Full Gauge Controls MICROSOL II plus User manual

DIFFERENTIAL TEMPERATURE CONTROLLER
FOR SOLAR HEATING WITH TWO
SOLAR BACKING
Ver. 02
MICROSOL II plus
MCSOL2V02-05T-10793
UL-Underwriters Laboratories
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
swimmingpools,usethesolarenergybetter..
Itactsinthecommandofthewatercirculationpumpthroughthedifferentialoftemperaturebetweenthe
solarcollectors andthe thermal reservoiror swimming pool.It is adedicated instrumentthat has allits
parametersofconfigurationprotectedbyaccesscode.
It makes use of two solar backings outputs, that can be electric, gas, diesel or also to program the
filteringoftheswimmingpool.solarbacking1istiedwithanschedulethatallowstheconfigurationofup
to four daily events for each day of the week and solar backing 2 can optionally be configured for
functioninginsetwiththeschedule.
Ithas functionsthat preventthewater freezingand overheatingin thetubings anda clockwith internal
batterytoguaranteeitssynchronism,evenintheenergylack,permanyyears.Theinstrumenthasserial
communicationforconnectionwiththeSITRAD viaInternet.
ProductcomplieswithCE(EuropeanUnion)andULInc.(UnitedStatesandCanada).
•Solarheatingpumpedsystems
MICROSOL II plus
®
2.APPLICATION
3.TECHNICALSPECIFICATIONS
-Powersupply:
-Controltemperature:
-Resolution:
-Dimensions:
-Operatingtemperature:
-Operatinghumidity:
-Sensors:
-Controloutputs:
CLASSIFICATIONACCORDINGTOIEC60730-2-9STANDARD:
-Temperaturelimitoftheinstallationsurface:
-Typeofconstruction:
-Automaticaction:
115or230Vac±10%(50/60Hz)
-50to105°
-58to221ºF
0.1°Cbetween-10and100°Cand1°Cintherestoftherange
1°Fbetween-58and221°F
71x28x71mm
0to50°C/32to122°F
10to90%RH(withoutcondensation)
S1-Sensorofthecollectors
S2-SensoroftheReservoir/Pool
S3-Sensorforcontrolofsolarbackings
PUMP-Waterpumporsolenoid-5(3)A/250Vac1/8HP
AUX1-solarbacking1-5(3)A/250Vac1/8HP
AUX2-solarbacking2-5(3)A/250Vac1/8HP
50°C
Built-inelectroniccontroller
Type1
-Controlofpollution:
-Impulsevoltage:
-Temperatureforthetestofspherepressure:
-Insulation:
Level2
1,5kV 75°Cand125°C
ClassII
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,
pressthekey .Throughthekeys and accesstheotherfunctionsandproceedinthesame
manner to adjust them. To leave the menu and return to normal operations, press (long hit) until
appears.
Accesscodeentry
Advancedconfigurationfunctions
Eventsplanneroperatingmode
Schedulingintheeventsplanner
Adjustmentoftheclockandthedayoftheweek
4.CONFIGURATIONS
4.1-Toenterintothefunctionsmenu
4.2-Functions
SET
SET
SET
4.2.1-Parameters table
Description Min Max Unit
CELSIUS
Fun
Standard Standard
Min Max Unid
FAHRENHEIT
-
1.0
1.0
0
3.0
0.0
0.1
0.0
0.1
0.1
-
20.0
20.0
999
10.0
99.9
20.0
99.9
20.0
20.0
-
°C
°C
sec.
°C
°C
°C
°C
°C
°C
-
8.0
4.0
0
3.0
99.9
99.9
1.0
1.0
1.0
-
°F
°F
sec.
