 21.5 °C
H2 Supply water 28.1 °C
H2 Return water temperature 21.1 °C
...
>
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Measurement Range Measurement information
Home/Away mode Home/Away Home-Away mode. By pressing OK you can change the status of the
Home/Away mode. The mode can also be changed by Home/Away-switch
or by text message “Home” or “Away” when a GSM-modem (optional) is
available.
--------INPUTS---------------
Outdoor temp. -50...+130 °C Measured current outdoor temperature.
H1 /H2 Supply water -50...+130 °C Current temperature of the water entering the heating network.
H1 /H2 Return water temperature -50...+130 °C Current temperature of the water returning form the heating network.
H1 /H2 Room temperature -50...+130 °C Current room temperature.
DHW Supply water -50...+130 °C Current domestic hot water temperature.
DHW Circulation water temp. -50...+130 °C When there is no consumption, the measurement shows the temperature
of DHW return water. During consumption, the measurement will show the
mixed temperature of cold water and return water, in which case the meas-
urement is used in so-called anticipation to improve the regulation result.
H1/H2 DH Return -50...+130 °C Temperature of return water after the district heat exchanger or other freely
named temperature measurement.
DH Supply water temp. -50...+130 °C Temperature of water coming from the district heating plant.
DH Return water temp. -50...+130 °C Temperature of water returning to the district heating plant.
M10 (M11) Switch alarm
mode
O/On Information of the alarm contact.
General compensation 0...100% General compensation input value.
Measurement M11 (M12,
M13)
-50...+130 °C Freely nameable general measurement.
Pressure switch mode O/ On When the pressure of the network lowers below the pressure alarm level,
the state of the switch is changed to on and an alarm is activated.
Pressure measurement 0.... 16 bar Pressure of the heating network.
P2.1 (P2.2, P3.1, P3.2) Pump stop/run Status of the pump. (Run information is displayed if M15, M16, DI1 or DI2 is
selected as “Pump Indication”).
DI 1 (DI 2) Water volume The measured amount of water consumption (cumulative value).
DI 1 (DI2) Energy measure-
ment
The measured amount of energy consumption (cumulative value).
Moisture sensor wet/dry Shows the state (wet/dry) of the moisture sensor.
8
Seis/Käy
If a GSM modem is connected to the controller, you can read meas-
urement information with a mobile phone. (If the device ID is in use,
add the device ID in front of the key word, e.g., TC01 Inputs)
Send a message: Inputs
The controller sends the current measurement information to your
mobile phone.
Same way send a message: Outputs
You can also change Home/Away mode.
Send a message: Home. The controller sends a response mes-
sage, which shows, that Home/Away -control is on Home-mode.
Similarly you can send a message: Away.
Key word:
Home:
Home-Away-control = Home/
INPUTS
OUTPUTS
HOME
AWAY
Outputs:
H1 = Actuator control = 25 % /
H2 Actuator control = 26 % /
DHW Actuator control = 52 %/
P2.1 Pump control = On
Inputs:
Outdoor temp. -18.2 °C /
H1 Supply water 35.1 °C/ H1
Return water 22.0 °C /
H1 Room temperature 21.5 °C /
Measurement Range Measurement information
----OUTPUTS-----
Actuator control 0....100 % Current actuator 1 control
Actuator control 2 0....100 % Current actuator 2 control. If series driving is in use, actuator 1 will rst
open the valve and the controller will then start up actuator 2.
P2.1 (2.2, P3.1, P3.2)
Pump control
O/On Pump control status. The information is displayed if the pump control is
selected and measurement selection in measurement channel M15, M16,
DI1 or DI2 is “Pump alarm” or “Not in use”. Information is not displayed if
measurement selection is “Pump indication” (=run information).
TR5 (6) control (nameable) O/On Relay control mode at the moment. TR5 control is a relay control 1 and TR6
is the relay control 2.
Solenoid valve control Open/ Closed When the moisture sensor detects the moisture, the valve is driven to
closed position. If there is a 3-point controlled actuator in H1 control circuit,
the solenoid valve can`t be connected to the controller.
9
independently (H1 and H2).
Regulation of the temperature of supply water is controlled by
the outside temperature. Use of room temperature measure-
ments keeps room temperature more consistent.
