Resol DeltaSol AX Mounting, Connection, Operation

Brand: Resol

Model: DeltaSol AX

Type: Mounting, Connection, Operation

DeltaSol

® AX

www.resol.de

Thank you for buying a RESOL product.

Please read this manual carefully in order to put this controller to the best possible use.

RESOL DeltaSol

® AX

Mounting

Connection

Operation

Application examples

manual

*48000250*

48000250

DeltaSol

® AX

| 2

Contents

Imprint ................................................................................2

Security devices ..................................................................2

Technical data and function survey ..................................3

1. Installation ...................................................................4

1.1 Mounting ......................................................................................... 4

1.2 Electrical connection .................................................................... 4

2. Functions and Settings ...............................................5

2.1 Micro-switch and potentiometer .............................................. 5

2.2 Switch-on temperature difference ............................................ 5

Scope of delivery:

• controllerDeltaSol

® AX

(full kit incl. 2 temperature sensors)

• sparefuseundercover

• accessorybagconsistingofsiliconesealing,fastening

screwsanddowels,strainreliefclampandscrews

• manual

2.3 Manual operation .......................................................................... 5

2.4 Maximum temperature limitation ............................................. 6

2.5 Anti-Freeze protection ................................................................ 6

2.6 Minimum temperature limitation .............................................. 6

2.7 Blinking codes ................................................................................ 6

3. Tips for fault diagnostics ............................................ 7

4. Applications of use ..................................................... 7

5. Annex: Fault diagnostics .......................................... 10

Security advice

Pleasepayattentiontothefollowingsecurityadviceinorder

toavoiddangeranddamagetopeopleandproperty.

Instructions

Attentionshouldbepaid

-tothestatutoryprovisionsforpreventionofindustrial

accidents,

-tothestatutoryprovisionsforenvironmentalprotection,

-totheHealthandSafetyatWorkAct1974

- to Part P of the Building Regulations 2005

- to BS7671 Requirements for electrical installations and

relevantsafetyregulationsofDIN,EN,DVGW,TRGI,TRF

andVDE.

Thisinstructionisexclusivelyaddressedtoauthorised

skilled personnel.

-Onlyqualifiedelectriciansshouldcarryoutelectrical

works.

-Initialinstallationshouldbeeffectedbynamedqualied

personnel

Declaration of conformity

We, RESOL Elektronische Regelungen GmbH, D-45527

Hattingen, declare under our sole responsibility that our

product DeltaSol

® AX complies with the following stan-

dards:

EN55014-1

EN60730-1

Accordingto theregulations ofthe abovedirectives, the

productislabelledwith :

89/336/EWG

73/23/EWG

Hattingen,07.07.2006

RESOLElektronischeRegelungenGmbH,

ppa.GeraldNeuse

DeltaSol

® AX

3 |

Electrostatical discharges can lead to damages of

electronic components!

Dangerousvoltageoncontact!

DeltaSol

® AX

Thanks to its tough and deliberately simple design concept this low priced

differentialcontrollercanbewidelyusedinsolar,heatingandairconditioning

systems.Thelargecontrolrangeandadjustabletemperaturedifferencesensure

thatthisunitcanbeusedinalmostallapplicationswhereswitchingprocesses

arecontrolledbytemperaturedifference.

The outer cover is available with an optional seal to protect the electronics

against dripping water.

The controller checks a temperature diffference ∆T measured by two tem-

perature sensors by comparing this difference with a preadjusted switch-on

difference(adjustablewithintherangeof2...16K).Thecontrolofthesystemis

effectedbyastandardrelay(=changeovercontact),towhichseveralmotorsor

electricalvalvescanbeconnected.Thecontrollerswitches-ON,iftheadjusted

temperaturedifferenceisexceeded;ifthisdifferenceisunderrunby1,6K,the

controller switches-OFF.

130

Technical data

Housing:

plug-in plastic PC-ABS

Protection type: IP20/DIN40050

Ambient temp.: 0 ... 40 °C

Size: Ø130mm,45mmheight

Mounting: wall mounting

Display: 1 function control lamp

Inputs: 2sensorinputsPT1000

Outputs: 1standardrelay(changeover

contact)

Switch-on difference:

∆T2...16Kadjustable

Switch-off difference:

1,6Kbelowswitch-ondifference

Control range: -20 ... +150 °C

Power consumption: max. 4 A

Powersupply:220...240V~

Order indications

RESOL DeltaSol AX 115 211 70

RESOL DeltaSol A X- full kit - 115 211 80

incl. 2 temperature sensors Pt1000 (1xFKP6,1xFRP6)

Accessory

Overvoltage protection

ItishighlyrecommendedtoconnecttheRESOLovervoltageprotectionSP1to

allcollectorsensorsinordertoavoidovervoltages(e.g.bylightning).

RESOL SP1 180 110 10

DeltaSol

® AX

| 4

Theunitshouldbelocatedinternally.Itisnotsuitablefor

installationinhazardouslocationsandshouldnotbesited

neartoanyelectromagneticeld.Pleaseensuresensorcables

andacpowersupplyareseparated.

1. Choose a location, drill two holes of Ø6 mm side by

sidewithadistanceof113mmandtintheenclosed

dowels.

2. Fixthecontrollerbymeansoftheenclosedscrews(4x

40 mm)(pos. 1).

3.Theelectricalconnectionmustbeeffectednow.Power

supplyofthecontroller(210...250V)mustbeeffected

byexternalpowerswitch.

Connection of the sensors at the clamps:

1/2 = sensor1(e.g.collectorsensor)

3/4 = sensor2(e.g.storesensor)

Connection of the consumer to the clamps:

7 = normallyopencontactrelay(RO)

8 = breakcontactrelay(RC)

9 = neutralcontactrelay(N)

ground clamp (collective terminal strip)

ac power supply to the clamps:

10 = neutralconductorN

11 = conductorL

ground clamp (collective terminal strip)

Theguidesoftherequiredinsertionchannelsmustbebroken

awayatthebottomsideofthecover.

Thecablesaretobexedtothehousingbyenclosedstrain

relief supports and screws (pos.2).

If necessary, activate anti-freeze function by jumper. If

protection against dripping water is required insert the

siliconesealingringintothegrooveonthebaseplatetaking

care not to stretch it.

Putonthecoverandscrewit(pos.3).Ifnecessary,adjust

temperature difference ∆T.

Putonhousingcoverandscrewit(pos.4).

1. Installation Warning!

Switch-off power supply before opening

the housing.

housingcover

cover

base

sensor 1

sensor 2

relay(consumer)

acpowersupply

ground clamp

(collectiveterminalstrip)

fuseT4A

1.2 Electrical connection

Insertsealingbandwithoutstrainintothenut

DeltaSol

® AX

5 |

2.1 Micro-Switch and Potentiometer

2. Functions and Settings

Themicro-switch(A)activates(ON)deactivates(OFF)

following functions:

•Manualoperation(micro-switch1)

•Maximumtemperaturelimitation(micro-switch2)

•Anti-freezeprotection(micro-switch3)

•Minimumtemperaturelimitation(micro-switch4)

Potentiometer(B)adjuststhetemperatureforthemaxi-

mum or minimum temperature limitation in °C.

Potentiometer(C)adjuststheswitch-ontemperatureinK

2.3 Manual operation mode

OFF

1234

OFF

1234

OFF

1234

2.2 Switch-on temperature difference

OFF

1234

Thecontrollercheckstheexistingtemperaturedifference

betweentemperaturesensorS1andtemperaturesensor

S2withtheadjustedtemperaturedifference∆Tatthe

potentiometer(C).Thecontrollerswitchesovertherelay

assoonasthetemperaturereachestheadjustednominal

value,theoperatingcontrollampashesgreen.Iftheset

valueisunderrunbyadifferenceof1,6K(hysteresis,cannot

bechanged)thecontrollerswitchestherelayback.

Thefactorysettingfortheswitch-ontemperaturedifference

ispreadjustedto6K.Adjustabletemperaturedifference

withinarangeof2...16K.

OFF

1234

Duringcomissioningandmaintenancetherelaycanbe

switched-onpermanentlybymanualoperation.

Themanualoperationmodeisactivatedanddeactivated

bythemicro-switch.Whenthemanualoperationmodeis

activated,theoperatingcontrollampashesgreen.

Thefactorysettingforthemanualoperationmodeisdeac-

tivated(micro-switchinOFF-position),thecontrollerisin

automatic operation.

DeltaSol

® AX

| 6

Micro-switch3activatesananti-freezeprotectionfunction.

Theanti-freezeprotectionfunctionreactsto thetempe-

rature of sensor S1(e.g. a collector sensor). As soon as

thissensormeasuresatemperaturebelow+4°C,warmer

waterispumpedfromthestoretothecollectortoprevent

damages to the collector; in the course of this the operating

control lamp ashes green.As soon as a temperature of

+5°Cisreached,thepumpswitches-offagain.

Please note:Asthereisonlyalimitedheatquantityof

thestoreavailableforthisfunction,theanti-freezefunction

shouldonlybeusedinregionswithfewdaysoftemperatures

around freezing point.

Thefactorysettingfortheanti-freezefunctionisdeactivated.

(micro-switch in OFF-position).

2.5 Anti-freeze protection

OFF

1234

2.6 Minimum temperature limitation

Micro-switch4activatesthetemperaturelimitationasami-

nimumtemperaturelimitation.Thetemperatureisadjusted

asalimitingvalueforthesensormountedontheterminals

S1atthepotentiometer„temperaturelimitation“.Therelay

won’tswitchuntiltheadjustedtemperatureisreached.This

functionshouldpreferablybeusedincombinationwitha

solidfuelboilerinordertoavoiduegascondensation

withintheboiler.Bymaintainingaminimumtemperature

limitationintheheatgeneratorauegascondensationon

the boilerwalls isavoided.Iftheminimumtemperatureis

underrun,theoperatingcontrollampashesred.

Thefactorysettingfortheminimumtemperaturelimitation

isdeactivated(micro-switchinOFF-position).Whenactiva-

ted,atemperaturelimitationof60°Cispreadjusted.

OFF

1234

OFF

1234

A B

2.4 Maximum temperature limitation

Micro-switch2activatesthetemperaturelimitationasa

maximumtemperaturelimitation.Thetemperatureforthe

temperaturesensormountedonclampS2isadjustedasa

limitingvalueatthepotentiometer(B).Iftheadjustedma-

ximumtemperatureisexceeded,therelayisswitchedover

andsopreventse.g.afurtherstoragecharge(protection

againstoverheating).Ifthemaximumstoretemperatureis

exceeded,theoperatingcontrollampashesred.

Thefactorysettingforthemaximumtemperaturelimitation

isactivated(micro-switchinON-position),Thetemperature

limitationispreadjustedto60°C.Adjustabletemperature

differencewithinarangeof20...90°C.

OFF

1234

OFF

1234

2.7 Blinking codes

TheLEDshowstheactualoperatingstatusofthecont-

roller.

Readyforuse red

Relayactive green

Manualmodeactive green(blinking)

Maximum temperature exceeded red(blinking)

Anti-freezeprotectionactive green(blinking)

Minimum temperature under-run red(blinking)

DeltaSol

® AX

7 |

4. Application examples

Standard solar system with 1 store

Ifthecurrenttemperaturedifference∆Tbetweencollector

sensor S1 and store sensor S2 exceeds the temperature

differenceadjustedatthecontroller,thesolarpumpis

switched-on. Heat is transported from the collector to the

store; in the course of this the temperature difference is

reduced.Iftheadjustedtemperaturedifferenceisunderrun

byadifferenceof1,6K(hysteresis,cannotbechanged),the

pump is switched-off again.