°F
°F
°F
°F
°F
°F
-
36
36
999
50
212
36
212
36
36
-
2
2
0
38
32
32
1
1
1
-
14
7
0
38
212
212
1
1
1
Indication of the preferential temperature
Differential for turning on the water circulation pump
Differential for turning off the water circulation pump
Minimum time for the pump off
Temperature of the antifreeze for sensor 1
to turn the water circulation pump on
Overheat temperature for sensor 1
to turn the water circulation pump off
Overheated hysteresis for sensor 1
for turning the water circulation pump back on
Overheat temperature for sensor 2
to turn the water circulation pump off
Overheated hysteresis for sensor 2
for turning the water circulation pump back on
Hysteresis of the solar backing 1 operation
Minimum setpoint of the solar backing 1 operation
Maximum setpoint of the solar backing 1 operation
Manual activation time for solar backing 1
Solar backing 2 operation mode
Hysteresis of the solar backing 2 operation
Minimum setpoint of the solar backing 2 operation
Maximum setpoint of the solar backing 2 operation
Cyclical timer time on
Cyclical timer time off
Method for linking the solar backings to the events schedule
Indication offset for the temperature of the sensor 1
Indication offset for the temperature of the sensor 2
Indication offset for the temperature of the sensor 3
Address of the instrument on the RS-485 network
-50.0
-50.0
0
0
0.1
-50.0
-50.0
1
1
0
-5.0
-5.0
-5.0
1
105.0
105.0
999
5
20.0
105.0
105.0
999
999
3
5.0
5.0
5.0
247
°C
°C
min.
-
°C
°C
°C
min.
min.
-
°C
°C
°C
-
-58
-58
0
0
1
-58
-58
1
1
0
-9
-9
-9
1
221
221
999
5
36
221
221
999
999
3
9
9
9
247
°F
°F
min.
-
°F
°F
°F
min.
min.
-
°F
°F
°F
-
-58
1
0
0
0
0
1
221
0
0
1
-58
221
1
-50.0
1
0
0.0
0.0
0.0
1
105.0
0
0
1.0
-50.0
105.0
1
4.2.2 - Parameters description
Thisfunctionallowsthepreferentialtemperatureindicationtobeconfigured.Youmaychoosebetween:
temperatureinthesensor1
temperatureinthesensor2
temperatureinthesensor3
differentialtemperature(S1-S2)
Thisfunctionallowstheadjustmentofthedifferentialtemperature(S1-S2)toactivatethewatercirculation
pump. As the solar collectors receive energy, the temperature in sensor S1 increases. When this
temperatureisatavalueestablishedasbeingabovethetemperatureofsensorS2,thepumpisturnedon
andcirculatesundertheheatedwater,storingitinthereservoir,forexample.
Thisfunction allowsthe adjustmentof the differentialtemperature(S1-S2) toturnoffthe watercirculation
pump. With the pump on, the hot water circulates below and cools upwards. After which time, the
temperaturedifferencebetweenS1andS2tendstodecrease.Whenthisdifferencefallstoanestablished
level,thepumpisturnedoffandthewatercirculationstops.
Indicationofthepreferentialtemperature
Differentialforturningonthewatercirculationpump
Differentialforturningoffthewatercirculationpump
Thisfunctionallowstheadjustmentoftheminimumtimeoffthatthepumpshouldhavebeforebeingturned
on again. This option avoids the pump from being turned on and off in short periods of time, which thus
increasestheusefullifethereof.Thisfunctionalsodefinesthedelayinthepump'sactivationonturningon
thecontroller.
Thisfunctionallowsadjustmenttothetemperatureforformingiceinthecollectors.Whenthetemperature
in the collectors (sensor 1) are very low (Ex.: winter nights), the pump is turned on from time to time, to
prevent the water from freezing in the pipes and damaging them. The hysteresis is set at 2°C/4°F. To
deactivatethisfunctiondecreasethevalueuntilthemessage appearsinthedisplay.
This function allows the adjustment of the overheating temperature of the collectors, to turn off the water
circulation pump. When the temperature in the collectors (sensor 1) is above an established value, the
pumpisturnedofftokeeptheoverheatedwater fromcirculatingthroughthe pipesanddamagingthem (if
PVCpipesareused).
Adjustment of the hysteresis of the overheated temperature of sensor 1 to allow the water pump to be
turnedonagain.
Minimumtimeforthepumpoff
Temperatureoftheantifreezeforsensor1toturnthewatercirculationpumpon
Overheattemperatureforsensor1toturnthewatercirculationpumpoff
Overheatinghysteresisofsensor1toreconnectthewatercirculationpump
Overheattemperatureforsensor2toturnthewatercirculationpumpoff
Overheatedhysteresisforsensor2forturningthewatercirculationpumpbackon
Hysteresisofthesolarbacking1operation
Minimumsetpointofthesolarbacking1operation
Maximumsetpointofthesolarbacking1operation
This function allows the adjustment of the overheating temperature of the pool to turn the water
circulationpumpoff,avoidingthermaldiscomfort.
