Kingspan Temperature differential controller Installation And Operating Instructions Manual
Kingspan Temperature differential controller is an independently installed electronic temperature controller for on-surface installation. Integration into a pump assembly is possible when the technical specifications of the controller are adhered to. The maintenance-free controller is exclusively intended for controlling solar and heating systems.
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Temperature differential controller
5 inputs, 2 outputs
Installation and operating instructions
EN
742.892 | Z01 | 11.50 | Subject to change due to technical improvements!
EN
2
Content
General safety instructions ....................................3
EC declaration of conformity.................................3
1 Proper usage .........................................................4
2 About this manual .................................................4
2.1 Contents ................................................................... 4
2.2 Target audience ........................................................ 4
3.1 Opening / Closing the casing .................................... 5
3.2 Mounting the casing ................................................ 6
3.3 Establishing the electrical connections...................... 7
3.4 Terminal pin assignments ........................................ 10
4 Commissioning the device for the first time .......13
5 Construction ........................................................17
5.1 Casing ..................................................................... 17
5.2 Display .................................................................... 17
6 Operation .............................................................20
6.1 Operating buttons .................................................. 20
6.2 Display when operating .......................................... 20
7 Modes of operation .............................................20
7.1 Changing the mode of operation ........................... 20
7.2 Off mode ................................................................ 21
7.3 Manual mode ......................................................... 21
7.4 Automatic mode ..................................................... 22
8 Settings menu ......................................................23
8.1 Overview ................................................................. 23
8.2 Calling up the settings menu and selecting a menu entry
26
8.3 Setting the time ...................................................... 26
8.4 Setting the system .................................................. 26
8.5 Setting the functions ............................................. 26
8.6 Setting the parameters .......................................... 26
8.7 Setting the priority ................................................. 27
8.8 Resetting to factory defaults ................................... 27
9 Functions ..............................................................28
9.1 Operation ............................................................... 28
9.2 Characteristics ........................................................ 29
9.3 Function descriptions .............................................. 31
10 Parameters ...........................................................43
11 Deinstallation and disposal .................................46
12 Information messages .........................................46
13 Troubleshooting ...................................................46
13.1 General faults ......................................................... 47
13.2 Error messages ....................................................... 48
13.3 Checking the Pt1000 temperature sensors ............. 49
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14 Technical data ......................................................50
14.1 Controller ............................................................... 50
14.2 Cable specifications ................................................ 51
Exclusion of liability .............................................51
Legal guarantee ...................................................51
EN
General safety instructions
• This document is part of the product.
• Use the device only after reading and understanding this document.
• Keep this document in a safe place for the entire service life of the device. Pass this document on to subsequent owners and operators of the device.
• Adhere to all safety instructions. Consult (further) professional personnel in the event of any ambiguities.
• The measures described in this document may only be performed by qualified technical professionals. Exception: End-customers may operate the device when they have previously been trained by a technical professional.
• The solar system can be damaged by improper operation of the device.
• The device must not be connected to the power supply if it has an open or damaged casing.
• The device must not be connected to the mains power supply when:
– the casing is open or damaged.
– cables are damaged.
• Factory labels and markings must never be altered, removed or rendered unreadable.
• Observe the prescribed conditions of use, see Section 14, p. 50.
• This device is not intended for:
– Children
– Persons with physical, sensory or mental impairment
– Persons without sufficient experience or knowledge unless they are instructed in the use of the device, and initially supervised, by a person responsible for their safety.
EC declaration of conformity
This product conforms to the applicable European directives with regard to its design and its operating behaviour. This conformity has been verified. Further information in this regard can be obtained from your dealer.
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1 Proper usage
The temperature differential controller, subsequently referred to as the controller, is an independently installed electronic temperature controller for on-surface installation.
Integration into a pump assembly is possible when the technical specifications of the controller are adhered to.
The maintenance-free controller is exclusively intended for controlling solar and heating systems.
About this manual 2
2.1 Contents
This manual contains all information required by a technical professional for setting up and operating the temperature differential controller.
2.2 Target audience
The target audience of this manual are technical professionals who:
• have the knowledge of terminology and the skills necessary for setting up and operating solar systems.
• have the necessary training, knowledge and experience, and knowledge of the applicable regulations in order to evaluate and recognise the dangers inherent in the following work:
– Installation of electrical equipment
– Production and connection of data communication cables
– Production and connection of mains grid power supply cables
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Installation
Note
The following section describes only the installation of the controller. Follow the instructions of each respective manufacturer when installing external components (collectors, pumps, storage tanks, valves etc.)
3.1 Opening / Closing the casing
3.1.1 Removing the front panel
X Grasp the front panel
by the grooves at the sides
and pull forwards
(Fig. 1).
Fig. 1: Removing the front panel
3.1.2 Mounting the front panel
X
Carefully position the front panel into place.
and then press it onto the casing until it latches
3.1.3 Removing the terminal cover
Danger
Risk of death by electrocution!
• Disconnect the controller from the power supply before removing the terminal cover.
• Make sure that the power supply cannot be unintentionally switched on when the device is open.
1. Remove the screw
(Fig. 1).
2. Remove the terminal cover
.
3.1.4 Mounting the terminal cover
1. Position
the cover.
2. Tighten the screw
to a torque of 0.5 Nm.
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3.2 Mounting the casing
√ The mounting location must satisfy the prescribed conditions of use; more information on this is provided in Section 14, p. 50.
√ The mounting surface is vertical and allows good access for installation.
Danger
Risk of death by electrocution!
• Disconnect the controller from the power supply before opening the casing.
• Make sure that the power supply cannot be unintentionally switched on when the casing is open.
• Do not use the casing as a drilling template.
1. If necessary, remove the terminal cover
2. Screw in the screw for the upper mounting hole
(Fig. 2) until the screw head has a clearance of 5 ... 7 mm from the mounting surface.
3. Hang the controller on the screw by the upper mounting hole and align it vertically.
4. Mark the position of the lower mounting hole
through the casing.
5. Remove the controller and prepare the mounting hole for the lower screw.
6. Hang the controller by the upper mounting hole
and then fasten the screw in the lower mounting hole
.
7. Mount the terminal cover.
6
Fig. 2: Rear side of the controller with the upper
and lower mounting holes
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3.3
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Establishing the electrical connections
Danger
Risk of death by electrocution! Make sure that the following conditions are satisfied when performing the work described in this section:
• All cables leading to the controller must be disconnected from the power supply and it must be ensured that they cannot be unintentionally reconnected during installation.
• Each connection terminal must only be connected to a single conductor.
• The protective earth conductors (PE) from the mains cable and pump and valve cables must be connected to the protective earth conductor terminal block.
• All cables must be laid so that persons cannot stand on them or trip over them.
• The cables must satisfy the requirements listed in Section 14.2, p. 51.
• The local power supply must match the specifications on the type plate of the controller.
• The power supply cable is to be connected to the mains power as follows:
– using a plug connected to a wall mains socket or
– via an isolating mechanism allowing complete isolation in the case of permanent wiring.
• The power supply cable must be laid in conformance to all applicable legal guidelines and regulations of the local electricity supplier.
Caution
Danger of damage and malfunction.
• Connect only components that do not overload the controller inputs and outputs; more information is provided on the type plate and in Section 14, p. 50.
• For outputs
R1 and R2 the following applies:
– Speed control must be deactivated when an external relay is connected.
– The correct pump type must be set (standard/high-efficiency pump).
More information on this is provided in Sections 4, p. 13 and 10, p. 43 (P18, P19).
Notes
• Any connection polarity may be used for the
1 – 5 and R
• Only type Pt1000 temperature sensors may be used.
S
signal inputs and outputs.
• Lay the sensor cables at least 100 mm away from any power supply cables.
• Use shielded sensor cables when inductive sources are present, e.g. high-voltage lines, radio transmitters, microwave devices.
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3.3.1 Position of the connection terminals
8
Fig. 3: Terminal clamps in the lower part of the controller (terminal cover removed)
Power connection terminal block
L
1x phase conductor (mains input)
R1, R2 2x output (TRIAC, for pumps or valves)
X not used
L const.
N
2x phase conductor (outputs, permanent voltage)
4x neutral conductor (common neutral conductors for mains power input and outputs)
Note
Outputs
R1 and R2 are protected by an electronic fuse.
