Technische Alternative UVR 63H Specification sheet

UVR 63H
Version 7.6 EN
Universal heating controller
Operation
Installation instructions
en

3
Contents
Safety requirements ..............................................................................................................4
Maintenance....................................................................................................................................... 4
Generally applicable rules ....................................................................................................5
Hydraulic diagrams ...............................................................................................................6
Diagram 0: Heating circuit with up to 2 heat sources ..................................................................... 6
Diagram 16: Automatic boiler, cylinder, heating circuit (without mixer), burner demand................ 8
Diagram 64: Boiler circuit pump, mixer for return flow booster..................................................... 12
Scheme 80: Heating circuit, (automatic) boiler, cylinder, charging pump..................................... 14
Version 1: Automatic boiler, buffer cylinder, buffer charging pump .......................................... 14
Version 2: Automatic boiler, buffer cylinder, DHW cylinder charging pump.............................. 15
Version 3: Solid fuel boiler, buffer cylinder and DHW cylinder charging pump......................... 16
Diagram 96: Automatic boiler, heating circuit (with electrothermal mixer), burner demand ......... 18
Diagram 112: Heating circuit (with electrothermal mixer), DHW cylinder..................................... 20
Diagram 128: Heating circuit with burner demand, switchover to cooling with cooler demand....22
Installation instructions ......................................................................................................24
Sensor installation............................................................................................................................ 24
Sensor lines ..................................................................................................................................... 24
Installing the device.......................................................................................................................... 25
Electrical connection ........................................................................................................................ 25
Special connections...................................................................................................................... 26
Operation..............................................................................................................................27
Change a value (parameter) ............................................................................................................ 27
The basic control level........................................................................................................28
Optional displays in the basic control level....................................................................................... 30
The status display ............................................................................................................................ 31
The time program menu................................................................................................................... 32
Date setting DATE........................................................................................................................ 33
The parameter menu Par.....................................................................................................34
Setting method heat curve TEMP / R RISE ..................................................................................... 35
Frost protection OTF / RTF .............................................................................................................. 37
Automatic / manual mode ................................................................................................................ 38
O AUTO........................................................................................................................................ 38
M AUTO........................................................................................................................................ 38
C AUTO........................................................................................................................................ 39
The main menu Men ............................................................................................................39
Summary.......................................................................................................................................... 40
Language DEUT, ENGL................................................................................................................... 40
Code number CODE........................................................................................................................ 40
Sensor menu SENSOR.................................................................................................................... 40
Sensor type .................................................................................................................................. 41
Determination of average AV ....................................................................................................... 42
Symbol allocation AIC .................................................................................................................. 43
Mixer menu MIXER.......................................................................................................................... 44
Heating pump menu PUMP.............................................................................................................. 45
Pump speed control PSC................................................................................................................. 48
Control output COP 0 to 10 V / PWM (twice) .................................................................................. 50
Heat quantity meter HQC (three times)............................................................................................ 56
External sensors EXT DL................................................................................................................. 59
Tips on troubleshooting......................................................................................................60
Table of settings ..................................................................................................................61
Information on the Eco-design Directive 2009/125/EC.....................................................64
Technical data......................................................................................................................65

4
Safety requirements
These instructions are intended exclusively for authorised profession-
als. All installation and wiring work on the controller must only be car-
ried out in a zero-volts state.
The opening, connection and commissioning of the device may only be
carried out by competent personnel. In so doing, all local security re-
quirements must be adhered to.
The device corresponds to the latest state of the art and fulfils all necessary safety condi-
tions. It may only be used or deployed in accordance with the technical data and the safety
conditions and rules listed below. When using the device, the legal and safety regulations
apposite to the particular use are also to be observed. Incorrect use will result in the negation
of any liability claims.
►The device must only be installed in a dry interior room.
►It must be possible to isolate the controller from the mains using an all-pole isolating de-
vice (plug/socket or double pole isolator).
►Before starting installation or wiring work, the controller must be completely isolated from
the mains voltage and protected against being switched back on. Never interchange the
safety extra-low voltage connections (sensor connections) with the 230V connections. De-
structive and life-threatening voltages at the device and the connected sensors may occur.
►For safety reasons, the system should only be left in manual mode when testing. In this
operating mode, no maximum temperatures or sensor functions are monitored.
►Safe operation is no longer possible if the controller or connected equipment exhibits visu-
al damage, no longer functions or has been stored for a lengthy period of time under un-
suitable conditions. If this is the case, place the controller and equipment out of service
and secure against unintentional use.
Maintenance
The system does not require maintenance if handled and used properly. Use a cloth mois-
tened with soft alcohol (such as spirit) to clean. Harsh cleaning agents and solvents such as
chlorethenes or tri-gases are not admissible.
As the components relevant to accuracy are not subjected to loads if used properly, long-
term deviation is very low. The unit thus cannot be adjusted. Hence, no calibration is possi-
ble.
The design characteristics of the unit must not be changed during repairs. Spare parts must
correspond to the original parts used to restore the manufactured condition.

