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

2
Turn the control knob
to navigate in the menu.
A maximum of five views can be displayed with the fa-
vourite views key. Default settings for favourite views
show menus for each circuit, which include all default
settings that can be changed by the user as well as in-
formation about measurements and the regulator’s op-
eration. Press the control knobto
enter the menu and accept
the changes.
Control knob and OK
Cancel button
Basic view
Holding the key down for an extended period of time
returns the regulator to its basic mode. The display
shows the basic view, the background light of the dis-
play dims and the keyboard locks if the locking func-
tion is in use.
This user manual consists of two parts. Issues that are intended for all users are presented in the first 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 process. The
user manual can also be downloaded from www.ouman.fi /en/document-bank/.
The S203 is a heating controller for 3 circuits (two heating circuits and one hot water circuit). Wiring and
configurating selections define what is seen on the display screen.
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 05.02.2015 Selection >
You can move from one favourite view to another
by pressing the key.
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
7.1 Routing schedule 26
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 configuration 36
10 Service settings 40
11 Restore settings and updates 46
12 Text message quick reference 47
Optional accessories 48
Remote control options: 49
Index 51
Tecnical information 52
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 05.02.2017 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.
Dierent levels of display menus are used to make the S203 clear and easy to use. The basic view shows the
most important information for monitoring operation of the unit. Favourite views that can be changed by us-
ers 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 en-
able quickly determining proper
operation of the circuit.
Circuit control. This shows whether the cir-
cuit’s heating level has been continuously
forced to a particularly level or if the con-
troller is in manual mode.
Alarm indication
1.1 Basic view
Ouman S203 can generate alarms for several dierent reasons. In the
event of an alarm, an alarm window pops up showing detailed alarm
information and a beeping alarm signal goes on.
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 sig-
nal 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
H1 Supply water=10.2 °C
Received: 08.11.2016 02:27
Press OK to acknowledge the alarm
When controller is configured, 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 → Sensor
fault alarms: Disabled/Enabled.
Acknowledging alarms: Press OK and
the alarm sound will me muted. 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 button. There can be a maximum of five of
these views. H1, H2 and DHW Info views are set as fixed favourite views. In addition to these fixed views, user
can define 2 more favourite views. You can return from favourite views to the basic view 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 -----------------------------------
According 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
02.12.2014 10:11:42 Sensor fault H1 Supply w >
05.12.2014 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 05.02.2017 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
>
>
>
>
>
>
>
IInputs and outputs
Outdoor temp. -18.2 °C >
----------------------------------------------------
H1 Supply water 35.1 °C
H1 Return water 22.0 °C
LH1 Room temperature 21.5 °C
H1 Actuator control 22 %
---------------------------------------------------------
H2 Supply water 28.1 °C
Return water 21.1 °C
H1 Control circuit
H2 Control circuit
Info temperature information
Heating curve
Setting values
Control mode
Time programs
Info temperature information
Heating curve
Setting values
Control mode
Time programs
>
>
>
Automatic >
>
>
>
>
Automatic >
>
DHW Domestic hot water control
Info
Setting values
Control mode Automatic
>
>
>
Alarms
Active alarms
Alarm history
Acknowldge all alarms
Reset alarm history
Routing schedule
Alarm receivers
>
>
>
>
>
>
System settings
Time 17:01
Date 29.06.2014
Language English
SMS settings
Network settings
Display settings
Type info
Lock code
>
>
>
>
>
>
>
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
You can see the inputs and outputs of S203 which are configured
in use. Configuration of the inputs and outputs is done in ser-
vice menu (see p. 36-39).General measurements are temperature
measurements witch can be used for serial dierent purposes. The
default names of the measurements can be changed according 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-specific
groups. First H1, then H2 and last DHW
Informational general measurements, which can be used for sev-
eral purposes. Measurements can be named in the service menu.
(Navigate: Service → Connections and configuration).
