OUMAN EH-800 User manual

1
OUMANEH-800Heatingcontroller
USER MANUAL

2
EH-800isaheatingcontrollerforprivatehomesandbusinessfacilitieshavingheatingsystemswithcirculatingwa-
ter.Anextensionunitcanbeobtainedasoptionalequipmentmakingitpossibletotakeasecondcontrolcircuit
intouse.Ifasecondcontrolcircuithasbeentakenintouse,numbers1or2willappearonthemaindisplayindicat-
ingwhichcontrolcircuitisinuse.TheEH-800modelhasanintra/internetconnection(theEH-800Bmodeldoes
nothaveit).
Controlmode:
Automatic
Forced control
Stand-by
Manual control
Temperaturelevel:
Nominal temperature
Temperature drop
Big temperature drop
Pre-increase
Summer stop
(see p. 15 ”Summer function”)
Controlcommand: indicates what determines the temperature level
Time program
Home/away
H/A
Room temperature
Outdoor temperature
Temp. of water entering the heating circuit
Symbols for heating mode:
Main menu symbols
Control knob
(also the OK
button)
Hand-operated lever
Alarm indicator
Valve control
information
= valve completely open
= valve completely closed
= valve opening
= valve closing
Cancel button
Hand-operated control knob
= floor heating
= radiator heating
OK
Turn the control knob
to navigate in the
menu and carry out
increase and dec-
rease commands.
Press the control button to enter the menu. Press
the control knob (OK function) to conrm changes
Press for a number of seconds special settings that
are seldom needed to appear on the display.
H/A

3
Table of contents
34
34
34
34
34
34
34
35
37
38
40
42
42
43
43
44
46
51
52
53
54
56
59
60
Taking the H2 control circuit into use ....................................
H2 Process settings ...............................................................
Selection of heating mode ............................................
Actuator selection .............................................................
Actuator driving time..........................................................
Selection of type of heating curve .................................
Labeling heating circuits ..................................................
Relay control .............................................................................
Valve ushing ...........................................................................
Text message settings ...........................................................
EH-800 network settings ......................................................
Display settings .......................................................................
Initiation of locking code ........................................................
Changing the locking code ....................................................
Type information ......................................................................
Communication via a mobile phone ............................
Special settings ...............................................................
Optional equipment .......................................................
Installation guide ............................................................
EH-800 connections..........................................................
EH-800 initial setup..........................................................
What to do if there is a fault ..........................................
Index ..................................................................................
Technical information .....................................................
4
5
6
6
7
8
10
11
13
14
14
15
18
18
19
20
20
21
22
22
23
26
26
28
29
30
31
32
Fine adjustment ................................................................
Heating curve settings .....................................................
Säätöpiirikohtainen perusvalikko ..................................
Measurements ..........................................................................
Graphic presentation of meas. history information..............
Supply water info ......................................................................
Room temperature info ............................................................
Settings .......................................................................................
Control modes ...........................................................................
Other controls ...................................................................
Home/Away control...................................................................
Relay control ...............................................................................
Clock functions ..................................................................
Temperature drop Weekly/24-hour program .......................
Exception calendar ....................................................................
Setting the time and date ........................................................
Alarm message .................................................................
Alarms .................................................................................
Device settings ..................................................................
Language/Kieli/Språk ................................................................
Settings for measurement channels ....................................
H1 Process settings....................................................................
Selection of heating mode ...............................................
Direction of valve ................................................................
Selection of type of heating curve ...................................
Labeling heating circuits ....................................................
Cascade control ...................................................................
Hybrid heating........................................................................
Temp. of water entering the heating circuit
= valve completely open
= valve completely closed
= valve opening
= valve closing

