Resol DeltaSol SLT Manual For The Specialised Craftsman

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Beginning with rmware version 1.04

Solar and heating controller

Manual for the specialised craftsman

Installation Operation Functions and options Troubleshooting

SLT

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Thank you for buying this RESOL product. Please read this manual carefully to get the best performance from this unit.

Please keep this manual safe.

*11207361*

11207361

Manual

www.resol.com

Safety advice

Please pay attention to the following safety advice in order to avoid danger and damage to people and property.

Instructions

Attention must be paid to the valid local standards, regulations and directives!

Information about the product

Proper usage

The solar controller is designed for use in solar thermal systems and heating sys-

tems in compliance with the technical data specied in this manual.

Improper use excludes all liability claims.

CE Declaration of conformity

The product complies with the relevant directives and is therefore labelled with the CE mark. The Declaration of Conformity is available upon request, please contact the manufacturer.

Note:

Strong electromagnetic elds can impair the function of the device.

Î Make sure the device as well as the system are not exposed to strong

electromagnetic elds.

Subject to technical change. Errors excepted.

Target group

These instructions are exclusively addressed to authorised skilled personnel.

Only qualied electricians should carry out electrical works. Initial installation must be effected by the system owner or qualied personnel

named by the system owner.

Description of symbols

WARNING!

Signal words describe the danger that may occur, when it is not avoided.

• WARNING means that injury, possibly life-threatening injury, can occur.

• ATTENTION means that damage to the appliance can occur.

Î Arrows indicate instruction steps that should be carried out.

Warnings are indicated with a warning triangle!

Î They contain information on how to avoid the danger

described.

Note:

Notes are indicated with an information symbol.

Solar and heating controller DeltaSol® S LT

The DeltaSol

SLT effortlessly controls even complex systems. 27 pre-congured system layouts with numerous pre-programmed optional functions such as thermal disinfection or zone loading enable adaptation to the individual system requirements.

Contents

1 Overview ..............................................................................................4

1.1 Optional functions .......................................................................................................5

2 Installation ...........................................................................................5

2.1 Mounting ........................................................................................................................5

2.2 Electrical connection ...................................................................................................6

2.3 Data communication / Bus ..........................................................................................6

2.4 MicroSD card slot ........................................................................................................7

2.5 Mini-USB port ...............................................................................................................7

2.6 LAN interface (optional) ............................................................................................7

3 Step-by-step parameterisation ..........................................................7

4 Operation and function ......................................................................8

4.1 Buttons and adjustment dial ......................................................................................8

4.2 Microbutton for manual mode and holiday mode ................................................ 8

4.3 Control lamp .................................................................................................................9

4.4 Selecting menu points and adjusting values ...........................................................9

4.5 Menu structure ...........................................................................................................13

5 Commissioning ..................................................................................14

5.1 Basic systems and hydraulic variants .....................................................................16

5.2 Overview of relay and sensor allocation ..............................................................17

6 Main menu .........................................................................................21

7 Status ..................................................................................................21

7.1 Meas. / Balance values .................................................................................................21

7.2 Solar ..............................................................................................................................22

7.3 Arrangement ...............................................................................................................22

7.4 Heating .........................................................................................................................22

7.5 Messages ......................................................................................................................22

7.6 Ethernet .......................................................................................................................24

7.7 Service ..........................................................................................................................24

The operation via 2 main buttons and 1 adjustment dial, the Lightwheel

, still follows the well-known operating concept. The multicoloured LED, integrated in the Lightwheel®, offers many possibilities to signal different system states. The MicroSD card slot and the 2 microbuttons for quick access to the manual mode and the holiday function are located underneath the slidable housing cover, the SLider.

8 Solar ....................................................................................................24

8.1 Basic solar settings .....................................................................................................24

8.2 Solar optional functions ............................................................................................27

8.3 Holiday function .........................................................................................................40

8.4 Solar expert menu .....................................................................................................41

9 Arrangement .....................................................................................41

9.1 Optional functions .....................................................................................................41

10 Heating ...............................................................................................50

10.1 Demands ......................................................................................................................50

10.2 Optional functions .....................................................................................................50

11 HQM ...................................................................................................54

12 Basic settings .....................................................................................55

13 MicroSD card .....................................................................................58

14 Manual mode .....................................................................................60

15 User code ........................................................................................... 60

16 In- / Outputs ........................................................................................60

16.1 Inputs ............................................................................................................................61

16.2 Outputs ........................................................................................................................61

17 Troubleshooting .................................................................................63

18 Accessories ........................................................................................66

18.1 Sensors and measuring instruments ......................................................................67

18.2 VBus

accessories ......................................................................................................67

18.3 Interface adapters ......................................................................................................68

19 Index ...................................................................................................69

1 Overview

• 4 relay outputs (incl. 1 extra-low voltage relay)

• 4 inputs for Pt1000, Pt500 or KTY temperature sensors

• Inputs for 1 analogue Grundfos Direct Sensor™ and 1 FlowRotor

• 1 V40 impulse input (also usable as a Pt1000, Pt500 or KTY tempera-

ture sensor input)

• 2 PWM outputs for speed control of high-efciency pumps

• MicroSD card slot, LAN interface (optional), mini-USB port

• Automatic function control according to VDI 2169

166

110

Technical data Inputs: 4 inputs for Pt1000, Pt500 or KTY temperature sensors, 1 analogue

Grundfos Direct Sensor™, 1 FlowRotor, 1 V40 impulse input (also usable as a Pt1000, Pt500 or KTY temperature sensor input)

Outputs: 3 semiconductor relays, 1 potential-free extra-low voltage relay, 2 PWM outputs (switchable to 0-10 V)

PWM frequency: 512 Hz PWM voltage: 10.8 V Switching capacity per relay:

1 (1) A 240 V~ (semiconductor relay)

1 (1) A 30 V⎓ (potential-free relay)

Total switching capacity: 3 A 240 V~ Power supply: 100 … 240 V~ (50 … 60 Hz) Supply connection: type Y attachment Standby: 0.68 W (without LAN interface), 1.43 W (with LAN interface) Temperature controls class: I

130

Energy efciency contribution: 1 %

Mode of operation: Typ 1.B.C.Y Rated impulse voltage: 2.5 kV Data interface:

RESOL VBus

VBus

, MicroSD card slot, LAN interface (optional), mini-USB port

current supply: 60 mA

Functions: DT control, pump speed control, heat quantity measurement, operating

hours counter for the relays, tube collector function, thermostat function, store loading in layers, priority logic, drainback option, booster function, heat dump function, thermal disinfection function, PWM pump control, function control according to VDI 2169.

Housing: plastic, PC-ABS and PMMA Mounting: wall mounting, also suitable for mounting into patch panels Display:

full graphic display, control lamp (Lightwheel

Operation: 4 push buttons at the front and 1 adjustment dial (Lightwheel

) and background illumination

)

Protection type: IP 20 / DIN EN 60529 Protection class: I Ambient temperature: 0 … 40 °C Degree of pollution: 2 Dimensions: 110 x 166 x 47 mm

1.1 Optional functions

2 Installation

2.1 Mounting

Solar

Bypass External heat exchanger Tube collector Target temperature Antifreeze Afterheating suppression Parallel relay Cooling mode Drainback Twin pump

Heat dump

Flow rate monitoring Pressure monitoring

Arrangement

Parallel relay Mixer Zone loading Error relay

Heat exchange

Solid fuel boiler Circulation Return preheating Function block

Heating

Thermal disinfection

DHW heating

WARNING!

Electric shock! Upon opening the housing, live parts are exposed!

Î Always disconnect the controller from power supply

before opening the housing!

Note:

Strong electromagnetic elds can impair the function of the device.

Î Make sure the device as well as the system are not exposed to strong

electromagnetic elds.

The unit must only be located in dry interior rooms. The controller must additionally be supplied from a double pole switch with contact

gap of at least 3 mm. Please pay attention to separate routing of sensor cables and mains cables. In order to mount the device to the wall, carry out the following steps:

Î Unscrew the crosshead screw from the cover and remove it along with the

cover from the housing.

Î Mark the upper fastening point on the wall. Drill and fasten the enclosed wall

plug and screw leaving the head protruding.

Î Hang the housing from the upper fastening point and mark the lower fastening

points (centres 130 mm). Î Insert lower wall plugs. Î Fasten the housing to the wall with the lower fastening screw and tighten. Î Carry out the electrical wiring in accordance with the terminal allocation, (see

page 6). Î Put the cover on the housing. Î Attach with the fastening screw.

2.2 Electrical connection

WARNING!

Electric shock!

Upon opening the housing, live parts are exposed!

Installation Indications, functions and options

Î Always disconnect the controller from power supply

before opening the housing!

ATTENTION!

ESD damage!

Electrostatic discharge can lead to damage to electronic components!

Î Take care to discharge properly before touching the

inside of the device! To do so, touch a grounded surface such as a radiator or tap!

Note:

Connecting the device to the power supply must always be the last step of the installation!

CommissioningOperation and function

Note:

The pump speed must be set to 100 % when auxiliary relays or valves are connected.

The controller is supplied with power via a mains cable. The power supply of the

device must be 100 … 240 V~ (50 … 60 Hz). The controller is equipped with 4 relays in total to which loads such as pumps,

valves, etc. can be connected:

• Relays 1 … 3 are semiconductor relays, designed for pump speed control:

• Conductor R1 … R3

• Neutral conductor N

• Protective conductor ⏚

• Relay 4 is a potential-free low voltage relay Depending on the product version, mains cables and sensor cables are already con-

nected to the device. If that is not the case, please proceed as follows:

Temperature sensors have to be connected to the terminals S1 … S4 and GND

(either polarity). Connect the Grundfos Direct Sensor™ to the S6 input.

Messages

Connect the FlowRotor to the S7 input. A V40 owmeter can be connected to the terminals S5 / V40 and GND (either po-

larity). The terminals marked PWM are control outputs for a high-efciency pump (convertible to 0-10 V signal outputs, see page 61).

T4A

Sensors

1234

GND

S5/V40

56789

PWM A

PWM B

0-10 V

10 11

VBus

IP 20

VBus

R1-R3|1 (1) A 240 V~R4|1 (1) A 30V

R3R2R1

R3 R2 R1 L

N N N N

100 ... 240 V

50-60 Hz

The mains connection is at the terminals: Neutral conductor N Conductor L Protective conductor ⏚

Note:

For further information about heat quantity measurement with a Grundfos

Direct Sensor™ see page 54.

Note:

The connection depends on the system layout selected (see page 17).

Note:

For more details about the initial commissioning procedure see page 7.

2.3 Data communication / Bus

The controller is equipped with the RESOL VBus

for data transfer and energy

supply to external modules. The connection is carried out at the 2 terminals marked VBus (any polarity).

One or more RESOL VBus

modules can be connected via this data bus, such as:

• RESOL DL2 Datalogger

• RESOL DL3 Datalogger Furthermore, the controller can be connected to a PC or integrated into a network

via the RESOL VBus® / USB or VBus® / LAN interface adapter (not included). Different solutions for visualisation and remote parameterisation are available on the RESOL website www.resol.com. On the website, rmware updates are also available.

Note:

More accessories in page 66.

2.4 MicroSD card slot

The controller is equipped with a MicroSD card slot. With a MicroSD card, the following functions can be carried out:

• Store measurement and balance values onto the MicroSD card. After the transfer to a computer, the values can be opened and visualised, e. g. in a spreadsheet.

• Prepare adjustments and parameterisations on a computer and transfer them via the MicroSD card.

• Store adjustments and parameterisations on the MicroSD card and, if necessary, retrieve them from there.

• Download rmware updates from the Internet and install them on the controller via MicroSD card.

MicroSD card slot

A MicroSD card is not included, but can be purchased from the manufacturer.

Note:

For more information about using a MicroSD card, see page 58.

2.5 Mini-USB port

The mini-USB port can be used for connecting the controller to a PC. It enables a fast transmission of system data for processing, visualising and archiving as well as the parameterisation of the controller. Different solutions for visualisation and remote parameterisation are available on the RESOL website www.resol.com.

2.6 LAN interface (optional)

The controller is equipped with a LAN interface for connecting it to a computer or

router by means of a network cable (CAT5e, RJ45).

For more information about the LAN interface, see page 56.

3 Step-by-step parameterisation

The DeltaSol® SLT is a controller that offers a broad variety of functions to the user. At the same time, the user has a lot of freedom in conguring them. Therefore, to set up a complex system, careful planning is required. We recommend drawing a

sketch of the system rst.

If planning, hydraulic construction and electrical connection have all been carried out successfully, proceed as follows:

1. Running the commissioning menu

The commissioning menu is run after the rst connection and after every reset. It will request the following basic adjustments:

• Menu language

• Temperature unit

• Volume unit

• Pressure unit

• Energy unit

• Auto DST

• Time

• Date

• Selection: System or Scheme

• Scheme number (if selection = Scheme)

• Solar system (if selection = System)

• Hydraulic variant (if selection = System) At the end of the commissioning menu, a security enquiry follows. If the security

enquiry is conrmed, the adjustments are saved. For further information about the commissioning menu see page 14.

2. Registering sensors

If a owmeter, a ow switch, a FlowRotor and / or a Grundfos Direct Sensor

connected, these have to be registered in the Inputs / Outputs menu. For detailed information about the registration of sensors see page 61.

are

InstallationIndications, functions and optionsMessages Commissioning Operation and function

3. Activating solar optional functions

The basic solar system has been adjusted during commissioning. Now, optional

Installation Indications, functions and options

functions can be selected, activated and adjusted. Free relays can be allocated to optional functions which require a relay. The control-

ler always suggests the numerically smallest free relay. Sensors can be allocated to more than one function. For further information about the solar optional functions see page 27.

4. Activating optional arrangement functions

Now, optional functions for the non-solar part of the arrangement can be selected, activated and adjusted.

Free relays can be allocated to optional functions which require a relay. The controller always suggests the numerically smallest free relay.

Sensors can be allocated to more than one function.

CommissioningOperation and function

For further information about the optional arrangement functions see page 41.

5. Activating heating optional functions

For the heating part of the arrangement, optional functions can be selected, activated and adjusted.

To optional functions which require one or more relays, the corresponding number of free relays can be allocated. The controller always suggests the numerically smallest free relay.

Sensors can be allocated to more than one function. For more information about heating optional functions, see page 50.

Messages

4 Operation and function

4.1 Buttons and adjustment dial

The controller is operated via 2 buttons and 1 adjustment dial (Lightwheel®) below the display:

Left button (⟲) - escape button for changing into the previous menu Right button (✓) - conrming / selecting Lightwheel

4.2 Microbutton for manual mode and holiday mode

The controller is equipped with 2 microbuttons for quick access to the manual mode and the holiday function. The microbuttons are located underneath the slidable housing cover, the SLider.

Microbutton ☛ : If the microbutton ☛ is briey pressed, the controller changes to

Microbutton ⛁ : The microbutton ⛁ is used for activating the holiday function

- scrolling upwards / scrolling downwards, increasing adjustment values / reducing adjustment values

the manual mode menu (see page 60).

