resol deltasol pro · the regulator resol deltasol pro is programmed with different basic systems...

RESOL - Elektronische Regelungen GmbH • Heiskampstr. 10 • D-45527 Hattingen • Tel.:+49 (0) 23 24/96 48-0 • Fax: +49 (0) 23 24/96 48-55eMail: [email protected] • Internet: http://www.resol.de

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RESOL DDDDDeltaSeltaSeltaSeltaSeltaSol Pol Pol Pol Pol Prrrrrooooo

Universal temperature differential regulatorfor solar- and heating systemsMounting instructions

DeltaSolpro_montage.p65© RESOL 2196 deltapro_montage.p65No responsibility can be accepted for any errors or technical changes.

• universal regulator forapplication in solar- andheating systems

• function control

• plastic housing with easymounting and compactdimensions

• text display with menucontrol by rotary knob

• 2 relay outputs for pumpspeed

• bus connection for re-mote data displays, datalogger and computer

Technical dataDDDDDeltaSeltaSeltaSeltaSeltaSol Pol Pol Pol Pol PrrrrroooooHousing:plug-in plastic housingSize:150 x 102 x 52 mmProtection type:IP30 / DIN 40050

Display:4-digit plain text display

Breakover points:adjustable by the menu

Control range:-40 ... +180 °C

Ambient temperature:0 ... 40 °CAdjustments:system choice and menu-driven

Inputs:3 sensor inputs Pt1000

This innovative electronic solar regulator RESOL DeltaSol Pro is the central element inthe efficient operation of solar thermal and heating systems.

DDDDDeltaSeltaSeltaSeltaSeltaSol Pol Pol Pol Pol Prrrrrooooo

The regulator RESOL DDDDDeltaSeltaSeltaSeltaSeltaSol Pol Pol Pol Pol Prrrrro o o o o is programmed with different basic systems for uni-versal application in solar- and heating systems; individual programmes may be selectedby the user as necessary. Additional programmes may optionally be added to enableoptimum control of the system.

In designing this regulator great importance has been attached to enclosing the essentialcomponents. The central element is the rotary knob with integrated pushbutton. Incombination with a 4-place display, the user is allowed to access system menus andchange control parameters within set limits. This simple concept gives the user theconfidence to use the regulator without affecting any of the essential operationalfunctions.

This version of the regulator is additionally equipped with the RESOL V-BUS forconnection of additional modules such as remote data display, data logger, PC-adapteras well as a calorimeter and a RS232-interface for direct data output to a PC.

The regulator DeltaSol PRO is also available as an individual OEM-version, so that ad-ditional adaptations to the system are possible.

(to be continued next page)


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Universal temperature differential regulatorfor solar- and heating systemesMounting instructions

Examples DDDDDeltaSeltaSeltaSeltaSeltaSol Pol Pol Pol Pol Prrrrrooooo

Order indication Article-no.

RESOL DDDDDeltaSeltaSeltaSeltaSeltaSol Pol Pol Pol Pol Prrrrrooooo 115 322 90RESOL DDDDDeltaSeltaSeltaSeltaSeltaSol Pol Pol Pol Pol Prrrrro o o o o - complete package -incl. 3 temperature sensors Pt1000 (2 x FKP6, 1 x FRP6) 115 323 10

Patch cord / softwareConnecting cable with special plug and 9-contact connection plug for

the serial PC-interface as well as evaluation software DeltaSol PC

The above-shown icons should only be used for illustration; they only represent achoice of the possible applications.

(continued from page 1)

Outputs:2 relay outputs for pump speed,total power supply 1 x 4 A

Power supply:230 V AC, ± 10 %

Power consumption:max. 4 VAData output:RESOL V-BUS

Accessory:

Overvoltage protection

It is highly recommended to connect this RESOL overvoltage protection SP1 to allcollector sensors in order to avoid overvoltages (e.g. by lightening).

Order indication

RESOL SP1 Article-no.: 180 110 10


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Safety regulations:Please read the following information carefully before installing and operating the regulator. In this way damage to theregulator or the solar system will be avoided. All electrical wiring must comply with the latest IEE regualtions.

