Resol DeltaSol DB3-F User Manual

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RESOL DeltaSol® DB3-F

Mounting

Connection

Operation

Troubleshooting

Examples

DB3-F

Thank your for buying this RESOL product. Read this manual carefully to get the best perfomance from this unit.

*48004710*

48004710

DeltaSol

Manual

www.resol.de

DeltaSol® DB3-F

| 2

Safety advice

Please read the following information carefully before installing and operating the controller. In this way damage to the solar system caused by wrong installation will be avoided. Please observe that the mounting is adapted to the characteristics of the building, that the local regulations are respected and is conform with the technical rules

Instructions:

Attention should be paid to

- valid local regulations

Appropriate usage

The controller is to be used in drainback solar thermal systems in compliance with the technical data speciﬁed in these instructions.

Improper use excludes all liability claims.

Table of contents

Safety advice ............................................................................................. 2

Technical data and overview of functions .............................................. 3

1. Installation ...........................................................................................5

1.1 Mounting ......................................................................................................5

1.2 Electrical connection .................................................................................5

1.2.1 Data communication / Bus ........................................................................6

1.2.1 Standard solar system ...............................................................................6

1.2.2 Solar system and backup-heating ........................................................... 7

2. Operation and function .....................................................................8

2.1 Buttons for adjustment .............................................................................8

2.2 System Monitoring-Display ......................................................................8

2.2.1 Channel display ...........................................................................................8

2.2.2 Tool bar ........................................................................................................8

2.2.3 System-Screen ............................................................................................ 9

2.3 Flashing codes .............................................................................................9

2.3.1 System-Screen ﬂashing codes .................................................................9

2.3.2 LED ﬂashing .................................................................................................9

3. Commissioning ................................................................................. 10

4. Control parameters and display channels .....................................11

4.1 Overview of channels .............................................................................11

4.1.1-9 Display channels .......................................................................................12

4.1.10-22 Adjustment channels ...............................................................................13

5. Trouble shooting ...............................................................................17

5.1 Various........................................................................................................18

6. Accessory ..........................................................................................20

Imprint .............................................................................................. 20

DeltaSol® DB3-F

3 |

Controller especially developed for solar drainback systems

• System-Monitoring-Display

• Upto4temperaturesensors

Pt1000

• Heatproductionmeasurement

• RESOLVBus

• Functioncontrol

• User-friendlyoperation

• Easy-to-mounthousingwith

outstanding design

• operatinghourscounterand

thermostat function

Deliveryscope:

1 x DeltaSol® DB3-F

1 x accessory bag

1 x spare fuse T4A 2 x screw and dowel 4 x strain reﬂief and screw

Additionnally included in the accesory bag: 1 x sensor FKP6 2 x sensor FRP6

Housing:

plastic, PC-ABS and PMMA

Protection type: IP 20 / DIN 40050

Ambient temp.: 32 ... 104 °F

Dimensions:172 x 110 x 46 mm

Mounting: wall mounting, mounting into patch-panels is possible

Display: System screen for systems visualisation, 16-segment display, 7-segment display, 8 symbols for system status and operating control lamp

Operation: 3 push buttons at the front of the housing

Functions: Differential temperature controller with optional system functions. Function control, operating hours counter for solar pump, pump speed control and heat production measurement.

Inputs:

for 4 temperature sensors Pt1000

Outputs: 2 standard relays

Bus: RESOL VBus

Power supply: 115 V~, 50 ... 60 Hz

Total switching capacity: 4 (2) A (115) V~

Mode of operation:

Type 1.b Switching capacity:

electromechanical relay: 2 (1) A (115) V~

DeltaSol® DB3-F

| 4

Examples DeltaSol® DB3-F

Standard drain back

systems

Drain back systems with

booster function

Drainback systems with

backup-heating

Forfurtherinformation

on electrical connection, please see chapter 1.