4
The ne adjustment function enables you to make small changes
in temperature. It pays to use this function when the room tempe-
rature remains the same but it is too cold or too hot.
Room temperature measurement in use:
When a room sensor is in use, ne tuning directly effects the cal-
culated room temperature + 4°C.
The corrected setting for the room temperature is “Room temperature
setting + “ Fine adjustment” + “Potentiometer (TMR/SP) determined
room temperature setting change”
Room temperature measurement is not in use:
When the room sensor is not connected, ne adjustment effects
the heating curve as a parallel shift and the steepness of the curve
does not change. The effect of ne adjustment on the supply
water temperature can be seen on the bottom row.
Fine adjustment
Instructions:
Press OK in the main display.
Turn the control knob in the desired direction
and press OK to conrm.
Fine adjustment settings can also be inspected and changed in set-
tings (see p. 46).
If outdoor temperature changes effect the room temperature, the
heating curve’s settings must be changed. (see next page).
Too cold
Use the ne adjustment to raise the room temperature.
In this example the room temperature is raised 0.5 C.
Too hot
Use the ne adjustment to lower the room temperature.
In this example the room temperature is lowered 0.5 C.
OK
OK
 Heatingneadjust:turncontrolknob
Roomtemperaturechange+0.5 °C
- +
 Heatingneadjust:turncontrolknob
Roomtemperaturechange-0.5 °C
- +
 Heatingneadjust:turncontrolknob
Roomtemperaturechange+1.5 °C
- +
  Info:Effectonsupplywatertemp.6.0°C
  Conrm:pressOK,Cancel:pressESC
 Heatingneadjust:turncontrolknob
Roomtemperaturechange+0.5 °C
- +
  Correctedroomtemperaturesetting22.0°C
  Conrm:pressOK,Cancel:pressESC
effects the H1 control circuit.
effects the H2 control circuit.
(only appears if the H2 control circuit has been taken into use,
initiation see p. 34).

5
Heating curve settings
The 3-point curve has automatic curve adjustment! The controller do-
es not allow descending curves or curves that are too concave.
A parallel shift can be made to the heating curve using the ne adjust-
ment function (see p. 48) The 5 point curve is taken into use in process
settings (see p. 29 and 34, how to set a 5 point curve)
The ends of the heating curve are adjusted using the minimum and
maximum limits. The supply water minimum limit setting ensures
that the pipes do not freeze. The maximum limit setting ensures that
excessively hot water that could damage structures (e.g., parquet
with oor heating) does not enter the heating system.
The basis of an even room temperature is a heating curve of the
correct shape. The correct shape depends on many factors. (the
building’s insulation, type of heat distribution, size of the network,
etc.). The supply water temperature for different outdoor temperatu-
res is set in heating curve settings. With Ouman EH-800 the heating
curve can be adjusted exactly to meet the needs of the facility from
either three or ve points. A 3 point curve is the factory setting.
Examples of 3 point curve factory settings:
1. Floor heating, damp rooms
The controller has factory set curves and settings suitable for dif-
ferent heating modes that usually do not have to be changed.
The heating curve needs to be adjusted if the room tempera-
ture does not remain even when the temperature is below ze-
ro and falling.
If the room temp. drops,
make the curve steeper
(set the bigger values
at -20 and 0).
If the room temp. rises,
make the curve less steep
(set the smaller values
at -20 and 0).
Note! Changes effect room temperature slowly
Wait at least 24 hours before readjusting settings. Especially in buil-
dings having oor heating the delays in room temperature changes
are quite long.
The supply water minimum limit setting also ensures a comfortable and good drying
temperature in the summer.
Minimum limit
Maximum limit
4. Radiator heating, steep heating curve
3. Radiator heating, normal heating curve
2. Floor heating, normal heating curve
H1Heatingcurve
-20 = 58°C 62°C
 0 = 41°C 43°C
+20 = 18°C
Min.limit:12Max.limit:75 +20 -200°C
20
40
60
80
H1Heatingcurve
-20 = 58°C 54°C
 0 = 41°C 39°C
+20 = 18°C
Min.limit:12Max.limit:75 +20 -200°C
20
40
60
80
H1Heatingcurve
-20 = 31°C
 0 = 27°C
+20 = 23°C
Min.lilmit:23Max.limit:35 +20 -200°C
20
40
60
80
H1Heatingcurve
-20 = 33°C
 0 = 27°C
+20 = 20°C
Min.lilmit:12Max.limit:42 +20 -200°C
20
40
60
80
H1Heatingcurve
-20 = 58°C
 0 = 41°C
+20 = 18°C
Min.lilmit:12Max.limit:75 +20 -200°C
20
40
60
80
H1Heatingcurve
-20 = 63°C
 0 = 44°C
+20 = 18°C
Min.lilmit:12Max.limit:75 +20 -200°C
20
40
60
80
effects the H1 control circuit curve.
effects the H2 control circuit curve.
(only appears if the H2 control circuit has been taken into use,
initiation see p. 34).