3 Regulation of supply water in heating circuits
3.1 Info
water temperature control. The starting point is the supply water
temperature according to the outdoor temperature (according to
the heating curve).
If a room sensor is connected to the controller, you can check
which factors currently determine the room temperature setting
value at the time of inspection.
In addition the info menu contains the measurement temperature
of actuators.
H1 (H2) Control circuit-> Info
Main menu
Inputs and outputs
H1 Control circuit
H2 Control circuit
DHW Control circuit
Trends
Alarms
System settings
Service
>
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>
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>
>
H1 Control circuit
Info
Heating curve
Setting values
Control mode
Time program
>
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Factors eecting the supply water
temp. Explanation
According to curve Supply water temperature setting according to the curve at the current outdoor
temperature.
Eect of parallel shift Eect of parallel shift on the supply water temperature.
Eect of time program Eect of weekly or exception schedule mode on the temperature of supply water.
Near the end of the temperature reduction time, the pre-increase operation can
increase the temperature of supply water.
Force control eect Supply water has been forced permanently to the desired temperature reduction
level (see Control mode selection).
Away -control eect ”Away” control for reduction of supply water temperature. The trigger can come
from the Home/Away switch, the controller or be sent as a text message (see 41).
Outdoor temp. delay eect The eect of the outdoor temperature delay on the supply water temperature.
Floor heat. anticipate Eect of anticipation of oor heating on the temperature of supply water.
Eect of autumn drying Eect of automatic autumn drying on the supply water temperature.
Return water compensation Increase in supply water temperature due to return water compensation.
Heat exhanger DH Return comp. eect Supply water increase caused by temperature compensation for return water
from district heating exchanger.
Eect of room compensation Eect of room compensation on the supply water.
Room comp. time adjustment Additional correction for more precise room compensation based on realised
regulation (eect of I-regulation).
General compensation eect General compensation can be based for example on wind, solar or pressure
measurements.
Bus compensation eect The amount of required compensation is determined by an external device to the
S203, for example from bus compensation to weather compensation.
Min limit eect Supply water temperature increase due to the minimum limit.
Max limit eect Supply water temperature drop due to the maximum limit.
Calculated supply water setting Current supply water temperature determined by the controller.
Controller is stopped for summer When the regulator is in summer function mode, the supply water information
says ”Controller is stopped for summer.”
Controller is in manual control Control circuit mode is set to ” Manual control”.
10
Send a message: H1 Info.
The controller sends a supply water info from the H1 heating circuit
to your mobile phone that shows current supply water tempera-
ture at the present and the factors eecting supply water control.
The message also includes the measurements which are aecting
the supply water control and the actuator control.
The message cannot be changed or sent back to the controller.
Key words:
H1 info:
--- H1 SUPPLY WATER-------------
According to curve 35.1 °C/
Away -control effect -6.0 °C/
Calculated supply water
setting = 29.1 °C.
--- MEASUREMENTS --------------
Supply water = 35.2 °C
Outdoor temp.= -10.7 °C
--- ACTUATOR CONTROL----------
Actuartor control = 20 %
H1 INFO
H2 INFO
Factors eecting the room temperature Explanation
----- ROOM TEMPERATURE --------------
Room temperature setting Room temperature setting set by the user.
Time program eect on room temp. Room temperature drop by weekly or exception schedule.
Away -control eect Home/Away mode for reduction of room temperature. The trigger can come from
the controller (see Inputs and outputs-> Home-Away-control), from the Home/
Away switch or be sent as a text message.
Force control eect Room temperature has been forced permanently to the desired reduction in
room temperature (see Control mode selection, p.13).
Eect of autumn drying Eect of automatic autumn drying on room temperature.
Calculated room temperature Current room temperature setting determined by the controller.
----- MEASUREMENTS -------------------
Supply water temperature Current measured supply water temperature.
Outdoor temp. The measured outdoor temperature. Outdoor temperature data is displayed if the
delayed outdoor temperature is not used in supply water control.
Delayed outdoor temperature If the heating mode is set to radiator heating, the delayed temperature meas-
urement can be used in supply water control. Typically 2 hours delay time is
used (time can be set in service menu). In supply water control the controller
uses delayed measurement as an outdoor temperature.
