Resol DeltaSol SLL Installation, Operation, Maintenance Manual

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DeltaSol

SLL

www.resol.com

Manual

Solar controller

Manual for the specialised craftsman

Installation Operation Functions and options Troubleshooting

*11205585*

11205585

The Internet portal for easy and secure access to your system data – www.vbus.net

beginning with rmware version 1.05

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 electronically controlling standard solar thermal

systems and heating systems 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 RESOL.

Note

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

Î Make sure the controller 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!

Warnings are indicated with a warning triangle!

Î They contain information on how to avoid the danger

described.

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.

Note

Notes are indicated with an information symbol.

Î Arrows indicate instruction steps that should be carried out.

Disposal

• Dispose of the packaging in an environmentally sound manner.

• Dispose of old appliances in an environmentally sound manner. Upon request we will take back your old appliances bought from us and guarantee an environmentally sound disposal of the devices.

Solar controller DeltaSol® SLL

The DeltaSol

SLL is the smallest controller of the SL series. Its equipment

is optimised for small and medium-sized solar thermal and heating systems, 10

pre-congured basic systems are available The DeltaSol® SLL is also the rst

controller of its category to offer the automatic function control according to the VDI 2169 directive.

Contents

Additionally, it is equipped with a potential-free extra-low voltage relay for after-

heating demand and a V40 owmeter input for heat quantity measurement.

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

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

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

2.2 Electrical connection ...................................................................................................5

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

2.4 System overview ..........................................................................................................7

2.5 Systems ...........................................................................................................................8

3 Operation and function ....................................................................18

3.1 Buttons and adjustment dial ....................................................................................18

3.2 Microbutton for manual mode and holiday mode ..............................................18

3.3 Control lamp ...............................................................................................................19

3.4 Menu structure ...........................................................................................................19

3.5 Selecting menu points and adjusting values .........................................................19

3.6 resetting balance values ............................................................................................20

4 System-Monitoring-Display ..............................................................20

4.1 System screen .............................................................................................................21

4.2 Further indications ....................................................................................................21

5 Status level / Measurement values ....................................................22

6 Balance values....................................................................................22

7 Commissioning ..................................................................................23

8 Indications, functions and options....................................................26

8.1 Status level ...................................................................................................................26

8.2 Menu overview ...........................................................................................................30

9 User code and short menu - Adjustment values ............................51

10 Messages .............................................................................................51

11 Troubleshooting ................................................................................. 52

12 Accessories ........................................................................................55

12.1 Sensors and measuring instruments ......................................................................56

12.2 VBus

accessories ......................................................................................................56

12.3 Interface adapters ......................................................................................................56

13 Index ...................................................................................................57

1 Overview

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

• 4 inputs for Pt1000, Pt500 or KTY temperature sensors

• 1 V40 impulse input

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

• 10 basic systems to choose from

• Automatic function control according to VDI 2169

110

166

130

Technical data Inputs:

4 inputs for Pt1000, Pt500 or KTY temperature sensors, 1 V40 impulse input

Outputs:

2 semiconductor relays, 1 potential-free extra-low voltage relay, 2 PWM outputs

PWM frequency: 1000 Hz PWM voltage: 10,5 V Switching capacity:

1 (1) A 240 V~ (semiconductor relay) 1 (1) A 30 V⎓ (potential-free relay)

Total switching capacity: 2 A 240 V~ Power supply: 100 … 240 V~ (50 … 60 Hz) Supply connection: Y Standby: 0.71 W Temperature controls class: I

Energy efciency contribution: 1 %

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

VBus® current supply: 60 mA Functions: operating hours counter, tube collector function, thermostat function,

pump speed control, heat quantity measurement, adjustable system parameters and optional functions (menu-driven), balance and diagnostics function, function control according to VDI 2169

Housing: plastic, PC-ABS and PMMA Mounting: wall mounting, also suitable for mounting into patch panels Indication / Display: System-Monitoring-Display, for visualisation of the systems,

16-segment-display, 8 symbols for indication of the system status, Lightwheel

(adjust-

ment dial) and background illumination Operation: 4 push buttons at the front and 1 Lightwheel

)

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

Upper fastening

Lower fastening

InstallationIndications, functions and optionsMessages Commissioning Operation and function

2 Installation

2.1 Mounting

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 controller.

Î Make sure the controller 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

chap. 2.2). 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!

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!

