OEG DHR-classic User manual

Universal heating controller
DHR - classic
DHR - comfort
DHR - expert
Operating manual
Dok. Nr. 112648 33/2010

Operating manual
DHR - classic DHR - comfort DHR - expert
2Dok. Nr. 112648 33/2010
Dear User
This programmable heating controller is a modern device with a variety of
functions, enabling optimal operation of a heating system offering a very high de-
gree of comfort. Most of the necessary settings are made by a technician before
the heating controller is used for the first time.
For this reason, you, the user of the heating system, should not be intimidated by
thiscomprehensiveinstructionbooklet!Alltheinformationyouneedtooperatethe
controller is in the first part ofthe booklet. You will find that operation of the device
is simple and logical.
Please read first the "Safety instructions" on page 7.

Operating manual
DHR - classic DHR - comfort DHR - expert
3Dok. Nr. 112648 33/2010
CONTROLS:
Functioning at User Level 1 (front cover closed)
Functioning at User Level 2 (front cover open)
A B
C
D
DHR comfortDHR comfort
Key C
Technician key
Lock key
Selector knob A
Select
operating mode
Setting knob B
Adjust comfort
level
Toggle key D
heating circuits
(DHR comfort only)
A
C
B
D
DHR comfortDHR comfort
Selector knob A
Select functions
Setting knob B
Set and query
values
RESET key CLR key
Toggle key D
heating circuits
(DHR comfort only)
Party key C

Operating manual
DHR - classic DHR - comfort DHR - expert
4Dok. Nr. 112648 33/2010
Overview of displays
The diagram shows a typical display in heating mode
(Cover closed, User Level ).
The diagram shows a display, with all the display symbols used for control.
(cover open, User Level 2.).
Cursor marks the
selected operating
mode
Measuredvalue,and
the corresponding
symbol, e.g., boiler
temperature
Controller output
Time of day and day of week
Current operating
mode
Domestic hot water
chargingenabledor
disabled
Temperature set-
tings at various times
for the relevant day
Cursor marks the
selected comfort
level
Operating
modes Comfort level
DHR - classic DHR - comfort DHR expert

Operating manual
DHR - classic DHR - comfort DHR - expert
Dok. Nr. 112648 33/2010 5
Contents
1 Safety instructions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2 Your heating controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.1 What the programmable controller does . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.2 User settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.3 Temperature information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.4 Effectiveness of settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3 First operating level. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3.1 Selecting a heating circuit (two heating circuits) . . . . . . . . . . . . . . . . . . . . 9
3.2 Selecting an operating mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3.3 Adjusting room temperature heating operations . . . . . . . . . . . . . . . . . . . 11
3.4 Locking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3.5 Measuring of emissions (chimney sweep service) . . . . . . . . . . . . . . . . . 12
4 Settings 2nd level (Cover open) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
4.1 Unlock during error message (TEM firing automatic). . . . . . . . . . . . . . . . 14
4.2 Switching on the party function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
4.3 Setting the time (clock). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
4.4 Setting the date . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
4.5 Setting the room temperature heating mode . . . . . . . . . . . . . . . . . . . . . . 16
4.6 Setting the room temperature for night reduction heating mode . . . . . . . 17
4.7 Setting the warm water temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
4.8 Adjusting the heating curve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
4.9 Setting the maximum supply temperature . . . . . . . . . . . . . . . . . . . . . . . . 19
4.10 Setting the heating limit (summer/winter) . . . . . . . . . . . . . . . . . . . . . . . . 19
4.11 Displaying the controller output ports. . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
4.12 Displaying temperatures and values . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
4.12.1 Set values and actual values . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
4.13 Transfer the value to the standard display (1st level) . . . . . . . . . . . . . . . 22
4.14 The standard clock programs (factory settings). . . . . . . . . . . . . . . . . . . . 23
4.14.1 Cooperation of the standard and the individual D.H.W.
clock program (Example). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
4.14.2 Reload of standard clock programs preset at the factory 25
4.15 Setting the clock programs for heating/D.H.W. . . . . . . . . . . . . . . . . . . . . 26
4.15.1 Checking the clock program for heating/D.H.W. mode. . . . . . . . . 26
4.15.2 Changing the clock program for heating/D.H.W mode . . . . . . . . . 26
4.16 Setting an individual D.H.W. clock program P1 . . . . . . . . . . . . . . . . . . . 28
4.16.1 Separating the clock program D.H.W. from the standard
clock program heating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
4.16.2 Display and change the individual D.H.W. clock program . . . . . . 29

