AGEON A108 User manual

Installation guide
A108
Product description
A108 is a differential temperature controller for
standard solar thermal systems. The on/off control of
the water pump is done by the temperature differ-
ence between the collectorand the reservoir, and the
maximum reservoir set temperature.
Technical characteristics
Supply voltage
110 or 220 Vac, 50-60Hz
Maximum power
4 VA
Pump relay output
10 A / 250 Vac
Measure range
-20 to +105 °C
Operating conditions
0 to 40 °C and 10 to 80 %RH
(no condensation)
Recommended
Panel cutout
70 x 29 mm
Front panel protection
IP 65
NTC sensor
(IP68)
Ø6 mm, L=15 mm
Cable length 1,5 m
Display
Display icons
Icon
Description
- Off during normal operation.
- On if the controller is in ther-
mometer or Stand-by mode.
- On when using the program-
ming key;
- Blinks while exchanging data
with ArcSys.
- On when the circulation
pump is on.
- Off when the circulation
pump is deactivated.
- Blinks during power-up delay
or when the pump is started
in manual mode.
- On if the information shown
on the display is a tempera-
ture in degrees Celsius.
Key functions
Key
Description
Up
- Used to increment values;
- If pressed together with the
“down” key for 4 seconds,
the user will access or exit
the parameters table;
- If pressed on the main
screen, the display will show
which protection function is
working on the pump.
On/Off
- Function defined according
to the value set in parameter
“FP”:
0 –Key disabled
1 –Turn on/off the standby
mode
2 –Turns on/off the display.
Down
- Used to decrement values.
- If pressed together with the
“up” key for 4 seconds, the
controller will enter or exit
the parameters table.
- If pressed on the main
screen, displays the system
temperatures, t1 (collector),
t2 (reservoir), and dd (t1-t2)).
- If pressed on the main
screen for 2 seconds, the
controller will manually acti-
vate the pump and it will be
activated during the time set
in P8
- If pressed when Cd = 97, it
will reset all parameters to
the factory default values.
- Used to show the Setpoint
on the main screen and the
values in the parameters ta-
ble.
- Together with the “up” and
“down” keys, it adjusts val-
ues, whether of the Setpoint
or parameters.
- If pressed on the main
screen, the display will show
the highest and lowest tem-
perature values registered
(tH and tL). If pressed again,
tH and tL are reset.
- If pressed while in the pa-
rameters table, the firmware
version will display.
Dimensions (mm)
Fixing
Recommendations and warnings
These instructions are exclusively addressed to
authorised skilled personnel.
Only qualified electricians are allowed to carry out
electrical works.
Initial commissioning must be effected by the
system installer or qualified personnel named by the
system installer.
Before powering up the device make sure all
connections are correct.
Never expose the product at temperature outside
the operating range (0 to 40 °C for the controller and
-50 to 100 °C for the NTC sensors), this could lead to
irreversible damage.
A108
Digital temperature controller
Vx.x.5
Rev. 03

Connection diagram
Note: Back view of the device
1) Step by step installation:
2) Power supply:
Terminals 6 and 7 (110V);
Terminals 6 and 8 (220V);
3) Jumper from 7 to 5 (110V);
Jumper from 8 to 5 (220V);
4) Pump: Terminals 4 and 6;
5) Collector sensor (T1): Terminals 12 and 13;
6) Reservoir sensor (T2): Terminals 11 and 13.
Noise supressor
When using the controller to drive inductive loads
such as solenoid coils, contactors, motors, and re-
lays, among others, it is recommended to install a
noise suppressor circuit in parallel with the coil ter-
minals (A1 and A2). This minimize the electrical noise
generated, when inductive loads (coils) are deac-
tivated, which can interfere with the controller op-
eration and cause operation malfunctions.
