OUMAN C203 User manual

www.ouman.fiwww.ouman.fi
Regulator for the
three circuits
- control for 2 heating circuits
- 1 domestic hot water control
USER
MANUAL

2
This user manual explains the C203 regulator’s functions and the displays that are visible to all users. The
service mode functions are covered in separate service manual atwww.ouman.fi.
The regulator also has a service mode that is used when connecting and implementing features as well as
the regulator’s configuration. It includes certain setting values that do not usually need to be changed or
require in-depth knowledge of the regulation process.
The C203 is a heat regulator for 3 circuits (two heating circuits and one hot water circuit). Wiring and con-
figurating selections define what the regulator displays on the display screen.
Turn the control knob
to navigate in the menu.
A maximum of five windows can be displayed with the favourite
views key. Default settings for favourite views show menus for
each circuit, including all default settings that can be changed
by the user as well as information about measurements and the
regulator’s operation.
You can move from one favourite view to another by tapping
the key.
Press the control button to en-
ter the menu.
Control knob and OK
Cancel button
Basic view
Holding the key down for an exten-
ded period of time returns the regu-
lator to its basic mode. The display
shows the basic view, the monitor
dims and the keyboard locks if the
locking function is in use.
Outdoor temp.
H1 Supply water
H2 Supply water
DHW Supply water
Automatic
Automatic
Automatic
19.4°C
19.2°C
19.8°C
58.0°C
13:51 19.06.2017 Selection >
OK
OK
Measurements
H1 Control circuit
H2 Control circuit
DHW Domestic hot water control
Main menu
>
>
>
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3
Contents
1 Display menus ...................................................................................................................................................... 4
1.1 Basic view .............................................................................................................................................................4
1.2 Favourite views .....................................................................................................................................................5
1.3 Menu structure ......................................................................................................................................................6
2 Measurements.............................................................................................................................................................7
2.1 Trend display .....................................................................................................................................................7
3 Regulation of supply water in heating circuits ...................................................................................................8
3.1 Supply water information ................................................................................................................................................8
3.2 Room temperature information ..........................................................................................................................................9
3.3 Measurements ..................................................................................................................................................9
3.4 Heatingcurve...........................................................................................................................................................10
3.5 Setting values ....................................................................................................................................................11
3.5.1 Room setting values .........................................................................................................................................11
3.5.2Temperature drops ..........................................................................................................................................12
3.5.3 Special setting values .....................................................................................................................................12
3.6 Controlmode.......................................................................................................................................................15
3.7 Time programs ...................................................................................................................................................16
3.7.1 Weekly schedule .............................................................................................................................................16
3.7.2 Exception schedule .........................................................................................................................................17
3.7.3 Special days ................................................................................................................................................... 17
3.7.4 Temperatur level according to time program ..................................................................................................17
4 Domestic hot water control ............................................................................................................................... 18
4.1 Setting values ...........................................................................................................................................................18
4.2 Control modes .................................................................................................................................................. 18
4.3 Measurements ..................................................................................................................................................18
4.4 Time programs ...................................................................................................................................................19
4.4.1 Weekly schedule .............................................................................................................................................19
4.4.2 Exception schedule .........................................................................................................................................20
4.4.3 Special days ...................................................................................................................................................20
4.4.4 Temperatur level according to time program ..................................................................................................20
5 Alarms ..........................................................................................................................................................21
5.1 Active alarms ........................................................................................................................................................22
5.2 Alarm history .....................................................................................................................................22
5.3 Acknowledge all alarms ..................................................................................................................................22
5.4 Reset alarm history ..........................................................................................................................22
5.5 Alarm receivers ..................................................................................................................................................22
5.6 Routing schedule ................................................................................................................................................23
6 Systemsettings ...................................................................................................................................................24
6.1 Setting date, time and language ......................................................................................................................24
6.2 Text message (SMS) settings ...........................................................................................................................24
6.3 Network settings...........................................................................................................................................25
6.4 Display settings ..................................................................................................................................................29
6.5 Type information ....................................................................................................................................................29
6.6 Lock code ...........................................................................................................................................................29
7 Communication via a mobile phone ................................................................................................................. 30
Optional equipment ..............................................................................................................................................31
Technical information ......................................................................................................................................... 32
Index .......................................................................................................................................................................32