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4.17 Setting the circulation pump clock program P1. . . . . . . . . . . . . . . . . . . . 29
4.17.1 Display and change the circulation pump clock program . . . . . . . 29
4.18 Vacation program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
4.18.1 Setting the vacation program . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
4.18.2 Vacation program display/change/terminate. . . . . . . . . . . . . . . . . 31
5 Service level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
5.1 Query operating data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
5.2 Switching output functions on and off . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
5.3 3. Level. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
5.4 Error message . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
5.4.1 General information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
6 Definitions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
7 Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

Operating manual
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1 Safety instructions
Regulatory compliance and safety information
This programmable controller is a modern electronic device.
This equipment complies with the following EC Directives:
• 73/23/EEC "Low Voltage Directive"
• 89/336/EEC "Electro-Magnetic Compatibility (EMC) Directive", including
amendment 92/31/EEC
The device is designed to be used with a heating appliance in accordance with the
manufacturer's specifications.
No other type of usage is permitted.
Safety
This device uses state-of-the-art technology and conforms to the relevant safety
regulations.
Danger
The device is electrically operated. Incorrect installation, or attempts by non-spe-
cialiststo repair the device,may result inelectricshocks, with fatal consequences.
Installation and commissioning may be carried out only by appropriately qualified
technical personnel. In general, the device and its accessories should not be ope-
ned up. Repairs should be carried out only by the manufacturer.
Instructions in this booklet that are marked with a warning symbol must
be observed.

Operating manual
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2 Your heating controller
2.1 What the programmable controller does
When correctly programmed, the device works in conjunction with an appropriate
heating system to ensure that heating to the required temperature occurs during
the programmed time-intervals. The available boilers (different forms of energy)
are used environmental carefully and efficiently according to the necessary heat
requirement.
2.2 User settings
As user, you can make the following settings:
•3.1 Selecting a heating circuit (two heating circuits), page 9
•3.2 Selecting an operating mode, page 10
•3.3 Adjusting room temperature heating operations, page 11
•3.4 Locking, page 11
•4.2 Switching on the party function, page 15
•4.3 Setting the time (clock), page 15
•4.5 Setting the room temperature heating mode, page 16
•4.6 Setting the room temperature for night reduction heating mode, page 17
•4.7 Setting the warm water temperature, page 17
•4.8 Adjusting the heating curve, page 18
•4.9 Setting the maximum supply temperature, page 19
•4.10 Setting the heating limit (summer/winter), page 19
•4.12 Displaying temperatures and values, page 21
•4.15 Setting the clock programs for heating/D.H.W., page 26
•4.16 Setting an individual D.H.W. clock program P1, page 28
•4.17 Setting the circulation pump clock program P1, page 29
All other adjustments should be made by technical personnel only.
Faulty adjustments may lead to malfunctioning of the heating system
or may shorten its life.
2.3 Temperature information
All temperature information is:
• if measured, in °C (Celsius)
• as temperature difference in K (Kelvin)
2.4 Effectiveness of settings
• 1. level: Modified settings become immediately effective
• 2. level: Modified settings become effective by changing the parameter or by
closing the cover

Operating manual
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Dok. Nr. 112648 33/2010 9
3 First operating level
3.1 Selecting a heating circuit (two heating circuits)
The corresponding heating circuit must be selected each time before a function
can be carried out. Depending on the heating circuit selected, the switch key
shows either "red" or "green".
Your heating expert can tell you which colour refers which heating circuit.
This can then be noted here:
Operating step Operation Display
Press the key Dto select the correct
heating circuit "green" or "red"! Standard display D
appears
Note reference: 1 (green) 2 (red)
Heating circuit
Generator
D

