Schneid MR-12 User manual

© 2016 SCHNEID GesmbH
All rights reserved. This manual has been issued by SCHNEID GesmbH for use.
SCHNEID GesmbH reserves the right to revisions and amendments of this manual at any time and with no obgligation to
announ e or to notify the users about su h amendments made..
SCHNEID GesmbH makes no warranties on the accuracy and correctness of the information.
SCHNEID GesmbH accepts no liability or responsibility for any errors or omissions in the content of the documentation.
All information that can be taken out of this documentation are supplied without any express, implied or ta it guarantee.

Table of Contents
Table of Contents
1 Safety notes ...................................................................................................................... 5
Danger of s alding:................................................................................................................................. 5
Danger of freezing:................................................................................................................................. 5
2 Regulator .......................................................................................................................... 6
2.1 Key allocation...................................................................................................................................... 6
2.2 odes................................................................................................................................................... 7
2.3 Correction of Day/Night ode............................................................................................................ 8
Day mode – Corre tion of day mode...................................................................................................... 8
Lowering Mode – Corre tion of Lowering Mode.....................................................................................8
3 Regulator enu ................................................................................................................ 9
3.1 ain enu............................................................................................................................................ 9
Modes for distri t heating........................................................................................................................ 9
Operation modes of heating ir uits.....................................................................................................10
Operation modes of boiler.................................................................................................................... 10
Operation modes of ir ulation............................................................................................................. 10
Operation modes of solar heating......................................................................................................... 10
Operation modes of buffer.................................................................................................................... 10
Operation modes of generator.............................................................................................................. 10
Operation modes of intermediate ir uit pump.....................................................................................10
3.2 District Heating.................................................................................................................................. 11
Primary Valve........................................................................................................................................ 11
Max. return temperature....................................................................................................................... 11
Return temperature............................................................................................................................... 11
Power.................................................................................................................................................... 11
Counter................................................................................................................................................. 11
3.3 Boiler................................................................................................................................................... 11
Mode..................................................................................................................................................... 11
Upper temperature................................................................................................................................ 11
Required boiler temperature (default 55°C)..........................................................................................11
Minimum boiler temperature (default 45°C)..........................................................................................12
Lower temperature................................................................................................................................ 12
Loading times....................................................................................................................................... 12
3.4 Circulation.......................................................................................................................................... 12
Mode..................................................................................................................................................... 12
Operation times.................................................................................................................................... 12
Return temperature............................................................................................................................... 12
3.5 Heating circuits.................................................................................................................................. 12
Mode..................................................................................................................................................... 12
Adjustment mode heating ir uit .......................................................................................................... 13
Required room temperature.................................................................................................................. 13
Room temperature................................................................................................................................ 13
Required temperature of initial operation.............................................................................................. 13
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Table of Contents
Heating times/Lowering times...............................................................................................................14
3.6 Buffer (heating boiler)....................................................................................................................... 14
Rotational speed of pump..................................................................................................................... 14
Upper temperature................................................................................................................................ 14
Upper required temperature................................................................................................................. 14
Lower temperature................................................................................................................................ 14
Lower required temperature................................................................................................................. 14
Buffer loading times.............................................................................................................................. 15
Rotational speed of pump..................................................................................................................... 15
Colle tor temperature........................................................................................................................... 15
Lower temperature................................................................................................................................ 15
Temperature of initial solar operation.................................................................................................... 15
Upper temperature................................................................................................................................ 15
3.8 Generator............................................................................................................................................ 15
Release................................................................................................................................................ 16
External energy..................................................................................................................................... 16
Se ondary required initial operation..................................................................................................... 16
Se ondary temperature of initial operation...........................................................................................16
Time until ON........................................................................................................................................ 16
Time until OFF...................................................................................................................................... 16
3.9 Intermediate circuit pump................................................................................................................. 17
Mode..................................................................................................................................................... 17
Se ondary required initial operation..................................................................................................... 17
Temperature of se ondary initial operation...........................................................................................17
4 Room Remote Control ................................................................................................... 18
4.1 Remote Control FBR6........................................................................................................................18
4.2 Remote Control FBR7........................................................................................................................19
5 Internal Level .................................................................................................................. 20
5.1 Entrance into the level......................................................................................................................20
5.2 Service code...................................................................................................................................... 20
5.3 Setting the clock time....................................................................................................................... 20
5.4 Time of absence................................................................................................................................ 20
5.5 Naming the circuits...........................................................................................................................20
6 Troubleshooting ............................................................................................................. 21
6.1 enu items cannot be opened.........................................................................................................21
6.2 No temperature display..................................................................................................................... 21
6.3 Other Problems.................................................................................................................................. 21
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1 Safty notes
1 Safety notes
Danger of scalding:
Some parts of this system may rea h temperatures ex eeding 55°C (for
thresholds of burning, see EN 563). Be sure to point out all possibly
existing dangers (su h as tou hable surfa es, high temperatures of used
water) to all persons operating this system.