Order note

• DB3:2standard relay, thermostat or booster function, operating hours counter RESOL DeltaSol® DB/3 115 426 07 RESOL DeltaSol® DB/3 -fullkit incl. 3 temperature sensors Pt1000 (1 x FKP6, 2 x FRP6) 115 426 17

DeltaSol® DB3-F

5 |

S1 S2 S3

3456

Te mp. Sensor

Pt1000

LNR1NR2N

201918171615

141312

2 (1) A (115)V~ 2 (1) A (115)V~

VBus

910

1. Installation

1.1 Mounting

front cover

cable gland with strain relief

fastening

display

fuse 4A

push button

WARNING!

Alwaysswitch-offpower supply and

disconnect the controller from the power supply before opening the housing!

The unit must only be located in dry interior locations. It is not suitable for installation in hazardous locations and should not be placed close to any electromagnetic ﬁelds. The controller must additionally be supplied from a doublepole switch with contact gap of at least 3 mm. Please pay attention to separate routing of sensor cables and power supply cables.

1. Unscrew the cross-head screw from the cover and remove it along with the cover from the housing.

2. Mark the upper fastening point on the wall and drill and fasten the enclosed wall plug and screw leaving the head protruding.

3. Hang the housing from the upper fastening point and mark the lower fastening point through the hole in the terminal box (centers on 130 mm). Drill and insert the lower wall plug.

4. Fasten the housing to the wall with lower fastening screw and tighten.

1.2 Electrical connection

sensor terminals

RESOL VBus

grounding clamp

fuse

load terminals

power supply terminals

The power supply to the controller must be carried out via an external power switch (last step!) and the supply voltage must be 115 V~ (50 ... 60 Hz). Flexible cables must be attached to the housing with the enclosed strain relief and the corresponding screws.

The controller is equipped with 2 relays to which loads such as pumps, valves, etc. can be connected:

• Relay 1

18 = conductor R1 17 = neutral conductor N 13 = grounding clamp

• Relay 2

16 = conductor R2 15 = neutral conductor N 14 = grounding clamp

Temperature sensors (S1 to S4) have to be connected to the following terminals (either polarity):

1 / 2 = sensor 1 (e.g. sensor collector 1) 3 / 4 = sensor 2 (e.g. sensor tank 1) 5 / 6 = sensor 3 (e.g. tank top sensor)

7 / 8 = sensor 4 (e.g. return temperature sensor) The power supply connection has to be carried out at the following terminals:

19 = neutral conductor N 20 = conductor L 12 = grounding clamp

Electrostatic discharge can lead to damage to electronic components!

Dangerous voltage!

DeltaSol® DB3-F

| 6

VBus

S1 S2 S3

3456

Te mp. Sensor

Pt1000

LNR1NR2N

201918171615

141312

2 (1) A (115)V~ 2 (1) A (115)V~

VBus

910

1.2.1 Datacommunication/Bus

RESOL VBus®

connection clamps

The controller comes with a RESOL VBus

for data communication and energy supply of external modules. The connection is effected with optional polarity at the clamps marked with „VBus“. Via this data Bus you can install one or more RESOL VBus® modules, e.g.:

• RESOL large display GA3 / SD3

• RESOL Data logger, DL2

• RESOL Data teleindication

Additionaly, the controller can be connected to the PC with the help of a RESOL RS-COM adapter. With the RESOL ServiceCenter Software (RSC) the controller parameters can be changed, measurements can be read out, processed and visualised. The software enables an easy function control and adjustment of the system. A light Version of the software can be downloaded from www.resol.de for free.

1.2.2 Terminal allocation Arrangement 1 Standard solar system with 1 tank, 1 pump and 3 sen-

sors. The sensor S4 / TRF can be optionally used for heat production measurement.

ARR1

Symbol Description

S1 collector sensor S2 tank sensor bottom

S3 tank sensor top

(optional)

S4 / TRF

S4 / TRL sensor for heat production

measurement

(optional)

solar pump

DeltaSol® DB3-F

7 |

VBus

ARR1 with booster

Standard solar system with booster function option

with 1 tank, 2 pumps and 3 sensors. The sensor S4 / TRF can be optionally used for heat production measurement.