Setting parameters
To adjust the parameters, on the initial main
screen of the controller (showing the temperature),
follow these steps:
a) Keep the “up” and “down” keys pressed sim-
ultaneously for 4 seconds until the symbol
“Cd” appears on the display;
b) With the display showing “Cd”, keep the
“set” key pressed and use the “up” and
“down” keys to increase the parameter value
up to 28 to adjust the settings in basic mode
or up to 38 to set in full mode. Then, release
the “set” key so that “Cd” appears again in
the display.
c) Using the “up” and “down” keys, navigate
until you reach the parameter that needs to
be configured. Keep the “set” key pressed
and use the “up” and “down” keys to change
the values as desired. By setting the desired
value and releasing the “set” key, the same
can be done for the rest of the parameters;
d) After finishing all the adjustments, keep the
"up" and "down" keys pressed for 4 seconds
to exit the parameters table and start the con-
troller operation. If no key is pressed for 30
seconds, the controller will automatically exit
the parameters table.
User access
Setpoint –To change the system Setpoint, hold
the “set” key and adjust the value using the “up” and
“down” keys. If you just want to view the Setpoint
value, just press and hold the “set” key. NOTE: Re-
member that the setpoint is the maximum tempera-
ture that the user wants the reservoir to reach,
therefore, if the temperature difference between the
collector and the reservoir is greater than r0, the
pump will remain running until reaching the Setpoint
value.
Manual pump drive –If you want to start the
pump manually, press and hold the "A" key for 2 sec-
onds, the same process is used to turn off the pump.
Parameter P7 controls the time the pump stays on if
started manually. The circulation LED will flash during
the manual operation of the pump.
Standby Mode –If the "PF" parameter is set to
"1", press the power key to deactivate or deactivate
Standby mode, in which mode the controller deac-
tivates the control action, and consequently the re-
lays, and turns-off the display.
Thermometer mode –If the "PF" parameter is
set to "2", press the power key to activate or deacti-
vate the thermometer mode, this mode deactivates
the control action, and consequently the relays, but
keeps the display on showing the temperature.
Resetting the parameters to default values –
To reset the controller to factory default values, set
the “Cd” parameter to 97 and press the "A" key.
Minimum and maximum historical reservoir
temperature –To visualize the highest and lowest
temperature registered in the reservoir, press the
"B" key, the controller will alternate the Min. and
Max. values on the display. If you need to reset the
temperatures, just press the "B" key again for ap-
proximately 1 second during the display of the histor-
ical temperatures.
Firmware version–To find out which firmware
version your controller has, in the configuration
screen (parameters table); press the "B" key.
Relay test –If the user wants to ensure that the
pump relay is working, it is possible to carry out a
manual test. To enter the test mode, enter the pa-
rameters table, enter the value 77 in the “Cd” param-
eter, and wait for “tst” to be displayed. Press the
"Power" button to test the relay. Pump circulation
LED will be on if the relay is active.
Programming key –Another product that can
bepurchased separately is the programming key.
With the programming key the user can change the
parameters of the controllers quickly and easily, and
can replicate the configuration of a controller to
other controllers.
Comunication to Arcsys –The controller has a
USB port that can be connected to the ISX10, the de-
vice for monitoring through the ArcSys interface. If
you want to monitor the controller online, a separate
product must be purchased, the RS-485 adapter:
Connect the USB output adapter from the control-
ler and make the connections to the iSX10, remem-
bering that the co-connection must be A-A, B-B and
GND-GND.
Error indications
The indication of error “E1” will appear on the display of
the device whenever there is a problem with the sensor of
the collector and the indication “E2” when there is a prob-
lem with the sensor of the reservoir. If this happens, check
if:
The sensor is properly connected to the device;
The sensor is within its working temperature range (-
50 to +100) °C;
The sensor or its cable are damaged.

Parameters description
Cd –Access code: it is necessary to unlock the parameters
so that they can be adjusted. To unlock them, enter the
value 28 in “Cd” for basic parameterization mode or 38 for
full mode. If this is not done, parameter values can only be
viewed and not changed. This parameter prevents unau-
thorized persons from changing programmed values.