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 3 relays in total to which loads such as pumps, valves, etc. can be connected:

• Relays 1 … 2 are semiconductor relays, designed for pump speed control: Conductor R1 … R2 Neutral conductor N Protective conductor ⏚

• Relay 4 is a potential-free low voltage relay

Note

The terminal R3 has no function!

Depending on the product version, mains cables and sensor cables are already connected to the device. If that is not the case, please proceed as follows: Connect the temperature sensors (S1 to S5) to the corresponding terminals with either polarity: S1 = Sensor 1 (collector sensor ) S2 = Sensor 2 (store sensor base) S3 = Sensor 3 (e. g. store sensor top) S4 = Sensor 4 (e. g. store sensor store 2)

Installation Indications, functions and options MessagesCommissioningOperation and function

A V40 owmeter can be connected to the terminals V40 and GND (either polarity). The terminals marked PWM are control outputs for a high-efciency pump (see

page 18).

Relay allocation for PWM outputs:

PWM A - Relay 1 PWM B - Relay 2

VBus

V40

GND

DeltaSol

SLL

Made in Germany

Sensors

100 ... 240 V

T2A

50-60 Hz

R1-R2|1 (1) A 240 V~

R4|1 (1) A 30V

IP 20

PWM APWM B

N N N N

R2 R1 L

1234

56789

10 11

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

Note

The connection depends on the system layout selected (see page 7).

Note

For more details about the initial commissioning procedure see page 23.

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 to be carried out at the two 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.

Note

More accessories on page 55.

InstallationIndications, functions and optionsMessages Commissioning Operation and function

2.4 System overview

Solar system with 1 store (page 8)

Solar system with 2 stores and valve control (page 12)

Solar system with 1 store and return preheating (page 16)

Solar system with 2 stores and heat exchange (page 9)

Solar system with 2 stores and pump control (page 13)

Solar system with 1 store and heat dump (page 17)

Solar system with 1 store and afterheating (page 10)

Solar system with east-/west collectors (page 14)

Solar system with 1 store and 3-port valve for store loading in layers (page 11)

Solar system with 1 store and solid fuel boiler (page 15)

Installation Indications, functions and options MessagesCommissioningOperation and function

2.5 Systems

System 1: Standard solar system with 1 store

The controller calculates the temperature difference between collector sensor S1 and store sensor S2. If the difference is larger than or identical to the adjusted switch-on temperature difference, the pump (R1) will be switched on and the store will be loaded until the switch-off temperature difference or the maximum store temperature is reached.

System 1 system screen

Temperature sensors

S1 Temperature collector 1 / GND

S2 Temperature store

base

2 / GND

S3 Free 3 / GND

S4 Free 4 / GND

Relay

R1 Solar pump R1 / N / PE

R2 Free R2 / N / PE

R4 Free R4 / R4

VBus

V40

GND

Sensors

Relais

PWM A

PWM B

N N N N

R2 R1 L

1234

56789

10 11

332

Mains

InstallationIndications, functions and optionsMessages Commissioning Operation and function

System 2: Solar system with 2 stores and heat exchange

Heat exchange control to an existent store via an additional pump (R2) can be carried out with another temperature differential function (S3 heat source/S4 heat sink).

System 2 system screen

Temperature sensors

S1 Temperature collector 1 / GND

S2 Temperature store

base

2 / GND

S3 Temperature heat

exchange source

3 / GND

S4 Temperature heat

exchange sink

4 / GND

Relay

R1 Solar pump R1 / N / PE

R2 Store loading pump R2 / N / PE

R4 Free R4 / R4

N N N N

10 11

332

2 2 3

VBus

V40

GND

Sensors

Relais

R2 R1 L

1234

56789

PWM A

PWM B

Mains

Installation Indications, functions and options MessagesCommissioningOperation and function

System 3: Solar system with 1 store and afterheating

Afterheating (R2 and R4) can be carried out with a thermostat function (S3). If the value at S3 reaches the switch-on temperature for the afterheating, the relay is switched on. If the value exceeds the switch-off temperature for the afterheating, the relay is switched off again.

System 3 system screen

N N N N

10 11

332

2 2 3

VBus

V40

GND

Sensors

Relais

R2 R1 L

1234

56789

PWM A

PWM B

Temperature sensors

S1 Temperature collector 1 / GND

S2 Temperature store

base

2 / GND

S3 Temperature

afterheating

3 / GND

S4 Free 4 / GND

Relay

R1 Solar pump R1 / N / PE

R2 Store loading pump R2 / N / PE

Afterheating demand

R4 / R4

Mains

InstallationIndications, functions and optionsMessages Commissioning Operation and function

System 4: Solar system with 1 store and 3-port valve for store loading in layers

The controller compares the temperature at sensor S1 to the temperatures at sensors S2 and S3. If the measured temperature differences are higher than the adjusted switch-on temperature differences, the pump (R1) will be activated and the corresponding store zone will be loaded up to the adjusted store maximum or set temperature respectively via the valve (R2). The priority logic effects prior loading of the upper zone of the store.

System 4 system screen

Temperature sensors

S1 Temperature collector 1 / GND

S2 Temperature store

base

2 / GND

S3 Temperature store top 3 / GND

S4 Free 4 / GND

Relay

R1 Solar pump R1 / N / PE

R2 Valve Solar R2 / N / PE

R4 Free R4 / R4

N N N N

10 11

332

2 2

VBus

V40

GND

Sensors

Relais

R2 R1 L

1234

56789

PWM A

PWM B

Mains

Flow direction when normally open

Installation Indications, functions and options MessagesCommissioningOperation and function

System 5: 2-store system with valve logic, 1 pump, 3 sensors and 3-port valve

The controller compares the temperature at sensor S1 to the temperatures at sensors S2 and S4. If the measured temperature differences are higher than the adjusted switch-on temperature differences, the pump (R1) will be activated and the corresponding store will be loaded up to the adjusted store maximum or set temperature respectively via the valve (R2). The priority logic effects prior loading of store 1.

System 5 system screen

Temperature sensors

S1 Temperature collector 1 / GND

S2 Temperature store

base

2 / GND

S3 Free 3 / GND

S4 Temperature store

2 base

4 / GND

Relay

R1 Solar pump R1 / N / PE

R2 Valve Solar R2 / N / PE

R4 Free R4 / R4

N N N N

10 11

332

S4S2S2

VBus

V40

GND

Sensors

Relais

R2 R1 L

1234

56789

PWM A

PWM B

Mains

Flow direction when normally open

InstallationIndications, functions and optionsMessages Commissioning Operation and function

System 6: 2-store solar system with pump logic

The controller compares the temperature at sensor S1 to the temperatures at sensors S2 and S4. If the measured temperature differences are higher than the adjusted switch-on temperature differences, the pump (R1 and/or R2) will be activated and the corresponding store will be loaded up to the adjusted store maximum or set temperature respectively at most. The priority logic effects prior loading of store 1.

System 6 system screen

R2R1

N N N N

10 11

332

VBus

V40

GND

Sensors

Relais

R2 R1 L

1234

56789

PWM A

PWM B

Temperature sensors

S1 Temperature collector 1 / GND

S2 Temperature store

base

2 / GND

S3 Free 3 / GND

S4 Temperature store

2 base

4 / GND

Relay

R1 Solar pump store R1 / N / PE

R2 Solar pump store 2 R2 / N / PE

R4 Free R4 / R4

Mains

Installation Indications, functions and options MessagesCommissioningOperation and function

System 7: Solar system with east- / west collectors

The controller compares the temperatures at the collector sensors S1 and S4 to the store temperature at sensor S2. If one of the measured temperature difference is higher than the adusted switch-on temperature difference, the corresponding pump (R1 and/or R2) will be switched on, thus loading the store until either the switch-off temperature difference or the store maximum temperature is reached.

System 7 system screen

R2R1

S1 S4

N N N N

10 11

332 2 3

VBus

V40

GND

Sensors

Relais

R2 R1 L

1234

56789

PWM A

PWM B

Temperature sensors

S1 Temperature collector 1 / GND

S2 Temperature store

base

2 / GND

S3 Free 3 / GND

S4 Temperature collector 2 4 / GND

Relay

R1 Solar pump collector R1 / N / PE

Solar pump collector 2

R2 / N / PE

R4 Free R4 / R4

Mains

InstallationIndications, functions and optionsMessages Commissioning Operation and function

System 8: Solar system with 1 store and afterheating with solid fuel boiler

With another temperature differential function (S4 heat source/S3 heat sink), afterheating of the store with a solid fuel boiler can be carried out via another pump (R2).

System 8 system screen

N N N N

10 11

332

2 2 3

VBus

V40

GND

Sensors

Relais

R2 R1 L

1234

56789

PWM A

PWM B

Temperature sensors

S1 Temperature collector 1 / GND

S2 Temperature store

base

2 / GND

S3 Temperature store top 3 / GND

S4 Temperature solid fuel

boiler

4 / GND

Relay

R1 Solar pump R1 / N / PE

R2 Loading pump solid

fuel boiler

R2 / N / PE

R4 Free R4 / R4

Mains

Installation Indications, functions and options MessagesCommissioningOperation and function

System 9: Solar system with 1 store and return preheating

With another temperature differential function (S3 heat source/S4 heat sink) return preheating (heating circuit backup) is possible via another valve (R2).

System 9 system screen

Temperature sensors

S1 Temperature collector 1 / GND

S2 Temperature store

base

2 / GND

S3 Temperature store

return preheating

3 / GND

S4 Temperature heating

return

4 / GND

Relay

R1 Solar pump R1 / N / PE

R2 Valve return preheating R2 / N / PE

R4 Free R4 / R4

N N N N

10 11

332

2 2 3

VBus

V40

GND

Sensors

Relais

R2 R1 L

1234

56789

PWM A

PWM B

Mains

Flow direction when normally open

InstallationIndications, functions and optionsMessages Commissioning Operation and function

System 10: Solar system with 1 store and heat dump

If the collector maximum temperature (CMAX) is reached, the solar pump will be energised by R1 and the 3-port valve by R2 in order to divert excess heat to a heat sink. For safety reasons, excess heat dump will only take place as long as the store temperature is below the non-adjustable shutdown temperature of 95 °C [200 °F].

System 10 system screen

Temperature sensors

S1 Temperature collector 1 / GND

S2 Temperature store

base

2 / GND

S3 Free 3 / GND

S4 Free 4 / GND

Relay

R1 Solar pump R1 / N / PE

R2 Heat dump valve R2 / N / PE

R4 Free R4 / R4

N N N N

10 11

332

S2S2

VBus

V40

GND

Sensors

Relais

R2 R1 L

1234

56789

PWM A

PWM B

Mains

Flow direction when normally open

Installation Indications, functions and options MessagesCommissioningOperation and function

3 Operation and function

3.1 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

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

3.2 Microbuttons for manual mode and holiday mode

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

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

the manual mode menu (see page 44).

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

(see page 43). If the microbutton is pressed and held down for approx. 3 s, the adjustment channel DAYS 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 H-DAY menu. The days will be counted backwards at 00:00. If the value is set to 0, the function is deactivated.

Electrical connection of a high-efciency pump (HE pump)

Speed control of a HE pump is possible via a PWM signal. 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.

Relay allocation for PWM outputs:

PWM A - Relay 1 PWM B - Relay 2

VBus

V40

GND

DeltaSol

SLL

Made in Germany

Sensors

100 ... 240 V

T2A

50-60 Hz

R1-R2|1 (1) A 240 V~R4|1 (1) A 30V

IP 20

PWM A

PWM B

N N N N

R2 R1 L

1234

56789

10 11

Note

For more information about relay control, see page 42.

InstallationIndications, functions and optionsMessages Commissioning Operation and function

3.3 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

Everything OK Manual mode: at least one relay HAND ON / mini-

mum speed / maximum speed

Red

Sensor line break, sensor short circuit, ow rate

monitoring, overpressure, low pressure

Yellow

Holiday function active

∆T too high, night circulation, FL/RE interchanged, store maximum temperature exceeded

Red /

green

Manual mode: at least one relay HAND OFF

3.4 Menu structure

Adjustment values

DT O DT F DT S S SET S MAX SMAXS …

Menu level

BALAN

Adjustment level

SYS LOAD COL …

Status level

TCOL TCOL2 TSTB TSTT …

Balance values

h R1 h R2 MAXS1 MINS1 …

The menu structure of the controller consists of 2 levels: the status level and the menu level.

The status level consists of different display channels which indicate display values and messages.

The menu level consists of the balance values menu and several menu items each of which consists of sub-menus and adjustment channels. In order to activate or deactivate a function, it must be selected in the menu level. The display changes to the adjustment menu in which all adjustments required can be carried out.

Note

Some of the menu items depend on the selected system and the adjusted options. Therefore, they are only displayed if they are available.

Note

The abstract from the menu structure is for information on the structure of the controller menu and is therefore not complete.

3.5 Selecting menu points and adjusting values

During normal operation of the controller, the display shows the status level with the adjustment channels. If no button is pressed for 1 min, the display illumination goes out. If no button is pressed for further 3 min, the display indicates the status level.

Press any key to reactivate the display illumination. In order to scroll through the display channels, turn the Lightwheel

Accessing the adjustment level:

Î Press the right button (✓) for approx. 3 s.

The display changes to the adjustment level. All menus contain adjustment channels and are marked with PUSH below the menu item.

Î In order to access the desired menu, press the right button (✓)

Note

Only if the installer code is entered (see page 51), will the adjustment level be accessible.

Installation Indications, functions and options MessagesCommissioningOperation and function

4 System- Monitoring-Display

System-Monitoring- Display

The System-Monitoring-Display consists of 3 blocks: channel display, tool bar and system screen.

Channel display

The channel display consists of 2 lines. The upper display line is an alphanumeric 16-segment display. In this line, mainly channel names and menu items are displayed. In the lower 16-segment display, values are displayed.

Tool bar

The additional symbols in the tool bar indicate the current system state.

Selecting and adjusting options / functions

An option or function containing adjustment values are marked with PUSH.

Î In order to access the sub-menu of the option, select the option by turning the

Lightwheel

and press the right button (✓) .

Î In order to activate an option, select ON. In order to deactivate it, select OFF.

The adjustment channels are characterised by the indication Ⓢ.

Î Select the desired adjustment channel by turning the Lightwheel

Î Con rm your selection with the right button (✓) . Ⓢ starts flashing (ad-

justment mode).

Î Adjust the value by turning the Lightwheel

Î Con rm your selection with the right button (✓). Ⓢ permanently appears,

the adjustment has been saved.

BACK PUSH appears as the last display.

Î In order to get back to the menu selection, press the right button (✓).

If no button has been pressed within a couple of minutes, the adjustment is cancelled and the previous value is retained.

3.6 Resetting balance values

Heat quantity, operating hours of the relays as well as minimum and maximum temperatures can be set back to zero. In order to reset a value, proceed as follows:

Î Select the desired value and press the right button(✓). Ⓢ starts flashing. Î Turn the Lightwheel

anticlockwise.

The value is set back to 0.

Î Press the right button(✓).

The message DEL will be displayed.

Î Turn the Lightwheel

clockwise.

YES instead of NO will be displayed.

Î Con rm your selection with the right button (✓).

The value will be set back to zero and the symbol will be permanently displayed. In order to interrupt this process, press the left button (⟲).

InstallationIndications, functions and optionsMessages Commissioning Operation and function

4.1 System screen

The system selected is indicated in the System-Monitoring-Display. It consists of several system component symbols which are – depending on the current status of

the system – either  ashing, permanently shown or hidden.

Collectors with collector sensor

3-port valves

Only the  ow direction or

current switching position is indicated.

Store 1 and 2 with heat exchanger

Pump

Heating circuit

return preheating

Afterheating with burner symbol

Temperature sensor

4.2 Further indications

Smiley

If the controller operates faultlessly (normal operation), a smiley ☺ is displayed.

Fault indication

If the controller detects a malfunction, the control LED  ashes red and the symbols

of the warning triangle ⚠ and the wrench ☍ are additionally displayed.

Short text and ticker

Functions, options, measurement and balance values as well as messages are indicated as both short text and ticker. After the short text has been displayed, the corresponding long text will be indicated as a ticker from right to left.

Symbol Permanently shown Flashing

Status indications:

☼

Store maximum limitation active (store maximum temperature has been exceeded)

Collector cooling function active, system cooling or store cooling active

❄

Antifreeze option activated Collector temp. below minimum

temp., antifreeze function active

⚠

Collector emergency shutdown active

⚠ + ☛

Manual mode active

⚠ + ☼

Store emergency shutdown active

Ⓢ

Adjustment mode

⛁

Holiday function active

☺

Normal operation

Fault indication:

⚠ + ☍

Sensor fault

Installation Indications, functions and options MessagesCommissioningOperation and function

5 Status level / Measurement values

During normal operation of the controller, the display is in the status level, indicating the measurement values (depending on the system) shown in the table.

In addition to the display values, possible error messages are indicated in the status menu (see page 51).

Display Description (long text)

TCOL Temperature collector TCOL2 Temperature collector 2 TSTB Temperature store base TSTT Temperature store top TST2B Temperature store 2 base TSTTS Temperature heat exchange source TST2S Temperature heat exchange sink TAH Temperature afterheating TSFB Temperature solid fuel boiler TSTSF Temperature store - solid fuel boiler TSTRP Temperature store return preheating TRET Temperature heating circuit return S3 Temperature sensor 3 S4 Temperature sensor 4 n1 % Speed relay 1 n2 % Speed relay 2 L/h Flow rate sensor V40 TFHQM Heat quantity measurement ow temperature TRHQM Heat quantity measurement return temperature kWh Heat quantity in kWh MWh Heat quantity in MWh BLPR Blocking protection relay 1 BLPR2 Blocking protection relay 2 INIT Initialisation drainback FLLT Filling time drainback STAB Stabilisation drainback TDIS Disinfection temperature CDIS Countdown thermal disinfection DDIS Disinfection period SDIS Starting time delay TIME DAT E

6 Balance values

The balance value menu indicates the balance values.

