MICROSOL II plus - WordPress.com · MICROSOL II plus MCSOL2V03-01T ... Solar backing 2 manual...

DIFFERENTIAL TEMPERATURE

CONTROLLER FOR SOLAR HEATING

WITH TWO SOLAR BACKING

Ver.03 UL-Underwriters Laboratories

MICROSOL II plus

MC

SO

L2

V0

3-0

1T

-11

70

8

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 ULInc. (United States and Canada).

• Solar heating pumped systems

MICROSOL II plus

®

2. APPLICATION

3. TECHNICAL SPECIFICATIONS

- Power supply:

- Control temperature:

- Resolution:

- Dimensions:

- Operating temperature:

- Operating humidity:

- Sensors:

- Control outputs:

CLASSIFICATIONACCORDING 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 Lplus: 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 - 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 hysteresis to switch on the pump (S2)

Solar backing 1 operating mode

0

1.0

1.0

-50.0

0

-40.0

0.0

2.9

0.1

0

0.0

0.1

0.0

0.1

0

-

°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

0

2

2

-58

0

-72

32

37

1

0

32

1

32

1

0

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

-

StandardMin 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

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







Cyclic timer on time

Cyclic timer off time

Event schedule linking mode

Minimum S1 temperature alarm

Maximum S1 temperature alarm

S1 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

-

4.2.1.1 - Parameters description

It allows the preferential temperature indication to be configured. You may choose between:

temperature in the sensor 1



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.

4.2.4 - Programming of the events schedule

In this option, you can enter the values for the time periods for each event. The entry of the data depends

on the operating mode configured. You can configure up to four events for each day. For each event, the

start and end time are configured through the options up to , where:

Start time for the first event

End time for the first event

Start time for the 4º event

End time for the 4º event

4.2.3 - Events schedule operating modeIn this option, you can choose how the events planner will operate.

- In this mode, the instrument can configure up to 4 events for every day of theweek.

- In this mode, the instrument keeps the events the same forbusiness days (Monday through Friday), and allows the programming of different events for Saturdayand Sunday.

- In this mode, the instrument keeps the events the same for all of the days of theweek.

Weekly programming

Programming for business days

Daily programming

If you do not need to use the four events, you can configure it to be deactivated, and all you have to do is

increase the off time ( for example) until the indication appears. It is also possible to

configure an event to overlap that it begins in one day and it finishes in the other, and for that you should

increase the off time until the option appears and adjust an event for the next day to start at 00h

and 00min. According to the operating mode configured, the following scheduling possibilities may be

presented.

Sunday

Weekly schedule

Scheduling for business days

Daily schedule

Monday

Tuesday

Wednesday

Thursday

Friday

Saturday

Monday through Friday

Saturday

Sunday

Everyday

Start time for fourth eventEnd time for fourth event

Start time for first eventEnd time for first event

Events that are programmable

4.2.5 - Adjustment of the current time and day of the week

Press the key until the message appears in the visor.

Hit key . The settings will appear in the following order:

Ex.: 12h43min - Friday

Hours

Minutes

Day of the week

HOURS MINUTES DAY OF THE WEEK

SET

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. The hysteresis is fixed at 2°C / 4°F. To

deactivate this function, just decrement the value until the message is displayed

Antifreeze hysteresis

Minimum antifreeze time


Hysteresis for the antifreeze function to switch off the water circulation pump.

Minimum time for which the antifreeze function stays on even if the temperature at sensor 1 returns to

the normal value.

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).

Overheating hysteresis to switch on the pump

.Overheating temperature hysteresis adjustment for sensor 1 to allow switching on the pump again

Overheating temperature S2 to switch off the pump (swiming pool temperature)

Overheating hysteresis to switch on the pump (S2)



It allows setting the overheating temperature of the swimming pool to switch off the water circulation

pump to avoid uncomfortable thermal conditions.

Overheating temperature hysteresis adjustment for sensor 2 to allow switching on the pump again.

