DIFFERENTIAL TEMPERATURE
CONTROLLER FOR SOLAR HEATING
WITH TWO SOLAR BACKING
Ver.03
MICROSOL II plus
3. TECHNICAL SPECIFICATIONS
- Power supply:
- Control temperature:
- Resolution:
- Dimensions:
- Operating temperature:
- Operating humidity:
- Sensors:
- Control outputs:
CLASSIFICATION ACCORDING TO IEC60730-2-9 STANDARD:
- Temperature limit of the installation surface:
- Type of construction:
- Automatic action:
Microsol II plus: 115 or 230Vac ± 10% (50/60Hz)
Microsol II L plus: 12 or 24Vac/dc
Sensor 1: -50 to 200°C / -58 to 392°F
Sensors 2 and 3: -50 to 105°C / -58 to 221°F
0.1°C between -10 and 100°C and 1°C in the rest of the range
1°F in all range
71 x 28 x 71mm
0 to 50°C / 32 to 122°F
10 to 90% RH (without condensation)
S1 - Sensor of the collectors
S2 - Sensor of the Reservoir/Pool
S3 -Sensor for control of solar backings
PUMP - Water pump or solenoid - 5(3)A/ 250Vac 1/8HP
AUX1 - solar backing 1 - 5(3)A/ 250Vac 1/8HP
AUX2 - solar backing 2 - 5(3)A/ 250Vac 1/8HP
50°C
Built-in electronic controller
Type 1
- Control of pollution:
- Impulse voltage:
- Temperature for the test of sphere pressure:
- Insulation:
Level 2
1,5kV
75°C and 125°C
Class II
Press
and
simultaneously for two seconds until it appears
, then releasing it. When
appears
press
(tap) and enter the code (123) through keys
and
. To confirm,
press the key
. Through the keys
and
access the other functions and proceed in the same
manner to adjust them. To leave the menu and return to normal operations, press
(long hit) until
appears.
Access code entry
Advanced configuration functions
Events planner operating mode
Scheduling in the events planner
Adjustment of the clock and the day of the week
4. ADVANCED SETTINGS
4.1 - To access the options menu
4.2 - Options
SET
SET
SET
4.2.1.1 - Parameters description
It allows the preferential temperature indication to be configured. You may choose between:
temperature in the sensor 1
temperature in the sensor 2
temperature in the sensor 3
differential temperature (S1-S2)
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.
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.
Indication of the preferential temperature
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
Minimum temperature at sensor 1 to allow switching on the water circulation pump. To deactivate It, just
decrement the value until the message OFF is displayed.
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.
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 It, just increment the value until the
message
is displayed.
Minimum temperature at sensor 2 to allow activating the heat dissipation functions.
1. DESCRIPTION
Differential temperature controller for automation of solar heating systems,
becomes simple the management of the temperature of the water in the thermal reservoirs and
swimming pools, use the solar energy better..
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 is a dedicated instrument that has all its
parameters of configuration protected by access code.
It makes use of two solar backing outputs, that can be electric, gas, diesel or also to program the filtering
of the swimming pool. solar backing 1 is tied with an schedule that allows the configuration of up to four
daily events for each day of the week 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. The instrument has serial
communication for connection with the SITRAD via Internet.
Product complies with CE (European Union) and UL Inc. (United States and Canada).
The UL approval is only valid for Microsol II plus models with 115/230Vac power supply.
• Solar heating pumped systems
MICROSOL II plus
®
*
*
2. APPLICATION
MCSOL2V03-05T
-1
1708
4.2.1 - Settings parameters
Description
Min Max
Unit
CELSIUS
Fun
Standard
FAHRENHEIT
Indication of the preferential temperature
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
-
°C
°C
°C
sec .
°C
°C
°C
°C
sec.
°C
°C
°C
°C
-
3
40.0
40.0
200
999
0.0
105
10.0
20.0
999
200
20.0
105
20.0
1
3
72
72
392
99
0
221
50
36
999
392
36
221
36
1
-
°F
°F
°F
sec.
°F
°F
°F
°F
sec.
°F
°F
°F
°F
-
Standard
Min Max
Unit
1
8.0
4.0
-50.0
0
0.0
105
3.0
1.0
0
90.0
1
105
1.0
0
1
14
7
-58
0
0
221
37
1
0
194
1
221
1
0
0
1.0
1.0
-50.0
0
-40.0
0.0
-18
0.1
0
0.0
0.1
0.0
0.1
0
0
2
2
-58
0
-72
32
-1
1
0
32
1
32
1
0
Solar backing 1 temperature setpoint
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
-50.0
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
95
1
-58
221
0
0
86
1
-58
221
0
1
1
0
-58
392
0
0
0
1
221
36
221
221
999
5
221
36
221
221
999
999
999
3
392
392
9
9
10
247
-58
1
-58
-58
0
0
-58
1
-58
-58
0
1
1
0
-58
-58
-9
-9
-9
1
35.0
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
°C
min.
-
°C
°C
°C
°C
min.
min.
min.
-
°C
°C
°C
°C
°C
-
105
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
°F
min.
-
°F
°F
°F
°F
min.
min.
min.
-
°F
°F
°F
°F
°F
-
E251415