Anticipated outdoor temperature If the heating mode is set to oor heating, the anticipated temperature meas-
urement can be used in supply water control. Typically 2 hours anticipation
time is used (time can be set in service menu). In supply water control the con-
troller takes into account the outdoor temperature change rate.
Room temperature The measured room temperature or room temperature from the bus. The
measurement is not necessarily taken into use in all control processes.
Delayed room temperature The oating average of room temperature. The controller uses this value, when
calculating the room compensation demand (the delay time of room tempera-
ture measurement is adjustable, default 0.5 hours).
Return water temperature Presents measured return water temperature.
----- ACTUATOR CONTROL ------------
---
Actuator control Current actuator control.
Actuator control 1 (2) Current actuator 2 control. If serial-driving is in use, actuator 1 will rst open the
valve and the controller will then start up actuator 2.
Actuators control 50 % means that the valve 1 is totally open and the valve 2 is totally closed. 100%
means that both valves are open.
----- PUMPS-------------------
P2.1 (3.1) Pump The state of the pump.
P2.2 (3.2) Pump The state of the reserve pump/alternative pump.
P2.1 (3.1) Pump control Control of the pump.
P2.2 (3.2) Pump control Control of the reserve pump/alternative pump.
P2.1 (3.1) Run time Running time for pump from the counter.
P2.2 (3.2) Run time Running time for reserve/ alternative pump from the counter.
Pump in progress Indicates which of the pumps is running in P2.1 or P2.2 (H1)/ P3.1 or P3.2 (H2 circuit).
11
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tures is set with heating curve. With S203 the heating
curve can be adjusted exactly to meet the needs of the facility
H1 (H2) Control circuit-> Heating curve
3.2 Heating curve
Wait at
least 24 hours before readjusting the settings. Especially in build-
ings with foor heating, the delays in room temperature changes
are quite long. The supply water minimum limit setting ensures
that pipes will not freeze. The maximum limit setting ensures that
excessively hot water that could damage structures (e.g. parquet
in case of foor heating) does not enter the heating system.
If room temperature drops, make the curve steeper.
(Set higher values for supply water temperature at the outdoor
temperatures -20 °C, -10 °C and 0 °C).
H1 Control circuit
Supply water information
Measurements
Heating curve
Setting values
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If room temperature rises, make the curve less steep.
(Set lower values for supply water temperature at the outdoor
temperatures -20 °C, -10 °C and 0 °C).
Setting Factory setting Explanation
5-point curve
With 5-point curve you can change the curve to the outdoor temperature
values -20°C and +20°C as well as to three other outdoor temperatures be-
tween -20°C and +20°C. To change the outdoor temperature point, press
OK for a long period of time.
Min limit 18 °C Minimum allowed supply water temperature. A higher minimum tempera-
ture is used in moist rooms and tiled rooms than in, e.g., rooms having a
parquet oor to ensure a comfortable temperature and removal of moisture
in the summer.
Max limit 45 °C Maximum allowed supply water temperature. The maximum limit prevents
the temperature in the heating circuit from rising too high, preventing dam-
age to pipes and surface materials. If, e.g., the heating curve setting is in-
correct, the maximum limit prevents excessively hot water from entering
the network.
-20 =58 °C 54 °C
0 =41 °C 39 °C
+20 = 18 °C
Min.limit: 18 Max limit: 75
+20 -200°C
20
40
60
80
-10= 50 °C 47 °C
+10=28 °C
-20 =58 °C 62 °C
0 =41 °C 43 °C
+20 = 18 °C
Min.limit: 18 Max limit: 75
+20 -200°C
20
40
60
80
-10= 50 °C 53 °C
+10=28 °C
Heating curve
Heating curve
Heating curve
-20 = 38 °C
0 = 28 °C
+20 = 18 °C
Min.limit: 18 Max limit: 45
-10= 34 °C
+10=24 °C
+20 -200°C
20
40
60
80
12
Settings of the heating curves of different heating
modes
The preseted heating curves are typical average curves for the heating
mode in question. The curve may need to be adjusted to suit your build-
ing. The setting should be done during the cold period and if the room
curve is appropriate when the room temperature is maintained constant
although the outdoor temperature changes.