Protective conductor terminal block:
PE
4x protective earth (common protective earth for power connection) terminal block
Signals terminal block:
1 – 4
5
R
S
PWM R1
PWM R2
4x sensor input (Pt1000 temperature sensor)
1x sensor input (Pt1000 temperature sensor or pulse water meter input)
1x signal output (potential-free relay contact for safety extra-low voltage)
2x control output (for PWM-controlled high-efficiency pumps)
7x mass connection (common mass for sensor inputs and control outputs)
Pin strip, for internal use only
Cable openings on the rear side of the casing
Upper strain relief clamps (2 identical plastic links, each with 2 strain relief clamps, supplied in the scope of delivery)
Lower strain relief clamps
Cable openings at the bottom of the casing
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3.3.2 Preparing the cable openings
The cables can be fed through openings in the rear wall of the casing or at the bottom of the casing. The openings are pre-punched and must be prepared as required before installation.
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Prepare the cable openings in the rear wall of the casing as follows:
1. Break out the cable openings (Fig. 3) using a suitable tool.
2. Deburr the edges.
Prepare the cable openings at the bottom of the casing as follows:
1. Cut the required cable openings (Fig. 3) at the left and right using a suitable knife and break them out.
2. Deburr the edges.
3.3.3 Connecting the cables
√ All cables are voltage-free.
√ The cable openings have been prepared.
X
Observe the following points when connecting the cables:
• Connect the cable conductors to the correct terminals as described in Section 3.4, p. 10.
• Mains input and outputs: First connect
PE, then N and L.
• Strain relief:
– First clamp the lower strain relief clamps and then the upper strain relief clamps.
– When using the upper strain relief clamps, use the plastic links as described below.
– If the opening in the strain relief clamp is too large, e.g. in the case of thin cables, turn over the strain relief clamping bar (with the bend facing down).
– Only use the strain relief clamps for cables entering the bottom of the casing.
Use external strain relief clamps when feeding cables through the rear of the casing.
3.3.4 Inserting/Removing plastic links
Insert the plastic links as follows:
1. Insert the right plastic strip with the latching protrusion first
(Fig. 4).
2. Press the other side of the plastic strip down
, until the spring clamp latches into place.
3. Insert the left plastic strip the other way around (latching protrusion to the left, spring clamp to the right).
Fig. 4: Inserting the right plastic link
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Remove the plastic links as follows:
1. Insert a flat-blade screwdriver under the right plastic link between the casing and the spring clamp
,
(Fig. 5).
2. Carefully push the flat-blade screwdriver to the left
. Lever the spring clamp
to the right until the plastic link
is free.
3. Pull out the plastic link upwards by hand
.
4. Remove the left plastic link accordingly.
Fig. 5: Removing the right plastic link
3.4
No system
Terminal pin assignments
For each solar system that can be selected at the controller, the external components
(pumps, valves, temperature sensors) must be connected to particular terminals. The following table provides information on this:
• Graphic and number of the solar system on the controller display. The graphic is only intended to provide an overview and is not a technical drawing.
• Terminal pin assignments of the connected components
Display Legend Terminal layout
Note
No system is used when only the functions are used. When
No system is selected then all inputs and outputs are freely available for use by the functions. More information on this is provided in Section 9, p. 28.
1 storage tank, 1 collector array
T1
T1: Collector array sensor
T2: Lower storage tank sensor
R1: Solar circuit pump
R1
T2
1,
2,
R1, N, PE (PWM R1,
1) )
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Display Legend
1 storage tank with heating return increase, 1 collector array
R1
T1
T3
T2
R2
T4
T1: Collector array sensor
T2: Lower storage tank sensor
T3: Upper storage tank sensor
T4: Sensor heating return increase
R1: Solar circuit pump
R2: Heating return switching valve
3)
1 storage tank with external heat exchanger, 1 collector array
R2
T1
T3
R1
T2
T1: Collector array sensor
T2: Lower storage tank sensor
T3: External heat exchanger sensor
R1: Storage tank loading circuit pump
R2: Solar circuit pump
Terminal layout
1,
2,
3,
4,
R1, N, PE (PWM R1,
R2, N, PE
1)
)
1,
2,
3,
R1, N, PE (PWM R1,
R2, N, PE (PWM R2,
1) )
2) )
1 storage tank with zone loading, 1 collector array
R1
T1
R2
T3
T2
T1: Collector array sensor
T2: Lower storage tank sensor
T3: Upper storage tank sensor
R1: Solar circuit pump
R2: Zone loading switching valve
4)
1,
2,
3,
R1, N, PE (PWM R1,
R2, N, PE
1)
1 storage tank, 2 collector arrays
T1
R1
T2
R2
T3
T1: Collector array 1 sensor
T2: Collector array 2 sensor
T3: Lower storage tank sensor
R1: Solar circuit pump for collector array 1
R2: Solar circuit pump for collector array 2
1,
2,
3,
R1, N, PE (PWM R1,
R2, N, PE (PWM R2,
1) )
2) )
)
2 storage tanks, 1 collector array (pump-controlled)
R1
T1
T2
T1: Collector array sensor
T2: Sensor lower area of storage tank 1
T3: Sensor lower area of storage tank 2
R1: Solar circuit pump, storage tank 1
R2: Solar circuit pump, storage tank 2
R2
T3
1,
2,
3,
R1, N, PE (PWM R1,
R2, N, PE (PWM R2,
1) )
2) )
2 storage tanks, 1 collector array (pump/valve controlled)
R1
T1
R2
T2
T1: Collector array sensor
T2: Sensor lower area of storage tank 1
T3: Sensor lower area of storage tank 2
R1: Solar circuit pump
R2: Storage tank switching valve 5)
T3
1,
2,
3,
R1, N, PE (PWM R1,
R2, N, PE
1) )
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1 swimming pool, 1 collector array
T1
Display Legend
T1: Collector array sensor
T2: Swimming pool sensor
R2: Solar circuit pump
Terminal layout
1,
2,
R2, N, PE (PWM R2,
2) )
R2
T2
1 swimming pool with external heat exchanger, 1 collector array
R1
T1
T3
R2
T2
T1: Collector array sensor
T2: Swimming pool sensor
T3: External heat exchanger sensor
R1: Solar circuit pump
R2: Swimming pool loading circuit pump
1,
2,
3,
R1, N, PE (PWM R1,
R2, N, PE (PWM R2,
1)
)
2) )
1 storage tank, 1 swimming pool, 1 collector array (pump-controlled)
T1
T1: Collector array sensor
T2: Lower storage tank sensor
T3: Swimming pool sensor
R1: Storage tank solar circuit pump
R2: Swimming pool solar circuit pump
R1
T2
R2
T3
1,
2,
3,
R1, N, PE (PWM R1,
R2, N, PE (PWM R2,
1) )
2) )
1 storage tank, 1 swimming pool, 1 collector array (pump/valve controlled)
R1
T1
R2
T2
T1: Collector array sensor
T2: Lower storage tank sensor
T3: Swimming pool sensor
R1: Solar circuit pump
R2: Storage tank switching valve 6)
1,
2,
3,
R1, N, PE (PWM R1,
R2, N, PE
T3
1) )
Tab. 1: Terminal pin assignments
1)
2)
Terminal pin assignments for PWM-controlled high-efficiency pumps: The power supply must be connected to output R1 (N, PE), the control cable for the pump electronics must be connected to
PWM R1 and .
Terminal pin assignments for PWM-controlled high-efficiency pumps: The power supply must be connected to output R2 (N, PE), the control cable for the pump electronics must be connected to
PWM R2 and .
3) Installation regulation: When no power is supplied to the switching valve then no flow occurs
4)
5)
6) through the storage tank.
Installation regulation: When no power is supplied to the switching valve then the lower part of the storage tank (T2) is loaded.
Installation regulation: When no power is supplied to the switching valve then the first priority storage tank (T2) is loaded.
Installation regulation: When no power is supplied to the switching valve then the storage tank
(T2) is loaded.
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Commissioning the device for the first time
Danger
Risk of death by electrocution! Be sure to perform all the measures listed in Section 3 before starting the first commissioning.
Notes
• After commissioning the controller for the first time, it is configured in such a manner that it can be used in most applications without changes.
• After completing the first commissioning, later recommissioning is not necessary.
• The following steps must also be performed after the device has been reset to the factory defaults.
• When power is removed for a longer period of time, after switching on again the clock must be reset (following steps 1 – 5).
Overview
ESC
/
Time
System
The first time the controller is switched on, the following main settings are made blockwise via a guided configuration process (Fig. left):
• Time
• System (hydraulic variant)
• Type (Standard/high-efficiency pump) and minimum speed of the connected pumps (not System 0.1)
• Functions
ESC
/
Pump R1 (R2)
Type / minimum speed
ESC
/
Functions
ESC
/
Values can be subsequently changed during the guided configuration process. The following applies:
• / ESC/ blockwise navigation forwards and back
(Fig. left: = forwards;
ESC/ = back).
