Prozeda Solareg II ENERGY User manual

Microcontroller-controlled temperature difference controller for solar thermal systems
Operating manual
Solareg II ENERGY

2
Content
1 Application area / device features 3
1.1 Application area 3
1.2 Device features 3
2 Safety instructions 3
3 Mounting the device 4
3.1 Opening the device 4
3.2 Wall mounting 4
3.3 Connections 5
3.4 Temperature sensor connection 5
4 Short descriptions and device operation 5
4.1 Display layout 5
4.2 Operating the device 6
5 Menu structure 6
5.1 "Info" menu 6
5.2 "Programming" menu 7
5.3 "Manual operation" menu 7
5.4 "Basic Setup" menu 8
6 System diagram 9
Controller functions 10
7.1 General controller functions 10
7.1.2 RPM control 10
7.1.3 Independent controller 10
7.1.4 Tube collector or start function 11
7.2 Protective functions 11
7.2.1 Collector protection 11
7.2.2 Recooling (Holiday function) 11
7.2.3 System protection 12
7.3 Additional function 12
7.3.1 Energy yield measurement 12
8 System monitoring 12
8.1 Sensor monitoring 12
8.2 Flow monitoring 12
9 Troubleshooting 13
9.1 Faults with error messages 13
9.2 Faults without error messages 14
10 SOLAREG II Specications 15
11 Resistance table PT1000 15
12 Warranty conditions 16
13 Declaration of conformity 16
Explanation of the
graphic symbols
Attention!
Symbol indicates
possible dangers
and errors
Attention 230V~
voltage!
Symbol indicates
risks posed by
lethally high volt-
ages.
List
Please note!
Information for
handling / special
features
Implementation /
procedure
Test /
check

3
1 Application area / device features
1.1 Application area
The SOLAREG II ENERGY controllers are high-performance microprocessor-con-
trolled units for controlling the functions of solar thermal systems. The SOLAREG II
ENERGY 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:
Intuitive operating menu with graphic symbols and four operating buttons◼
Adjustable values◼
Integrated operating hours counter for storage tank charging◼
Start function for systems equipped with tube collectors◼
Integrated energy yield measurement◼
(optional, only in conjunction with the yield measurement set)
Solar circuit pump RPM controll or switching controll◼
Extensive functions for system monitoring that display symbols to indicate er-◼
rors and faults
Storage of all values even during a prolonged mains power supply outage◼
Various protective functions, such as system protection, collector protection,◼
recooling and ow monitoring
Generous wiring space◼
Available accessories:
Temperature sensor PT1000◼
Yield measurement set (incl. tube sensor)◼
Sensor connection box◼
Immersion sleeves◼
2 Safety instructions
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, ow
sensor) with the 230V connections. Otherwise, the device will be destroyed. The
device and the connected sensors may carry deadly voltages.
Solar power systems can reach high temperatures. Such temperatures pose a◼
risk of burns! Exercise caution when installing the temperature sensors!
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.

4
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.
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.
The controller must only
be installed in dry and
non-explosive areas. Mounting
the controller on an inflammable
surface is prohibited
Prior to switching on or
commissioning the device:
make sure to close the cover until
both sides securely lock into
place!

5
3.3 Connections
The following points must be followed for the 230V connections:
◼In case of a xed 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.
The controllers are designed to operate using a 230V/50Hz. The pumps and◼
valves to be connected must be designed for this voltage!
All protective conductors must be connected to terminals marked with PE.◼
The neutral conductor terminals (N) are electrically connected and are not◼
switched!
The switching outputs (A1/A2) are electronic 230V~ N/O contact. If potential-◼
free contacts are required, the appropriate corresponding accessories are avail-
able.
3.4 Temperature sensor connection
The SOLAREG II ENERGY devices use PT1000 precision platinum temperature sen-
sors. 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 0.5mm2,
- up to 50m 2 x 0.75mm2.
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.
Active menu in the menu levels◂
Allocation of the current display◂
Current measured values, times or control-◂
ler states: herr 59.6C°.
Measuring point◂
Controller state/messages◂
Display symbols
All possible display symbols are
shown below.
ok?
hPa
start
%
stopdTmin max
F

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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:
Access display values◼
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 Description
"Up"
„+“
Increase menu items◼
Value change: increases the displayed
value by 1; when the button is held longer,
the value increases continuously
"Scroll left"
"Exit"
"Cancel"
Scroll left in the main menu◼
Exit a menu◼
Exit a menu item◼
Cancel a value change without storing it◼
"Access"
"Down"
"-"
Access a main menu,◼
Decrease menu items
Value change: decreases the displayed◼
value by 1; when the button is held longer,
the value decreases continuously
"Scroll right"
"Select"
"Conrm"
Scroll right in the main menu◼
Select a menu item◼
Conrm a value change and store it◼
5 Menu structure
5.1 "Info" menu
The following measured and yield values are displayed in the Info menu:
Display
e.g. Meaning Can be reset
75 °C Displays current collector temperature No
min
12 °C
Displays minimum collector temperature can
be reset to the current temperature
Yes
max
105 °C
Displays maximum collector temperature can
be reset to the current temperature
Yes
52 °C Displays current storage tank temperature No
min
40°C
Displays minimum storage tank temperature
can be reset to the current temperature
Yes
max
67 °C
Displays maximum storage tank temperature
can be reset to the current temperature
Yes
25 °C Displays the current temperature - S3 No
55 °C
Displays the current temperature storage
thermostat No
The display illuminates
when any button is
pressed.
The number of displayed
values depends on the
activated additional functions.