Radiator heating
Floor heating
Floor heating, moist. rooms
Radiator heating, steep curve
+20 -200°C
20
40
60
80
Typical heating curve settings:
5-point curve
4. Floor heating, moist. rooms
Heating curve
-20 = 31 °C
0 = 27 °C
+20 = 24 °C
Min limit: 23 Max limit: 45 +20 -200°C
20
40
60
80
3. Floor heating, normal curve
Heating curve
-20 = 33 °C
0 = 27 °C
+20 = 20 °C
Min limit: 18 Max limit: 45 +20 -200°C
20
40
60
80
1. Radiator heating, normal (default)
Heating curve
-20 = 50 °C
0 = 37 °C
+20 = 18 °C
Min limit: 18 Max limit: 75
-10= 44 °C
+10=28 °C
+20 -200°C
20
40
60
80
2. Radiator heating, steep curve
Heating curve
-20 = 58 °C
0 = 41 °C
+20 = 18 °C
Min limit: 18 Max limit: 75 +20 -200°C
20
40
60
80
-10= 50 °C
+10= 26 °C
-10= 30 °C
+10= 23 °C
-10=29 °C
+10=25 °C
Send message: H1 Heating curve
The controller sends a message showing curve settings.
You can change the settings by replacing the setting value with a
new one and sending a message back to the controller.
S203 will make the requested changes and send a new message
showing the changes made.
H1 Heating curve
H1 Heating curve
Suppl.w. (-20) = 50°C/
Outd.t. 2 = -10°C/
Suppl.w. 2 = 44°C/
Outd.t. 3 = 0 °C/
Suppl.w. 3 = 37°C/
Outd.t. 4 = 10°C/
Suppl.w. 4 = 28°C/
Suppl.w. (+20) = 18 °C
Minimum limit = 18°C/
Maximum limit = 45°C/
H2 Heating curve
H1 Heating curve
Suppl.w. (-20) = 54°C/
Outd.t. 2 = -10°C/
Suppl.w. 2 = 47°C/
Outd.t. 3 = 0 °C/
Suppl.w. 3 = 39°C/
Outd.t. 4 = 10°C/
Suppl.w. 4 = 23°C/
Suppl.w. (+20) = 20 °C
Minimum limit = 18°C/
Maximum limit = 45°C/
13
3.3 Setting values
Changing a setting:
H1 (H2) Control circuit-> Setting values
The regulator has two types of setting values: those that are al-
ways visible and those than can only be changed using a service
code (see page 35).
Both circuits have the same circuit-specic setting values.
• Choose the desired setting by turning the control knob.
• Press OK to go to the view where editing is possible. Change the
setting.
• Press OK to accept the change.
• If you want to exit edit mode without making any changes, press
ESC.
H1 Control circuit
Info
Heating curve
Setting values
Control mode Automatic
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Send a message: H1 Settings.
The controller sends settings to your mobile phone. Editing the setting val-
ues: write the new setting in place of the old setting and send a message
back to the controller. The controller sends back the setting as a conr-
mation.
H1 Setting values
H2 Setting values
H1 Setting values:
Room temperature = 21.5°C/
Temperature drop = 3.0°C/
Key words:
Setting Factory
setting Range Explanation
Room temperature setting 21.5 5... 50 °C Basic room temperature setting for the controller set by the user.
This setting value is not visible unless room compensation is in use.
The room compensation can be taken in use from the “Room tem-
perature settings” menu.
Summer function outdoor t.
limit
19.0 10 ... 35 °C Summer function outdoor temperature limit. When the meas-
ured or forecast outdoor temperature exceeds the outdoor tem-
perature limit of the summer function, the valve will be closed
and the circulation water pump will stop as selected. The sum-
mer function is switched o, when the temperature drops 0.5 °C
under summer function outdoor temperature limit. In this case,
the pump is switched on and the valve returns back to control
mode.
Pump summer stop In use In use/
Not in use
If the controller is connected to control the pump, the pump can
be stopped when the summer function is active.
Valve summer close In use In use/
Not in use
The setting value is used to select whether or not the valve is
closed when the summer function is in use.
Autumn dry eect on supply wa-
ter
Autumn dry eect on room temp.