(see page 40). If the microbutton is pressed and held down for approx. 3 s, the adjustment channel Days of absence appears, allowing to enter the number of days for an absence. If the parameter is set to a value higher than 0, the function becomes active using the adjustments that have previously been made in the Holiday menu. The days will be counted backwards at 00:00. If the value is set to 0, the function is deactivated.

4.3 Control lamp

The controller is equipped with a multicolour LED in the centre of the Lightwheel indicating the following states:

Colour Permanently shown Flashing

Green

Red

Yellow

Everything OK Manual mode: at least one relay in manual oper-

Holiday function

active

ation

Sensor line break, sensor short circuit,  ow rate

monitoring, overpressure, low pressure

DT too high, night circulation, FL / RE interchanged, store maximum temperature exceeded, update in progress, MicroSD card writing error

4.4 Selecting menu points and adjusting values

During normal operation of the controller, the display is in the status menu. If no button is pressed for 1 min, the display illumination goes out. After 3 more

minutes, the controller switches to the Status menu. In order to get from the Status menu into the Main menu, press the left button

(⟲)! Press any key to reactivate the display illumination. In order to scroll through the

display channels, turn the Lightwheel

Values and adjustments can be changed in different ways: Numeric values can be adjusted by means of a slide bar. The minimum value is indi-

cated to the left, the maximum value to the right. The large number above the slide bar indicates the current adjustment. By turning the Lightwheel

, the upper slide bar

can be moved to the left or to the right. Only after the adjustment has been con rmed by pressing the right button (✓) will

the number below the slide bar indicate the new value. The new value will be saved if it is con rmed by pressing the right button (✓) again.

active area

inactive area

When 2 values are locked against each other, they will display a reduced adjustment range depending on the adjustment of the respective other value.

In this case, the active area of the slide bar is shortened, the inactive area is indicated as a dotted line. The indication of the minimum and maximum values will adapt to the reduction.

InstallationIndications, functions and optionsMessages Commissioning Operation and function

If the symbol » is shown behind a menu item, pressing the right button (✓) will open a new sub-menu.

Installation Indications, functions and options

If only one item of several can be selected, they will be indicated with radio buttons.

When one item has been selected, the radio button in front of it is  lled.

If more than one item of several can be selected, they will be indicated with check-

CommissioningOperation and function

boxes. When an item has been selected, an x appears inside the checkbox.

If further menu items are available and the symbol is indicated on the upper right-hand side of the display, more menu items can be accessed by turning the Lightwheel

Adjusting the timer

When the Timer option is activated, a timer is indicated in which time frames for the function can be adjusted.

In the Day selection channel, the days of the week are available individually and as frequently selected combinations.

If more than one day or combination is selected, they will be merged into one combination for the following steps.

The last menu item after the list of days is Continue. If Continue is selected, the timer menu opens, in which the time frames can be adjusted.

Adding a time frame:

In order to add a time frame, proceed as follows:

Î Select New time frame

Messages

Î Adjust Start and Stop for the desired time frame.

The time frames can be adjusted in steps of 5 min.

Î In order to save the time frame, select Save and

con rm the security enquiry with Yes.

Î In order to add another time frame, repeat the

previous steps.

6 time frames can be adjusted per day or combination.

Copying a time frame:

In order to copy time frames already adjusted into another day / another combination, proceed as follows:

Î Choose the day / The combination into which the

time frames are to be copied and select Copy from.

A selection of days and / or combinations with time frames will appear.

Î Select the day or combination from which the

time frames are to be copied.

All time frames adjusted for the selected day or combination will be copied.

If the time frames copied are not changed, the day or combination will be added to the combination from which the time frames have been copied.

InstallationIndications, functions and optionsMessages Commissioning Operation and function

Î Press the left button (⟲) in order to get back to

the day selection.

Changing time frames:

In order to change a time frame, proceed as follows:

Î Select the desired time frame.

Installation Indications, functions and options

Resetting the timer:

In order to reset time frames adjusted for a certain day or combination, proceed as follows:

Î Select the desired day or combination.

Î Make the desired change.

Î In order to save the time frame, select Save and

con rm the security enquiry with Yes.

CommissioningOperation and function

Removing a time frame:

In order to delete a time frame, proceed as follows:

Î Select the time frame that is to be deleted.

Î Select Delete and con rm the security enquiry

with Ye s.

Messages

Î Select Reset and con rm the security enquiry

with Ye s.

The selected day or combination will disappear from the list, all its time frames will be deleted.

In order to reset the whole timer, proceed as follows:

Î Select Reset and con rm the security enquiry

with Ye s .

All adjustments made for the timer are deleted.

4.5 Menu structure

Main menu

Status

Solar

Arrangement

Heating

HQM

Basic settings

SD card

Manual mode

User code

In- / Outputs

Solar

Basic setting

Optional functions

Function control

Holiday function

Expert

Arrangement

Optional functions

Heating

Demands

Optional functions

Basic settings

Language

Auto DST

Date

Time

Temp. unit

Vol. unit

…

Basic setting

System

Collector

Store

Loading logic

Optional functions

Parallel relay

Mixer

Zone loading

Error relay

…

Parallel relay

Relay

Reference relay

Overrun

Delay

Speed

Inverted

…

The menu items and adjustment values selectable are variable depending on adjustments already made. The gure only shows an exemplary excerpt of the complete menu in order to visualise the menu structure.

InstallationIndications, functions and optionsMessages Commissioning Operation and function

In- / Outputs

Inputs

Outputs

5 Commissioning

When the hydraulic system is  lled and ready for operation, connect the controller

to the mains. The controller runs an initialisation phase in which the Lightwheel

Installation Indications, functions and options

 ashes red.

When the controller is commissioned or when it is reset, it will run a commissioning menu after the initialisation phase. The commissioning menu leads the user through the most important adjustment channels needed for operating the system.

Commissioning menu

The commissioning menu consists of the channels described in the following. In order to make an adjustment, adjust the value by turning the Lightwheel

and con rm

by pressing the right button (✓). The next channel will appear in the display.

1. Language:

Î Adjust the desired menu language.

2. Units:

Î Adjust the desired temperature unit.

Î Adjust the desired volume unit.

CommissioningOperation and function

Messages

Operation

Adjustment mode

Changing a value

Con rming a value

Next parameter

Î Adjust the desired pressure unit.

Î Adjust the desired energy unit.

3. Daylight savings time adjustment:

Î Activate or deactivate the automatical daylight

savings time adjustment.

4. Time:

Î Adjust the clock time. First of all adjust the hours,

then the minutes.

5. Date:

Î Adjust the date. First of all adjust the year, then the

month and then the day.

6. Selection: System or Scheme

Î Choose whether the controller is to be con gured

with a scheme number or with a system and a variant.

7a. Scheme (if 6. = Scheme)

Î Enter the scheme number of the desired system.

8. Completing the commissioning menu:

After the system has been selected or the scheme number has been entered respectively, a security enquiry appears. If the security enquiry is con rmed, the adjustments are saved.

Î In order to con rm the security enquiry, press the

right button (✓).

Î In order to reenter the commissioning menu

channels, press the left button (⟲). If the secu-

rity enquiry has been con rmed, the controller is

ready for operation and normally the factory settings will give close to optimum operation.

Note:

The adjustments carried out during commissioning can be changed anytime in the corresponding adjustment channel. Additional functions and options can also be activated or deactivated.

Set the code to the customer code before handing over the controller to the customer (see page 60).

InstallationIndications, functions and optionsMessages Commissioning Operation and function

7b. Selection of the solar system (if 6. = System):

Î Adjust the desired solar system (number of collec-

tors and stores, hydraulic variants).

5.1 Basic systems and hydraulic variants

System

Installation Indications, functions and options

The controller is pre-programmed for 4 basic systems. The selection depends on the number of heat sources (collector  elds) and heat sinks (stores, pool). Factory setting is system 1.

CommissioningOperation and function

System 0: no solar system System 1: 1 collector  eld - 1 store System 2: East / west collectors - 1 store System 3: 1 collector  eld - 2 store System 4: East / west collectors - 2 store

The selection of the basic solar system is one of the most important adjustments and is thus requested already in the commissioning menu.

First, the basic system is adjusted by means of the number of stores and collectors

 elds, then the hydraulic variant.

The selected system is visualised by the corresponding number of store and collector symbols. The  gure to the left shows system 4 which consists of 2 stores and 2

collector  elds (“east- / west collectors”).

Variant

The hydraulic variant refers to the different actuators that are to be controlled. They are visualised on the display by means of symbols, when the variant is selected.

The upper symbol indicates the actuator belonging to the collector  elds, the lower

one the actuators belonging to the stores.

The exemplary  gure shows the display indicated when system 4, variant 1 has

been selected. In this case, each collector  eld has a pump, the stores are loaded by means of valve logic.

A solar system with store loading in layers is implemented as a 2-store system

(store top = store 1; store bottom = store 2).

Messages

For each variant, the controller allocates the corresponding relays and sensors. The allocations of the most important combinations are shown in chap. 5.2.

5.2 Overview of relay and sensor allocation

System 1

System 2 variant 1

InstallationIndications, functions and optionsMessages Commissioning Operation and function

Sensors

Collector 1 S1 Store base S2

R1; A

Relay; PWM / 0-10 V

Solar pump R1; A

Sensors

Collector 1 S1 Store base S2 Collector 2 S3

S1 S3

R1; A

R2; B

Relay; PWM / 0-10 V

Pump collector 1 R1; A Pump collector 2 R2; B

System 2 variant 2 System 3 variant 1

Installation Indications, functions and options

Sensors

Collector 1 S1 Store base S2 Collector 2 S3

CommissioningOperation and function

Messages

R3; A

S1 S3

Relay; PWM / 0-10 V

2-PV collector 1 R1 2-PV collector 2 R2 Solar pump R3; A

Sensors

Collector S1 Store 1 base S2 Store 2 base S4

R1; A

Relay; PWM / 0-10 V

Solar pump R1; A 3-PV store 2 R2

System 3 variant 2 System 3 variant 3

R1;

InstallationIndications, functions and optionsMessages Commissioning Operation and function

Sensors

Collector S1 Store 1 base S2 Store 2 base S4

R1; A R2; B

Relay; PWM / 0-10 V

Solar pump store 1 R1; A Solar pump store 2 R2; B

Sensors

Collector S1 Store 1 base S2 Store 2 base S4

R2 R3

Relay; PWM / 0-10 V

Solar pump R1; A 2-PV store 1 R2 2-PV store 2 R3

System 4 variant 1

R1;

S1 S3

Installation Indications, functions and options

Sensors

Collector 1 S1 Store 1 base S2 Collector 2 S3 Store 2 base S4

CommissioningOperation and function

Messages

R2; B

Relay; PWM / 0-10 V

Pump collector 1 R1; A Pump collector 2 R2; B 3-PV store 2 R3

S2 S4

6 Main menu

In this menu, the different menu areas can be selected. The following menus are available:

• Status

• Solar

• Arrangement

• Heating

• HQM

• Basic settings

• SD card

• Manual mode

• User code

• In- / Outputs Î Select the menu area by turning the Lightwheel Î Press the right button (✓) in order to enter the selected menu area.

If no button is pressed for 1 min, the display illumination goes out. After 3 more minutes, the controller switches to the Status menu.

Î In order to get from the Status menu into the Main menu, press the left button

(⟲)!

7 Status

In the Status menu of the controller, the status messages for every menu area can be found.

7.1 Meas. / Balance values

In the Status / Meas. / Balance values menu, all current measurement values as well as a range of balance values are displayed. Some of the menu items can be selected in order to enter a sub-menu.

Additionally, all optional functions selected, the operating hours counter as well as activated heat quantity measurements are displayed.

InstallationIndications, functions and optionsMessages Commissioning Operation and function

If, for example, Solar / System is selected, a sub-menu with the sensors and relays allocated to the solar system opens. In the sub-menu, the current temperatures and the current pump speed are displayed.

When a line with a measurement value is selected, another sub-menu will open.

Installation Indications, functions and options

7.4 Heating

If, for example, S1is selected, a sub-menu indicating the minimum and maximum values will open.

7.2 Solar

CommissioningOperation and function

In the Status / Solar menu, the status of the solar system, the solar loading and the selected optional functions are indicated.

7.3 Arrangement

In the Status / Arrangement menu, the status of the selected optional functions is indicated.

Messages

In the Status / Heating menu, the status of the demands activated as well as of the selected optional functions is indicated.

7.5 Messages

In the Status / Messages menu, error and warning messages which have not been acknowledged are indicated.

During normal operation, the message Everything OK is indicated. When a monitoring function from the function control is activated and detects a

fault condition, a corresponding message is indicated (see table).

A message consists of the name of the monitoring function, a 4-digit error code and

a short text description of the fault condition. In order to acknowledge the message, proceed as follows:

Î Select the code of the desired message by turning the Lightwheel

Î Con rm your selection with the right button (✓). Î Con rm the security enquiry by selecting Yes.

When the installer user code has been entered, the menu item Restarts will appear below the messages. The value indicates the number of controller restarts since commissioning. This value cannot be reset.

Messages

Error

Display Monitoring function Cause

code

0001 !Sensor fault! Sensor line break Sensor line broken

0002 !Sensor fault! Sensor short circuit Sensor line short-circuited

0011

!DT too high! DT too high

0021 !Night circulation! Night circulation

0031 !FL / RL interchanged! FL / RL interchanged

0041 !Flow r. monit.! Flow rate monitoring No ow rate at sensor

0051 !Overpressure! Overpressure monitoring

0052 !Low pressure! Low pressure monitoring

!Data memory

0061

defective!

0071 !RTC!

0081 !Store max. temp.! Maximum store temperature St. max has been exceeded

0091 Restarts

Storing and changing adjustments not possible

Time-controlled functions (e. g. night correction) not possible

Restart counter (non-adjustable)

Collector 50 K > than store

to be loaded

Betw. 11 p.m. and 5 a.m. col.

temp > 40 °C

Col. temp. does not rise after switching on

Max. system pressure exceeded

System pressure below minimum

Number of restarts since commissioning

Note:

The function control “ow and return interchanged” according to the VDI guidelines 2169 can only correctly detect and indicate the error “0031 !FL / RE INTERCHANGED!” if the collector sensor measures the temperature directly in the uid at the collector outlet. If the collector sensor is

not correctly placed, a false message may occur.

Î Place the collector sensor directly in the uid at the collector outlet

or deactivate the “ow and return interchanged” function control.

InstallationIndications, functions and optionsMessages Commissioning Operation and function

7.6 Ethernet

Note:

If the controller is not equipped with a LAN interface, the message No

Installation Indications, functions and options

Ethernet module will be indicated in this menu.

In the Status / Ethernet menu, information about the LAN interface and the net-

work con guration is indicated:

• DHCP

• IP address

• Network mask

CommissioningOperation and function

• Gateway

• MAC address

• Software version

• Software article no.