6
Basic menu: Measurements
Present temperature of water entering the heating network.
Present measured outdoor temperature.
Present room temperature.
Present temperature of water returning form the heating network.
Measurement channels 3, 4 and 5 can be used as free temperature measurements. If the me-
asurement has not been labeled, it appears as “Measurement 3 (4)”. Measurement channel 5
is in use if an extension unit is connected to the controller.
Present position of the valve.
If cascade control is in use, the controller’s display indicates into which position the controller is mo-
ving the valve at the present.
The controller uses the average temperature of the previous day (24 hour period) e.g., when the
outdoor sensor malfunctions.
The average outdoor temperature that the controller uses for control. (setting the average
p. 12).
The average room temperature that the controller uses for control (see p. 44).
0...+130°C
-50...+50°C
-10...+80°C
0...+130°C
0...+130°C
0....100%
0....100%
-50...+50°C
Supply water temperature
Outdoor temperature
Room temperature
Return water temperature
Measurement 3 (4, 5)
(can be labelled)
Valve position
Cascade valve control
Outdoor ave. temp (prev. day)
Delayed outdoor temp.
measurement
Delayed room temp.
measurement
Measurement Range Measurement information
The measurements menu displays present information about connected sensors and valve posi-
tions. A factory set supply water sensor is connected to the controller. It has a separate plug-in for
outdoor temperature. Information about measurement channels 3 and 4 on pages 23-25. Measu-
rements 5 and 6 are also in use if an extension unit has been connected to the controller. Connect
the supply water sensor of the second heating control circuit (H2) to the extension unit (EXU-800).
When you take the H2 control circuit into use in process settings, automatically reserve measure-
ment 5 of the EH-800 controller for H2 control water heating measurement.
If a GSM is connected to the controller, you can read measurement information form a mobi-
le 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., TC01 Measurements)
Key word:
Measurements
Basic menu -> Measurements
 > Measurements
H1Supplywatertemperature 35.1°C
Outdoortemperature -18.2°C
H1Roomtemperature21.5°C
H2Supplywatertemperature32.5°C

7
Graphic presentation of measurement history information
Temperature measurement trend display:
Press OK at a temperature measurement, a trend display will appear
for that measurement.
Use the control knob to browse measurement history. The exact
measurement and time and date will appear at the top edge of the
display next to the cursor. As a factory setting, temperatures are sa-
ved every ten minutes (=600 s). Press OK to alternately zoom in or
zoom out the trend display. In case sampling interval is 10 minutes
(600 s), the distance between the vertical lines is either 10 minutes
or 1 hour. In this case, the controller’s memory contains history in-
formation from the last 10 days. You may change trend sampling in-
terval if you wish (Device settings -> Measurement channel settings,
p. 23) Press ESC to exit the trend display.
Use the trend display to easily monitor, e.g., temperature drops and
room temperature levels. You can also check outdoor temperatu-
res from the trend.
Basic menu -> Measurements -> Press OK at measurement information
H1-supplywater28.0108:26:19[34.7°C](5h)
38
28
The controller automatically ushes and calibrates the valve
once a week on (as a factory setting Monday at 08 am).The
controller rst completely closes the valve and then if the
ush function has been taken into use it opens it to the ush
position and then to the position determined by the control-
ler (see Device settings > Valve ushing, p. 35)
Automatic scaling according to the measured tempe-
ratures (28 ... 38°C in the example).
H1 Supply water temperature curve
Inspection moment (use the control knob to select the moment)
Supply water temperature (34.7 °C)
at the selection moment
H1Supplywater28.0108:26:19[34.7](5h)
38
28
The length of
the time period
on the display
You may download a trend le from EH-800 device to your pc via
controller web page and examine the trend chart on your pc display.
You may use Ouman Trend software to look at a trend le as a chart.
Go to www.ouman. to download the software.