S4 / TRF

1.2.3 Terminal allocation Arrangement 2

ARR 2

Symbol Description

S1 collector sensor S2 tank sensor bottom S3 tank sensor top /

thermostat sensor

S4 / TRF sensor for heat production

measurement

(optional)

solar pump

R2 booster pump

Solar system and backup heating with 1 tank, 3 sensors and backup heating. The sensor S4 / TRF can be optionally used for heat production measurement.

Symbol Speciﬁcation

S1 collector sensor

S2 store sensor bottom S3 store sensor top

S4 / TRF sensor for heat production

measurement (optional)

S4 / TRF

R1 R2

solar pump

pump for backup heating

DeltaSol® DB3-F

| 8

2. Operation and function

2.1 Buttonsforadjustment

The controller is operated via the 3 push buttons below the display. The forward-button (1) is used for scrolling forward through the display menu or to increase the adjustment values. The backward-button (2) is similarly used for scrolling backwards and reducing values.

backwards

(selection / adjustment mode)

SET

2.2 System-MonitoringDisplay

Complete Monitoring-Display

2.2.1 Channel display

forwards

In order to access the adjustment mode, scroll down in the display menu and press the forward button (1) for approx. 2 seconds after you have reached the last display item. If an adjustmentvalueis shown on the display, the „SEt“ icon is displayed. Now, you can access the adjustment mode by using button 3.

• Press buttons 1 and 2 in order to select a channel

• Briey press button 3, „SEt“ will ash

• Adjust the value by pressing buttons 1 and 2

• Briey press buttons 3, so that „SEt“ permanently

appears, the adjusted value will be saved.

The system monitoring display consists of 3 blocks: channel display, tool bar and system screen (active arrangement).

channel display

2.2.2 Tool bar

tool bar

The channel display consists of two lines. The upper line is an alpha-numeric 16-segment display (text display) for displaying channel names and menu items. In the lower 7-segment display, the channel values and the adjustment parameters are displayed. Temperatures and temperature differences are indicated in°C or K respectively.

The additional symbols in the tool bar indicate the actual system status.

Symbol standard ﬂashing

relay 1 active

relay 2 active

tank maximum limitation active / maximum tank temperature exceeded

collector cooling function or recooling function active

collector emergency shutdown or tank emergency shutdown active

sensor defective

manual operation active

SET-mode, change of adjustment value is possible

DeltaSol® DB3-F

9 |

2.2.3 System-Screen

System-Screen

The system screen (active arrangement) shows the scheme which has been selected. The screen consists of several system component symbols, which are - depending on the current status of the system - either ﬂashing, permanently shown or „hidden“.

collector

pumps

sensor

tank heat exchanger

collector with collector sensor

tank top sensor

tank

additional symbol burner operation

backup heating (with addi tional symbol)

temperature sensor

pump

tank 1

with heat exchanger

backup-heating with burner symbol

2.3 Flashingcodes

2.3.1 System screen codes

• Pump symbols are ﬂashing during initialization phase

• Sensor symbols are ﬂashing if the corresponding sensor

display channel is selected.

• Sensor symbols are ﬂashing in the case of a sensor fault.

• Burner symbol is ﬂashing if the backup heating is active

2.3.2LEDashingcodes

green: everything OK red/green ﬂashing: initialisation phase manual operation red ﬂashing: sensor fault

(sensor symbol is ﬂashing quickly)

DeltaSol® DB3-F

| 10

3. Commissioning

When the controller is commissionend for the ﬁrst time, the arrangement has to be selected ﬁrst

1. Switch on power supply. During the initialization phase,

the operating control lamp ﬂashes red and green. The

Operation control lamp

backwards

(selection / adjustment mode)

SET

forwards

version number and the language selection menu are displayed.

During initial commissioning, the language has to be selected.

2. - Select the adjustment channel LANG

- Change to the -mode (see. 2.1)

- Select your language

- Save the adjustment by pressing the button

After initialization, the controller is in the automatic mode with typical settings. The pre-programmed system scheme is Arr 1.