Operating manual
DHR - classic DHR - comfort DHR - expert
10 Dok. Nr. 112648 33/2010
3.2 Selecting an operating mode
Set using the knob
The arrow to the left in the display shows the selected operating mode.
Example front view: The setting becomes valid immediately.
Legend:
Note: In all operating modes the freeze protection is guaranteed.
Heating limits can switch the heating enterprise off.
On operating mode "Manual/Emergency" please call the specialist.
1) you can define your own domestic hot water-heating program.
Symbol Operating mode
Explanation
in accordance
with clock pro-
gram
continu-
ously OFF continu- ously ON
continu-
ous
heating
mode
continu-
ous
reduction
mode
Heating OFF
(Standby)
Clock program I
(1
Clock program II
Clock program III
Heating mode
Reduced heating
mode
Summer mode (1
Manual mode
Emergency mode
Heating mode
Domestic hot water mode
A

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3.3 Adjusting room temperature heating operations
The arrows to the right in the display show the adjusted temperature settings for
heating . The adjustment becomes valid immediately.
3.4 Locking
The lock preventsunintentional changes of settings. The lock applies to both hea-
ting circuits/boilers at the same time and includes all functions, except "measu-
ring of emissions" .
Operation step Operation Display
Ambient temperature increase
Example: +1.5 °C
Ambient temperature decrease
Example: - 3,0 °C
(save, absence)
Operation step Operation Display
Activate lock
Deactivate look
B
B
C
5 seconds
C
5 seconds

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12 Dok. Nr. 112648 33/2010
3.5 Measuring of emissions (chimney sweep service)
Note: Following activation of this function, heating is controlled according to the
set maximum temperature. Operation of this function for measuring emissions is
limited to 20 minutes and must be reactivated after this time if required.
Operation step Operation Display
Activate emission measurement
Deactivate emission measurement Standard display
1st level appears
C
C

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4 Settings 2nd level (Cover open)
Incorrect changes to the settings may cause the heating system to
malfunction or shorten its life.
Sym-
bol Function to be set
Factory settings Setting range Basic adjustment Adjustment Unit
"Setting the time (clock)"; page 15 pre-
sent * -h/m
"Setting the date"; page 16 pre-
sent * until
2079 M/T/J
"Setting the room temperature heating
mode"; page 16 20 10÷30 °C
"Setting the room temperature for night
reduction heating mode"; page 17 15 5÷20 °C
"Setting the warm water temperature";
page 17 55 10÷70 °C
"Adjusting the heating curve"; page 18 1.2 0.0÷5.0 -
"Setting the maximum supply tempe-
rature"; page 19 70 10÷90 °C
"Setting the heating limit (summer/win-
ter)"; page 19 18 0÷40 °C
Sym-
bol Function to be set
Unit
"Displaying temperatures and values"; page 21 °C
"The standard clock programs (factory settings)"; page 23
"Setting the clock programs for heating/D.H.W."; page 26 -
"Setting an individual D.H.W. clock program P1"; page 28 -
"Setting the circulation pump clock program P1"; page 29 -
"Vacation program"; page 30 -

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14 Dok. Nr. 112648 33/2010
* Clock reserve PM 2970/72 = 24h; PM 2975 = 2 years
4.1 Unlock during error message (TEM firing automatic)
If a firing automatic of a solid boiler is integrated in the plant, a possible error mes-
sage can be acknowledged.
Service level -
Access code
For technicians only -
"Switching on the party function"; page 15
An active vacation program is deleted -
RESET Restarts the controller. No settings are changed! -
CLR
•"Transfer the value to the standard display (1st level)"; page 22
•"Reload of standard clock programs preset at the factory"; page 25
• Reset the operational data , see
"5.1 Query operating data", page 32
-
Operation step Operation Display
1Select generator
2
Open front cover
Unlock:
Keep the key C pressed until the
burner symbol lights up briefly.
3
If the error was successfully repai-
red, the controller turns back to the
standard display within max. 3
minutes.
Close cover Standard display
1st level appears
Sym-
bol Function to be set
Unit
D
B
D
C
C