4.0
1.0
0... 25 °C
0.0... 1.5 °C
The setting value denes how much the autumn dry function in-
creases supply water temperature. If room temperature regula-
tion is in use, the user sets how much the room temperature is
increased.
Room compensation settings
Room compensation In use In use/
Not in use
With room compensation it’s dened whether room temperature af-
fects regulation of supply water. If the measured room temperature dif-
fers from its setting value, room compensation corrects the tempera-
ture of the supply water.
Room compensation ratio 4.0 0...7 Coecient which is used in applying the dierence between
room measurement and the room setting value to the supply
water setting value. For example, if room temperature in radiator
heating is one degree below the setting value, supply water is raised
by four degrees.
Temperature drops
Temperature drop 3.0 0... 40 °C Temperature drop of supply water, which can start due to time pro-
grams or a Home/Away text message command or when selecting
continuous temperature drop as the circuit’s control mode. If room
temperature measurement has been taken into use, the temperature
drop is given directly as a room temperature drop.
Home/Away control H1: In use
H2: Not in
use
In use/
Not in use
The Home/Away control changes the temperature levels. If transmit-
ter for general compensation is connected to controller, it’s not pos-
sibe to connect Home/Away switch. In this case Home/Away mode
can be switched with SMS or from ”Inputs and Outputs” menu.
14
3.4 Control mode
H1 (H2) Control circuit-> Control mode
Manual mechanical
Automatic control is the mode that is used normally. You may
change automatic control to manual control here, and drive the
valve to the desired position. You can also force control to the de-
sired temperature level. A continuous mode command bypasses
possible scheduling programmes.
Control mode
Automatic
Continuous normal temp.
Continuous temp. drop
Manual
Manual mech. control
Send a message: H1 Control mode
The controller sends a return message in which a * appears in front
of the control mode in use. If you want to change the control mode,
move the * in front of the desired control mode and send the mes-
sage back to the controller. The controller will then send a return
message showing that it has switched to the desired control mode.
H1 Control mode:
*Automatic/
Continuous normal temp./
Continuous temp. drop/
Manual 0 %
H1 CONTROL MODE
H2 Control mode
H1 Control mode:
Automatic/
Continuous normal temp./
Continuous temp. drop/
*Manual 20 %
Mechanical manual control option is taken into use in the controller.
Connections and conguration -> H1 (H2) Actuator control -> Manu-
al mech. control ”Available”.
If you want the voltage controlled actuators to be controlled by man-
ual mechanical control, H1 actuator power supply must come from
strip connector 55 and H2 actuator power supply from strip connec-
tor 59. The controller switches o the power supply, when the con-
trol mode is manual mechanical control.
The valve position is set in the actuator when using mechanical man-
ual control.
Control mode Explanation
Automatic S203 controls the supply water temperature automatically according to
the heating demand and time programs.
Continuous normal temp.
Continuous temp. drop
Forced normal heating. All time programs are by-passed.
Forced temperature drop. All time programs are by-passed.w
Manual
Control mode
Continuous normal temp.
Continuous temp. drop
Manual
H1 Control circuit
Heating curve
Setting values
Control mode Manual
Actuator manual position 42%
>
>
>
>
The controller runs the valve to manual position. The controller has the lat-
est manual position in the memory. You can change the actuator manual
position by changing the setting value.
In manual mode the valve’s position is changed with the setting value ”H1
(H2) Manual mode position.”
H1 Control circuit
Heating curve
Setting values
Control mode Automatic
Time programss
>
>
>
>
15
Weekly programmes have a general graph view as well as a edit
view showing the exact time when the new state will be executed.
In the graph view, exceptions to normal temperature of control
are shown as bars.
Graph view
Editing view
Time Mode
21:00 Temp.drop
06:00 Normal temp.
00:00 Add new
MT W TS
F S
Browsing a weekly schedule:
Turn the control knob to browse a weekly schedule. If you wish to see
the exact switch times or you wish to change, delete or add switch
times, press OK at any weekday.
Temp.drop Weekly schedule
Monday
Tuesday
Wednesda
Thursday
Friday
Saturday
Sunday
0 3 6 9 12 15 18 21 24
Weekly schedules, special days and exception schedules can be
added to heating regulation in the S203. You can lower tempera-
tures desired times by using these time programs.