4
Central factors related to controlling heating are visible in the regulator’s basic view. When the unit is dor-
mant (keys have not been touched) the display shows the basic view.
Dierent levels of display menus are used to make the C203 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
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 alarms.
Temperature measurements
enable quickly determining pro-
per operation of the circuit.
Circuit control. This shows whether the
circuit’s heating level has been conti-
nuously forced to a particularly level or if
the regulator is in manual mode.
Alarms
Outdoor temp.
H1 Supply water
H2 Supply water
DHW Supply water
Automatic
Automatic
Automatic
19..4°C
19.2°C
19.8°C
58.0°C
13:51 19.06.2017 2
Selection
1.1 Basic view
C203 can generate dierent kinds of alarms. In the event of an alarm,
an alarm window pops up showing detailed alarm information and a
beeping alarm signal goes o.
If there are several unacknowledged alarms and you acknowledge
the alarm currently appearing in the device display, the previous alarm
will appear. As soon as all active alarms have been acknowledged, the
alarm window disappears and the alarm signal stops.
Alarm signal of all active alarms may also be stopped by pressing Esc
button. When you press Esc, the alarm signal stops and all the alarm
windows disappear from the display.
You may look into the alarms later by going to ”Alarms” > ”Active alarms”.
If an alarm has been acknowledged by pressing Esc, 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
Acknowledging alarms: Press OK and
the alarm sound will stop. If the reason
for the alarm has not been corrected, the
exclamation point in the top right will
continue to blink.

5
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 >
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 tapping the button. There can be a maximum of five of these
views. The pre-installed favourite views show the circuits’ main menus. You can also save a particular regu-
lator view as your own favourite view. You can return from favourite views to the basic view by tapping 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 opens. Use the dial to select the position 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 Circuit menu
H1 Circuit menu
DHW Circuit menu
Setting a favourite view
Your own favourite view
Your own favourite view
H1 Control circuit
H2 Control circuit
Supply water information
Room temperature information
Measurements
Heating curve
Supply water information
Room temperature information
Measurements
Heating curve
>
>
>
>
>
>
>
>
DHW Domestic hot water control
Setting values
Control mode Automatic
Measurements
>
>
>
Alarm history
02.12.2016 10:11:42 Sensor fault H1 Supply w
05.12.2016 11:22:40 Sensor fault H1 Return
>
>
2
1.2 Favourite views

6
The service mode is covered in the
C203 Service manual (Installation and con-
figuration).
Main menu Page 7
In the user manual
Page 8
Page 8
Page 18
Page 21
Page 24
Measurements
H1 Control circuit
H2 Control circuit
DHW Domestic hot water control
Alarms
System settings
Service
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Measurements, trends
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
H2 Return water 21.1 °C
>
>
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>
H1 Control circuit
H2 Control circuit
Supply water information
Room temperature information
Measurements
Heating curve
Setting values
Control mode
TIme programs
Supply water information
Room temperature information
Measurements
Heating curve
Setting values
Control mode
TIme programs
>
>
>
>
>
Automatic >
>
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>
>
>
Automatic >
>
DHW Domestic hot water control
Setting values
Control mode Automatic
Measurements
Time programs
>
>
>
>
Alarms
Active alarms
Alarm history
Acknowldge all alarms
Reset alarm history
Routing schedule
Alarm receivers
>
>
>
>
>
>
System settings
Time 17:01
Date 29.06.2013
Daylight saving time In use
Language English
SMS settings
Network settings
Display settings
Type info
Lock code
>
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Not in use >
1.3 Menu structure

7
2 Measurements
You can see the measurements and mode information linked to the
C203. When you press OK on the measurement row, you can see
the measurement’s trend or trend log, change the settings of the
trend log and change the name of the measurement.
General measurements are informational temperature measu-
rements with names set by the factory for a particular use. The
general measurement can also be put to a dierent use and be re-
named.
If the sensor is not connected or is defective, the measurement va-
lue shown will be -50 or 130 °C.
You can also see circuit-specific measurements under each circuit.
Measurements
Home-Away mode. By pressing OK you can change the status of the Home/
Away mode from the regulator.
Main menu
Measurements
H1 Control circuit
H2 Control circuit
DHW Domestic hot water control
>
>
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>
Measurements, trends
Home-Away-control Home
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
>
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If a GSM is connected to the controller, you can read measurement informati-
on form a mobile phone.
Send a message: Measurements
The controller sends the present measurement information to your mobile
phone. (If you have a device ID, write the device ID in front of the key word,
e.g., Ou01 Measurements)
MEASUREMENTS:
Outdoor temp. = -18.2 °C /
H1 Supply water = 35.1 °C/
H1 Return water = 22.0 °C /
H1 Room temp. = 21.5 °C /
H2 Supply water = 35,7 °C/
HW Supply water = 57,7 °C/
MEASUREMENTS
Measurements → ”Select measurement, press OK” → Trend display
When you press OK on ”measurement,” a menu for viewing trends and chan-
ging settings will open. You can also use the menu to rename a measurement
to better describe what is being measured.
Measurement channels continuously monitor trends. Trends show measure-
ments from the past 45 seconds. The measurements displayed are updated at
one-second intervals.
2.1 Trend display
Trend display 28.01 08:26:19 [ 34.7 °C ] ( s )
38
28
Factory settingSetting Information about settingRange
Trend log on
Name of meas.
Trend log
sampling interval
Trend log saving
Trend log automatic
saving
The trend log can hold 2,000 measurement samples. The regulator produces a
separate trend log for each measurement.
You can change the name of the measurement shown in the display. If the measu-
rement is circuit-specific, the identifier for the circuit appears before the measure-
ment, e.g. H1.
A dierent sampling interval can be set for dierent measurements. The memory
can store 2,000 measurement samples. For example, if the sample interval is 60
seconds, the trend buer will contain measurement information for 33 hours. If the
sampling interval is 1,800 seconds (30 minutes) the buer will contain measure-
ment history for 41 days.
The trend log can be saved to a memory stick. A csv file is created on the memory
stick, which is named according to the point measured. For example, the trend log
for outdoor temperature is saved in a file named UI1.csv.
You can set the regulator to automatically create a csv file at the intervals
that have been set and forward the data to Oulink (additional equipment). If
the trend log becomes full before the interval for saving data has passed, the
regulator will save the data immediately when the log is full (2,000 measure-
ments).
Not in use/
20 min/
1 h/
6 h
Supply water
60 s
Not in use
No Yes/No
Trend display
Trend log
Press OK to view trends. The trend view is updated at one-second intervals, so the
measurement can be monitored in real time.
From there you can view the trend log if the trend log is turned on. The trend log
is not shown in real time, i.e. the view is not updated in real time. The interval for
trend-log monitoring can be changed and the log can be saved to a memory stick.
Name of meas.:
Approve: Press OK a number of seconds
Cancel: Press ESC a number of seconds
Su p p l y w a t e r

