DIFFERENTIAL TEMPERATURE
CONTROLLER FOR SOLAR HEATING
WITH TWO SOLAR BACKING
Ver.01
Microsol II power
3. TECHNICAL SPECIFICATIONS
- Power supply:
90 ~264Vac ± 10% (50/60Hz) - Also available in 12Vac/dc
- Temperatura de controle:
Sensor 1: -50 a 200°C
- Control temperature:
Sensor 1: -50 to 200°C / -58 to 392°F
Sensors 2 and 3: -50 to 105°C / -58 to 221°F
- Resolution:
0.1°C between -10 and 100°C and 1°C in the rest of the range
1°F in all range
- Dimensions:
123 x 84 x 34mm
- Operating temperature:
0 to 50°C / 32 to 122°F
- Operating humidity:
10 to 90% RH (without condensation)
- Sensors:
S1 - Sensor of the collectors - Metal capsule- Silicone
S2 - Sensor of the Reservoir/Pool - Plastic capsule - PVC
S3 - Sensor for control of solar backings -
capsule - PVC
- Control outputs:
PUMP -
Water pump or solenoid - 16(8)A / 250Vac 1HP
AUX1 - solar backing 1 - 16(8)A / 250Vac 1HP
AUX2 - solar backing 2 - 30(15)A/250Vac 2HP
Plastic
4. ADVANCED SETTINGS
4.1. To access and change the configuration settings
The configuration settings can be accessed and changed through Wall-Fi, Wall-Link or even through
Sitrad software.
4.2.2. Parameters description
F01 - Differential for turning on the water circulation pump
It allows the adjustment of the differential temperature (S1-S2) to activate the water circulation pump. As
the solar collectors receive energy, the temperature in sensor S1 increases. When this temperature is at a
value established as being above the temperature of sensor S2, the pump is turned on and circulates
under the heated water, storing it in the reservoir, for example.
F02 - Differential for turning off the water circulation pump
It allows the adjustment of the differential temperature (S1-S2) to turn off the water circulation pump. With
the pump on, the hot water circulates below and cools upwards. After which time, the temperature
difference between S1 and S2 tends to decrease. When this difference falls to an established level, the
pump is turned off and the water circulation stops.
F03 - Minimum temperature at S1 to switch on the pump
Minimum temperature at sensor 1 to allow switching on the water circulation pump. To deactivate this
function just adjust it with the minimum value.
F04 - Pump switch on delay
It allows setting the minimum time the pump must be switched off before being switched on again. It
prevents switching the pump on and off at short intervals, thus increasing pump's service life. It also
defines the delay to switch on the pump after switching on the controller.
F05 - Negative differential (S1-S2) to switch on the pump to dissipate heat
Negative differential (S1-S2) to switch on the water circulation pump. Its allows dissipating heat to reduce
any excess temperature in the water tank. To deactivate this function just adjust it with the maximum value.
F06 - Minimum temperature at S2 to allow activating heat dissipation
Minimum temperature at sensor 2 to allow activating the heat dissipation functions.
4.2.1. Settings parameters
F07 - Antifreeze S1 to switch on the pump
It allows setting the temperature for which the collectors start to ice. When the temperature at the collectors
(sensor 1) is too low (e.g. winter nighttime), the pump is switched on at regular intervals to prevent the
water from freezing and damaging the pipes. To deactivate this function just adjust it with the minimum
value.
F08 - Antifreeze hysteresis
Hysteresis for the antifreeze function to switch off the water circulation pump.
F09 - Minimum antifreeze time
Minimum time for which the antifreeze function stays on even if the temperature at sensor 1 returns to the
normal value.
F10 - Overheating temperature S1 to switch off the pump
It allows setting the overheating temperature of the collectors to switch off the water circulation pump.
When the temperature at the collectors (sensor 1) is higher than an adjustable value, the pump is switched
off to prevent the overheated water from circulating through the pipes and damaging them (if PVC pipes
are used).
F11 - Overheating hysteresis to switch on the pump
Overheating temperature hysteresis adjustment for sensor 1 to allow switching on the pump again
.
F12 -
F13 -
F14 -
F15 -
Overheating temperature S2 to switch off the pump (swiming pool temperature)
It allows setting the overheating temperature of the swimming pool to switch off the water circulation
pump to avoid uncomfortable thermal conditions.
Overheating hysteresis to switch on the pump (S2)
Overheating temperature hysteresis adjustment for sensor 2 to allow switching on the pump again.
Solar backing 1 operating mode
It allows setting up the operating mode of the solar backing 1 output. The modes are:
0 -
Solar backing 1 working independently from solar backing 2
1
-
Solar backing 1 deactivated when solar backing 2 is activated
Solar backing 1 temperature setpoint
Allows setting the activation temperature for solar backing 1.
F16 - Solar backing 1 activation hysteresis
Hysteresis setting for solar backing 1 activation temperature setpoint.
F17 - Minimum value for solar backing 1 temperature setpoint
Lower threshold aimed at preventing an exceedingly low temperature setpoint from being adjusted
inadvertently for solar backing 1.
