BRV ModvlvS Logico User manual

Heating Controller ModvlvS Logico
Weather-compensated heating circuit controller
Installation and operating instructions
Read carefully before installation, commissioning and operation
1

Content
Safety Instructions 3
EU-Conformity 3
General instructions 3
Explanation of Symbols 3
Changes to the Unit 4
Warranty and Liability 4
Disposal and Pollutants 4
Description ModvlvS Logico 4
About the Controller 4
Specifications 5
Scope of supply 6
Hydraulic Variants 6
Installation 7
Electrical Terminals 7
Wall Installation 8
Electrical Connection 9
Installing the Temperature Sensors 9
Temperature Resistance Table for Pt1000 Sensors 9
Operation 10
Display and Input 10
Commissioning help 11
1. Measurement values 11
2. Statistics 12
Today 12
28 days 12
Operating hours 12
Operating hours 12
Error messages 12
Reset / Clear 12
Heat quantity 12
Graphic overview 12
3. Times 13
Time & Date 13
Heating Circuit (Day) 13
Heating Circuit Comfort 13
DHW enable 13
4. Operating mode 14
Manual 14
5. Settings 14
Heating Circuit (X) 14
Operating mode 14
S/W Day 14
S/W Night 14
Curve 14
Day Correction 15
Night Correction 15
Comfort Temperature Boost 15
Min. Flow 15
Max. Flow 15
Reference/Actual - 15
Reference/Actual + 16
Turn off HC 16
Buffer sensor 16
Mixer 16
Mixer run time 17
Signal type 17
PV contact 17
Mod. Offset 17
Energy Saving Mode 17
Heating Circuit 2 17
Settings Domestic Hot Water (DHW) 17
Operating mode 17
Hot water minimum 17
DHW reference 17
DHW comfort 17
DHW hysteresis 18
Buffer DHW load 18
DHW priority 18
PV contact 18
14-day Reference 18
Burner 18
DHW request 18
Heating Circuit request 18
Delay 18
Eco mode (during solar charge) 18
Mode 18
Burner offset 19
Enable times 19
Anti Legionella 19
Boiler pump 19
Boiler pump 19
Boiler pump Tmin 19
Burner sensor 19
Tmax 19
6. Protective Functions 20
Seizing Protection 20
Frost Protection 20
7. Special Functions 21
Program selection 21
Sensor Calibration 21
Commissioning 21
Factory Settings 21
Eco Display Mode 21
Network 21
Access Control 21
Ethernet 22
CAN bus ID 22
8. Menu Lock 23
9. Service values 23
10. Language 23
Malfunctions/Maintenance 24
Additional Information 25
CAN bus 25
Tips 25
Appendix 26
Pump 26
Profile 26
Output Signal 26
PWM / 0-10V off 26
PWM / 0-10V on 26
PWM / 0-10V max. 26
Speed when „On“ 26
Example for pump settings 26
Technical data PWM and 0-10V 27
Show signal 27
2

Safety Instructions
EU-Conformity
By affixing the CE mark to the unit the manufacturer declares that the ModvlvS Logico conforms to the following relevant safety
regulations:
lEU low voltage directive 2014/35/EU
lEU electromagnetic compatibility directive 2014/30/EU
conforms. Conformity has been verified and the corresponding documentation and the EU declaration of conformity are kept on
file by the manufacturer.
General instructions
Please read carefully!
These installation and operating instructions contain basic instructions and important information regarding safety, installation,
commissioning, maintenance and the optimal use of the unit. Therefore these instructions must be read and understood com-
pletely by the installation technician/specialist and by the system user before installation, commissioning and operation of the
unit.
This unit is an automatic, electrical Weather-controlled heating circuit regulator for heating systems. Install the device only in dry
rooms and under environmental conditions as described under "Technical Data".
The valid accident prevention regulations, VDE regulations, the regulations of the local power utility, the applicable DIN-EN stand-
ards and the installation and operating instruction of the additional system components must also be observed.
Under no circumstances does the unit replace any safety devices to be provided by the customer!
Installation, electrical connection, commissioning and maintenance of the device may only be carried out by an appropriately
trained specialist. Users: Make sure that the specialist gives you detailed information on the function and operation of the unit.
Always keep these instructions in the vicinity of the unit.
The manufacturer does not take over any liability for damage caused through improper usage or non-compliance of this manual!
Explanation of Symbols
Danger
Failure to observe these instructions can result in electrocution.
Danger
Failure to observe these instructions can result in serious damage to health such as scalding or life-threatening
injuries.
Caution
Failure to observe these instructions can result in destruction of the unit or the system, or environmental dam-
age.
Caution
Information which is especially importation for the function and optimal use of the unit and the system.
3

