STIEBEL ELTRON | SOM 8 plus | Operation Instruction | Stiebel Eltron SOM 8 plus Operation Instruction

Stiebel Eltron SOM 8 plus Operation Instruction
Installation
Solar Controller
»» Som 8 plus
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Safety advice
Target group
Please pay attention to the following safety advice
in order to avoid danger and damage to people and
property.
These instructions are exclusively addressed to authorised skilled personnel.
Only qualified electricians should carry out electrical
works.
Initial installation must be effected by qualified personnel named by the manufacturer.
Instructions
Attention must be paid to the valid local standards,
regulations and directives!
Information about the product
Proper usage
The solar controller is designed for use in solar thermal systems and heating systems in compliance
with the technical data specified in this manual.
Improper use excludes all liability claims.
Note
Notes are indicated with an information
symbol.
ÎÎ Arrows indicate instruction steps that should be
carried out.
Disposal
Read this manual carefully to get the best performance from this unit.
Please keep this manual carefully.
• Dispose of the packaging in an environmentally
sound manner.
• Dispose of old appliances in an environmentally sound manner. Upon request we will take
back your old appliances bought from us and
guarantee an environmentally sound disposal of
the devices.
CE-Declaration of conformity
The product complies with the relevant directives and is therefore labelled with the
CE mark. The Declaration of Conformity is
available upon request, please contact us.
Note
Strong electromagnetic fields can impair
the function of the controller.
ÎÎ Make sure the controller as well as the
system are not exposed to strong electromagnetic fields.
Subject to technical change. Errors excepted.
Description of symbols
WARNING!
Warnings are indicated with a
warning triangle!
ÎÎ They contain information
on how to avoid the danger
described.
Signal words describe the danger that may occur,
when it is not avoided.
• WARNING means that injury, possibly life-threatening injury, can occur.
• ATTENTION means that damage to the appliance can occur.
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Contents
1
Overview.........................................................4
1.1Optional functions.......................................................5
2
Installation......................................................5
2.1Mounting........................................................................5
2.2Electrical connection..................................................6
2.3 Data communication / Bus.......................................7
2.4SD card slot.....................................................................8
3
Step-by-step parameterisation.....................8
4
Operation and function.................................9
4.1 Buttons.............................................................................9
4.2Selecting menu points and adjusting values ...9
4.3Menu structure..........................................................11
5
Initial commissioning.................................. 12
5.1 Basic systems and hydraulic variants.................14
5.2Overview of relay and sensor allocation..........15
6
Main menu................................................... 30
7
Status............................................................ 30
7.1Solar...............................................................................30
7.2Arrangement..............................................................30
7.3 Heating.........................................................................30
7.4Messages......................................................................30
7.5Meas. / Balance values.............................................31
7.6Service...........................................................................31
8
Solar............................................................. 31
8.1 Basic solar settings...................................................31
8.2Solar optional functions.........................................34
8.3Solar expert menu....................................................47
9
Arrangement............................................... 47
9.1Optional functions....................................................47
10 Heating......................................................... 59
10.1 Demands......................................................................60
10.2 Heating circuits..........................................................60
10.3Optional functions....................................................64
11 HQM.............................................................. 67
12 Basic settings............................................... 69
13 SD card......................................................... 69
14 Manual mode............................................... 71
15 User code...................................................... 72
16 In- / Outputs................................................. 72
16.1Modules........................................................................72
16.2 Inputs............................................................................73
16.3Outputs.........................................................................74
16.4PWM-Profiles..............................................................75
17 Troubleshooting.......................................... 76
18 Accessories................................................... 80
18.1Sensors and measuring instruments.................80
19 Index............................................................. 81
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1
Overview
Technical data
• Extra large graphic display
• 14 relay outputs
• 12 temperature sensors
(system-dependent)
• 4 inputs for Grundfos Direct Sensors™
(2 × analog, 2 × digital)
• 4 PWM outputs for speed control of highefficiency pumps
• Datalogging / firmware updates via SD memory card
• 2 internal, weather-compensated heating
circuits
• Pre-programmed optional functions
• Drainback option
• Time-controlled thermostat function
• Heating period thermal disinfection
• VBus®
• Energy-saving switch-mode power supply
47
254
Ambient temperature
°C
205
Included:
1 x solar control unit
1 x accessory bag
3 x screw and wall plug
13 x strain relief and screw
Additionally enclosed in the full kit:
2 x FKP6 temperature sensor
4 x FRP6 temperature sensor
Height
mm
Width
mm
Depth
mm
IP-Rating
Rated voltage
V
Phases
Frequency
Hz
Total switching current
A
Power consumption
W
Relay capacity
A
Number of inputs
Number of switched outputs
Casing material
SOM 8 plus
230933
200
253
43
IP20
100...240
1/N/PE
50...60
6,3
<1
1 (1)
15
14
Plastic,
PC-ABS/PMMA
0...40
Note
The SD card is not included with the controller. For more information about accessories, see page 69
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1.1
Optional functions
Solar
Bypass
CS Bypass
External heat exchanger
Tube collector
Target temperature
Antifreeze
Afterheating suppression
Parallel relay
Cooling mode
Drainback
Twin pump
Heat dump
Flow rate monitoring
Arrangement
Parallel relay
Mixer
Boiler loading
Error relay
Heat exchange
Solid fuel boiler
2
Installation
2.1
Mounting
The unit must only be located in dry interior rooms.
The controller must additionally be supplied from a
double pole switch with contact gap of at least 3 mm
[0.12"].
Please pay attention to separate routing of sensor
cables and mains cables.
In order to mount the device to the wall, carry out
the following steps:
screw
ÎÎ Unscrew the cross-head screw from the cover
and remove it along with the cover from the
housing
ÎÎ Mark the upper fastening point on the wall. Drill
and fasten the enclosed wall plug and screw leaving the head protruding
ÎÎ Hang the housing from the upper fastening
point and mark the lower fastening points (centres 223 mm [8.8"])
ÎÎ Insert lower wall plugs
ÎÎ Fasten the housing to the wall with the lower
fastening screws and tighten
ÎÎ Carry out the electrical wiring in accordance
with the terminal allocation, see chap. 2.2
ÎÎ Put the cover on the housing
ÎÎ Attach with the fastening screw
cover
upper fastening point
Circulation
Return preheating
lower fastening point
Function block
Irradiation switch
Heating
Thermal Disinfection
DHW heating
Note
Strong electromagnetic fields can impair
the function of the controller.
Make sure the controller as well as the system are not exposed to strong electromagnetic fields.
WARNING!
Electric shock!
Upon opening the housing, live
parts are exposed.
ÎÎ Always disconnect the
controller from power supply
before opening the housing!
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2.2
Electrical connection
Note
Connecting the device to the power supply
must always be the last step of the installation!
WARNING!
The controller is equipped with 14 relays in total to
which loads such as pumps, valves, etc. can be connected:
Relays 1 ... 13 are semiconductor relays, designed for
pump speed control:
Conductor R1 ... R13
Neutral conductor N (common terminal block)
Protective earth conductor (common terminal
block)
Relay 14 is a potential-free changeover relay:
R14-A = normally open contact
R14-M = centre contact
R14-R = normally closed contact
WARNING!
ESD damage!
Electrostatic discharge can lead to
damage to electronic components!
ÎÎ Take care to discharge
properly before touching the
inside of the device! To do
so, touch a grounded surface
such as a radiator or tap!
Note:
The pump speed must be set to 100 %
when auxiliary relays or valves are connected.
Electric shock!
Upon opening the housing, live
parts are exposed.
ÎÎ Always disconnect the
controller from power supply
before opening the housing!
Note
For more details about the initial commissioning procedure, see page 12.
Depending on the product version, mains cables
and sensor cables are already connected to the device. If that is not the case, please proceed as follows:
Temperature sensors have to be connected to the
terminals S1 ... S12 and GND (either polarity).
sensor terminals
input for analog
Grundfos Direct
Sensors™
PWM (0-10 V)
terminals
VBus®
sensor
ground common terminal block
potential-free
changeover relay
input for digital
Grundfos Direct Sensors™
neutral conductor
common terminal
block
protective earth
conductor common
terminal block (PE)
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2.3
The terminals S13 to S15 can be used as impulse inputs for V40 flowmeters or as inputs for FS08 flow
switches.
V40 flowmeters can be connected to the terminals
S13 / V40 to S15 / V40 and GND (either polarity).
Connect the irradiation sensor CS10 to the terminals CS10 and GND with correct polarity. To do so,
connect the cable marked GND to the GND common
terminal block, the cable marked CS to the terminal
marked CS10.
The terminals marked PWM are control outputs for
high-efficiency pumps.
In the In-/Outputs menu, relays can be allocated to
the PWM outputs.
Connect the FlowRotor to the input marked FlowRotor.
Connect the analog Grundfos Direct Sensors™ to
the inputs GDSA1 and GDSA2.
Connect the digital Grundfos Direct Sensors™ to
the GDSD1 and GDSD2 inputs.
The controller is supplied with power via a mains
cable. The power supply of the device must be
100 ... 240 V~ (50 ... 60Hz).
The mains connection is at the terminals:
Neutral conductor N Conductor L
Conductor L' (L' is not connected with the mains
cable. L' is a fused contact permanently carrying
voltage)
Protectiv earth conductor (common terminal
block)
Data communication / Bus
The controller is equipped with the VBus® for data
transfer with and energy supply to external modules. The connection is carried out at the two terminals marked VBus and GND (any polarity).
Note:
For more information about accessories,
see page 80.
WARNING!
Electric shock!
L‘ is a fused contact permanently
carrying voltage
ÎÎ Always disconnect the
controller from power supply
before opening the housing!
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2.4
SD card slot
The controller is equipped
with an SD card slot.
With an SD card, the following
functions can be carried out:
• Store measurement and
balance values onto the SD
card. After the transfer to a
computer, the values can
be opened and visualised, e. g. in a spreadsheet
programme.
• Prepare adjustments and parameterisations on a
computer and transfer them via the SD card.
• Store adjustments and parameterisations on the
SD card and, if necessary, retrieve them from
there.
A standard SD card is not included.
For more information about using an SD card, see
page 69.
3
Step-by-step parameterisation
The SOM 8 plus is a controller that offers a broad
variety of functions to the user. At the same time,
the user has a lot of freedom in configurating them.
Therefore, to set up a complex system, careful planning is required. We recommend drawing a sketch of
the system first.
If planning, hydraulic execution and electrical connection have all been carried out successfully, proceed as follows:
1. Running the commissioning menu
The commissioning menu is run after the first connection and after every reset. It will request the following basic adjustments:
• Menu language
• Temperature unit
• Volume unit
• Pressure unit
• Energy unit
• Time
• Date
• Solar system
• Hydraulic variant
At the end of the commissioning menu, a safety enquiry follows. If the safety enquiry is confirmed, the
adjustments are saved.
For further information about the commissioning
menu see page 12.
2. Registering sensors
If flowmeters, flow switches, Grundfos Direct Sensors™ and/or external extension modules are connected, these have to be registered in the In-/Outputs menu.
For further information about the registration of modules and sensors see page 72.
4. Activating optional arrangement functions
Now, optional functions for the non-solar part of the
arrangement can be selected, activated and adjusted.
Free relays can be allocated to optional functions
which require a relay. The controller always suggests
the numerically smallest free relay.
Sensors can be allocated any number of times without impairing any other functions.
For further information about the optional arrangement functions see page 47.
5. Adjusting heating circuits and activating optional heating functions
Now, heating circuits can be activated and adjusted.
Internal heating circuits are only offered as long as at
least 3 relays are free.
For the heating part of the arrangement, optional
functions can be selected, activated and adjusted.
To heating circuits and optional functions which require one or more relays, the corresponding number
of free relays can be allocated. The controller always
suggests the numerically smallest free relay.
Sensors can be allocated any number of times without impairing any other functions.
For further information about heating circuits and
optional heating functions see page 59.
3. Activating solar optional functions
The basic solar system has been adjusted during
commissioning. Now, optional functions can be selected, activated and adjusted.
Free relays can be allocated to optional functions
which require a relay. The controller always suggests
the numerically smallest free relay.
Sensors can be allocated to more than one function.
For further information about the solar optional
functions see page 34.
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4
Operation and function
4.1
Buttons
4.2
The controller is energised via the 7 buttons next to
the display.They have the following functions:
Button 1 - scrolling upwards
Button
3
- scrolling downwards
Button
- increasing adjustment values
Button 4
- reducing adjustment values
Button
5
- confirming
Button
6
- entering the status menu / chimney
sweeper mode (system-dependent)
Button
7
- escape button for changing into the
previous menu
1
7
4
5
6
Selecting menu points and adjusting
values
During normal operation of the controller, the display is in the main menu. If no button is pressed for a
few seconds, the display illumination goes out.
Press any key to reactivate the display illumination.
ÎÎ In order to scroll through a menu or to adjust
a value, press either buttons 1 and 3 or buttons
and 4
ÎÎ To open a submenu or to confirm a value, press
button 5
If the symbol + is shown in front of a menu item,
pressing button 5 will open a new submenu. If it is
already opened, a – is shown instead of the + .
ÎÎ To enter the status menu, press button 6 – unconfirmed adjustments will not be saved
ÎÎ To switch one menu level upwards press
button 7 – unconfirmed adjustments will not
be saved
If no button has been pressed within a couple of minutes, the adjustment is cancelled and the previous
value is retained.
2
3
If the symbol » is shown behind a menu item, pressing button 5 will open a new submenu.
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adjustment channel
adjusted value
(not yet confirmed)
active area
minimum value
current value saved
maximum value
Values and adjustments can be changed in different
ways:
Numeric values can be adjusted by means of a slide
bar. The minimum value is indicated to the left, the
maximum value to the right. The large number above the slide bar indicates the current adjustment. By
pressing buttons
or 4 the upper slide bar can
be moved to the left or to the right.
Only after the adjustment has been confirmed by
pressing button 5 will the number below the slide bar indicate the new value. The new value will be
saved if it is confirmed by pressing button 5 again.
inactive area
When two values are locked against each other, they
will display a reduced adjustment range depending
on the adjustment of the respective other value.
In this case, the active area of the slide bar is shortened, the inactive area is indicated as a dotted line.
The indication of the minimum and maximum values will adapt to the reduction.
If only one item of several can be selected, they will
be indicated with "radio buttons". When one item
has been selected, the radio button in front of it is
filled.
If more than one item of several can be selected, they
will be indicated with checkboxes. When an item has
been selected, an x appears inside the checkbox.
The time frames for the timer can be adjusted in
steps of 15 minutes on a time line.
The cursor can be moved along the time line by
pressing buttons
or 4 . The beginning of a
time frame can be determined by pressing button
1 .
The end of a time frame can be determined by pressing button 3 .
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4.3
Menu structure
Main menu
Status
Arrangement
Solar
Basic settings
Heating
Optional functions
Basic settings
System
HQM
Expert
Collector
Solar
Store
Basic settings
Loading logic
SD card
Manual mode
User code
Arrangement
Optional functions
In- / Outputs
Expert
The menu items and adjustment values selectable are variable depending on adjustments
already made. The figure only shows an exemplary excerpt of the complete menu in order to
visualise the menu structure.
