Wagner & Co SUNGO SL Operating Instructions Manual
OPERATING INSTRUCTIONS, Version SW1203/3.00/ HW3.0
W agner& C
o
Solar Controller SUNGO SL
W agner& C
o
The benefits at a glance
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Large illuminated display to indicate temperature, bal
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ance values and system status with clearly visible sym
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bols for easy readability.
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Easy and safe operation via four buttons for vertical and
horizontal scrolling through the menus.
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Extensive diagnostics for monitoring system functions,
eg. sensor cutoff and monitoring of temperature differ
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ence “∆T too high”
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Integrated security functions such as collector cooling,
storage tank cooling, system protection and vacuum
tube collector function.
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Solar charging of 1 and 2 tank systems
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Choice of thermostat function or return temperature in
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crease
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Balance/reset values
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5 temperature inputs PT1000
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1 output, speed-controlled
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The sensor T5 (solar return) and an external volume
measuring device provide energy measurements
in
kWh.
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NEW – now also SECUSOL system ready!
Contents
1. Technical Description ................. 2
2. General Safety Guidelines ............... 4
2.1 Installer’sQualifications ................ 4
2.2 OperatingRequirements ............... 4
2.3 Installationand OperatingInformation ....... 4
3. Installation........................ 4
3.1 Installationof the Housing............... 4
3.2 ConnectingWires ................... 5
4. Operation ........................ 6
4.1 Displayand Buttons .................. 6
4.2 InformationMenu ................... 8
4.3 SettingsMenu...................... 9
4.4 ManualOperationMenu ...............10
4.5 SpecialFunctionsMenu ................10
4.6 Service– System Messages ..............11
4.7 Service– Sensor Control ................11
5. Application Examples .................11
5.1 StandardSingleTankSystem .............11
5.2 StandardDualTankSystem ..............12
5.3 SECUSOLSystem....................12
Figure 1 Solar Controller SUNGO SL.
Solar Thermal / Solar Circuit EN-SUNGO-SL_BA-0809-1122P300 · 1316BED008-30B-E 1
2 EN-SUNGO-SL_BA-0809-1122P300
1. Technical Description
Solar Controller SUNGO SL
Material
100 % recyclable ABS-housing
for wall mounting
Dimensions (LxHxWinmm) 173x138x51
Protection type IP40 according to VDE 0470
Rate of radio interference N according to VDE 0875
Operating voltage
230 Volt AC; 50 Hz;
-10% to +15%
Diameter of cable max.
for 230 V connections
2.5 mm² unifilar or finely
stranded
Temperature sensor /
Temperature range
Pt1000; 1000 W at 0 °C;
Range: -30 °C to +225 °C
Sensor load
The cable of the sensor must
be installed with no tension.
The sensor must not be loaded
mechanically when the
temperature of the collector is
more than 60 °C.
Test voltage
4 kV 1 min according to VDE
0631
Switching voltage
Output parameters of switches
230 Volt AC
1A / ca. 230 VA
for cos ϕ = 0.7-1.0 for each
output
Internal mains protection
Microfuse5x20mm;
2 A/T
Operating temperature
(internal) / storage temperature
0° to +50 °C /
-10° to +65 °C
Weight ca. 360 g
Solar Charging
The solar circuit pump is switched on and off by means of a
temperature difference control. The sensors T1 (collector)
und T2 (tank, bottom) are requiredas control elements. The
on/off conditions and the temperature limitation can be
variably set in the settings menu. Note: The temperature
limitation always affects sensor T2 (tank, bottom).
Speed Control
The solar circuit pump can be controlled via speed control
(in this case impulse packet control). This means that indi
vidual sine half-waves in the alternate current are switched
on or off depending on the temperature difference. There
fore the speed can be altered within a range of 30-100%
which results in longer system run times. The minimum
speed can be custom set.
Sensor T3 (tank, top)
Sensor T3 (tank,top) has different functions.By default it is
the measuring sensor for the top of the tank. In that case it
has no switch function and is not monitored by the diag
nostics system.
With the return temperature increase function activated it
functions as ahot sensor (source).Withthe thermostat heat
ing with additional sensor function activated it functions as
an additionalsensor.In both casesthis sensor is used in the
hotareaofthetankandaffectsswitchingoutputA2.
If used in this way the sensor function is monitored as nor
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mal by the diagnostics system.
Balance Values
In addition to the actual values of the sensors T1 (collector)
and T2 (tank, bottom) the display also shows balance val
ues which represent the smallest and biggest temperature
values for each sensor. After reset the actual temperature
value is displayed.