SP –Setpoint (reservoir overheating temperature): sets
the maximum temperature allowed in the reservoir. NOTE:
This parameter is adjusted from the main screen, by holding
the “Set” key and using the “Up” or “Down” key.
td –Default displayed value: determines which temper-
ature will have priority for visualization on the display main
screen, “t1” temperature in the collector, “t2” temperature
in the reservoir, and “dd” temperature difference between
collector and reservoir (t1-t2).
r0 –Turn-on temperature difference (t1 –t2): deter-
mines the minimum temperature difference for turning on
the relay. For example, if it is set to “6°C”, the pump will turn
on when the temperature in the reservoir is at least 6 de-
grees lower than the temperature in the collector.
r1 –Turn-off temperature difference (t1 –t2): deter-
mines the minimum temperature difference for turning off
the relay. For example, if it is set to “2°C”, the pump will turn
off when the temperature between the reservoir and col-
lector is 2 degrees or less.
r9 –Pump relay minimum power-up delay: defines a
time period after powering up the device in which the pump
relay remains off, during this period the device will only in-
dicate the temperature value. This parameter also protects
the pump from constant starts in case of consecutive power
outages.
P0 –Collector´s antifreeze temperature (Turn-on the
pump): this parameter is used in very cold regions where
the water in the collector may freeze. In this parameter, the
user sets a minimum temperature in the collector to turn on
the pump, in order to circulate the water and try to prevent
it from freezing.
P1 –Collector´s superheat temperature (Turn-off the
pump): in this parameter, the user will program a maximum
temperature in the collector. When this value is exceeded,
the controller will keep the pump turned off, to prevent this
excessively hot water from going to the reservoir/pool.
h2 –Superheat temperature hysteresis (P1): in this pa-
rameter, the user will set a hysteresis for the overheating
protection of the reservoir.
P4 –Highest allowed setpoint: this parameter will limit
the highest setpoint/superheating temperature for the res-
ervoir.
P6 –Recirculation (Turn-on the pump for 25s every 25
min): if the user sets “YES” in this parameter, the pump will
turn on every 25 min to recirculate the water through the
piping. NOTE: the water will only recirculate if no protection
parameter is active and if the collector temperature is
greater than 20 °C and greater than the reservoir tempera-
ture.
P7 –Cooling: this parameter is used to cool the water in
the reservoir if it is warmer than the collector is. If set to
“YES”, the pump will turn on when the reservoir tempera-
ture is 3°C degrees higher than the collector temperature.
P8 –Maximum time of the activated pump, if activated
manually: In this parameter, it is possible to set a maximum
time in which the pump will remain on if it is activated man-
ually using the “A” key. This parameter is used to prevent
the pump from remaining on for a long time if the user does
not manually turn it off.
P9 –Maximum time of the activated pump, if activated
by the diference (t1-t2): in this parameter, it is possible to
program a maximum time the pump will stay on if it is
started by the temperature difference parameter (r0).
NOTE: Upon reaching the end of the time set in parameter
P9, the controller turns off the pump and the display will
show "P9" until the temperature difference (t1 - t2) is
smaller than the temperature difference set to turn off the
pump (r1).
–Parameters enabled in full mode (Cd = 38) –
FP –On/Off key function: defines the function of the
On/Off key, as follows:
- 0 –key disabled;
- 1 –key activates/deactivates standby mode: the
power key will turn-on/off the system's standby mode;
- 2 –key activates/deactivates the control action, but
keeps the display on showing the temperature.
bt –Lock changes 10s after the last keystroke: in this pa-
rameter, the user can enable a block for 10 seconds, as fol-
lows:
- oFF –function disabled;
- 1 –Lock all changes, except the Setpoint;
- 2 –Lock all changes.
Ed –Network address: this parameter defines the device
address in standard RS-485 communication with the ISX10
(Arcsys). If the system has two or more controllers, they
must not have the same “Ed” value.
bU –Lock remote changes (Arcsys or ArcSys Cloud): this
parameter, when set to “YES”, prevents changes to control-
ler parameters via Arcsys or ArcsysCloud.
A0 –Hysteresis of the reservoir temperature alarm: this
parameter defines the alarm temperature differential.