3.5.1 Weekly schedule
H1 (H2) Control circuit-> Time programs -> Weekly schedule
3.5 Time programs
H1 (H2) Control circuit-> Time programs
Editing view
Deleting a switch time:
1. Turn the control knob to move to the switch time you wish to de-
lete and press OK.
2. Press OK at temperature level and select ”Delete switch time”.
3. Press OK at the end of the row.
Tip: Use the pre increase function. With the pre increase function the controller automatically increases sup-
ply water temperature at the end of the reduction phase. Normal temperature has already been reached when
the heating mode changes to normal heat.
Set switch time
Set state
(=desired
temp. level)
Select
day(s)
Accept
Adding a new switch time:
1. Press OK at the “Add new” row.
2. You can select the value you want to change using the control
knob. By pressing OK you can change the value. Press ESC to
return without changing the value.
3. Set the switch time (set hours and minutes separately).
Press OK to accept.
4. Press OK and then turn the control knob to set the temperature
level. Press OK to accept.
5. Press OK at each weekday you wish to choose.
6. Press OK at the end of the row to accept the new time program.
Note! Remember also to dene when the control returns to au-
tomatic (=normal). Press Esc to exit.
Editing a weekly schedule:
1. Turn the control knob to move to the value you wish to change
and press OK.
2. Turn the control knob to change the time and temperature.
Press OK to accept.
3. Press the OK button to change the day of the week.
4. Press Esc to exit.
H1 Control circuit
Heating curve
Setting values
Control mode Automatic
Time programs
>
>
>
>
Time
21:00 Temp. drop
06:00 Delete switch time
00:00 Add new
M T W T F S S
OK
Time Mode
06:00 Normal temp.
17:00 Temp. drop
00:00 Add new
M T W T F S S
OK
In this example, you can see a weekly
temperature drop program. Temperature
drop is on from 10 pm to 6 am from Monday
to Friday.
16
H1 (H2) Control circuit-> Time programs -> Exception schedule
3.5.2 Exception schedule
use by using the exception schedule. The date, time and mode
to which heating will be changed in the period in question are
entered in the exception schedule. To switch from an exception
schedule to weekly schedule mode, select automatic mode.
The picture shows an exception
schedule. Heat reduction is on from
31 March 2021, 11:30 to 14 April 2021,
16:00
Day: 31.03.2021
Time: 11:30
Mode: Temp. drop
Repeat: No
Accept: Ready
Day Time
31.03.2021 11:30 Temp. drop
14.04.2021 16:00 Automatic
Add new
Day Time
Add new
>
Adding a new switch time:
1. Navigate to ”Exception schedule” and press OK. The display will
read ”Add new.” Press OK
2. Press OK and set the start date for the program, then the time
and mode. You can select from the following:
Deleting a switch time from an exception schedule:
1. Navigate to the row with the activation time you want to delete.
2. Select ”Delete switch time.”
3. Accept the deletion by pressing ”Ready.”
1
2
3
4
• one day schedule from the weekly schedule (Monday - Sun-
day)
• a special day from the special day program (SD1 - SD7)
• one of the following heating levels: ”temperature drop,” or
”normal”
• ”automatic.”
3. Select, if the exception schedule repeats or not. If you select
repeat, it can be repeated every month same time or every year
same time.
4. Accept the exception schedule you created by pressing ”Ready.”
H1 (H2) Control circuit-> Time programs -> Special days
3.5.4 Temp. level according to time program
3.5.3 Special days
You can enter special day programs as exceptions to normal
weekly schedule. You can designate a maximum of 7 special day
pograms (SD). A special day program is typically created for each
holiday. When the special day program will be applied it is set in
the exception schedule.
Adding a new switch time:
1. Navigate to ”Special days” and press OK. Select an unused spe-
cial day and press OK.
2. Place the cursor on ”Add new” and press OK. Set the time for
the program (hours and minutes are set separately). Select the
mode to be switched to at the time specied. Accept the pro-
gram by pressing OK when the cursor is on OK.
3. Navigate to the ”Add new” row. Set the time when the mode will
change from temperature drop mode back to normal tempera-
ture. Accept the program by pressing OK. You can set several
dierent periods of temperature drop for the same special day.
Deleting a switch time from special day program:
Controller shows, what is the current heat level according to the time program.