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Display
e.g. Meaning Can be reset
60 °C
Displays the current temperature collector
return line
nein
1234 h
Operating hours for charging storage tank
Can be reset to 0 h
Yes
927 kWh Energy yield for storage tank
Can be reset to 0 kWh 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. Meaning Value range
Typical
setting
Current
setting
max
65 °C
Storage tank:
Maximum permis-
sible temperature
15–95°C 65°C
dT max
7K
Storage tank:
Switch-on dier-
ence
3–40K 7K
dT min
3K
Storage tank:
Switch-o dier-
ence
2–35K 3K
min
100
12
Set the minimum
pump capacity
using the RPM
control 100% =
RPM control o
30%–100% 100%
40 °C
Switch-on tem-
perature for the
thermostat func-
tion
20–90°C 40°C
dT
10 K
Hysteresis for the
thermostat func-
tion
1–30K 10K
5.3 "Manual operation" menu
Automatic operation is switched o during manual operation. The outputs can be
manually switched on and o for servicing and testing purposes.
Once the menu has been exited or after 8 hours, automatic operation is reactivated.
Display Meaning Value range
Manually switching on / o the switching
output A1 (pump 1)
0 = O
1 = On
Manually switching on / o the switching
output A2 (pump 2 / valve 1)
0 = O
1 = On
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.

8
5.4 "Basic Setup" menu
The main functions are displayed in the Basic Setup menu. Settings must only be
changed by a specialised technician.
Settings may be adjusted only when you enter the menu within one minute after
the device has been switched on.
Display Meaning Value range Factory
setting
Current
setting
Line Value
0 0 Collector protection
function
0 = O
1 = On 0 = O
1 120 °C Collector protection
function 110 –150°C 120°C
2 0
Recooling function
(only if the collector
protection is on)
0 = O
1 = On 0 = O
3 40°C Recooling temperature 30–90°C 40°C
4 0 Tube collector function,
time-controlled
0 = O
1 = On 0 = O
5 0
Function
Energy yield measure-
ment
0 = O
1 = On 0 = O
6 0 Selection of cooling or
thermostat function
0 = O
1 = Cooling
2 = Heating
0
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
230V connections
L Mains phase
N Neutral conductor - mains and outputs
A1 Solar circuit pump (switching output 1)
A2 Switching output 2
Sensor connections
S1 Collector sensor
S2 Lower storage tank
S3 Thermostat
S4 Collector return
S5 Option: flow meter

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Controller functions
7.1 General controller functions
The controller compares the temperatures of the various measuring points and op-
timally 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 Meaning Value range Typical
setting
min
100
Set the minimum pump capaci-
ty using the RPM control
100% = RPM control o
30%–100% 100%
7.1.3 Independent controller
This function is reserved for output 2 and can be allocated the following functions:
Cooling◼
Thermostat◼
Cooling
If the temperature of the storage tank goes over the adjusted maximum storage
tank temperature – 5K, the switch at output A2 is turned on. Switching o takes
place when under the preset temperature.
"Basic Setup" menu
Display Meaning Value range Factory set-
ting
Line Value
61The cooling or thermostat function can
also be selected.
0 = O
1 = Cooling
2 = Heating
0
Thermostat
If the measured temperature is below the target value, output A3 is switched on
until the measured temperature reaches the target value hysteresis.
"Basic Setup" menu
Display Meaning Value range Factory set-
ting
Line Value
61The cooling or thermostat function can
also be selected.
0 = O
1 = Cooling
2 = Heating
0
"Programming" menu
Display Meaning Value range Typical set-
ting
min 40°C
Switch-on temperature of the
heating function 20–90°C 40°C
dT 10K
Heating function hysteresis 1–30K 10K
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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7.1.4 Tube collector or start function
If this function is activated, the solar circuit pump is started for the entered time
frame regardless of the actual collector temperature. This allows the medium to
reach the measuring point to determine the collector temperature.
"Basic Setup" menu
Display Meaning Value range Factory set-
ting
Line Value
41
Special function for the time-control-
led circulation when operating tube
collectors
0 = O
1 = On 0 = O
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 o once the collec-
tor 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 eective if the storage tank temperature is
below the temperature limit (95°). Therefore, during the holiday period, for exam-
ple, 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 Value range Factory set-
ting
Line Value
0 0 Switches on or o the collector protec-
tion function
0 = O
1 = On 0 = O
1120
°C
Temperature at which the collector
protection function is activated 110–150°C 120°C
2 0
Switches on or o the recooling
function (only if the collector protec-
tion is on)
0 = O
1 = On 0 = O
3 40°C
Temperature to which the storage
tank is recooled once the collector
protection function is activated
30–90°C 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.
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.