1
1
2
2
2
2
Main menu
Inputs and outputs
H1 Control circuit
H2 Control circuit
HW Domestic hot water control
>
>
>
>
Inputs and outputs
------ INPUTS AND OUTPUTS -----------------------
Outdoor temp. -18.2 °C
H1 Supply water 35.1 °C
H1 Return water 22.0 °C
H1 Room temperatur 21.5 °C
H1 Actuator control 22 %
H2 Supply water 28.1 °C
H2 Return water 21.1 °C
>
>
>
>
>
>
>
>
Measurement Range Measurement information
Home-Away-control 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.
Supply water -50...+130 °C Current temperature of the water entering the heating network.
Return water temperature -50...+130 °C Current temperature of the water returning form the heating network.
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.
DHW tank bottom
temperature
-50...+130 °C The HW tank bottom temperature data is used for hot water circulation
pump control.
DHW tank top temperature -50...+130 °C The hot circulation pump can be controlled by using both the bottom and
top temperature, or either separately.
H1(2) 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 (12,13) -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 (3) Pump O/On The state of the pump.
Previous day’s average
outdoor temp.
The value is used to control the autumn dry function and as an alternative
to outdoor temperature measurement if the sensor malfunctions.
DI 1(2) Water volume The measured amount of water consumption (cumulative value).
DI 1(2) Energy measurement 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 message,
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 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 first open
the valve and the controller will then start up actuator 2.
P2 (3) Pump control O/On The control of the pump.
TR5 (6) control (nameable) O/On Relay control mode at the moment. TR3 control is a relay control 1 and TR4
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 so-
lenoid valve can
`t be connected to the controller.

9
The S203 enables control of two dierent supply water circuits in-
dependently (H1 and H2).
Regulation of the temperature of supply water is controlled by
the outside temperature. Use of room temperature measurements
keeps room temperature more consistent.
3 Regulation of supply water in heating circuits
3.1 Info
The info shows which factors are aecting currently the supply
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
data aecting to supply water control and information of control
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
>
>
>
>
>
>
>
>
H1 Control circuit
Info
Heating curve
Setting values
Control mode
Time program
>
>
>
>
>
Factors eecting the supply water temp. Explanation
According to curve Supply water temperature setting according to the curve at the current outdoor
temperature.
Eect of parallel shift Eect of parallel shift on the supply water temperature.
Eect of time program Eect 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 in-
crease the temperature of supply water.
Force control eect Supply water has been forced permanently to the desired temperature reduction
level (see Control mode selection).
Away -control eect ”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 eect The eect of the outdoor temperature delay on the supply water temperature.
Floor heat. anticipate Eect of anticipation of floor heating on the temperature of supply water.
Eect of autumn drying Eect 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. eect Supply water increase caused by temperature compensation for return water from
district heating exchanger.
Eect of room compensation Eect of room compensation on the supply water.
Room comp. time adjustment Additional correction for more precise room compensation based on realised regu-
lation (eect of I-regulation).
General compensation eect General compensation can be based for example on wind, solar or pressure meas-
urements.
Bus compensation eect The amount of required compensation is determined by an external device to the
S203, for example from bus compensation to weather compensation.
Min limit eect Supply water temperature increase due to the minimum limit.
Max limit eect 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 temperature
at the present and the factors eecting supply water control.
The message also includes the measurements which are aecting
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 eecting the room temperature Explanation
----- ROOM TEMPERATURE --------------
Room temperature setting Room temperature setting set by the user.
Time program eect on room temp. Room temperature drop by weekly or exception schedule.
Away -control eect 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 eect Room temperature has been forced permanently to the desired reduction in room
temperature (see Control mode selection, p.13).
Eect of autumn drying Eect 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 measure-
ment 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 de-
layed measurement as an outdoor temperature.
Anticipated outdoor temperature If the heating mode is set to floor heating, the anticipated temperature measure-
ment 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 controller takes
into account the outdoor temperature change rate.
Room temperature The measured room temperature or room temperature from the bus. The measure-
ment is not necessarily taken into use in all control processes.
Delayed room temperature The floating average of room temperature. The controller uses this value, when
calculating the room compensation demand (the delay time of room temperature
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 first 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.