A
B
7 -
Sensor 1 (solar panel) disconnected or temperature out of range (-50° C or + 200º C), also
check if the sensor is connected to
MICROSOL II plus
terminals 3 and 4.
Sensor 2 (tank or swimming pool) disconnected or temperature out of range (-50° C or +
105º C), also check if the sensor is connected to
MICROSOL II plus
terminals 4 and 5.
Sensor 3 (solar backing/support systems) disconnected or temperature out of range
(-50° C or + 105º C), also check if the sensor is connected to
MICROSOL II plus
terminals 4
and 6.
If there is a problem with sensor 1 or sensor 2 and function is with value, then
the message will be displayed, giving an alarm to indicate that it is unable to calculate the
differential between sensor 1 and sensor 2.
Indicates that
MICROSOL II plus
is activating the antifreeze system. The alarm
indication terminates when the normal operation resumes.
Sensor 1 has identified panel (collector) overheating
Sensor 2 has identified swimming pool (thermal tank) overheating
Some parameter is invalid
Circulation pump activated in manual mode
Circulation pump turned off in manual mode
Sensor 1 (panel) temperature too high
Sensor 1 (panel) temperature low
Alternating with the temperature, clock deprogrammed
Auxiliary system 2 activation alarm
SIGNALING
5 - FACILITATED ACCESS MENU
10 -
10.1 - Wiring diagram for 115Vac
WIRING DIAGRAM
PU
MP
AU
X2
AU
X1
CO
MM
ON
1
2
4
5
6
7
8
9
10
11
12
3
1
2
4
5
6
7
8
9
10
11
12
3
0
115V
Se
ria
l c
om
m
un
ica
tio
n
RS
-4
85
Power
supply
Above the current specified
use contactor
To the terminal of
the distribution box
A
B
9 - 8
MICROSOL II plus
115V
MICROSOL II L plus
12V
10.2 -
230Vac
Wiring diagram for
1
2
4
5
6
7
8
9
10
11
12
3
1
2
4
5
6
7
8
9
10
11
12
3
0
230V
9 - 7
MICROSOL II plus
230V
MICROSOL II L plus
24V
Se
ns
or 1
(c
ol
lec
to
rs
)
Se
ns
or 2
(re
se
rv
oi
r/p
oo
l)
Se
ns
or 3
(s
ol
ar b
ac
kin
gs
)
5.1 - Solar backing 1 manual activation
Keep pressing the key for 5 seconds until the message appears in the display. Then release
the key to activate or deactivate manually the solar backing 1 output. The operation of turning on or off
will be confirmed by the messages or respectively.
To disable the manual activation just configure the function F20 to .
5.2 - Solar backing 2 manual activation
Keep pressing the key for 5 seconds until the message appears in the display. Then release
the key to activate or deactivate manually the solar backing 2 output. The operation of turning on or off
will be confirmed by the messages or respectively.
To disable the manual activation just configure the function F26 to .
5.3 - Solar backing 1 desired temperature (setpoint)
Keep pressing the key
for 10 seconds until the message appears in the display. Then release
the key to set the temperature setpoint of solar backing 1, confirm with the key .
5.4 - Solar backing 2 desired temperature (setpoint)
Keep pressing the key
for 10 seconds until the message appears in the display. Then release
the key to set the temperature setpoint of solar backing 2, confirm with the key .
5.5 - Setting the overheating temperature 2
Keep pressing the key for 5 seconds until the message appears in the display.
Then release the key to set the overheating temperature for sensor 2.
This shortcut is used when
MICROSOL II plus
is installed for swimming pool heating control. In this
case, the function adjusts the maximum temperature of the swimming pool for comfort.
5.6 - Setting the water pump activation mode
Keep pressing the key for 10 seconds until the message appears in the display.
Then release thekey to adjust the water pump activation mode. The options are:
Water pump always OFF
Water pump always ON
Circulation pump operating in automatic mode and not linked to sensor 3. With this mode the
pump is activated only by the temperature differential (S1-S2).
Circulation pump operating in automatic mode and linked to sensor 3. With this mode the
pump is activated by the temperature differential and when the temperature at sensor 1 is higher
than that at sensor 3.
SET
SET
SET
SET
6 - QUICK VIEW
6.1 - View other temperatures
To switch between the temperature views for sensor 1, sensor 2, sensor 3 or temperature difference
between sensors 1 and 2 (differential temperature), press til the desired temperature is displayed.