8
Supply water temperature according to the curve at the present outdoor temperature.
Effect of the oor heating anticipate function on the supply water temperature (see p. 12).
The delaying effect of the outdoor temperature measurement on supply water control calculated
from the monitoring time period (see p 12).
Effect of ne adjustment on the supply water temperature
Effect of room compensation on the supply water
Additional ne adjustment to room compensation based on present control (effect of l control)
Effect on the supply water temperature of a temperature drop or big temperature drop by the week
clock control or exception calendar control.
Effect of ”Away” control on the supply water temperature. The switch, SMS, or control row
indicates where the home or away command has come from. For example, Home/Away SMS,
mobile phone control.
Effect of automatic autumn drying on the supply water temperature (se p. 48).
The supply water info shows which factors are effecting the supply 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). For example, if you see a temperature
drop in the supply water info you can determine which settings may be incorrect (e.g., mini-
mum or maximum limit settings).
According to the example in the diagram the supply water is 35.1°C. The supply water setting has
been adjusted 5,9 °C.using the ne adjustment. According to these the calculated supply water set-
ting is 41.0°C (=35.1 + 5.9).
Supply water according to curve
Effect of oor heating anticipate
Effect of outdoor temp. delay
Effect of ne adjustment
Effect of room compensation
Room compensation time adjustment
Time program effect on supply water
Home/Away control by switch
Home/Away control by SMS
Home/Away control by controller
Effect of autumn drying
Basic menu: Supply water info
Factors effecting the supply water temp.
Basic menu -> H1 (H2) Supply water info
HInt: If the room compensation’s time adjustment always adjusts the room temperature in the same
direction, e.g., +3°C when the outdoor temperature is below zero, it means that the curve has been
set too low. In this example, the supply water curve must be raised at -20°C outdoor temperature.
Explanation
 >H1Radiatorheating...H1Supplywaterinfo
Supplywateraccordingtocurve 35.1°C
Effectofneadjustment 5.9°C
Calculatedsupplywatersetting 41.0°C

9
The controller controls the supply water temperature to its calculated setting.
Key words:
H1 Supply water info
H2 Supply water info
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 ef-
fecting supply water control. The message cannot be changed or sent back to the controller.
Effect of maximum limit
Effect of minimum limit
Effect of return water compensation
Stand-by
H1 Summer function
Outdoor temp. limits the drop
Calculated supply water setting
Effect of setting delay
Supply water temperature
Supply water temperature drop due to the maximum limit.
Supply water temperature increase due to the minimum limit.
Both the general minimum limit set for the supply water and -20°C outdoor temperature effect the mi-
nimum limit.
Effect of the return water limiting functions on the supply water. If the return water temperature
drops below the lower limit the supply water temperature is raised and if the return water tem-
perature rises above the maximum limit the supply water temperature is lowered. The return
water temperature measurement can be taken into use only in the H1 control circuit.
Lowering effect of free temperature drop on supply water temperature
The controller closes the valve in summer function.
The effect of the temperature drop block on the supply water temperature (see p. 45)
Present supply water temperature determined by the controller. All the factors are considered
that affect the supply water temperature.
Effect of the limit set for the speed of change of the supply water setting on the supply water
temperature. (see p. 48).
Present measured supply water temperature.
Factors effecting the supply water temp. Explanation
Supply water info

10
Factor effecting the room temperature
Delayed room temperature that the controller uses in control (see p. 46).
Room temperature setting set by the user.
Effect of ne adjustment on the room temperature setting (see p. 4 and 48).
Room temperature setting change by the potentiometer (only in H1).
Room temperature drop by week clock or exception calendar.
Room temperature change controlled by the Home/Away switch.
Effect of a “Home” or “Away” command by a mobile phone on the room temperature.
Effect of a “Home” or “Away” control by the controller on the room temperature
Effect of automatic autumn drying on room temperature.
Present room temperature setting determined by the controller.
Example.
The room temperature has been set at 21.0°C.
Fine adjustment raises the temperature 0.5°C.
The controller sets the calculated room temperature at 21.5°C (=21.0+ 0.5).
Basic menu -> H1 (H2) Room temperature info
Delayed room temp. measurement
Room temperature setting
Effect of ne adjustment
Effect of potentiometer
Time program effect on room temp.
Home/Away control by switch
Home/Away control by SMS
Home/Away control by controller
Effect of autumn drying
Calculated room setting =
Explanation
 >H1Radiatorheating>Basicmenu
Measurements >
Supplywaterinfo >
Roomtemperatureinfo >
Settings >
 >H1Radiatorheating...Roomtemperaturinfo
Roomtemperatursetting 21.0°C
Effectofneadjustment 0.5°C
-----------------------------------
Calculatedroomsetting21.5°C
Basic menu: Room temperature info
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.
Key words:
H1 Room temperature info
H2 Room temperature info
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.