Danger of freezing:
Make sure that the sele tor swit h does not remain in the MAINTENANCE position for longer periods of time
during winter. The heating pipes may freeze up.
AINTENANCE position:There is no antifreeze monitoring!
CAUTION: To disconnect the unit from the mains, use the all-polar switch on the
part of the builder.
Only a qualified expert must open the unit.
The unit is completely maintenance-free.
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2 Regulator
2 Regulator
2.1 Key allocation
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2 Regulator
2.2 Modes
A lamp on the sele tor swit h indi ates the urrent mode. The newly sele ted mode will be displayed on the
regulator s reen when hanging another mode.
Off/Antifreeze
The regulator’s operation will be dea tivated ex ept of the antifreeze swit h fun tion. The antifreeze swit h
fun tion will be a tivated when the external temperature falls below the antifreeze temperature.
Lowering Mode
The lowering mode of the heating ir uits will be a tivated regardless of the timer program, i.e. the required
temperature will be redu ed in a ordan e with the settings. Remote ontrol has priority. For explanation,
please refer on page 19.
Heating Mode
The heating mode of the heating ir uits will be a tivated regardless of the timer program. Remote ontrol
has priority. For explanation, please refer on page 19.
Automati Mode
The mode of the heating ir uits (heating or lowering mode) depends on the timer program and remote
ontrol.
Boiler Mode
The heating ir uits are dea tivated ex ept of the antifreeze. The boiler is harges in the usual way.
Party Mode
The heating mode of the heating ir uits is a tivated for a ertain period of time (adjustable). After this period
of time has expired, the regulator returns to the last sele ted mode.
MAINTENANCE
Swit hing off all outputs; no regulator fun tion will o ur.
CAUTION: NO Antifreeze !
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2 Regulator
2.3 Correction of Day/Night Mode
Day ode – Correction of day ode
The day mode must be set with the rotary button on the top
right. The value an be set from -4°C to +4°C and auses a
permanent in rease in the heating ir uits’ temperature of
the initial operation during day mode. The value here stands
for the room temperature. If no room sensor is onne ted,
this value is regarded as in reasing or lowering the
respe tive temperature of initial operation, respe tively, so
the room temperature around the set value will be hanged
Lowering Mode – Correction of Lowering Mode
The lowering mode is set with the rotary button on the top
right and then with the arrow key. The orre tion mode for
the lowering mode has now been a tivated. This value an
be set from -8°C to 0°C and auses a permanent adaptation
in the heating ir uits’ temperature of the initial operation
during the lowering mode. The value here stands for the
room temperature. If no room sensor is onne ted, this
value is regarded as in reasing or lowering the respe tive
temperature of initial operation, respe tively, so the room
temperature around the set value will be hanged.
The orre tion an be individually adjusted for ea h heating ir uit. The name of the respe tive heating
ir uit is displayed on the first line.
