Solareg II BASIC Solar thermal controller Operating manual
Below you will find brief information for Solareg II BASIC. This device is a microcontroller-controlled temperature difference controller for solar thermal systems. It is designed for use in dry rooms as well as residential, business and commercial applications. It features an intuitive operating menu with graphic symbols and four operating buttons, adjustable values, integrated operating hours counter for storage tank charging, solar circuit pump RPM control or switching control, extensive functions for system monitoring, storage of all values even during a prolonged mains power supply outage, various protective functions, and generous wiring space.
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Operating manual
Solareg II BASIC
Microcontroller-controlled temperature difference controller for solar thermal systems
Explanation of the graphic symbols
Attention!
Symbol indicates possible dangers and errors
Attention 230V~ voltage!
Symbol indicates risks posed by lethally high voltages.
List
Please note!
Information for handling / special features
Implementation / procedure
Test / check
Content
1 Application area / device features
1.1 Application area
1.2 Device features
2 Safety instructions
3 Mounting the device
3.1 Opening the device
3.2 Wall mounting
3.3 Connections
3.4 Temperature sensor connection
4 Short descriptions and device operation
4.1 Display layout
4.2 Operating the device
5 Menu structure
5.1 "Info" menu
5.2 "Programming" menu
5.3 "Manual operation" menu
5.4 "Basic Setup" menu
6 System diagram
Controller functions
7.1 General controller functions
7.1.2 RPM control
7.2 Protective functions
7.2.1 Collector protection
7.2.2 Recooling (Holiday function)
7.2.3 System protection
8 System monitoring
8.1 Sensor monitoring
8.2 Flow monitoring
9 Troubleshooting
9.1 Faults with error messages
9.2 Faults without error messages
10 SOLAREG II Specifications
11 Resistance table PT1000
12 Warranty conditions
13 Declaration of conformity
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1 Application area / device features
1.1 Application area
The SOLAREG II BASIC controllers are high-performance microprocessor-controlled units for controlling the functions of solar thermal systems. The SOLAREG II BASIC perfectly controls solar power systems equipped with one collector and one storage tank.
The controllers are designed for use in dry rooms as well as residential, business and commercial applications. Prior to commissioning the device, make sure to verify that the intended use complies with the applicable regulations.
1.2 Device features
The SOLAREG II generation of controllers is equipped with the following features:
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Intuitive operating menu with graphic symbols and four operating buttons
Adjustable values
Integrated operating hours counter for storage tank charging
Solar circuit pump RPM controll or switching controll
Extensive functions for system monitoring that display symbols to indicate errors and faults
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Storage of all values even during a prolonged mains power supply outage
Various protective functions, such as system protection, collector protection, recooling and flow monitoring
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Generous wiring space
Available accessories:
Temperature sensor PT1000
Sensor connection box
Immersion sleeves
2 Safety instructions
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Solar power systems can reach high temperatures. Such temperatures pose a risk of burns! Exercise caution when installing the temperature sensors!
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Always completely disconnect the device from the operating voltage before performing installation or wiring work on the electrical equipment.
Never mix up the connections of the protective low voltage areas (sensor, flow sensor) with the 230V connections. Otherwise, the device will be destroyed. The device and the connected sensors may carry deadly voltages.
Mount the SOLAREG II controller in a position where it will not be subjected to excessive operating temperatures (> 50°C) by any external heat sources.For safety reasons, the system may only remain in manual operation for testing purposes. In this operating mode, the system does not monitor for maximum temperatures and sensor functions. If there is any recognisable damage to the controller, cables or the connected pumps and valves, the system must not be started.
All installation and wiring work must only be carried out on the controller when the device is disconnected from the power supply.
The SOLAREG II must only be connected and commissioned by qualified personnel. In doing so, the applicable safety regulations must be observed.
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The controller must only be installed in dry and non-explosive areas. Mounting the controller on an inflammable surface is prohibited
3 Mounting the device
3.1 Opening the device
Prior to opening the device, make sure to disconnect the mains voltage and ensure that it cannot be switched back on again. The upper part of the housing is locked to the lower part using two latches. Pull the side pieces (cover plates) of the upper part of the housing outwards (see picture) to unlatch it and upwards until the cover plate is opened.
Prior to switching on or commissioning the device: make sure to close the cover until both sides securely lock into place!
3.2 Wall mounting
The device is mounted on the marked points. A drilling template is provided with the device. Insert the "Quick Info" card provided with the device into the pocket provided on the back of the device. The "Quick Info" card provides the user with an overview of the functions to facilitate rapid device operation.
3.3 Connections
The following points must be followed for the 230V connections:
◼ In case of a fixed mains connection, there must be a switch installed outside the controller that can disconnect the device from the mains power supply. This switch is not required if the mains supply is connected using a cable and an earthed mains plug.