5
Generally applicable rules
for correct utilization of this control system
The expression "heating = active" in the linking formulae relates only to the release
specified in the "PUMP" menu or heating pump blockade conditions, but not however
to a possible switching off or release of the heating pump via a minimum threshold
value.
If no room sensor is used, the room influence RI in the menu MIXER must be set to
Zero and the sensor S1 in the SENSOR menu set to FIXED VALUE (e.g. 20°C).
For use with floor and wall heating systems a safety thermostat is mandatory as re-
quired for conventional heating control units. To avoid consequential damage this has
to switch off the heating circuit pump independently of controller output in the event of
excess temperature.
The speed control is only meaningful for certain conditions. One is use it to limit the re-
turn temperature of the heating circuit. In some cases it can even replace the mixer by
using the speed control to hold the room temperature constant at the temperature
specified in the time program. In some cases it can even replace the mixer by using
the speed control to hold the room temperature constant at the desired temperature
(although without the time program)

Additional functions
The following functions can be additionally activated via the main menu ENTER/Men:
Pump speed control PSC
2 control outputs COP
3 heat quantity meters HQC
External sensors EXT DL

6
Hydraulic diagrams
Diagram 0: Heating circuit with up to 2 heat sources
A1 = (S4 > min1 ) & (Heating = active)
If no room sensor is used, the room influence RI in menu MIXER must be set to zero and the
sensor S1 in the SENSOR menu set to FIXED VALUE (e.g. 20°C).
Program 0: Enabling of heating circuit pump A1, when the sensor S4 has exceeded the
minimum threshold min1.If the sensor S4 is not used, then it must not be switched to OFF.
To avoid the display "999" it is possible to allocate the sensor S4 in the menu SENSOR a
fixed temperature, which must be higher than min1.
All programs +1: As program 0 however the heating circuit pump A1 is also enabled by
sensor S5 and minimum threshold min2 (2 generators for the heating circuit).
A1 = ((S4 > min1 ) or (S5 > min2)) & (Heating = active)
A1 off
S4 < min1
A1 on
Switch-off cond. PUMP
A1 off
Required settings:
Basic control level
Time
Operating mode (preferably AUTO)
Set room temperature for lowering mode RTL
Set room temperature for normal operation RTN
Time program for normal operation
Parameter menu
Program number PR
min1... cylinder S4 A1 (if heating circuit active)
min2 ... see all programs + 1
Heating curve TEMP or R RISE
Flow maximum and minimum temp. (PREmax, PREmin)
Parameter frost protection mode (OTF, RTF)
Menu Men
MIXER (Room influence etc.) and PUMP (Switch-off
conditions)
S5 for pro
g
ram +1