Seite 8 © 2016
Day correction for „ALL“ Heating circuits
Setback adjustment for „Heating circuit 0“

3 Regulator enu
3 Regulator enu
3.1 Main Menu
The main menu shows all the fun tions of the regulator. Apart
from that, the regulator indi ates the urrent modes as well as
the urrent temperatures of the individually ontrolled
omponents.
CAUTION: Menu items whi h do n ot open are not a essible for your level of authorization. For
hanges and questions, onsult your distri t heating operator.
Modes for district heating
OFF The distri t heating is not a tivated, there is no energy transmission
ON The distri t heating is in normal operation mode
RLB The limitation to return is a tivated
LBG The power output limitation is a tivated
MAN The distri t heating valve is in manual mode (manual)
EXT The distri t heating is OFF, supply through external sour es of energy (e.g. boiler)
Limitation to return
The distri t heating return temperature is limited to a value set by the distri t heating operator. For
questions or requests for hanges in this fun tion, onsult your distri t heating operator.
Power output limitation
The supply power is limited to the onne t load as per your ontra t. For questions or requests for
hanges in this fun tion, onsult your distri t heating operator.
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3 Regulator enu
Operation odes of heating circuits
OFF The heating ir uit is not a tivated
ON The heating ir uit is in normal operation mode
RLG Residual power → ele tri water heater is preferred; the heating ir uit is reset
ABS The heating ir uit is in lowering mode
WNR Se ondary warm-water setting → heating ir uit is OFF during boiler harging
FS The antifreeze is a tivated
PR Blo king → e.g. within blo king time (= OFF)
MAN Manual operation
AHZ Baking-out program → Drying of stone floor is a tivated
EXT External required default value (= ON)
Operation odes of boiler
OFF The boiler is in harging mode
ON The boiler is in loading time
MAN Manual operation
FS The antifreeze is a tivated
MIN The minimum load is a tivated
LSP Blo king of load → temperature of initial operation has not been rea hed
EXT Release for external boiler harging
Operation odes of circulation
OFF The ir ulating pump is not a tivated
ON The ir ulating pump is a tivated
Operation odes of solar heating
OFF The solar pump is not a tivated
ON The solar pump is a tivated
Operation odes of buffer
OFF The harging pump is not a tivated
ON The harging pump is a tivated
Operation odes of generator
OFF The generator is not a tivated
ON The generator is a tivated
Operation odes of inter ediate circuit pu p
OFF The pump is not a tivated
ON The pump is a tivated
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3 Regulator enu
3.2 District Heating
The transfer station is alled as distri t heating; it transfers the heat energy via a heat ex hanger.
Pri ary Valve
Indi ates as to how far the distri t heating valve is opened.
Max. return te perature
The set highest return temperature into the distri t heating
network.
Return te perature
The urrent return temperature into the distri t heating
network.
Power
This indi ates the urrent power output of distri t heating to the transfer station.
Counter
When sele ting this menu item, the heating ounter data menu
will open up. If a heat ounter is onne ted and onne ted
with the ontroller, all performan e values at present an be
read off in this menu.
3.3 Boiler
The warm-water boiler is used to prepare and make available
the ne essary heated water for usage.
Mode
This indi ates the urrent operation mode of the boiler.
min. load The boiler always arries out a
minimum loading outside its loading time if the minimum temperature of the boiler
has fallen below.
Legionella charge The boiler arries out its weekly Legionella harge.
Upper te perature
This indi ates the urrent upper boiler temperature. Moreover, you an set the “required boiler temperature”
and the “minimum boiler temperature“ here.
Required boiler te perature (default 55°C)
The required boiler temperature indi ates whi h temperature (measured on the upper boiler sensor) should
be sele ted to harge the boiler within a loading time or during a minimum temperature harge, respe tively.
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3 Regulator enu
Mini u boiler te perature (default 45°C)
The minimum temperature shows the lower limit for the harging status of the boiler (measured on the upper
boiler) and auses a subsequent harging, if the temperature has fallen below.