• Navigation (with / ESC/) is always possible after completing a block.
• Subsequent modification of a block is started with
SET.
OK
SET
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Commission the controller for the first time as follows:
Setting the time
1. Apply power to the controller.
– The time 12:00 is displayed.
–
12 flashes (Fig. left)
– The backlighting is red.
2. Press to set the hours.
3. Press
SET. The minutes flash.
4. Press to set the minutes.
5. Press
SET.
Selecting a system
6. Press . System 1.1 is displayed, 1.1 flashes (Fig. left).
7. Press to select another system.
8. Press
SET.
If System 0.1 was selected in step 7, proceed with step 20.
Setting pump 1 (output R1)
9. Press . AC and (pump 1) flash (example in fig. left).
14
10.
Caution:
Standard pump: Select
AC!
High-efficiency pump: Select HE!
Press to select the type for pump 1.
11. Press
SET.
12.
Caution:
When selecting HE (high-efficiency pump) pay attention to the pump characteristics.
Only if
HE was selected in step 10:
Press to set the characteristic of the high-efficiency pump; see Tab. 2 and Fig. 6, p. 16.
13. Press
SET.
– If AA or Ab was selected in step 12 then SC is displayed; off, and (pump 1) flash (example in Fig. left;
SC = Speed Control).
– If C was selected in step 12, proceed with step 18 (for 2 pumps) or step 20 (for 1 pump).
14. If required, press to switch on the speed control ( on flashes).
15. Press
SET.
If off was selected in step 14, proceed with step 18 (for 2 pumps) or step 20 (for 1 pump).
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16. min, Value %, and (pump 1) flash.
Press to set the minimum speed of pump 1 in %.
17. Press
SET.
Make the settings for pump 2 (output R2) only if a system with 2 pumps was selected in step 7.
Otherwise continue with step 20.
18. Press .
AC and (pump 2) flash (example in fig. left).
19. Perform steps 10 to 17 accordingly for pump 2.
EN
Setting the function (necessary for System 0.1, set in other systems as required)
20. Press .
F: is displayed.
21. Press SET. F:01 (function number) flashes.
22. Press to select a different function. (Function description in Section 9.3, p. 31)
23. Press
SET. oFF is displayed.
24. Press
SET. oFF flashes.
25. Press . on flashes.
26. Press
SET. The function is activated.
27. Set the characteristics (see Section 9.1, p. 28).
28. Press ESC.
29. Press .
Ok flashes.
Finishing initial commissioning
30. Press SET to finish initial commissioning. After pressing SET the controller adopts the settings, performs a restart and switches to the
Off operating mode.
Or:
Press /
ESC to display the previous settings and adjust them if necessary.
Setting the operating mode
31. Remove the front panel.
32.
Caution
Danger of pump damage if run dry. Only switch the system to manual or automatic mode when the system is filled.
Press and hold the mode button for 2 seconds to change the mode of operation; more information on this is provided in Section 7.
33. Mount the front panel.
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Characteristics of high-efficiency pumps
Display Pump type
AA
High-efficiency pump with a PWM profile for a rising characteristic curve (Fig. 6)
Ab
High-efficiency pump with a PWM profile for a falling characteristic curve (Fig. 6)
C
Characteristic curve
0% PWM: Pump off
100% PWM: Max. pump speed
0% PWM: Max. pump speed
100% PWM: Pump off
Pressure regulated high-efficiency pump –
(no control cable, switching on/off via the supply voltage)
Tab. 2: Characteristics of high-efficiency pumps
RPM RPM
PWM %
PWM %
Fig. 6: Characteristics of high-efficiency pumps with PWM profiles for a rising characteristic curve
(
AA, left) and a falling characteristic curve (Ab, right)
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5 Construction
5.1 Casing
SC400
Fig. 7: Front view of the controller
5.2 Display
5.2.1 Overview
No. Element
Mode front panel)
button (under
Operating buttons: , SET,
ESC,
Display
See section
6.1, 7
6.1
5.2
Front panel 3.1
Terminal cover
Terminal cover fastening screw
3.3.1
1)
–
1)
Section 3.3.1 describes the terminals under the terminal cover.
4
3
1
2
Fig. 8: Overview of the display areas (all elements visible)
System graphics
Settings menu
Pictograms for functions
Operational and setting values
The display areas are described below.
EN
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5.2.2 System graphical symbols
The following table describes the symbols used in the system graphics ( in Fig. 8).
Symbol Description
Pipework
Symbol Description
Pump, switched on
Collector (array) Pump, switched off
3-way valve with flow direction Maximum collector temperature reached
Storage tank Domestic water outlet
Swimming pool
External heat exchanger
Cooler for active cooling
Back-up heating
Temperature sensor Solid fuel boiler
Sufficient solar irradiation available for loading
5.2.3 Settings menu
The settings menu ( in Fig. 8) contains the following entries:
Time
Functions
Priority
System
Parameters
Reset to factory defaults
5.2.4 Pictograms for functions
The following table describes the pictograms used for functions ( in Fig. 8).
Symbol Description
Manual operation
Symbol Description
Holiday - recooling 2)
Pump is speed controlled 1) Alarm output 1)
Stagnation reduction 2) Interval 2)
Frost protection 2)
1) Symbol is visible while the function/parameter is being edited in the settings menu.
2) Symbol flashes: The function is activated and is actively intervening in the control process.
Symbol does not flash: The function is activated and is not actively intervening in the control process or the function is currently being edited in the setting menu.
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5.2.5 Operational and setting values
The display of the operational and setting values ( in Fig. 8) consists of the following elements:
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1 2 3 4 5 6
Symbol for time control of functions. This symbol is displayed when:
• a time restriction / control has been set,
• the status of time restriction/control is displayed,
• the time restriction blocks a temperature control (symbol flashes).
Number of the time window that is currently being set/displayed or within which the current time lies.
The time control of a function consists of 1 to 3 configurable time windows.
Example:
Time window 1 06:00 – 08:00
Time window 2 11:00 – 12:30
Time window 3 17:00 – 19:00
Additional information on, off: Switching state/condition on, off max, min: Maximum value, minimum value
Σ: Summed operational value since first commissioning, cannot be reset
Δ: Summed operational value since last reset to 0
Symbol is displayed when a temperature sensor is selected when setting a function.
Display of:
• Measurements
• Settings
• Error codes
• Additional information, e.g. software version
Physical unit of the value displayed in : °C, K, l/min, %‚ h, kWh, MWh, tCO
2
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6 Operation
This section contains general information on operating the controller.
6.1 Operating buttons
The device is operated using the , ,
SET, ESC and
SET
ESC
buttons as follows:
• Scrolls up through the menu 1)
• Increases the setting value by 1 step
• Scrolls down through the menu 1)
• Decreases the setting vaule by 1 step
• Selects a setting to be changed (setting value flashes)
• Confirms a setting value or jumps one level down in the menu structure 1)
• Calls up the settings menu (not in manual mode)
• Discards an entered setting
• Jumps up by one operating level
Sets the operating mode
1) Exception: Initial commissioning
Note
We recommend that you write down all settings that you have changed.
6.2
7
7.1
Display when operating
• A flashing component in the system graphic means: The displayed operational or setting value applies to the flashing component.
Exception: always flashes in manual mode.
• A flashing symbol is indicated in the figures by .
• Displays that are automatically alternately displayed are shown overlapping in the figures. Example: Figure in Section 7.2, p. 21.
Modes of operation
Changing the mode of operation
Caution
Danger of pump damage if run dry. Only switch the system to manual or automatic mode when the system is filled.
1. Remove the front panel.
2. Press the button for 2 seconds to change the mode of operation.
3. Repeat step 2 if necessary.
4. Mount the front panel.
Off
Manual operation
Automatic
2 s 2 s 2 s
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7.2 Off mode
Functionality
• All outputs are switched off (outputs/control outputs without power, relays open).
• OFF and the software version are displayed alternately.
See example in Fig. below: Software version
St 1.3
• Backlighting is red.
• Settings menu can be called up.
• The
Off mode is preset when the device is delivered.
Operation
X Press and hold the
SET button for 2 seconds to call up the settings menu ( ).
EN
7.3 Manual mode
Functionality
• Backlighting is red, spanner symbol flashes.
• The controller outputs (pumps, valves) can be manually switched. Possible switching states
0: off
1: on
A: Automatic operation as per the settings in the settings menu
• Current temperatures and operating hours can be displayed (status display).