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The controllers are designed to operate using a 230V/50Hz. The pumps and valves to be connected must be designed for this voltage!
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All protective conductors must be connected to terminals marked with PE.
The neutral conductor terminals (N) are electrically connected and are not switched!
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The switching output (A1) is electronic 230V~ N/O contact. If potential-free contacts are required, the appropriate corresponding accessories are available.
3.4 Temperature sensor connection
The SOLAREG II BASIC devices use PT1000 precision platinum temperature sensors.
2 sensors are required, the third sensor is optional.
Mounting / wiring the temperature sensors:
◼ Mount the sensors on the collector and the storage tank. Ensure proper heat transfer and use heat-conducting paste if necessary.
◼ Cross-sections for cable extensions (shielded):
- up to 15m 2 x 0.5mm
2 ,
- up to 50m 2 x 0.75mm
2
.
The shield is connected to the earth (PE)
◼ Connect the temperature sensors according to the system diagram. The polarity of both conductors for the temperature sensors is irrelevant.
◼ Sensor cables must be laid separately from 230V wires.
◼ Sensor connection boxes equipped with surge protection should be used for collector sensors and cable extensions.
4 Short descriptions and device operation
4.1 Display layout
During actual operation, these symbols are only displayed for selection once depending on the menu position.
Display symbols
All possible display symbols are shown below.
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Active menu in the menu levels
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Allocation of the current display
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Current measured values, times or controller states: herr 59.6C°.
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Measuring point
dTmin max start stop
F
% ok?
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Controller state/messages
5
6
pressed.
The display illuminates when any button is
4.2 Operating the device
The SOLAREG II controller is convenient and easy to operate using four operating buttons. Using the operating buttons, you can:
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Access display values
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Perform device settings
The graphic display symbols allow you to easily navigate through the operating structure.
The operating buttons have the following functions:
Operating buttons
Function
"Up"
„+“
"Scroll left"
"Exit"
"Cancel"
"Access"
"Down"
"-"
"Scroll right"
"Select"
"Confirm"
Description
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Increase menu items
Value change: increases the displayed value by 1; when the button is held longer, the value increases continuously
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Scroll left in the main menu
Exit a menu
Exit a menu item
Cancel a value change without storing it
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Access a main menu,
Decrease menu items
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Value change: decreases the displayed value by 1; when the button is held longer, the value decreases continuously
Scroll right in the main menu
Select a menu item
Confirm a value change and store it
The number of displayed values depends on the activated additional functions.
5 Menu structure
5.1 "Info" menu
The following measured and yield values are displayed in the Info menu:
Display e.g.
75 °C min
12 °C max
105 °C
52 °C min
40°C max
67 °C
60 °C
1234 h
Meaning
Displays current collector temperature
Displays minimum collector temperature can be reset to the current temperature
Displays maximum collector temperature can be reset to the current temperature
Displays current storage tank temperature
Displays minimum storage tank temperature can be reset to the current temperature
Displays maximum storage tank temperature can be reset to the current temperature
Displays the current temperature - S3
Operating hours for charging storage tank
Can be reset to 0 h
Can be reset
No
Yes
Yes
No
Yes
Yes
No
Yes
5.2 "Programming" menu
The operating parameters are displayed and can be changed, if necessary, in the
Programming menu. The preset values generally ensure fault-free system operation.
Display e.g.
max
65 °C
Meaning
Value range
15 –95°C
Typical setting
65°C
Current setting
dT max
7K dT min
3K min
100
12
Storage tank:
Maximum permissible temperature
Storage tank:
Switch-on difference
Storage tank:
Switch-off difference
Set the minimum pump capacity using the RPM control 100% =
RPM control off
3 –40K
2 –35K
7K
3K
30% – 100% 100%
5.3 "Manual operation" menu
Automatic operation is switched off during manual operation. The outputs can be manually switched on and off for servicing and testing purposes.
Once the menu has been exited or after 8 hours, automatic operation is reactivated.
Display Meaning
Manually switching on / off the switching output A1 (pump 1)
Value range
0 = Off
1 = On
5.4 "Basic Setup" menu
The hydraulic diagrams and additional functions are displayed in the Basic Setup menu. Settings must only be changed by a specialised technician. Settings may only be adjusted in the menu: a) within one minute after the device has been switched on or b) after simultaneously pressing the buttons:
Display
Line Value
0 0
Meaning
Collector protection function
1
2
3
0
Recooling function
(only if the collector protection is on)
40°C
Recooling temperature
0 = Off
1 = On
0 = Off
110 –150°C 120°C
0 = Off
1 = On
30 –90°C
0 = Off
40°C
Current setting
Settings and changes in this menu must only be carried out by a specialised technician. Incorrect settings can damage or adversely affect the function of the solar power system.