1. Mounting Warning:Switch of power supplybefore opening the housing !

Please unlock both snap connections (1) at the top and atthe bottom of the housing by means of a pointed item. Thehousing (2) can now be removed from the base (3). Therequired openings and cable feed-throughs (4) must bebroken through and deburred. The positions for the 4fastening screws (5) must be marked and the base may beattached by means of the enclosed screws and dowels. Theelectrical connection can be effected now.

The unit must only be located internally. It is not suitablefor installation in hazardous locations and should not besited near to any electromagnetic fields.

1.2 Electrical connectionThe power supply to the regulator must only be made byan external power supply switch (last step of mounting!)and the line voltage must be 230 Volt ± 10 % (50...60 Hz).

Pumps, valves, ... can be connected to the consumer-outputs R1 and R2 of the terminals at the base:12 = conductor R214 = conductor R111, 13 = neutral conductor N

ground clamp = protective earth conductor

The power supply is effected at the terminals:15 = neutral conductor N16 = conductor L

ground clamp = protective earth clamp

The temperature sensors (S1 up to S3) will be connectedto the following terminals independently of the polarity :1 / 2 = temperature sensor S23 / 4 = temperature sensor S25 / 6 = additional sensor S3, as for measurement purposesor for additional functions (e.g. further stores)

1.1 Mounting at the wall


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The regulator RESOL DeltaSol Pro is equipped with aRESOL V-BUS-connection for data transmission andenergy supply (terminals 7 and 8, marking of connection„BUS“ at the base-/ isolation plate). One or more RESOLV-Bus modules can be connected by this data bus:

• RESOL WMZ-M1, calorimeter-module.

• RESOL DFA2, temperature- and malfunction display forcomfortable control of the most important measuring dataat remote places.

• RESOL PC-adapter for transmission of the measuring datato a connected PC. Evaluation and visualisation occurs bythe software DeltaSol PC.

Further modules are in preparation.

At the lower front of the regulator is a special plug jackfor the second data output.

A PC can be directly connected by RS232-interface to thisdata output. By means of the free evaluation toolsDeltaSol PC, the values measured by the regulator canbe read-out, processed and visualizased. The softwareenables a comfortable balance and function control of thesystem, but also an editing of the data records for a furt-her processing in other application programmes. Theevaluation tool DeltaSol PC can be downlaoded free ofcharge from the RESOL homepage in the Internet(www.resol.de) or can be directly ordered at RESOL-Elek-tronische Regelungen GmbH together with a patch cord(see page 2).

You will find the location of the special plug jack imprintedon the base/isolation plate at the posititon marked withRS232.

special plug jack, RS232 (in the upper part of thehousingl)

RESOL V-BUS (terminals 7 and 8)

twisted 2-wire cable western plug

chinch plug interface adapter

Sub-D plug

Sub-D connection cablePC, COM-port


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Precision-platin-temperature sensors Pt1000 (FKP andFRP) are used for the RESOL DELDELDELDELDELTTTTTA PA PA PA PA Prrrrrooooo.

The arrangement of the sensors is of great importance tothe total efficiency of the regulator. The collectortemperature should be measured in the upper part of thecollector. In stores with own heat exchanger, the sensormust be directly mounted in the upper part of the heatexchanger. By using external heat exchangers, the sensormust be fixed at the bottom of the store. For individualoperation systems, our product range contains 3 differenttypes of sensors (sensors for installation in presentimmersion sleeves, flatscrew sensors or cylindrical clip-onsensors). The sensor types FK and FR have the sameelectrical features and are available in the same models,They only differ in the connecting cable:

Standard temperature sensors: for installation in presentimmersion sleeves (they are included in complete packages)FKP6 or FRP6: 6 mm, Pt1000

Immersion sensors: available in different length(=immersion depth)FKP60: 60mm immersion depth, chromium-plated copperFKP150: 150mm immersion depth, chromium-platedcopperImportant: The sensors must be completely pushed intothe sleeve and the nut must be slightly tightened.