Manual Operation
Allows switching inputs andoutputs on or off manually. On
exiting themanual operation menu,the software returns to
automatic operation. The manual operation menu can be
used for amaximum of 8 hours. After that the softwareauto
matically switches back to automatic operation and to the
information menu.
Manual Lag Function
In order tocheck the temperature valuesin the information
menu even when the outputs are set manually, a time lag
has to be selected in the manual lag function in the manual
operation menu. On exiting the manual operation menu,
this time span passes once and then is set back to zero. In
this mode a blinking symbol for the manual operation is
shown in the information menu.
Collector Cooling
The tank is loaded up to the preset temperature limitation
which affects sensor T2(tank,bottom).If the preset temperature limitation is exceeded output A1 (solar circuit pump)
switches off. If the temperature of T1 (collector) then rises
above theselectable standardvalue of 110 °C the solar circuit pump is switched on in order to cool the collector. It
switches off again when the temperature at the collector
sensor has decreased by 10 K.
This type of intermittent operation of the solarcircuit pump
means that the collector is never or only rarely in an idle
state. If the preset tank temperature limitation is exceeded
by 5 Kthecollector cooling functionissuppressed.Thesys
tem shuts down completely.
Storage Tank Cooling
Storage TankCoolingmeans that ifnecessary the tanktem
peraturecan be reduced downtoa preset lowest switching
off value (setting for vacations).
When the collector cooling function is activated storage
tank cooling will also become active.
In order for storage tank cooling to become active the fol
lowing 3 conditions must be met:
1. Temperature T2 (tank, bottom) must be higher than or
equal to the preset tank temperature limitation plus 2 K.
2. Temperature T2 (tank, bottom) must be higher than the
preset switching off value for storage tank cooling.
3. Temperature T1 (collector) must be lower than tempera
ture T2 (tank, bottom) minus 10 K.
In order forstorage tank coolingto switch offone of the fol
lowing 2 conditions must be met:
1. Temperature T2 (tank, bottom) is lower than the switch
ing off value for storage tank cooling.
2.Temperature T1(collector) must be higher than tempera
ture T2 (tank, bottom) minus 2 K.
EN-SUNGO-SL_BA-0809-1122P300 3
Vacuum Tube Collector Function
The vacuum tubecollector function allows operation of the
solar heating system even if sensor T1 (collector) is in
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stalled in the connecting pipe of the collector. If the tem
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perature increase at sensor T1 exceeds the preset switch
ing on value for the collector temperature increase
(standard: 1K) the solar circuitpumpis switched on forthe
duration of a preset lag time (standard: 15 s).
During this time the switching on difference and the solar
charge between sensor T1 (collector) and sensor T 2 (tank,
bottom) has to be activated, otherwise the solar circuit
pump will switch off again.
The rise intemperature at sensorT1 (collector) ismeasured
again immediately after the last runtime of the pump.
System Messages
The system messages for interrupted or shorted-out sen
sors are represented by symbols on the display.For better
recognition of the system messages
the display illumina
tion switches on and off every second as long as the error
prevails and no key entry is made.
Triac
The Triac is anelectronic on/off switchfor the 230Voutputs
of the SUNGO Controller.
Function: A triac switch consists of 2 diodes which can be
switched anti-parallel (= antiparallel thyristors). The
thyristors switch through the positive or negative sine halfwave as long as a switching on difference exists. The triac
switch switches off when the temperature falls below the
switching-off difference.
System Protection
In order to protect the system components (solar circuit
pump, 2 or 3 way valves etc.) in the solar heating circuit
from extremely high temperatures the solar charge is
stopped completely if a temperature limit at the collector
sensor is exceeded, even if this was permitted on account
of a temperature difference between sensor T1 (collector)
and sensor T2 (tank, bottom).
The standard temperature value for activating the system
protection function is 135 °C. However, this value can be
variably set within a range of 115° to 200 °C.
Dual Tank Operation
The SUNGO SL is capableof controlling a dual tank system
by using output A2 for switching between tanks with the
help of a 3 way valve.Change the menuitem 0–1to0–2in
order to control a dual tank system.
Note: If the dual tank option is selected menu item 10 can
no longer be activated.
Preference
The SUNGO SL always uses tank 1 as a preference for the
dual tank option. This cannot be changed.
Thermostat
The thermostat function for switching on can be set at a
range between 0° to 130 °C with a variable difference be
tween 1 to 40 K for switching off.Choose between the op
tions heating and cooling.