Settings and changes in this menu must only be carried out by a specialised technician. Incorrect settings can damage or adversely affect the function of the solar power system.
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6 System diagram
1 collector, 1 storage tank
S1
A1
S3
S2
PE
L
N
A1
N
Fuse
230V connections
L Mains phase
N
A1
Neutral conductor - mains and outputs
Solar circuit pump (switching output 1)
Sensor connections
S1 Collector sensor
S2
S3
Lower storage tank
General temperature point
S3
S2
S1
Controller functions
7.1 General controller functions
The controller compares the temperatures of the various measuring points and optimally charges the storage tank. If the collector temperature exceeds the storage tank temperature, the solar circuit pump is switched on. Monitoring and protection functions ensure safe operation.
7.1.2 RPM control
The output A1 can be operated using an RPM control.
„Programming“ menu
Display
min
100
Meaning Value range Typical setting
Set the minimum pump capacity using the RPM control
100% = RPM control off
30% – 100% 100%
7.2 Protective functions
The controller is equipped with the following protective functions.
7.2.1 Collector protection
If the storage tank has reached the set maximum temperature and the collector temperature exceeds the set collector protection temperature (line 1), the solar circuit pump is switched on. The solar circuit pump is switched off once the collector temperature is 10K below the maximum value.
In this case, the storage tank is charged up to 95°C regardless of the set maximum temperature.
7.2.2 Recooling (Holiday function)
The collector protection function is only effective if the storage tank temperature is below the temperature limit (95°). Therefore, during the holiday period, for example, the storage tank is discharged at night to the set recooling temperature.
Make sure not to activate this function together with the backup heating!
"Basic Setup" menu
Display Meaning
Line Value
0
1
2
3
0
120
°C
0
40°C
Switches on or off the collector protection function
Temperature at which the collector protection function is activated
Switches on or off the recooling function (only if the collector protection is on)
Temperature to which the storage tank is recooled once the collector protection function is activated
Value range Factory set-
0 = Off
1 = On
110 –150°C
0 = Off
1 = On
30 –90°C
ting
0 = Off
120°C
0 = Off
40°C
Settings and changes in this menu must only be carried out by a specialised technician. Incorrect settings can damage or adversely affect the function of the solar power system.
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7.2.3 System protection
If the collector temperature exceeds the collector protection temperature (see
7.2.2) by 10K, the solar circuit pump is switched off to protect the system components.
If the collector temperature drops below the collector protection temperature, the solar circuit pump is switched on.The function is always activated.
8 System monitoring
If an error occurs, the flashing symbol is generally displayed.
8.1 Sensor monitoring
The connected sensors and sensor cables are monitored for interruptions and short-circuits. Errors are indicated by the symbol. You can find the error source by scrolling up or down the Info menu.
8.2 Flow monitoring
The controller is programmed to display a message if the flow is interrupted, e.g. pump fault or if vapour is in the system. This message, however, does not switch off the pump.
"Basic Setup" menu
Display
+
Meaning
No circulation in the solar circuit
9 Troubleshooting
System faults are distinguished into two general categories:
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Faults that are automatically detected by the controller and therefore can be displayed using error messages
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Faults that the controller cannot detect
9.1 Faults with error messages
Error indication in the display
Possible causes
Flashing
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Sensor cable is interrupted
Defective sensor
Measures
Check cable
Flashing
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Short-circuit in the sensor cable
Defective sensor
Check sensor resistance and replace sensor if necessary
Check cable
Check sensor resistance and replace sensor if necessary
Check wiring
Circulation error:
No flowSFlb
+
Flashing
Additional display for energy yield
measurement:
SFlb
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Error in the pump connection
Defective pump
Air in the system
Defective flow meter
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Defective connection to the flow meter
Sensor cable is interrupted
Defective sensor
Replace pump
Deaerate the system
Check whether the flow meter impeller moves freely when the system is running (if visible)
Check cable
Check cable
Check sensor resistance and replace sensor if necessary
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Faults that affect the
230V/A mains power supply must only be remedied by a specialist!
9.2 Faults without error messages
Faults and malfunctions that cannot be displayed as well as possible causes and their error source can be identified using the following table. If you cannot remedy the fault using the description below, contact the supplier or installer.
Problem
Display does not function
Possible causes
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230V mains voltage not available
Defective fuse inside the device
Measures
Switch on or connect controller
Check the connection's main fuse
Check the fuse*, replace with a new type
2A/T, if necessary.
Check the 230V components for short-circuits
Contact the supplier
Exit "Manual" operation.
Outputs are not switched on
"Pump" symbol rotates, but the pump is not on
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Temperature display strongly fluctuates at short intervals
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Defect device
Controller is in manual operation
Switch-on condition is not satisfied.