Optional functions
Parallel relay
Heating
Demands
Mixer
Parallel relay
Relay
Store loading
Reference relay
Heating circuits
Error relay
Overrun
Optional functions
...
Delay
Inverted
Basic settings
Language
...
Auto DST
Date
Time
Temp. unit
Vol. unit
...
In- / Outputs
Modules
Inputs
Outputs
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5
Initial commissioning
When the hydraulic system is filled and ready for
operation, connect the controller to the mains.
The controller runs an initialisation phase in which
the directional pad flashes red.
When the controller is commissioned for the first
time or when it is reset, it will run a commissioning
menu after the initialisation phase. The commissioning menu leads the user through the most important adjustment channels needed for operating the
system.
Commissioning menu
The commissioning menu consists of the channels
described in the following. In order to make an adjustment, push button 5 . Adjust the value by pressing buttons 4 and 2 , then bush button 5 to
confirm. The next channel will appear on the display.
1. Language:
ÎÎ Adjust the desired menu language.
2. Units:
ÎÎ Adjust the desired temperature unit.
ÎÎ Adjust the desired volume unit.
button navigation
5
adjustment mode
ÎÎ Adjust the desired pressure unit.
2 changing a value
4
5
confirming a value
ÎÎ Adjust the desired energy unit.
next parameter appears automatically
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3. Daylight savings time adjustment:
ÎÎ Activate or deactivate the automatical daylight
savings time adjustment.
4. Time:
ÎÎ Adjust the clock time. First of all adjust the
hours, then the minutes.
5. Date:
ÎÎ Adjust the date. First of all adjust the year, then
the month and then the day.
7. Completing the commissioning menu:
After the system has been selected, a security enquiry appears. If the enquiry is confirmed, the adjustments will be saved.
ÎÎ In order to confirm the security enquiry, press
button 5 .
ÎÎ In order to reenter the commissioning menu
channels, press button 7 .
If the security enquiry has been confirmed, the controller is ready for operation and should enable an
optimum system operation.
All adjustments made during commissioning can, if
necessary, be changed later on in the basic settings
menu.
6. Selection of the solar system:
ÎÎ Adjust the desired solar system (number of collectors and stores, hydraulic variants).
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5.1
Basic systems and hydraulic variants
System
The controller is preprogrammed for 9 basic systems.
The selection depends on the number of heat sources (collector fields) and heat sinks (stores, pool).
Factory setting is system 1.
System 0:
System 1:
System 2:
System 3:
System 4:
System 5:
System 6:
System 7:
System 8:
System 9:
no solar system
1 collector field
east- / west collectors
1 collector field
east- / west collectors
1 collector field
east- / west collectors
1 collector field
east- / west collectors
1 collector field
-
1 store
1 store
2 stores
2 stores
3 stores
3 stores
4 stores
4 stores
5 stores
The selection of the basic solar system is one of the
most important adjustments and is thus requested
already in the commissioning menu.
First, the basic system is adjusted by means of the
number of stores and collectors fields, then the hydraulic variant.
The selected system is visualised by the corresponding number of store and collector symbols. The figure to the left shows system 6 which consists of 3
stores and 2 collector fields ("east- / west collectors").
Variant
The hydraulic variant refers to the different actuators
that are to be controlled. They are visualised on the
display by means of symbols, when the variant is
selected. The upper symbol indicates the actuator
belonging to the collector fields, the lower one the
actuators belonging to the stores.
The exemplary figure shows the display indicated
when system 6, variant 2 has been selected. In this
case, each collector field has a 2-port valve, the
stores are loaded by means of pump logic.
For each variant, the controller allocates the corresponding relays and sensors. The allocations of the
most important combinations are shown in 5.2.
A solar system with store loading in layers is implemented as a 2-store system
(store top = store 1; store bottom = store 2).
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5.2
Overview of relay and sensor allocation
S1
System 1
R1
S2
Relay / sensor allocation
1
2
3
4
5
6
7
8
9
10-14
Relay
Solar pump
Opt. function
Opt. function
Opt. function
Opt. function
Opt. function
Opt. function
Opt. function
Opt. function
Opt. function
Sensor
Collector 1
Store base
Free
Free
Free
Free
Free
Free
Free
Free
System 2 variant 1
S1
R1
S6
R2
S2
Relay / sensor allocation
1
2
3
4
5
6
7
8
9
10-14
Relay
Pump coll. 1
Pump coll. 2
Opt. function
Opt. function
Opt. function
Opt. function
Opt. function
Opt. function
Opt. function
Opt. function
Sensor
Collector 1
Store base
Free
Free
Free
Collector 2
Free
Free
Free
Free
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System 2 variant 2
S1
R1
S6
R2
R3
S2
Relay / sensor allocation
1
2
3
4
5
6
7
8
9
10-14
Relay
2PV coll. 1
2PV coll. 2
Solar pump
Opt. function
Opt. function
Opt. function
Opt. function
Opt. function
Opt. function
Opt. function
Sensor
Collector 1
Store base
Free
Free
Free
Collector 2
Free
Free
Free
Free
S1
System 3 variant 1
R2
R1
S2
S4
Relay / sensor allocation
1
Relay
Solar pump
Sensor
Collector
2
3PV
store 2
3
Optional
function
4
Optional
function
5
Optional
function
6
Optional
function
7
Optional
function
8
Optional
function
9
Optional
function
10-14
Optional
function
Store 1 base
Free
Store 2 base
Free
Free
Free
Free
Free
Free
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System 3 variant 2
S1
S2
R1
S4
R2
Relay / sensor allocation
1
2
3
4
5
6
7
8
9
10-14
Relay
Solar pump
store 1
Solar pump
store 2
Optional
function
Optional
function
Optional
function
Optional
function
Optional
function
Optional
function
Optional
function
Optional
function
Sensor
Collector
Store 1 base
Free
Store 2 base
Free
Free
Free
Free
Free
Free
S1
System 3 variant 3
R1
S2
R3
R2
S4
Relay / sensor allocation
1
Relay
Solar pump
Sensor
Collector
2
2PV
store 1
3
2PV
store 2
4
Optional
function
5
Optional
function
6
Optional
function
7
Optional
function
8
Optional
function
9
Optional
function
10-14
Optional
function
Store 1 base
Free
Store 2 base
Free
Free
Free
Free
Free
Free
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System 4 variant 1
S1 S6
R1
R2
R3
S2
S4
Relay / sensor allocation
1
2
Relay
Pump coll. 1
Pump coll. 2
Sensor
Collector 1
Store 1 base
System 4 variant 2
3
3PV
store 2
4
Optional
function
5
Optional
function
6
Optional
function
7
Optional
function
8
Optional
function
9
Optional
function
10-14
Optional
function
Free
Store 2 base
Free
Collector 2
Free
Free
Free
Free
S1 S6
R1
R2
S2
R3
S4
R4
Relay / sensor allocation
1
2
Relay
Pump coll. 1
Pump coll. 2
Sensor
Collector 1
Store 1 base
3
2PV
store 1
4
2PV
store 2
5
Optional
function
6
Optional
function
7
Optional
function
8
Optional
function
9
Optional
function
10-14
Optional
function
Free
Store 2 base
Free
Collector 2
Free
Free
Free
Free
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System 4 variant 3
S1 S6
R1
R2
R3
S2
S4
R4
Relay / sensor allocation
1
2
Relay
2PV coll. 1
2PV coll. 2
Sensor
Collector 1
Store 1 base
System 4 variant 4
3
Solar pump
store 1
4
Solar pump
store 2
5
Optional
function
6
Optional
function
7
Optional
function
8
Optional
function
9
Optional
function
10-14
Optional
function
Free
Store 2 base
Free
Collector 2
Free
Free
Free
Free
4
3PV
store 1
5
Optional
function
6
Optional
function
7
Optional
function
8
Optional
function
9
Optional
function
10-14
Optional
function
Store 2 base
Free
Collector 2
Free
Free
Free
Free
S1 S6
R1
R2
R3
R4
S2
S4
Relay / sensor allocation
1
2
3
Relay
2PV coll. 1
2PV coll. 1
Solar pump
Sensor
Collector 1
Store 1 base
Free
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System 5 variant 1
S1
R1
S2
R2
Relay / sensor allocation
1
Relay
Solar pump
Sensor
Collector 1
S4
R3
S5
R4
2
2PV
store 1
3
2PV
store 2
4
2PV
store 3
5
Optional
function
6
Optional
function
7
Optional
function
8
Optional
function
9
Optional
function
10-14
Optional
function
Store 1 base
Free
Store 2 base
Store 3 base
Free
Free
Free
Free
Free
System 5 variant 2
S1
S2
R1
R2
S4
S5
R3
Relay / sensor allocation
Relay
Sensor
1
Solar pump
store 1
2
Solar pump
store 2
3
Solar pump
store 3
4
Optional
function
5
Optional
function
6
Optional
function
7
Optional
function
8
Optional
function
9
Optional
function
10-14
Optional
function
Collector 1
Store 1 base
Free
Store 2 base
Store 3 base
Free
Free
Free
Free
Free
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S1
System 5 variant 3
R3
R2
R1
S2
S4
S5
Relay / sensor allocation
1
Relay
Solar pump
Sensor
Collector 1
2
3PV
store 1
3
3PV
store 2
4
Optional
function
5
Optional
function
6
Optional
function
7
Optional
function
8
Optional
function
9
Optional
function
10-14
Optional
function
Store 1 base
Free
Store 2 base
Store 3 base
Free
Free
Free
Free
Free
6
Optional
function
7
Optional
function
8
Optional
function
9
Optional
function
10-14
Optional
function
Collector 2
Free
Free
Free
Free
S1 S6
System 6 variant 1
R1
R2
S2
R3
R4
S4
S5
R5
Relay / sensor allocation
1
2
3
4
5
Relay
Pump coll. 1
Pump coll. 2
2PV store 1
2PV store 2
2PV store 3
Sensor
Collector 1
Store 1 base
Free
Store 2 base
Store 3 base
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System 6 variant 2
S1
S6
R4
R5
S2
R1
R2
S4
S5
R3
Relay / sensor allocation
Relay
Sensor
1
Solar pump
store 1
2
Solar pump
store 2
3
Solar pump
store 3
Collector 1
Store 1 base
Free
4
5
2PV coll. 1
2PV coll. 2
Store 2 base
Store 3 base
6
Optional
function
7
Optional
function
8
Optional
function
9
Optional
function
10-14
Optional
function
Collector 2
Free
Free
Free
Free
S1 S6
System 6 variant 3
R1
R2
R3
S2
R4
R5
S4
S5
R6
Relay / sensor allocation
1
2
3
Relay
2PV coll. 1
2PV coll. 2
Solar pump
Sensor
Collector 1
Store 1 base
Free
4
2PV
store 1
5
2PV
store 2
6
2PV
store 3
7
Optional
function
8
Optional
function
9
Optional
function
10-14
Optional
function
Store 2 base
Store 3 base
Collector 2
Free
Free
Free
Free
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System 6 variant 4
S1 S6
R2
R1
R3
R4
S2
S4
S5
Relay / sensor allocation
1
2
3
4
Relay
Pump coll. 1
Pump coll. 2
3PV store 1
3PV store 2
Sensor
Collector 1
Store 1 base
Free
Store 2 base
System 6 variant 5
S1
5
Optional
function
6
Optional
function
7
Optional
function
8
Optional
function
9
Optional
function
10-14
Optional
function
Store 3 base
Collector 2
Free
Free
Free
Free
S6
R1
R2
R4
R3
R5
S2
S4
S5
Relay / sensor allocation
1
2
3
Relay
2PV coll. 1
2PV coll. 2
Solar pump
Sensor
Collector 1
Store 1 base
Free
4
3PV
Store 1
5
3PV
Store 2
6
Optional
function
7
Optional
function
8
Optional
function
9
Optional
function
10-14
Optional
function
Store 2 base
Store 3 base
Collector 2
Free
Free
Free
Free
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System 7 variant 1
S1
R1
S2
R2
S4
R3
S5
R4
S6
R5
Relay / sensor allocation
1
Relay
Solar pump
Sensor
Collector 1
2
2PV
store 1
3
2PV
store 2
4
2PV
store 3
5
2PV
store 4
6
Optional
function
7
Optional
function
8
Optional
function
9
Optional
function
10-14
Optional
function
Store 1 base
Free
Store 2 base
Store 3 base
Store 4 base
Free
Free
Free
Free
S1
System 7 variant 2
R2
R3
R4
R1
S2
S4
S5
S6
Relay / sensor allocation
1
Relay
Solar pump
Sensor
Collector 1
2
3PV
store 1
3
3PV
store 2
4
3PV
store 3
5
Optional
function
6
Optional
function
7
Optional
function
8
Optional
function
9
Optional
function
10-14
Optional
function
Store 1 base
Free
Store 2 base
Store 3 base
Store 4 base
Free
Free
Free
Free
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System 7 variant 3
S1
S2
R1
S4
R2
S5
R3
R4
S6
Relay / sensor allocation
Relay
Sensor
1
Solar pump
store 1
2
Solar pump
store 2
3
Solar pump
store 3
4
Solar pump
store 4
5
Optional
function
6
Optional
function
7
Optional
function
8
Optional
function
9
Optional
function
10-14
Optional
function
Collector 1
Store 1 base
Free
Store 2 base
Store 3 base
Store 4 base
Free
Free
Free
Free
System 8 variant 1
S1
S6
R1
R2
R3
S2
S4
S5
R4
R5
R6
S7
Relay / sensor allocation
1
2
Relay
Pump coll. 1
Pump coll. 2
Sensor
Collector 1
Store 1 base
3
2PV
store 1
4
2PV
store 2
5
2PV
store 3
6
2PV
store 4
7
Optional
function
8
Optional
function
9
Optional
function
10-14
Optional
function
Free
Store 2 base
Store 3 base
Collector 2
Store 4 base
Free
Free
Free
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System 8 variant 2
S1
S6
R2
R1
R5
R4
R3
S2
S4
S5
S7
Relay / sensor allocation
1
2
Relay
Pump coll. 1
Pump coll. 2
Sensor
Collector 1
Store 1 base
System 8 variant 3
S1
3
3PV
store 1
4
3PV
store 2
5
3PV
store 3
6
Optional
function
7
Optional
function
8
Optional
function
9
Optional
function
10-14
Optional
function
Free
Store 2 base
Store 3 base
Collector 2
Store 4 base
Free
Free
Free
5
6
2PV coll. 1
2PV coll. 2
7
Optional
function
8
Optional
function
9
Optional
function
10-14
Optional
function
Store 3 base
Collector 2
Store 4 base
Free
Free
Free
S6
R5
R6
R1
S2
S4
S5
R2
R3
R4
S7
Relay / sensor allocation
Relay
Sensor
1
Solar pump
store 1
2
Solar pump
store 2
3
Solar pump
store 3
4
Solar pump
store 4
Collector 1
Store 1 base
Free
Store 2 base
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System 8 variant 4
S1
S6
R1
R2
R3
S2
S4
S5
R6
R5
R4
S7
R7
Relay / sensor allocation
1
2
3
Relay
2PV coll. 1
2PV coll. 2
Solar pump
Sensor
Collector 1
Store 1 base
Free
System 8 variant 5
S1
4
2PV
store 1
5
2PV
store 2
6
2PV
store 3
7
2PV
store 4
8
Optional
function
9
Optional
function
10-14
Optional
function
Store 2 base
Store 3 base
Collector 2
Store 4 base
Free
Free
Free
S6
R2
R1
R6
R5
R4
R3
S2
S4
S5
S7
Relay / sensor allocation
1
2
3
Relay
2PV coll. 1
2PV coll. 2
Solar pump
Sensor
Collector 1
Store 1 base
Free
4
3PV
store 1
5
3PV
store 2
6
3PV
store 3
7
Optional
function
8
Optional
function
9
Optional
function
10-14
Optional
function
Store 2 base
Store 3 base
Collector 2
Store 4 base
Free
Free
Free
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System 9 variant 1
S1
R1
S2
R2
S4
R3
S5
R4
S6
R5
S7
R6
Relay / sensor allocation
1
Relay
Solar pump
Sensor
Collector 1
2
2PV
store 1
3
2PV
store 2
4
2PV
store 3
5
2PV
store 4
6
2PV
store 5
7
Optional
function
8
Optional
function
9
Optional
function
10-14
Optional
function
Store 1 base
Free
Store 2 base
Store 3 base
Store 4 base
Store 5 base
Free
Free
Free
System 9 variant 2
S1
R5
R4
R3
R2
R1
S2
S4
S5
S6
S7
Relay / sensor allocation
1
Relay
Solar pump
Sensor
Collector 1
2
3PV
store 1
3
3PV
store 2
4
3PV
store 3
5
3PV
store 4
6
Optional
function
7
Optional
function
8
Optional
function
9
Optional
function
10-14
Optional
function
Store 1 base
Free
Store 2 base
Store 3 base
Store 4 base
Store 5 base
Free
Free
Free
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System 9 variant 3
S1
R1
S2
S4
S5
S6
R2
R3
R4
R5
S7
Relay / sensor allocation
Relay
Sensor
1
Solar pump
store 1
2
Solar pump
store 2
3
Solar pump
store 3
4
Solar pump
store 4
5
Solar pump
store 5
6
Optional
function
7
Optional
function
8
Optional
function
9
Optional
function
10-14
Optional
function
Collector 1
Store 1 base
Free
Store 2 base
Store 3 base
Store 4 base
Store 5 base
Free
Free
Free
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6
Main menu
During normal operation, the display of the controller shows the main menu. From here, the different
menu areas can be selected.