Cylindrical clip-on sensors: for any pipe diameter, cpl.with fastening collarFKP20 or FRP20Ensure good thermal contact of the sensor with the pipeworkby cleaning the contact area and by applying heat conductionpaste between sensor and pipe. In order to protect the sensorcable against outside temperature influences, it isrecommended to insulate the pipe.

Flatscrew sensors: for installation on flat surfacesFKP8 or FRP8Ensure good thermal contact. Use conduction paste andinsulate the sensors against outside temperature influences.

Indication:In order to avoid overvoltage damage at the collector (e.g.by lightening), it is highly recommendend to use theovervoltage protection RESOL SP1.

FK... : collector sensorFR... : store sensor

FK: 1,5 m weather- and temperature resistant silicone cablefor temperatures between -50 °C ... +180 °C, mostly used forcollectors.

FR: 2,5 m PVC cable for tempertures between-5 °C ... +80 °C, mostly used for stores.

Make sure that all electrical works are carried out accordingto the relevant local and IEE-regulations. The sensor cablescarry low voltages and they must not run together in acable conduit with cables carrying higher voltages than 50Volt. By using longer cables or cable conduits, please usescreened cables. The seensor cables can be lengthened upto 100 m, but the cross section must be 1,5 mm² (or 0,75mm² up to a cable length of 50m); screened cables shouldbe used preferably. The sensors must not get directly incontact with water, please use always immersion sleeves.


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3. Operation:

3.1 Mode switch:The mode switch is positioned at the lower front side of thehousing and enables the following adjustments:

0 relay switched-offAuto automatic operation for relay outputsI relays (R1 and R2) switched-on, permanent

operation

3.3 Control lamps:

3 light emitting diodes with the following symbols arelocated at the front side of the regulator:

control lamp for relaysred: relays (R1 and R2) OFFgreen: relay (R1 or R2) ON

control lamp for malfunctionsflashing: error message

control lamp for manual operationgreen: mode switch in position I

(R1 and R2 ON)red: relays (R1 and R2) OFF

3.2 Rotary knob with integrated pushbuttonand the menu system The regulator RESOL DeltaSol Pro can only be

operated by the rotary knob with integrated pushbutton.The main menu is shown on the display in the outputcondition.5 menus can be selected in the MAIN menU:1. MEASURED VALUES

2. ADJUSTMENTS

3. OPTIONS

4. BALANCE VALUES

5. ERROR MESSAGE

The plain text-display shows a 4-line section of the choosenmenu. The flashing cursor shows the actual position withinthis menu. A small arrow symbol on the upper right sideof the display indicates the possible scroll directions of thecursor. By turning the rotary knob, the cursor runsthrough the menu. By pushing the integrated pushbuttona menu item can be choosen. By turning the rotary knobagain, the standard value can be changed. By pushing oncemore the pushbutton, the modification is finished. Amaladjustment is avoided by a security inquiry check, whichcan be answered with (Y)es or (N)o.

Rotary knob with integrated pushbutton


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4. Basic systems and menu

The regulator RESOL DeltaSol Pro is programmed for 4basic systems:System 1: 1 collector and 1 storeSystem 2: 1 collector and 2 storesSystem 3: 2 collectors and 1 storeSystem 4: swimming-pool system

The basic systems can be adjusted to each system byactivating or deactivating additional options in the menu.Please find a more detailed description of all possiblesystems in point 6 of this instruction.

4.1 Basic systems

4.1 Menu

4.1.1 Main menu

The following submenus are available in the main menu:

Meas. values: Indication of actual sensor temperatures,relays status and time

Adj. values: System selection and adjustment of controlparameter or regulation default

Options: Activation or deactivation of systemdependent additional options

Bal. values: Time- and temperature balances forregulation and system

Error report: Failure report

The measurement values menu offers the possibility todisplay the actual sensor temperatures for S1 up to S3, therelative on-period for relays 1 and 2 and for indication oradjustment of time:

Sensor 1: present temperature at sensor 1 in °C



Relay 1: present relative on period for relay 1in %

Relay 2: present relative on period for relay 2 in %

Time: Indication and adjustment of the actual time

4.1.2 Measured values

Indication:The selective adjusted values and options aresystem dependent and can only be found in thedisplay if the they are available for the choosenbasic system. By chosing BACK at the end of eachmenu, you will get back to the main menu. You willfind a menu structogram on page10.