Ifthecontrollerdoesnotworkperfectly,pleasecheckthe

following items:

Ifthecontrollerdoesnotswitchonwhenthereisapower

supply available please check the fuses.The controller is

protectedbyanefuseT4A,whichcanbereplacedafter

havingremovedthehousingandthecover.Asparefuseis

enclosedonthebacksideofthecover.

Pleasecheckthesensors.Sensorswhicharenotconnected,

musthavefollowingresistancevaluesdependingonthegiven

temperature.

3. Tips for fault diagnostics

ResistancevaluesofthePt1000-sensors

S1 S2

2347

RO RC NNL

8910 11

OFF

1234

OFF

1234

OFF

1234

S1=collectorsensor

S2=storesensor

RO=solarpump

bracketforsparefuse

(interiorpartofcover)

Usegroundclampcollectiveterminal

strip!

°C -10 -5 0 5 10 15 20 25 30

W961 980 1000 1019 1039 1058 1078 1097 1117

°C 35 40 45 50 55 60 65 70 75

W1136 1155 1175 1194 1213 1232 1252 1271 1290

°C 80 85 90 95 100 105 110 115

W1309 1328 1347 1366 1385 1404 1423 1442

DeltaSol

® AX

| 8

S1 S2

2347

RO RC NNL

8910 11

Heat exchange

(betweentwostores)

OFF

1234

OFF

1234

Ifthetemperaturedifference∆Tbetweenstore(1)-sensor

S1andstore(2)-sensorS2exceedsthetemperatureadjus-

tedatthecontroller,thecirculationpumpisswitched-on.

Heat is transported from the store (1) into store (2); in the

course of this the temperature difference is reduced.

Iftheadjustedtemperaturedifferenceisunderrunbyadif-

ferenceof1,6K(hysteresis,cannotbechanged),thepump

is switched-off again.

S1 = store(1)sensor

S2 = store(2)sensor

RO= circulationpump

Ifthetemperaturedifference∆TbetweenstoresensorS1

and heating circuit return sensor S2 exceeds the tempera-

turedifferenceadjustedatthecontroller,the3-way-valveis

switched-over.Thereturntemperatureoftheheatingcircuit

israisedbytheheatofthestoresothatlessconventional

energyisnecessarytoreachtherequiredowtemperature;

in the course of this the temperature difference is reduced.

Iftheadjustedtemperaturedifferenceisunderrunbyadif-

ferenceof1,6K(hysteresis,cannotbechanged),thevalveis

switched to initial position.

S1 = storesensor

S2 = heatingcircuitreversesensor

RO= 3-way-valve

Heating circuit - raising the return temperature

S1 S2

2347

RO RC NNL

8910 11

OFF

1234

OFF

1234

Usegroundclampcollectiveterminal

strip!

Usegroundclampcollectiveterminal

strip!

DeltaSol

® AX

9 |

Thecontrollercomparesthetemperatureatthesensorof

thesolidfuelboilerorboilerinsertedinstove(S1)with

thetemperatureatthesensoratstore(S2).Ifthedetec-

ted temperature difference is higher than or equals the

preadjustedvalue∆T,thepump(RO)isswitched-onwhen

simultaneouslythegivenminimumtemperatureisreached

orexceeded.Thetemperaturedifferenceisreduced.

Store charge

S1 S2

2347

RO RC NNL

8910 11

OFF

1234

OFF

1234

OFF

1234

Ifthedifference1,6K(hysterisis,candifferenceisreduced,

cannotbechanged)underrunstheadjustedtemperature

difference,thepumpisswitched-offagain.