The following menus are available:
• Status
• Solar
• Arrangement
• Heating
• HQM
• Basic settings
• SD card
• Manual mode
• User code
• In- / Outputs
• Expert
ÎÎ Select the menu area by pressing buttons 1 and
7
Status
In the Status menu, the status messages for every
menu area can be found.
7.1
Solar
In the Status / Solar menu, the status of the solar
system, the solar loading and the selected optional
functions are indicated.
7.2
Arrangement
3
ÎÎ Press button
menu
5
in order to enter the selected
Note
When no button is pressed for 1 minute,
the display illumination stops. After 3 more
minutes, the controller switches into the
Status menu.
ÎÎ In order to access the main menu, press
button 7 !
In the Status / Arrangement menu, the status of the
selected optional functions is indicated.
7.3
Heating
In the Status / Heating menu, the status of the demands and heating circuits activated as well as of
the selected optional functions is indicated.
7.4
Messages
In the Status / Messages menu, error and warning
messages which have not been acknowledged are indicated. During normal operation, the message Everything OK is indicated.
A line break or short circuit in a sensor line is indicated
as !Sensor fault. A precise error code can be found in
the Status / Meas.- / Balance values menu.
If the optional function Flow rate monitoring is activated and has detected an error, the message !Flow r.
monit. is indicated.
All messages will additionally be displayed in the corresponding menus. In order to acknowledge an error
message, the corresponding menu has to be entered.
If, for example, the message !Flow r. monit. appears,
it will also be displayed in the Solar / Optional functions / Flow rate monitoring. In that menu, the message can be acknowledged.
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7.5
8
Meas. / Balance values
Solar
If, for example, S1 is selected, a submenu indicating
the minimum and maximum values will open.
When the item Chart is selected, a progression chart
appears.
In the Status / Meas. / Balance values menu, all current measurement values as well as a range of balance values are displayed. Some of the menu items can
be selected in order to enter a submenu.
Additionally, all optional functions selected, the
operating hours counter as well as activated heat
quantity measurements are displayed.
The progression chart shows the development of
the temperature at the corresponding sensor over
the last 24 hours. Press buttons
and 4 to
switch back and forth between a chart of the current
day and one of the day before.
7.6
If, for example, Solar / System is selected, a submenu with the sensors and relays allocated to the solar
system opens. In the submenu, the current temperatures and the current pump speed are displayed.
When a line with a measurement value is selected,
another submenu will open.
Service
In the Status / Service menu, each sensor and relay
is indicated with the component or function it has
been allocated to. For free sensors and relays, Free
is indicated.
In this menu, all adjustments for the solar part of the
arrangement can be made. The Solar menu consists
of the following submenus:
• Basic settings
• Optional functions
• Expert
8.1
Basic solar settings
In the Basic settings menu, all basic settings for the
solar part of the arrangement can be adjusted.
In this menu, the hydraulic system, which is the basis
for the arrangement, can be adjusted. The setting is
divided into systems and variants.
Both system and variant have usually been adjusted
during commissioning. If the setting is changed later
on, all adjustments for the new solar part of the arrangement are set back to their factory settings.
If the change causes the solar system to require a relay that has been allocated to an arrangement function before, all adjustments made in the non-solar
part will be set back to their factory settings as well.
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First of all, the basic solar system can be selected according to the number of stores and collector fields
in use. The corresponding numbers are indicated on
the display.
The exemplary figure shows system 6 with its 3
stores and 2 collector fields (east- / west collectors).
The following items in the Solar / Basic settings
menu will adjust to the system selected.
When the basic system has been selected and confirmed, the hydraulic variant can be selected. The variant is visualised on the display by means of pump
and valve symbols. The exemplary figure shows variant 2 of system 6 with a 2-port valve and a pump. For
an overview of the basic systems and their variants
see chap. 5.2 on page 15.
The controller supports up to 2 collector fields and
up to 5 solar stores (with 2 collector fields only up to
4 solar stores).
Solar / Basic settings / Collector (1/2)
Collector (1/2)
In systems with 2 collector fields, 2 seperate menu
items (Collector 1 and Collector 2) are displayed
instead of Collector.
For each collector field, a collector minimum limitation and a collector emergency shutdown temperature can be adjusted.
Adjustment channel
Colmin.
Colmin.
Colem.
Colem.
Description
Minimum collector limitation
Minimum collector temperature
Collector emergency shutdown
Adjustment range / selection
Yes, No
10 ... 90 °C [50 ... 194 °F]
Yes, No
Factory setting
Yes
10 °C [50 °F]
Yes
Collector emergency
temperature
80 ... 200 °C [176 ... 392 °F]
130 °C [266 °F]
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Store (1 / 2 / 3 / 4 / 5)
In systems with 2 or more stores, the corresponding
number of seperate menu items (Store 1 to Store 5)
is displayed instead of Store.
For each store, an individual ∆T control, a set and
a maximum temperature, the priority, a hysteresis,
a rise value, a minimum runtime and a minimum
pump speed can be adjusted.
In multi-store-systems with differing Store set / Maximum store temperatures, all stores are loaded up
to their Stset temperatures first (according to their
priority and the store sequence control). Only when
all stores have exceeded Stset will they be loaded
up to their Stmax temperatures, again according to
their priority and the store sequence control.
Solar / Basic settings / Store (1 / 2 / 3 / 4 / 5)
Adjustment channel
Description
Adjustment range / selection
Factory setting
DTon
Switch-on temperature difference
1.0 ... 20.0 K [2.0 ... 40.0°Ra]
6.0 K [12.0 °Ra]
DToff
Switch-off temperature difference
0.5 ... 19.5 K [1.0 ... 39.0°Ra]
4.0 K [8.0 °Ra]
DTset
Set temperature
1.5 ... 30.0 K [1.5 ... 60.0°Ra]
10.0 K [20.0 °Ra]
Stset
Store set temperature
4 ... 95 °C [40 ... 204 °F]
45 °C [114 °F]
Stmax
Maximum store temperature
4 ... 95 °C [40 ... 204 °F]
60 °C [140 °F]
Priority
Priority
1
1 ... 5
(system-dependent)
HysSt
Hysteresis maximum store
temperature
0.1 ... 10.0 K [0.2 ... 20.0°Ra]
2.0 K [4.0 °Ra]
Rise
Rise
1.0 ... 20.0 K [2.0 ... 40.0°Ra]
2.0 K [4.0 °Ra]
tmin
Minimum runtime
0 ... 300
180
Min speed.
Minimum speed
30 ... 100 %
30 %
Deactivated
Blocked for solar loading
Yes, No
No
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8.2
Loading logic
In systems with 2 or more stores, loading logic adjustments can be made in this menu.
In systems 1 and 2, only the menu item Pump delay
will be available.
If the priority store cannot be loaded, the subordinate store next in priority is checked. If useful heat can
be added, it will be loaded for the circulation time
(Circ. – factory setting 15 min.) After this, the loa-
ding process stops and the controller monitors the
increase in collector temperature during the loading
break time Load. break. If it increases by 2 K [4° Ra],
the break time timer starts again to allow the collector to gain more heat. If the collector temperature
does not increase sufficiently, the subordinate store
will be loaded again for the Circ. time as before.
As soon as the switch-on condition of the priority
store is fulfilled, it will be loaded. If the switch-on
condition of the priority store is not fulfilled, loading
of the second store will be continued. If the priority
store reaches its maximum temperature, sequence
controlled loading will not be carried out.
If store sequence control is active and the system
switches to load the priority store, the parameter
Load. break also acts as a stabilisation timer, during
which the switch-off condition is ignored while the
system operation stabilises.
Solar optional functions
In this menu, additional functions can be selected
and adjusted for the solar part of the arrangement.
By selecting Add new function..., different preprogrammed functions can be selected. The optional functions are available as long as free relays are
available.
Solar / Basic settings / Loading logic
Adjustment channel
Description
Adjustment range / selection
Factory setting
Load. break
Loading break time
1 ... 5
2
Circ.
Circulation time
1 ... 60
15
Break speed
Pause speed
Yes, No
No
Speed
Pause speed
30 ... 100 %
30 %
Pump delay
Pump delay
Yes, No
No
Delay
Delay time
5 ... 600
15
When a function is selected, a submenu opens in
which all adjustments required can be made.
With this menu item, a relay and, if necessary, certain
system components can be allocated to the function.
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The menu item Relay selec. is available in all optional functions. Therefore, it will not be explained in
the individual function descriptions.
With this menu item, a relay can be allocated to the
function. All free relays are available for selection.
In the submenu Controller, all free relays of the controller are displayed. If external modules are connected and registered, their relays will be displayed in
corresponding submenus.
At the end of each optional function submenu, the
menu items Funct. and Delete function are available.
If the menu item Delete function is confirmed by
pressing button 5 , a security enquiry appears. The
setting can be changed between Yes and No by pressing buttons
and 4 . If Yes has been selected
and confirmed by pressing button 5 , the function
is deleted and available under Add new function...
again. The corresponding relays are available again.
Bypass
With the menu item Funct., an optional function
already selected can be temporarily deactivated or
re-activated respectively. All adjustments remain
stored, the allocated relays remain occupied and
cannot be allocated to another function.
When a function has been selected and adjusted, it
will appear in the Opt. functions above the menu
item Add new function....
This allows an easy overview of functions already
activated.
An overview about which sensor has been allocated
to which component and which relay has been allocated to which function is given in the Status / Service menu.
In order to prevent energy from being extracted
from the store when starting store loading, this
function makes sure that the cold fluid in the pipes is
diverted past the store via a bypass (valve or pump).
Once the pipe is warm enough, the store can be
loaded. The switch-on conditions can be adjusted
individually.
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Bypass
Variant pump:
Relay
Variant valve:
Bypass sensor
Variant valve (inverted):
Bypass sensor
Relay
Bypass sensor
Relay
Exemplary schematics for the bypass variants
Depending on whether the bypass is energised by a
valve or by a second pump, a corresponding adjustment can be made in the menu item Variant. Depending on the variant, different control logics are
applied:
Pump:
In this version, a bypass pump is placed in front of
the collector pump.
The bypass pump is first activated when store loading is possible. If the switch-on condition is fulfilled,
the bypass pump is switched off and the collector
circuit pump is activated.
Valve:
A bypass valve is placed into the solar circuit.
The solar heat exchanger is first bypassed when
store loading is possible. If the above-mentioned
switch-on condition is fulfilled, the bypass relay
switches the collector circuit via the heat exchanger.
When the valve variant is selected, the option Inverted is additionally available. When the Inverted
option is activated and the bypass circuit becomes
activated, the relay switches on. When solar loading
starts, the relay switches off again (see figure).
Solar / Opt. functions / Add new function... / Bypass
Adjustment
Description
channel
Adjustment range / selection
Factory setting
Collector
Collector field
system dependent
system dependent
Relay
Bypass relay
system dependent
system dependent
Variant
Variant (pump or valve logic)
pump, valve
pump
Inverted
Valve logic inversion
Yes, No
No
Sensor
Bypass sensor
system dependent
system dependent
ΔTon
Switch-on temperature difference
1.0 ... 20.0 K
6.0 K
ΔToff
Switch-off temperature difference
0.5 ... 19.5 K
4.0 K
Funct.
Activation / Deactivation
Activ., Deactivated
Activ.
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CS bypass
The CS bypass function is a different possibility to
activate the collector circuit. To enable the use of the
CS bypass function, a CS10 irradiation sensor has to
be connected.
When the CS bypass function is activated, the irradiation value is the switch-on condition for the collector circuit.
The relay remains switched on if the irradiation value is exceeded for the delay time. When solar loading begins or the irradiation value remains below
the switch-on value for the delay time, the relay is
switched off.
When the Stmax off option is activated, collector
circuit activation is suppressed as long as all store
temperatures are above their respective maximum
temperatures.
Solar / Opt. functions / Add new function... / CS bypass
Adjustment channel
Description
Adjustment range / selection Factory setting
Collector
Collector field
system dependent
system dependent
Irrad.
Switch-on irradiation
100 ... 500 W / m²
200 W / m²
Delay
Delay time
10 ... 300 s
120 s
Stmax off
Stmax switch-on suppression
Yes, No
Yes
Funct.