8
The C203 enables control of two dierent supply water circuits
independently (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 Supply water information
The supply water info shows which factors are aecting the supp-
ly water temperature at the time of inspection. The starting point
is the supply water temperature according to the
outdoor temperature (according to the heating curve).
H1 (H2) Control circuit-> Supply water information
Main menu
Measurements
H1 Control circuit
H2 Control circuit
DHW Domestic hot water control
Alarms
System settings
Service
>
>
>
>
>
>
>
H1 Control circuit
Measurements
Supply water information
Room temperature information
Heating curve
>
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>
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 30).
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.
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 mea-
surements.
Bus compensation eect The amount of required compensation is determined by an external device to the
C203, for example from bus compensation to weather compensation.
H1 (H2) DH return comp. eect Supply water increase caused by temperature compensation for return water from
district heating exchanger
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 Present supply water temperature determined by the controller. All the fac-
tors are considered that aect the supply water temperature.
Supply water temperature Present measured supply water temperature.
Actuator control Position set for the device by the regulator. If series regulation is in use, 50 % means
that valve 1 is fully open and vent 2 is closed. 100 % means that both valves are open.
Delayed outdoor temperature The average outdoor temperature that the controller uses for control. (setting the
average p. 13)
The Controller is in summer stop When the regulator is in summer function mode, the supply water information says
”Controller is stopped for summer.”

9
In the example in the picture, supply water according to the heating curve is
35.1°C. In the Away mode the controller reduces the temperature of the supply
water to 6.0°C. Based on these data, the computational setting value of supp-
ly water is 29.1°C (= 35.1 - 6.0).
3.2 Room temperature information
3.3 Measurements
If a room sensor is connected to the controller, you can check the
room temperature info to see which factors determine the room
temperature at the time of inspection. The basis is the setting va-
lue of room temperature.
The ”Measurements” menu under the circuit shows the measurements related to the circuit.
All measurements connected to the regulator can be found in the Measurements menu at the root level (see
page 7).
H1 (H2) Control circuit-> Room temperature information
H1 (H2) Control circuit -> Measurements
Send a message: H1 Supply water info.
The controller sends a supply water info from the H1 heating circuit to
your mobile phone that shows you the controller determined supply water
temperature at the present and the factors effecting supply water control. The
message cannot be changed or sent back to the controller.
Send a message: H1 Room temperature info.
The controller sends a room temperature info from the H1 heating control
circuit to your mobile phone that shows you the calculated room temperature
setting that can be used in control. The message can’t be changed or sent back
to the controller.
H1 Control circuit
Measurements
Supply water information
Room temperature information
Heating curve
>
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Supply water information
According to cure 35.1 °C
Away-control effect -8.5 °C
-------------------------------------------------------
Calculated supply water setting 29.1 °C
L1 Huonelämpötilainfo:
Hidastettu huonelämpötila-
mittaus = 19.1 °C/
Huonelämpötilan asetusarvo
= 21.0 °C/
Poissa-ohjauksen vaikutus =
2.0 °C/
Laskennall. huoneasetus-
arvo = 19.0 °C.
L1 HUONELÄMPÖTILAINFO
L1 HUONELÄMPÖTILAINFO
L1 HUONELÄMPÖTILAINFO
L1 HUONELÄMPÖTILAINFO
H1 Supply water info:
According to the curve
= 35.1 °C/
Away-control effect = -6.0 °C/
Calculated supply water
setting = 29.1 °C.
H1 Room temperature info:
Delayed room temperature =
19.1 °C/ Room temperature
setting= 21.0 °C/
Away-control effect = 2.0 °C/
Calculated room temperature
= 19.0 °C.
H1 ROOM TEMPERATURE
INFORMATION
H1 SUPPLY WATER INFO
H2 SUPPLY WATER INFO
H2 ROOM TEMPERATURE
INFORMATION
Factors eecting the room temperature Explanation
Delayed room temperature Delayed room temperature that the controller uses in control (see p. 11).
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.
Force control eect Room temperature has been forced permanently to the desired reduction in room
temperature (see Control mode selection
Away -control eect Home/Away mode for reduction of room temperature. The trigger can come from
the controller from the Home/Away switch or be sent as a text message.
Eect of autumn drying Eect of automatic autumn drying on room temperature (see page 12)..
Calculated room temperature Current room temperature setting determined by the controller.

