ANS 21
Version 10
-1
EN
Simple solar control unit
Operation
Installation instructions
EN
Table of contents
Safety requirements ................................................................................................................. 3
Maintenance ............................................................................................................................ 3
Solar thermal system ............................................................................................................... 4
Tank load from boiler ............................................................................................................... 4
Selection of the program and sensor type ................................................................................ 5
Master – slave – function ......................................................................................................... 6
Sensor installation .................................................................................................................... 7
Installing the device ................................................................................................................. 8
Electrical connection ................................................................................................................ 8
Tips on troubleshooting ............................................................................................................ 9
Technical data ........................................................................................................................ 10
3
Safety requirements:
All installation and wiring work on the controller must only be carried
out in a zero-volts state.
The opening, connection and commissioning of the device may only
be carried out by competent personnel. In so doing, all local security
requirements must be adhered to.
The device corresponds to the latest state of the art and fulfils all necessary safety
conditions. It may only be used or deployed in accordance with the technical data and the
safety conditions and rules listed below. When using the device, the legal and safety
regulations apposite to the particular use are also to be observed.
► The device must only be installed in a dry interior room.
► It must be possible to isolate the controller from the mains using an all-pole isolating
device (plug/socket or double pole isolator).
► Before starting installation or wiring work, the controller must be completely isolated from
the mains voltage and protected against being switched back on. Never interchange the
safety extra-low voltage connections (sensor connections) with the 230V connections.
Destructive and life-threatening voltages at the device and the connected sensors may
occur.
► Solar thermal systems can become very hot. Consequently there is a risk of burns. Take
care when fitting temperature sensors!
► For safety reasons, the system should only be left in manual mode when testing. In this
operating mode, no maximum temperatures or sensor functions are monitored.
► Safe operation is no longer possible if the controller or connected equipment exhibits
visual damage, no longer functions or has been stored for a lengthy period of time under
unsuitable conditions. If this is the case, place the controller and equipment out of service
and secure against unintentional use.
Maintenance:
If used properly, the system does not require maintenance.
As the components relevant to accuracy are not subjected to loads if used properly, long-
term deviation is very low. The unit thus cannot be adjusted.
The construction characteristics of the unit must not be changed for repairs. Spare parts
must correspond to the original parts and be used as intended.
4
KS
BS
pump
BS
pump
KS
Solar thermal system function switch in position S+ (solar)
The pump runs when sensor KS has a temperature of diff higher than sensor BS and BS
has not exceeded the threshold max.
Pump = KS > (BS + diff) & BS < max
Collector excess temperature: if the collector temperature climbs above 130°C, the pump
is switched off and only released again, if the temperature falls below 110°C.
During the excess temperature shutoff, the two top LEDs of the collector display flash.
Tank load from boiler function switch on position L+ (feed pump)
The pump runs when sensor KS is greater than the threshold max (here used as "min") and
sensor KS is greater than BS by the difference diff.
Pump = KS > max & KS > (BS + diff)
The difference function:
The output only switches the pump when the temperature of the collector or the boiler is
greater than the temperature of the boiler by the set difference diff.
The thermostat function:
Solar S: If the tank temperature exceeds the set maximum threshold, the pump is
switched off regardless of the temperature of the collector (protection from calcification).
Feed pump L: If the boiler temperature falls below the minimum threshold, the pump is
switched off (protection from sooting).
5
Selection of the program and sensor type:
The selection of the program and the sensor type has to be made before installation.
The controller does not operate or operates incorrectly, if the incorrect sensor type is
set.
ALWAYS PULL THE MAINS PLUG BEFORE OPENING THE CASING!
S+K
S+P
L+K
L+P
A
NS 21
The selection occurs by means of a slide switch on the right border of the board. There is
no access possible to the slide switch from outside.
Four positions are available:
1) L+P Feed pump requirement by PT1000 sensors
2) L+K Feed pump requirement by KTY sensors
3) S+P Solar power system with PT1000 sensors
4) S+K Solar power system with KTY sensors
Manual / automatic switchover:
On the front side of the control is a sliding switch with the functions AUS (=OFF), AUT (=
automatic, normal setting) and HAND (=ON, endurance run).