It allows setting up the operating mode of the solar backing 1 output. The modes are:

Solar backing 1 working independently from solar backing 2

Solar backing 1 deactivated when solar backing 2 is activated

When this parameter has the value “1” and the solar backing 2 is activated the controller will display the

message AA2. This option is used with solar heating systems containing gas (AUX1 output) and

electrical (AUX2 output) heating backups. In this condition when the controller activates the solar

backing 2 (electrical heating) it will alert the user that solar backing 1 (gas heating) is not working

properly.

Allows setting the activation temperature for solar backing 1.






Hysteresis setting for solar backing 1 activation temperature setpoint.

Lower threshold aimed at preventing an exceedingly low temperature setpoint from being adjusted

inadvertently for solar backing 1.

Upper threshold aimed at preventing an exceedingly high temperature setpoint from being adjusted


Time for which solar backing 1 stays on when activated manually. After this time solar backing 1 returns

to automatic operation.

It allows setting up the operating mode of the solar backing 2 output. The modes are:

Cooling thermostat

Heating thermostat

Cooling thermostat linked to the event schedule

Heating thermostat linked to the event schedule

Cyclic timer with initial state "off”





Cyclic timer on time

Cyclic timer off time

Hysteresis setting for solar backing 2 activation temperature setpoint.

Lower threshold aimed at preventing an exceedingly low temperature setpoint from being adjusted


Upper threshold aimed at preventing an exceedingly high temperature setpoint from being adjusted


Time for which solar backing 2 stays on when activated manually. After this time solar backing 2 returns

to automatic operation.

It allows adjusting the time for which the cyclic timer keeps its output on.

It allows adjusting the time for which the cyclic timer keeps its output off.

Cyclic timer with initial state "off" and linked to the event schedule

Cooling thermostat for heat dissipation to reduce any excess temperature in the water

tank.

Allows setting the activation temperature for solar backing 2.


Event schedule linking mode

Minimum S1 temperature alarm

Maximum temperature alarm on S1

It allows linking the solar backing outputs to one or more of the four daily events. The possible modesare:

Aux 1 linked to events 1, 2, 3 and 4 Aux 1 linked to events 1 and 2Aux 2 linked to events 1, 2, 3, and 4 Aux 2 linked to events 3 and 4Aux 1 linked to event 1 Aux 1 linked to events 1, 2, and 3Aux 2 linked to events 2, 3, and 4 Aux 2 linked to event 4

Temperature for sensor 1 low temperature alarm indication

Indication temperature of high temperature on sensor 1

RS-485 network address

Equipment's network address for communicating with SITRAD® software.

Note: one network must not have different equipment with the same address.

To disable the temperature sensor for the solar backing systems (sensor 3), access the function F03 in

the advanced function menu. Then press the key successively until the message is

displayed. Press to confirm.

After sensor 3 is disabled, solar backing 1 and 2 will be contracted [sic] by sensor 2 (tank/swimming

pool).

If the activation of the water pump is linked to sensor 3 and this sensor is disabled, the controller will

automatically unlink them.

SET




It allows setting sensor 1 (collectors) temperature indication offset.

It allows setting sensor 2 (tanks/swimming pool) temperature indication offset.

It allows setting sensor 3 (solar backing systems) temperature indication offset.

5. FACILITATED ACCESS MENU

5.1 - To enter the menu

Press for two seconds until it appears , then release it.

Through the keys and access the functions and proceed with the adjust of them. To leave the

menu and return to normal operation, press (long hit) until appears.

SET

SET

A B

RS-485 Network

RS-485 Serial Interface

®

Device used to establish theconnection Full Gauge Controls’instruments with the Sitrad .

Instrument

RS-485 Network

Externalmesh

®

Integrating Controllers, RS-485 Serial Interface and Computer

ABPUMP AUX 1 AUX 2

MIC

RO

SO

LII

plu

s

A A

B B

A B

OUT 1 OUT 2 OUT 3

PC

T-4

00

Rp

lus

OUT 4 ALMR

A A

B B

A B

A A

B B

A B

AB AB

A A

B B

A B

Serial interfaceRS-485

Full Gauge

MOD 64

A A

B B

A B

terminalgrounded

Distribution BoxUsed to connect more than one instrument to the Interface. The wire's connections mustbe made in agreement with the following rules: terminal of the instrument connects tothe terminal of the distribution box, that must be connected with the terminal of theInterface. Repeat the action for terminals and , being the cable shield.