7
All programs +2: As program 0 however output of the set flow temperature via the
control output (e.g. for burner modulation).
SCALING: 0°C = 0.0 V
100°C = 10.0 V
Example: The set flow temperature 55°C is output at the control output as 5.5 volts.
If the pump is switched off due to one of the switch-off conditions (menu PUMP), then 0V is
output to the control output. If switching off is because of condition S4 < min1 then a voltage
is output corresponding to the set flow temperature calculated by the controller.
In menu COP1 in this program there are the following setting options:
OFS Offset value for set flow temperature, adjustment range -50°C … +50°C, fs = 0
0-100 Output mode, 0-100 or 100-0, fs = 0-100
MIN Minimum output value (Adjustment range 0 … 100), fs = 0
MAX Maximum output value (Adjustment range 0 … 100), fs = 100
ACT Actual output value
TST Adjustable test value (adjustment range 0 … 100). Calling TST leads automatically to
manual mode. As soon as the value above the key (= Entry) flashes, the control
output indicates the set values.
All programs +4: As program 0 however output of mixer control via the control output (for
mixer with 0-10V control).
In menu COP1 in this program there are the following setting options:
PRO Proportional part of the PID controller, fs = 5
INT Integral part of the PID controller, fs = 0
DIF Differential part of the PID controller, fs = 0
0-100 Output mode, 0-100 or 100-0, fs = 0-100
MIN Minimum output value (Adjustment range 0 … 100), fs = 0
MAX Maximum output value (Adjustment range 0 … 100), fs = 100
ACT Actual output value
TST Adjustable test value (adjustment range 0 … 100). Calling TST leads automatically to
manual mode. As soon as the value above the key (= Entry) flashes, the control
output indicates the set values.
Note: Only one of the two auxiliary programs ("+2" or "+4") can be used.

8
boiler req.
M with 0-10V-
outp. possible
Diagram 16: Automatic boiler, cylinder, heating circuit (without mixer),
burner demand
If no room sensor is used, the room influence RI in menu MIXER must be set to zero and the
sensor S1 in the SENSOR menu set to FIXED VALUE (e.g. 20°C).
A3= Burner
demand
Required settings:
Basic control level
Time
Operating mode (preferably AUTO)
Set room temperature for lowering mode RTL
Set room temperature for normal operation RTN
Time program for normal operation and burner demand (time program 1-
4), hot water (time program 5)
Parameter menu
Program number PR
min1 ... boiler S4 A1, A2 diff1 … boiler S4 – cylinder S5 A2
min2 … boiler S4 A3 diff2 … boiler S4 – NP A3
max1 … cylinder S5 A2, A3 max2 … boiler S4 A3
Heating curve TEMP or R RISE
Flow maximum and minimum temperature (PREmax, PREmin)
Parameter frost protection mode (OTF, RTF)
Menu Men
MIXER (Room influence etc.) and PUMP (Switch off conditions)
A1 off A2 off
S4 < min1 S4 < min1
diff1
A1 on A2 on
Switch-off condition S5 > max1
PUMP (if heating active)
A1 off A2 off
Burner demand A3
S4 < max2
and
S5 < max1 and Time program 5
or
Heating active andS4 < min2
or
Heating active andS4 <NP +diff2
(NP = set flow temperature)
S3 for pro
g
ram +8

9
Program 16: Release of A1 and A2 via S4, burner demand A3.With active heating, the load
pump A2 is switched off, once the set cylinder temperature max1 is reached.
Load pump A2 continues running when the heating is inactive until the boiler minimum
temperature min1 or the difference diff1 between T4 and T5 is undershot, so that the residu-
al energy of the boiler is dissipated (independent of max1).
For adjustable boiler operation without the mixer it makes sense to set the threshold
values min1 and min2 to PREmin and to activate the pump switch-off condition PN < PM in
the PUMP menu.
A1 = S4 > min1 & (heating = active)
A2 = S4 > min1 & S4 > S5 + diff1 & (S5 < max1 or (heating = not active))
A3 = S4 < max2 and ((S5 < max1 & time prog.5) or ((S4 < min2 or S4 < NP + diff2) &
(heating = active))
In this program, the switching mode of the values diff2and diff2functions in exactly the
opposite way: the value diff2in conjunction with the calculated set flow temperature gives
the switch-on threshold and diff2the switch-off threshold.
All programs +1: DHW cylinder priority – if S5 is less than the threshold max1 and the
burner demand A3 is enabled by time program 5, the heating pump A1 is disabled.
A1 = S4 > min1 & (heating = active) & not (S5 < max1 & time program 5)
All programs +2: As program 16, however load pump function only in respect of S5, inde-
pendent of the heating
A2 = S4 > min1 & S4 > S5 + diff1 & S5 < max1
All programs +4: As for program 16, however with output of a 0 – 10V voltage via the con-
trol output 1 for burner modulation as long as A3 is active.
For activation of A3 via Output value at control output 1
S5 < max1 max1 + 10.0 K + offset value OFS
Heating active and S4 < min2 min2 + offset value OFS
Heating active and S4 < NP + diff2 NP + diff2 + offset value OFS
Fixed scaling: 0°C = 0.0 V
100°C = 10.0 V
Example: The output value 55°C is output at the control output as 5.5 volts.
With A3 in operating condition OFF control output 1 is set to 0V.
In menu COP1 in this program there are the following setting options:
OFS Offset value for output value, adjustment range -50K … +50K, fs = 0
0-100 Output mode, 0-100 or 100-0, fs = 0-100
MIN Minimum output value (Adjustment range 0 … 100), fs = 0
MAX Maximum output value (Adjustment range 0 … 100), fs = 100
ACT Actual output value
TST Adjustable test value (adjustment range 0 … 100). Calling TST leads automatically to
manual mode. As soon as the value above the key (= Entry) flashes, the control
output indicates the set values.