• When changing to manual mode all outputs are switched to A, R1 is displayed.
Exception: First commissioning (all outputs at 0).
• Typical application: Functional test (maintenance), fault-finding.
Operation
You switch the outputs on and off as follows:
1. If necessary, press to select a different output.
2. Press
SET. The switching state flashes.
3. - Press to change the switching state.
4. Press SET to adopt the change.
See in the following Figure (system 1.1 and output
R1 are shown as an example).
You display the current temperatures and operating hours as follows:
1. Press
ESC. The temperature/operating hours are displayed and the associated component flashes ( , display is not illustrated).
2. - Press to select a different component.
3. Press
SET to leave the temperature/operating hours display.
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2
SET
SET
SET
7.4
SET
ESC
SET
33
Automatic mode
Functionality
Automatic is the normal mode of operation and the system is automatically controlled.
The following actions are possible:
• Display status (status display): Display the status of external components (temperatures, switching states, run times).
• Display stored min./max. values (temperature sensors) or sum/difference values (operating hours 1) of the pumps and valves).
Summed values (symbol ∑): Operating hours since first commissioning. Summed values cannot be reset.
Difference values (symbol Δ): Operating hours since the last reset to 0.
• Reset the stored min./max./difference values.
• Call up the settings menu.
1) Summed switch-on times of the outputs
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Operation
√ The controller shows the status display.
You can display the status of external components as follows:
X - Press to display the status of other components ( , shown using system 1.1 as an example).
You can display and reset the stored min./max./difference values as follows:
1. Press as required, in order to display other components ( , component flashes).
2. Press
SET. The min./max./difference values are displayed alternately .
3. If desired, press and hold the SET button for 2 seconds to reset the currently (!) displayed value .
4. Press
ESC. The status display is shown.
5. Repeat steps 1 to 4 if necessary.
You access the settings menu as follows:
X
Press and hold
SET for 2 seconds . The settings menu appears.
4 5
SET
SET
2 s
7
SET
2 s
6
SET
SET
2 s
7
SET
2 s
6
SET
SET
2 s
7
SET
2 s
6
8 Settings menu
8.1 Overview
The following graphic provides an overview of the structure of the settings menu.
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Time
SET
Set time
System
SET
No system – 0.1
1 storage tank,
1 collector array – 1.1
1 storage tank with heating return increase,
1 collector array – 1.2
1 storage tank with external heat exchanger,
1 collector array – 1.3
1 storage tank with zone loading,
1 collector array – 1.4
1 storage tank,
2 collector arrays – 1.5
2 storage tanks,
1 collector array (pump-controlled) – 2.1
2 storage tanks,
1 collector array (pump/valve-controlled) – 2.2
1 swimming pool,
1 collector array – 3.1
1 swimming pool with external heat exchanger,
1 collector array – 3.2
1 storage tank, 1 swimming pool,
1 collector array (pump-controlled) – 4.1
1 storage tank, 1 swimming pool,
1 collector array (pump/valve-controlled) – 4.2
Functions
1)
Circulation – F01
SET
Back-up heating – F02
Solid fuel boiler – F03
Quick charge – F04
Heat quantity – F05
Thermostat – F06
Difference thermostat – F07
Interval – F08
Stagnation reduction – F09
Holiday - recooling – F10
Active cooling – F11
Frost protection – F12
Upper storage tank display – F13
Alarm output – F14
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Parameters
1)
SET
Maximum temperature storage tank 1 – P01
Maximum temperature storage tank 2 – P02
Maximum temperature swimming pool – P03
Switch-on temperature difference solar circuit 1 –
P04
Switch-off temperature difference solar circuit 1 –
P05
Switch-on temperature difference solar circuit 2 –
P06
Switch-off temperature difference solar circuit 2 –
P07
Switch-on temperature difference external heat
exchanger – P08
Switch-off temperature difference external heat
exchanger – P09
Maximum collector temperature – P10
Minimum collector temperature – P11
Switch-on temperature difference
heating return increase– P12
Switch-off temperature difference
heating return increase – P13
Maximum temperature loading circuit – P14
Minimum temperature loading circuit – P15
Loading strategy storage tank 1 – P16
Loading strategy storage tank 2 – P17
Speed control R1 – P18
Speed control R2 – P19
Control of storage tank loading valve – P20
Control of zone loading valve – P21
Control of return increase – P22
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Priority
SET
Storage tank 1 before storage tank 2
Storage tank 2 before storage tank 1
Only storage tank 1
Only storage tank 2
Factory setting
SET for 5 seconds
Reset to factory settings
1) Only specific functions and parameters may be called up depending on the selected system.
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25
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8.2
8.3
8.4
8.5
8.6
Calling up the settings menu and selecting a menu entry
√
Automatic or Off mode is selected.
1. Press and hold SET for two seconds. The settings menu is displayed, menu entry flashes.
2. Press to select a different menu entry.
3. Change the settings as described in the following sections.
Setting the time
√
flashes.
1. Press SET. The hours display flashes.
2. Press to change the hour.
3. Press
SET. The minutes flash.
4. Press to change the minute.
5. Press
SET. The change is adopted.
Setting the system
Note
The systems are described in Section 3.4, p. 10.
√
S yst
flashes.
1. Press
SET. The number of the current system flashes.
2. Press to select another system.
3. Press SET. The change is adopted.
Setting the functions
√
F unc
flashes.
X Continue as described in Section 9, p. 28.
Setting the parameters
Note
Details on the parameters are provided in Section 10, p. 43.
√
P ara
flashes.
1. Press
SET. P:01 (parameter number) flashes.
2. Press to display a different parameter.
3. Press SET. The value of the parameter is displayed, associated components flash in the system graphics.
4. Press SET. The parameter value flashes.
5. Press to change the value.
6. Press
SET to adopt the change.
7. Press ESC. The parameter number is displayed (flashing).
8. If necessary, repeat steps 2 – 7.
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8.7
8.8
EN
Setting the priority
Functionality
The priority determines the sequence in which the storage tanks are loaded (only for systems with more than 1 storage tank). If the higher priority storage tank (first-priority storage tank) cannot be loaded because the collector temperature is too low then the lower priority storage tank (second-priority storage tank) is loaded 1) . The following values can be selected:
-1-: Only storage tank 1 is loaded.
-2-: Only storage tank 2 is loaded.
1-2: Storage tank 1 is the first-priority storage tank.
2-1: Storage tank 2 is the first-priority storage tank.
1)
Every 30 minutes, the controller checks to see if the first-priority storage tank can be loaded.
Due to the warming of the collector array this check can take several minutes. On the basis of the heating process, the controller predicts whether it is possible to load the first-priority storage tank in a foreseeable period of time.
Operation
√
P rio
flashes.
1. Press SET. The current value flashes.
2. - Press to change the priority. The system graphics change accordingly.
3. Press SET. The change is adopted.
Resetting to factory defaults
√
flashes,
RESEt is displayed (RE and SEt alternately).
1. Press and hold SET for 5 seconds.
2. After a brief progress display, ok is displayed and the reset is finished.
3. Continue as described in Section 4, p. 13.
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9 Functions
9.1 Operation
Displaying the functions
The following information is visible when the functions are displayed:
• Function number, e.g.
F:01 (Fig. left)
• Switching state:
–
on: Function is activated
–
off: Function is deactivated (Fig. left)
Note
If neither on nor off are displayed then the function cannot be used. Possible causes:
• The set system does not allow the use of this function.
• All outputs are used.
You display the functions as follows:
√
F unc
flashes.
1. Press
SET. F:01 flashes.
2. - Press to display the next function.
Activating the function
A function must be activated (activation = on) and all the associated characteristics must be correctly set before it can be used. If a function is activated and then exited before the characteristics are set then oFF flashes briefly (Fig. left). After this, the function is displayed with a switching state of off (function is deactivated).
You activate a function as follows:
√ Function number flashes.
1. Press
SET. The function is selected.
2. Press SET. oFF flashes.
3. - Press. on flashes.
4. Press SET. The function is activated.
5. Set the characteristics as described below.
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Setting the characteristics
The functions have different numbers of characteristics. The characteristic values are always set via the same sequence of operating steps.
You set the values of characteristics as follows:
√ The function has been activated as described previously.
1. - Press to select a characteristic.
2. Press
SET. The value of the characteristic is displayed, the associated components flash in the system graphics.
3. - Press to change the value.
4. Press
SET to adopt the change.