6
TK2 TK1
p - master
p - slave
KS - master
BS - master
BS - slave
TK2 TK1
p - master
v - slave
KS - master
BS- slave BS - master
Master – slave – function:
Two ANS 21 controllers, can be connected via the data link. Consequently it is possible to
charge two tanks, of which one tank is prioritised for charging by the "master".
Both sensors are connected to the master.
Only the tank sensor BS is connected to the slave controller that is subordinate to the master.
The slave receives the collector temperature from the master.
There are two operating modes for this master-slave operation:
2-pump mode: as can be seen in the schematic diagram, a pump is connected to both
master and slave. The master pump has absolute priority, hence the slave pump can
only be switched on if the master pump is switched off (dependent on the starting
conditions). 2-pump mode is activated if the terminals of the collector sensor at the
slave remain disconnected (= interruption).
Pump-valve mode: the common pump is connected to the master controller, the slave
controls the valve. As soon as the starting condition is no longer fulfilled at the master,
the slave receives the command to switch on the pump and switches the valve to "its"
consumer TK2. Pump-valve mode is activated if the terminals of the collector sensor
at the slave are bridged with a jumper (= short circuit).
7
Sensor installation:
The sensors must be properly arranged and installed for the system to function correctly.
Collector sensor (red or grey cable with connection box): Either insert the sensor in a
pipe directly soldered or riveted to the absorber and extending out of the collector casing
or screw the sensor onto a T piece on the end of the supply line’s collecting tube using an
immersion sleeve. No water may be allowed to enter the immersion sleeve (danger of
freezing).
Storage sensor: The sensor should be used with an immersion sleeve just above the
outlet for the exchanger’s return line if heat exchangers with ribbed tubes are used and
with a T piece on the outlet of the exchanger’s feed line if integrated non-ribbed tubes are
used. It should not be installed below the respective register or heat exchanger in any
case.
Boiler sensor (boiler supply line): This sensor is either screwed into the boiler using an
immersion sleeve or at a short distance from the boiler on the supply line.
Pool sensor (swimming pool): Install directly at the outlet from the pool on the suction
line as an attached sensor (see attached sensor). Installation using an immersion sleeve is
not recommended due to the possibility of condensation within the sleeve.
Attached sensor: Attach to the line using pipe or hose clamps. Make sure the material
used is proper (corrosion, temperature resistance, etc.). Then, the sensor has to be well
insulated so that the pipe temperature is measured exactly and the ambient temperature
does not influence the measurement.
All of the sensor cables with a cross-section of 0.75mm2 can be extended up to 30m.
Beyond 30m they can be extended by use of a suitably larger cross section. The sensor and
the extension can be connected as follows: cut the heat-shrinkable sleeve provided down to
4 cm and put it over a wire; twist the naked ends of the wires, and put the heat-shrinkable
sleeve over the naked end; heat it carefully (such as with a cigarette lighter) until the sleeve
has wrapped itself around the connection.
8
Installing the device
WARNING!
ALWAYS PULL THE MAINS PLUG BEFORE OPENING THE CASING!
Unscrew the four screws on the edges of the case and screw on the basin through the two
holes on the bottom side using the fastening screws provided.
Electrical connection
Only a trained electrician may provide the electrical connection in compliance with local
guidelines. The sensor lines must not be laid in the same cable channel as the supply
voltage. In a commonly used cable channel, appropriate shielding has to be provided.
Caution: Only work on the inside of the control system when it is dead. The connections
are to be put according to the marking of the clamps.
Note: To provide protection from lightening, the system has to be grounded in accordance
with the regulations. Sensor failures due to storms and static electricity are usually the result
of improper grounding or overvoltage protection on the collector sensor.
Pin configuration:
When using the master-slave function, the data link must be connected in-phase to both units
(data to data, ground to ground).
S+K
S+P
L+K
L+P
ANS 21
230V~ KS BS Fuse 3.15 A
Data link
Ground
Data
9
Tips on troubleshooting:
When the control system does not function properly on automatic mode, the function
switch and the sensors should be checked.