AA A

BThe terminal of distribution box must be connected to the respective terminals ofeach instrument.

IMPORTANT

1:2:

3:

According to the chapters of norm IEC 60364:Install on the power supply.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.Install transient suppresors (RC filters) parallel to the loads as to increase the product life of the

relays.

protector against overvoltage

For more information, please contact our Technical Support by e-mail: or byphone +55 51 3475.3308.

[email protected]

Schematic for the connection of supresorsto contactors

Sup

pres

or

A1

A2

A1 and A2 are thecontactor coil terminals.

Schematic for the connection of supresors todirect activation loads

Load

Sup

pres

or For direct activation the maximumspecified current should be takeninto consideration.

5.2 - Functions

Shotcut to adjust the parameter F16

Shotcut to adjust the parameter F22

Water pump start

Allows the facilitated adjust of the solar backing 1 temperature setpoint.

Allows the facilitated adjust of the solar backing 2 temperature setpoint.

It allows to set the operation mode of the water circulation pump, as follows:Water pump always OFFWater pump always ONCirculation 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.

Shotcut to adjust the parameter F13This shortcut is used when the Microsol II plus is installed to control swimming polls heating systems. Inthis case the parameter F13 adjusts the maximum confort temperature of the pool water.

Manual activation of solar backing 1

With this option the output of solar backing 1 is manually activated. The output is deactivated after the time

adjusted in function expires. Upon entering this function again, the manual activation is overridden

and the solar backing 1 returns to automatic operation.

To disable the manual activation just configure the function to "000".

Manual activation of solar backing 2

With this option the output of solar backing 2 is manually activated. The output is deactivated after the time

adjusted in function expires. Upon entering this function again, the manual activation is overridden

and the solar backing 2 returns to automatic operation.

To disable the manual activation just configure the function to "000".

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



Differential temperature (S1-S2)

The selected temperature will be displayed for 15 seconds and then the default indication returns (as per

parameter setting).

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

6.2 - Visualize the current time

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.

7.

8.

SIGNALING

UNIT SELECTION (°C / °F)

Sensor 1 (collectors) disconnected or out of range

Sensor 2 (reservoir /pool) disconnected or out of range

Sensor 3 (solar backings) disconnected or out of range

Temperature for sensor 1 is freezing

Temperature for sensor 1 is overheated

Temperature for sensor 2 is overheated

Configuration parameters not programmed or out of range

Circulation pump in off manual mode

Circulation pump in on manual mode

Sensor 1 high temperature alarm

Sensor 1 low temperature alarm

Solar backing 2 activation alarm

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.

SET

SET

9. WIRING DIAGRAM

PU

MP

AU

X2

AU

X1

CO

MM

ON

1 2 4 5 6 7 8 9 10 11 1231 2 4 5 6 7 8 9 10 11 123

Pump Load 1 Load 2

Sen

sor

1(c

olle

cto

rs)

Sen

sor

2(r

eser

voir

/po

ol)

Sen

sor

3(s

ola

rb

acki

ng

s)

0115V230V

72 mm

Tear dimensionsto position the instrument

in the panel 29m

m

Ser

ial c

om

mu

nic

atio

nR

S-4

85

Powersupply

Loadssupply

Note: The sensor cable length can be increased by the user until 200 meters using PP 2 x 24 AWG

cable.

Above the current specifieduse contactor

To the terminal ofthe distribution box

A B

PROTECTIVE VINYL:

This adhesive vinyl (included inside the packing) protects the instruments against

water drippings, as in commercial refrigerators, for example.

Do the application after finishing the electrical connections.

Remove the protective paper

and apply the vinyl on the entire

superior part of the device,

folding the flaps as indicated by

the arrows.

9 - 89 - 7

MICROSOL II plus115V230V

MICROSOL II L plus12V24V

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