5. Repeat steps 1 to 4 for the other characteristics.
6. Press
ESC when all characteristics of the function have been set. The function number flashes.
9.2 Characteristics
The main characteristics for the functions are described below. The figures show examples.
Output
When a function should control an output, instead of the factory setting
R- (= no output; Fig. left), one of the outputs R1,
R2 or R
S
must be selected. Only free outputs are displayed for selection.
Temperature control
When a function is to be temperature controlled, the temperature control must be switched on ( tc = temperature control). In the figure, the temperature control is switched off ( off).
Input
When a function requires a temperature sensor, a sensor input must be selected instead of the factory setting. The factory setting is " –“ (no input; Fig. left).
All sensor inputs are displayed for selection. A single sensor input can be simultaneously used by several functions.
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Switch-on temperature difference
If a function contains a differential thermostat then the switchon temperature difference can be set. The relevant sensor symbols flash.
Switch-off temperature difference
If a function contains a differential thermostat then the switchoff temperature difference can be set. The relevant sensor symbols flash.
Switch-on temperature
If a function contains a thermostat then the switch-on temperature can be set. The relevant sensor symbol flashes.
Switch-off temperature
If a function contains a thermostat then the switch-off temperature can be set. The relevant sensor symbol flashes.
Time control
If a function is to be time controlled then the time control must be activated and the time windows must be set ( cc = clock control). In the Fig. at the left the time control is switched off
( off).
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Starting time of a time window
When setting the start time of a time window, the following is displayed to the left of the start time (see Fig. left):
•
• Number of time window 1 ... 3, whose start time is to be set
(in this case: 1)
• on
End time of a time window
When setting the end time of a time window, the following is displayed to the left of the end time (see Fig. left):
•
• Number of time window 1 ... 3, whose end time is to be set
(in this case:
1)
• off
Note
The start time always lies before the end time! When an attempt is made to set a start time that is later than the end time, the end time is automatically adjusted.
9.3 Function descriptions
The tables in this section describe the function characteristics as follows:
• The rows contain the characteristics in the same sequence as they appear on the display.
• The columns contain the following information, from left to right:
Column Description
Display
Characteristic min., max., factory default setting
Sample display when setting the characteristics.
Designation of the characteristics and their interdependence.
Dependent characteristics can only be selected and set when the higher level characteristic has the value on. This is shown as follows:
• Higher-level characteristic: bold text
• Dependent characteristics: indented to the right below the higher level characteristic
Example: In the table for the circulation function, the sensor input, switch-on temperature and switch-off temperature characteristics are only displayed when the temperature control is set to on.
Lower (min.) and upper limit (max.) of a characteristic range and the factory setting. When a value range only contains a few values then these are individually listed. Example: on, oFF.
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9.3.1 Circulation
Switches a circulation pump on and off on a temperature and/or time controlled basis.
Temperature control: If the temperature in the circulation return falls below the
T on
T off
value, then the circulation pump is switched on until the
temperature is reached.
Time control: The circulation pump is switched on when the current time lies within one of 3 configurable time windows.
Temperature and time control: The circulation pump is switched on when the switch-on conditions for the temperature and time control are satisfied.
Note
Install the circulation sensor at least 1.5 m away from the storage tank to avoid false measurements due to heat conduction of the pipes.
Display Characteristic
Activation
Output (circulation pump)
Pump type (
R1, R2 only)
Pump characteristic ( HE only)
Temperature control
Sensor input for circulation return temperature sensor
Switch-on temperature T on
Switch-off temperature T off
Time control
Time window 1 start/end
Time window 2 start/end
Time window 3 start/end
min.
max.
on, oFF free output R1/R2/R
S
AC, HE
1)
AA, Ab, C (see page p. 16) on, oFF
1 ... 5
0 °C
T on
+ 2 K on, off
T off
– 2 K
95 °C
0:00
0:00
0:00
23:59
23:59
23:59
Factory setting
oFF
–
AC
– oFF
–
30 °C
35 °C off
6:00/8:00
12:00/13:30
18:00/20:00
1)
Caution:
Standard pump: Set
AC!
High-efficiency pump: Set
HE!
External relay: Set
AC pump type!
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9.3.2 Back-up heating
Performs temperature-dependent switching of an output for heating a storage tank using an oil or gas burner. The function can be time restricted.
Temperature control: If the temperature in the storage tank falls below the
T on
value, then the external heating is switched on until the
T off
temperature is reached.
Time restriction: The function is executed when the current time lies within one of 3 configurable time windows.
Display Characteristic
Activation
Output (external heating)
Pump type ( R1, R2 only)
Pump characteristic (
HE only)
Sensor input for readiness part of the storage tank
Switch-on temperature T on
Switch-off temperature T off
Time restriction
Time window 1 start/end
Time window 2 start/end
Time window 3 start/end
min.
max.
on, oFF free output
R1/R2/R
S
AC, HE 1)
AA, Ab, C (see page p. 16)
1 ... 5
0 °C
T on
+ 2 K on, oFF
T off
– 2 K
95 °C
0:00
0:00
0:00
23:59
23:59
23:59
Factory setting
oFF
–
AC
–
–
55 °C
60 °C oFF
6:00/8:00
12:00/13:30
18:00/20:00
1)
Caution:
Standard pump: Set
AC!
High-efficiency pump: Set
HE!
External consumer (e.g. 230 V relay): Set
AC pump type.
9.3.3 Solid fuel boiler
Controls a pump in order to heat a storage tank using a solid fuel boiler.
The pump is switched on when all of the following conditions are satisfied at the same time:
• The temperature difference between the solid fuel boiler and the storage tank exceeds
T diff on
.
• The solid fuel boiler temperature lies above the min. solid fuel boiler
temperature.
• The storage tank temperature lies below the max. storage tank
temperature.
The pump is switched off when one the following conditions is satisfied:
• The temperature difference between the solid fuel boiler and the storage tank drops below
T diff off
.
• The solid fuel boiler temperature drops below the min. solid fuel
boiler temperature.
• The storage tank temperature reaches the max. storage tank tem-
perature.
Speed control of the pump can be activated as required. The loading strategy of the speed control system attempts to regulate the temperature of the solid fuel boiler to match the control target that has been set.
The control target should be at least 10 K above the minimum temperature of the solid fuel boiler.
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Display Characteristic
Activation
Output (pump)
Pump type ( R1, R2 only)
Pump characteristic (
HE only)
Speed control ( R1, R2 only)
Minimum speed (
AC only)
Minimum speed (
HE + AA only)
Minimum speed (
HE + Ab only)
Sensor input for storage tank temperature
Sensor input for solid fuel boiler temperature
Switch-on temperature difference
T diff on
Switch-off temperature difference
T diff off
Max. storage tank temperature
min.
max.
on, oFF free output
R1/R2/R
S
AC, HE 1) 2)
AA, Ab, C (see page p. 16)
30% on, oFF 2)
100%
0% 100%
0% 100%
1 ... 5
1 ... 5
T diff off
+ 2 K
0 K
0 °C
20 K
T diff on
– 2 K
150 °C
Factory setting
oFF
–
AC
– oFF
50%
25%
75%
–
–
6 K
3 K
60 °C
Min. solid fuel boiler temperature 30 °C 95 °C 50 °C
1)
2)
Control target for solid fuel boiler temperature (Speed control = on)
0 °C 95 °C 60 °C
Caution:
Standard pump: Set
AC!
High-efficiency pump: Set
HE!
Caution:
External consumer (e.g. 230 V relay): Set AC pump type and set the speed control to oFF!
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9.3.4 Quick charging
Uses a higher loading temperature to load the the upper region of the storage tank more quickly in order to provide early prevention of backup heating by the conventional heating system. To do this, the loading strategy of the first-priority storage tank is changed from differential loading to absolute temperature loading as soon as the temperature in the upper tank region drops below
T on
*)
. At the same time, an attempt is made to achieve a higher temperature in the storage tank by using the speed control.
*) To retain the proven quick charging functionality , when T of T off
is changed in parallel.
on
is changed the value
Note
To use the quick charge function, the speed control must be switched on; more information on this is provided in Section 10, p. 43 (P18, P19).
Display Characteristic
Activation
Sensor input for upper storage tank temperature
Switch-on temperature T on
Switch-off temperature T off
min.
on, oFF
1 ... 5
max.
0 °C
T on
+ 2 K
85 °C
T on
+ 10 K
Factory setting
oFF
–
50 °C
52 °C
9.3.5 Heat quantity
Calculates the acquired heat volume based on the following information:
• Supply temperature
• Return temperature
• Flow rate volume determined via calculations based on the pump speed or by pulse water meter measurements (terminal
5).