12
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 o to protect the system compo-
nents.
If the collector temperature drops below the collector protection temperature, the
solar circuit pump is switched on.The function is always activated.
7.3 Additional function
7.3.1 Energy yield measurement
The energy yield of the solar power system is calculated and displayed using the
temperature dierence between the collector and the collector return temperature
and the measured ow rate.
Required accessories, energy yield set consists of:
Flow sensor
Tube sensor
"Basic Setup" menu
Display Meaning Value range Factory set-
ting
Line Value
50Switches on or o the energy yield
measurement function
0 = O
1 = On 0 = O
8 System monitoring
If an error occurs, the ashing 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 nd 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 ow is interrupted, e.g.
pump fault or if vapour is in the system. This message, however, does not switch o
the pump.
"Basic Setup" menu
Display Meaning
+No circulation in the solar circuit
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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9 Troubleshooting
System faults are distinguished into two general categories:
Faults that are automatically detected by the controller and therefore can be◼
displayed using error messages
Faults that the controller cannot detect◼
9.1 Faults with error messages
Error indication in
the display
Possible causes Measures
Flashing
Sensor cable is inter-◼
rupted Check cable
Defective sensor◼Check sensor resistance
and replace sensor if
necessary
Flashing
Short-circuit in the sensor◼
cable Check cable
Defective sensor◼
Check sensor resistance
and replace sensor if nec-
essary
Circulation error:
No ow
+
Flashing
Additional display
for energy yield
measurement:
Error in the pump con-◼
nection Check wiring
Defective pump◼Replace pump
Air in the system◼Deaerate the system
Defective ow meter◼Check whether the ow
meter impeller moves
freely when the system is
running (if visible)
Defective connection to◼
the ow meter Check cable
Sensor cable is inter-◼
rupted Check cable
Defective sensor◼Check sensor resistance
and replace sensor if
necessary

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9.2 Faults without error messages
Faults and malfunctions that cannot be displayed as well as possible causes and
their error source can be identied using the following table. If you cannot remedy
the fault using the description below, contact the supplier or installer.
Problem Possible causes Measures
Display does not
function
230V mains voltage not◼
available
Switch on or connect
controller
Check the connection's
main fuse
Defective fuse inside the◼
device Check the fuse*,
replace with a new type
2A/T, if necessary.
Check the 230V compo-Check the 230V compo-Check the 230V compo-
nents for short-circuits
Defect device◼Contact the supplier
Outputs are not
switched on
Controller is in manual◼
operation Exit "Manual" operation.
Switch-on condition is not◼
satised. Wait until switch-on
condition is satised.
"Pump" symbol
rotates, but the
pump is not on
Connection to the pump◼
interrupted. Check the cable leading
to the pump
Pump is blocked.◼Free the pump
No voltage present at the◼
switching output. Contact the supplier.
Temperature
display strongly
uctuates at short
intervals
Sensor cables are installed◼
near the 230V cables Relocate sensor cables,
shield sensor cables
Long sensor cables ex-◼
tended without shielding Shield sensor cables
Defect device◼Contact the supplier
Faults that affect the
230V/A mains power
supply must only be remedied by
a specialist!

15
10 SOLAREG II Specications
Housing
Material 100% recyclable ABS housing for wall mount-
ing
Dimensions L x W x D in mm,
weight 175 x 134 x 56; approx. 360 g
Protection class IP20 according to DIN 40050, IEC 529, VDE
0470, EN 60529
Electrical specications
Operating voltage AC 230 Volts, 50Hz, -10 – +15%
Radio interference level N according to VDE 0875
Max. cable cross-section
230V connections 2.5 mm² ne-wire/single wire
Temperature sensor /
measuring range
PT1000, 1 kΩ at 0°C
-30°C .. +250°C
Testing voltage 4 kV 1 min according to EN 60730/DIN, VDE
0631, IEC 60664/IEC
Output Voltage
Power - switching output
230V~
1A / approx. 230VAfor cos φ = 0,7-1,0
Fuse protection Fine-wire fuse 5 x 20mm, 2A/T
(2 amperes, delayed-action fuse)
Miscellaneous
Operating temperature 0 – 50°C
Storage temperature -10 – +65°C
Humidity 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
Resistance
in Ohm
Temperature
in °C
Resistance
in Ohm
-30 882 60 1232
-20 921 70 1271
-10 960 80 1309
0 1000 90 1347
10 1039 100 1385
20 1077 120 1461
30 1116 140 1535
40 1155 200 1758
50 1194
Subject to change in
accordance with technical
advances!

16
12 Warranty conditions
The SOLAREG II controllers are carefully produced and tested on an automatic
testing station. If any failures occur, rst 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 eect 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 specications, improper wiring, invalid technical
modications 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 full 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 enti-
tled 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 eect.
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 descrip-
tion 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 con-
cerning electrical equipment for use within certain voltage limits
DIN EN 61326-1, VDE 0843-20-1:2006-10 Electrical measurement, control and labo-
ratory 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, operat-
ing 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 ENERGY 1316BED051-20B-E, Stand 04/2009