Adjustmentofthe hysteresisofthe overheatedtemperatureofsensor2 toallowthe waterpumpto be
turnedonagain.
Adjustmentofthehysteresisfortheactivationtemperaturesetpointforsolarbacking1.
Lower limit, the purpose of which is to avoid the accidental regulation of temperatures far below the
setpointofsolarbacking1.
Upper limit, the purpose of which is to avoid the accidental regulation of temperatures far above the
setpointofsolarbacking1.

Timethat solarbacking 1 is activewhen it is activatedmanually.Once this period oftime is over,solar
backing1returnstofunctionautomatically.
Thisfunctionenablesconfiguringthemodeofoperationofthesolarbacking2output.Themodesare:
“0”-thermostatforrefrigeration
“1”-thermostatforheating
“2”-thermostatforrefrigerationhitchedtotheeventschedule
“3”-thermostatforheatinghitchedtotheeventschedule
“4”-cyclictimerwithinitialstateon
“5”-cyclictimerwithinitialstateonhitchedtotheeventschedule
Adjustmentofthehysteresisfortheactivationtemperaturesetpointforsolarbacking2.
Lower limit, the purpose of which is to avoid the accidental regulation of temperatures far below the
setpointofsolarbacking2.
Manualactivationtimeforsolarbacking1
Operationmodeforsolarbacking2
Hysteresisofthesolarbacking2operation
Minimumsetpointofthesolarbacking2operation
Upper limit, the purpose of which is to avoid the accidental regulation of temperatures far above the
setpointofsolarbacking2.
Thisfunctionenablessettingthetimeduringwhichthecyclictimerwillkeepitsoutputon.
Thisfunctionenablessettingthetimeduringwhichthecyclictimerwillkeepitsoutputoff.
Thisfunctionenablessettingtowhichofthe4dailyeventseachsolarbackingoutputwillbehitched.The
possiblemodesare:
“0”-Aux1hitchedtoevents1,2,3,4 “2”-Aux1hitchedtoevents1,2
Aux2hitchedtoevents1,2,3,4 Aux2hitchedtoevents3,4
“1”-Aux1hitchedtoevent 1 “3”-Aux1hitchedtoevents1,2,3
Aux2hitchedtoevents2,3,4 Aux2hitchedtoevent 4
Thisfunctionallowstheindicationoffsetforthetemperatureofsensor1tobeadjusted(collectors).
Maximumsetpointofthesolarbacking2operation
Cyclicaltimertimeon
Cyclicaltimertimeoff
Methodforlinkingthesolarbackingstotheeventsschedule
Indicationoffsetforthetemperatureofthesensor1
Thisfunctionallowstheadjustmentoftheindicationoffsetforthetemperatureofsensor2(reservoirs/pool).
Thisfunctionallowstheindicationoffsetforthetemperatureofsensor3tobeadjusted(solarbackings).
Addressoftheinstrumentinthenetworkforthecommunicationwiththe software.
Remarks:inasinglenetwork,therecannotbemorethanoneinstrumentwiththesameaddress.
(*)Thevalueadjustedinfunction shouldbeobligatorilygreaterthanwhatisadjustedin
function .As such, does not allow invalid adjustments to be made in order to
guaranteeitsperfectfunctioning.
Inthisoption,youcanchoosehowtheeventsplannerwilloperate.
-Inthismode,theinstrumentcanconfigureupto4eventsforeverydayofthe
week. - In this mode, the instrument keeps the events the same for
businessdays(MondaythroughFriday),and allows the programming of differenteventsforSaturday
andSunday. -Inthismode,theinstrumentkeepstheeventsthesameforallofthedaysofthe
week.
Indicationoffsetforthetemperatureofthesensor2
Sensor3temperaturedisplayoffset3
AddressoftheinstrumentonthenetworkRS-485
IMPORTANT:
Weeklyprogramming
Programming for business days
Dailyprogramming
SITRAD®
MICROSOL II plus
4.2.3 - Events schedule operating mode
4.2.4-Programming of the events schedule
Inthisoption,youcanenterthevaluesforthetimeperiodsforeachevent.Theentryofthedatadepends
ontheoperatingmodeconfigured.Youcanconfigureuptofoureventsforeachday.Foreachevent,the
startandendtimeareconfiguredthroughtheoptions upto , where:
Starttimeforthefirstevent
Endtimeforthefirstevent
Starttimeforthe4ºevent
Endtimeforthe4ºevent
Ifyoudonotneedtousethefourevents,youcanconfigureittobedeactivated,andallyouhavetodois
increase the off time ( for example) until the indication appears. It is also possible to
configureaneventtooverlapthatitbeginsinonedayanditfinishesintheother,andforthatyoushould
increasetheofftimeuntiltheoption appearsandadjustaneventfor thenextdaytostartat00h
and 00min.According to the operating mode configured, the following scheduling possibilities may be
presented.
4.2.5 - Adjustment of the current time and day of the week
Pressthekey untilthemessage appearsinthevisor.
Hitkey .Thesettingswillappearinthefollowingorder:
Ex.:12h43min-Friday
Hours
Minutes
Dayoftheweek
To alternate between viewing the temperature of sensor 1, sensor 2, sensor 3 or the temperature
differencebetweensensor1and2(differentialtemperature),press untilthedesiredtemperatureis
showninthedisplay:
temperatureinthesensor1
temperatureinthesensor2
temperatureinthesensor3
differentialtemperature(S1-S2)
HOURS MINUTES DAYOFTHEWEEK
5.FUNCTIONSWHITFACILITATEDACCESS
5.1-Visualizeothertemperatures
SET
Thetemperatureselectedwillbeshowninthedisplayforfifteenseconds,andafterthatperiodoftimehas
ended,thepreferentialindicationwillbeshownagain(asadjustedintheparameter ).
Quickly pressing the key , you can visualize the time set in the controller, the current time will be
shown,followedbytheminutesandthenthedayoftheweek.
Ex.:12h43min-Friday
Hours
Minutes
Dayoftheweek
Pressingthekey ,youcanvisualizethemaximumandminimumtemperaturesforeachsensor,aswell
asthe minimum and maximum temperature differential.On pressing key (short touch), themessage
will be shown showing the temperature of sensor 1 and soon after its minimum and maximum
temperatures,andthenthe temperaturesofsensor 2( ),ofsensor 3( )and thedifferential
().
Ifkey remains pressed,the valuesshall berestarted andthe message shall beshown onthe
display.
5.2-Visualizethecurrent time
minimum and5.3 - Visualize maximum temperatures
SET
5.4 - Set the operating temperatures of the solar backings
(SETPOINTS)
Pressingthekey fortwosecondsmayadjusttheoperatingtemperatureforsolarbacking1andsolar
backing 2, as well as the overheating temperature for sensor 2 (reservoir/pool). A message will be
displayed ,adjusttheoperatingtemperatureforsolarbacking1usingkeys e ,press
toconfirm.Thenthemessage willbedisplayed,adjusttheoperatingtemperatureforsolarbacking
2,pursuanttowhatisdescribedabove.Afterpressingthekey ,themessage willbedisplayed
toadjusttheoverheatedtemperatureforsensor2.
Pressing the key for ten seconds manually activates the output for solar backing 1. This will be
deactivated after the time adjusted in the function . lapses. By pressing key again for 10
seconds,themanualactivationisdisabled,andsolarbacking1resumesautomaticoperation.
Todeactivatethemanualactivation,allyouhavetodoisconfigurefunction withthevalue“000”.
By pressing key for 10 seconds, one can choose the mode of operation of the water circulation
pump.Afterpressingthekey,themessage willbedisplayedandtheusermaythenchoosefromthe
optionslistedbelow,usingkeys and :
5.5 - Manual activation of solar backing 1
5.6-Manualactivationof the watercirculationpump
SET
SET
SET

Circulationpumpalwaysoff
Circulationpumpalwayson
Circulation pump operating in automatic mode without sensor 3 temperature validation. In this
modethecirculationpumpwillbeactivatedonlybythediferentialoftemperature(S1-S2)
Circulation pump operating in automatic mode with sensor 3 temperature validation. In this
mode the circulation pump will be activated by the diferential of temperature (S1-S2) and
whenthetemperatureatsensor1isbiggerthanatsensor3.
Confirmtheselectionbypressingkey .Themessage willbedisplayed,showingtheendof
thefunction.
To disable the solar backing`s temperature sensor (sensor 3) enter the functions menu and access
function .Afterenteringthefunctionpressthe buttonuntilthemessage appearsinthe
display,pressthe keytoconfirmandexit.
Whenthesensor3isdisabledthesolarbackings1and2willbecontrolledbysensor2(reservoir/pool).
If the circulation pump is adjusted for operation with sensor 3 validation and the sensor 3 was
deactivatedthecontrollerwillautomaticallydisablethevalidation.
5.7-Disablingthetemperature sensor 3
SET
SET
6.SIGNALING
7.UNITSELECTION(°C/°F)
Sensor1(collectors)disconnectedoroutofrange
Sensor2(reservoir/pool)disconnectedoroutofrange
Sensor3(solarbackings)disconnectedoroutofrange
Temperatureforsensor1isfreezing
Temperatureforsensor1isoverheated
Temperatureforsensor2isoverheated
Configurationparametersnotprogrammedoroutofrange
Circulationpumpinoffmanualmode
Circulationpumpinonmanualmode
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
tochoosebetween: or andconfirmwithkey .Afterselectingtheunitthe
messagewillappear,andtheinstrumentwillreturntothefunction .Whenevertheunitisaltered,
theparametersshouldbereconfigured,sincetheyassume”standard”values.
SET
SET
8.WIRINGDIAGRAM
PUMP
AUX2
AUX1
COMMON
1245678910 11 12
3
1245678910 11 12
3
Pump Load 1 Load 2
Sensor 1
(collectors)
Sensor 2
(reservoir/pool)
Sensor 3
(solar backings)
0
115V
230V
72 mm
Tear dimensions
to position the instrument
in the panel
29 mm
9-8
9-7
MICROSOL II plus
115V
230V
Serial communication
RS-485
Power
supply
Loads
supply
Note: The sensor cable length can be increased by the user until 200 meters using PP 2 x 24AWG
cable.
Above the current specified
use contactor
To the terminal of
the distribution box
A B
AB
RS-485 Network
RS-485SerialInterface
®
Device used to establish the
connectionFullGaugeControls’
instrumentswiththeSitrad .
Instrument
RS-485 Network
External
mesh
®
Integrating Controllers, RS-485 Serial Interface and Computer
A
B
PUMP AUX1
AUX2
MICROSOLIIplus
AA
BB
AB
OUT1OUT2
OUT3
PCT-400Rplus
OUT4 ALMR
AA
BB
AB
AA
BB
AB
A
BA B
AA
BB
AB
Serial interface
RS-485
Full Gauge
MOD 64
AA
BB
AB
terminal
grounded
Distribution Box
UsedtoconnectmorethanoneinstrumenttotheInterface.Thewire'sconnectionsmust
bemadeinagreement withthefollowing rules:terminal ofthe instrumentconnectsto
theterminal ofthedistributionbox,that must be connected with the terminal of the
Interface.Repeattheactionforterminals and ,being thecableshield.
A
AA
B
Theterminal ofdistributionboxmustbeconnectedtotherespectiveterminals of
eachinstrument.
IMPORTANT
1:
2:
3:
AccordingtothechaptersofnormIEC60364:
Install onthepowersupply.
Sensorcablesand signalcables ofthecomputer maybe joined,butnot inthesameelectricconduit
throughwhichtheelectricinputandtheactivationoftheloadsrun.
Install transient suppresors (RC filters) parallel to the loads as to increase the product life of the
relays.
protectoragainstovervoltage
For more information, please contact our Technical Support by e-mail: or by
phone [phone].
[email protected]
Schematic for the connection of supresors
to contactors
Suppresor
A1
A2
A1 and A2 are the
contactor coil terminals.
Schematic for the connection of supresors to
direct activation loads
Load
Suppresor
For direct activation the maximum
specified current should be taken
into consideration.
PROTECTIVE VINYL:
This adhesive vinyl (included inside the packing) protects the instruments against
waterdrippings,asincommercialrefrigerators,forexample.
Dotheapplicationafterfinishingtheelectricalconnections.
Remove the protective paper
andapplythevinylontheentire
superior part of the device,
foldingtheflapsasindicatedby
thearrows.