S1=boilersensor

S2=storesensor

RO=circulationpump

Usegroundclampcollectiveterminal

strip!

DeltaSol

® AX

| 10

Pumpstartsforashortmoment,switches-off,switches-on

again,etc.(„controllerhunting“)

Isthetemperaturedif-

ference at the controller

too small?

no yes

Wrongpositionofthe

collector sensor?

yes

Change ∆Ton and ∆Toff

accordingly.

Mount the collector sen-

soratsolarow

warmest collector out-

put);

Pumpstartsupverylateandsoonstopsworkingsoon. Thetemperaturedifferencebetweenstoreandcollector

increasesenormouslyduringoperation;thecollectorcir-

cuit cannot dissipate the heat.

Collector circuit pump

defect ?

no yes

Heat exchanger calci-

ed??

yes

Conrtol/replacement

Decalicatiom

Heatexchangerblocked?

yesno Cleaning

Heat exchanger too

small?

yes Newcalculationofthe

dimension.

Change ∆Ton and ∆Toff

accordingly.

Switch-on-temperature

difference ∆Ton too large

no yes

Collectorsensorunfavour-

ableplaced(e.g.contact

sensor instead of immersion

sleevesensor?

o.k.no

Pumpisoverheated,butnoheattransferfromcollector

tothestore,feedowandreturnowareequallywarm,

perhapsalsobubbleinthelines.

Ventsystem;increasesys-

tem pressure to at least

staticprimarypressure

plus0,5bar;ifnecessa-

rycontinuetoincrease,

switch the pump for a

short time off and on.

Airinthesystem?

no yes

Isthecollectorcircuit

blockedatthedirttrap?

yes

Clean the dirt trap

Ifnecessaryactivatetube

collector function.

yes

o.k.

5. Annex: Fault ﬁnding

DeltaSol

® AX

11 |

Stores are cooled during the night.

Doescollectorcircuit

pump run during the

night?

no yes

Check the controller

functions

Collector temperature is

higher at night than am-

bienttemperature?

no yes Check operation of non

returnvalves.

Istroreinsulationsuf-

cient?

yes no

Intensifytheinsulation.

Isstoreinsulationclose

enough to the store?

yes no

Replaceorintesifythe

insulation.

Are the store connceti-

ons insulated?

yes no Insulateconnections.

Warmwateroutow

upwards?

no yes

Change connection and

let the water flow side-

wards or through a siphon

(bowdownwards);less

store losses now?

Thesolarcircuitpumpdoesnotworkalthoughthecoll-

ectorisobviouslywarmerthanthestore.

DoesthecontrolLED

ash?

yes no

Doesthepumpstartup

in manual operation?

yes

Thereisnocurrent;check

fuses/replacethemand

checkpowersupply.

Theadjustedtemperature

difference for starting the

pump is too high; choose

avaluewhichmakesmore

sense.

Isthecurrentofthe

pumpreleasedbythe

controller?

Free the pump using a

screwdriver;inoperation

now?

Isthe pumpdefective -

replace it.

Are the fuses of the

controller o.k.?

Controllerseemstobe

defective-replaceit.

no yes

Replace the fuses.

no yes

o.k.

Controlthereturnow

preventerinwarmwater

circulation- o.k.

Cleaning or replacement.

yes Isthepumpstuck?

yes

DeltaSol

® AX

| 12

Distributed by:

Comments:

Thedesignandthespecicationscanbechangedwithoutadvancenotice.

Theillustrationscandifferfromtheproductionmodel.

RESOL - Elektronische Regelungen GmbH

Heiskampstraße 10

D-45527Hattingen

Tel.: +49(0)2324/9648-0

Fax: +49(0)2324/9648-55

www.resol.de

info@resol.de

Notes

Resol DeltaSol AX Mounting, Connection, Operation

Resol DeltaSol AX Mounting, Connection, Operation

Resol DeltaSol AX Mounting, Connection, Operation

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