10
All programs +8: As program 16, but with output of the mixer control via the control out-
put 1(for mixer with 0-10V input, together with the additional flow sensor S3).
In menu COP1 in this program there are the following setting options:
PRO Proportional part of the PID controller, fs = 5
INT Integral part of the PID controller, fs = 0
DIF Differential part of the PID controller, fs = 0
0-100 Output mode, 0-100 or 100-0, fs = 0-100
MIN Minimum output value (Adjustment range 0 … 100), fs = 0
MAX Maximum output value (Adjustment range 0 … 100), fs = 100
ACT Actual output value
TST Adjustable test value (adjustment range 0 … 100). Calling TST leads automatically to
manual mode. As soon as the value above the key (= Entry) flashes, the control
output indicates the set values.
Note: Only one of the two auxiliary programs ("+4" or "+8") can be used.
The time program 5 is reserved for the hot water demand A3 (S5 < max1) (but still deac-
tivated ex works). Only the time programs 1 to 4 are therefore available for the heating cir-
cuit.
Program 32: As diagram 16, including the possibility of selecting all the following programs
(+1, +2, +4, +8) but with a second energy source with S6 and min2 for the release of the
heating circuit pump A1 (...and only for this!) and simple burner demand via S6. Here the
min2 threshold to A3 is taken over by max2.
Load pump A2 continues running when the heating is inactive until the boiler minimum
temperature min1 or the difference diff1 between T4 and T5 is undershot, so that the residu-
al energy of the boiler is dissipated (independent of max1).
A1 = (S4 > min1 or S6 > min2) & (heating = active)
A2 = S4 > min1 & S4 > S5 + diff1 & (S5 < max1 or (heating = not active))
A3 = (S6 < max2)
Without time program for burner demand A3!
A1 off A2 off
if S4 < min1 S4 < min1
and S6 < min2
diff1
A1 on A2 on
Switch-off condition S5 > max1
PUMP (if heating active)
A1 off A2 off
Burner demand A3
S6 < max2

11
Program 48: As diagram 16 including the possibility of selecting all the following programs
(+1, +2, +4, +8) but with second energy source with S6. All conditions for S4 also apply for
S6. The higher temperature is effective (takes precedence) in all functions.
Load pump A2 continues running when the heating is inactive until the boiler minimum
temperature min1 or the difference diff1 between T4 & T6 and T5 is undershot, so that the
residual energy of the boiler is dissipated (independent of max1).
A1 = (S4 > min1 or S6 > min1) & (heating = active)
A2 = (S4 > min1 or S6 > min1) & (S4 > S5 + diff1 or S6 > S5 + diff1)& (S5 < max1 or
(heating = not active))
A3 = S4 < max2 und ((S5 < max1 & Timeprogr.5) or ((S4 < min2 and S6 < min2) or (S4 <
NP + diff2 and S6 < NP + diff2)) & (heating = active))
The time program 5 is reserved for the hot water demand A3 (S5 < max1) (but still deac-
tivated ex works). Only the time programs 1 to 4 are therefore available for the heating cir-
cuit.
A1 off A2 off
if S4 < min1 if S4 < min1
and S6 < min1 and S6 < min1
diff1
A1 on A2 on
Switch-off condition S5 > max1
PUMP (if heating active)
A1 off A2 off
Burner demand A3
S4 < max2
and
S5 < max1 and Time program 5
or
Heating active and S4 < min2
and S6 < min2
or
S4 < NP + diff2 and S6 < NP + diff2
and Heating active
(NP = set flow temperature)