Sensor 1 temperature
Sensor 2 temperature
Sensor 3 temperature
Differential temperature (S1-S2)
The selected temperature will be displayed for 15 seconds and then the default indication returns (as per
parameter setting).
6.2 - Visualize the current time
Quickly pressing the key , you can visualize the time set in the controller, the current time will be
shown, followed by the minutes and then the day of the week.
Ex.: 12h43min - Friday
Hours
Minutes
Day of the week
SET
6.3 - View maximum and minimum temperatures
Pressing the key enables viewing the maximum and minimum temperature for each sensor, as well
as the maximum and minimum temperature differentials. Upon pressing the key (short touch) the
message will be displayed to indicate sensor 1 temperature and then its maximum and minimum
temperatures will be displayed, then the temperatures for sensor 2 ( ), sensor 3 ( ), and
differential ( ) will be displayed in sequence.
If the key is pressed during the visualization, the values will be reset and the message will be
displayed.
8 -
To define the unit that the system will use to operate, enter into the functions menu using the
access code “231” and confirm it by hitting key . The indication will appear, press or
to choose between: or and confirm with key . After selecting the unit the
message will appear, and the instrument will return to the function . Whenever the unit is altered,
the parameters relating to the temperature must be reconfigured, since they assume ”standard” values.
UNIT SELECTION (°C / °F)
SET
SET
9 - ENABLE / DISABLE THE FACILITATED ACCESS FUNCTIONS
To deactivate or reactivate the functions of facilitated acces (item 5) just press the and keys
simultaneously for 10 seconds until the message (on) or (off) on display.
Pump
Load 1
Load 2
PU
MP
AU
X2
AU
X1
CO
MM
ON
Se
ria
l c
om
m
un
ica
tio
n
RS
-4
85
Power
supply
Above the current specified
use contactor
To the terminal of
the distribution box
Se
ns
or 1
(c
ol
lec
to
rs
)
Se
ns
or 2
(re
se
rv
oi
r/p
oo
l)
Se
ns
or 3
(s
ol
ar b
ac
kin
gs
)
Pump
Load 1
Load 2
Note:
The sensor cable length can be increased by the user until 200 meters using PP 2 x 24 AWG
cable.
Capsule
Sensor
Metal
Plastic
Plastic
Function
Collectors
Reserv./Pool
Solar Backings
Maxinum temp.
operation
200°C / 392°F
105°C /
105°C /
221°F
221°F
S1
S2
S3
Material
Silicone
PVC
PVC
Capsule
Sensor
Metal
Plastic
Plastic
Function
Collectors
Reserv./Pool
Solar Backings
Maxinum temp.
operation
200°C / 392°F
105°C /
105°C /
221°F
221°F
S1
S2
S3
Material
Silicone
PVC
PVC
11 - INTEGRATING CONTROLLERS, RS-485 SERIAL INTERFACE AND
COMPUTER
A
A
B
B
A B
A
B
OUT
1
OUT 2
OUT 3
PCT-400R plus
OUT 4
ALMR
A
A
B
B
A B
A
B
A
A
B
B
A B
A
B
A
A
B
B
A B
A
A
B
B
A B
PUMP
AUX
1
AUX 2
MICROSOL II plus
*Connecting Block for Serial Communication
Used to connect more than one instrument to the Interface. The wire's connections must
be made in agreement with the following rules: terminal
A
of the instrument connects to
the terminal
A
of the c
, that must be connected with the terminal
A
of the
Interface. Repeat the action for terminals
B
and
, being
the cable shield.
onnecting block
the terminal of
must be connected to the respective terminals
of each instrument.
the connecting block
Keep Sitrad updated in website:
http://www.sitrad.com
®
IMPORTANT
According to the chapters of norm IEC 60364:
1:
Install protector against overvoltage on the power supply.
2:
Sensor cables and signal cables of the computer may be joined, but not in the same electric conduit
through which the electric input and the activation of the loads run.
3:
Install transient suppresors (RC filters) parallel to the loads as to increase the product life of the
relays.
Contact suppressor connection diagram
Suppressor
A1
A2
A1 e A2 are the
contactor coils.
Diagram for suppressor installation
for direct drive load inputs
Load
Suppressor
For direct activation the maximum
specified current should be taken
into consideration.
Suppressors on offer from Full Gauge Controls
*Sold Separately