Activation / Deactivation
Activ., Deactivated
Deactivated
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Tube collector function
Solar / Opt. functions / Add new function... / Tube collector
Adjustment
Description
channel
Start
Start time frame
Stop
Stop time frame
Adjustment range / selecFactory setting
tion
00:00 ... 23:00
08:00
00:30 ... 23:30
19:00
Run
Break
Delay
Collector
Funct.
5 ... 600 s
1 ... 60 min
5 ... 600 s
system dependent
Activ., Deactivated
Pump runtime
Break
Pump delay
Collector field
Activation / Deactivation
30 s
30 min
30 s
system dependent
Deactivated
This function helps overcome the non-ideal sensor
position with some tube collectors.
This function operates within an adjusted time
frame. It activates the collector circuit pump for an
adjustable runtime between adjustable pauses in
order to compensate for the delayed temperature
measurement.
If the runtime is set to more than 10 s, the pump will
be run at 100 % for the first 10 s of the runtime. For
the remaining runtime, the pump will be run at the
adjusted minimum speed.
If the collector sensor is defective or the collector is
blocked, this function is suppressed or switched off.
2-collector systems
In 2-collector systems, the tube collector function is
available for each individual collector field.
If one of the collector fields is being loaded, the heat
transfer fluid flows through the inactive field and
only the corresponding relay is energised.
Multi-store systems
If the tube collector function is activated, the speed
of the solar pump will decrease to the minimum
speed during the loading break time. The solar loading of the subordinate store will continue.
In 2-collector systems, during the loading break
time, the collector field which has been active before the loading break time remains active during the
loading break time, unless the tube collector function of the inactive field becomes active.
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Target temperature
Solar / Opt. functions / Add new function... / Target temperature
Adjustment channel Description
Adjustment range / selection
Targ. temp.
Target temperature
20 ... 110 °C [68 ... 230 °F]
Sensor
Reference sensor
system dependent
Rise
Rise
1.0 ... 20.0 K [2.0 ... 40.0 °Ra]
Funct.
Activation / Deactivation
Activ., Deactivated
Factory setting
65 °C [150 °F]
system dependent
2.0 K [4.0 °Ra]
Deactivated
Antifreeze
Solar / Opt. functions / Add new function... / Antifreeze
Adjustment channel
Frost on
Frost off
Collector
Store (1 ... 5)
Funct.
Description
Antifreeze switch-on temperature
Antifreeze switch-off temperature
Collector field
Store succession order
Activation / Deactivation
Adjustment range / selection
-40 ... +15 °C [-40 ... +58 °F]
-39 ... +16 °C [-39 ... +60 °F]
system dependent
system dependent
Activ., Deactivated
Factory setting
+4 °C [+40 °F]
+6 °C [+44 °F]
system dependent
system dependent
Deactivated
When the Target temperature function is activated,
the pump speed control logic changes. The controller will remain at the minimum pump speed until
the temperature at the allocated sensor exceeds
the adjusted target temperature. Only then will the
standard pump speed control start to operate. If the
temperature at the allocated sensor changes by the
adjusted Rise value, the pump speed will be adjusted correspondingly.
If the Ext. HX (see page 43) function has beed activated, too, the target temperature control will pause
while the external heat exchanger is loaded. While
the external heat exchanger is loaded, its own pump
speed control will come into effect.
As soon as the temperature at the collector is 4 °C
[40 °F], the antifreeze function operates the loading
circuit between the collector and the 1st store in order to protect the heat transfer fluid in the loading
circuit against freezing or coagulation.
If the collector temperature exceeds 6 °C [44 °F], this
function is switched off.
Heat will be extracted from the stores according to
the adjusted order. If all stores have reached their
minimum temperature of 5 °C [42 °F], the function
becomes inactive.
The minimum pump speed is set to 100 %.
In 2-collector systems, the antifreeze menu is extended. The adjustment channels are seperated numerically.
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Afterheating suppression
The afterheating suppression blocks the conventional afterheating of a store that is currently in solar
loading.
This function is activated if a previously selected
Store is being loaded.
Solar loading means that store loading is only carried
out for energy supply and not for cooling purposes
etc.
If the Tset option is activated, the afterheating will
only be suppressed when the store temperature exceeds Tset.
Solar / Opt. functions / Add new function... / AH suppress.
Adjustment channel
Relay
Store
Tset
Funct.
Description
Reference relay
Sensor selection
Set temperature
Activation / Deactivation
Adjustment range / selection
system dependent
system dependent
Yes, No
Activ., Deactivated
Factory setting
system dependent
system dependent
No
Deactivated
Parallel relay
With this function, e. g. a valve can be controlled in
parallel to a solar pump via a separate relay.
Switch-on condition for the solar parallel relay function is that one or more of the selected stores is
being loaded. If at least one of the selected stores is
being loaded, the parallel relay is energised.
The parallel relay function operates regardless whether the store is subjected to regular solar loading or
to a loading caused by an optional function (such as
the collector cooling).
Solar / Opt. functions / Add new function... / Parallel relay
Adjustment channel
Relay
Store
Funct.
Description
Parallel relay
Sensor selection
Activation / Deactivation
Adjustment range / selection
system dependent
system dependent
Activ., Deactivated
Factory setting
system dependent
system dependent
Deactivated
Note:
If a relay is in the manual mode, the selected parallel relay will not be energised.
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Cooling mode
In the cooling mode menu, different cooling functions are available. They can be used for keeping the
solar system operational for a longer time during
strong solar irradiation.
For this purpose, the adjusted maximum store temperatures can be exceeded. The store order for this
overloading can be adjusted. Additionally, each individual store can be excluded from this function.
Two different variants are available for the cooling
mode: the system cooling and the collector cooling.
System cooling:
If the system cooling variant has been selected and
the switch-on temperature difference is exceeded,
store loading is continued even if the corresponding maximum temperature is exceeded, but only
up to the emergency shutdown temperature. Store
loading continues until all stores have reached the
emergency shutdown temperature or until the
switch-off temperature difference is reached.
Collector cooling:
If the collector cooling variant has been selected,
store loading is continued or reactivated when the
collector maximum temperature is exceeded.
Store loading continues until all stores have reached
the emergency shutdown temperature or until the
collector temperature falls below the collector maximum temperature by at least 5 K.
In 2-collector systems, separate adjustments can be
made for each collector field.
The control logic regards collector cooling operation
as solar loading. The adjusted values for delay, minimum runtime, etc. remain valid.
In addition to the cooling mode, store cooling is
available.
Store cooling:
When the store cooling function is activated, the
controller aims to cool down the store during the
night in order to prepare it for solar loading on the
following day.
When the store cooling function is activated, the solar pump is switched on if the maximum store temperature is exceeded and the collector temperature
falls below the store temperature. The solar pump
remains active until the store temperature falls
below the adjusted maximum store temperature.
The store order for the cooling is the same as in the
overheating through system- or collector cooling.
The holiday function works like the store cooling
function but aims to cool the store further down
during times without DHW consumption in order to
prepare it for solar loading on the following day. This
function can only be activated if the store cooling
function is activated.
The holiday function can either be activated manually when a phase with no DHW consumption begins, or a time frame, during which the function is
to become active, can be set in advance. If manual
is selected, an input can be allocated to the function.
When a switch is connected to the allocated input, it
will act as an on/off switch for the holiday function.
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Solar / Opt. functions / Add new function... / Cooling mode
Adjustment channel
Variant
Tcolmax.
Store (1 ... 5)
St cooling
∆Ton
∆Toff
Holiday
Activation
On
Off
Input
Description
Cooling logic variant
Collector maximum temperature
Store order
Store cooling
Switch-on temperature difference
Switch-off temperature difference
Holiday function
Activation mode
Holiday function switch-on date
Holiday function switch-off date
Holiday function switch input
Adjustment range / selection
Col. cool, Syst. cool., Off
70 ... 190 °C [158 ... 374 °F]
system dependent
Yes, No
1.0 ... 30.0 K [2.0 ... 60.0 °Ra]
0.5 ... 29.5 K [1.0 ... 59.0 °Ra]
Yes, No
Manual, Timer
Dates up to 31.12.2099
Dates up to 31.12.2099
system dependent
Factory setting
Off
100 °C [212 °F]
system dependent
No
20.0 K [40.0 °Ra]
15.0 K [30.0 °Ra]
No
Timer
Current date
Current date
system dependent
Stmax (1 ... 5)
Maximum store temperature
Holiday function
4 ... 95 °C [40 ... 204 °F]
40 °C [104 °F]
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Solar external heat exchanger
Solar / Opt. functions / Add new function... / Ext. HX
Adjustment channel
Relay
Min speed
Store
Sensor HX
Targ. temp.
Adjustment range / selection
system dependent
30 ... 100 %
system dependent
system dependent
Yes, No
Factory setting
system dependent
30 %
1
system dependent
No
system dependent
system dependent
Targ. temp.
∆Ton
∆Toff
Description
Relay selection
Minimum speed
Sensor selection
Reference sensor ext.HX
Target temperature option
Target temperature reference
sensor
Target temperature
Switch-on temperature difference
Switch-off temperature difference
15 ... 95 °C [60 ... 204 °F]
1.0 ... 20.0 K [2.0 ... 40.0 °Ra]
0.5 ... 19.5 K [1.0 ... 39.0 °Ra]
60 °C [140 °F]
10.0 K [20.0 °Ra]
5.0 K [10.0 °Ra]
Overrun
Overrun time
1 ... 15 min
2 min
Sensor
This function is used to link loading circuits that are
separated by an external heat exchanger.
The allocated relay is energised if one of the selected stores is being loaded and there is a temperature
difference between the sensor of the corresponding
store and the solar flow.
Any number of the solar stores can be selected.
The relay is switched off if this temperature difference falls below the adjusted switch-off difference.
In contrast to the bypass function, a differential control between Sensor HX and the store temperature
can be carried out by means of the heat exchanger
relay.
The reference sensor can be arbitrarily allocated.
In systems in which stores are equipped with their
own loading pumps, the relay “external heat exchanger“ controls the primary circuit pump.
The heat exchanger is protected by a non-adjustable antifreeze function.
Note:
Because of the special hydraulics, the target
temperature option will not work properly
in systems with 2 collector fields.
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Drainback option
A drainback system permits the heat transfer fluid to
drain back into the holding tank when solar energy
is not collected.The drainback option will initiate the
filling of the system when solar loading begins.
S1
R1
R2
booster pump
S4/TR
S3
S2
Exemplary drainback system layout
(R2 = booster pump)
Solar / Opt. functions / Add new function... / Drainback
Adjustment channel
Filling time
Stab. time
Initialis.
Booster
Relay
Drain impulse
Delay
Duration
Funct.
Description
Filling time
Stabilisation time
Initialisation time
Booster option
Booster pump relay selection
Drain impulse option
Delay time
Drain impulse loading duration
Activation / Deactivation
Adjustment range / selection
1 ... 30 min
1.0 ... 15.0 min
1 ... 100 s
Yes, No
system dependent
Yes, No
1 ... 30 min
1 ... 60 s
Activ., Deactivated
Factory setting
5 min
2,0 min
60 s
No
system dependent
No
3 min
10 s
Deactivated
Note:
A drainback system requires additional
components such as a holding tank. The
drainback option should only be activated
if all components required are properly installed.
The parameter Filling time is used to adjust the
time period for which the pump will be run at 100 %
speed in order to fill the system.
The parameter Stabilisation is used for adjusting
the time period during which the switch-off condition will be ignored after the filling time has ended.
The parameter Initialis. is used for adjusting the
time period during which the switch-on condition
must be permanentely fulfilled for the filling procedure to start.
The Booster option is used for switching on a second pump when filling the solar system. The corresponding relay is switched on at 100 % speed for the
duration of the filling time.
A short time (Delay time) after the system has been
emptied, the Drain impulse option will switch on
the solar pump for an adjustable Duration. Thus, a
hydrostatic head will form in the flow pipe. When it
falls back into the holding tank, water pockets remaining in the collector will be sucked down into
the holding tank.
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Twin pump
relay
reference relay
Exemplary figure of twin pumps in the solar flow with
upstream flowmeter
Solar / Opt. functions / Add new function... / Twin pump
Adjustment channel
Relay
Ref. relay
Runtime
Flow rate mon.
Flow rate sen.
Delay
Funct.
Description
Relay selection
Reference relay selection
Pump runtime
Flow rate monitoring option
Flow rate sensor selection
Delay time
Activation / Deactivation
Adjustment range / selection
system dependent
system dependent
1 ... 48 h
Yes, No
Imp1 ... Imp3, Ga1, Ga2, Gd1, Gd2
1 ... 10 min
Activ., Deactivated
Factory setting
system dependent
system dependent
6h
No
Imp1
5 min
Deactivated
The Twin pump function controls the equal distribution of pump runtime in systems with two equally
usable pumps.
If the allocated relay has exceeded its adjusted runtime and the next switch-on process is imminent,
the reference relay is switched on instead. All characteristics are adopted.
If the reference relay has in turn exceeded its runtime as well, the first relay is switched on again in the
next switch-on process.
Additionally, the Flow rate monitoring option can
be activated in order to activate the twin pump in
the case of a flow rate error. When the flow rate monitoring option is activated, two additional adjustment channels appear for allocating a sensor and
adjusting a delay time.
If the flow rate monitoring option is activated, an
error message will appear when no flow rate is detected at the allocated sensor after the Delay time
has passed. The active relay is considered as defective and will be blocked until the error message has
been acknowledged. The second relay will be activated instead. The twin pump function will pause until
the error message has been acknowledged.
When the error message is acknowledged, the controller runs a test during which it will energise the
relay and again monitor the flow rate.
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Heat dump
Relay
Note:
The switch-on collector temperature is
blocked against the emergency switch-off
temperature by 10 K [20 °Ra].
Solar / Opt. functions / Add new function... / Heat dump
Adjustment channel
Relay
Tcol.
Funct.
Description
Relay selection
Switch-on collector temperature
Activation / Deactivation
Adjustment range / selection
system dependent
40 ... 190 °C [104 ... 374 °F]
Activ., Deactivated
Factory setting
system dependent
110 °C [230 °F]
Deactivated
Flow rate monitoring
Solar / Opt. functions / Add new function... / Flow rate mon.
Adjustment channel
Sensor
Ref. relay
Store
Funct.
Description
Flow rate sensor selection
Reference relay selection
Sensor selection
Activation / Deactivation
Adjustment range / selection
Imp1 ... Imp3, Ga1, Ga2, Gd1, Gd2
system dependent
system dependent
Activ., Deactivated
Factory setting
Imp1
system dependent
1
Deactivated
The heat dump function can be used to direct excess
heat generated by strong solar irradiation to an external heat exchanger (e. g. fan coil) in order to prevent the collectors from overheating.
The allocated relay is energised with 100 %, if the col­
lector temperature reaches the adjusted switch-on
temperature. If the collector temperature falls by 5 K
below the adjusted collector overtemperature, the
relay will be switched off.
If one of the store temperatures exceeds its respective maximum temperature by more than 5 K while
the heat dump function is active, the function is
deactivated and an error message appears. If the
store temperature falls below the maximum store
temperature again, the heat dump function is released.