Lower te perature
This indi ates the urrent lower boiler temperature.
Loading ti es
This is to onfigure the loading times of the boiler.
3.4 Circulation
A ir ulation pump is used to immediately prepare and make
available the heated water in a building. For this purpose, the
heated water in the warm-water boiler is ontinuously
ir ulated through the water pipe. This is to prevent the water
for usage from ooling off in the pipe. If there is no ir ulation
pump, only old water would be available to the user when
turning on the tap.
Mode
This indi ates, whether the ir ulation is in operation or not.
Operation ti es
The fixes operation times for the ir ulation pump an be set here.
Return te perature
This indi ates the return temperature of the ir ulation to the warm-water boiler.
3.5 Heating circuits
A heating ir uit stands for a y le of heated water through a heating system (su h as radiators, floor
heating, et .).
CAUTION: If the regulator’s sele tor swit h is set to OFF/Antifreeze, boiler harging or maintenan e, the
sele tor swit h of the regulator will have priority over the remote ontrol.
Mode
Indi ates the urrent operation of the heating ir uit.
AUS Heating ir uit is not a tive
EIN Heating ir uit is in normal operating mode
RESTL Residual power → hot water is preferred, heating ir uit is regulated ba k
ABSENK Heating ir uit is in redu ed operation
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3 Regulator enu
NACHR Warmwasserna hrang → heating during boiler harging OFF
FROSTS Frost prote tion is a tive
SPERRE Lo k → e.g. within restri ted hours (= OFF)
ANUELL manual
AUSHEIZ S reed heating → floor drying is a tive
EXTSOLL external setpoint (= ON)
KÜHLEN when there is a distri t ooling station and the ir uit is in operation.
Adjust ent ode heating circuit
Sele tor swit h
The operation mode of the regulator is appli able. However, if it is set to the heating, lowering mode or to
OFF, the remote ontrol will have priority.
Party mode
If the party mode has been set for the heating ir uit, the heating ir uit will swit h to the heating mode for
the period of time set for the party mode. On e this period of time has expired, the heating ir uit will return
to the previous operation mode.
Timer program
Regardless of the sele tor swit h or remote ontrol, the heating ir uit is in heating mode during heating
times, and in the lowering mode outside the heating times.
Heating mode
The heating ir uit is ontinuous in the heating mode.
Lowering mode
The heating ir uit is ontinuous in the lowering mode.
OFF/Antifreeze
No ontrol fun tion of the heating ir uit at all, ex ept of the antifreeze fun tion.
Required roo te perature
The desired required room temperature an be set here. However, the required room temperature will be
visible only if a room remote ontrol has been onne ted.
Roo te perature
This indi ates the urrent room temperature of the heating
ir uit. However, the room temperature will be visible only if a
room remote ontrol has been onne ted.
Required te perature of initial operation
This indi ates the urrent required initial operation of the heating
ir uit. Moreover, the “swit h-off temperatures” an be onfigured
here as well.
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3 Regulator enu
Swit h-off temperature of day mode (default: 18°C)
If the mean value of the external temperature ex eeds this value during day mode, the respe tive heating
ir uit will be swit hed off (heating ir uit pump off, mixing valve CLOSED).
Swit h-off temperature of lowering mode (default: 10°C)
If the mean value of the external temperature ex eeds this value during lowering mode, the respe tive
heating ir uit will be swit hed off (heating ir uit pump off, mixing valve CLOSED).
A tual temperature of initial operation
This indi ates the a tual temperature of initial operation of the respe tive heating ir uit.
Heating ti es/Lowering ti es
The heating times or lowering times for the sele ted heating ir uit an be defined here. The type of the
times is set in the basi onfiguration of the regulator. Thus these terms in this menu item are alled heating
times or lowering times. For hanges or questions, onsult your distri t heating operator.
3.6 Buffer (heating boiler)
The buffer or heating boiler is a ontainer whi h is used for
storing heat energy. It is used to store the energy obtained
through distri t heating, solar system or similar in order to
avoid a ontinuous request for heat energy.
Rotational speed of pu p
This indi ates the rotational speed of the buffer- harging
pump.
Upper te perature
This indi ates the urrent upper buffer temperature.
Upper required te perature
This indi ates the required temperature of the buffer. It is the result of the maximum required initial operation.
If this maximum required initial operation is lower than the „minimum upper buffer temperature“ this value will
be used as required initial operation. This value an be onfigured when sele ting this item.
Minimum upper buffer temperature (default: 50°C)
This indi ates the upper minimum temperature of the buffer.
Lower te perature
This indi ates the urrent lower buffer temperature.
Lower required te perature
This indi ates the urrently al ulated lower required temperature of the buffer. The required temperature
below is al ulated with the maximum return of distri t heating minus hysteresis. The “hysteresis“ an be
onfigured when sele ting this item.
Hysteresis of maximum return temperature; buffer OFF
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3 Regulator enu
This hysteresis is used for al ulating the lower required buffer temperature. The lower required
temperature of the buffer is al ulated with the maximum return temperature of distri t heating minus this
hysteresis.
Buffer loading ti es
The loading times of the buffer an be set here.
3.7 Solar
The solar pump swit hes on as soon as the olle tor temperature is higher than the buffer temperature in
addition to the hysteresis.
Rotational speed of pu p
This indi ates the urrent rotational speed of the solar pump.
Collector te perature
This indi ates the urrent temperature of the solar olle tor.
Lower te perature
This indi ates the urrent solar buffer temperature.
Te perature of initial solar operation
This value will only be visible if an additional input/output module is available. Moreover, this value will only
be ne essary if the solar pump is ontrolled through the rotational speed.
Upper te perature
This value will only be visible if an additional input/output module is available.
3.8 Generator
Any additional sour es of energy (e.g. boiler) are alled generator. The regulator itself distinguishes between
a pure swit hing of a requirement of a generator.
Swit hing:
An existing heat generator is equipped with a temperature
sensor. If the sensor value of the generator is higher than
the required initial operation in addition to the hysteresis for
swit hing on, the regulator will swit h to the external heat
generator. The distri t heating will stop supplying after a
swit hing. The swit hing off o urs if the temperature of the
generator is lower than the required initial operation in
addition to the hysteresis of swit hing off.
Requirement :
If, for a ertain time, the required initial operation falls below, an existing heat generator (e.g. oil kettle) will
swit h on.
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3 Regulator enu
Release
This indi ates whether the external heat generator has been swit hed on.
External energy
This indi ates the available temperature of external energy generators.
Secondary required initial operation
This indi ates the urrent se ondary required initial operation.
If the item “Swit hing of generator” has been set here, the
“hysteresis for swit hing on“ as well as the “hysteresis for
swit hing off“ an be onfigured by way of onfirming this item.
Hysteresis of swit hing off (default: +5°C)
The heat generator will be swit hed on if the temperature of the external heat generator is higher than the
required initial operation in addition to this hysteresis.
Hysteresis of swit hing off (default: -5°C)
If the temperature of the external heat generator is lower than the required initial operator in addition to this
hysteresis, the heat generator will swit h off.
Secondary te perature of initial operation
This indi ates the urrent se ondary temperature of initial operation.
Ti e until ON
If the required initial operation falls below for a ertain period of time, the generator will swit h on when
required. This also shows the duration until swit hing on. The parameter „Swit hing on of Timeout“ an be
onfigured when sele ting this item.
Swit hing on of Timeout:
If the required initial operation for this time span falls below, the external heat generator will be swit hed on.
Ti e until OFF
This item in the menu will show the remaining duration until swit hing on. In this menu, the “minimum running
time” of the external heat generator an be onfigured as well.
Minimum running time
The minimum running time will allow a minimum heating time of the external heat generator. The external
heat generator will operate at least for this duration, if a release has been given. The purpose of this
swit hing is that the heat generator will need a ertain time in order to supply any energy at all. Moreover,
this also makes a short initializing of the heat generator unne essary.
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3 Regulator enu
3.9 Inter ediate circuit pu p
The intermediate ir uit pump will swit h on during the
operation of a ir uit. It is the pump of the main system.
Mode
This indi ates whether the intermediate ir uit pump is
a tivated or dea tivated.
Secondary required initial operation
This indi ates the required se ondary initial operation of the
transfer station.
Te perature of secondary initial operation
This indi ates the temperature of the se ondary initial operation of the transfer station. The se ondary side is
your home system, and the distri t heating on the primary part.
© 2016 Seite 17

4 Room Remote Control
4 Room Remote Control
4.1 Re ote Control FBR6
It is possible to provide ea h heating ir uit with an own remote ontrol. This remote ontrol allows for
sele ting the following fun tions:
A priority sele t swit h AUTOMATIC/DAY/NIGHT/OFF is provided for pre-sele ting the operation mode. An
adjusting ontrol with a range of plus/minus four degrees is provided for hanging the required room
temperature. A room sensor is integrated in the remote ontrol, whi h an be used for applying various
regulating programs for heating as well as for optimizing the SCHNEID regulator.
CAUTION: The sele tor swit h of the regulator will have priority over the remote ontrol if the sele tor
swit h of the regulator is set to OFF/Antifreeze, boiler harging or maintenan e.
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4 Room Remote Control
4.2 Re ote Control FBR7
It is possible for ea h heating ir uit to onne t a separate remote ontrol.
The following fun tions an be sele ted via the remote ontrol:
The remote ontrol SCHNEID-FBR7 is ompatible with the SCHNEID-Controllers of ODUL-Series
R08/ R12 with Communication-Base-Board C 08. The tou h s reen ontrol panel always shows the
time, the a tual room temperature and the operating status. Currently showing: Automati /day,
automati /night, automati on/off, or one of the 5 ele toral programs, whi h an be set down on the display
(Auto, Day, Night, Party and OFF). The two arrow buttons are used to hange the urrent room temperature
from -4 ° C to + 4 ° C. A room sensor is installed in the remote, whi h an be used for the appli ation of
various heating ontrol programs and for the optimization of the SCHNEID- ontroller.
Co unication with the re ote control
R eading possibility : a tual room temperature, urrent time, urrent onditions, setpoint (-4.0 ° C to + 4.0 ° C),
room temperature setting.
S etting option : Time (in HH: MM), urrent onditions (Programs to sele t), setpoint (-4.0 ° C to + 4.0 ° C),
room temperature setting.
ATTENTION: If the ontroller is set to OFF / frost prote tion, boiler loading or maintenan e, the
sele tor swit h of the ontroller takes pre eden e towards the remote ontrol.
© 2011 Seite 19

5 Internal Level
5 Internal Level
5.1 Entrance into the level
Hold both arrow keys pressed in this main menu until the
window Servi e Level appears on the regulator.
5.2 Service code
The servi e ode is ne essary for internal work on the
regulator. Your distri t heating operator is responsible for all
information and work on this level.
5.3 S etting the clock ti e
The regulator will set the lo k time automati ally, whereas an
automati syn hronization of the lo k time will be arried out
on e in 24 hours, if this regulator is onne ted with the distri t
heating operator via network. If this is not the ase, the lo k
time an be set manually.
5.4 Ti e of absence
To set the absen e time, press and hold both arrow keys in the main menu of the ontroller and
keep them pressed until you are on the servi e level.
Time of absen e FROM
During a time of absen e, all heating ir uits will be
regulated on permanent lowering. This setting will onfigure
the first day of the absen e fun tion starting around 00:00.
Time of absen e TO
During a time of absen e, all heating ir uits will be regulated on
permanent lowering. This setting will onfigure the last day of the
absen e fun tion ending at 24:00.
5.5 Na ing the circuits
The individual heating ir uits an be named individually here.
Seite 20 © 2011