F18 - Maximum value for solar backing 1 temperature setpoint
Upper threshold aimed at preventing an exceedingly high temperature setpoint from being adjusted
inadvertently for solar backing 1.
F19 - Solar backing 1 manual activation time
Time for which solar backing 1 stays on when activated manually. After this time solar backing 1 returns
to automatic operation.
Solar backing 1 activation hysteresis
Minimum value for solar backing 1 temperature setpoint
Maximum value for solar backing 1 temperature setpoint
Solar backing 1 manual activation time
Solar backing 2 operating mode
Solar backing 2 temperature setpoint
Solar backing 2 activation hysteresis
Minimum value for solar backing 2 temperature setpoint
Maximum value for solar backing 2 temperature setpoint
Solar backing 2 manual activation time
Cyclic timer on time
Cyclic timer off time
Event schedule linking mode
Minimum S1 temperature alarm
Maximum S1 temperature alarm
S1 temperature indication offset
S2 temperature indication offset
S3 temperature indication offset
RS-485 network address
0.1
-50.0
-50.0
0
0
-50.0
0.1
-50.0
-50.0
0
1
1
0
-50.0
-50.0
-5.0
-5.0
-5.0
1
1
-58
221
0
0
86
1
-58
221
0
1
1
0
-58
392
0
0
0
1
36
221
221
999
5
221
36
221
221
999
999
999
3
392
392
9
9
10
247
1
-58
-58
0
0
-58
1
-58
-58
0
1
1
0
-58
-58
-9
-9
-9
1
1.0
-50.0
105
0
0
30.0
1.0
-50.0
105
0
1
1
0
-50.0
200
0.0
0.0
0.0
1
°C
°C
°C
min.
-
°C
°C
°C
°C
min.
min.
min.
-
°C
°C
°C
°C
°C
-
20.0
105
105
999
5
105
20
105
105
999
999
999
3
200
200
5.0
5.0
5.1
247
°F
°F
°F
min.
-
°F
°F
°F
°F
min.
min.
min.
-
°F
°F
°F
°F
°F
-
F16
F17
F18
F19
F20
F21
F22
F23
F24
F25
F26
F27
F28
F29
F30
F31
F32
F33
F34
Description
Min Max Unit
CELSIUS
Fun
Standard
FAHRENHEIT
Differential for turning on the water circulation pump
Differential for turning off the water circulation pump
Minimum temperature at S1 to switch on the pump
Pump switch on delay
Negative differential (S1-S2) to switch on the pump to
dissipate heat
Minimum temperature at S2 to allow activating heat
dissipation
Antifreeze S1 to switch on the pump
Antifreeze hysteresis
Minimum antifreeze time
Overheating temperature S1 to switch off the pump
Overheating hysteresis to switch on the pump
Overheating temperature S2 to switch off the pump
Overheating hysteresis to switch on the pump (S2)
Solar backing 1 operating mode
Solar backing 1 temperature setpoint
8.0
4.0
-50.0
0
0.0
105
3.0
1.0
0
90.0
1
105
1.0
0
35.0
°C
°C
°C
sec.
°C
°C
°C
°C
sec.
°C
°C
°C
°C
-
°C
40.0
40.0
200
999
0.0
105
10.0
20.0
999
200
20.0
105
20.0
1
105
14
7
-58
0
0
221
37
1
0
194
1
221
1
0
95
72
72
392
99
0
221
50
36
999
392
36
221
36
1
221
°F
°F
°F
sec.
°F
°F
°F
°F
sec.
°F
°F
°F
°F
-
°F
1.0
1.0
-50.0
0
-40.0
0.0
-18
0.1
0
0.0
0.1
0.0
0.1
0
-50.0
2
2
-58
0
-72
32
-1
1
0
32
1
32
1
0
-58
F01
F02
F03
F04
F05
F06
F07
F08
F09
F10
F11
F12
F13
F14
F15
Min Max Unit
Standard
1. DESCRIPTION
Microsol II Power
is a
differential temperature controller for automation of solar heating systems
that
becomes simple the management of the temperature of the water in the thermal reservoirs and
swimming pools, beyond the better use of solar energy .
It acts in the command of the water circulation pump through the differential of temperature between
the solar collectors and the thermal reservoir or swimming pool. It makes use of two solar backing
outputs, that can be electric, gas, diesel or also to program the filtering of the swimming pool. The solar
backing 1 is tied with an schedule that allows the configuration of up to four daily events (for each day of
the week independently) and solar backing 2 can optionally be configured for functioning in set with the
schedule. It has functions that prevent the water freezing and overheating in the tubings and a clock
with internal battery to guarantee its synchronism, even in the energy lack, per many years.
Its main atractions are a versatile switched-mode power supply (90 to 264Vac) and powerful relays
(two 16-Amp and one 30-Amp) that directly commands without the need of magnetic contactors motors
up to 1HP and electrical resistances up to 7500W, saving the users investment in its appliances.
®
®
®
The instrument has serial communication for connection with the SITRAD , Wall-Link e Wall-Fi .
2. APPLICATION
• Solar heating pumped systems
MCSOL2PWV01-04T
-12079