Note
Calculation based on the pump speed cannot be performed when No system (system 0.1) has been selected.
• Glycol proportion and accounting for the temperature dependent thermophysical properties of the heat transfer fluid
Additional possibility: Display of the amount of CO
2 system. The amount of CO
2
saved by using the
is calculated from the acquired heat volume.
To do this, the controller requires the conversion factor g
CO2 be entered.
/kWh therm
to
Display Characteristic
Activation
Type of flow rate acquisition min.
max.
on, oFF tyP 1, tyP 2 1)
Factory setting
oFF
–
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Type 1: Flow rate value at max. speed F max.
(pump 1).
When the Fig. at the left is displayed (value flashes) then enter the value read from the flow rate display.
Type 1: Flow rate value at min. speed F min.
(pump 1).
When the Fig. at the left is displayed (value flashes) then enter the value read from the flow rate display.
Type 1: Flow rate value at max. speed F max.
(pump 2) 2)
Type 1: Flow rate value at min. speed F min.
(pump 2) 2)
Type 2: Flow rate of the pulse water meter in litres/pulse; see the pulse water meter data sheet.
F
F min.
0.0 l/min min.
99.9 l/min
F max.
99.9 l/min
0.0 l/min F max.
1L, 10L, 25L
0.0 l/min
0.0 l/min
0.0 l/min
0.0 l/min
–L
(no flow rate value selected)
Glycol proportion
Supply sensor input (warm)
Return sensor input (cold)
CO
2
display
0%
1 ... 5
1 ... 5 on, oFF
60% 40%
–
– oFF g
CO2
/kWh therm
1 999 218 3)
1) tyP 1: Calculation of the flow rate from the pump speed. To do this, the displayed flow rate values are entered at two measuring points (pump speed min. and max.). tyP 2: Determining the flow rate using a pulse water meter. The flow rate of the pulse water meter in litres/
2) impulse is entered.
Only for systems with 2 pumps. Enter the displayed flow rate values at F max.
/F min.
in the same manner as with
3) type 1, pump 1.
Source: Erneuerbare Energien in Zahlen – Nationale und internationale Entwicklung (Renewable energy sources in figures - national and international development), p. 20, as of: June 2010; Federal Ministry for the Environment, Nature Conservation and Nuclear Safety (BMU)
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9.3.6 Thermostat
Switches an output on and off, depending on the temperature range of any desired sensor. The function can be time restricted and is set for heating or cooling as follows:
Heating: The T on
value is set lower than T off
.
When the sensor temperature drops below T on until the temperature exceeds T off
Cooling: The T on
.
, the output is switched on
value is set higher than T off
When the sensor temperature exceeds T on until the temperature drops below T off
.
.
, the output is switched on
Time restriction: The function is executed when the current time lies within one of 3 configurable time windows.
Note
The T on
value can be set to the same value as T setting has no practical application.
off
. However, this
Display Characteristic
Activation
Output
Pump type (
R1, R2 only)
Pump characteristic ( HE only)
Sensor input
Switch-on temperature T on
Switch-off temperature T off
Time restriction
Time window 1 start/end
Time window 2 start/end
Time window 3 start/end
min.
max.
on, oFF free output R1/R2/R
S
AC, HE
1)
AA, Ab, C (see page p. 16)
1 ... 5
0 °C 180 °C
0 °C 180 °C on, oFF
0:00
0:00
0:00
23:59
23:59
23:59
Factory setting
oFF
–
AC
–
–
20 °C
20 °C oFF
00:00/00:00
00:00/00:00
00:00/00:00
1)
Caution:
Standard pump: Set
AC!
High-efficiency pump: Set
HE!
External consumer (e.g. 230 V relay): Set
AC pump type!
9.3.7 Differential thermostat
Switches an output on and off as follows – time restricted and depending on the set temperature difference between 2 selectable sensors:
When the temperature difference exceeds T diff on
, the output is switched on until the temperature difference drops below T diff off
. In addition to this, the discharging of the heating source can be limited to a particular temperature range (T src min.
/T src max.
) and the loading of the heating target can be limited to a maximum value (T sink max.
within one of 3 configurable time windows.
).
Time restriction: The function is executed when the current time lies
Speed control of the pump can be activated as required. The loading strategy of the speed control system attempts to regulate the temperature difference to match the switch-on temperature difference that has been set.
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Display Characteristic
Activation
Output
Pump type ( R1, R2 only)
Pump characteristic (
HE only)
Speed control ( R1, R2 only)
Minimum speed (
AC only)
Minimum speed (
HE + AA only)
Minimum speed (
HE + Ab only)
Heat source sensor input
Heat sink sensor input
Switch-on temperature difference
T diff on
Switch-off temperature difference
T diff off
Heat source max. temperature
T src max.
min.
max.
on, oFF free output
R1/R2/R
S
AC, HE 1) 2)
AA, Ab, C (see page p. 16)
30% on, oFF 2)
100%
0% 100%
100% 0%
1 ... 5
1 ... 5
T diff off
+ 2 K 80 K
T
0 K src min.
+ 2 K
T diff on
– 2 K
180 °C
Factory setting
oFF
–
AC
– oFF
50%
25%
75%
–
–
6 K
3 K
100 °C
Heat source min. temperature
T src min.
0 °C T src max.
– 2 K 0 °C
Heat sink max. temperature T sink max.
0 °C 95 °C 60 °C
1)
2)
Time restriction
Time window 1 start/end
Time window 2 start/end
Time window 3 start/end
0:00
0:00
0:00 on, oFF
23:59
23:59
23:59 oFF
00:00/00:00
00:00/00:00
00:00/00:00
Caution:
Standard pump: Set
AC!
High-efficiency pump: Set
HE!
Caution:
External consumer (e.g. 230 V relay): Set AC pump type and set the speed control to oFF!
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9.3.8 Interval
Display
Periodically switches the solar circuit pump on and off in order to measure the actual collector temperature. The delay between 2 switch-on operations and the switch-on duration can be set. Applications:
• Collector types where the mechanical construction prevents the temperature from being measured at a suitable place
• Unsuitable position of the temperature sensor on the collector
The function can be time restricted to prevent unnecessary periodic operation at night.
Characteristic
Activation
Time window start/end
Wait time
min.
max.
00:00
1 min on, oFF
23:59
999 min
Factory setting
oFF
08:00/19:00
15 min
Switch-on duration 3 s 999 s 5 s
9.3.9 Stagnation reduction
Delays the end of the storage tank's loading phase in order to reduce, or even to avoid, the system standstill (stagnation) times at high temperatures. To do this, the pump is stopped repeatedly, and only briefly switched on again at high collector temperatures. Since the efficiency drops heavily at high collector temperatures, the loading takes longer and possible stagnation occurs later.
Note
This function cannot be activated in systems with swimming pools.
Display Characteristic
Activation min.
on, oFF
max.
Factory setting
oFF
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9.3.10 Holiday - recooling
Attempts to reduce, or even to avoid, the system standstill (stagnation) times at high temperatures. To do this, at night the storage tank – or the second-priority storage tank if 2 storage tanks are present – is discharged as far as possible to the set minimum temperature, if the storage tank temperature during the day was 10 K below the set maximum temperature.
Stagnation occurs when not enough hot water is removed form the system during an absence (holiday).
Notes
The following applies to this function:
• Only activate if you intend to be absent for an extended period.
• Deactivate this after returning from a holiday in order to avoid an unnecessary waste of energy via the collector circuit.
• This function cannot be activated in systems with swimming pools.
Display Characteristic
Activation
Minimum storage tank temperature
min.
max.
0 °C on, oFF
95 °C
Factory setting
oFF
35 °C
9.3.11 Active cooling
Switches an additional cooler into the solar circuit when one of the following conditions is satisfied:
• The temperature of the storage tank – or of the second-priority storage tank in the case of 2 storage tanks – lies 10 K below the set maximum temperature.
• Holiday recooling is performed at night.
Application examples: Areas with strong solar irradiation, avoidance of stagnation.
Display Characteristic
Activation
Output (switching-in of additional cooler)
min.
max.
on, oFF free output
R1/R2/R
S
Factory setting
oFF
–
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9.3.12 Frost protection
Attempts to prevent freezing of the collectors by pumping heat from the first-priority storage tank into the collectors:
• The collector temperature is below +5 °C: Solar circuit pump is switched on.
• The collector temperature is above +7 °C: Solar circuit pump is switched off.