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4.1.3 Adjusted values

A selection of the basic systems and the adjustment of thecontrol parameter or the regulation default is to be madewithin the adjustment value menu:

System: Selection of the basic systems

min. rot. speed:Minimum rot. speed for relays output 1 and 2

min. runtime: Switch-off delay for relay 1

∆∆∆∆∆Ton1: Switch-on temperature difference for relay 1

∆∆∆∆∆Toff1: Switch-off temperature difference for relay 1

∆∆∆∆∆Ton2: Switch-on temperature difference for relay 2

∆∆∆∆∆Toff2: Switch-off temperature difference for relay 2

Tmax store 1: Maximum temperature for store 1

Tmax store 2: Maximum temperature for store 2

Priority: Priority logic in systems with 2 stores

All available additional options can be activated ordeactivated by replying (Y)es/(N)o in the option menu:

Frost protection: As soon as the temperature falls under +4°C,warmer water from the store wil be pumpedinto the collector in order to avoid frostdamages. If the temperature of +5°C isachieved at the solar panel, the pump switchesoff again.Indication: This function is onlyappropriate for countries with few days oftemperatures at freezing point.

Sp-protection:The store can indeed be charged up bythe collector cooling function above theadjusted maximum temperature, but notexceeding 90°C.

Tube col.: Switch-on logic for improvement of theturn-on characteristics of systems withunfavourable placed collector sensors -prevents a belated switching-on of thesystem. The collector circuit is switched onevery 30 min. for a period of 30 sec.

Recooling: If the maximum store temperature isexceeded, the solar pump is switched onfor cooling purposes in order to avoid anoverheating of the collector. The

4.1.4 Options

Pruntime: Minimum runtime of the solar pump forcharge of the less important store

Pbreak: Waiting time for control of the rise intemperature at the collector in case ofpriority logic

Therm on: Switch-on temperature for thermostatfunction

Therm off: Switch-off temperature for thermostatfunction

Therm on: Switch-on time for thermostat function

Therm off: Switch-off time for thermostat function

min TQ: Minimum temperature for the heat source

Half wave: Control value (please don´t shift)

temperature of the store can rise, but onlyup to 90°C (security switch-off of thestore).

Collector cool.:If the collector temperature rises above theadjusted maximum collector temperature(120°C), the pump remains activated untilthis temperature limit value is againunderrun.

Bypass: The bypass valve is switched on if thetemperature difference between bypasssensor and store sensor is higher than∆Ton2. It is again switched off if thisdifference is lower than ∆Toff2.

Thermos. R2: Use of relay output 2 for the thermostatfunction (cooling- or heating function).

∆∆∆∆∆T R2: Additional temperature differenceregulation for relay output 2

Valve: Deactivation of the pump speed regulationfor relay output 2

Tmin: Minimum temperature of the heat source


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Operation: Operating days of the regulator..

Pump 1: Operating hours of the consumerconnected to relay 1.

Pump 2: Operating hours of the consumerconnected to relay 2.

min S1: Lowest temperature measured attemperature sensor S1.

max S1: Highest temperature measured attemperature sensor S1.





4.1.5 Balance values

Short circuit: Interruption of the sensor lead withindication of the concernedtemperature sensor.

Line break: Interruption of the sensor lead withindication of the concernedtemperature sensor.

EEPROM: Error in memory chip. Modifications willnot be saved in case of a power failure.

RTC Error: Error in real-time clock. Time control ofthe thermostat function is notguaranteed.

Code deletion: Reset status of error messages.

4.1.6 Error report

1. Mounting of the housing

The upper part of the housing must be plugged on thesocket. The ac power supply is effected by an externalswitch.Warning: The snap connections of the housing mustclearly lock.

2. Switching:

The mode switch of the regulator must be set to 0before the power connection can be switched on. Afteran initialisation phase of 5 seconds, the control lamps

illuminate and red for indication of the modeswitch position.

3. Adjustments:

Please adjust now the respective basic system, therequired options and the necessary regulation defaults.Before finishing, please check all adjustments.