A1 –Low-temperature reservoir alarm limit (t2): defines
the lower temperature alarm limit for the reservoir. If this
limit is reached, the display will flash and the relay output
will be turned off.
A2 –High-temperature reservoir alarm limit (t2): defines
the upper temperature alarm limit for the reservoir. If this
limit is reached, the display will flash and the relay output
will be turned off.
Parameters table
Parameter
Range
Default value
Cd Access code
0 a 999
0
Temperature control
SP Setpoint (reservoir overheating temperature)
15 to P4 °C
40
td Default displayed value
t1, t2 or dd
t2
r0 Turn-on temperature difference (t1 –t2)
(r1 + 0.1) to + 45.0 °C
4.0
r1 Turn-off temperature difference (t1 –t2)
0.1 to (r0 - 0.1) °C
2.0
r9 Pump relay minimum power-up delay
0 to 20 min
0
System protections
P0 Collector´s antifreeze temperature (Turn on the pump)
oFF or 0 to 10.0 °C
2.0
P1 Collector´s superheat temperature (Turn off the pump)
15 to 100 °C
90
h2 Superheat temperature hysteresis (P1)
0.1 to 20.0 °C
2.0
P4 Highest allowed setpoint
SP to 100 °C
100
P6 Recirculation (Turn-on the pump for 25 s every 25 min)
Yes or no
no
P7 Cooling
Yes or no
no
P8 Max. time of the activated pump, if activated manually
1 to 999 min
300
P9 Max. time of the activated pump, if activated by the difference (t1-t2)
1 to 999 min
300
Full mode
Parameters below only appear if Cd = 38
Key control
FP On/Off key function
0, 1 or 2
0
bt Lock changes 10s after last keystroke
oFF, 1 or 2
oFF
Arcsys
Ed Network address
0 to 32
8
bU Lock remote changes (Arcsys or ArcSys Cloud)
YES or no
no
Temperature alarm
A0 Hysteresis of the reservoir temperature alarm
0.1 to 20.0 C
3.0
A1 Low-temperature reservoir alarm limit (t2)
-50 to A2 C
-50
A2 High-temperature reservoir alarm limit (t2)
A1 to 100 C
100
A3 Start-up alarm delay
0 to 999 min
99
A4 Alarm sending frequency
0 to 240 min
0
Outros ajustes
FL Temperature digital filter
1 to 40
3
C1 Collector sensor calibration
oFF, -15.0 to +15.00 C
0.0
C2 Reservoir sensor calibration
oFF, -15.0 to +15.00 C
0.0
tL Minimum historical reservoir temperature (t2)
-50 to 100 C
-
tH Maximum historical reservoir temperature (t2)
-50 to 100 C
-

A3 –Start-up alarm delay: defines the time in which the
alarm monitoring will be disabled after the cycle starts.
A4 –Alarm sending frequency: defines how often
Arcsys/ArcsysCloud should send alarm alert E-mails to the
user, as long as the recipient e-mail is configured.
FL –Temperature digital filter: applies a filter to smooth
the temperature variation shown on the display. The higher
the filter value is, the smoother the variation shown is. If the
filter is at the maximum value (40) the shown temperature
varies at most 0.1 °C every 2 seconds, and if it is at the low-
est value (1) the temperature shown varies up to most 0.1
°C every 0.05 seconds.
C1 –Collector sensor calibration: the value configured in
this parameter offsets the collector temperature, for any
deviations in sensor accuracy.
C2 –Reservoir sensor calibration: the value configured in
this parameter offsets the temperature of the reservoir, for
eventual deviations in the accuracy of the sensor.
tL –Minimum historical reservoir temperature (t2): this
read only parameter indicates the lowest temperature rec-
orded in the reservoir over the course of system operation.
tH –Maximum historical reservoir temperature (t2): this
read only parameter indicates the highest temperature rec-
orded in the reservoir throughout the system operation.
Ageon contact
Phone: [phone]
Technical Support/WhatsApp: [phone]
E-mail: suport[email protected]
Website: www.ageon.com.br
Notes