With the heating option activated output A2 switches on if
the current temperature T4 fallsbelow the preset switching
on level. Output A2 switches off if the current temperature
T4 is higher than the switch-on level plus the switch-off dif
ference.
With the heating option an additional sensor T3 can be ac
tivated. If this is the case A2 is only switched on if tempera
ture T3 ishigher than theswitching on level plus the switch
ing off difference plus the additional difference for T3.
With the cooling option activated output A2 switches on if
the current temperature T4 falls below the preset switch
level. Output A2 switches off if the current temperature T4
is lower than the switch level minus the switching off
difference.
There are 3 independent time windows available for the
thermostat. If no time window is activated time window 1
has to be set to 0:00 and 23:59.
Return Flow Boost
This is a freely adjustable temperature differencefor simple
heating support which leads the heating return-flow T4
(drain) to the heating boiler, either directly or via the solar
tank, depending on the preset temperature difference to
the tank sensorT3 (source) , by switching the3 way valve on
output A2.
Note: In addition to the switching phase (black) on output
A2, the switching head also requires a constant phase
(brown).
SECUSOL Function
The solar heating systemisoperated on a drainback princi
ple. This means if the solar circuit pump is not activated
there is no solar fluid in the collectors and risers. See
SECUSOL instructions for further details.
Measuring the Yield
For measurements of the solar yield in kWh.The heat yield
is measured with a volume flow metre connected to input
T7, an additional sensor T5 (return) and the existing sensor
T1 (collector).
4 EN-SUNGO-SL_BA-0809-1122P300
2. General Safety Guidelines
The following safetyadvice is designedto protect youfrom
dangers that can arise from improper handling of devices,
whether intentional or otherwise. A distinction is made be
tween general advice presented here and specific advice
presented throughout the guidelines.
DANGER for danger to the person
Improper electrical installation of the device can lead to
potentially fatal electric shocks as well as other health
hazards.
CAUTION for danger to property
This symbol indicates dangers that can result in damage to
the components or the function of the control.
NOTE for additional information
This symbol indicates practical advice and tricks of the
trade which will be useful for installing and operating the
control.
2.1 Installer’s Qualifications
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Setting up and commissioning of the SUNGO SL must
be carried out by a qualified installer.
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All national andlocal safety regulationsneed to be com
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plied with.
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Please note that in case of a complaint the guarantee is
only valid if correct commissioning has been certified in
a commissioning report.
2.2 Operating Requirements
Application
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Controlling solar thermal systems through the selection
of applicable control patterns and additional functions
to adaptthe control forthe required operation of the hy
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draulic system.
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The control must only be operated in dry rooms.
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The control can be integrated into the solar circulation
unit or mounted on the wall.
Limitations of use
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If usedina non-solar thermalapplicationthe functionality
of thecontrol hastobe checked before commissioning.If
in doubt contact the control service of Wagner & Co.
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If these operating requirements are not observed any
claims under the warranty will not be accepted.
2.3 Installation and
Operating Information
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Any installation and wiring work has to be carried out in
an idle state as during operation the voltage on the out
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side of the triacs is 230 V.
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Mains power mustbe connected to thecontrolfrom out
side the solar station via an external ON/OFF Switch.
This is also required to activate the special functions
menu through switching the mains power ON/OFF.
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Operating temperatures above 50 °C are not permitted
for the control.
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LCD display panels are designed in such a way that a
specific reading position isrequired.When installing the
control, be careful to place the display so that it is at eye
level or slightly higher. This way you can ensure optimal
display contrast.
●
The base of the control is divided into a safety low volt
age section and a 230 V section by a crosspiece. Make
sure that you do not confuse these sections during the
installation process.
● The default operating mode is the automatic mode.
Manual operation is used only for functional testing of
the different hydraulic components (pump, 2/3 way
valve). In this operating mode maximum temperatures
or sensor functions are not monitored.
● Do notoperatethesystemif the control,the wiring or the
connected 230 V mains are visibly damaged.
● The control is fitted with a mains microfuse.
● Collectors and hydraulic pipework can get extremely
hot during sunny periods. There is a risk of scalding
when fitting the collector temperature sensor.
3. Installation
3.1 Installation of the case
Opening the case
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No tools are required to open the control case. The lid
folds overon top of the lower half. Youcan dislodge and
lift up the lid by pulling gently on the side clips.
●
When fully opened the lid will not move so that you can
take care of mounting and wiring comfortably.
Wall mounting
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Use the supplied drillingtemplatetodrill the fixing holes
for the controller.
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Mount the control to the wall.
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Do not overtighten the screws to avoid damage to the
lower part of the housing.
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