12
Diagram 64: Boiler circuit pump, mixer for return flow booster
Program 64: Release of boiler circuit pump A1, if S4 is greater than the threshold min1 and
S4 is higher than S5 by the difference diff1 and S5 has not exceeded the threshold max1.
A1 = S4 > min1 & S4 > (S5 + diff1) & S5 < max1
Required settings:
Basic control level
Time
Parameter menu
Program number PR
min1 … Boiler S4 A1 diff1 … Boiler S4 – Cylinder S5 A1
max1 … Cylinder S5 A1 FV … fixed value (value for return flow
booster) in return line S3 A2/3
Menu Men
MIXER (Mixer run time RT)
All setting parameters necessary for return flow booster (program 64) are
hidden in the menus!
A1 off
S4 < min1
diff1
A1 on
S5 > max1
A1 off
Mixer control
A2 / A3
Fixed value FV at sensor S3
(fs = 60°C)

13
Program 65: As program 64, however with additional 10 V burner demand via S6 and S5 at
control output 2
A1 = S4 > min1 & S4 > (S5 + diff1) & S5 < max1
Control output COP2: 10 V = S6 < min3 (burner on)
0 V = S5 > max3 (burner off)
In the menu COP2 the function can be changed from "NORMAL" (=fs) to "INVERSE". In the
"INVERSE" setting, 0 volts is output at the control output, if the threshold min3 is undercut
and 10V, if the threshold max3 is exceeded.
Subsequently, an auxiliary relay can be connected to the control output HIREL-STAG, which
forwards the burner demand in potential-free format.
Program 66: As program 64, however with additional 10 V burner demand via S6 and S2 at
control output 2
A1 = S4 > min1 & S4 > (S5 + diff1) & S5 < max1
Control output COP2: 10 V = S6 < min3 (burner on)
0 V = S2 > max3 (burner off)
In the menu COP2 the function can be changed from "NORMAL" (=fs) to "INVERSE". In the
"INVERSE" setting, 0 volts is output at the control output, if the threshold min3 is undercut
and 10V, if the threshold max3 is exceeded.
Subsequently, an auxiliary relay can be connected to the control output HIREL-STAG, which
forwards the burner demand in potential-free format.
Additional required settings:
min3 … COP2 on (10V) S6 (fs = 40°C)
max3 … COP2 off (0V) S5 (fs = 65°C)
All setting parameters necessary for program 65 are hidden
in the menus!
Additional required settings:
min3 … COP2 on (10V) S6 (fs = 40°C)
max3 … COP2 off (0V) S2 (fs = 65°C)
All setting parameters necessary for program 66 are hidden
in the menus!

14
Scheme 80: Heating circuit, (automatic) boiler, cylinder, charging pump
Version 1: Automatic boiler, buffer cylinder, buffer charging pump
Program 80: Enabling of the heating circuit pump A1 above the minimum thresholds. The
load pump is switched on based on the temperature difference between boiler S4 and buffer
S6 via the control output COP 1. The burner demand at the control output COP 2 is activated
either by a base temperature min3 or max3 or by undershooting of the set flow temperature
NP plus the difference diff2 at the buffer sensor S5. The burner demand is interrupted if the
temperature at boiler sensor S4 undershoots threshold max2.
COP2 = Burner
demand
COP1
A1 off COP1 off
if S4 < min1 S4 < min1
and S5 < min2
A1 on diff1 COP1
Switch-off cond. PUMP S6 > max1
A1 of
f
COP1 of
f
Required settings:
Basic control level: Time
Operating mode (preferably AUTO) Set room temp. for lowering mode RTL
Set Room temp. for normal operation RTN time programs for normal operation
Parameter menu: Program number PR
min1... Boiler S4 A1 (heating circuit active), COP1
min2 ... Cylinder S5 A1 (heating circuit active) min3 ... Burner dem. on S5 COP2
max1 ... Cylinder S6 COP1 max2 ... Burner dem.S4 COP2
max3 ... Burner dem. off S5 COP2
diff1 ... Boiler S4 – Tk. S6 COP1 diff2 ... Offset to set flow temp.NP COP2
Heat curve TEMP or R RISE
Flow maximum and minimum temperature PREmax, PREmin)
Parameter frost protection mode (OTF, RTF)
Menu Men
MIXER (Room influence etc.) and PUMP (Switch off conditions)
Burner demand
COP2
S4 < max2
and
on S5 < min3 (fs = 40°C)
off S5 > max3 (fs = 65°C)
or
heating active and S5 < NP + diff2
(NP = set flow temperature)