Connection to the pump interrupted.
Pump is blocked.
No voltage present at the switching output.
Sensor cables are installed near the 230V cables
Long sensor cables extended without shielding
Defect device
Wait until switch-on condition is satisfied.
Check the cable leading to the pump
Free the pump
Contact the supplier.
Relocate sensor cables, shield sensor cables
Shield sensor cables
Contact the supplier
10 SOLAREG II Specifications
Housing
Material
Dimensions L x W x D in mm, weight
Protection class
Electrical specifications
Operating voltage
Radio interference level
Max. cable cross-section
230V connections
Temperature sensor / temperature range
Testing voltage
Output Voltage
Power - switching output
Fuse protection
Miscellaneous
Operating temperature
Storage temperature
Humidity
100% recyclable ABS housing for wall mounting
175 x 134 x 56; approx. 360 g
IP20 according to DIN 40050, IEC 529, VDE
0470, EN 60529
AC 230 Volts, 50Hz, -10 – +15%
N according to VDE 0875
2.5 mm² fine-wire/single wire
PT1000
1 kΩ at 0°C, -25°C - 200°C
4 kV 1 min according to EN 60730/DIN, VDE
0631, IEC 60664/IEC
230V~
1A / approx. 230VAfor cos φ = 0,7-1,0
Fine-wire fuse 5 x 20mm, 2A/T
(2 amperes, delayed-action fuse)
0 – 50°C
-10 – +65°C max. 60 %
11 Resistance table PT1000
The temperature sensors can be checked for proper function using the following temperature resistance table and an ohmmeter:
Temperature in °C
-30
-20
-10
0
10
20
30
40
50
Resistance in Ohm
882
921
960
1000
1039
1077
1116
1155
1194
Temperature in °C
60
70
80
90
100
120
140
200
Resistance in Ohm
1232
1271
1309
1347
1385
1461
1535
1758
Subject to change in accordance with technical advances!
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12 Warranty conditions
The SOLAREG II controllers are carefully produced and tested on an automatic testing station. If any failures occur, first check if there are any operation / setting or system errors. Furthermore, check the pump and temperature sensor connections.
PROZEDA GmbH provides a 2-year warranty starting at the date of purchase and according to the following conditions.
a) The warranty comes into effect if the purchased good exhibits a material or quality defect. If the defect is caused by improper handling, by exceeding the permitted values stated in the specifications, improper wiring, invalid technical modifications to the device performed by the buyer or by an another company other than PROZEDA GmbH, the warranty shall be void.
b) The warranty requires a written notice that describes the defect in detail as well as a copy of the customer invoice.
PROZEDA GmbH can choose to fulfil the guarantee, at its own discretion, by one of the following measures
- Repair (reconditioning) or
- Delivery of a fully functional replacement product
The device shall be repaired within 1 month after PROZEDA GmbH has received it.
If the device is not repaired within the two repairs attempts, the buyer is entitled to delivery of a fully functional replacement product.
If a replacement product is delivered, a new warranty that corresponds to these conditions shall come into effect.
c) Any further warranty (redhibitory action, reduction of price) is excluded.
Warranty claims may only be submitted by the customer and are non-transferable.
If a defect occurs during the warranty period, please contact the supplier / installer.
When returning the device for warranty service, please make sure to send a description of the error and, if possible, the system diagram along with the wiring diagram.
13 Declaration of conformity
We, Prozeda GmbH, declare under our sole responsibility that the SOLAREG type
1316 product complies with the following standards:
DIRECTIVE 2004/108/EC OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL of 15 12.2004 on the approximation of the laws of the Member States relating to electromagnetic compatibility and repealing Directive 89/336/EEC
Law on the electromagnetic compatibility of equipment (EMC) of 26 February 2008
DIRECTIVE 2006/95/EC OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL of
12 December 2006 on the approximation of the laws of the Member States concerning electrical equipment for use within certain voltage limits
DIN EN 61326-1, VDE 0843-20-1:2006-10 Electrical measurement, control and laboratory use - EMC requirements - Part 1: General requirements (IEC 61326-1:2005);
German version EN 61326 -1:2006
DIN EN 61326-2-2, VDE 0843-20-2-2:2006-10 Electrical measurement, control and laboratory use - EMC requirements - Part 2-2: Particular requirements - Test, operating conditions and performance requirements for portable test, measurement and monitoring equipment for use in low voltage power supply systems (IEC 61326-2-
2:2005); German version EN 61326-2-2:2006
Operating manual for SOLAREG II BASIC 1316BED001-20B-E, Stand 02/2009

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Key features
- Microprocessor-controlled
- Intuitive operating menu
- Adjustable values
- Solar circuit pump RPM control
- System monitoring
- Protective functions