3. - select adjustment channel Arr

ARR 1

ARR 1 with booster

ARR 2

- change to the -mode (see 2.1)

- select the arrangement via the Arr-index number

- save the adjustment by pressing the button

Now the controller is ready for operation with typical settings to suit that system and normally the factory settings will give close to optimum operation.

Overview of arrangements:

ARR 1 : standard solar sytem (with booster function option) ARR 2 : solar system with backup heating

DeltaSol® DB3-F

11 |

4. Control parameters and display channels

4.1 Overview of channels

Legend:

Corresponding channel is available.

Corresponding channel is available when the corresponding option is enabled

Please note: Only if temperature sensors are connected, will S3 and S4 be displayed.

channel

INIT x x time period - switch-on conditions

FLL x x time period - ﬁlling time active 12

STAB** x x time period - stabilisation active 12

COL x x temperature collector 12

TST x Temperature tank 12

TSTL x temperature tank base 12

TSTU x temperature tank top 12

S3 x temperature sensor 3 12

TRF

n % x speed relay 1 12

n1 % x speed relay 1 12

h P x operating hours relay 1 13

h P1 x operating hours relay 1 13

h P2 x operating hours relay 2 13

kWh

MWh

ARR 1-2 Arrangement

DT O x x Switch-on temperature difference 13

DT F x x Switch-off temperature difference 13

DT S x x Sset temperature difference 13

RIS x x Rise 13

tDTO x x time period - switch-on conditions 13

tFLL x x ﬁlling time 13

tSTB x x time period - stabilisation 14

OBST*** x booster function option 14

S MX x x maximum temperature tank 1 14

EM x x emergency shutdown collector 1 15

ARR description page

1 2*

active

 

 

 

temperature return sensor 12

temperature sensor 4 12

heat quantity kWh 15

heat quantity MWh 15



Only if the option heat production measurement is activated (OHQM), will the corresponding channel be available.



Only if the option heat production measurement is deactivated (OHQM), will the corresponding channel be available.

MEDT

Only if an antifreeze (MEDT) other than water or Tyfocor LS/G-LS(MEDT0or3) is used, will the channel antifreeze concentration (MED%) be displayed.

channel

OCN x x option collector minimum

CMN x x minimum collector temperature 15

TH O x switch-on temp. thermostat 16

TH F x switch-off temp. thermostat 16

OHQM x HQM option 14

FMAX

MEDT

MED% MEDT MEDT antifreeze concentration 14

n1MN x minimum speed relay 1 16

HND x x manual mode relay 1 16

HND1 x x manual mode relay 1 16

HND2 x x manual mode relay 2 16

LANG x x language 16

Db x XX.XX

ARR description page

1 2

limitation

 

maximum ﬂow rate 14

antifreeze type 14

DeltaSol® DB3-F

| 12

4.1.1 Initialization

INIT:

Initialization active

4.1.2 Fillingtime

FLL:

Filling time active

4.1.3 Stabilization

STAB:

Stabilization

4.1.4 Collector temperature

COL:

Collector temperature Display range: -40 ... +480 °C

Indicates the time adjusted in tDTE, running backwards.

• INIT : Initialization

Indicates the time adjusted in tFLL, running backwards.

• FLL : ﬁlling time

Indicates the time adjusted in tSTB, running backwards.

• STAB : Stabilization

Indicates the collector temperature.

• COL : Collector temperature

4.1.5 Tank temperatures

TSTTSTL,TSTU:

Tank temperatures Display range: -40 ... +480 °F

4.1.6 Sensor 3 and Sensor 4

S3, S4:

Sensor temperatures Display range: -40 ... +480 °F

4.1.7 Other temperatures

TRF:

Other measured temperatures Display range: -40 ... +480 °F

Indicates the tank temperature.

• TSP : tank temperature

• TSPU : tank temperature bottom

• TSPO : tank temperature top

Display of the current temperature at the corresponding additional sensor (without control function).