4. Test starting of the system and automatic operation

If the switch is set to I, the control lamps illuminate

and green in order to indicate the modeswitch position and the consumer connected toterminals 11 to 14 are supplied with power.

After having finished this test, the mode switch is to beswitched to Auto for the automatic operation.

5. Commissioning


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5.1 Menu


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6. Examples

The regulator (1) determines thetemperature difference between collectorsensor S1 (2) and store sensor S2 (3). Assoon as this difference is higher or identicalto the adjusted temperature difference(∆Ton1), the pump (4) is activated so thatthe store is loaded until the switch-offtemperature difference (∆Toff1) or themaximum store temperature are reached.

The 3. temperature sensor S3 (5) canadditionally be used for measuring purposes(e.g. for measuring the temperature in theupper part of the store).

6.1 System 1, solar system with 1 collector and 1 store:

menu point factory setting selected adjustments

adjusted values / system 1 1adjusted values / min rot.speed

30 %

adjusted values / ∆Ton1 4.0 K

adjusted values / ∆Toff1 2.0 K

adjusted values / Tmax st1 60°C

options / frost protection N

options / store-protection Y

options / tube col. N

options / recooling N

options / collector cooling Y

options / bypass N N

options / thermostat R2 N N

options / ∆T R2 N N

options / Tmin N N


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6.2 System 1, solar system with 1 collector, 1 store and after-heating:

The regulator (1) determines thetemperature difference between collectorsensor S1 (2) and store sensor S2 (3). Assoon as the difference is higher or identicalto the adjusted switch-on temperaturedifference (∆Ton1), the pump (4) isactivated so that the store is loaded untilthe switch-off temperature difference(∆Toff1) or the maximum store temperatureare reached. The 3. temperature sensor S3(6) is used for measurement of thetemperature in the upper part of the store.A recharge of the hot domestic water ispossible by the option thermostat function.


adjusted values / system 1 1

options / thermostat R2 N Y

adjusted values / min rot. speed 30 %



adjusted values / Tmax store1 60°C

adjusted values / therm on 0.0°C 40°C

adjusted values / therm off 0.0°C 45°C

adjusted values / therm on(time) 0:00

adjusted values / therm off(time) 0:00








options / Tmin N N


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6.3 System 1, reverse raising of a heating circuit by solid fuel boiler or boiler inserted in stove:

The regulator (1) determines thetemperature difference between themeasuring sensor of the solid fuel boiler orboiler inserted in stove S1 (2) and thetemperature sensor S2 (3) of the return flow.If this measured temperature difference ishigher or identical to the adjusted value∆Ton1, the return flow temperature isincreased by using the heat of the solid fuelboiler in case of activating a 3-way-valve (4)(heating support). It is simultaneouslycontrolled, if a given minimum temperatureis reached or exceeded in order to avoidflue gas condensation.



options / Tmin N Y

adjusted values / min rot.speed

30 %



adjusted values / Tmaxstore1(return flow)

60°C

adjusted values / min TQ 0.0°C 60°C (recommended)

options / frost protection N N

options / store-protection Y N

options / tube col. N N

options / recooling N N

options / collector cooling Y N


options / thermostat N N



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6.4 System 1, store loading by solid fuel boiler:

The regulator (1) determines thetemperature T1 at the sensor S1 (2) of thesolid fuel boiler- or boiler inserted in stovewith the temperature T2 at the sensor S2 (3)of the store. If the measured temperaturedifference is higher or identical to theadjusted value ∆Ton1, the pump (4) isactivated if the adjusted minimumtemperature is at the same time reached orexceeded (avoidance of flue gascondensation).The store is only loaded upuntil the adjusted maximum temperature.

The 3. temperature sensor S3 (5) can beused for measuring purposes (e. g. formeasurement of the temperature in theupper part of the store).

menu point factory setting selected adjustment


options / Tmin N Yadjusted values / minrot.speed

30 %




adjusted values / min TQ 0.0°C 60°C (recommended)

options / frost protection N N

options / store protection Y N

options / tube collectors N N




options / thermostat N N



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6.5 System 1, solar system with collector cooling function for use of surplus energy:

The regulator (1) determines thetemperature difference between thecollector sensor S1 (2) and the store sensorS2 (3). As soon as the difference is higher oridentical to the adjusted switch-ontemperature difference (∆Ton1), the pump(4) is activated so that the store is loadeduntil the swich-off temperature difference(∆Toff1) is reached. If the maximumtemperature of the store is reached (TmaxSp1), the pump of the solar circuit (4) isswitched off and the pump of the coolingcircuit (5) is activated so that the surplusenergy is carried off.

The 3. temperature sensor S3 (6) can beadditionally used for measuring purposes(e.g. for measurment of the temperature inthe upper part of the store).


adjusted values / system 1 1adjusted values / minrot.speed

30 %





options / store protection Y

options / tube collectors N


options / collector cooling Y Y

options / bypass N

options / thermostat N

options / ∆T R2 N

options / Tmin N


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6.6 System 1, solar system with recooling function for use of surplus energy:

The regulator (1) determines thetemperature difference between thecollector sensor S1 (2) and the store sensorS2 (3). As soon as the difference is higher oridentical to the adjusted switch-ontemperature difference (∆Ton1), the pump(4) is activated and the store is loaded untilthe switch-off temperature difference(∆Toff1) is reached. If the maximum storetemperature (Tmax Sp1) is reached, thepump of the solar circuit (4) remainsactivated. The pump of the cooling circuit(5) is additionally activated in order to carryoff the surplus energy.

The 3. temperature sensor S3 (6) can beadditionally used for measuring purposes(e.g. for measuring the temperature in theupper part of the store).


adjusted values / system 1 1adjusted values / min rot.speed

30 %






options / tube coll. N

options / recooling N Y


options / bypass N

options / thermostat N

options / ∆T R2 N

options / Tmin N


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6.7 System 1, solar system with thermostat function for use of surplus energy:

The regulator (1) determines thetemperature difference between collectorsensor S1 (2) and store sensor S2 (3). Assoon as the difference is higher or identicalto the adjusted switch-on temperaturedifference (∆Ton1), the pump (4) is activatedand the store is loaded until the temperaturedifference (∆Toff1) is reached.If themaximum store temperature (Tmax Sp1) isreached, the pump of the solar circuit (4) isswitched off. The 3. temperature sensor S3(6) is used for temperature measurement inthe upper part of the store and byoptionally activating the thermostat function,the pump of the cooling circuit is switchedon so that the surplus energy is carried off.



options / thermostat R2 N Y





adjusted values / therm on 0.0°C

adjusted values / therm off 0.0°C

adjusted values / therm on(time) 0:00

adjusted values / therm off(time) 0:00








options / Tmin N N


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6.8 System 1, solar system with external heat exchanger:

The regulator (1) determines thetemperature difference between collectorsensor S1 (2) and store sensor S2 (3). Assoon as the difference is higher or identicalto the adjusted switch-on temperaturedifference (∆Ton1), the pump (4) is activated;the primary circuit is heated up. Thetemperature difference between S3 (5) andS2 (3) is simultaneously determined incomparasison with the 2. adjustable switch-on temperature difference (∆Ton2). If thistemperature difference is higher than theadjusted value, the pump (6) is switched onby relay 2 and the store is loaded.



options / bypass N Y














options / valve N N

options / Tmin N N


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6.9 System 1, solar system with bypass:

The regulator (1) determines thetemperature difference between collectorsensor S1 (2) and store sensor S2 (3). Assoon as the difference is higher or identicalto the adjusted switch-on temperaturedifference (∆Ton1), the pump (4) is activatedand the primary circuit is heated up. Thetemperature difference between S3 (5) andS2 (3) is at the same time determined incomparison with the 2. adjustable switch-ontemperature difference (∆Ton2). If thistemperature difference is higher than theadjusted value, the valve (6) is switched onby relay 2 and the store is loaded.