Editing view
Graph
Special days
Special days
0 3 6 9 12 15 18 21 24
0 3 6 9 12 15 18 21 24
SD1
>
SD2
>
SD3
>
SD1
>
SD2 >
SD3 > 1. Navigate to the row with the switch time you want to delete.
2. Select ”Delete switch time.”
3. Accept the deletion by pressing ”Ready.”
1
Time Mode
00:00 Add new
0 6 12 18 24
08:00 Temp. drop
0 6 12 18 24
0 6 12 18 24
2
OK
>
>
>
SD1
SD1
SD1
Time Mode
Time Mode
08:00 Temp. drop
22:00 Normal
00:00 Add new
NOTE! Remember to also set the
end time for the exception sched-
ule! When you set the date and
time, the mode will change to
”Automatic”. In this case, the control re-
turns back to the weekly schedule. If
you selected that the start time ”Re-
peats every month or every year”, you
have to do same selection to the end
time.
3
17
The S203 keeps the temperature of domestic hot water at the
designated value. Because of the danger of bacteria, it is recom-
mended that the domestic hot water temperature is not perma-
nently set below +55 °C.
Main menu
H1 Control circuit
H2 Control circuit
DHW Control circuit
Alarms
>
>
>
>
DHW Info
Domestic hot water setting values
Supply water temperature
Circulation water temp.
----- ACTUATOR CONTROL ---------------------
Actuator control 75 %
58.0 °C>
54.6°C>
53.2°C>
4 Domestic hot water control
Info-menu shows the domestic hot water settings, the measure-
ments and actuator control related to the domestic hot water.
DHW Control circuit
Info
Setting values
Control mode Automatic
Trend display
>
>
>
>
Setting values
Info
Setting name Factory
setting Range Explanation
Domestic hot water setting value 58.0 °C 20...90 °C Domestic hot water temperature setting.
Anticipation control In use In use/
Not in use
Anticipation speeds up regulation when water consumption
changes by using measurement information from the circulation
water sensor.
DHW reduction/incr. Time
program
Not in
use
Not in
use/ In
use
The amount of the temperature reduction of DHW in time pro-
grams.
DHW reduction amount 10.0 °C 0...30 °C The amount of the temperature reduction of DHW in time pro-
grams.
DHW increment amount 10.0 °C 0...30 °C The amount of the increment of DHW in time programs.
18
Control mode
Control mode Explanation
Control mode
Automatic
Manual
Manual mechanical
Automatic mode is normally used in regulating domestic hot water. Here
you can switch from automatic to manual mode and move the vent into
the desired position. You can use manual mode for example when a sensor
malfunctions.
Automatic S203 maintains the temperature of domestic hot water at the setting value
set by the user.
Manual The desired position of the valve is set with the setting value ”Actuator
Manual position.”
DHW Domestic hot water control
Info
Setting values
Control mode Manual
Actuator manual position 20 %
>
>
>
>
Manual mechanical Manual mechanical control option must be taken into use. (Connections
and conguration -> DHW Actuator control -> Manual mech. control ”Avail-
able”). If you want the voltage controlled actuators to be controlled by
manual mechanical control, DHW actuator power supply must come from
strip connector 58. The controller switches o the power supply, when the
control mode is set manual mechanical control.
The valve position is set in the actuator when using mechanical manual
control
Trend display
Trend display
Supply water temperaure
Circulation water temp.
Actuator control
>
>
>
You can read the real-time trends of the temperatures of supply water and
circulation water. Also the real-time trend of actuator control in domestic
hot water circuit can be read. The sampling interval is 1 s.
19
Tip: Use the pre increase function. With the pre increase function the controller automatically increases supply
water temperature at the end of the reduction phase. Normal temperature has already been reached when the
heating mode changes to normal heat.
Weekly programmes have a standard graph view as well as a
change view showing the exact time when the new mode com-
mand will be executed. In the graph view, exceptions to normal
temperature reductions are shown as bars.
Graph view
MT W TS
F S
Browsing a weekly program:
Turn the control knob to browse a weekly program. If you wish to see
the exact switch times or you wish to change, delete or add switch
times, press OK at any weekday.