• S3 : temperature - sensor 3

• S4 : temperature - sensor 4

Please note: Only if the temperature sensors are connected (displayed), will S3 and S4 be displayed.

Display of the current temperature at the sensor.

• TRF : temperature - return

4.1.8 Pump speed

n %, n1 %:

Pump speed Display range: 30 ... 100 %

Display of the current pump speed of the corresponding pump (on DB2 and DB4 only).

• n % : current pump speed (1-pump system)

• n1 % : current pump speed pump 1

DeltaSol® DB3-F

13 |

4.1.9 Operating hours counter

h P / h P1 / h P2:

Operating hours counter Display channel

4.1.10 ∆T-regulation

DTO:

Switch-on temperature diff. Adjustment range: 2...40 Factory setting: 20.0

The operating hours counter accumulates the solar operating hours of the respective relay (h P / h P1 / hP2). Full hours are displayed.

The accumulated operating hours can be set back to zero. As soon as one operating hours channel is selected, the sym-

bol is displayed. Press the SET (3) button for approx. 3 seconds in order to access the RESET-mode of the counter. The display symbol will ﬂash and the operating hours will be set to 0. Conﬁrm the reset with the button in order to ﬁnish the reset.

In order to interrupt the RESET-process, do not press a button for about 5 seconds. The display returns to the display mode.

When the switch-on difference (DTO) is continuously exceeded during the tDTO period, the pump is switched on. When the temperature difference falls below the adjusted switch-off difference (DTF), the controller switches off.

DTF: Switch-off temperature diff. Adjustment range: 1 ... 38 Factory setting 8

4.1.11Timeperiod-switch-onconditions

tDTO:

Time periode - switch-on conditions Adjustment range: 1 ... 100 s Factory setting: 60 s

4.1.12Fillingtime

tFLL:

Filling time Adjustment range: 1 ... 30 min Factory setting: 5 min

Please note: The switch-on temperature difference must be at least 0,5 K higher than the switch-off tempe rature difference.

The parameter tDTO is used for adjusting the time period during which the switch-on condition must be permanentely fulﬁlled.

The ﬁlling time can be adjusted using the parameter tFLL. During this period, the pump runs at 100% speed and the booster pump is additionally switched-on.

DeltaSol® DB3-F

| 14

4.1.13 Stabilization

tSTB: Stabilization Adjustment range: 1 ... 15 min Factory setting: 2 min

The parameter tSTB is used for adjusting the time period during which the switch-off condition will be ignored after the ﬁlling time has ended.

4.1.14Boosterfunctionoption

OBST:

Booster function Adjustment range: ON, OFF Factory setting: OFF

4.1.15 Maximum tank temperature

S MX:

Maximum tank temperature Adjustment range: +40 ... 480

4.1.16Heatproductionmeasurement

OHQM:Heat quantity mea-

surement Adjustment range: OFF ... ON Factory setting: OFF

FMAX: Flow rate in l/min Adjustment range: 0 ... 20 in 0,1-steps Factory setting: 6,0

MEDT: Antifreeze type Adjustment range: 0 ... 3 Factory setting: 1

This function is used for switching on a second pump during ﬁlling the solar system. When solar loading starts, R2 is energized in parallel to R1. After the ﬁlling time (tFLL) has ended, R2 is switched off.

If the adjusted maximum temperature is exceeded, the tank will no longer be loaded in order to avoid damage caused by overheating. If the maximum tank temperature is exceeded,

will be shown.

Please note: The controller is equipped with a tank emergency shutdown function, which prevents the tank from being loaded when the tank temperature exceeds 295 °F.

Heat production measurement is possible if a ﬂowmeter is used. For this purpose, the heat quantity measurement option (OHQM)has to be enabled.

The ﬂow rate should be read from the ﬂowmeter (l/min) and has to be adjusted in the channel FMAX. Antifreeze type and concentration of the heat transfer medium have to be adjusted in the channels MEDTandMED%.