The frost protection function is only useful when the heat transfer fluid contains insufficient or no anti-freeze. It is recommended to generally use heat transfer fluid with anti-freeze!
Caution
Despite the frost protection function being activated, the solar system can freeze under the following conditions:
• The first-priority storage tank is unloaded, a back-up heating system is not present.
• Heat transfer fluid contains insufficient or no anti-freeze.
• Power outage
• Unsuitable position of the temperature sensor on the collector
• Collector sensor or cable is broken or has a short.circuit.
• The collectors are installed in a position exposed to the wind.
• Solar circuit pump is faulty.
Display Characteristic
Activation min.
on, oFF
max.
Factory setting
oFF
9.3.13 Upper storage tank display
Shows the temperature in the upper region of 1 or 2 storage tanks. For this, an appropriate sensor must be connected to each tank. The measured temperatures are not used for control purposes.
Display Characteristic
Activation
Storage tank 1 upper sensor input
Storage tank 2 upper sensor input 1)
1) Only for systems with 2 storage tanks
min.
on, oFF
1 ... 5
1 ... 5
max.
Factory setting
oFF
–
–
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9.3.14 Alarm output
Activates the set output in the case of the following faults:
• Sensor fault due to short-circuit or interruption
• Clock loses the current time due to an extended power outage.
• Volume flow fault: Er: 1 1)
• The electronic overload switch or fuse has triggered:
Er: 3 ...
Er: 6 1)
Display Characteristic
Activation
Output
Control
min.
max.
on, oFF free output R1/R2/Rs norm, InV
2)
Factory setting
oFF
– norm
1) More information is provided in Section 13.2, p. 48.
2) norm = normal: Contact closes when a fault occurs.
InV = inverted: Contact opens when a fault occurs.
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10 Parameters
Note the following when setting parameters:
• Observe the operating data of the solar components used.
• The individual parameters are only displayed and can be changed when this is permitted by the type of solar system that has been set.
Special case: System
0.1 has no parameters, no P is displayed.
• In most applications the controller can be used without modifying any parameters.
More information is provided in the Functionality column.
The figures in this section show examples.
EN
Display Parameter
Maximum temperature storage tank 1
min.
0 °C
Maximum temperature storage tank 2
0 °C
max.
95 °C
95 °C
Functionality
Factory setting
60 °C
60 °C
When the maximum temperature is exceeded, no more loading occurs until the temperature drops to 3 K below the set value.
Maximum temperature swimming pool
10 °C 45 °C 30 °C
Switch-on temperature difference solar circuit 1
T
P05
+ 2 K
Switch-off temperature difference solar circuit 1
0 K
50 K
T
P04
– 2 K
Switch-on temperature difference solar circuit 2
T
P07
+ 2 K
Switch-off temperature difference solar circuit 2
0 K
50 K
T
P06
– 2 K
Switch-on temperature difference external heat exchanger
T
P09
+ 2 K
Switch-off temperature difference external heat exchanger
0 K
50 K
T
P08
– 2 K
8 K
4 K
8 K
4 K
When the switch-on temperature difference between collector and storage tank is reached, the storage tank is loaded.
Loading ends when the switch-off temperature difference is reached.
6 K
3 K
When the switch-on temperature difference between the secondary side of the external heat exchanger and the storage tank is reached, the storage tank is loaded.
Loading ends when the switch-off temperature difference is reached.
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Display Parameter
Maximum collector temperature
Minimum collector temperature
min.
T
P11
+ 20 K
0 °C
max.
180 °C
T
P10
– 20 K
Functionality
Factory setting
130 °C When the maximum collector temperature is exceeded, no more loading occurs until the temperature drops to 3 K below the set value.
0 °C Load only starts when the minimum collector temperature is exceeded.
Switch-on temperature difference heating return increase
Switch-off temperature difference heating return increase
Maximum temperature loading circuit
Minimum temperature loading circuit
Loading strategy storage tank 1
Control target of differential temperature loading ( dIFF)
Control target of absolute temperature loading ( AbS)
Loading strategy storage tank 2
Control target of differential temperature loading ( dIFF)
Control target of absolute temperature loading (
AbS)
T
T
P13
P15
+ 2 K
0 K
+ 20 K
0 °C dIFF
2 K
0 °C
2 K
0 °C
2) dIFF
2)
T
50 K
P12
130 °C
T
P14
– 20 K
, AbS
– 2 K
50 K
95 °C
, AbS
50 K
95 °C
6 K
3 K
The heating return increase is switched on (switching valve on) when the switch-on temperature difference between the storage tank and heating return temperature is reached.
When the switch-off temperature difference is reached, the heating return increase is switched off.
100 °C The difference between P14 and the temperature of the secondary side of the heat exchanger controls the solar circuit pump and the storage tank loading pump. 1)
0 °C
3)
8 K
60 °C
3)
8 K
60 °C
The storage tank loading pump is only switched on when the secondary side of the heat exchanger is greater than or equal to
P15.
The loading strategy depends on the storage tank system used and the usage of the system.
diff: Highest efficiency. The control target is the temperature difference between the collector and the storage tank. 4)
AbS: Useful when the system requires particular temperatures, e.g. to avoid switching on the external back-up heating system.
The control target is the temperature of the collector. 4)
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Display
EN
Parameter min.
max.
Pump type
R1
Pump characteristic (
HE only)
Speed control
(
R1, R2 only)
Minimum speed
(
AC only)
Minimum speed
( HE + AA only)
Minimum speed
( HE + Ab only)
Pump type
R2
Pump characteristic (
HE only)
Speed control
(
R1, R2 only)
Minimum speed
(
AC only)
Minimum speed
(
HE + AA only)
Minimum speed
(
HE + Ab only)
Control of the storage tank loading valve
AC, HE
AA, Ab, C (see p. 16)
30% on, oFF
100%
0% 100%
0% 100%
AC, HE
AA, Ab, C (see p. 16)
30% on, oFF
100%
0%
0%
100%
100% norm, InV
Control of the zone loading valve norm, InV
Control of the return increase norm, InV
Functionality
75%
AC
– oFF
50%
25%
75% norm
Factory setting
AC
– oFF
50%
25%
Caution
Danger of malfunctions in the controller or damage to the components.
HE must be set when using a high-efficiency pump and
AC must be set when using a standard pump!
Set speed control to oFF when an external relay is connected or speed control is not wanted. norm norm norm (normal) must be set when the valve has been installed according to the installation instructions in Section 3.4, p. 10.
InV (inverted) must be set when the valve has been installed in a different way compared to the installation instructions.
Tab. 3: Parameters
1) When the secondary side of the heat exchanger reaches 3 K below
P14, the solar circuit pump is switched off. At 10 K below P14 the solar circuit pump is switched on again.
When the secondary side of the heat exchanger reaches
P14, the storage tank loading pump is
2) switched off. Below
P14, the storage tank loading pump is switched on again.
diFF is defined as a fixed value for swimming pools.
3) The factory setting depends on the system that has been set.
4) The pump speed is adjusted accordingly to achieve the control target.
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11
12
Deinstallation and disposal
Danger
Risk of death by electrocution!
• Disconnect the device from the power supply before opening the casing.
• All work on an open device must be performed by professional personnel.
1. To dismantle the controller, follow the installation instructions in the reverse order; see Section 3, p. 5.
2. Dispose of the device in accordance with the local regulations.
Information messages
Display Description
The maximum collector temperature has been reached, the solar circuit pump in the respective solar circuit has been switched off.
The symbols in the status display flash when the temperature of the respective collector is selected
The maximum collector temperature has been reached, the solar circuit pump in the respective solar circuit has been switched off.
is shown in the status display when the temperature of the respective collector is not selected.
The maximum storage tank temperature has been reached.
The symbols in the status display flash when the temperature of the respective collector is selected.
13 Troubleshooting
Warning
Risk of death by electrocution!
• Immediately disconnect the device from the mains supply when it can no longer be operated safely, e.g.in the case of visible damage.
• Disconnect the device from the mains power before opening the case.
• All work on an open device must be performed by professional personnel.
Note
The controller is a quality product, conceived for years of continuous trouble-free operation. Observe the following points:
• Faults are often caused by connected components and not by the controller.
• The following notes on fault identification indicate the most common causes of faults.
• Only return the controller when you are absolutely sure that none of the problems listed below is responsible for the fault.
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13.1 General faults
Display Possible cause Remedy
Controller not functioning at all
Display empty/ dark
Controller power supply is interrupted.
• Check the controller power cable.
• Check the fuse for the power supply.
Controller constantly displays 12:00
12 flashes Controller power supply was interrupted for longer than 15 minutes.