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Dok. Nr. 112648 33/2010 15
4.2 Switching on the party function
Note: The party function becomes valid for 3 hours from the start of the next
night reduction heating phase according to clock program.
An active vacation program is by activating the party function de-
leted!
4.3 Setting the time (clock)
Note: Change from winter time to summer time, and vice versa, is made au-
tomatically on the last Sunday of March and again in October. If the
controller is not connected to the line, no automatically change hap-
pens. As soon as the controller is connected to the line, change hap-
pens the following day between 2.00 and 3.00 o‘clock a.m.
Operation step Operation Display
Activate party function
Deactivate party function Standard display
1st level appears
Operation step Operation Display
Select the function
Set the time
Select another function
or close the cover
The setting is stored
Theselectedfunction or
the standard display
appears
C
C
A
B
Stunden
Minuten

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16 Dok. Nr. 112648 33/2010
4.4 Setting the date
A calendar program is available. This is programmed to the year 2099, and takes
leap years into account.
Note: On setting the date, the day of the week is indicated as follows:
1 = Monday, 2 = Tuesday, 3 = Wednesday, 4 = Thursday, 5 = Friday,
6 = Saturday, 7 = Sunday
4.5 Setting the room temperature heating mode
Operation step Operation Display
Select date
Example: October 24, 2003
Set the date
Example: November 09, 2003
Select another function
or close the cover
The setting is stored
Theselectedfunctionor
the standard display
appears
Operation step Operation Display
Select function
Set the selected room temperature.
Example: Heating 20.0 °C
The setting becomes valid immediately!
Select another function
or close the cover
The setting is stored
The selected function or
the standard display
appears
A
Year
Month Day
Day
B
A
B

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4.6 Setting the room temperature for night reduction hea-
ting mode
4.7 Setting the warm water temperature
The warm water boiler is now controlled by this temperature.
Changes should be discussed with a qualified technician.
Operation step Operation Display
Select function
Set the room temperature for night
reduction heating.
Example: reduced heating 18.0 °C
The setting becomes valid immediately!
Select another function
or close the cover
The setting is stored
The selected function or
the standard display
appears
Operation step Operation Display
Select function
Set the domestic warm water
temperature.
Example: DHW 55.0 °C
Select another function
or close the cover
The setting is stored
The selected function or
the standard display
appears
A
B
A
B

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18 Dok. Nr. 112648 33/2010
4.8 Adjusting the heating curve
Due to the deviation of room temperature to outside temperature each time, chan-
ges should be made as follows:
Changes are only processed slowly by the building. For this reason,
only one change should be made per day.
Operation step Operation Display
Select function
Set the heating curve.
Example: Heating curve 1.2
Select another function
or close the cover
The setting is stored
Theselectedfunctionor
the standard display
appears
Outside
temperature
during the day
Room temperature
too cold too warm
+5 until +15 °C Set slope of heating curve to
- 0.2 and base to + 5 K. Set slope of heating curve to + 0.2 and base to - 5 K.
-20 until +5 °C Set slope of heating curve
to + 0.2 Set slope of heating curve to - 0.2.
A
B

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4.9 Setting the maximum supply temperature
The maximum supply temperature is limited to the set value.
This is not a safety feature. Safety (protection against overheating)
must be ensured by a qualified technician.
4.10 Setting the heating limit (summer/winter)
Average outside temperature is upper as = heating "OFF"
Average outside temperature is lover as ( - 2 K) = heating "ON"
Note: The heating limit in night reduction period can be adjusted on the
setting 3-2.
Operation step Operation Display
Select function
Set the maximum supply temperature.
Example: maximum supply tempera-
ture 55 °C
Select another function
or close the cover
The setting is stored
Theselectedfunction or
the standard display
appears
Operation step Operation Display
Select function
Set the heating limit.
Example: heating limit 20 °C
Select another function
or close the cover
The setting is stored
The selected function or
the standard display
appears
A
B
A
B

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20 Dok. Nr. 112648 33/2010
4.11 Displaying the controller output ports
Dependingon thestateoftheunitandtheoperating mode, someofthesesymbols
will be shown.
Symbol Designation heating circuit/generator
(1=green; 2=red)
DHR - classic DHR - comfort DHR - expert
1
green 2 red 1 green 2 red
Modulation heat gene-
rator FA X X X X X
Generator I or
burner stage I b1 X X X
Burner stage II b2 X X X
Heating circuit mixing
valve open M+ X X X X
Heating circuit mixing
valve closed M- X X X X
Heating circuit circula-
tion pump UX X X X X
Charging pump/deflec-
tor valve LX X X
Circulation pump DHW CX