Antifreeze type:

0 : water 1 : propylene glycol 2 : ethylene glycol

3 : Tyfocor

LS / G-LS

MED%: Antifreeze concentration (Vol-) % When MEDT 0 or 3 is used, the parameter MED% is ‚hidden‘. Adjustment range: 20 ... 70 Factory setting: 45

DeltaSol® DB3-F

15 |

kWh/MWh: Heat quantity in kWh / MWh Display channel

4.1.17 Collector emergency temperature Collector emergency shutdown

EM:

Collector emergeny shutdown temperature Adjustment range: 230 ... 400°F Factory setting: 285°F

°F

The ﬂow rate as well as the reference sensors S1 (ﬂow) and S4 (return) are used for calculating the heat quantity supplied. It is shown in kWh in the channel kWh and in MWh in the channel MWh. The overall heat quantity results from the sum of both values (please pay attention to the units!).

Example: 123 kWh + 123 MWh = 123.123 kWh

The accumulated heat quantity can be reset. As soon as one of the display channels of the heat quantity is selected,

the symbol is permanently shown on the display. Press button SET (3) for about 2 seconds in order to access the RESET mode of the counter. The display symbol will ﬂash and the heat quantity value will be set to 0. In order to ﬁnish this process, press the button to conﬁrm.

In order to interrupt the RESET process, no button should be pressed for about 5 seconds. The controller automatically returns to the display mode.

If the adjusted collector emergency shutdown temperature (EM) is exceeded, the controller will switch off the solar pump (R1) in order to protect the system against overheating (collector emergency shutdown). The factoring setting is 285 °F but it can be changed within the adjustment range of 230 ... 400 °F.

(ﬂashing) is displayed.

4.1.18 Collector minimum limitation option

OCN:

Collector minimum limitation Adjustment range: OFF / ON Factory setting: OFF

CMN: Collector minimum temperature Adjustment range: 210 ... 380°F Factory setting: 40°F

4.1.19 Thermostat function (ARR = 2)

backup heating use of surplus energy

The minimum collector temperature is the minimum temperature which must be exceeded for the solar pump (R1) to switch on. The minimum temperature prevents the pump from being switched on too often at low collector temperatures. If the temperature falls below the minimum temperature,

The thermostat function works independently from the solar operation and can be used for using surplus energy or for backup heating.

• THO < THF thermostat function for backup heating

• THO > THF thermostat function for using surplus energy

When the 2nd relay output is active, is displayed.

(ﬂashing) is shown on the display.

THO:

Thermostat switch-on tem perature Adjustment range:

30 ... 205 °F Factory setting: 100°F

THF:

Thermostat switch-off tem pe rature Adjustment range:

30 ... 205 °F Factory setting: 110°F

DeltaSol® DB3-F

| 16

t1 O, t2 O, t3 O:

Thermostat switch-on time Adjustment range: 00:00 ... 23:45 Factory setting: 00:00

4.1.20 Operating mode

t1F,t2F,t3F:

Thermostat switch-off time Adjustment range: 00:00 ... 23:45 Factory setting: 00:00

In order to block the thermostat function for a certain period of time, there are 3 time frames t1 ... t3. If the function should be activated only between e.g. 6:00 and 9:00, set t1 O to 6:00 and t1Fto 09:00. The thermostat function is continuously activated (factory setting). If all time frames are set to 00:00, the thermostat function is continuously activated (factory setting).

MAN/MAN1/MAN2:

Operating mode Adjustment range: OFF, AUTO, ON Factory setting: AUTO

4.1.21Language(LANG)

LANG:

Language choice Adjustment range: dE, En, It, Fr Factory setting: En

For control and service work, the operating mode of the controller can be manually adjusted. For this purpose, select the adjustment value MAN. The following adjustments can be carried out:

• MAN

Operating mode OFF : relay off AUTO : relay in automatic operation ON : relay on

In this channel, different languages are available.