The flow rate monitoring function can be used to detect malfunctions that impede the flow rate and to
switch off the corresponding relay. This will prevent
system damage, e. g. through a dry run of the pump.
If the flow rate monitoring function is activated,
an error message will appear when no flow rate is
detected at the allocated flowmeter after the delay
time has passed. The store being loaded is blocked
for any further loading until the error message has
been ac­knowl­edged. The next store free for loading
will be loaded instead.
The error message will appear both in the Status
/ Messages menu and in the optional function
menu. It can only be acknowledged in the optional
function menu. When the error message is acknowledged, the controller runs a test during which it will
energise the relay and again monitor the flow rate.
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8.3
9
Solar expert menu
Flow
sensor
Arrangement
In this menu, all adjustments for the non-solar part
of the arrangement can be made.
A range of optional functions can be selected and
adjusted.
Return sensor
Example of flow- and return sensor positions
9.1
Optional functions
Solar / Expert
Adjustment channel
Flow sensor
Sensor
Return sensor
Sensor
Description
Flow sensor option
Flow sensor selection
Return sensor option
Return sensor selection
The expert menu is only available when the expert
user code has been entered.
In the expert menu, a flow and a return sensor can
be selected and allocated. The activated sensors are
used to detect the switch-off conditions.
Adjustment range / selection
Yes, No
system dependent
Yes, No
system dependent
Factory setting
No
system dependent
No
system dependent
Note:
Because of the special hydraulics, this function will not work properly in systems with
2 collector fields.
In this menu, additional functions can be selected
and adjusted for the arrangement.
By selecting Add new function..., different preprogrammed functions can be selected. The optional functions are available as long as free relays are
available.
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When a function is selected, a submenu opens in
which all adjustments required can be made.
With this submenu, a relay and, if necessary, certain
system components can be allocated to the function.
When a function has been selected and adjusted, it
will appear in the Opt. functions above the menu
item Add new function....
This allows an easy overview of functions already activated.
An overview about which sensor has been allocated to
which component and which relay has been allocated
to which function is given in the Status / Service menu.
If the menu item Delete function is confirmed by
pressing button 5 , a security enquiry appears.
The setting can be changed between Yes and No
by pressing buttons
and 4 . If Yes has been
selected and confirmed by pressing button 5
, the function is deleted and available under Add
new function... again. The corresponding relays are
available again.
Parallel relay
The menu item Relay selec. is available in all optional functions. Therefore, it will not be explained in
the individual function descriptions.
With this menu item, a relay can be allocated to the
function. All free relays are available for selection.
In the submenu Controller, all free relays of the controller are displayed. If external modules are connected and registered, their relays will be displayed in
corresponding submenus.
At the end of each optional function submenu, the
menu items Funct. and Delete function are available.
Note:
If a relay is in the manual mode, the selected parallel relay will not be energised.
With the menu item Funct., an optional function
already selected can be temporarily deactivated or
re-activated respectively. All adjustments remain
stored, the allocated relays remain occupied and
cannot be allocated to another function.
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Arrangement / Opt. functions / Add new function... / Parallel relay
Adjustment channel
Relay
Ref. relay
Overrun
Duration
Delay
Duration
Inverted
Funct.
Description
Relay selection
Reference relay selection
Overrun option
Overrun time
Delay option
Delay time
Inverted switching option
Activation / Deactivation
Adjustment range / selection
system dependent
system dependent
Yes, No
1 ... 30 min
Yes, No
1 ... 30 min
Yes, No
Activ., Deactivated
Factory setting
system dependent
system dependent
No
1 min
No
1 min
No
Deactivated
Mixer
Arrangement / Opt. functions / Add new function... / Mixer
Adjustment channel
Relay closed
Relay open
Sensor
TMixer
Interval
Runtime
Description
Relay selection mixer closed
Relay selection mixer open
Sensor selection
Mixer target temperature
Mixer interval
Mixer runtime
Adjustment range / selection
system dependent
system dependent
system dependent
0 ... 130 °C [32 ... 266 °F]
1 ... 20 s
10 ... 600 s
Factory setting
system dependent
system dependent
system dependent
60 °C [140 °F]
4s
240 s
Offset
Automatic adaption of the
mixer runtime
-
-
Time
Funct.
Adjustment time
Activation / Deactivation
00:00 ... 23:30
Activ., Deactivated
23:30
Deactivated
The Parallel relay function can be used to operate an allocated parallel relay alongside a selected
reference relay. With this function, e. g. a valve can
be controlled in parallel to the pump via a separate
relay.
If the Overrun option is activated, the parallel relay
remains switched on for the adjusted duration time
after the reference relay has been switched off.
If the Delay option is activated, the parallel relay
will be energised after the adjusted duration has
expired. If the reference relay is switched off again
during the delay time, the parallel relay will not be
switched on at all.
If the Inverted option is activated, the parallel relay
switches on when the reference relay switches off
and vice versa.
The mixer function can be used to adjust the actual
flow temperature to the desired mixer target temperature TMixer. The mixer is opened or closed in
pulses depending on this deviation. The pulses are
determined by the adjustable Interval. The pause
is determined by the difference between the actual
value and the set value.
The mixer runtime can either be adjusted in the
channel Runtime or automatically adapted with the
Offset function. When Offset is selected, the mixer
will close first. When button 5 is pressed, the mixer
opens and the seconds are counted in the display.
As soon as the mixer has reached its open position, press button 5 again. The time measured will
automatically appear as the value for the channel
Runtime.
Once per day, the mixer will automatically adjust itself. The exact Time for that can be adjusted.
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Boiler loading
The boiler loading function can be used to load a
store zone between 2 sensors. For the monitoring
of switch-on and switch-off conditions, 2 sensors
are used. The switch-on and switch-off temperatures TBoiler on and TBoiler off are used as reference
parameters.
If the measured temperatures at both allocated
sensors fall below the adjusted switching threshold
TBoiler on, the relay is energised. It is switched off
again when the temperature at both sensors has exceeded TBoiler off.
If one of the two sensors is defective, store loading is
suppressed or switched off.
In order to adjust the timer, press button 5 .
First the individual days of the week or all days of the
week can be selected. The last menu item after the
list of days is Continue. If Continue is selected, the
Edit timer menu opens, in which the time frames
can be adjusted.
The time frames can be adjusted in steps of 15 minutes. The cursor can be moved along the time line
by pressing buttons
or 4 . The beginning of a
time frame can be determined by pressing button
1 . The end of a time frame can be determined by
pressing button 3 .
When the Timer option is activated, a timer is indicated in which time frames for the function can be
adjusted.
First of all, an overview of the current adjustment is
displayed. For each day of the week there is an overview display. The display can be switched back and
forth between the different days by pressing buttons
or 4 .
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Arrangement / Opt. functions / Add new function... / Boiler loading
Adjustment channel
Relay
Sensor top
Sensor base
TBoiler on
TBoiler off
Timer
Timer
Description
Relay selection
Top sensor selection
Base sensor selection
Boiler switch-on temperature
Boiler switch-off temperature
Timer option
Timer
Days of the week
Day selection
Timer
Funct.
Time frame adjustment
Activation / Deactivation
Adjustment range / selection
system dependent
system dependent
system dependent
0 ... 94 °C [32 ... 202 °F]
1 ... 95 °C [34 ... 204 °F]
Yes, No
All days, Monday ... Sunday,
Continue
00:00 ... 23:45
Activ., Deactivated
Factory setting
system dependent
system dependent
system dependent
45 °C [114 °F]
60 °C [140 °F]
No
Deactivated
Error relay
The error relay function can be used to operate a
relay in the case of an error. Thus, e. g. a signalling
device can be connected to signal errors.
If the error relay function is activated, the allocated
relay will be energised when a sensor fault occurs.
If the flow rate monitoring function is activated, the
error relay will additionally energised in the case of
a flow rate error.
Arrangement / Opt. functions / Add new function... / Error relay
Adjustment channel Description
Relay
Relay selection
Funct.
Activation / Deactivation
Adjustment range / selection
system dependent
Activ., Deactivated
Factory setting
system dependent
Deactivated
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Heat exchange
Sensor Source
Relay
Sensor Sink
The heat exchange function can be used for transferring heat from a heat source to a heat sink.
The allocated relay is energised when all switch-on
conditions are fulfilled:
• the temperature difference between the allocated
sensors has exceeded the switch-on temperature
difference
• the temperature at the heat source sensor has
exceeded the minimum temperature
• the temperature at the heat sink sensor has fallen
below the maximum temperature
If ∆Tset is exceeded, pump speed control will come
into effect. For every deviation of 2 K [4 °Ra], the
pump speed will be adjusted by 10 %.
Arrangement / Opt. functions / Add new function... / Heat exchange
Adjustment channel
Relay
Sen. So.
Sen. Sink
∆Ton
∆Toff
∆Tset
Min. speed
Tmax
Tmin
Funct.
Description
Relay selection
Heat source sensor selection
Heat sink sensor selection
Switch-on temperature difference
Switch-off temperature difference
Set temperature difference
Minimum speed
Maximum temperature of the
store to be loaded
Minimum temperature of the
store to be loaded
Activation / Deactivation
Adjustment range / selection
system dependent
system dependent
system dependent
1.0 ... 30.0 K [2.0 ... 60.0 °Ra]
0.5 ... 29.5 K [1.0 ... 59.0 °Ra]
1.5 ... 40.0 K [3.0 ... 80.0 °Ra]
30 ... 100 %
Factory setting
system dependent
system dependent
system dependent
6.0 K [12.0°Ra]
4.0 K [8.0°Ra]
10.0 K [20.0°Ra]
30 %
10 ... 95 °C [50 ... 204 °F]
60 °C [140 °F]
10 ... 95 °C [50 ... 204 °F]
10 °C [50 °F]
Activ., Deactivated
Deactivated
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Solid fuel boiler
Sensor Solid fuel boiler
Relay
Sensor Store
The solid fuel boiler function can be used for transferring heat from a solid fuel boiler to a store.
The allocated relay is energised when all switch-on
conditions are fulfilled:
• the temperature difference between the allocated
sensors has exceeded the switch-on temperature
difference
• the temperature at the solid fuel boiler sensor has
exceeded the minimum temperature
• the temperature at the store sensor has fallen
below the maximum temperature
If ∆Tset is exceeded, pump speed control will come
into effect. For every deviation of 2 K [4 °Ra], the
pump speed will be adjusted by 10 %.
Arrangement / Opt. functions / Add new function... / Solid fuel boiler
Adjustment channel
Relay
Sen. Boiler
Sen. Store
∆Ton
∆Toff
∆Tset
Min. speed
Tmax St.
Tmin boiler
Description
Relay selection
Solid fuel boiler sensor selection
Store sensor selection
Switch-on temperature difference
Switch-off temperature difference
Set temperature difference
Minimum speed
Maximum temperature
Minimum temperature
Adjustment range / selection
system dependent
system dependent
system dependent
1.0 ... 30.0 K [2.0 ... 60.0 °Ra]
0.5 ... 29.5 K [1.0 ... 59.0 °Ra]
1.5 ... 40.0 K [3.0 ... 80.0 °Ra]
30 ... 100 %
10 ... 95 °C [50 ... 204 °F]
10 ... 95 °C [50 ... 204 °F]
Factory setting
system dependent
system dependent
system dependent
6.0 K [12.0°Ra]
4.0 K [8.0°Ra]
10.0 K [20.0°Ra]
30 %
60 °C [140 °F]
60 °C [140 °F]
Funct.
Activation / Deactivation
Activ., Deactivated
Deactivated
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Circulation
Sensor
Circulation
The circulation function can be used for controlling
a circulation pump.
For the control logic, 5 different variants are available:
• Thermal
• Timer
• Therm. + Timer
• Demand
• Demand + Timer
If one of the variants is selected, the corresponding
adjustment channels will appear.
Thermal
The temperature at the allocated sensor is monitored. The allocated relay switches on when the adjusted switch-on temperature is exceeded. If the temperature falls below the switch-off temperature, the
relay switches off.
Timer
The relay is switched on during the adjusted time
frames, outside of them it switches off. For information on how to adjust the timer, see below.
Therm. + Timer
The relay operates when the switch-on conditions of
both above mentioned variants are fulfilled.
Demand + Timer
The relay operates when the switch-on conditions of
both above mentioned variants are fulfilled.
Relay
Demand
The allocated FS08 flow switch is monitored for continuity (circuit continuity is achieved when fluid passes through the flow switch). If circuit continuity is
detected at the flow switch, the relay switches on for
the adjusted runtime. After the runtime has ended,
the relay is switched off. During the adjusted break
time, the relay remains switched off even if continuity is detected at the flow switch.
Note:
If the flow switch is connected to the input
S1 ... S12, continuity must be detected for at
least 5 s for the controller to an impuls input at least 1 s.
When the Timer, Therm. + Timer or Demand + Timer variant is activated, a timer is indicated in which
time frames for the function can be adjusted.
First of all, an overview of the current adjustment is
displayed. For each day of the week there is an overview display. The display can be switched back and
forth between the different days by pressing buttons
or 4 .
In order to adjust the timer, press button 5 .
First, the individual days of the week or all days of
the week can be selected. The last menu item after
the list of days is Continue. If Continue is selected, the Edit timer menu opens, in which the time
frames can be adjusted.
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The time frames can be adjusted in steps of 15 minutes. The cursor can be moved along the time line by
pressing buttons
or 4 .
The beginning of a time frame can be determined by
pressing button 1 . The end of a time frame can be
determined by pressing button 3 .
Arrangement / Opt. functions / Add new function... / Circulation
Adjustment channel Description
Relay
Relay selection
Sensor
Ton
Toff
Timer
Adjustment range / selection
system dependent
Demand, Thermal, Timer,
Circulation Type
Therm.+Timer, Demand+Timer
Circulation sensor selection system dependent
Switch-on temperature
10 ... 59 °C [50 ... 138 °F]
Switch-off temperature
11 ... 60 °C [52 ... 140 °F]
Timer
-
Factory setting
system dependent
Type
Thermal
Days of the week
Day selection
All days, Monday ... Sunday,
Continue
-
Timer
Sensor
Delay
Runtime
Break time
Time frame adjustment
FS08 sensor input selection
Demand delay time
Runtime
Break time
00:00 ... 23:45
system dependent
0 ... 2 s
01:00 ... 15:00 min
10 ... 60 min
system dependent
1s
03:00 min
30 min
Funct.
Activation / Deactivation
Activ., Deactivated
Deactivated
system dependent
40 °C [104 °F]
45 °C [114 °F]
-
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Return preheating
Sensor HS
Relay
Sensor
Return
The return preheating function can be used for
transferring heat from a heat source to the heating
circuit return.
The allocated relay is energised when both switchon conditions are fulfilled:
• the temperature difference between the allocated
sensors has exceeded the switch-on temperature
difference
• the temperature at the outdoor temperature
sensor has fallen below the adjusted outdoor
temperature
With the summer switch-off option, the return preheating can be suppressed outside the heating period. If the heating circuit concerned is controlled by
the controller, the adjustments automatically adapt
to the heating circuit.