15
A1 = ((S4 > min1 ) or (S5 > min2)) & (heating = active)
COP1 10V (on) = S4 > min1 & S4 > (S6 + diff1) & S6 < max1
COP2 10V (on) = S4 < max2 & (S5 < min3 or (S5 < (NP + diff2) & heating = active)
COP2 0V (off) = S4 > max2 or (S5 > max3 and (S5 > (NP + diff2) & heating = active)
If no room sensor is used, the room influence in the menu MIXER must be set to zero and
the sensor S1 set to a fixed value (e.g. 20°C).
The load pump and the burner demand are switched using 2 additional auxiliary relays
HIREL-STAG (special accessories).
The auxiliary relay for the control output 1 (load pumps) must be installed it its own, suitable
housing for space reasons and due to the separation low voltage/mains voltage.
If a high efficiency pump is to be switched with the auxiliary relay, due to the lower switch-
ing capacity, an external relay with sufficient switching capacity must be interposed.
If the burner demand is directly controlled via the burner modulation (no relay) then within the
"COP2" menu, there is the possibility to set the mode of the control output form "NORMAL" to
"INVERSE", so that the burner demand request occurs with output of 0V instead of 10V.
In this program, the switching mode of the values diff2and diff2functions in exactly the
opposite way: the value diff2in conjunction with the calculated flow set temperature gives
the switch-on threshold and diff2the switch-off threshold.
The following additional versions can also be achieved with program 80:
Version 2: Automatic boiler, buffer cylinder, DHW cylinder charging pump
S4 = S5 Transfer of value from S5.
Instead of a measured value the input S4 receives its (temperature) information
from input S5 (Menu SENSOR).
COP2 = Boiler
demand
COP1

16
Version 3: Solid fuel boiler, buffer cylinder and DHW cylinder charging pump
This version does not use control output 2 (COP2).
All programs +1: DHW cylinder priority – heating circuit pump A1 is blocked if S6 is lower
than threshold max1.
Program 81 (80+1) (only recommended when using version 2 or 3):
A1 = ((S4 > min1 ) or (S5 > min2)) & (heating = active) & COP1 OFF
Program 83 (=80+2+1):
A1 = (heating = active) & COP1 OFF
COP1

17
All Programs +2:
The burner demand at control output STAG 2 is enabled either if the threshold min3 is un-
dershot at DHW cylinder sensor S6 or if the set flow temperature SV plus differential diff2 is
undershot at buffer sensor S4. The burner demand is interrupted if the temperature at boiler
sensor S5 undershoots threshold max2.
A1 = (heating = active)
COP1 10V (on) = S4 > min1 & S4 > (S6 + diff1) & S6 < max1
COP2 10V (on) = S5 < max2 & (S6 < min3 or (S4 < SV + diff2))
COP2 0V (off) = S5 > max2 or (S6 > max3 & (S4 > SV + diff2))
COP1 off
S4 < min1
A1 on diff1 COP1
Switch-off cond. PUMP S6 > max1
A1 off COP1 off
Required settings:
Basic control level: Time
Operating mode (preferably AUTO) Set room temp. for lowering mode RTL
Set room temp. for normal operation RTN time programs for normal operation
Parameter menu: Program number PR
min1 ... Buffer S4 COP1 min3 ... Burner demand on S6 COP2
max1 ... DHW cylinder S6 COP1 max2 ... Burner demand off S5 COP2
max3 ... Burner demand off S6 COP2
diff1 ... Buffer S4 – CYL S6 COP1 diff2 ... Offset to set flow temp.NP COP2
Heat curve TEMP or R RISE
Flow maximum and minimum temperature PREmax, PREmin)
Parameter frost protection mode (OTF, RTF)
Menu Men
MIXER (Room influence etc.) and PUMP (Switch off conditions)
Burner demand
COP2
S5 < max2
and
on S6 < min3 (fs = 40°C)
off S6 > max3 (fs = 65°C)
or
S4 < NP + diff2
(NP = set flow temperature)
COP2 = Burner
demand
COP1