7.7 Service

8 Solar

In this menu, all adjustments for the solar part of the arrangement can be made. The Solar menu consists of the following sub-menus:

• Basic setting

• Optional functions

• Function control

• Holiday function

• Expert

8.1 Basic solar settings

In this menu, all basic settings for the solar part of the arrangement can be adjusted. In this menu, the hydraulic system, which is the basis for the arrangement, can be

adjusted. The setting is divided into systems and variants. Both system and variant have usually been adjusted during commissioning. If the

setting is changed later on, all adjustments for the solar part of the arrangement are set back to their factory settings.

If the change causes the solar system to require a relay that has been allocated to an arrangement or heating function before, all adjustments made in the non-solar function will be set back to their factory settings as well.

In the Status / Service menu, each sensor and relay is indicated with the component or function it has been allocated to. For free sensors and relays, Free is indicated.

Messages

First of all, the basic solar system can be selected according to the number of stores

and collector  elds in use. The corresponding numbers are indicated on the display. The exemplary  gure shows system 4 with its 2 stores and 2 collector  elds

(east- / west collectors).

When the basic system has been selected and con rmed, the hydraulic variant can

be selected. The variant is visualised on the display by means of pump and valve symbols. The exemplary  gure shows variant 1 of system 4 with a 3-port valve and a pump. For an overview of the basic systems and their variants see page 17.

The controller supports up to 2 collector  elds and up to 2 solar stores.

The following items in the Solar / Basic settings menu will adjust to the system selected.

Collector (1, 2) In systems with 2 collector  elds, 2 separate menu items (Collector 1 and Collec-

tor 2 ) are displayed instead of Collector.

For each collector  eld, a collector minimum limitation and a collector emergency

shutdown temperature can be adjusted.

Solar / Basic settings / Collector (1, 2)

Adjustment channel Colmin. Minimum collector limitation Yes, No Ye s

Colmin. Minimum collector temperature 10 … 90 °C 10 °C Colem. Collector emergency temperature 80 … 200 °C 130 °C

Description

Adjustment range / selection

Factory setting

Store (1, 2)

In systems with 2 or more stores, 2 separate menu items (Store 1 and Store 2) are displayed instead of Store). For each store, an individual

DT control, a set and a maximum temperature, the

priority (in multi-store systems), a hysteresis, a rise value, a minimum runtime and a minimum pump speed can be adjusted. In multi-store-systems with differing Store set / Maximum store temperatures, all stores are loaded up to their Set temperatures  rst, then up to their Maximum store temperatures (according to their priority and the store sequence control). If one of the stores does not reach its set temperature, e. g. because the temper-

ature difference is not suf ciently high, the subsequent store will be loaded past

its set temperature up to its maximum temperature, if the switch-on condition is

ful lled.

InstallationIndications, functions and optionsMessages Commissioning Operation and function

Solar / Basic settings / Store (1, 2)

100

Adjustment channel

DTo n

Installation Indications, functions and options

DToff

DTset

Description

Switch-on temperature difference 1.0 … 20.0 K 6.0 K

Switch-off temperature difference 0.5 … 19.5 K 4.0 K

Set temperature difference 1.5 … 30.0 K 10.0 K

Adjustment range / selection

Factory setting

Stset Store set temperature 4 … 95 °C 45 °C Stmax Maximum store temperature 4 … 95 °C 60 °C Priority Store priority 1 , 2 system dependent

HysSt Hysteresis maximum store temperature 0.1 … 10.0 K 2.0 K

Rise Rise value 1.0 … 20.0 K 2.0 K tMin Minimum runtime 0 … 300 s 30 s Min. speed Minimum speed (20) 30 … 100 %

30 %

Deactivated Blocked for solar loading Yes, No No

The store number refers to the corresponding store sensor, not to the priority of the store. In the Priority channel, the corresponding store number is suggested as factory setting, but may be changed at will.

CommissioningOperation and function

The store numbers refer to the sensors as follows: Store 1 = Sensor S2 Store 2 = Sensor S4 If the temperature reaches or exceeds the switch-on temperature difference,

the pump switches on at 100 % speed for 10 s. Then, the speed is reduced to the minimum pump speed value. If the temperature difference exceeds the adjusted nominal value by 1 / 10 of the Rise value, the pump speed increases by one step (1 %). The response of the controller can be adapted via the parameter Rise. Each time the difference increases by 1 / 10 of the adjustable rise value, the pump speed increases by one step until the maximum pump speed of 100 % is reached. If the temperature difference decreases by 1 / 10 of the adjustable rise value, pump speed will be decreased by one step.

Pump speed [%]

0 246810 12 14 16 18 20 22 24

Temperature difference

Detail

Pump speed [%]

10,0 10,2 10,4 10,6 10,8

Temperature difference collector - store [K]

11,2 11,4 11,6 11,8

Messages

Loading logic

8.2 Solar optional functions

Solar / Basic settings / Loading logic

Adjustment channel Load. break Loading break time 1 … 5 min 2 min

Circ. Circulation time 1 … 60 min 15 min Pause speed Loading break pump speed control option Yes, No No Speed Loading break pump speed (20) 30 … 100 % 30 % Pump del. Pump delay Yes, No No Delay Delay time 5 … 600 s 15 s

Description

Adjustment range / selection

Factory setting

In systems with 2 stores, loading logic adjustments can be made in this menu.

Store sequence control:

If the priority store cannot be loaded, the subordinate store will be checked. If useful heat can be added, it will be loaded for the circulation time. After this, the loading process stops and the controller monitors the increase in collector temperature during the loading break time Load. break. If it increases by 2 K, the break time timer starts again to allow the collector to gain more heat. If the collector temper-

ature does not increase suf ciently, the subordinate store will be loaded again for

the Circulation time.

As soon as the switch-on condition of the priority store is ful lled, it will be loaded. If the switch-on condition of the priority store is not ful lled, loading of the second

store will be continued. If the priority store reaches its maximum temperature, store sequence control will not be carried out.

Each loading process will be carried out for the duration of the Minimum runtime (tMin in the Solar / Basic settings / Store menu) at least, regardless of the switch-off condition.

Note:

In systems 1 and 2, only the menu item Pump delay will be available.

InstallationIndications, functions and optionsMessages Commissioning Operation and function

In this menu, optional functions can be selected and adjusted for the solar part of the arrangement.

By selecting Add new function, different pre-programmed functions can be selected. The kind and number of optional functions offered depends on the previous adjustments.

When a function is selected, a sub-menu opens in which all adjustments required can be made.

With this menu item, a relay and, if necessary, certain system components can be allocated to the function.

The menu item Relay is available in almost all optional functions. Therefore, it will not be explained in the individual function descriptions.

With this menu item, a relay can be allocated to the function. All free relays are available for selection.

If Free is selected, the function will run normally in the software but will not operate a relay.

Installation Indications, functions and options

When a function has been adjusted and saved, it will appear in the Opt. functions menu above the menu item Add new function.

This allows an easy overview of functions already saved. An overview about which sensor has been allocated to which component and which

relay has been allocated to which function is given in the Status / Service menu.

CommissioningOperation and function

At the end of each optional function sub-menu, the menu items Function and Save function are available. In order to save a function, select Save function and con rm the security enquiry by selecting Yes.

In functions already saved, the menu item Delete function appears instead.

In order to delete a function already saved, select Delete function and con rm the security enquiry by selecting Ye s .

Messages

With the menu item Function, an optional function already saved can be temporarily deactivated or re-activated respectively. In this case, all adjustments will remain stored, the allocated relays remain occupied and cannot be allocated to another function.

By selecting Switch, the function can be activated or deactivated respectively by means of an external switch.

The selection is only available if a sensor input has previously been set to Switch in the Inputs / Outputs menu.

If Switch is selected, the channel Sensor will appear. In this channel, the sensor input to which the switch is to be connected can be allocated to the function.

If the menu item Delete function is con rmed by pressing the right button (✓), a security enquiry appears. The setting can be changed between Ye s and No by turning the Lightwheel®. If Yes has been selected and con rmed by pressing the right button (✓), the function is deleted and available under Add new function again. The corresponding relays are available again.

Bypass

The Bypass function can be used to avoid an energy loss from the store directly after loading has started. The still cold heat transfer medium in the pipework is diverted through a bypass past the store. Once the pipe is warm enough, the store can be loaded.

Variant pump:

Relay

Exemplary schematics for the bypass variants

Bypass sensor

Variant valve:

Bypass sensor

Relay

Variant valve (inverted):

Bypass sensor

Relay

Solar / Opt. functions / Add new function / Bypass

Adjustment channel Collector Collector  eld system dependent system dependent

Relay Bypass relay system dependent system dependent Variant Variant (pump or valve logic) Inverted Valve logic inversion Yes, No No Sensor Bypass sensor system dependent system dependent

DTo n

DToff

Funct. Activation / Deactivation Activated, Deactivated, Switch Activated Sensor Sensor input allocation - Save / Delete

function

Description Adjustment range / selection Factory setting

Pump, Valve Pump

Bypass switch-on temperature difference

Bypass switch-off temperature difference

Save / Delete function - -

1.0 … 20.0 K 6.0 K

0.5 … 19.5 K 4.0 K

InstallationIndications, functions and optionsMessages Commissioning Operation and function

Depending on whether the bypass is energised by a valve or by a second pump, a corresponding adjustment can be made in the menu item Variant. Depending on the variant, different control logics are applied:

Pump:

In this version, a bypass pump is placed in front of the collector pump. The bypass pump is  rst activated when store loading is possible. If the temperature

difference between the Bypass sensor and the store sensor reaches the Bypass switch-on temperature difference, the bypass pump is switched off and the solar pump is switched on instead.

Valve: A bypass valve is placed into the solar circuit. The solar heat exchanger is  rst bypassed when store loading is possible. If the

temperature difference between the Bypass sensor and the store sensor reaches the Bypass switch-on temperature difference, the bypass relay operates the valve and solar loading starts.

When the valve variant is selected, the option Inverted is additionally available. When the Inverted option is activated and the bypass circuit becomes activated, the relay switches on. If the temperature difference between the Bypass sensor and the store sensor reaches the Bypass switch-on temperature difference, the relay switches off.

External heat exchanger

Installation Indications, functions and options

Solar / Opt. functions / Add new function / Ext. HX

Adjustment channel Relay Relay selection system dependent system dependent

Min. speed Minimum speed (20) 30 … 100 % 30 % Store Store sensor selection system dependent all stores Sen. Ext. HX Reference sensor ext. HX system dependent system dependent Target tem-

perature

CommissioningOperation and function

Sensor Target temperature reference sensor system dependent system dependent Target temp. Target temperature 15 … 95 °C 60 °C

DTo n

DToff

Overrun Overrun time 0 … 15 min 2 min Save / Delete

function

Description

Target temperature option Yes, No No

Switch-on temperature difference 1.0 … 20.0 K 10.0 K

Switch-off temperature difference 0.5 … 19.5 K 5.0 K

Save / Delete function - -

Adjustment range / selection

Factory setting

This function is used to link loading circuits that are separated by an external heat exchanger.

The allocated relay is energised if one of the selected stores is being loaded and there is a temperature difference between the sensor of the corresponding store

and the solar  ow.

The relay is switched off if this temperature difference falls below the adjusted switch-off difference.

In contrast to the bypass function, a differential control between Sen. Ext. HX and

the store temperature can be carried out by means of the heat exchanger relay. The reference sensor can be arbitrarily allocated.

In System 3, variant 2, the heat exchanger relay operates the primary circuit pump. The heat exchanger is protected by a non-adjustable antifreeze function.

Note: Because of the special hydraulics in systems with 2 collectors, the Target

temperature function will not work properly there.

Note:

The heat exchanger is protected by a non-adjustable antifreeze function. Using a bypass is recommended nevertheless.

Messages

Tube collector function

Target temperature

Solar / Opt. functions / Add new function / Tube collector

Adjustment channel Start Start time frame 00:00 … 23:00 08:00 Stop Stop time frame 00:30 … 23:30 19:00 Run Pump runtime 5 … 600 s 30 s Pause Standstill interval 1 … 60 min 30 min Delay Pump delay 5 … 600 s 15 s Collector Collector  eld system dependent system dependent Stmax off Maximum store temperature off Yes, No Ye s

Funct. Activation / Deactivation

Sensor Sensor input allocation - Save / Delete function

Description

Save / Delete function - -

Adjustment range / selection

Activated, Deactivated, Switch

Factory setting

Activated

This function is used for improving the switch-on behaviour in systems with non-ideal sensor positions (e. g. with some tube collectors). This function operates within an adjusted time frame. It activates the collector circuit pump for an adjustable Runtime between adjustable pauses in order to compensate for the delayed temperature measurement.

If the runtime is set to more than 10 s, the pump will be run at 100 % for the  rst

10 s of the runtime. For the remaining runtime, the pump will be run at the adjusted minimum speed. If the collector sensor is defective or the collector is blocked, this function is suppressed or switched off. If the Maximum store temperature off option is activated and the temperature of the store to be loaded exceeds the maximum store temperature, the tube collector function will be suppressed.

2-collector systems

In 2-collector systems, the tube collector function is available for each individual

collector  eld.

The tube collector function will remain inactive for a collector  eld which is used for solar loading.

Solar / Opt. functions / Add new function / Target temperature

Adjustment channel Target temp. Target temperature 20 … 110 °C 65 °C

Sensor Reference sensor system dependent system dependent Rise Rise value 1.0 … 20.0 K 2.0 K Funct. Activation / Deactivation Activated, Deactivated, Switch Activated Sensor Sensor input allocation Save / Delete

function

Description Adjustment range / selection Factor y setting

- -

Save / Delete function

- -

When the Target temperature function is activated, the pump speed control logic changes. The controller will remain at the minimum pump speed until the temperature at the allocated sensor exceeds the adjusted target temperature. Only then will the standard pump speed control start to operate. If the temperature at the allocated sensor changes by 1 / 10 of the adjusted Rise value, the pump speed will be adjusted correspondingly.

If the Ext. HX (see p. 30) function has been activated, too, the target temperature control will pause while the external heat exchanger is loaded. While the external heat exchanger is loaded, its own pump speed control will come into effect.

InstallationIndications, functions and optionsMessages Commissioning Operation and function

Antifreeze

Installation Indications, functions and options

Afterheating suppression

Solar / Opt. functions / Add new function / Antifreeze

Adjustment channel Frost on Antifreeze switch-on temperature -40 … +15 °C +4 °C

Frost off Antifreeze switch-off temperature -39 … +16 °C +6 °C Collector Collector  eld system dependent system dependent Store (1 , 2) Store succession order system dependent system dependent

Funct. Activation / Deactivation

CommissioningOperation and function

Sensor Sensor input allocation Save / Delete

function

Description

Save / Delete function

Adjustment range / selection

Activated, Deactivated, Switch

Factory setting

Activated

The Antifreeze function activates the loading circuit between the collector and the store when the temperature falls below the adjusted Antifreeze switch-on

temperature. This will protect the  uid against freezing or coagulating. If the An- tifreeze switch-off temperature is exceeded, the solar pump will be switched

off again.

Heat will be extracted from the stores according to the adjusted order. When all stores have reached their minimum temperature of 5 °C, the function becomes

inactive. If the function is activated, the pump is run at its maximum relative speed.

Note: In systems with east- / west collectors, 2 separate menus will be displayed.

Messages

Solar / Opt. functions / Add new function / AH suppression

Adjustment channel Relay Reference relay system dependent system dependent

Store Store sensor selection system dependent system dependent Tset Set temperature Yes, No No Funct. Activation / Deactivation Activated, Deactivated, Switch Activated Sensor Sensor input allocation Save / Delete

function

Description Adjustment range / selection Factory setting

Save / Delete function

The Afterheating suppression blocks the conventional afterheating of a store that is currently in solar loading.

This function is activated if a previously selected Store is being loaded. Solar loading means that store loading is only carried out for energy supply and not

for cooling purposes etc. If the Tset option is activated, the afterheating will only be suppressed when the

store temperature exceeds Tset.

Parallel relay

Cooling mode

Solar / Opt. functions / Add new function / Parallel relay

Adjustment channel Relay Parallel relay system dependent system dependent

Store Store sensor selection system dependent system dependent Funct. Activation / Deactivation Activated, Deactivated, Switch Activated Sensor Sensor input allocation Save / Delete

function

Description Adjustment range / selection Factory setting

Save / Delete function

With this function, e. g. a valve can be controlled in parallel to a solar pump via a separate relay.

Switch-on condition for the solar parallel relay function is that one or more of the selected stores is being loaded. If at least one of the selected stores is being loaded, the parallel relay is energised.

The parallel relay function operates regardless whether the store is subjected to regular solar loading or to a loading caused by an optional function (such as the collector cooling).

Note: If a relay is in the manual mode, the selected parallel relay will not be

energised.

Solar / Opt. functions / Add new function / Cooling mode

Adjustment channel Variant Cooling logic variant Col. cool, Syst. cool., Off Off

Tcolmax. Collector maximum temperature 70 … 190 °C 100 °C Store (1, 2) Store succession order system dependent system dependent St cooling Store cooling Yes, No No

DTo n

DToff

Funct. Activation / Deactivation

Sensor Sensor input allocation - Save / Delete

function

Description

Switch-on temperature difference 1.0 … 30.0 K 20.0 K

Switch-off temperature difference 0.5 … 29.5 K 15.0 K

Save / Delete function - -

Adjustment range / selection

Activated, Deactivated, Switch

Factory setting

Activated

In the Cooling mode menu, different cooling functions are available. They can be used for keeping the solar system operational for a longer time during strong solar irradiation.

For this purpose, the adjusted maximum store temperatures can be exceeded. The store order for this overloading can be adjusted. Additionally, each individual store can be excluded from this function.

2 different variants are available for the cooling mode: the system cooling and the collector cooling.

System cooling:

If the system cooling variant has been selected and the switch-on temperature difference is exceeded, store loading is continued even if the corresponding maximum temperature is exceeded, but only up to the emergency shutdown temperature. Store loading continues until all stores have reached the emergency shutdown temperature or until the switch-off temperature difference is reached.

InstallationIndications, functions and optionsMessages Commissioning Operation and function

Collector cooling:

If the collector cooling variant has been selected, store loading is continued or reactivated when the collector maximum temperature is exceeded.

Store loading continues until all stores have reached the emergency shutdown tem-

Installation Indications, functions and options

perature or until the collector temperature falls below the collector maximum

temperature by at least 5 K. In 2-collector systems, separate adjustments can be made for each collector  eld.

The control logic regards collector cooling operation as solar loading. The adjusted values for delay, minimum runtime, etc. remain valid.

Store cooling option:

When the store cooling function is activated, the controller aims to cool down the store during the night in order to prepare it for solar loading on the following day.

When the store cooling function is activated, the solar pump is switched on if the maximum store temperature is exceeded and the collector temperature falls below the store temperature. The solar pump remains active until the store temperature falls below the adjusted maximum store temperature.

CommissioningOperation and function

The store order for the cooling is the same as in the overheating through systemor collector cooling.

Drainback option

Solar / Opt. functions / Add new function / Drainback

Adjustment channel Filling time Drainback  lling time 1 … 30 min 5 min

Stab. time Stabilisation time 1.0 … 15.0 min 2.0 min Initialis. Initialisation time 1 … 100 s 60 s Booster Booster option Yes, No No Relay Booster pump relay selection system dependent system dependent Drain impulse Drain impulse option Yes, No No Delay Delay time 1 … 30 min 3 min

Duration

Funct. Activation / Deactivation Activated, Deactivated, Switch Activated Sensor Sensor input allocation Save / Delete

function

Description Adjustment range / selection Factory setting

Drain impulse loading duration

Save / Delete function

1 … 60 s 10 s

Messages

R1 R2

Booster pump

S4 / TR

Exemplary drainback system layout (R2 = booster pump)

In a drainback system the heat transfer  uid will  ow into a holding tank if solar

loading does not take place. The drainback option initiates the  lling process if solar loading is about to start. If the drainback option is activated, the following adjustment can be made:

Note: A drainback system requires additional components such as a holding

tank. The drainback option should only be activated if all components required are properly installed.

Time period - switch-on condition The parameter Initialis. is used for adjusting the time period during which the

switch-on condition must be permanently ful lled.

Filling time

The  lling time can be adjusted using the parameter Filling time. During this period, the pump runs at maximum speed.

Stabilisation The parameter Stab. time is used for adjusting the time period during which the

switch-off condition will be ignored after the  lling time has ended.

The Booster option is used for switching on a second pump when  lling the solar system. The corresponding relay is switched on at 100 % speed for the duration of

the  lling time.

A short time (Delay time) after the system has been emptied, the Drain impulse option will switch on the solar pump for an adjustable Duration. Thus, a

hydrostatic head will form in the  ow pipe. When it falls back into the holding tank,

water pockets remaining in the collector will be sucked down into the holding tank.

Twin pump

Solar / Opt. functions / Add new function / Twin pump

Adjustment channel Relay Relay selection system dependent system dependent

Reference relay Reference relay selection system dependent Runtime Pump runtime 1 … 48 h 6 h Flow rate mon. Flow rate monitoring option Yes, No No Flow rate sen. Flow rate sensor selection S5, S6, S7 Delay Delay time 1 … 10 min 5 min

Funct. Activation / Deactivation

Sensor Sensor input allocation - Save / Delete

function

Description

Save / Delete function - -

Adjustment range / selection

Activated, Deactivated, Switch

Factory setting

Activated

InstallationIndications, functions and optionsMessages Commissioning Operation and function

Relay

Reference relay

Exemplary  gure of twin pumps with upstream  owmeter

The Twin pump function controls the equal distribution of pump runtime in sys- tems with 2 equally usable pumps.

If the allocated relay has exceeded its adjusted runtime and the next switch-on

Installation Indications, functions and options

process is imminent, the reference relay is switched on instead. All characteristics are adopted.

If the reference relay has in turn exceeded its runtime as well, the  rst relay is

switched on again in the next switch-on process. Additionally, the Flow rate monitoring option can be activated in order to acti-

vate the twin pump in the case of a  ow rate error. When the  ow rate monitoring option is activated, 2 additional adjustment channels appear for allocating a sensor and adjusting a delay time.

If the  ow rate monitoring option is activated, an error message will appear when no  ow rate is detected at the allocated sensor after the Delay time has elapsed.

The active relay will be blocked as defective and the second relay will be activated instead. The twin pump function will pause until the error message has been acknowledged.

CommissioningOperation and function

When the error message is acknowledged, the controller runs a test during which it will energise the relay and again monitor the  ow rate.

Heat dump

Solar / Opt. functions / Add new function / Heat dump

Adjustment channel Relay Relay selection system dependent system dependent

Variant Variant (pump or valve logic) Valve, Pump Valve

DTvalve Collector Collector selection system dependent 1 Tcol. Collector overtemperature 40 … 190 °C 110 °C

Funct. Activation / Deactivation

Sensor Sensor input allocation - Save / Delete

function

Description

Valve logic temperature difference 0.0 … 10.0 K 3.0 K

Save / Delete function - -

Adjustment range / selection

Activated, Deactivated, Switch

Factory setting

Activated

Relay

Messages

Relay

Variant pump Variant valve

Note:

The switch-on collector temperature must be adjusted at least by 10 K lower than the emergency switch-off temperature.

The Heat dump function can be used to direct excess heat generated by strong solar irradiation to an external heat exchanger (e. g. fan coil) in order to keep the collector temperature within the operating range.

Whether the heat dump is activated via an additional pump or a valve can be adjusted in the menu item Variant.

Variant pump:

The allocated relay is energised with 100 %, if the collector temperature reaches the adjusted switch-on temperature.

If the collector temperature falls by 5 K below the adjusted collector overtemper-

ature, the relay will be switched off. In the variant pump, the heat dump function works independent from solar loading.

Variant valve:

If the collector temperature reaches the [Tcol. - DT valve], the allocated relay switches on. This ensures that the valve has completed its motion before the pump is activated. If the collector temperature falls by 5 K below the adjusted collector overtemperature, the relay will be switched off.

If one of the store temperatures exceeds its store maximum temperature while the heat dump function is active, the function will be deactivated and an error message will appear. If the temperature falls below this value by the hysteresis maximum store temperature (HysSt in the Solar / Basic settings / Store menu), the heat dump function is released again.

Flow rate monitoring

Solar / Opt. functions / Add new function / Flow rate mon.

Adjustment channel Sensor Flow rate sensor selection system dependent -

Reference relay Reference relay selection system dependent Store Store sensor selection system dependent 1 Time Delay time 1 … 300 s 30 s Funct. Activation / Deactivation Activated, Deactivated, Switch Activated Sensor Sensor input allocation - Save / Delete

function

Description Adjustment range / selection Factory setting

Save / Delete function - -

The Flow rate monitoring function can be used for detecting malfunctions that impede the  ow rate and to switch off the corresponding relay. This will prevent system damage, e. g. through a dry run of the pump.

If the  ow rate monitoring function is activated, an error message will appear when no  ow rate is detected at the allocated  owmeter after the delay time has elapsed.

• If a Reference relay has been selected, the  ow rate monitoring function will

become active when the allocated relay is switched on. In the case of an error, the complete solar system will be shut down.

• If both a Store and a Reference relay have been selected, the  ow rate moni-

toring function will become active when the allocated relay is switched on. In the case of an error, the allocated store will be blocked until the error message has been acknowledged. The next store free for loading will be loaded instead.

The error message will appear both in the Status / Messages menu and in the

Status / Solar / Flow rate mon. menu.It can be acknowledged in the Status / Solar / Flow rate mon. menu. When the error message is acknowledged, the con-

troller runs a test during which it will energise the relay and again monitor the  ow rate.

InstallationIndications, functions and optionsMessages Commissioning Operation and function

Pressure monitoring

Installation Indications, functions and options

Note:

The pressure monitoring function will only be available when an RPS type Grundfos Direct Sensor™ is connected.

Solar / Opt. functions / Add new function / Pressure monitoring

Adjustment channel Sensor Pressure sensor selection S6 -

Low pressure Low pressure monitoring option Yes, No No

CommissioningOperation and function

On Switch-on threshold 0.0 … 9.7 bar 0.7 bar Off Switch-off threshold 0.1 … 9.8 bar 1.0 bar Shutdown Shutdown option Yes, No No Overpressure Overpressure monitoring option Yes, No No On Switch-on threshold 0.3 … 10.0 bar 5.5 bar Off Switch-off threshold 0.2 … 9.9 bar 5.0 bar Shutdown Shutdown option Yes, No No

Funct. Activation / Deactivation

Sensor Sensor input allocation Save / Delete

function

Description

Save / Delete function

Adjustment range / selection

Activated, Deactivated, Switch

Factory setting

Activated

The Pressure monitoring function can be used for detecting overpressure or low pressure conditions inside the system, and if necessary to shut down the affected system components in order to avoid system damage.

Low pressure

If the system pressure falls below the adjustable switch-on value On, an error message will appear.

If the Shutdown option has been activated for the low pressure monitoring function, the solar system will be shut down as well in the case of a fault condition.

When the pressure reaches or exceeds the adjustable switch-off value Off, the system is switched on again.

Note: For the Low pressure monitoring function, Off always is at least 0.1 bar higher than On. The corresponding adjustment ranges will automatically adapt to that.

Overpressure

If the system pressure exceeds the adjustable switch-on value On, an error message will appear.

If the Shutdown option has been activated for the overpressure monitoring function, the solar system will be shut down as well in the case of a fault condition.

When the pressure reaches or falls below the adjustable switch-off value Off, the system is switched on again.

Note:

For the Overpressure monitoring function, On always is at least 0.1 bar higher than Off. The corresponding adjustment ranges will automatically adapt to that.

Messages

Function control

Note: Only if the installer code is entered (see page 60), will the Function control menu be available.

Solar / Function control

Adjustment channel Description

DT too high Option DT monitoring Night circulation Night circulation monitoring option Yes, No

FL / RL interchanged FL / RE interchange monitoring option Yes, No

Store max. temp.

Store Store sensor selection system dependent

Maximum store temperature monitoring option

Adjustment range / selection

Yes, No

Factory setting

system dependent

DT monitoring function

This function can be used for monitoring the temperature difference. The message DT too high is shown, if solar loading has been carried out for a period of 20 minutes with a differential higher than 50 K. Normal operation is not aborted or inhibited, but the system should be checked for the cause of the warning.

Possible causes are:

• pump power too weak

• hydraulic blockage of a system component

• circulation problems in the collector

• air inside the system

• defective valve / defective pump

Night circulation This function can be used for detecting thermal circulation inside the solar circuit

that leads to an unwanted cooling of the store. A warning message will appear when one of the following conditions has been detected for at least 1 min during the period between 11 p.m. and 5 a.m.:

• collector temperature exceeds 40 °C

• the temperature difference exceeds DTo n

The delay time of 1 min ensures that the message is not triggered by short-term fault conditions.

Possible causes are:

• defective non-return valves

• defective valve

• wrongly adjusted time

Flow and return pipe interchanged

This function is used for detecting an interchange of the  ow and return pipe or a

badly placed collector sensor. For this purpose, the collector temperature is monitored for plausibility during the switch-on phases of the solar pump. The message FL / RE interchanged will appear, when the plausibility criteria have not been met 5 times in a row.

Maximum store temperature

This function is used for detecting and indicating if the adjusted maximum store temperature has been exceeded. The controller compares the current store temperature to the adjusted maximum store temperature, thus monitoring the store loading circuits.

The maximum store temperature is considered exceeded when the temperature measured at the store sensor exceeds the adjusted maximum store temperature by at least 5 K. The monitoring becomes active again as soon as the store temperature falls below the adjusted maximum store temperature.

In the Store channel, the store or stores to be monitored can be selected. A possible cause for an unwanted exceedance of the maximum store temperature

is a defective valve.

InstallationIndications, functions and optionsMessages Commissioning Operation and function

8.3 Holiday function

Installation Indications, functions and options

Solar / Holiday function

Adjustment channel

Cooling Cooling logic variant

Tcolmax. Collector maximum temperature 70 … 190 °C 100 °C Store (1, 2) Store succession order system dependent Store cooling Store cooling option Yes, No Ye s

DTo n

CommissioningOperation and function

DToff Stmax (1, 2) Store cooling temperature 4 … 95 °C 40 °C Heat dump Store heat dump Yes, No No Relay Relay selection system dependent Sensor Sensor selection system dependent TStoreOn Switch-on temperature 5 … 95 °C 65 °C TStoreOff Switch-off temperature 4 … 94 °C 45 °C

Description

Switch-on temperature difference 1.0 … 30.0 K 20.0 K

Switch-off temperature difference 0.5 … 29.5 K 15.0 K

Adjustment range / selection

Deactivated, System cooling, Collector cooling

Factory setting

Deactivated

system dependent

The Holiday function is used for operating the system when no water consump- tion is expected, e. g. during a holiday absence. This function cools down the system in order to reduce the thermal load.

Only if the holiday function has been activated with the parameter Days of absence will the adjustments described in the following become active, see below.

4 different cooling functions are available: System cooling, Collector cooling, Store

cooling and Store heat dump.

System cooling:

If the system cooling variant has been selected and the switch-on temperature difference is exceeded, store loading is continued even if the corresponding maximum

Messages

temperature is exceeded, but only up to the emergency shutdown temperature. Store loading continues until all stores have reached the emergency shutdown temperature or until the switch-off temperature difference is reached.

Collector cooling:

If the collector cooling variant has been selected, store loading is continued or reactivated when the collector maximum temperature is exceeded.

Store loading continues until all stores have reached the emergency shutdown temperature or until the collector temperature falls below the collector maximum

temperature by at least 5 K. In 2-collector systems, separate adjustments can be made for each collector  eld.

The control logic regards collector cooling operation as solar loading. The adjusted values for delay, minimum runtime, etc. remain valid.

Store cooling:

When the store cooling function is activated, the controller aims to cool down the store during the night in order to prepare it for solar loading on the following day.

The store order for the cooling is the same as in the overheating through systemor collector cooling.

The store heat dump function can be used to direct excess heat generated by strong solar irradiation from the store to an external heat exchanger (e. g. fan coil) or radiator in order to prevent the collectors from overheating. The store heat dump function is independent of the solar system and can be activated with the parameter Heat dump. The function uses the adjustable switch-on and switch-off temperature differences TStoreOn and TStoreOff.

If the temperature measured at the sensor selected reaches the switch-on temperature, the relay selected will be energised until the temperature difference falls below the switch-off value. The parameter Days of absence can be used for entering the number of days for a holiday absence.

If the parameter is set to a value higher than 0, the function becomes active using the adjustments that have previously been made in the Holiday menu. The days will be counted backwards at 00:00. If the value is set to 0, the function is deactivated.

Note:

The parameter Days of absence can be accessed via the microbutton ⛁ only (see page 8).

Note:

The adjustments described in this chapter are independent of those in the Cooling mode menu, which are inactive during days of absence.

8.4 Solar expert menu

Solar / Expert

Adjustment channel Flow sensor Flow sensor option Yes, No No

Sensor Flow sensor selection system dependent Return sensor Return sensor option Yes, No No Sensor Return sensor selection system dependent -

Description

Adjustment range / selection

Factory setting

The Expert menu is only available when the installer user code has been entered. In the expert menu, a  ow and a return sensor can be selected and allocated. The activated sensors are then used to detect the switch-off condition.

Flow sensor

9 Arrangement

In this menu, all adjustments for the non-solar part of the arrangement can be made. A range of optional functions can be selected and adjusted.

9.1 Optional functions

In this menu, optional functions can be selected and adjusted for the arrangement. By selecting Add new function, different pre-programmed functions can be se-

lected. The optional functions are available as long as free relays are available.

InstallationIndications, functions and optionsMessages Commissioning Operation and function

Example of  ow and return sensor positions

Return sensor

Note: Because of the special hydraulics in systems with 2 collectors, this function will not work properly there.

When a function is selected, a sub-menu opens in which all adjustments required can be made.

With this sub-menu, a relay and, if necessary, certain system components can be allocated to the function.

Installation Indications, functions and options

The menu item Relay is available in almost all optional functions. Therefore, it will not be explained in the individual function descriptions.

With this menu item, a relay can be allocated to the function. All free relays are available for selection.

If Free is selected, the function will run normally in the software but will not operate a relay.

CommissioningOperation and function

When a function has been adjusted and saved, it will appear in the Opt. functions menu above the menu item Add new function.

This allows an easy overview of functions already activated. An overview about which sensor has been allocated to which component and which

relay has been allocated to which function is given in the Status / Service menu.

In order to delete a function already saved, select Delete function and con rm the security enquiry by selecting Ye s .

By selecting Switch, the function can be activated or deactivated respectively by means of an external switch.

If Switch is selected, the channel Sensor will appear. In this channel, the sensor input to which the switch is to be connected can be allocated to the function.

At the end of each optional function sub-menu, the menu items Function and Save function are available.

Messages

In order to save a function, select Save function and con rm the security enquiry by selecting Ye s. In functions already saved, the menu item Delete function appears instead.

Parallel relay

Mixer

Note: If a relay is in the manual mode, the selected parallel relay will not be energised.

Arrangement / Opt. functions / Add new function / Parallel relay

Adjustment channel Relay Relay selection system dependent system dependent

Reference relay Overrun Overrun option Yes, No No Duration Overrun time 1 … 30 min 1 min Delay Delay option Yes, No No Duration Delay time 1 … 30 min 1 min Speed Speed option Yes, No No Inverted Inverted switching option Yes, No No Funct. Activation / Deactivation Activated, Deactivated, Switch Activated Sensor Sensor input allocation Save / Delete

function

Description Adjustment range / selection Factory setting

Reference relay selection system dependent -

Save / Delete function

The Parallel relay function can be used to operate an allocated parallel relay alongside a selected reference relay. With this function, e. g. a valve can be controlled in parallel to the pump via a separate relay. If the Overrun option is activated, the parallel relay remains switched on for the adjusted Overrun time after the reference relay has been switched off. If the Delay option is activated, the parallel relay will be energised after the adjusted Delay time has elapsed. If the reference relay is switched off again during the delay time, the parallel relay will not be switched on at all. When the Speed option has been activated, the Relay will assume the pump speed information for the Reference relay. If the Inverted option is activated at the same time, the relay will only switch on / off without pump speed control. If the Inverted option is activated, the parallel relay switches on when the reference relay switches off and vice versa.

Arrangement / Opt. functions / Add new function / Mixer

Adjustment channel Relay closed Relay selection mixer closed system dependent system dependent

Relay open Relay selection mixer open system dependent system dependent Sensor Sensor selection system dependent system dependent TMixer Mixer target temperature 0 … 130 °C 60 °C Interval Mixer interval 1 … 20 s 4 s Funct. Activation / Deactivation Activated, Deactivated, Switch Activated Sensor Sensor input allocation Save / Delete

function

Description Adjustment range / selection Factory setting

Save / Delete function

The Mixer function can be used to adjust the actual  ow temperature to the desired Mixer target temperature. The mixer is opened or closed in pulses depending on this deviation. The pulses are determined by the adjustable Interval. The pause is determined by the difference between the actual value and the set value.

InstallationIndications, functions and optionsMessages Commissioning Operation and function

Zone loading

Installation Indications, functions and options

Error relay

Arrangement / Opt. functions / Add new function / Zone loading

Adjustment channel Relay Relay selection system dependent system dependent

Sensor top Top sensor selection system dependent system dependent Sensor base Base sensor selection system dependent system dependent To n Switch-on temperature 0 … 94 °C 45 °C Toff Switch-off temperature 1 … 95 °C 60 °C Timer Timer option Yes, No No

CommissioningOperation and function

Funct. Activation / Deactivation Activated, Deactivated, Switch Activated Sensor Sensor input allocation Save / Delete

function

Description Adjustment range / selection Factory setting

Save / Delete function

The Zone loading function can be used for loading a store zone between 2 sen- sors. For monitoring the switch-on and switch-off conditions, 2 sensors are used. The switch-on and switch-off temperatures Ton and Toff are used as reference parameters.

If the measured temperatures at both allocated sensors fall below the adjusted switching threshold Ton, the relay is energised. It is switched off again when the temperature at both sensors has exceeded Toff.

If one of the 2 sensors is defective, zone loading is suppressed or switched off.

Note: For more information about timer adjustment, see page 10.

Messages

Arrangement / Opt. functions / Add new function / Error relay

Adjustment channel Relay Relay selection system dependent system dependent

Funct. Activation / Deactivation Activated, Deactivated, Switch Activated Sensor Sensor input allocation Save / Delete

function

Description Adjustment range / selection Factory setting

Save / Delete function

The Error relay function can be used for operating a relay in the case of an error. Thus, e. g. a signalling device can be connected in order to signal errors.

If the error relay function is activated, the allocated relay will operate when a sensor fault occurs. If the  ow rate monitoring function is additionally activated, the allocat-

ed relay will additionally operate in the case of a  ow rate error.

Heat exchange

Sen. Source

Arrangement / Opt. functions / Add new function / Heat exchange

Adjustment channel Relay Relay selection system dependent system dependent

Sen. Source Heat source sensor selection system dependent system dependent Sen. Sink Heat sink sensor selection system dependent system dependent

DTo n

DToff

DTset

Min. speed Minimum speed (20) 30 … 100 % 100 %

Tmax

Tmin

Timer Timer option Yes, No No

Funct. Activation / Deactivation

Sensor Sensor input allocation - Save / Delete

function

Description

Switch-on temperature difference 1.0 … 30.0 K 6.0 K

Switch-off temperature difference 0.5 … 29.5 K 4.0 K

Set temperature difference 1.5 … 40.0 K 10.0 K

Maximum temperature of the store to be loaded

Minimum temperature of the store to be loaded

Save / Delete function - -

Adjustment range / selection

10 … 95 °C 60 °C

10 … 95 °C 10 °C

Activated, Deactivated, Switch

Factory setting

Activated

Relay

Sen. Sink

The Heat exchange function can be used for transferring heat from a heat source to a heat sink.

The allocated relay is energised when all switch-on conditions are ful lled:

• the temperature difference between the allocated sensors has exceeded the switch-on temperature difference

• the temperature at the heat source sensor has exceeded the minimum temperature

• the temperature at the heat sink sensor has fallen below the maximum temperature

When the Set temperature difference is exceeded, pump speed control starts.

For every deviation of 0.2 K, the pump speed will be adjusted by 1 %.

When the Timer option is activated, a timer is indicated in which time frames for the function can be adjusted.

Note: For more information about timer adjustment, see page 10.

InstallationIndications, functions and optionsMessages Commissioning Operation and function

Solid fuel boiler

Installation Indications, functions and options

Circulation

Arrangement / Opt. functions / Add new function / Solid fuel boiler

Adjustment channel Relay Relay selection system dependent

Sen. Boiler Sen. Store Store sensor selection system dependent

DTo n DToff DTset

Min. speed Minimum speed (20) 30 … 100 % 100 %

CommissioningOperation and function

Tmax St. Maximum temperature 10 … 95 °C 60 °C Tmin boiler Minimum temperature 10 … 95 °C 60 °C Funct. Activation / Deactivation Sensor Sensor input allocation - Save / Delete

function

Description

Solid fuel boiler sensor selection

Switch-on temperature difference Switch-off temperature difference Set temperature difference 3.0 … 40.0 K 10.0 K

Save / Delete function - -

Store sensor

Adjustment range / selection

system dependent

2.0 … 30.0 K 6.0 K

1.0 … 29.0 K 4.0 K

Activated, Deactivated, Switch

Boiler sensor

Relay

Factory setting

system dependent system dependent system dependent

Activated

The Solid fuel boiler function can be used for transferring heat from a solid fuel boiler to a store.

The allocated relay is energised when all switch-on conditions are ful lled:

• the temperature difference between the allocated sensors has exceeded the switch-on temperature difference

• the temperature at the solid fuel boiler sensor has exceeded the minimum

Messages

temperature

• the temperature at the store sensor has fallen below the maximum temperature

When the Set temperature difference is exceeded, pump speed control starts.

For every deviation of 0.2 K, the pump speed will be adjusted by 1 %.

Arrangement / Opt. functions / Add new function / Circulation

Adjustment channel Relay Relay selection system dependent system dependent

Type Variant

Sensor Circulation sensor selection system dependent system dependent To n Switch-on temperature 10 … 59 °C 40 °C Toff Switch-off temperature 11 … 60 °C 45 °C Timer Timer option Yes, No No Sensor FS08 sensor input selection system dependent system dependent Delay Demand switch-on delay 0 … 3 s 0 s Runtime Circulation pump runtime 01:00 … 15:00 min 03:00 min Break time Circulation pump break time 10 … 60 min 30 min Funct. Activation / Deactivation Activated, Deactivated, Switch Activated Sensor Sensor input allocation - Save / Delete

function

Description Adjustment range / selection Factory setting

Demand, Thermal, Timer,

Therm.+Timer, Demand+-

Timer

Save / Delete function - -

Thermal

The Circulation function can be used for controlling a circulation pump. For the control logic, 5 different variants are available:

• Thermal

• Timer

• Thermal + Timer

• Demand

• Demand + Timer If one of the variants is selected, the corresponding adjustment channels will appear.

Thermal

The temperature at the allocated sensor is monitored. The allocated relay switches on when the temperature falls below the adjusted switch-on temperature. If the temperature exceeds the switch-off temperature, the relay switches off.

Timer

The relay is switched on during the adjusted time frames, outside of them it switches off. For information on how to adjust the timer, see below.

Thermal + Timer

The relay operates when the switch-on conditions of both above mentioned vari-

ants are ful lled.

Demand

The allocated FS08  ow switch is monitored for circuit continuity. If circuit conti- nuity is detected at the  ow switch, the relay switches on for the adjusted runtime.

After the runtime has ended, the relay is switched off. During the adjusted break

time, the relay remains switched off even if continuity is detected at the  ow switch.

Demand + Timer

The relay operates when the switch-on conditions of both above mentioned variants are ful lled. When the Timer, Therm. + Timer or Demand + Timer var- iant is activated, a timer is indicated in which time frames for the function can be adjusted.

Note: For more information about timer adjustment, see page 10.

Return preheating

Arrangement / Opt. functions / Add new function / Return preheating

Adjustment channel Relay Relay selection system dependent system dependent

Sen. Return Return sensor selection system dependent system dependent Sen. Source Heat source sensor selection system dependent system dependent

DTo n

DToff

Summer off Summer switch-off option Yes, No No Sensor Outdoor sensor selection system dependent system dependent Toff Switch-off temperature 10 … 60 °C 20 °C

Funct. Activation / Deactivation

Sensor Sensor input allocation - Save / Delete

function

Description

Switch-on temperature difference 2.0 … 30.0 K 6.0 K

Switch-off temperature difference 1.0 … 29.0 K 4.0 K

Save / Delete function - -

Adjustment range / selection

Activated, Deactivated, Switch

Factory setting

Activated

InstallationIndications, functions and optionsMessages Commissioning Operation and function

Circulation sensor

Relay

Sen. HSource

Relay

Return sensor

The Return preheating function can be used for transferring heat from a heat source to the heating circuit return.

The allocated relay is energised when both switch-on conditions are ful lled:

Installation Indications, functions and options

• the temperature difference between the allocated sensors has exceeded the switch-on temperature difference

• the temperature at the outdoor temperature sensor has fallen below the adjusted outdoor temperature (valid only if the Summer off option has been activated)

With the summer switch-off option, the return preheating can be suppressed outside the heating period.

CommissioningOperation and function

Messages

Function block

Arrangement / Opt. functions / Add new function / Function block

Adjustment channel Relay Relay selection system dependent system dependent Thermostat a Option Thermostat a Yes, No No Th-a on Switch-on temperature Thermostat a -40 … +250 °C +40 °C Th-a off Switch-off temperature Thermostat a -40 … +250 °C +45 °C Sensor Sensor thermostat a system dependent system dependent Thermostat b Option Thermostat b Yes, No No Th-b on Switch-on temperature Thermostat b -40 … +250 °C +40 °C Th-b off Switch-off temperature Thermostat b -40 … +250 °C +45 °C Sensor Sensor thermostat b system dependent system dependent

DT function

DTo n

DToff

DTset

Min. speed Minimum speed (20) 30 … 100 % 30 % Sen. Source Heat source sensor system dependent system dependent Sen. Sink Heat sink sensor system dependent system dependent Timer Timer option Yes, No No Reference relay

Mode Reference relay mode

Relay Reference relay 1 all relays Relay Reference relay 2 all relays Relay Reference relay 3 all relays -

Funct. Activation / Deactivation

Sensor Sensor input allocation - Save / Delete function

Description

Differential function Yes, No No

Switch-on temperature difference 1.0 … 50.0 K 5.0 K

Switch-off temperature difference 0.5 … 49.5 K 3.0 K

Set temperature difference 3 … 100 K 10 K

Reference relay option Yes, No No

Save / Delete function - -

Adjustment range / selection

OR, AND, NOR, NAND

Activated, Deactivated, Switch

Factory setting

Activated

In addition to the pre-dened optional functions, function blocks consisting of ther-

mostat functions, timers, differential functions and reference relays are available. With the help of these function blocks, further components, resp. functions can be controlled.

To each function block, sensors and free relays can be allocated. Sensors already in use can be allocated again without impeding their control functions.

Within a function block the functions are interconnected (AND gate). This means

that the switching conditions of all the activated functions have to be fullled (e. g.

thermostat and timer) for switching the allocated relay. As soon as one condition is

not fullled, the relay is switched off.

Thermostat function

The switch-on condition for the thermostat function is considered fullled when

the adjusted switch-on temperature (Th(x) on) is reached.

It is considered unfullled when the adjusted switch-off temperature (Th(x)off) is

reached. Allocate the reference sensor in the Sensor channel.

Adjust the maximum temperature limitation with Th(x)off> Th(x)on and the minimum temperature limitation with Th(x)on> Th(x)off. The temperatures cannot be

set to an identical value.

DT function

The switch-on condition for the DT function is considered fullled when the adjust- ed switch-on temperature (DT(x) on) is reached.

It is considered unfullled when the adjusted switch-off temperature (DT(x)off) is reached.

The DT function is equipped with a speed control function. A set temperature difference and a minimum speed can be adjusted. The non-adjustable rise value is 2 K.

Reference relay

Up to 3 reference relays can be selected. Whether the reference relays are to be switched in series (AND), in parallel (OR), in series inverted (NAND) or in parallel inverted (NOR) can be adjusted in the Mode channel.

In the OR mode, the switch-on condition for the reference relay function is consid-

ered fullled when at least one of the reference relays is active.

If none of the reference relays is active, the switch-on condition for the reference

relay function is considered unfullled.

In the NOR mode, the switch-on condition for the reference relay function is con-

sidered fullled when none of the reference relays is active.

As soon as at least one of the reference relays is active, the switch-on condition for

the reference relay function is considered unfullled.

In the AND mode, the switch-on condition for the reference relay function is considered fullled when none of the reference relays is inactive.

As soon as at least one of the reference relays is inactive, the switch-on condition

for the reference relay function is considered unfullled.

In the NAND mode, the switch-on condition for the reference relay function is

considered fullled when at least one of the reference relays is inactive.

If none of the reference relays is inactive, the switch-on condition for the reference

relay function is considered unfullled.

Note: If more than one function block has been activated, relays of numerically

higher function blocks may not be used as reference relays.

Note: For more information about timer adjustment, see page 10.

Reference relay 1

Reference relay

Reference relay 2

R3*

Reference relay 3

Function

Thermostat a Thermostat b

DT function

Timer

Reference relay

Relay

Tha-S3* Thb-S4 Timer

Reference relay

DT-S3>S4*

* exemplary selection, sensors and relays can be allocated freely

Reference relay 1

Reference relay 2

Reference relay 3

1. in parallel (OR) 2. in series (AND)

InstallationIndications, functions and optionsMessages Commissioning Operation and function

10 Heating

Installation Indications, functions and options

10.2 Optional functions

In this menu, all adjustments for the heating part of the arrangement can be made. Demands can be activated and optional functions can be selected and adjusted.

Heating / Demands

Adjustment channel Description Adjustment range / selection Factory setting

Dem. 1 (2) Demand 1 (2) Activated, Deactivated Deactivated

Relay Relay selection system dependent -

10.1 Demands

CommissioningOperation and function

In this menu, up to 2 heating demands can be activated and adjusted.

Activated demands will be available for selection in the relay allocation channels of the corresponding optional functions. This way, several optional functions can demand the same heat source.

If, for example the potential-free relay R4 is allocated to Demand 1, the selection Dem. 1 will then become available in addition to the free relays in the adjustment channels Demand of the optional functions for the heating part of the system. This

way, e. g. the DHW heating function can demand the same boiler for afterheating as

the thermal disinfection function.

Messages

In this menu, optional functions can be selected and adjusted for the heating part of the arrangement.

By selecting Add new function, different pre-programmed functions can be selected. The optional functions are available as long as free relays are available.

When a function is selected, a sub-menu opens in which all adjustments required can be made.

With this sub-menu, a relay and, if necessary, certain system components can be allocated to the function.

The menu items Demand and Relay for the relay selection are available in all optional heating functions. Therefore, they will not be explained in the individual function descriptions.

With these menu items, relays can be allocated to the selected functions. All free relays are available for selection.

If Free is selected, the function will run normally in the software but will not operate a relay.

By selecting Switch, the function can be activated or deactivated respectively by means of an external switch.

If Switch is selected, the channel Sensor will appear. In this channel, the sensor input to which the switch is to be connected can be allocated to the function.

When a function has been adjusted and saved, it will appear in the Opt. functions menu above the menu item Add new function.

This allows an easy overview of functions already saved. An overview about which sensor has been allocated to which component and which

relay has been allocated to which function is given in the Status / Service menu. At the end of each optional function sub-menu, the menu items Function and

Save function are available. In order to save a function, select Save function and con rm the security enquiry

by selecting Ye s. In functions already saved, the menu item Delete function appears instead.

In order to delete a function already saved, select Delete function and con rm the security enquiry by selecting Ye s .

InstallationIndications, functions and optionsMessages Commissioning Operation and function

Thermal disinfection

Installation Indications, functions and options

Starting time delay

Heating / Opt. functions / Add new function / Th. disinfection

Adjustment channel Demand Demand relay selection system dependent system dependent Circulating pump Circulating pump option Yes, No No Relay Circulating pump relay selection system dependent system dependent Sensor Disinfection sensor selection system dependent system dependent Interval Monitoring period 0 … 30, 1 … 23 (dd:hh) 1d 0h Temperature Disinfection temperature 45 … 90 °C 60 °C Duration Disinfection period 0.5 … 24.0 h 1.0 h

CommissioningOperation and function

Starting time Starting delay option Yes, No No Starting time Starting time 00:00 … 23:30 20:00

Hyst. off Switch-off hysteresis 2 … 20 K 5 K Hyst. on Switch-on hysteresis 1 … 19 K 2 K

TD holid. off

Funct. Activation / Deactivation

Sensor Sensor input allocation - Save / Delete function

Description

Thermal disinfection off when holiday function is active

Save / Delete function - -

Adjustment range / selection

Yes, No No

Activated, Deactivated, Switch

Factory setting

Activated

This function helps to contain the spread of Legionella in DHW stores by system-

atically activating the afterheating. One sensor and one relay can be selected for this function. For thermal disinfection, the temperature at the allocated sensor has to be monitored.

The monitoring period starts as soon as the temperature at the allocated sensor falls below the disinfection temperature. When the monitoring period ends, the allocated reference relay activates the afterheating. The disinfection period starts,

Messages

if the temperature at the allocated sensor exceeds the disinfection temperature. Thermal disinfection can only be completed when the disinfection temperature is exceeded for the duration of the disinfection period without any interruption.

If the starting delay option is activated, a starting time for the thermal disinfection with starting delay can be adjusted. The activation of the afterheating is then delayed until that starting time after the monitoring period has ended. If the monitoring period ends, for example, at 12:00 o’clock, and the starting time has been set to 18:00, the reference relay will be energised with a delay of 6 hours at 18:00 instead of 12:00 o’clock.

If the TD holid. off option is activated, the Thermal disinfection function will re- main inactive while the holiday function is active.

DHW heating

Heating / Opt. functions / Add new function / DHW heating

Adjustment channel Demand Demand relay selection system dependent system dependent

Loading pump Loading pump option Yes, No No Relay Loading pump relay selection system dependent system dependent Overrun time Overrun option Yes, No No Duration Overrun time 1 … 10 min 1 min Mode Operating mode Zone, Therm. Therm. Sensor 1 Allocation Sensor 1 system dependent system dependent

Sensor 2

To n Switch-on temperature 0 … 94 °C 40 °C Toff Switch-off temperature 1 … 95 °C 45 °C Timer Timer option Yes, No No

DHW holid. off

Funct. Activation / Deactivation

Sensor Sensor input allocation - Save / Delete

function

Description

Allocation Sensor 2 (only if Mode = Zone)

DHW heating off when holiday

function is active

Save / Delete function - -

Adjustment range / selection

system dependent system dependent

Yes, No No

Activated, Deactivated, Switch

Factory setting

Activated

The DHW heating is used for demanding an afterheating for heating the DHW store.

If the Loading pump option is activated, the adjustment channel Relay appears, in which a relay can be allocated to the loading pump. The allocated relay is switched on and off with the demand relay.

If the Overrun time option is activated, the adjustment channel Duration appears, in which the overrun time can be adjusted. If the overrun time option is activated, the loading pump relay remains switched on for the adjusted Duration after the demand relay has been switched off.

For the DHW heating, 2 different modes are available:

Thermal mode The allocated demand relay is switched on when the temperature at the allocated

Sensor 1 falls below the adjusted switch-on temperature. If the temperature at the allocated sensor 1 exceeds the adjusted switch-off temperature, the relay is switched off.

Zone mode If the Zone mode has been selected, another sensor can be allocated in the channel

Sensor 2. The switch-on, or the switch-off conditions respectively, then have to be

ful lled at both sensors in order for the relay to be switched on or off.

When the Timer option is activated, a timer is indicated in which time frames for the function can be adjusted.

Note: For more information about timer adjustment, see page 10.

When the DHW holid. off option is activated, the DHW heating function will remain inactive while the holiday function is active.

InstallationIndications, functions and optionsMessages Commissioning Operation and function

11 HQM

Installation Indications, functions and options

HQM / new HQM…

Adjustment channel Flow sen. Flow sensor selection system dependent system dependent

Return sen. Return sensor selection system dependent system dependent Flow rate sen. Flow rate sensor option Yes, No No Flow rate sen. Flow rate sensor selection S5, S6, S7 -

Flow r…

CommissioningOperation and function

Relay Relay selection system dependent -

Fluid type Heat transfer  uid

Ratio

Alternative unit

Unit Alternative display unit Coal, Gas, Oil, CO Factor Conversion factor 0.0000001 … 100.0000000 0,5000000

Funct. Activation / Deactivation

Sensor Sensor input allocation Save / Delete

function

Description

Flow rate (only if Flow rate sen. = No)

Glycol ratio in the heat transfer

 uid (only if Fluid type = Propyl-

ene glycol or Ethylene glycol)

Alternative unit option Yes, No No

Save / Delete function

Adjustment range / selection

1.0 … 500.0 l / min 3.0 l / min

Tyfocor LS, Propylene glycol, Ethylene glycol, Water

20 … 70 % 40 %

Activated, Deactivated, Switch

Factory setting

Water

Activated

In the HQM menu, up to 2 internal heat quantity measurements can be activated and adjusted.

Messages

By selecting the menu item new HQM…, a new heat quantity measurement can be activated.

A submenu opens in which all adjustments required for the heat quantity measurement can be made.

If the Flow rate sensor option is activated, the impulse input or, if available, a Grundfos Direct Sensor™ can be selected. The FlowRotor and the Grundfos Direct Sensors™ are only available if they have been previously registered in the In- / Outputs menu. The impulse rate must be adjusted in that menu as well.

Flow rate sensor inputs:

• V40 = S5 / V40

• Grundfos Direct Sensor

= S6

• FlowRotor = S7 If the Flow rate sensor option has been activated and a relay allocated, heat quantity

measurement will only take place when the allocated relay is switched on. If the Flow rate sensor option is deactivated, the controller calculates the heat

quantity by means of a  xed  ow rate value (heat quantity balancing). The heat quantity balancing (estimation) uses the difference between the  ow and return temperatures and the entered  ow rate (at 100 % pump speed).

Î Read the  ow rate (l / min) and adjust it in the channel Flow rate. Î Adjust the antifreeze type and concentration of the heat transfer  uid in the

channels Fluid type and Ratio.

When the Alternative unit option is activated, the controller will convert the heat quantity into the quantity of fossil fuels (coal, oil or gas) saved, or the CO saved respectively. The alternative Unit can be selected. A conversion Factor must

emission

be adjusted for the calculation. The conversion factor depends on the arrangement in use and has to be determined individually.

Note: In 2-store systems, the heat quantity of both stores can be measured with

one  owmeter.

Heat quantity measurements already saved will appear in the HQM menu above the

menu item new HQM… in numerical order. If a heat quantity measurement already saved is selected, the above mentioned submenu with all adjustment values will re-open.

With the menu item Function, a heat quantity measurement already saved can be temporarily deactivated or re-activated respectively. In this case, all adjustments will remain stored.

With the selection Switch, the heat quantity measurement can be activated or deactivated respectively by means of an external switch.

If Switch is selected, the channel Sensor will appear. In this channel, the sensor input to which the switch is to be connected can be allocated to the function.

12 Basic settings

InstallationIndications, functions and optionsMessages Commissioning Operation and function

At the end of each HQM submenu, the menu items Function and Save function are available. In order to save a heat quantity measurement, select Save function and con rm the security enquiry by selecting Ye s . In heat quantity measurements already saved, the menu item Delete function will appear instead.

In order to delete a heat quantity measurement already saved, select Delete function and con rm the security enquiry by selecting Yes. The heat quantity measurement deleted will disappear from the list and become available for selection in the new HQM… menu again.

In the Basic settings menu, all basic parameters for the controller can be adjusted. Normally, these settings have been made during commissioning. They can be subsequently changed in this menu.

Basic settings

Adjustment channel Language Selection of the menu language Deutsch, English, Français,

Auto DST Date Adjustment of the current date 01.01.2001 … 31.12.2099 01.01.2012 Time Adjustment of the current time 00:00 … 23:59 Temp. unit Vol. unit Volume unit Gallons, Litre Litre Press. unit Pressure unit psi, bar bar Energy unit Energy unit kWh, MBTU kWh Factory setting back to factory settings Yes, No No Scheme Selection of pre-programmed

Ethernet* LAN adjustments

*: The Ethernet menu is only visible when the controller is equipped with a LAN interface.

Description Adjustment range / selection

Español, Italiano, Nederlands, Türkçe, Portugues, Hrvatski, Română,

Български, Русский, Suomi,

Daylight savings time selection

Temperature unit °C, °F °C

system schemes

Svenska, Magyar

Yes, No Ye s

0000 … 9999 -

České, Polski,

Factory setting Deutsch

Ethernet

Note: The Ethernet menu is only visible when the controller is equipped with

Installation Indications, functions and options

a LAN interface.

Basic settings / Ethernet

Adjustment channel Auto IP Automatic IP address distribution On, Off On IP address Static IP address selection - Network mask Net mask selection - Gateway Gateway selection - Save Save adjustments Yes, No No

Description

Adjustment range / selection

Factory setting

The controller is equipped with a LAN interface for connecting it to a computer or

router by means of a network cable (CAT5e, RJ45).

When UPnP access is activated on the computer in use, the operating system will automatically recognise the LAN interface of the controller. Its IP address can then

CommissioningOperation and function

be seen in the Status / Ethernet menu.

Note:

In MS Windows from version 7 on, UPnP access is activated by default. In earlier versions, UPnP access must be activated manually.

If the IP addresses in the local network are not assigned by a DHCP server, proceed

as follows:

Web interface

All adjustments for the LAN interface of the controller can be made with the Web interface. The Web interface is integrated in the controller and can be run on an Internet browser.

The web interface has the following functions:

• Displaying the status of the LAN interface.

• Conguring the LAN interface.

• Adjusting the network settings of the LAN interface.

In order to access the Web interface, enter the IP address of the LAN interface into the address bar of the browser.

Messages

The Web interface is not designed for access to the controller data, but for adjusting the network settings of the LAN interface.

When the Settings menu is selected, an authentication enquiry will appear.

Enter the following credentials to authenticate: User name: admin Password: vbus

By means of the Settings menu of the Web interface, the following settings can be adjusted:

• Assign a static IP address to the LAN interface of the controller.

• Change the name and the password of the LAN interface.

• Reset all settings of the LAN interface to their factory settings.

• Select the menu language for the Web interface.

• Change the UPnP-port number.

• Change the MTU.

Change the password

Note:

The password is valid for the Web interface authentication enquiry as well as for the access via RSC / RPT!

The default password for the authentication enquiry of the LAN interface is vbus. It can be changed in order to prevent unauthorised access. In order to change the password, proceed as follows:

Î Click on Settings in the Web interface. Î Enter the desired password into the VBus Password input eld. Î Click on Update Settings.

The new password will be saved. Accessing the device is not possible without the correct password.

Î Note down the new password and keep it carefully!

Changing the module name

In the same menu, a new module name can be assigned to the LAN interface. The device will be displayed with its module name in the network.

Î Enter the desired name into the Module Name input  eld. Î Click on Update Settings.

The new module name will be saved.

Accessing the LAN interface over the Internet

Note:

The DeviceDiscoveryTool cannot be used for  nding a controller with LAN interface over the Internet.

The following preparations have to be made when a LAN interface connected to the Internet via a router is to be accessed over the Internet:

Î Assign a static address to the router. Î Carry out port routing in the router.

Assigning a static router address

In order to access the router and the LAN interface connected over the Internet, a static address has to be assigned to the router.

There are 2 different ways to assign a static Internet address to the router:

• Over a dynamic Domain Name Server (DynDNS)

• Over a static Internet IP address

Using a dynamic Domain Name Server (DynDNS)

Por t

DynDNS

DynDNS address

+ port

Schematic representation: Remote access to the LAN interface of the controller, router with DynDNS address.

Note:

Not all routers support DynDNS services. For further information consult the router documentation.

It is possible to reserve an Internet address via a DynDNS service provider. DynDNS services are usually free of charge.

Schematic process representation of using a DynDNS address:

1. Open an account for a DynDNS Internet address at a DynDNS service provider. A DynDNS Internet address and the corresponding access information will be provided.

2. The DynDNS access information has to be entered into the router, so that the router can tell the DynDNS service provider where to route enquiries to.

3. In order to access the router via the Internet, the user has to enter the DynDNS Internet address into the Internet browser.

InstallationIndications, functions and optionsMessages Commissioning Operation and function

Using a static Internet IP address

Installation Indications, functions and options

Por t

Static Internet IP

address

Static IP address

+ port

Schematic representation: Remote access to the LAN interface of the controller, router with static Internet IP address.

ISP

It is possible to apply for a static Internet IP address at an Internet Service Provider (ISP). For a static IP address, there usually is a fee required.

Schematic process representation of using a static IP address:

CommissioningOperation and function

1. Apply for a static IP address at an Internet Service Provider (ISP). A static Internet address and the corresponding access information will be provided.

2. The access information has to be entered into the router, so that the router can register at the ISP with the static IP address.

3. The router registers at the ISP with the static IP address.

4. In order to access the router via the Internet, the user has to enter the static Internet address into the Internet browser.

Port routing in the router

Note:

Not all routers support port routing. For further information consult the router documentation.

In order to access, over the Internet, one or several controllers with LAN interfaces

connected to one router, port routing has to be con gured in the router.

The LAN interface of the controller communicates via the following ports:

• Web interface port: 443 (adjustable, default port: 443)

Messages

• RESOL ServiceCenter port: 7053 (non-adjustable)

In order to carry out port routing in the router, proceed as follows:

Î Assign a static LAN IP address to the LAN interface using the con guration

menu of the router.

Î Assign a port to the IP address using the con guration menu of the router.

In this example (see table below), 3 LAN interfaces are assigned 1 web interface port and 1 RESOL ServiceCenter software port each.

Example: Port routing

Device number DynDNS address

www.slt.ath.cx:443

www.slt.ath.cx:444

www.slt.ath.cx:445

www.slt.ath.cx:7053

www.slt.ath.cx:7054

www.slt.ath.cx:7055

Port routing from port:

443 443 192.168.0.10

444 443 192.168.0.11

445 443 192.168.0.12

7053 7053 192.168.0.10

7054 7053 192.168.0.11

7055 7053 192.168.0.12

Port routing to port:

LAN IP

13 MicroSD card

SD card

Adjustment channel

Rem. time Remaining logging time

Remove card… Safely remove card

Save adj. Save adjustments

Load adj. Load adjustments Logging interval Data logging interval 00:01 … 20:00 (mm:ss) 01:00 Logging type Logging type Cyclic, Linear Linear Format card Start formatting memory card

Description

Adjustment range / selection

Factory setting

The controller is equipped with a MicroSD card slot for MicroSD memory cards. With a MicroSD card, the following functions can be carried out:

• Logging measurement and balance values. After the transfer to a computer, the values can be opened and visualised, e. g. in a spreadsheet.

• Store adjustments and parameterisations on the MicroSD card and, if necessary, retrieve them from there.

• Running rmware updates on the controller.

Firmware updates

The current software can be downloaded from www.resol.com / rmware. When a MicroSD card with a rmware update is inserted, the enquiry Update? is indicated on the display.

Î In order to run an update, select Ye s and conrm with the right button (✓).

The update is run automatically. The indication Please wait and a progress bar appear on the display. When the update has been completed, the controller will automatically reboot and run a short initialisation phase.

Note: Only remove the card when the initialisation phase has been completed and the main menu is indicated on the controller display!

Î To skip the update, select No.

The controller commences normal operation.

Note:

The controller will only recognise a rmware update le if it is stored in a

folder named RESOL\SLT on the rst level of the MicroSD card.

ÎCreate a folder named RESOL\SLT on the MicroSD card and extract

the downloaded ZIP le into this folder.

Starting the logging

Î Insert the MicroSD card into the slot. Î Adjust the desired logging type and interval.

Logging will start immediately.

Completing the logging process

Î Select the menu item Remove card…. Î After Remove card is displayed, remove the card from the slot.

When Linear is adjusted in the Logging type adjustment channel, data logging will stop if the capacity limit is reached. The message Card full will be displayed.

If Cyclic is adjusted, the oldest data logged onto the MicroSD card will be overwritten as soon as the capacity limit is reached.

Note: Because of the increasing size of the data packets, the remaining logging time does not decrease linearly. The data packet size can increase, e. g. with the increasing operating hours value.

Storing controller adjustments

Î To store the controller adjustments on an MicroSD card, select the menu item

Save adjustments.

While the adjustments are being stored, rst Please wait, then Done! will be indicated on the display. The controller adjustments are stored as a .SET le on the MicroSD card.

Loading controller adjustments

Î To load controller adjustments from a MicroSD card, select the menu item

Load adjustments.

The File selection window is indicated.

Î Select the desired .SET le.

While the adjustments are being loaded, rst Please wait, then Done! will be indicated on the display.

Formatting the MicroSD card

Î Select the menu item Format card.

The content of the card will be deleted and the card will be formatted with the

FAT le system.

Note: To safely remove the MicroSD card, always select the menu item Remove card… before removing the card.

InstallationIndications, functions and optionsMessages Commissioning Operation and function

14 Manual mode

Installation Indications, functions and options

15 User code

Manual mode

Adjustment channel Relay 1 … X Operating mode selection On, Max, Auto, Min, Off Auto

All relays… Operating mode of all relays Auto, Off Auto

Description

Adjustment range / selection

Factory setting

In the Manual mode menu, the operating mode of the relays can be adjusted. In the menu item All relays…, all relays can be switched off (Off) or set to auto-

matic mode (Auto) at once:

CommissioningOperation and function

Off = Relay is switched off (manual mode) Auto = Relay is in automatic mode

The operating mode can be selected for each individual relay, too. The following options are available: On = Relay active at 100 % speed (manual mode) Off = Relay is switched off (manual mode) Min = Relay active with minimum speed (manual mode) Max = Relay active with maximum speed (manual mode) Auto = Relay is in automatic mode

Note:

Messages

After service and maintenance work, the relay mode must be set back to Auto. Normal operation is not possible in manual mode.

The access to some adjustment values can be restricted via a user code (customer).

1. Installer 0262 (Factory setting) All menus and adjustment values are shown and all values can be altered.

2. Customer 0000 The installer level is not shown, adjustment values can be changed partly.

For safety reasons, the user code should generally be set to the customer code before the controller is handed to the customer!

Î In order to restrict the access, enter 0000 in the menu item User code.

16 In- / Outputs

In the In- / Outputs menu, sensor offsets can be adjusted and relay outputs can

be con gured.

16.1 Inputs

In this sub-menu, the type of the sensor connected can be adjusted for each individual input. The following types can be selected:

S1 … S4 : Switch, KTY, Pt500, Pt1000, None S5 : Switch, KTY, Pt500, Pt1000, Impulse, None S6 : VFS, RPS, None S7 : DN20, DN25, DN32, None

ATTENTION!

System damage!

Selecting the wrong sensor type will lead to unwanted controller actions. In the worst case, system damage can occur!

Î Make sure that the right sensor type is selected!

If VFS, RPS, KTY, Pt500 or Pt1000 are selected, the channel Offset appears, in which an individual offset can be adjusted for each sensor.

Note:

When a Grundfos Direct Sensor

is used, it will appear as S6 in the sen-

sor selection of all functions.

Note:

When a Grundfos Direct SensorTM is used, the sensor ground common terminal block must be connected to PE (see page 6).

In- / Outputs / Inputs

Adjustment channel S1 … S7 Sensor input selection - -

Type Sensor type selection (S1 … S4)

Offset Sensor offset -15.0 … +15.0 K 0.0 K S5 Impulse input selection - -

Type Sensor type selection (S5)

Inverted Switch inversion (only when Type = Switch) Yes, No No

Vol. / Imp. S6 Grundfos Direct Sensor Type Grundfos Direct Sensor Max. Maximum pressure (if Type = RPS) 0.0 … 16.0 bar 6 bar Min. Minimum  ow rate (if Type = VFS) 1 … 399 l / min 2 l / min Max. Maximum  ow rate (if Type = VFS) 2 … 400 l / min 40 l / min S7 FlowRotor selection - Type FlowRotor nominal width (S7)

Description

Impulse rate 0.1 … 100.0 1,0

selection

type RPS, VFS, None None

Adjustment range / selection

Switch, KTY, Pt500,

Pt1000, None

Impulse, Switch, KTY,

Pt500, Pt1000, None

DN20, DN25, DN32, None

Factory setting

Pt1000

Impulse

DN20

16.2 Outputs

In- / Outputs / Outputs

Adjustment channel

R1 … R4 Relay output selection - -

Signal Signal type Adapter, 0-10 V, PWM, Standard system dependent

Output PWM output selection Output A, Output B -

Pro le PWM characteristic curve Solar, Heating Solar

Min. speed Minimum speed (20) 30 … 100 % system dependent

Max. speed Maximum speed (20) 30 … 100 % system dependent

Description Adjustment range / selection Factory setting

InstallationIndications, functions and optionsMessages Commissioning Operation and function

max

min

max

Installation Indications, functions and options

In this menu, the signal type and the minimum speed can be adjusted for each individual relay.

The signal type determines the way speed control of a connected pump is effected. The following modes are available:

Adapter = Speed control signal via a VBus® / PWM interface adapter 0-10 V = Speed control via a 0-10 V signal PWM = Speed control via a PWM signal Standard = Burst control (factory setting) Speed control of a HE pump is possible via a PWM signal / 0-10 V control. The pump

has to be connected to the relay (power supply) as well as to one of the PWM A / B outputs of the controller.

CommissioningOperation and function

If PWM is selected, the channels Output and Pro le appear. In the Output chan- nel, one of the 2 PWM outputs can be selected. In the Pro le channel, PWM char-

acteristic curves for solar and heating pumps can be selected.