Weekly schedule
DHW Domestic hot water control -> Time programs
4.1 Time programs
DHW Control circuit-> Time programs
Adding a new switch time:
1. Press OK at the “Add new” row.
2. Set the switch time (set hours and minutes separately).
Press OK to accept.
3. Press OK and then turn the control knob to set the temperature
level (Drop ON/ Increase ON/ normal). Press OK to accept.
4. Press OK at each weekday you wish to choose.
5. Press OK at the end of the row to accept the new time program.
Note! Also remember to dene when the control returns to au-
tomatic (=normal). Press Esc to exit.
Note! Remember also to make the end section to the controls,
i.e. set the time of the return to the ”Normal” time, i.e. to the nor-
mal domestic hot water control. Press ESC to exit the program-
ming mode.
You can change the supply water temperature with time program.
-
-
ting.
Editing view
Time Mode
18:00 Increase ON
21:00 Normal
00:00 Add new
DHW reduction/Incr. Weekly schedule
Thursday
Friday
Saturday
Sunday
0 3 6 9 12 15 18 21 24
In the example the domestic hot water
increase is on from Monday to Thursday 18.00-
21.00 and at the weekend from Friday 18:00 to
Sunday 21:00.
DHW Control circuit
Info
Setting values
Control mode Automatic
Trend display
Time programs
>
>
>
>
>
Monday
Tuesday
Wednesday
20
DHW Domestic hot water control -> Time programs -> Exception schedule
Exception schedule
by using the exception schedule. The date, time and mode to
which domestic hot water temperature will be changed in the pe-
riod in question are entered in the exception schedule. To switch
from an exception schedule to weekly schedule mode, select au-
tomatic mode.
The picture shows an exception
schedule program. Domestic hot
water increase is on from 17 June
2022, 11:30 to 25 June 2022, 16:00
Day: 17.06.2022
Time: 11:30
Mode: Increase ON
Repeat: No
Accept: Ready
Day Time
17.06.2022 11:30 Increase ON
25.06.2022 16:00 Automatic
Add new
Day Time
Add new >
Adding a new activation time:
1. Navigate to ”Exception schedule” and press OK. The display will
read ”Add new.” Press OK
2. Press OK and set the start date for the program, then the time
and mode. You can select from the following:
Deleting an activation time from an exception schedule:
1. Navigate to the row with the activation time you want to delete.
2. Select ”Delete switch time.”
3. Accept the deletion by pressing ”Ready.”
• one day schedule from the weekly schedule (Monday - Sun-
day)
• a special dayfrom the special day program (SD1 - SD7)
• one of the following heating levels: ”Drop ON”, ”Increase ON,”
or ”Normal”
• ”automatic.”
3. Select, if the exception schedule repeats or not. If you select
repeat, it can be repeated every month same time or every year
same time.
4. Accept the exception schedule you created by pressing
”Ready.”
DHW Domestic hot water control -> Time programs -> Special days
Special days
You can enter special day programs as exceptions to normal
weekly schedule. You can designate a maximum of 7 special day
pograms (SD). A special day program is typically created for each
holiday. When the special day program will be applied it is set in
the exception schedule.
Adding a new activation time:
1. Navigate to ”Special days” and press OK. Select an unused spe-
cial day and press OK.
2. Place the cursor on ”Add new” and press OK. Set the time for the
program (hours and minutes are set separately). Select the mode
to be switched to at the time specied. Accept the program by
pressing OK when the cursor is on OK.
3. Navigate to the ”Add new” row. Set the time when the mode will
change from temperature increase/ drop mode back to normal
temperature. Accept the program by pressing OK. You can set
several dierent periods of temperature drop for the same spe-
cial day.
Editing view
Graph
Special days
0 3 6 9 12 15 18 21 24
SD1 >
SD2 >
SD3 >
Time Mode
00:00 Add new
0 6 12 18 24
08:00 Increase ON
0 6 12 18 24
OK
>
>
>
SD1
SD1Time Mode
1
2
4
3
NOTE! Remember to also set the
end time for the exception sched-
ule program! When you set the date
and time, the mode will change to
”Automatic”. In this case, the control
returns back to the weekly sched-
ule. If you selected that the start
time ”Repeats every month or eve-
ry year”, you have to do same selec-
tion to the end time.
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