Version display: as the controller is connected, the version is temporarily displayed using
the right tank LEDs (binary code - reading from the top down).
A short-circuit or an interruption of a sensor are displayed directly on the control system. If
a short-circuit occurs, the lowest LED of the collector or tank icon blinks. In case of an
interruption, the top LED of the icon blinks.
Collector excess temperature: if the collector temperature climbs above 130°C, the pump
is switched off and only released again, if the temperature falls below 110°C.
During the excess temperature shutoff, the two top LED's of the collector display flash.
Master-slave mode: the control circuit continues to function at least partly, if an error occurs
at a sensor:
if the master tank sensor fails, the master pump is deactivated, however it can activate
the slave at any time, depending on the operating mode.
if the slave tank sensor fails, the master operates in stand-alone mode (master-slave
mode is deactivated)
if the master collector sensor fails, the system shuts down completely (LEDs continue
to display the error)
In addition, the sensors can be measured by means of an ohmmeter.
Temp. [°C] 0 10 20 25 30 40 50 60 70 80 90 100
R (Pt1000) [Ω] 1000 1039 1078 1097 1117 1155 1194 1232 1271 1309 1347 1385
R (KTY) [Ω] 1630 1772 1922 2000 2080 2245 2417 2597 2785 2980 3182 3392
If the system is not in operation although supply voltage is connected, the 3.15A quickblowing fuse that protects the control system and the output should be checked and
exchanged if necessary.
10
Technical data:
Temp.difference: adjustable from 2-12°C (hysteresis = 3K)
Overheating temp./ Min.threshold: adjustable from 40-100°C (hysteresis = 3K)
Accuracy: tip. +-2%
Output: 230V~/ max. 200VA
Power draw: max. 2 W
Supply cable: 3x 1mm² H05VV-F conforming to EN 60730-1
Dimensions in mm:
We reserve the right to make technical changes. © 2012
Guarantee conditions
Note: The following guarantee conditions do not in any way limit the legal right to a
guarantee, rather expand your rights as a consumer.
1. The company Technische Alternative elektronische Steuerungsgerätegesellschaft m. b. H.
provides a two-year guarantee from the date of purchase by the end consumer for all the
devices and parts which it sells. Defects must be reported immediately upon detection and
within the guarantee period. Technical support knows the correct solution for nearly all
problems. In this respect, contacting us immediately will help to avoid unnecessary expense or
effort in troubleshooting.
2. The guarantee includes the free of charge repair (but not the cost of on site fault-finding,
removal, refitting and shipping) of operational and material defects which impair operation. In
the event that a repair is not, for reasons of cost, worthwhile according to the assessment of
Technische Alternative, the goods will be replaced.
3. Not included is damage resulting from the effects of overvoltage or abnormal ambient
conditions. Likewise, no guarantee liability can be accepted if the device defect is due to:
transport damage for which we are not responsible, incorrect installation and assembly,
incorrect use, non-observance of operating and installation instructions or incorrect
maintenance.
4. The guarantee claim will expire if repairs or actions are carried out by persons who are not
authorised to do so or have not been so authorised by us or if our devices are operated with
spare, supplementary or accessory parts which are not considered to be original parts.
5. The defective parts must be sent to our factory with an enclosed copy of the proof of purchase and a precise description of the defect. Processing is accelerated if an RMA number is
applied for via our home page www.ta.co.at. A prior clarification of the defect with our technical
support is necessary.
6. Services provided under guarantee result neither in an extension of the guarantee period nor
in a resetting of the guarantee period. The guarantee period for fitted parts ends with the
guarantee period of the whole device.
7. Extended or other claims, especially those for compensation for damage other than to the
device itself are, insofar as a liability is not legally required, excluded.
Technische Alternative
elektronische Steuerungsgerätegesellschaft m. b. H.
A-3872 Amaliendorf Langestraße 124
Tel +43 (0)2862 53635 Fax +43 (0)2862 53635 7
E-Mail: mail@ta.co.at --- www.ta.co.at --- © 2012
Loading...