• dE : German

• En : English

• It : Italiano

• Fr : French

(ﬂashing) +

DeltaSol® DB3-F

17 |

S1 S2 S3

3456

Te mp. Sensor

Pt1000

LNR1NR2N

201918171615

141312

2 (1) A (115)V~ 2 (1) A (115)V~

VBus

910

5. Troubleshooting

fuse T4A

Operating control lamp ﬂashes red. The symbol and the are shown.

Sensor fault. An error code instead of a temperature is shown on the sensor display channel.

-88.8888.8

If a malfunction occurs, a message is displayed in the display of the controller:

Warning symbol

Operating control lamp

Operating control lamp off

Check the power supply

o.k.

Cable is broken. Check the cable.

Short-circuit. Check the cable.

Disconnected Pt1000 temperature sen sors can be checked with an ohmmeter. In the following table, the resistance values corresponding to different temperatures are listed.

°F Ω °F Ω

14 961 131 1213 23 980 140 1232 32 1000 149 1252 41 1019 158 1271 50 1039 167 1290 59 1058 176 1309 68 1078 185 1328 77 1097 194 1347 86 1117 203 1366

95 1136 212 1385 104 1155 221 1404 113 1175 230 1423 122 1194 239 1442

Resistance values of the

Pt1000-sensors

The fuse of the controller could be blown. It can be replaced after the front cover has been removed (spare fuse is enclosed in the accessory bag).

DeltaSol® DB3-F

| 18

5.1Various:

The temperature difference between the tank and the collector increases enormously during operation; the collector circuit cannot divert the heat.

Collector circuit pump defective ?

no yes

Check / replace it

Heat exchanger calciﬁed?

yes

Decalify it

Heat exchanger blocked?

yesno

Clean it

The solar circuit pump does not run although the collector is signiﬁcantly warmer than the tank.

Does the control LED ﬂash?

No current; check fuses / replace them and check

yes no

Does the pump start up in manual operation?

yes

power supply.

The adjusted temperature difference for starting the pump is to high; choose a value which makes more sense.

Is the pump current released by the controller?

Is the pump stuck?

yes

Turn the pump shaft using a screwdriver; now passable?

Heat exchanger too small?

yes

Repalce with correctly sized one

Are the controller fuses o.k.?

no yes

Replace the fuses.

Pump is defective replace it

Controller might be defective - replace it.

DeltaSol® DB3-F

19 |

Notes

DeltaSol® DB3-F

6. Accessories

Sensors

Our product range includes high-precision platinum temperature sensors, ﬂatscrew sensors, outdoor temperature sensors, indoor temperature sensors, cylindrical clip-on sensors and irradiation sensors, also as complete sensors with immersion sleeves.

Overvoltage protection device

In order to avoid overvoltage damage at collector sensors (e.g. caused by local lightning storms), we recommend installing the overvoltage protection RESOL SP1.

Flowmeter

If you wish to carry out a heat production measurement, you need a ﬂowmeter for measuring the ﬂow rate in your system.

Distributedby:

RESOL-ElektronischeRegelungenGmbH

Heiskampstraße 10

45527 Hattingen / Germany

Tel.: +49 (0) 23 24 / 96 48 - 0 Fax: +49 (0) 23 24 / 96 48 - 755

www.resol.de info@resol.de

Important notice: The text and drawings in this manual are correct to the best of our knowledge. As faults can never be excluded, please note: Your own calculations and plans, under consideration of the current standards and directives should only be basis for your projects. We do not offer a guarantee for the completeness of the drawings and texts of this manual - they only represent some examples. They can only be used at your own risk. No liability is assumed for incorrect, incomplete or false information and / or any resulting damages.

Please note:

The design and the speciﬁcations can be changed without prior notice. The illustrations may differ from the original product.

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Reprinting/copying

This mounting- and operation manual including all parts is copyrighted. Another use outside the copyright requires the approval of RESOL - Elektronische Regelungen

GmbH. This especially applies for copies, translations,

micro ﬁlms and the storage into electronic systems.

Editor: RESOL - Elektronische Regelungen GmbH

Resol DeltaSol DB3-F User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual