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.
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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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