Set the time.
Solar circuit pump not operating + switch-on condition is fulfilled
Pump power supply is interrupted.
Check the pump power cable.
EN
Pump has seized up.
• The maximum storage tank temperature has been reached.
• The maximum collector temperature has been reached.
• In multi storage tank systems: The system has stopped due to a priority test.
• The minimum collector temperature has not been reached.
• The maximum loading temperature has been reached.
• Stagnation reduction is activated and is actively intervening in the control process.
• The storage tank has been deactivated in the priority settings.
flashes Pump has been switched off in manual mode (off).
Get the pump working again, replace if necessary.
No fault
• No fault
• Switch to automatic mode if necessary.
Solar circuit pump is operating + switch-on condition not fulfilled
flashes
• The following functions are activated and are actively intervening in the control process:
– Interval function
– Holiday function
– Anti-freeze function
• Blockage protection for the pumps is being performed.
Pump has been switched on in manual mode (on).
• No fault
• Deactivate the relevant function, if necessary.
• No fault
• Switch to necessary.
automatic mode if
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Solar circuit pump is operating + switch-on condition is fulfilled but no heat transport in the solar circuit (no heat transfer fluid circulation)
Air is in the solar circuit.
The isolating valve is closed.
Check the solar circuit for air.
Check the isolating valve.
Limescale or contamination in solar circuit Clean the solar circuit (flush).
Solar circuit pump shows cycle behaviour
Temperature difference too small
Collector sensor incorrectly positioned
Adjust temperature difference in the Parameters settings menu.
Check the position of the collector sensor and correct if necessary.
Tab. 4: General faults
13.2 Error messages
When an error message is displayed and no button has been pressed for 5 minutes, the backlighting turns red and starts flashing.
The figures in this section show examples.
Display Description
An interruption was detected at the displayed sensor input (in this case: sensor input 2).
Remedy
Check the cable and sensor connected to the sensor input.
A short-circuit was detected at the displayed sensor input (in this case: sensor input 2).
Check the cable and sensor connected to the sensor input.
The controller has detected a flow rate fault in the primary or secondary circuit. A permanently high temperature difference exists between the heat source and loading target.
Primary and secondary circuit pumps are flashing. Possible causes:
• Air in system
• The isolating valve is closed.
• The pump is faulty.
The controller has detected faulty operation of the system. This is probably caused by swapped collector connections.
• Bleed air from the system.
• Check the isolating valve.
• Check the pump.
Check the collector connections.
A short-circuit exists at output
R1, the pump connected to output
R1 flashes.
Possible causes:
• The pump is faulty.
• Wiring fault
• Check the pump.
• Check the wiring to R1.
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Output
R1 is overloaded, the pump connected to output
R1 flashes.
Cause: The permissible values for R1 specified on the type plate have been permanently exceeded, the output has been switched off.
A short-circuit exists at output R2, the pump connected to output
R2 flashes.
Possible causes:
• The pump is faulty.
• Wiring fault
Output R2 is overloaded, the pump connected to output been switched off.
R2 flashes.
Cause: The permissible values for R2 specified on the type plate have been permanently exceeded, the output has
Check the electrical data of the pump, replace pump if necessary.
R1 is automatically switched on again.
• Check the pump.
• Check the wiring to
R2.
Check the electrical data of the pump, replace pump if necessary.
R2 is automatically switched on again.
Tab. 5: Error messages
13.3 Checking the Pt1000 temperature sensors
Warning
Risk of death by electrocution! Before opening the device, make sure that all cables leading to the device have been disconnected from the mains power and cannot be unintentionally reconnected to the mains power.
1. Remove the terminal cover.
2. Disconnect the temperature sensor.
3. Measure the resistance of the temperature sensor with an ohmmeter and compare with the following table. Small deviations are acceptable.
4. Mount the terminal cover.
Temperature – Resistance assignments
Temperature [°C]
Resistance [Ω]
-30
882
-20
922
-10 0 10 20 30 40 50 60 70
961 1000 1039 1078 1117 1155 1194 1232 1271
Temperature [°C]
Resistance [Ω]
80 90 100 110 120 130 140 150 160 170 180
1309 1347 1385 1423 1461 1498 1536 1573 1611 1648 1685
Tab. 6: Temperature-resistance assignment with Pt1000 temperature sensors
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14 Technical data
14.1 Controller
Inputs/outputs
Rated voltage (system voltage)
Own consumption
Outputs R1, R2
Quantity
Type
Switching current
Voltage
115 ... 230 V~, 50/60 Hz
≤ 0.8 W, two Pt1000 temperature sensors connected
2
TRIAC
1.1 (1.1) A each
115 ... 230 V~, 50/60 Hz
Signal inputs/outputs
Signal inputs 1 ... 5
Quantity
Type of signal inputs 1 ... 4
Type of signal input 5
5
Pt1000 (temperature acquisition)
• Pt1000 (temperature acquisition) or
• pulse water meter using 1 l/pulse, 10 l/pulse or
25 l/pulse (flow rate acquisition)
Signal output R
S
Type
Max. contact load
Signal outputs PWM R1, PWM R2
Type
Max. load
Hydraulic schemes (systems)
potential-free NO contact
1 (0) A, 24 V
PWM, 250 Hz, 11 V
10 mA
11 Quantity
Display
Type
Application conditions
Degree of protection
Protection class
Ambient temperature
Physical specifications
Dimensions L x W x H
Weight
Software class
Type of action
Type of fastening for permanently connected cables
Degree of pollution
Ball pressure test temperature
Overvoltage category
I
LCD display with backlighting
IP 22, DIN 40050 [without front panel: IP 20]
0 ... +50 °C, when wall-mounted
110 x 160 x 51 mm
350 g
A type 1.Y
type X
2 casing pan: 125 °C other casing parts: 75 °C class II (2500 V)
Tab. 7: Technical controller data
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14.2 Cable specifications
Mains cable
Mains cable type
External diameter of mantle
Conductor cross-section single strand (solid) fine strand (with core end sleeves)
Diameter of the internal strain relief
Signal cable
Sensor cable length
Sensor extension cable design cross-section of each conductor
H05 VV-... (NYM…)
6.5 mm to 10 mm
≤ 2.5 mm
≤ 1.5 mm
2
2
6.5 mm to 10 mm
≤ 100 m, including extension twisted-pair conductors for lengths > 10 m
0.75 mm 2
1.50 mm 2
for lengths < 50 m
for lengths > 50 m
Tab. 8: Cable specifications
Exclusion of liability
The manufacturer can neither monitor the compliance with this manual nor the conditions and methods during the installation, operation, usage and maintenance of the controller. Improper installation of the system may result in damage to property and, as a result, to bodily injury.
Therefore, the manufacturer assumes no responsibility and liability for loss, damage or costs which result from or are in any way related to incorrect installation, improper operation, incorrect execution of installation work and incorrect usage and maintenance.
Similarly, we assume no responsibility for patent right or other right infringements of third parties caused by usage of this controller.
The manufacturer reserves the right to make changes to the product, technical data or installation and operating instructions without prior notice.
Legal guarantee
In accordance with German statutory regulations, there is a 2-year legal guarantee on this product for the customer.
The seller will remove all manufacturing and material faults that occur in the product during the guarantee period and affect the correct functioning of the product. Natural wear and tear does not constitute a malfunction. No legal guarantee can be offered if the fault can be attributed to third parties, unprofessional installation or commissioning, incorrect or negligent handling, improper transport, excessive loading, use of improper equipment, faulty construction work, unsuitable construction location or improper operation or use. Legal guarantee claims shall only be accepted if notification of the fault is provided immediately after it is discovered. Guarantee claims are to be directed to the seller.
The seller must be informed before guarantee claims are processed. For processing a guarantee claim an exact fault description and the invoice / delivery note must be provided.
The seller can choose to fulfil the legal guarantee either by repair or replacement. If the product can neither be repaired nor replaced, or if this does not occur within a suitable period in spite of the specification of an extension period in writing by the customer, the reduction in value caused by the fault shall be replaced, or, if this is not sufficient taking the interests of the end customer into consideration, the contract is cancelled.
Any further claims against the seller based on this guarantee obligation, in particular claims for damages due to lost profit, loss-of-use or indirect damages are excluded, unless liability is obligatory by law.
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Key features
- 5 inputs, 2 outputs
- Large, backlit LCD display
- Easy to install and operate
- Suitable for controlling solar and heating systems
- Time function
- Manual, automatic and off modes
- Reset to factory defaults function