Arrangement / Opt. functions / Add new function... / Ret. preheat.
Adjustment chanDescription
nel
Adjustment range / selection Factory setting
Relay
Sen. Return
Sen. HS
∆Ton
∆Toff
Summer off
Sensor
Toff
Relay selection
Return sensor selection
Heat source sensor selection
Switch-on temperature difference
Switch-off temperature difference
Summer switch-off option
Outdoor sensor selection
Switch-off temperature
system dependent
system dependent
system dependent
2.0 ... 30.0 K [4.0 ... 60.0 °Ra]
1.0 ... 29.0 K [2.0 ... 58.0 °Ra]
Yes, No
system dependent
10 ... 60 °C [50 ... 140 °F]
system dependent
system dependent
system dependent
6.0 K [12.0 °Ra]
4.0 K [8.0 °Ra]
No
system dependent*
20 °C [68 °F]
Funct.
Activation / Deactivation
Activ., Deactivated
Deactivated
* When a heating circuit has been activated, this
adjustment is determined by the corresponding
parameter in the heating circuit menu.
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Function block
In addition to the pre-defined optional functions,
function blocks consisting of thermostat functions,
timer and differential functions are available. With
the help of these function blocks, further components, resp. functions can be controlled.
To each function block, sensors and free relays can
be allocated. Sensors already in use can be allocated
again without impeding their control functions.
Within a function block the functions are interconnected (AND gate). This means that the conditions
of all the activated functions have to be fulfilled (e.
g. thermostat and timer) for switching the allocated
relay. As soon as one condition is not fulfilled, the relay is switched off.
Function
Relay
Thermostat
Differential function ∆T
Timer
Function block 1
3
thermostat a- S3
thermostat b- S4
Sen. 1
∆T
Sen. 2
Timer
Thermostat function
The relay allocated to the function block is switched
on, when the adjusted switch-on temperature (Th(x)
on) is reached. It is switched off when the adjusted
switch-off temperature (Th(x)off ) is reached. The
switching conditions of all other activated functions
of the function block have to be fulfilled as well.
Allocate the reference sensor in the Sensor channel.
Adjust the maximum temperature limitation with
Th(x)off> Th(x)on and the minimum temperature
limitation with Th(x)on> Th(x)off. The temperatures
cannot be set to an identical value.
Tha-S3
Thb-S4
∆T function
The relay allocated to the function block is switched
on as soon as the adjusted switch-on temperature
difference (ΔTh(x)on) is reached. It is switched off
as soon as the adjusted switch-off temperature difference (ΔTh(x)off ) is reached. The switching conditions of all other activated functions of the function
block have to be fulfilled as well.
The ΔT function is equipped with a speed control
function. A set temperature difference and a minimum speed can be adjusted. The non-adjustable rise
value is set to 2 K.
T-S3>S4
Timer
R3
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Arrangement / Opt. functions / Add new function... / Function block
Adjustment
channel
Description
Adjustment range / selection
Factory setting
Relay
Relay selection
system dependent
system dependent
Thermostat a
Thermostat a
Yes, No
No
Th-a on
Switch-on temperature Thermostat a
-40 ... 250 °C
40 °C
Th-a off
Switch-off temperature Thermostat a -40 ... 250 °C
45 °C
Sensor
Sensor thermostat a
system dependent
system dependent
Thermostat b
Thermostat b
Yes, No
No
Th-b on
Switch-on temperature Thermostat b -40 ... 250 °C
40 °C
Th-b off
Switch-off temperature Thermostat b -40 ... 250 °C
45 °C
Sensor
Sensor thermostat b
system dependent
system dependent
ΔT function
Differential function
Yes, No
No
ΔTon
Switch-on temperature difference
1.0 ... 50.0 K
5.0 K
ΔToff
Switch-off temperature difference
0.5 ... 49.5 K
3.0 K
ΔTset
Set temperature difference
3 ... 100 K
10 K
Min. speed
Minimum speed
30 ... 100 %
30 %
Sen. Source
Heat source sensor
system dependent
system dependent
Sen. Sink
Heat sink sensor
system dependent
system dependent
Timer
Timer
-
-
All days, Monday ... Sunday,
Continue
-
Days of the week Day selection
Timer
Time frame adjustment
00:00 ... 23:45
-
Funct.
Activation / Deactivation
Activ., Deactivated
Deactivated
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Irradiation switch
The Irrad. switch function can be used for operating
a relay depending on the measured irradiation value.
The allocated relay is switched on if the adjusted irradiation value remains exceeded for the adjusted
duration. If the irradiation falls below the adjusted
value for the adjusted duration, the relay is switched
off.
If the Inverted option is activated, the relay operates
vice versa.
Arrangement / Opt. functions / Add new function... / Irradiation switch
Adjustment channel
Relay
Irrad.
Duration
Inverted
Funct.
10
Description
Relay selection
Switch-on irradiation
Switch-on duration
Inverted switching option
Activation / Deactivation
Adjustment range / selection
system dependent
50 ... 1000 W / m²
0 ... 30 min
Yes, No
Activ., Deactivated
Factory setting
system dependent
200 W / m²
2 min
No
Deactivated
Heating
In this menu, all adjustments for the heating part of
the arrangement or for the heating circuits respectively can be made.
Demands can be activated, heating circuits can be
parameterised and optional functions can be selected and adjusted.
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10.1
Demands
Heating / Demands
Adjustment channel
Demand 1 (2)
Relay
10.2
Description
Demand 1 (2)
Relay selection
Adjustment range / selection
Activ., Deactivated
system dependent
Factory setting
Deactivated
system dependent
In this menu, up to 2 heating demands can be activated and adjusted.
Activated demands will be available for selection
in the relay allocation channels of the corresponding optional functions . This way, several optional functions can demand the same heat source.
If, for example the potential-free changeover relay
R14 is allocated to Demand 1, the selection AHDem.1 will then become available in addition to the
free relays in the adjustment channels Demand of
the optional functions for the heating part of the
arrangement (see page 64). This way, e. g. the DHW
heating function can demand the same boiler for afterheating as the thermal disinfection function.
Heating circuits
The controller has two internal, weather-compensated heating circuits and is able to control up to
5 external heating circuits by means of extension
modules.
In the menu appearing when New heating circuit
is selected, it is possible to choose between the internal heating circuits and, if available, registered
modules.
If one or more extension modules are connected,
they have to be registered with the controller. Only
registered modules are available in the heating circuit selection.
Extension modules can be registered in the In-/Out-
puts / Modules menu (see page 72). If an internal or
external heating circuit has been selected, a new
menu opens. In this menu, all sensors and relays required for the heating circuit can be allocated, and
all adjustments can be made.
The controller calculates the set flow temperature
for each heating circuit by means of the outdoor
temperature and the selected heating curve. If the
measured flow temperature deviates from the set
flow temperature, the mixer is activated in order to
adjust the flow temperature correspondingly.
If the outdoor temperature falls below the point
where the calculated set flow temperature would exceed the maximum flow temperature, the maximum
flow temperature is treated as the set temperature
for as long as the condition remains.
If the outdoor temperature sensor is defective, an
error message is indicated. For the duration of this
condition, the maximum flow temperature -5 K is assumed as set flow temperature.
With the timer, the day / night operation can be adjusted. During day phases, the set flow temperature
is increased by the adjusted day correction value,
during night phases it is decreased by the night correction value (night setback).
Summer mode
The Mode channel adjustment determines how the
heating circuit is set to summer mode:
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Summer off: The summer mode becomes active
when the outdoor temperature exceeds the adjusted summer temperature TSummer.
Ext. switch: A switch is connected to a selected
sensor input. If the switch is operated, the heating
circuit is set to summer mode regardless of the outdoor temperature.
Both: As long as the switch is not operated, summer
mode control works as described for Summer off.
Summer mode is activated regardless of the outdoor
temperature when the switch is operated.
Summer temperature
If Summer off or Both has been selected in the
Mode channel, the summer temperature TSummer
can be adjusted. If the outdoor temperature exceeds
the value adjusted in TSummer, the heating circuit
pump is switched off.
For the summer temperature, a daytime time frame
can be adjusted with the channels Daytime on and
Daytime off. Outside this time frame, the adjustable
temperature TNight replaces TSummer.
With the Room thermostat option, up to 5 room
thermostats can be integrated into the control logic.
To each room thermostat, a sensor input can be allocated. The temperature at the allocated sensor is
monitored. If the measured temperature exceeds
the adjusted Room temperature value at all activated room thermostats, the heating circuit pump
is deactivated and the mixer remains in its current
position.
Common room thermostats with potential-free outputs can be used alternatively. In this case, Switch
must be adjusted in the Type channel. Before adjusting the type, the corresponding input must also
be set to Switch in the Inputs / Outputs menu. Only
inputs set to Switch will be displayed in the Sen.
RTH channel as possible inputs for a switch type
room thermostat.
If the Timer RTH option is activated, time frames
can be set for the room thermostats (for information
on how to adjust the timer see below). During these
time frames, the adjusted room temperature is decreased by the Correction value.
To each room thermostat, an additional relay can be
allocated. That relay will operate when the temperature at the allocated sensor falls below the adjusted
room temperature. This way, the room in question
can be excluded from the heating circuit via a valve
as long as the desired room temperature is reached.
In the channel RTH, the room thermostat can be
temporarily deactivated or re-activated respectively.
All adjustments remain stored.
When the Timer option is activated, a timer is indicated in which time frames for the function can be
adjusted.
First of all, an overview of the current adjustments is
displayed. For each day of the week there is an overview display. The display can be switched back and
forth between the different days by pressing buttons
or 4 .
In order to adjust the timer, press button 5 .
First the individual days of the week or all days of the
week can be selected. The last menu item after the
list of days is Continue. If Continue is selected, the
Edit timer menu opens, in which the time frames
can be adjusted.
The time frames can be adjusted in steps of 15 minutes. The cursor can be moved along the time line
or 4 . The beginning of a
by pressing buttons
time frame can be determined by pressing button
1 . The end of a time frame can be determined by
pressing button 3 .
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Heating / HCs / New HC / Internal
Adjustment channel Description
Adjustment range / selection Factory setting
HC pump
Heating circuit pump
system dependent
system dependent
Mixer open
Relay selection mixer open
system dependent
system dependent
Mixer closed
Relay selection mixer closed
system dependent
system dependent
Flow sensor
Flow sensor selection
system dependent
system dependent
Sen. Outd.
Outdoor sensor selection
system dependent
system dependent
Heating curve
Heating curve
0.3 ... 3.0
1.0
Day correction
Day correction
-5 ... +45 K
0K
Tflowmax
Maximum flow temperature
10 ... 100 °C
50 °C
Mode
Operation mode
Summer off, Ext. switch, both
Summer off
TSummer
Summer temperature day
0 ... 40 °C
20 °C
Daytime on
Daytime on
00:00 ... 23:45
00:00
Daytime Off
Daytime Off
00:00 ... 23:45
00:00
Tnight
Summer temperature night
0 ... 40 °C
14 °C
Ext. switch
External switch sensor input selection
system dependent
system dependent
Remote control
Remote control option
Yes, No
No
Sen. Rem.control
Remote control sensor input selection system dependent
system dependent
Timer
Timer option
Yes, No
No
Mode
Timer mode
Day / Night, Day / Off
Day / Night
Night corr.
Night correction
-20 ... +30 K
-5 K
Timer
Timer
-
-
Days of the week
Day selection
All days, Monday ... Sunday,
Continue
-
Timer
Time frame adjustment
00:00 ... 23:45
-
Room therm. 1 ... 5
Room thermostat option (1 ... 5)
Yes, No
No
Type
Room thermostat type selection
Sensor, Switch
Sensor
Sen. RTH
RTH sensor input selection
system dependent
system dependent
Troom
Room temperature
10 ... 30 °C
18 °C
Timer
RTH timer
Yes, No, Inactive
No
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Adjustment channel Description
Adjustment range / selection Factory setting
Days of the week
All days, Monday ... Sunday,
Continue
Day selection
-
Timer
Time frame adjustment
00:00 ... 23:45
-
Correction
Correction
1 ... 20 K
5K
Relay
RTH relay selection
system dependent
system dependent
RTH
Room thermostat
Activ., Deactivated
Deactivated
Afterheating
Afterheating option
Yes, No
No
Mode
Afterheating mode
Therm., Boiler
Therm.
Relay
Afterheating relay selection
system dependent
system dependent
Sensor 1
Afterheating sensor 1 selection
system dependent
system dependent
Sensor 2
Afterheating sensor 2 selection
system dependent
system dependent
Loading pump
Loading pump option
Yes, No
No
Relay
Loading pump relay selection
system dependent
system dependent
Overrun time
Loading pump overrun time
0 ... 300 s
60 s
Activ.
Activation / Deactivation
Activ., Deactivated
ΔTon
Switch-on temperature difference -15.0 ... +44.5 K
+5.0 K
+15.0 K
Deactivated
ΔToff
Switch-off temperature difference -14.5 ... +45.0 K
Function
Function activated / deactivated
Activ., Deactivated
Deactivated
Interval
Mixer interval
1 ... 20 s
4s
Runtime
Mixer runtime
10 ... 600 s
240 s
Offset
Automatic adaption of the mixer
runtime
-
Time
Adjustment time
00:00 ... 23:45
23:30
Chimney sweeper
Chimney sweeper function
Yes, No
No
Yes
Frost protection
Antifreeze option
Yes, No
Sensor
Antifreeze option sensor
Flow, Outdoor
Flow
Antifr. temp.
Antifreeze temperature
-20 ... +10 °C
+4 °C
Flow set
Set flow temperature
10 ... 50 °C
20 °C
Runtime
Antifreeze runtime
15 ... 240 min
30 min
DHW priority
DHW priority option
Yes, No
No
Funct.
Activation / Deactivation
Activ., Deactivated
Deactivated
Chimney sweeper function
The chimney sweeper function can be used for enabling a quick access to measurement conditions
without menu operation for the chimney sweeper.
If the chimney sweeper function is activated, the
chimney sweeper mode can be accessed by pressing button 6 for 5 seconds.
In the chimney sweeper mode, the heating circuit
mixer closes, the loading pump and the afterheating
contact are activated. While the chimney sweeper
mode is active, the directional pad is illuminated.
Additionally, Chimney sweeper and a countdown
of 30 minutes are indicated on the display.
When the countdown has elapsed, the chimney
sweeper mode is automatically deactivated. If, during the countdown, button 6 is again pressed for
more than 10 seconds, the countdown starts again.
In order to abort the countdown and thus deactivate the chimney sweeper mode, briefly press
button 6 .
Antifreeze option
The antifreeze option of the heating circuit can be
used to temporarily activate an inactive heating circuit during sudden temperature drops in order to
protect it from frost damage.
When the antifreeze option is activated, the temperature at the allocated sensor is monitored. If
the temperatur falls below the adjusted antifreeze
temperature, the heating circuit is activated for the
adjusted runtime. Antifreeze operation has its own
set flow temperature which can be changed in the
Flow set channel.