Changes to the Unit
lChanges, additions to or conversion of the unit are not permitted without written permission from the man-
ufacturer.
lIt is likewise forbidden to install additional components that have not been tested together with the unit.
lIf it becomes clear that safe operation of the unit is no longer possible, for example because of damage to the
housing, turn the Unit off immediately.
lAny parts of the unit or accessories that are not in perfect condition must be exchanged immediately.
lUse only original spare parts and accessories from the manufacturer.
lMarkings made on the unit at the factory must not be altered, removed or made illegible.
lOnly the settings described in these instructions may be set using the Unit.
Changes to the unit can compromise the safety and function of the unit or the entire system.
Warranty and Liability
The Unit has been manufactured and tested with regard to high quality and safety requirements. The warranty and liability shall
not include, however, any injury to persons or material damage that is attributable to one or more of the following causes:
lFailure to observe these installation and operating instructions.
lImproper installation, commissioning, maintenance and operation.
lImproperly executed repairs.
lUnauthorized structural changes to the unit.
lUse of the device for other than its intended purpose.
lOperation above or below the limit values listed in the ‚Specifications‘ section.
lForce majeure.
Disposal and Pollutants
The unit conforms to the European RoHS 2011/65/EU for the restriction of the use of certain hazardous substances in electrical
and electronic equipment.
Under no circumstances may the device be disposed of with the normal household waste. Dispose of the unit only at
appropriate collection points or ship it back to the seller or manufacturer.
Description ModvlvS Logico
About the Controller
The Weather-controlled heating circuit regulator for heating systems ModvlvS Logico facilitates efficient use and function control
of your Heating system possible while its handling is intuitive. After every input step the suitable functions are matched to the keys
and explained in a text above. In the menu 'measurement values and settings' are help text and graphics in addition to key words.
The ModvlvS Logico can be used with different variants of installations, see " Hydraulic Variants " on page 6see “hydraulic vari-
ants” on page 1.
Important characteristics of the ModvlvS Logico are:
lDepiction of graphics and texts using a lit display.
lSimple viewing of the current measurement values.
lStatistics and system monitoring by means of statistical graphics
lExtensive setting menus with explanations.
lMenu block can be activated to prevent unintentional setting changes.
lResetting to previously selected values or factory settings.
4

Specifications
Electrical specifications:
Power supply 100 - 240VAC, 50 - 60 Hz
Power consumption / standby 0.5 - 2.5 W/ 0.5
Total switched power 2 A
Switched power per relay 480
Internal fuse 1 2 A slow 250V
Protection category IP40
Protection class / overvoltage category II / II
Inputs/Outputs
Sensor inputs 6 Pt1000 -40 °C ... 300 °C
Sensor inputs VFS / RPS Grundfos Direct Sensor 0°C-100°C (-25°C /120°C short term)
Number room thermostats per cir-
cuit
8 °CALEON /
°CALEON Clima
!Up to 8 ° CALEON / ° CALEON Clima
can be supplied with voltage from the
controller!
Sensor inputs RC20 2 Pt1000
Outputs mechanical relay 4
of relay potential free R4 1
mechanical relay R1 - R4 460VA for AC1 / 460W for AC3
0-10V/PWM output V1 - V2 for 10 k Ω working resistance 1 kHz, level 10 V
+ Terminal/
24V voltage output
+ Max. load by external
devices 24V / 6W
Max. cable length
VFS/RPS sensors <3m
CAN <3m; at >=3m, a shielded twisted-pair cable is to be
used and connected to the protective conductor on one side.
0-10V/PWM <3m
mechanical relay <10m
Interface
Fieldbus CAN
Permissible Ambient Conditions
for controller operation 0 °C - 40 °C, max. 85 % rel. humidity at 25 °C
for transport/storage 0 °C - 60 °C, no moisture condensation permitted
Other Specifications and Dimensions
Housing design 2-part, ABS plastic
Installation methods Wall installation, optionally panel installation
Overall dimensions 163 mm x 110 mm x 52 mm
Aperture installation dimensions 157 mm x 106 mm x 31 mm
Display Fully graphical display, 128 x 64 dots
Light diode multicolour
Real Time Clock RTC with 24 hour power reserve
Operation 4 entry keys
5

Scope of supply
lWeather-controlled heating circuit regulator for heating systems
l3 screws 3,5 x 35 mm and 3 plugs 6 mm for wall installation.
l6 strain relief clips with 12 screws, replacement fuse 2TA
lModvlvS Logico Installation and operating instructions
Optionally contained depending on design/order:
lExternal relay for V1 / V2: 0-10V relay 1W / 6A (77502)
Hydraulic Variants
The following illustrations should be regarded only as schematic representations of the respective hydraulic systems
and do not claim to be complete. Under no circumstances should the controller replace any safety devices. Depend-
ing on the specific application, additional system and safety components such as check valves, non-return valves,
safety temperature limiters, scalding protectors, etc., may be required.
Logico ACS Logico
6

Installation
Electrical Terminals
Low voltage
max. 24 VAC / DC
Mains voltages
230 VAC 50 - 60 Hz
On the control board
VFS1 Grundfos Direct Sensor
VFS2 Grundfos Direct Sensor
CAN CAN bus connection (1=high,2=low)
CAN CAN bus connection (1=high,2=low)
Terminal: Connection for:
- GND bridge on the lower ground terminal block
S1 Temperature Sensor 1
S2 Temperature Sensor 2
S3 Temperature Sensor 3
S4 Temperature Sensor 4
S5 Temperature Sensor 5
V1 0-10V / PWM signal output e.g. for controlling high-
efficiency pumps
V2 0-10V / PWM signal output e.g. for controlling high-
efficiency pumps
S6 Temperature Sensor 6 (outdoor)
+ 24V Power supply
The connection of the ground wire is made at the lower gray ter-
minal block.
Terminal: Connection for:
N Neutral conductor N
L Network outer conductor L
R1 Relays 1
R2 Relays 2
R3 Relays 3
R4| Relay 4 | (potential-free contact)
R4 Relay 4 (potential-free contact)
The neutral conductor N must be connected to the N ter-
minal block.
The PE protective conductor must be connected to the PE
metal terminal block!
For high-efficiency pumps with 0-10V / PWM signal input,
the power can be provided (V1 / V2 parallel operation)
over a free relay.
7

Wall Installation
1. Unscrew cover screw completely.
2. Carefully pull upper part of housing
from lower part. During the removal,
the brackets are released as well.
3. Set upper part of housing aside Do not
touch the electronics.
4. Hold the lower part of the housing up
to the selected position and mark the
three mounting holes. Make sure that
the wall surface is as even as possible
so that the housing does not become
distorted when screwed on.
5. Using a drill and size 6 bit, drill three
holes at the points marked on the wall
and push in the plugs.
6. Insert the upper screw and screw it in
slightly.
7. Fit the upper part of the housing and
insert the other two screws.
8. Align the housing and tighten the three
screws.
1. open terminal cover.
2. Strip lines a max. of 55 mm, assemble
the strain reliefs, strip wire ends 8-9
mm (figure 1)
3. Open clamps with a fitting screwdriver
(figure 2) and connect electrical system
to the controller.
4. Suspend clip room cover again and
close with the screw.
5. Turn on mains supply and operate the
controller.
8

Electrical Connection
Before working on the unit, switch off the power supply and secure it against being switched on again! Check that there
is no power flowing! Electrical connections may only be made by a specialist and in compliance with the applicable
regulations. The unit may not be put into operation if there is visible damage to the housing, e.g. cracks.
The unit may not be accessible from behind.
Low-voltage cables such as temperature sensor cables must be routed separately from mains voltage cables. Feed
temperature sensor cables only into the left-hand side of the unit, and mains voltage cables only into the right-hand
side.
The customer must provide an all-pole disconnecting device, e.g. an emergency heating switch.
The cables being connected to the unit must not be stripped by more than 55 mm, and the cable jacket must reach into
the housing just to the other side of the strain relief.
Installing the Temperature Sensors
The controller operates with Pt1000 temperature sensors which are accurate to 1 °C, ensuring optimal control of system func-
tions.
If desired, the sensor cables can be extended to a maximum of 30 m using a cable with a cross-section of at least
0.75 mm². Ensure there is no contact resistance! Position the sensor precisely in the area to be measured! Only use
immersion, pipe-mounted or flat-mounted sensors suitable for the specific area of application with the appropriate
permissible temperature range.
Low-voltage cables such as temperature sensor cables must be routed separately from mains voltage cables. Feed
temperature sensor cables only into the left-hand side of the unit, and mains voltage cables only into the right-hand
side.
Temperature Resistance Table for Pt1000 Sensors
°C -20 -10 0 10 20 30 40 50 60 70 80 90 100
Ω 922 961 1000 1039 1077 1116 1155 1194 1232 1270 1308 1347 1385
9

Operation
Display and Input
Warning/Error message
New information available
Further symbols can be found in the special
functions
The display‘s (1), extensive text and graphical mode,
enables simple, almost self-explanatory, operation of the con-
troller.
The LED (2) lights up green when a relay is switched on. The
LED (2) lights up red when operating mode ‚Off‘ is set. The
LED (2) flashes quickly red when an error is present.
Entries are made using 4 keys (3+4), to which contextual
functions are assigned. The ‚esc‘ key (3) is used to cancel an
entry or to exit a menu. If applicable, a request for con-
firmation appears to save the made changes.
The function of the other 3 keys (4) is shown in the display
right above the keys. The right-hand key generally has a con-
firmation and selection function.
The graphics mode appears if no key is pressed for 2
minutes or after exiting the main menu with ‘esc’.
The temperature overview appears when you press the.
left button. Tapping the button again leads back to
The graphic overview.
Hitting the "esc" key in the graphics mode takes you directly
to the main menu.
Examples for key settings:
+/- Increase / decrease values
▼/▲ Scroll down / up menu
Yes/No agree / reject
About further information
Back to the previous display
Ok Confirm selection
Confirm Confirm setting
10

Commissioning help
1. Set language and time
2. Commissioning help / setup wizard
a) select or
b) skip.
The setup wizard guides through the necessary basic settings in the cor-
rect order. Each parameter is explained in the control
display. Pressing the „esc“ key takes you back to the previous setting.
b) With free commissioning the settings should be made in the following
order:
lmenu 10. Language
lmenu 3. Time, Date and Operating Times.
lmenu 5. Heating Circuit Settings, all values.
lmenu 6. Protection Functions (if any adjustments neces-
sary).
lmenu 7. Special Functions (if any adjustments neces-
sary).
3. In Menu operating mode “Manual”, test the switch outputs with the con-
sumers connected and check the sensor values for plausibility. Then set
to automatic mode.see " Manual " on page 14
The setup wizard can be accessed in menu 7.2 at any time.
Consider the explanations for the individual parameters on the following pages and check if further settings are
necessary for your application.
1. Measurement values
Serve to display the current measured temperatures.
If ‚error‘ appears on the display instead of the measurement
value, there may be a defective or incorrect temperature sensor.
If the cables are too long or the sensors are not well-placed, small
deviations in the measurement values may occur. In this case, the
display values can be compensated by adjustments in the con-
troller - see ‚Sensor calibration‘. The selected program, con-
nected sensors and the specific model design determine which
measurement values are displayed.
11

2. Statistics
Serve for function control and long-term monitoring of the system.
For system data statistics it is essential for the time to be set
accurately on the controller. Please note that the clock con-
tinues to run for about 24 hours if the mains voltage is inter-
rupted, and afterward must be reset. Improper operation or an
incorrect time may result in data being cleared, recorded incor-
rectly or overwritten. The manufacturer accepts no liability for
the recorded data!
Today
Flow temperature of the last 24 hours
In the graphical overview the characteristics of the flow for the present day is shown from 0 ... 24 h. The right button changes the
unit of time (days) and the two left buttons scroll through the diagram.
28 days
Flow temperature during the last 28 days
In the graphical overview the characteristics of the flow temperature during the last 28 days is shown. The right button changes
the unit of time (days) and the two left buttons scroll through the diagram.
Operating hours
Display of the operating hours of the consumers connected to the controller (for example, solar pumps, valves etc.) whereby dif-
ferent time ranges (day-years) are available!
Operating hours
Here the operating hours of the heating circuit and other switch or signal outputs are displayed. This is the entire time the heating
circuit pump and other switch or signal outputs were active. The displayed date in this menu is the date of the last deletion. From
this date on the current count is added.
Error messages
Display of the last 15 errors in the system with indication of date and time.
Reset / Clear
Resetting and clearing the selected statistics. Selecting ‚all statistics‘ clears everything except the error log.
Heat quantity
Display of the consumed heat quantity form the system in kWh.
Graphic overview
This results in a clear illustration of the data as a bar graph. Different time ranges are available for comparison. You can page
through with the two left keys.
12

3. Times
Settings for time, date and operating times for the heating circuit.
The associated temperature reference values are
specified in Menu 5, ‚Settings‘.
Time & Date
Serve to set the current time and date.
For system data statistics it is essential for the time to be set accurately on the controller. Please note that the clock
continues to run for about 24 hours if the mains voltage is interrupted, and afterward must be reset. Improper oper-
ation or an incorrect time may result in data being cleared, recorded incorrectly or overwritten. The manufacturer
accepts no liability for the recorded data!
Heating Circuit (Day)
This menu is used to select the daytime mode times for the heating circuit; three time periods can be specified for each weekday
and copied to the following days.
Unspecified times are automatically considered to be night-time mode. The set times are only taken into account in the
‚Automatic‘ heating circuit operating mode.
Heating Circuit Comfort
This menu can be used to select three time ranges for each day of the week in which the heating circuit is supplied with an
increased comfort temperature, e.g. for quick heating in the morning.
DHW enable
In this menu, the approval times for the DHW load (sensor S3) are selected, whereby for every weekday 3 periods can be determ-
ined and copied in the following days.
In times that are not filled, the DHW load is automatically shut down by the controller.
13

4. Operating mode
Manual
In ‚Manual‘ mode, the individual relay outputs and the connected consumers can be checked for proper functioning and correct
assignment.
The operating mode ‚Manual‘ may only be used by specialists for brief function tests, e.g. during commissioning! Func-
tion in manual mode: The relays and thus the connected consumers are switched on and off by pressing a key, with no
regard to the current temperatures and set parameters. At the same time, the current measurement values of tem-
perature sensors are also shown in the display for the purposes of function control.
5. Settings
By no means does the controller replace the safety appliances on
site!
Heating Circuit (X)
Operating mode
Heating= Automatic/Normal mode using the set times.
Reference Value = Fixed flow temperature regardless of the outdoor temperature. The desired flow temperature must be set in
Menu 4.3 .
14 days reference value program = For the next 14 days, you can enter the menu 4. temperatures for the next 14 days. After 14
days, the reference temperature of the 14th day is used continuously until the operating mode is changed. Different temperature
values can be set in menu 4.4 for every individual day.
S/W Day
Summer / Winter changeover in daytime mode
If this value is exceeded at the outdoor sensor the controller automatically switches the heating circuit off = Summer mode. If the
outdoor temperature drops below this value, the heating circuit is switched on again = Winter mode.
In addition to the operating times in normal daytime operation, this setting is also valid for times with activated comfort.
S/W Night
Summer/Winter changeover in night-time mode
If this value is exceeded at outdoor sensor S1 during the nighttime mode times, the controller automatically switches the heating
circuit off = Summer mode. If the outdoor temperature drops below this value, the heating circuit is switched on again = Winter
mode.
Curve
Type and slope of the heating characteristic curve
14

The characteristic curve is used to control the heat dissipation of the heating circuit relative to the outdoor temperature. The
demand for heat differs due to factors such as the type of building, heating, insulation and outdoor temperature. For this reason,
the controller can operate with a normal straight curve (setting ‚simple‘) or split curve (setting ‚split‘).
If ‚simple‘ is selected, the curve is adjusted using the graphic diagram. While setting the slope, the controller also shows the slope
value and the calculated target flow temperature at -12 °C as a reference point.
If ‚split‘ is selected, the curve is set in the following steps:
1. Slope over outdoor temperature for change
2. Outdoor temperature for slope change
3. Slope below outdoor temperature for change
While setting the slope, the controller also shows the slope value and the calculated target flow temperature at -12 °C as a ref-
erence point. In case of repeated adjustment of the split curve, the settings appear in reverse order.
The diagram shows the influence of the selected characteristic curve
steepness (standard curve) on the calculated reference flow
temperature of the heating unit. The correct characteristic curve is determ-
ined by defining the intersection point of the maximal calculated flow tem-
perature (=design temperature) at minimal outdoor temperature.
Example: The design temperature of the heater 60 °C flow at lowest out-
door temperature according to calculation of heat requirement
-12 °C. The intersection point renders a slope of 1.2 as the setting.
Day Correction
Parallel characteristic translation
The day correction causes a parallel shift of the heating curve during daytime operating hours, because with certain outdoor tem-
peratures the building might not be optimally heated with the set heating curve. With a non-optimised heating curve, the following
situations frequently occur: hot weather = room too cold/cold weather = room too hot. In this case, the slope of the curve should
be reduced stepwise by 0.2 points and increases the day correction
by 2 ... 4 °C each.
Night Correction
Parallel characteristic translation
The night correction produces a parallel translation of the heating characteristic during the nighttime operating hours. If a neg-
ative value is set for the night correction, the reference flow temperature is lowered accordingly during the nighttime operating
hours. In this manner, primarily at night, but also during the day when no-one is at home, the room temperature is lowered, thus
saving energy. Example: A day correction of +5 °C and a night correction of -2 °C produces a reference flow temperature in night-
time operation that is 7 °C lower.
Comfort Temperature Boost
Parallel characteristic translation
The comfort temperature boost is added to the set day correction. In this manner it is possible to carry out quick heating and/or
raise the temperature of living spaces at a certain time each day.
Min. Flow
The minimum flow temperature is the lower limit of the heating curve, and by this, the reference flow temperature of the heating cir-
cuit. In addition to that, the minimal flow temperature is the reference flow temperature for the frost protection function.
Max. Flow
This value is the upper limit of the reference flow temperature of the heating circuit If however, the temperature of the heating cir-
cuit exceeds the set value, the heat circuit shuts down until the temperature falls below this value. The system purged for 30
seconds every 5 minutes.
The customer must provide an additional limiting thermostat which is connected to the pumps in series (eg underfloor
heating) for safety.
Reference/Actual -
Switch on hysteresis for additional heating
This setting determines the allowed undershoot of the heating circuit temperature below the calculated reference fl ow tem-
perature. If the heating circuit flow temperature and the storage temperature drop below the reference flow temperature by this
value, the additional heating will start the additional heat source after a 1 minute delay.
15

Heat request is started when the flow temperature is continuously below reference temperature for 1 minute.
Reference/Actual +
This value determines the acceptable underflow of the heating circuit temperature beyond the calculated reference flow tem-
perature at the buffer sensor or flow sensor. If the temperature at the buffer sensor exceeds the reference flow temperature by the
value set here, the heating request is deactivated.
The setting value reference/actual + appears only in the menu if a sensor has been set under buffer sensor.
Heat request is started when the flow temperature is continuously below reference temperature for 1 minute.
Turn off HC
Summer: HC turns off when the summer/winter changeover (outside temperature) is exceeded.
Summer + Room: HC is turned off when the summer/winter changeover (outside temperature) or the room setpoint temperatures
are exceeded.
Buffer sensor
Input of heating circuit buffer sensor
In this menu, the sensor is set, which is used as a reference sensor for the heating circuit request.
The request only works if an energy source (burner, compressor, solid chamber) is activated as an additional function
and if this source is set for the heating circuit request
(see also burner: see " Heating Circuit request " on page 18
Room Controller
This value is used to appoint the amount of influence the room temperature has on the reference flow temperature, as a per-
centage. For each degree deviation between room temperature and set point temperature, the percentage set here is added
from the calculated set flow temperature to the set flow temperature or subtracted from it until the min. or max flow values.
Example: Reference room temp.: e.g. 25 °C; room temp.: e.g. 20 °C ±5 °C. Calculated reference temp.: e.g. 40 °C: room con-
troller: 10 %= 4 °C 5 X 4 °C= 20 °C. Accordingly, 20 °C are added to the reference flow temperature, giving 60 °C. If the value is
higher than the one set in max. flow temp, the resulting temperature is the one set in max. flow temp.
Room Reference (Day)
The desired room temperature for day mode. As long as this temperature is not reached, the reference flow temperature is
raised and/or lowered according to the percent setting in ‚room controller‘. If ‚room controller‘ is set to 0 %, this function is deac-
tivated.
Room Reference (Night)
The desired room temperature for night mode. As long as this temperature is not reached, the reference flow temperature is
raised and/or lowered according to the percent setting in ‚room controller‘. If ‚room controller‘ is set to 0 %, this function is deac-
tivated.
In the modes ‚Set point‘ and ‚Set point program, the room controller has no influence.
Thermostat (X)
The room controller is selected here. If no room controller is connected and a room controller is connected via the CAN Bus,
another room controller can be selected here.
The CAN bus ID of controller is shown in Menu 'Special Functions' under 'Network'. In °CALEON see the CAN Bus ID in the
expert menu under Network. Choose the Room Controller with the CAN Bus ID of the corresponding controller.
Sensor Typ
If a sensor input is connected to a room controller, it must be set here whether it is a room temperature sensor (RC20) or a switch-
ing contact.
Mixer
This menu contains all settings relating to the mixer of the heating circuit.
Direction
Direction of the mixing valve can be set here.
Mixer turn time
The mixer is switched on i.e. is opening or closing for the time span set here, then the temperature is measured to control the flow
temperature
16

Mixer off factor
The calculated pause time of the mixer is multiplied with the value set here. If the pause factor is ‚1‘, the normal pause time is
used, ‚0.5‘ will use half the normal pause time. Setting the pause factor to ‚4‘ would quadruple the pause time.
Mixer increase
If the temperature rises very fast, this value is added to the measured flow temperature so that the mixer’s reaction is stronger. If
the measured temperature does not rise any more, the measured value is used again. The measurement occurs once every
minute.
Mixer run time
Mixer-specific setting of the running time required by the mixer for a full ride.
Signal type
The type of device to be controlled is set here.
0-10V: Controlled by a 0-10V signal.
PWM: Control by means of a PWM signal.
PV contact
This sensor input could be used as a PV-contact of PV-System
This sensor is observed to "short circuit" (PV-Contact closed).
If the PV-Contact is closed, the mode of this function is changed to "comfort" and operate
This also applies in the case that the mode "comfort" of the function currently has no time release.
Information about the operation and the connection of PV-contact, refer to the technical description of your PV sys-
tem.
Mod. Offset
At modulated heat request the requested temperature can be increased by the value adjusted here.
Energy Saving Mode
The Energy saving mode switches the heating on when T eco is undershot and heats up to T eco + hysteresis when solar charge
or solid fuel boiler is active.
Heating Circuit 2
see " Heating Circuit (X) " on page 14
No operating mode or mixer function can be set for heating circuit 2
Settings Domestic Hot Water (DHW)
By no means does the controller replace the safety appliances on site!
Operating mode
The DHW heating can be set here. “Auto” activates the DHW heating according to the time program, with “off” the DHW heating is
turned off.
Hot water minimum
Minimum DHW temperature
If the set temperature at the DHW sensor is undeshot outside of the set times, the DHW charge and heat request will be turned
on.
DHW reference
Minimum DHW temperature time program
If the set temperature at the DHW sensor is undershot and the BW charge is approved for the time, the DHW charge and the heat
request will be turned on.
The request only works if an energy source (burner, compressor, solid boiler) is activated as an additioanl function
and if this source is set for the DHW request (see also
Burner: Request BW on page 38,
Compressor: request BW on page 40).
DHW comfort
DHW temperature for comfort time
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The set temperature considered as minimum temperature during the set comfort time. If the temperature on DHW-sensor is below
the value set here is during the DHW comfort periods, the DHW heating is started, until DHW comfort + hysteresis is achieved.
DHW hysteresis
DHW hysteresis
The DHW charge and heat request are shut down if the temperature at the DHW sensor reaches the value set under “see " Hot
water minimum " on page 17“ / “see " DHW reference " on page 17“ plus the heating set here.
Buffer DHW load
DHW load from the buffer
The DHW load from the buffer storage is turned on if the temperature on the buffer sensor is at least 8°C warmer than at the DHW
sensor. The DHW load from the buffer storage is shut down if the temperautre at the buffer sensor is only 4 °C warmer than at the
DHW sensor or if the temperature at the DHW sensor has reached the value set under see " Hot water minimum " on page 17 or
see " DHW reference " on page 17.
DHW priority
Preferred DHW charge
If this function is activated, the reference flow temperature during a BW heating will be set to the minimum flow temperature see "
Min. Flow " on page 15 so that the mixer moves to the “closed” position.
PV contact
This sensor input could be used as a PV-contact of PV-System
This sensor is observed to "short circuit" (PV-Contact closed).
If the PV-Contact is closed, the mode of this function is changed to "comfort" and operate
This also applies in the case that the mode "comfort" of the function currently has no time release.
Information about the operation and the connection of PV-contact, refer to the technical description of your PV sys-
tem.
14-day Reference
If operating mode‚ 14-day reference value‘ is selected see " Operating mode " on page 14, the reference flow temperature for
each of the 14 days can be set here. In Menu 4.4.1, the starting time of the program is shown. To restart the reference program,
press ‚restart‘.
Pressing ‚restart‘ again will reset the 14-day reference program and restart it at Day 1.
Burner
This function requests a burner when a request of a heating circuit or the DHW function is present. Depending on the request, the
burner will turn on in a more economic manner in the Eco-Mode if the solar circulation pump is running.
DHW request
The burner is started for a DHW - heat request.
Heating Circuit request
The burner is started for a heating circuit heat request.
Delay
Switch delay, valid for cooling and heat request. The burner first turns on after this time span if the switch conditions were
reached and are still present. This function should prevent unnecessary switches through temperature changes or create a regen-
erative energy source that adds energy.
Eco mode (during solar charge)
The economy mode for this function can be operated in 2 different variants:
Shutdown: The function is not started with an active solar charge.
Decrease:
For a heating request the function first turns on when the conditions and an additional offset were not met.
For a DHW request the function only activates when T eco is not met and de-activates when T eco + DHW-heating is achieved.
Mode
Switching: Request is made via signal output V2.
Output signal to V1: "no request" = 0V, "request" = 10V
Modulating: Request is made via signal output V2. The ModvlvS Logico outputs the requested temperature (calculated target VL)
as a voltage via the signal output.
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Example: Calculated target VL heating circuit 43 ° C, measured VL at sensor S2 40 ° C.
If the VL sensor exceeds the setpoint VL by 2K (preferece/actual -) for more than 2 minutes, the ModvlvS Logico requests a heat
source with 4.3V (corresponds to 43 ° C setpoint VL).
The requested temperature can be raised with the value "Mod.Offset". 0.1V correspond to 1 ° C. If you set an offset of 0.5V, this
results in a requested temperature of 48 ° C or 4.8V (43 ° C corresponds to 4.3V + 0.5V (offset) = 4.8V corresponds to 48 ° C)
Burner offset
When using the 0-10V outputs V1 or V2 for the burner function, the requested temperature is emitted through a corresponding
voltage. This offset increases the requested temperature.
Enable times
Funktion activity times
Here the desired periods are set in which this function is approved. For each weekday, three times can be specified, furthermore,
you can copy individual day to other days. Outside the set times the function is disabled.
Anti Legionella
With the help of the anti legionella function (hereinafter referred to as: AL), the system can be heated up at selected times in order
to free it of legionella.
In the delivery state, the anti legionella function is switched off.
As soon as it has heated up with “AL” turned on, information with the date will be shown in the display.
This anti legionella function does not offer any secure protection against legionella, because the controller requires an
adequate added amount of energy and the temperatures cannot be monitored in the entire storage area and the con-
nected pipe system.
During the operation of the anti legionella function, if applicable, the storage is heated above the set value “Tmax”,
which may lead to scalding and system damage.
AL Tref
For a successful heating, this temperature has to be reached at the AL sensor(s) for the exposure time period.
AL residence time
For this period of time the AL Tref temperatures at the activated AL-sensors have to be reached for a successful heating.
Last AL heat
This displays when the last successful heating has occurred.
AL sensor 1
On this sensor, the temperature of the AL function is measured.
AL Sensor 2
Optional AL sensor
If this sensor is set for a successful heating Tset AL have to be achieved at this sensor too for the action time.
Boiler pump
A boiler pump is turned on and off together with the burner. Function is only visible if the additional function Burner is activated.
Boiler pump
Activate function.
Boiler pump Tmin
Minimum temperature at the burner sensor for enabling of the boiler pump. If this temperature is exceeded at the burner sensor,
the burner pump is activated.
Burner sensor
Reference sensor for burner function. If this temperature at the set sensor is exceeded, the burner is shut down.
Tmax
Maximum temperature at the burner sensor. If this temperature at the set sensor is exceeded, the burner is shut down.
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6. Protective Functions
The 'Protective functions‘ can be used by specialists to activate and set vari-
ous protective functions.
By no means does the controller replace the safety appliances on
site!
Seizing Protection
If the anti-seizing protection is activated, the controller switches the heat pump and the mixer on/off at 12:00 noon for 5 seconds to
prevent seizing of the pump/valve after long periods of inactivity.
ABS R(X)
Activation (daily, weekly) of the anti-lock protection to a relay (X) at 12:00 for 5 seconds.
Frost Protection
If the temperature at the outside sensor drops below 1 ° C, the frost protection is activated. If the outside temperature rises above
1 ° C, the frost protection function is switched off.
Switching the frost protection function off or setting the minimum flow temperature too low can lead to severe damage
to the system.
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