18
Diagram 96: Automatic boiler, heating circuit (with electrothermal mixer),
burner demand
Warning!
This diagram is not suitable for 3-point mixer motors!
If no room sensor is used, the room influence RI in the menu MIXER must be set to zero and
the sensor S1 set to a fixed value (e.g. 20°C).
A3 = Burner
demand
A1 = Electro-
thermal mixer
Required settings:
Basic control level: Time,
Operating mode (preferably AUTO) Set room temperature for lowering mode RTL
Set room temperature for normal operation RTN
Time program for normal operation and burner demand (time program 1-4)
Parameter menu: Program number PR
min1 … boiler S4 A2 min2 … boiler S4A3
diff2 … boiler S4 – NP A3 Heat curve TEMP or R RISE
Flow maximum and minimum temperature PREmax, PREmin)
Parameter frost protection mode (OTF, RTF)
Menu Men
MIXER (Room influence etc.) and PUMP (Switch off conditions)
PSC (Pump speed control) settings: AC I3, DVA = PN
if necessary, readjustment of the values PRO, INT and DIF
A2 off
S4 < min1
A2 on
Switch-off condition PUMP.
A2 off
Burner demand A3
Heating active and S4 < min2
or
Heating active and S4 < NP + diff2
(NP = set flow temperature)

19
Program 96: Release of A2 via S4, burner demand A3.
For adjustable boiler operation without the mixer it makes sense to set the threshold
values min1 and min2 to PREmin and to activate the pump switch-off condition PN < PM in
the PUMP menu.
A1 = Thermal mixer
A2 = S4 > min1 & (heating = active)
A3 = (S4 < min2 or S4 < NP + diff2) & heating = active
In this program, the switching mode of the values diff2and diff2functions in exactly the
opposite way: the value diff2in conjunction with the calculated pre-run set temperature
gives the switch-on threshold and diff2the switch-off threshold.
All programs +4: As for program 96, however with output of a 0 – 10V voltage via the con-
trol output 1 for burner modulation as long as A3 is active.
For activation of A3 via Output value
Heating active and S4 < min2 min2 + offset value OFS
Heating active and S4 < NP + diff2 NP + diff2 + offset value OFS
Fixed scaling: 0°C = 0.0 V
100°C = 10.0 V
Example: The output value 55°C is output at the control output as 5.5 volts.
With A3 in operating condition OFF control output 1 is set to 0V.
In menu COP1 in this program there are the following setting options:
OFS Offset value for output value, adjustment range -50K … +50K, fs = 0
0-100 Output mode, 0-100 or 100-0, fs = 0-100
MIN Minimum output value (Adjustment range 0 … 100), fs = 0
MAX Maximum output value (Adjustment range 0 … 100), fs = 100
ACT Actual output value
TST Adjustable test value (adjustment range 0 … 100). Calling TST leads automatically to
manual mode. As soon as the value above the key (= Entry) flashes, the control
output indicates the set values.

20
Diagram 112: Heating circuit (with electrothermal mixer), DHW cylinder
Warning!
This diagram is not suitable for 3-point mixer motors!
Required settings:
Basic control level
Time
Operating mode (preferably AUTO)
Set room temperature for lowering mode RTL
Set room temperature for normal operation RTN
Time program for normal operation and burner demand time (program 1-
4), hot water (time program 5)
Parameter menu
Program number PR
min1 … boiler S4 A2, A3 diff1 … boiler S4 – cylinder S5 A2
max1 … cylinder S5 A2
Heat curve TEMP or R RISE
Flow maximum and minimum temperature PREmax, PREmin)
Parameter frost protection mode (OTF, RTF)
Menu Men
MIXER (Room influence etc.) and PUMP (Switch off conditions)
PSC (Pump speed control) setting: AC I3, DVA = PN
if necessary: readjustment of the values PRO, INT and DIF
A3 off A2 off
S4 < min1 S4 < min1
diff1
A3 on A2 on
Switch-off condition S5 > max1
PUMP (if heating active)
A3 off A2 off
A1 = Electro-
thermal mixer