adjusted value / system 1 1

options / bypass N Y

options / valve N Y

adjusted value / min rot. speed 30 %

adjusted value / ∆Ton1 4.0 K

adjusted value / ∆Toff1 2.0 K

adjusted value / ∆Ton2 4.0 K

adjusted value / ∆Toff2 2.0 K

adjusted value / Tmax store1 60°C








options / Tmin N N


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6.10 System 2, solar system with 2 stores (pump control):

The regulator (1) compares the temperatureat the temperature sensor S1 (2) with thetemperatures at S2 (3) and S3 (4). If themeasured temperature differences are higherthan the adjusted switch-on temperaturedifferences ∆Ton1 or ∆Ton2, the respectivepump (5/6) is activated and the affiliatedstore is only loaded up until the adjustedmaximum temperature. Priority canoptionally be given to one store.

If no store is prefered, both stores areindependently loaded up until theirmaximum temperatures are reached (paral-lel loading).










adjusted values / priority 1

adjusted values / Prun 15 min

adjusted values / Pbreak 2 min





options / collector cooling. Y

options / valvel N N


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6.11 System 2, solar system with 2 stores (valve control):

The regulator (1) compares the temperatureat the temperature sensor S1 (2) with thetemperatures at S2 (3) and S3 (4). If themeasured temperature differences arehigher than the adjusted switch-on tem-perature differences ∆Ton1 or ∆Ton2, thepump (5) is activated and by the valve (6)and the respective store is only loaded upuntil the adjusted maximum temperature isreached. By using this system, priority mustbe given to one of the stores, because para-llel loading is not possible.



options / valve N Y








adjusted values / priority 1









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6.12 System 2, solar system with store charge in layers:

The regulator (1) compares the temperatureat the temperature sensor S1 (2) with thetemperatures at S2 (3) and S3 (4). If themeasured temperature differences are higherthan the adjusted switch-on temperature dif-ferences ∆Ton1 or ∆Ton2, the pump (5) isactivated and the respective store is loadedup by the valve (6) until the adjustedmaximum store temperature is reached. Theadjusted priority logic causes a prioritycharge of the upper part of the store.



options / valve N Y








adjusted values / priority 1 1









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6.13 System 3, solar system with east-/west collectors:

The regulator (1) compares thetemperatures at both collector sensors S1(2) and S2 (3) with the store temperature attemperature sensor S3 (4). If one of themeasured temperature differences is higherthan the adjusted switch-on temperaturedifferences ∆Ton1 and ∆Ton2, the respectivepump (5/6) is switched on and the store isloaded.














options / Tmin N N


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4

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6.15 System 3, solar system with 1 collector, 1 combination store and solid fuel boiler:



options / Tmin N Y







adjusted values / min TQ(only for solid fuel boiler)

0.0°C 60°C (recommended)







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7. Test aid:Please check the following items if the regulatorRESOL DDDDDeltaSeltaSeltaSeltaSeltaSol Pol Pol Pol Pol Prrrrrooooo does not work faultlessly :

1. Power supplyThe power supply is guaranteed if at least one control lamplights up.

2. Error reportIf there is a malfunction in the regulation circuit, the

malfunction lamp lights up. By chosing the menu pointERROR REPORT you will get into the submenu, in whicha more detailed error description is indicated:

Short-circuit: Interruption of the sensor lead withindication of the concernedtemperature sensor. The error code -888.8 is indicated for this sensor in themeasurement result menu.

Line break: Interruption of the sensor lead withindication of the concernedtemperature sensor. The error code888.8 is indicated for this sensor in themeasurement result menu.

EEPROM: Error in memory chip.Modifications willnot be saved in case of power failure.

∆∆∆∆∆T > 51.2 K: Plausibility check, temperature diffe-rence is higher than 51,2 K; regulationfunction is guaranteed but the systemmust be checked for defect elements(pump, valves etc.).

Delete the code: Reset status of error messages.

3. RelayPlease check the fuses, if the solar pump is not activated bythe regulator in spite of an existing line voltage and modeswitch position to I. The relay output of the regulator isprotected by 1 can fuses T4 A which are accessible on thebase/isolation plate after removing the housing and can bechanged now (spare fuses are enclosed).

Pt1000-sensor

resol deltasol pro · the regulator resol deltasol pro is programmed with different basic systems...

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