Note:

If PWM, Adapter or 0-10 V is selected for an output, the adjustment range for the corresponding minimum speed will extend to 20 … 100 %.

Signal characteristic: PWM; Pro le: Solar

Signal characteristic: PWM; Pro le: Heating

100

PWM %

Note:

When the minimum pump speed value adjusted in the Outputs menu differs from the minimum pump speed adjusted in an optional function that uses the same output, only the higher value will be come into effect.

Sensors

GND

1234

S5/V40

PWM A

PWM B

0-10 V

56789

0-10 V

VBus

10 11

IP 20

R1-R3|1 (1) A 240 V~R4|1 (1) A 30V

R3R2R1

R3 R2 R1 L

N N N N

100 ... 240 V

T4A

50-60 Hz

Messages

min

127

100

PWM %

Example of the electrical connection of a high-ef ciency pump

17 Troubleshooting

If a malfunction occurs, a message will appear on the display of the controller.

WARNING!

Electric shock!

Upon opening the housing, live parts are exposed!

Î Always disconnect the controller from power supply

before opening the housing!

Fuse

Lightwheel

is ashing red.

Sensor fault. An error code instead of a temperature

is shown on the sensor display channel.

Short circuit or line break

Disconnected temperature sensors can be checked with an ohmmeter. Please check if the resistance values correspond with the table.

°C °F Ω

Pt500ΩPt1000

-10 14 481 961 1499 55 131 607 1213 2502

-5 23 490 980 1565 60 140 616 1232 2592 0 32 500 1000 1633 65 149 626 1252 2684 5 41 510 1019 1702 70 158 636 1271 2778

10 50 520 1039 1774 75 167 645 1290 2874 15 59 529 1058 1847 80 176 655 1309 2971 20 68 539 1078 1922 85 185 664 1328 3071 25 77 549 1097 2000 90 194 634 1347 3172 30 86 559 1117 2079 95 203 683 1366 3275

35 95 568 1136 2159 100 212 693 1385 3380

40 104 578 1155 2242 105 221 702 1404 3484 45 113 588 1175 2327 110 230 712 1423 3590 50 122 597 1194 2413 115 239 721 1442 3695

KTY

°C °F Ω

Pt500ΩPt1000

KTY

The controller is protected by a fuse. The fuse holder (which also holds the spare fuse) becomes accessible when the cover is removed. To replace the fuse, pull the fuse holder from the base.

The display is permanently off.

Press the right button (✓). Display illuminated?

Controller has been in

standby, everything o.k.

Check the power supply of the controller. Is it disconnected?

The fuse of the controller could be blown. The fuse holder (which holds the spare fuse) becomes accessible when the cover is removed.The fuse can then be replaced.

Check the supply line and reconnect

it.

yes

InstallationIndications, functions and optionsMessages Commissioning Operation and function

Pump is overheated, but no heat transfer from the collector to the store, ow and

return have the same temperature; perhaps also bubbling in the lines.

Air or gas bubbles in the system?

Installation Indications, functions and options

no yes

Vent the system; increase the system pressure to a static primary pressure of at least plus 0.5 bar;

Is the collector circuit blocked at

the dirt trap?

if necessary continue to increase pressure; switch the pump on and off for a short time.

yes

Clean dirt trap

Pump starts up very late.

Switch-on temperature difference

DTon too large?

no yes

Non-ideal position of the collector

sensor (e. g. atscrew sensor instead

of sensor in immersion sleeves).

yes

Change DTon and DToff correspond-

ingly.

Activate tube collector function if

necessary.

o.k.

Pump starts for a short moment, switches off, switches on again, etc.

CommissioningOperation and function

Temperature difference at the

controller too small?

no yes

Change DTon and DToff correspondingly.

Wrong position of collector

sensors?

yes

Mount the collector sensor at solar

ow (warmest collector output); use

Plausibility control of the option

tube collector special function

Messages

immersion sleeve of the respective collector.

o.k.

The temperature diffrence between store and collector increases enormously during operation; the collector circuit cannot dissipate the heat.

Collector circuit pump defective?

yes

Check / replace it

Heat exchanger calcied?

yes

Decalcify it

Heat exchanger blocked?

yes

Clean it

Heat exchanger too small?

yes

Replace with correctly sized one.

The solar circuit pump does not work, although the collector is considerably warmer than the store.

Display illuminated?

If not, press the right button (✓). Dis- play illuminated again?

yes no

Does the pump start up in manual

operation?

Is the pump current enabled by the

controller?

Controller might be defective -

replace it.

Pump is defective - replace it.

Stores cool down at night.

Collector circuit pump runs during

the night?

no yes

Collector temperature at night is

higher than the outdoor temperature.

no yes

Sufcient store insulation?

yes no

yes

yesno

There is no current; check fuses / re-

place them and check power supply.

The adjusted temperature difference

for starting the pump is too high; choose a value which makes more sense.

Is the pump stuck?

yes

Turn the pump shaft using a screw-

driver; now passable?

Check controller

Check the non-return valves in the

ow and the return pipe for function-

al efciency.

Increase insulation.

Insulation close enough to the store?

yes no

Are the store connections insulated?

yes no

Warm water outow upwards?

no yes

Does the DHW circulation run for

a very long time?

no yes

Circulation pump and blocking valve should be switched off for 1 night; less store losses?

yes no

Check the non-return valve in warm water circulation - o.k.

yes no

The gravitation circulation in the circulation line is too strong; insert a stronger valve in the non-return valve or an electrical 2-port valve behind the circulation pump; the 2-port valve is open when the pump is activated, otherwise it is closed; connect pump and 2-port valve electrically in parallel; activate the circulation again. Deactivate pump speed control!

Replace insulation or increase it.

Insulate the connections.

Change connection and let the water

ow sidewards or through a siphon

(downwards); less store losses now?

no yes

o.k.

Use the circulation pump with timer and switch-off thermostat (energy-efcient circulation).

Check whether the pumps of the after-heating circuit run at night; check whether the non-return valve is defective; problem solved?

Further pumps which are connected to the solar store must also be checked.

Clean or replace it.

InstallationIndications, functions and optionsMessages Commissioning Operation and function

VBus.net

18 Accessories

Installation Indications, functions and options

Sensors

Overvoltage protection

CommissioningOperation and function

device

VFS and RPS Grundfos Direct

Sensors

V40  owmeter

Messages

VBus® / USB & VBus® / LAN

interface adapters

SD3 Smart Display / GA3

Large Display

AM1 Alarm module

™

KM1 Communication

module

DL2 Datalogger

DL3 Datalogger

18.1 Sensors and measuring instruments

Sensors

The product range includes high-precision platinum temperature sensors, atscrew

sensors, outdoor temperature sensors, indoor temperature sensors, cylindrical clipon sensors, also as complete sensors with immersion sleeve.

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 SP10.

VFS and RPS Grundfos Direct Sensors™

The RPS Grundfos Direct Sensor™ is an analogue sensor that measures both temperature and pressure. The VFS Grundfos Direct Sensor™ is an analogue sensor that measures both tem-

perature and ow rate.

V40 owmeter

The RESOL V40 is a measuring instrument for detecting the ow of water or water / glycol mixtures. After a specic volume has passed, the V40 reed switch sends an impulse to the calorimeter. The heat quantity used is calculated by the calorimeter using these impulses and the measured temperature difference with the help of

pre-dened parameters (glycol type, concentration, heat capacity, etc.).

18.2 VBus

accessories

SD3 Smart Display / GA3 Large Display

The RESOL Smart Display is designed for simple connection to RESOL controllers with RESOL VBus

. It is used for visualising data issued by the controller: collector temperature, store temperature and energy yield of the solar thermal system. The use of high-efciency LEDs and lter glass assures a high optical brilliance. An additional power supply is not required. One module is required per controller. The RESOL GA3 is a completely mounted large display module for visualisation of collector- and store temperatures as well as the heat quantity yield of the solar system via one 6-digit and two 4-digit 7-segment-displays. An easy connection to all controllers with RESOL VBus® is possible. The front plate is made of antireective lterglass and is printed with a light-resistant UV-lacquering. The universal RESOL VBus® allows the parallel connection of 8 large displays as well as additional VBus® modules.

AM1 Alarm module

The AM1 Alarm module is designed to signal system failures. It is to be connected to

the VBus

of the controller and issues an optical signal via the red LED if a failure has occurred. The AM1 also has a relay output, which can e. g. be connected to a building management system (BMS). Thus, a collective error message can be issued in the case of a system failure. Depending on the controller and the sensors connected, different fault conditions can be signalled, e. g. sensor failures, excess or negative

system pressure as well as errors in the ow rate, such as a dry run of the pump.

The AM1 Alarm module ensures that occurring failures can be immediately recognised

and repaired, even if the system and the controller are difcult to access or located in a

remote place. Thus, the reliability and the stable yield of the system are ensured.

KM1 Communication module

The KM1 Communication module is the network connection for solar and heating

systems, especially suited for technicians managing large systems, heating installers and home owners who like to keep a close eye on their system. The system can be parameterised over the Internet. VBus.net enables e. g. controlling the system yield in a comprehensive system scheme image.

DL2 Datalogger

This additional module enables the acquisition and storage of large amounts of data (such as measuring and balance values of the solar system) over a long period of time. The DL2 can be congured and read-out with a standard Internet browser via its integrated web interface. For transmission of the data stored in the internal memory of the DL2 to a PC, an SD card can be used. The DL2 is appropriate for all controllers with RESOL VBus

. It can be connected directly to a PC or router for remote access and thus enables comfortable system monitoring for yield monitoring or for diagnostics of faults.

DL3 Datalogger

Be it solar thermal, heating or DHW heat exchange controllers – with the DL3

you can easily and conveniently log system data of up to 6 RESOL controllers. Get a comprehensive overview of all controllers connected with the large full graphic display. Transfer data with an SD memory card, or use the LAN interface to view and process data on your PC.

VBus.net

The Internet portal for easy and secure access to your system data. VBus.net is all about the data of your RESOL controller. Live data of your system,

customized lter settings and much more await you.

18.3 Interface adapters

/ USB & VBus® / LAN interface adapters

VBus

The new VBus

/ USB interface adapter is the interface between the controller and a personal computer. With its standard mini-USB port it enables a fast transmission of system data for processing, visualising and archiving system data via the VBus®. The RESOL ServiceCenter software is included.

The VBus

/ LAN interface adapter is designed for the direct connection of the controller to a PC or router. It enables easy access to the controller via the local network of the owner. Thus, controller access and data charting can be effected from every workstation of the network. The VBus® / LAN interface adapter is suitable for all controllers equipped with a RESOL VBus®. The RESOL ServiceCenter software is included.

19 Index

Afterheating suppression ................................................................................................... 32

Antifreeze, solar optional function .................................................................................. 32

Balance values ...................................................................................................................... 21

Bypass, solar optional function ......................................................................................... 29

Circulation ............................................................................................................................ 46

Collector cooling, Cooling mode .................................................................................... 34

Collector emergency temperature ................................................................................. 25

Commissioning menu ......................................................................................................... 14

Control lamp .......................................................................................................................... 9

Cooling mode ...................................................................................................................... 33

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

Data logging .......................................................................................................................... 59

DHW heating ....................................................................................................................... 53

Drainback option ................................................................................................................ 34

Electrical connection ............................................................................................................ 6

Error messages .................................................................................................................... 22

Error messages, acknowledgement of ............................................................................ 22

Error relay............................................................................................................................. 44

Flow rate monitoring ......................................................................................................... 37

Function block ..................................................................................................................... 48

Fuse, replacing of ................................................................................................................. 63

Heat dump ............................................................................................................................ 36

Heat exchange ..................................................................................................................... 45

Heating demands ................................................................................................................. 50

Heat quantity measurement ............................................................................................. 54

Holiday ..................................................................................................................................... 8

Lightwheel

Loading controller adjustments ....................................................................................... 59

............................................................................................................................. 9

Manual mode .................................................................................................................... 8, 60

Maximum store temperature ........................................................................................... 26

Meas. values .......................................................................................................................... 21

Microbuttons .......................................................................................................................... 8

MicroSD .................................................................................................................................. 7

Minimum collector limitation ........................................................................................... 25

Mixer, optional arrangement function ............................................................................ 43

Mounting ................................................................................................................................. 5

Operating hours counter .................................................................................................. 21

Operating mode, relays ...................................................................................................... 60

Overpressure ....................................................................................................................... 38

Parallel relay, optional arrangement function ................................................................ 43

Parallel relay, solar optional function .............................................................................. 33

Priority logic ......................................................................................................................... 26

PWM pump speed control ............................................................................................... 62

Return preheating ............................................................................................................... 47

Solid fuel boiler .................................................................................................................... 46

Store cooling, Cooling mode ............................................................................................ 34

Store set temperature ....................................................................................................... 26

Storing controller adjustments ........................................................................................ 59

System cooling, Cooling mode ......................................................................................... 39

Target temperature, solar optional function ................................................................. 31

Technical data ......................................................................................................................... 4

Thermal disinfection ........................................................................................................... 52

Thermostat function .......................................................................................................... 49

Tube collector function...................................................................................................... 31

Twin pump ............................................................................................................................ 35

User code ............................................................................................................................. 60

Zone loading ........................................................................................................................ 44

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.com info@resol.com

Important note

The texts 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 directions 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 the resulting damages.

Note

The design and the specications can be changed without notice.

The illustrations may differ from the original product.

Imprint

This mounting and operation manual including all parts is copyrighted. Any other use outside the copyright requires the approval of RESOL – Elektronische Regelungen GmbH. This especially applies for copies, translations, micro lms and the storage into electronic systems.

Resol DeltaSol SLT Manual For The Specialised Craftsman

Specifications and Main Features

Frequently Asked Questions

User Manual

1 Overview

1.1 Optional functions

2 Installation

2.1 Mounting

2.2 Electrical connection

2.3 Data communication / Bus

2.4 MicroSD card slot

2.5 Mini-USB port

2.6 LAN interface (optional)

3 Step-by-step parameterisation

4 Operation and function

4.1 Buttons and adjustment dial

4.2 Microbutton for manual mode and holiday mode

4.3 Control lamp

4.4 Selecting menu points and adjusting values

4.5 Menu structure

5 Commissioning

5.1 Basic systems and hydraulic variants

5.2 Overview of relay and sensor allocation

6 Main menu

7 Status

7.1 Meas. / Balance values

7.4 Heating

7.2 Solar

7.3 Arrangement

7.5 Messages

7.6 Ethernet

7.7 Service

8 Solar

8.1 Basic solar settings

8.2 Solar optional functions

8.3 Holiday function

8.4 Solar expert menu

9 Arrangement

9.1 Optional functions

10 Heating

10.2 Optional functions

10.1 Demands

11 HQM

12 Basic settings

13 MicroSD card

14 Manual mode

15 User code

16 In- / Outputs

16.1 Inputs

16.2 Outputs

17 Troubleshooting

18 Accessories

18.1 Sensors and measuring instruments

18.3 Interface adapters

19 Index