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10.3
Optional functions
In this menu, additional functions can be selected
and adjusted for the heating part of the arrangement.
By selecting Add new function..., different preprogrammed functions can be selected. The optional functions are available as long as free relays are
available.
When a function is selected, a submenu opens in
which all adjustments required can be made.
With this submenu, a relay and, if necessary, certain
system components can be allocated to the function.
The menu item Demand is available in all optional
heating functions. Therefore, it will not be explained
in the individual function descriptions.
With this menu item, an afterheating demand relay
can be allocated to the function. All free relays are
available for selection.
In the submenu Controller, all free relays of the controller are displayed. If external modules are connected and registered, their relays will be displayed in
corresponding submenus.
At the end of each optional function submenu, the
menu items Function and Delete function are
available.
With the menu item Function, an optional function
already selected can be temporarily deactivated or
re-activated respectively. All adjustments remain
stored, the allocated relays remain occupied and
cannot be allocated to another function.
When a function has been selected and adjusted, it
will appear in the Opt. functions above the menu
item Add new function....
This allows an easy overview of functions already
activated.
An overview about which sensor has been allocated
to which component and which relay has been allocated to which function is given in the Status / Service menu.
If the menu item Delete function is confirmed by
pressing button 5 , a security enquiry appears. The
setting can be changed between Yes and No by pressing buttons
and 4 . If Yes has been selected
and confirmed by pressing button 5 , the function
is deleted and available under Add new function...
again. The corresponding relays are available again.
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Thermal disinfection
Due to the flexible control logic, the exact time of
thermal disinfection is not predictable. In order to
set a fixed time for the disinfection to be run, the starting delay must be used:
This function helps to contain the spread of Legionella in DHW stores by systematically activating the
afterheating.
For thermal disinfection, the temperature at the allocated sensor has to be monitored. This protection
is ensured when, during the monitoring period, the
disinfection temperature is continuously exceeded
for the entire disinfection period.
If the thermal disinfection function is activated, the
monitoring period starts as soon as the temperature
at the allocated sensor falls below the disinfection
temperature. When the monitoring period ends, the
allocated reference relay activates the afterheating.
The disinfection period starts to count as soon as the
temperature at the allocated sensor exceeds the disinfection temperature.
If the temperature at the allocated sensor exceeds
the disinfection temperature by more than 5 K
[10 °Ra], the reference relay switches off until the
temperature has fallen below a value of 2 K [4 °Ra],
above the disinfection temperature.
Thermal disinfection can only be completed when
the disinfection temperature is exceeded for the
duration of the disinfection period without interruption.
If the disinfection conditions have been fulfilled by
solar loading before the monitoring period ends,
thermal disinfection is considered complete and a
new monitoring period begins.
If the starting delay option Starting time is activated, a starting time for the thermal disinfection with
starting delay can be adjusted. The activation of the
afterheating is then delayed until that starting time
after the monitoring period has ended.
If the monitoring period ends, for example, at 12:00
o'clock, and the starting time has been set to 18:00,
the reference relay will be energised with a delay of
6 hours at 18:00 instead of 12:00 o'clock.
If, during the waiting time, the disinfection conditions are fulfilled by solar loading, thermal disinfection is considered complete and a new monitoring
period begins.
Heating / Opt. functions / Add new function... / Th. disinfection
Adjustment channel
Demand
Circulation pump
Relay
Sensor
Monit.
Temperature
Duration
Start. time
Start. time
Function
Description
Demand relay selection
Circulation pump option
Circulation pump relay selection
Disinfection sensor selection
Monitoring period
Disinfection temperature
Disinfection period
Starting delay option
Starting point
Activation / Deactivation
Adjustment range / selection
system dependent
Yes, No
system dependent
system dependent
0 ... 30:1 ... 23 (dd:hh)
45 ... 90 °C [114 ... 194 °F]
0.5 ... 24.0 h
Yes, No
00:00 ... 23:30
Activ., Deactivated
Factory setting
system dependent
No
system dependent
system dependent
01:00 (1 day)
60 °C [140 °F]
1h
No
20:00
Deactivated
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DHW heating
Boiler mode:
If the Boiler mode has been selected, another sensor
can be allocated in the channel Sensor 2. The switchon, or the switch-off conditions respectively, then
have to be fulfilled at both sensors in order for the
relay to be energised.
The DHW heating is used to demand an afterheating
for heating the DHW store.
If the Loading pump option is activated, another
adjustment channel appears, in which a relay can be
allocated to the loading pump. The allocated relay is
switched on and off with the demand relay.
If the Overrun time option is activated, another
adjustment channel appears, in which the overrun
time can be adjusted. If the overrun time option is
activated, the loading pump relay remains switched
on for the adjusted Duration after the demand relay
has been switched off.
For the DHW heating, different modes are available:
Thermal mode:
The allocated demand relay is switched on when the
temperature at the allocated sensor 1 falls below
the adjusted switch-on temperature. If the temperature at the allocated sensor 1 exceeds the adjusted
switch-off temperature, the relay is switched off.
The time frames can be adjusted in steps of 15 minutes. The cursor can be moved along the time line
or 4 . The beginning of a
by pressing buttons
time frame can be determined by pressing button
1 . The end of a time frame can be determined by
pressing button 3 .
When the Timer option is activated, a timer is indicated in which time frames for the function can be
adjusted.
First of all, an overview of the current adjustment is
displayed. For each day of the week there is an overview display. The display can be switched back and
forth between the different days by pressing butor 4 .
tons
In order to adjust the timer, press button 5 .
First the individual days of the week or all days of the
week can be selected. The last menu item after the
list of days is Continue. If Continue is selected, the
Edit timer menu opens, in which the time frames
can be adjusted.
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11
Heating / Opt. functions / Add new function... / DHW heating
adjustment channel
Demand
Loading pump
Relay
Overrun time
Duration
Mode
Sensor 1
Sensor 2
Ton
Toff
Timer
Timer
Description
Demand relay selection
Loading pump option
Loading pump relay selection
Overrun option
Overrun time
Operating mode
Sensor 1
Sensor 2 (only if Mode = Boiler)
Switch-on temperature
Switch-off temperature
Timer option
Timer
Adjustment range / selection
system dependent
Yes, No
system dependent
Yes, No
1 ... 10 min
Boiler, Therm.
system dependent
system dependent
0 ... 94 °C [32 ... 202 °F]
1 ... 95 °C [34 ... 204 °F]
Yes, No
-
Factory setting
system dependent
No
system dependent
No
1 min
Therm.
system dependent
system dependent
40 °C [104 °F]
45 °C [114 °F]
No
-
Days of the week
Day selection
All days, Monday ... Sunday,
Continue
-
Timer
Funct.
Time frame adjustment
Activation / Deactivation
00:00 ... 23:45
Activ., Deactivated
Deactivated
HQM
In the HQM menu, up to seven internal heat quantity measurements can be activated and adjusted.
By selecting the menu item New HQM, a new heat
quantity measurement can be activated.
A menu opens in which all adjustments required for
the heat quantity measurement can be made.
If the Flow rate sensor option is activated, the impulse input or, if available, a Grundfos Direct Sensor™
can be selected. Grundfos Direct Sensors™ are only
available if they have been previously registered in
the In-/Outputs menu. The impulse rate must be adjusted in that menu as well.
If the Flow rate sensor option is deactivated, the
controller calculates the heat quantity by means
of a fixed flow rate value. This is called heat quantity balancing. For this purpose, the flow rate must
be read from the flowmeter at 100 % pump speed
and adjusted in the adjustment channel Flow rate.
In addition to that, a Relay must be allocated. Heat
quantity balancing is in effect whenever the allocated relay is active.
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In the adjustment channel Fluid type, the heat
transfer fluid must be selected. If either Propylene
glycol or Ethylene glycol is selected, the adjustment
channel Ratio is indicated in which the antifreeze ratio of the heat transfer fluid can be adjusted.
When the Alternative unit is activated, the controller will convert the heat quantity into the quantity of
fossil fuels (coal, oil or gas) saved, or the CO2 emission saved respectively. The alternative Unit can be
selected. A conversion Factor must be adjusted for
the calculation. The conversion factor depends on
the arrangement in use and has to be determined
individually.
The heat quantity measurement deleted will disappear from the list and become available for selection
in the New HQM menu again. The numeration of the
other activated heat quantity measurements will not
change.
HQM / New HQM
Adjustment channel Description
Flow sen.
Flow sensor selection
Return sen.
Return sensor selection
Flow rate sen.
Flow rate sensor option
Flow rate sen.
Flow rate
Heat quantity measurements already activated will
appear in the HQM menu above the menu item New
HQM in numerical order.
Relay
Fluid type
Ratio
If an activated heat quantity measurement is selected, the above mentioned menu with all adjustment
values will re-open.
To deactivate a heat quantity measurement, select
the menu item Delete function at the bottom of the
menu.
Alternative unit
Unit
Factor
Funct.
Adjustment range / selection Factory setting
system depensystem dependent
dent
system dependent
system dependent
Yes, No
No
Imp1 ... Imp3, Ga1, Ga2, Gd1,
Flow rate sensor selection
Gd2
Flow rate (only if Flow rate sen. = No) 1.0 ... 500.0 l/min
3.0 l/min
system depenRelay selection
system dependent
dent
Tyfocor LS, Propyl.,
Heat transfer fluid
Water
Ethyl., Water
Glycol ratio in the heat transfer fluid
(only if Fluid type = Propylene glycol 5 ... 100 %
40 %
or Ethylene glycol)
Alternative unit option
Yes, No
No
Alternative display unit
Coal, Gas, Oil, CO2
CO2
Conversion factor
0.01 ... 100.00
0.50
Activation / Deactivation
Activ., Deactivated
Deactivated
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12
Basic settings
13
SD card
In the Basic settings menu, all basic parameters for
the controller can be adjusted. Normally, these settings have been made during commissioning. They
can be subsequently changed in this menu.
Basic settings
Adjustment channel
Language
Auto DST
Date
Time
Temp. Unit
Vol. unit
Press. unit
Energy unit
Factory setting
Description
Selection of the menu language
Daylight savings time selection
Adjustment of the current date
Adjustment of the current time
Temperature unit
Unit of volume
Unit of pressure
Energy unit
back to factory settings
Adjustment range / selection
Deutsch, English, Francais
Yes, No
01.01.2001 ... 31.12.2099
00:00 ... 23:59
°C, °F
Gallons, Litre
psi, bar
Wh, BTU
Yes, No
Factory setting
Deutsch
Yes
01.01.2010
°C
Litre
bar
Wh
No
The controller is equipped with an SD card slot for
SD memory cards.
The following functions can be carried out with an
SD card:
• Logging measurement and balance values. The
values can be opened and visualised on a computer, e. g. in a spreadsheet programme.
• Transferring adjustments and parameterisations
prepared on the computer onto the controller.
• Storing adjustments and parameterisations onto
the SD card and restoring them if necessary.
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Starting the logging
ÎÎ Insert the SD card into the slot
ÎÎ Adjust the desired logging type and interval
Logging will start immediately.
Stop the logging
ÎÎ Select the menu item Remove card...
ÎÎ After Remove card is displayed, remove the
card from the slot
When Linear is adjusted in the adjustment channel
Logging type, data logging will stop if the capacity
limit is reached. The message Card full will be displayed.
If Cyclic is adjusted, the oldest data logged onto the
SD card will be overwritten as soon as the capacity
limit is reached.
Storing controller adjustments
ÎÎ To store the controller adjustments on an SD
card, select the menu item Save adjustments.
While the adjustments are being stored, first Please
wait, then Done! will be indicated on the display.
The controller adjustments are stored as a .SET file
on the SD card.
Note:
To safely remove the SD card, always select
the menu item Remove card... before removing the card.
Loading controller adjustments
ÎÎ To load controller adjustments from an SD card,
select the menu item Load adjustments.
The File selection window is indicated.
ÎÎ Select the desired .SET file.
While the adjustments are being loaded, first Please
wait, then Done! will be indicated on the display.
Formatting the SD card
ÎÎ Select the menu item Format card
The content of the card will be deleted and the card
will be formatted with the FAT file system.
SD card
Note:
Because of the increasing size of the data
packets, the remaining logging time does
not decrease linearly. The data packet size
can increase, e. g. with the increasing operating hours value.
Adjustment channel
Remove card...
Save adjustments
Load adjustments
Logging interval
Logging type
Format card
Description
Safely remove card
Save adjustments
Load adjustments
Logging interval
Logging type
Format card
Adjustment range / selection
00:01 ... 20:00 (mm:ss)
Cyclic, Linear
-
Factory setting
01:00
Linear
-
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14
Manual mode
Note:
Always adjust the operating mode back to
Auto when the control and service work is
completed. Otherwise normal operation
will not be possible.
Manual mode
In the Manual mode menu, the operating mode of
all relays in the controller and in connected modules
can be adjusted.
All relays are displayed in numerical order, first those
of the controller, then those of the individual modules connected. Modules are listed in numerical order.
Under the menu item All relays..., all relays can be
switched off (Off ) or set to automatic mode (Auto)
at once.
Off =Relay is switched off (manual mode)
Auto =Relay is in automatic mode
Adjustment channel Description
Adjustment range / selection
Relays R1 ... X
Operating mode selection
Max, Auto, Min, Off
All relays...
Operating mode selection for all Auto, Off
relays
Factory setting
Auto
Off
The operating mode can be selected for each individual relay, too. The following options are available:
Off =Relay is switched off (manual mode)
Min. =Relay active with minimum speed
(manual mode)
Max. =Relay active at 100 % speed (manual
mode)
Auto =Relay is in automatic mode
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15
User code
In the User code menu, a user code can be entered.
Each number of the 4-digit code must be individually adjusted and confirmed. After the last digit has
been confirmed, the menu automatically jumps to
the superior menu level.
To access the menu areas of the expert level, the expert user code must be entered:
Expert user code:
0262
For safety reasons, the user code should generally
be set to the customer code before the controller is
handed to the customer!
Customer user code: 0000
16
In- / Outputs
16.1
Modules
In this menu, up to 5 external modules can be registered.
All modules connected and acknowledged by the
controller are available.
ÎÎ To register a module, select the corresponding
menu item by pressing button 5
The checkbox indicates the selection. If a module is
registered, all its sensor inputs and relay outputs will
be available in the corresponding controller menus.
In- / Outputs / Modules
Adjustment channel Description
Adjustment range / selection Factory setting
Module 1 ... 5
Registering external modules -
In the In- / Outputs menu, external modules can be
registered, sensor offsets can be adjusted and relay
outputs can be configured.
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16.2
Inputs
In- / Outputs / Inputs
In this submenu, the type of the sensor connected
can be adjusted for each individual input. The following types can be selected:
• Switch
• KTY
• Pt500
• RTA11-M
• Pt1000
• None
ATTENTION!
System damage!
Selecting the wrong sensor type
will lead to unwanted controller
actions. In the worst case, system
damage can occur!
ÎÎ Make sure that the right sensor type is selected!
If KTY, Pt500 or Pt1000 are selected, the channel
Offset appears, in which an individual offset can be
adjusted for each sensor.
ÎÎ In order to select a sensor for the offset adjustment, select the corresponding menu item by
pressing button 5
ÎÎ To adjust the sensor offset, select the desired
value by pressing buttons
or 4 , then confirm by pressing button 5
Adjustment
Description
channel
Adjustment range / selection Factory setting
S1 ... S12
Sensor input selection
-
-
Type
Selecting the sensor type
Switch, KTY, Pt500, RTA11-M,
Pt1000, None
Pt1000
Offset
Sensor offset
-15.0 ... +15.0 K
0.0 K
Imp. 1 ... 3
Impulse input selection
-
-
Type
Selecting the sensor type
Impulse, Switch, KTY, Pt500,
RTA11-M, Pt1000, None
Impulse
Vol./Imp.
Impulse rate
0.1 ... 100.0
1.0
CS10
CS10 input
-
-
Type
CS type
A ... K
E
Offset
Delete offset
Yes, No
No
Ga1, 2
Analog Grundfos Direct SensorTM
-
-
Type
Grundfos Direct SensorTM type
RPS, VFS, None
None
Min.
Minimum pressure (if Type = RPS)
0.0 ... 0.5 bar
0.0 bar
Max.
Maximum pressure (if Type = RPS)
0.1 ... 16.0 bar
0.6 bar
Min.
Minimum flow rate (if Type = VFS)
1 ... 39 l/min
2 l/min
Max.
Maximum flow rate (if Type = VFS)
2 ... 400 l/min
40 l/min
Gd1, 2
Digital Grundfos Direct SensorTM
-
-
Type
Grundfos Direct SensorTM type
RPD, VFD, None
None
if Type = VFD:
Measuring range selection
10 - 200 l/min, 5 - 100 l/min,
2 - 40 l/min, 2 - 40 l/min (fast),
1 - 20 l/min, 1 - 12 l/min*
1 - 12 l/min
* For the Inputs Gd1 and Gd2, the following sensor combinations are possible:
- 1 x RPD, 1 x VFD
- 2 x VFD, but with different measuring ranges only
CS sensor offset
If a CS10 irradiation sensor is to be connected, an
offset has to be carried out before the connection is
made.
To carry out the offset, proceed as follows:
ÎÎ Adjust the CS type in the Type channel
ÎÎ Select the Offset channel
ÎÎ Confirm the reset enquiry with Yes
ÎÎ Select back to return to the Inputs menu, then
connect the CS sensor
Note:
When Grundfos Direct SensorsTM are used, the
sensor ground common terminal block must
be connected to PE (see chap. 2.2).
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16.3
Outputs
In order to reduce the number of switching processes for high-efficiency pumps, the controller is
equipped with a relay overrun function that automatically comes into effect when the speed control
signal is not issued by the relay itself. The corresponding relay will then remain switched on for an hour
after the switch-off conditions are fulfilled.
In this menu, the signal type and the minimum
speed can be adjusted for each individual relay of
the controller and the external modules.
ÎÎ In order to make adjustments for a relay, select
the corresponding menu item by pressing button 5 .
For each relay, the signal type and the minimum
pump speed can be adjusted.
The signal type determines the way speed control of
a connected pump is effected. The following modes
are available:
Adapter = speed control signal via a VBus® / PWM
interface adapter
0-10 V = speed control via a 0-10 V signal
PWM = speed control via a PWM signal
Standard =
pulse packet speed control
(factory setting)
With the signal types Adapter, 0-10 V and PWM, the
relay itself is not involved in speed control. A seperate connection for the corresponding signal will have
to be made (see figure).
In- / Outputs / Outputs
Adjustment channel
R1 ... R13
Signal
Output
Profile
Min speed
Description
Relay output selection
Signal type
PWM output selection
PWM characteristic curve
Minimum speed
Adjustment range / selection
Adapter, 0-10 V, PWM, Standard
17,18,19,20
A,B,C,D,E,F
30 ... 100 %
Factory setting
Standard
A
30 %
If PWM is selected, the channels Output and Profile
appear. In the Output channel, one of the 4 PWM
outputs can be selected. In the Profile channel, a PWM
characteristic curve corresponding with the pump in
use can be selected (see page 75).
S1
R1
S2
Example of the electrical connection of a high-efficiency pump
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16.4
PWM-Profiles
PWM A (e. g. manufacturer WILO)
H
H
max
max
min
min
0
95 100
7 12
0 5
PWM %
85 88 93 100
Solar PM Profile
OEM STANDARD PROFILE
OEM SOLAR PM-Profile
Max Speed
100
90
80
70
60
50
40
30
20
10
0
5
10 15 20 25 30 35 40 45 50 55 60 65 70 75 80
85 90 95 100
100
95
90
85
80
75
70
65
60
55
50
45
40
35
30
25
20
15
10
5
0
Std PWM
0
10
20
30
40
50
60
70
PWM_IN %
PWM %
PWM C (e. g. manufacturer Laing)
80
90
100
PWM_IN 0 t/T [%]
PWM F (e. g. manufacturer Laing)
RPM
RPM
Max rpm
Max rpm
Min rpm
Min rpm
Fin
Fin
Début
No PWM
PWM %
PWM E (e. g. manufacturer Grundfos)
PWM B (e. g. manufacturer Grundfos)
0
Note:
If PWM pumps are used, the lowest adjustment value of the minimum speed cannot
be lower than 20 %. If a Laing pump (PWM
C) is used, the PWM start impulse has to
be higher than 25% to enable a minimum
pump speed of less than 25%.
PWM D (e. g. manufacturer WILO)
20%
Début
duty %
50%
No PWM
50%
duty %
75% 80%
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17
Troubleshooting
If a malfunction occurs, a message will appear on the display of the controller.
WARNING!
Electric shock!
Upon opening the housing, live parts are exposed.
ÎÎ Always disconnect the controller from power supply
before opening the housing!
The controller is protected by a fuse. The fuse holder (which also holds the spare
fuse) becomes accessible when the cover is removed. To replace the fuse, pull the
fuse holder from the base.
fuse
Directional pad flashes red.
The display is permanently off.
Sensor fault. The error code !Sensor fault is
displayed instead of a temperature on the sensor
display channel.
Press button
5
. Display illuminated?
no
Short circuit or line break
Disconnected temperature sensors can be
checked with an ohmmeter. Please check the
resistance values corresponding with the table.
°C °F
Ω
Ω
Ω
Pt500 Pt1000 KTY
°C °F
yes
Controller has been in
standby, everything
o.k.
Ω
Ω
Ω
Pt500 Pt1000 KTY
-10
14
481
961
1499
55
131
607
1213
2502
-5
0
5
10
15
20
25
30
23
32
41
50
59
68
77
86
490
500
510
520
529
539
549
559
980
1000
1019
1039
1058
1078
1097
1117
1565
1633
1702
1774
1847
1922
2000
2079
60
65
70
75
80
85
90
95
140
149
158
167
176
185
194
203
616
626
636
645
655
664
634
683
1232
1252
1271
1290
1309
1328
1347
1366
2592
2684
2778
2874
2971
3071
3172
3275
35
40
45
50
95
104
113
122
568
578
588
597
1136
1155
1175
1194
2159
2242
2327
2413
100
105
110
115
212
221
230
239
693
702
712
721
1385
1404
1423
1442
3380
3484
3590
3695
Check the power supply of the controller. Is it
disconnected?
no
The fuse of the controller could
be blown. The fuse holder (which
holds the spare fuse) becomes
accessible when the cover is removed.The fuse can then be replaced.
yes
Check the supply line and reconnect it.
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Pump is overheated, but no heat transfer from the collector to the store, flow
and return have the same temperature; perhaps also bubbling in the lines.
Air or gas bubbles in the system?
no
yes
Is the collector circuit blocked at
the dirt trap?
yes
Vent the system; increase the
system pressure to a static primary pressure of at least plus
0.5 bar (7.25 psi); if necessary
continue to increase pressure;
switch the pump off and on
for a short time.
Clean dirt trap
Pump starts up very late.
Switch-on temperature difference ∆Ton too large?
no
yes
Non-ideal position of the
collector sensor (e.g. flatscrew
sensor instead of sensor in
immersion sleeves).
yes
Change ∆Ton and
∆Toff correspondingly.
Activate tube collector
function if necessary.
o.k.
Pump starts for a short moment, switches off, switches on again, etc.
The temperature diffrence between store and collector increases enormously during operation; the collector circuit cannot dissipate the heat.
Temperature difference at the
controller too small?
no
yes
Wrong position of collector
sensors?
no
Change ∆Ton and ∆Toff
correspondingly.
no
OK
no
yes
Check / replace it
Heat exchanger calcified?
yes
Plausibility control of
the option tube collector special function
Collector circuit pump
defective?
no
Mount the collector sensor at
solar flow (warmest collector
output); use immersion sleeve
of the respective collector.
yes
Decalcify it
Heat exchanger blocked?
no
yes
Clean it
Heat exchanger too small?
yes
Replace with correctly
sized one.
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The solar circuit pump does not work, although the collector is considerably warmer than the store.
Collector circuit pump runs
during the night?
Display illuminated?
If not, press button 5 . Display illuminated now?
yes
no
Does the pump start up in
manual operation?
no
yes
Is the pump current enabled by
the controller?
no
Stores cool down at night.
no
yes
Check controller
There is no current; check
fuses / replace them and check
power supply.
Collector temperature at night
is higher than the outdoor
temperature.
no
The adjusted temperature
difference for starting the
pump is too high; choose a value which makes more sense.
yes
Is the pump stuck?
yes
Sufficient store insulation?
yes
Check the non-return valves in
the flow and the return pipe for
functional efficiency.
no
Increase insulation.
Insulation close enough to
the store?
yes
yes
no
Replace insulation or increase it.
Turn the pump shaft using a
screwdriver; now passable?
no
Pump is defective - replace it.
Controller might be defective
- replace it.
Are the store connections
insulated?
yes
no
Insulate the connections.
Warm water outflow upwards?
no
yes
Change connection and let the
water flow sidewards or through
a siphon (downwards); less store
losses now?
no
a
yes
o.k.
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a
Does the warm water circulation
run for a very long time?
no
yes
Use the circulation pump with
timer and switch-off thermostat
(energy efficient circulation).
Circulation pump and blocking
valve should be switched-off for
1 night; less store losses?
yes
no
Check the non-return valve in
warm water circulation - o.k.
yes
no
Check whether the pumps of the
afterheating circuit run at night;
check whether the non-return valve is defective; problem solved?
no
Further pumps which are connected to the solar store must also be
checked.
Clean or replace it.
The gravitation circulation
in the circulation line is too
strong; insert a stronger valve
in the non-return valve or an
electrical 2-port valve behind
the circulation pump; the
2-port valve is open when the
pump is activated, otherwise
it is closed; connect pump and
2-port valve electrically in parallel; activate the circulation
again. Deactivate pump speed
control!
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18
Accessories
18.1
Sensors and measuring instruments
V40 flowmeter
The flowmeter V40 is a measuring instrument for
detecting the flow of water or water/glycol mixtures. After a specific volume has passed, the V40 reed
switch sends an impulse to the calorimeter. The heat
quantity used is calculated by the calorimeter using
these impulses and the measured temperature difference with the help of pre-defined parameters (glycol type, concentration, heat capacity, etc.).
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19
Index
A
Afterheating suppression...............................................
Antifreeze, solar optional function.............................
B
Balance values....................................................................
Bypass, solar optional function....................................
C
Chimney sweeper function...........................................
Circulation............................................................................
Collector cooling, cooling mode.................................
Collector emergency temperature.............................
Commissioning menu.....................................................
Controller adjustment, loading of...............................
Controller adjustments, storing of..............................
Cooling mode.....................................................................
CS-bypass.............................................................................
CS-offset...............................................................................
D
Data logging.......................................................................
Day/Night operation, heating circuit.........................
DHW heating......................................................................
Drainback option...............................................................
DT function..........................................................................
E
Error messages...................................................................
Error messages, acknowledgement of......................
External heat exchanger, solar optional function.
F
Flow rate monitoring.......................................................
Flow r. monit., error message........................................
Formatting the SD card...................................................
Function block....................................................................
Fuse, replacing of..............................................................
40
39
31
35
63
54
41
32
12
70
70
41
37
73
70
60
66
44
57
30
30
43
46
30
70
57
76
H
Heat dump........................................................................... 46
Heat exchange................................................................... 52
Heating circuits, internal................................................. 60
Heating demands.............................................................. 60
Heating period thermal disinfection.......................... 65
Heat quantity measurement......................................... 67
I
Irradiation switch............................................................... 59
M
Mains connection................................................................ 7
Manual mode...................................................................... 71
Meas. values........................................................................ 31
Message relay..................................................................... 51
Minimum collector limitation....................................... 32
Mixer, optional arrangement function...................... 49
Modules, registration of.................................................. 72
O
Operating hours counter................................................ 31
Operating mode, relays................................................... 71
P
Parallel relay, optional arrangement function........ 48
Parallel relay, solar optional function......................... 40
Priority logic........................................................................ 33
Progression chart.............................................................. 31
PWM pump speed control............................................. 74
R
Registering external modules....................................... 72
Return preheating............................................................. 56
Room thermostat.............................................................. 61
S
Sensor fault, error message........................................... 30
Solar external heat exchanger...................................... 43
Solid fuel boiler.................................................................. 53
Store cooling, cooling mode......................................... 41
Store loading....................................................................... 50
Store sequence control................................................... 34
Store set temperature...................................................... 33
Summer mode.................................................................... 60
System cooling, cooling mode..................................... 41
T
Target temperature, solar optional function........... 39
Technical data....................................................................... 4
Thermostat function........................................................ 57
Tube collector function................................................... 38
Twin pump........................................................................... 45
U
User code.............................................................................. 72
81
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Notes
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Notes
83
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295931-36390-8667 SOM 8 plus_en.indb 84
tecalor GmbH
Fürstenberger Str. 77 | 37603 Holzminden
Tel. 05531 99068-700 | Fax 05531 99068-712
info@tecalor.de
www.tecalor.de
Irrtum und technische Änderungen vorbehalten | Subject to errors and technical changes! | Sous réserve d‘erreurs et de modifications techniques! · Onder voorbehoud
van vergissingen en technische wijzigingen! | Salvo error o modificación técnica! | Rätt till misstag och tekniska ändringar förbehålls! | Excepto erro ou alteração técnica |
Zastrzeżone zmiany techniczne i ewentualne błędy | Omyly a technické změny jsou vyhrazeny! | A muszaki változtatások és tévedések jogát fenntartjuk! | ВозмоҖность
неточностейи технических изменений не исключается. Stand 10/26
A 295931-36390-8667
B 293404-36172-8645
STIEBEL ELTRON GmbH & Co. KG
Dr.-Stiebel-Str. | 37603 Holzminden
Tel. 05531 702-0 | Fax 05531 702-480
info@stiebel-eltron.de
www.stiebel-eltron.de
20.10.2011 13:15:01
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