10
The supply water temperature for dierent outdoor temperatures
is set in heating curve settings. With C203 the heating
curve can be adjusted exactly to meet the needs of the facility from
either three or five points. A 5 point curve is the factory setting.
H1 (H2) Control circuit-> Heating curve
3-point curve (default)
3.4 Heating curve
Floor heating,Radiator heating,
Setting Factory
setting Explanation
Note! Changes influence room temperature slowly. Wait at least 24 hours before readjusting the settings. Es-
pecially in buildings with foor heating, the delays in room temperature changes are quite long.
If room temperature drops, make the curve steeper. (Set higher values for
supply water temperature at the outdoor temperatures -20 °C and 0 °C).
If room temperature rises, make the curve less steep.
(Set lower values for supply water temperature at the outdoor temperatures
-20 °C and 0 °C).
The preset heating curves are typical average curves for the heating mode in
question. The curve may need to be adjusted to suit your building. The setting
should be done during the cold period and if the room compensation is in use, it
should be switched o during the setting. The curve is appropriate when the room
temperature is maintained constant although the outdoor temperature changes.
H1 Control circuit
Supply water information
Measurements
Heating curve
Setting values
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>
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Heating curve
-20 = 58 °C 54 °C
0 = 41 °C 39 °C
+20 = 18 °C
Min limit: 18 Max limit: 70
+20 -200°C
20
40
60
80
Heating curve
-20 = 58 °C 62 °C
0 = 41 °C 43 °C
+20 = 18 °C
Min limit: 18 Max limit: 70
+20 -200°C
20
40
60
80
Send message: H1 Heating curve
The regulator 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 regulator.
C203 will make the requested changes and send a new message
showing the changes made.
Same way you can send message: H2 Heating curve
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/
Menov.(+20) = 18 °C
Minimumm limit = 18°C/
Maximum limit = 79°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 = 70°C/
In case of a 3-point curve, you dene the supply water temperature for the outdoor
temperatures -20 °C, 0 °C and +20 °C.
Heating curve
+20 -200°C
20
40
60
80
-20 = 58 °C
0 = 41 °C
+20 = 18 °C
Min limit: 18 Max limit: 70
Heating curve
-20 = 38 °C
0 = 28 °C
+20 = 18 °C
Min limit: 18 Max limit: 45
+20 -200°C
20
40
60
80
Minimum allowed supply water temperature. A higher minimum temperature is
used in damp rooms and tiled rooms than in, e.g., rooms having a parquet floor to
ensure a comfortable temperature and removal of moisture in the summer.
Min limit 18.0 °C
Maximum allowed supply water temperature. The maximum limit prevents the
temperature in the heating circuit from rising too high, preventing damage to pipes
and surface materials. If, e.g., the characteristic heating curve setting is incorrect,
the maximum limit prevents excessively hot water from entering the network.
Max limit
radiator heating
floor heating
70 °C
45 °C
5-point curve
Floor heating,Radiator heating,
On a 5-point curve you can also change the three middle values for outdoor
temperature. Navigate to change mode by pressing the OK key for an extended
period of time.
Heating curve
+20 -200°C
20
40
60
80
-10= 34 °C
+10= 24 °C
Heating curve
-20 = 58 °C
0 = 41 °C
+20 = 18 °C
Min limit: 18 Max limit: 70
+20 -200°C
20
40
60
80
-10= 50 °C
+10= 28 °C
-20 = 38 °C
0 = 28 °C
+20 = 18 °C
Min limit: 18 Max limit: 45