Display Description

h R1 Operating hours relay 1 h R2 Operating hours relay 2 h R4 Operating hours relay 4 DAY S Operating days of the controller (cannot be set back to zero) MAXS1 Maximum temperature sensor 1 MINS1 Minimum temperature sensor 1 MAXS2 Maximum temperature sensor 2 MINS2 Minimum temperature sensor 2 MAXS3 Maximum temperature sensor 3 MINS3 Minimum temperature sensor 3 MAXS4 Maximum temperature sensor 4 MINS4 Minimum temperature sensor 4

InstallationIndications, functions and optionsMessages Commissioning Operation and function

7 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 all symbols are indicated in the display. The Lightwheel

 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, press the right button (✓) . Ⓢ starts flashing and the adjustment can be made. Con rm the adjustment with the right button (✓). Turn the Lightwheel

, the next channel will appear on the screen.

Adjustment mode  ashing

Operation

changing a value  ashing

✓

con rming a value not  ashing

to the next parameter

1. Language:

Î Adjust the desired menu language.

Commissioning

2. Time:

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

then the minutes.

3. Daylight savings time adjustment:

Î Activate or deactivate the automatic daylight

savings time adjustment.

4. Date:

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

month and then the day.

Installation Indications, functions and options MessagesCommissioningOperation and function

9. Loading store 2:

Î Switch on or off the “loading store 2” option (see

page 33).

Note

“Loading store 2” is only available if a 2-store system or store loading in layers has been previously selected in the sub-channel SYS.

Commissioning

5. System:

Î Adjust the desired system (see page 49).

6. Store set temperature:

Î Adjust the desired store set temperature. In

2-store systems, the adjustment has to be carried for S2SET aswell (see page 32).

7. Maximum store temperature:

Î Adjust the maximum store temperature. In 2-store

systems, the adjustment has to be carried out for

S2MAX aswell (see page 33).

8. Loading store 1:

Î Switch on or off the “loading store 1” option (see

page 33).

Note

“Loading store 1” is only available if a 2-store system or store loading in layers has been previously selected in the sub-channel SYS.

10. Relay control type:

Î Select the relay control type for REL. Carry out

this adjustment for REL2 as well, if necessary (see page 42).

11. Minimum speed:

Î Adjust the minimum speed MIN of the relay. Car-

ry out this adjustment for relay 2 as well, if necessary (see page 42).

Note

The minimum speed value will not be available if ONOF has been selected in the sub-channel REL (REL2)

InstallationIndications, functions and optionsMessages Commissioning Operation and function

12. Maximum speed:

Î Adjust the maximum speed MAX of the relay.

Carry out this adjustment for relay 2 as well, if necessary (see page 42).

Note

The maximum speed value will not be available if ONOF has been selected in the sub-channel REL (REL2).

Commissioning

Î Complete the commissioning menu by

pressing the right button (✓):

The controller is then 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 (see page 26).

Set the code to the customer code before handing over the controller to the customer (see page 51).

Installation Indications, functions and options MessagesCommissioningOperation and function

8 Indications, functions and options

Note

The values and adjustment channels as well as the adjustment ranges depend on the system selected, the functions and options as well as the user code entered and the system components connected to the controller.

An additional document including a list with all options and parameters can be downloaded at www.resol.com.

8.1 Status level

Display of blocking protection time

BLPR(2)

Blocking protection active

Display of drainback time periods

INIT

Initialisation active Indicates the time adjusted in tDTO, running backwards.

FLLT

Filling time active Indicates the time adjusted in tFLL, running backwards.

STAB

Stabilisation Indicates the time adjusted in tSTB, running backwards.

Display of collector temperatures

TCOL(2)

Collector temperature Display range: -40 … +260 °C

Displays the current collector temperature.

• TCOL : Collector temperature

• TCOL2 : Collector temperature 2 (2-collector system)

InstallationIndications, functions and optionsMessages Commissioning Operation and function

Display of store temperatures

TSTB, etc.

Store temperatures Display range: -40 … +260 °C

Displays the current store temperature.

• TSTB : Store temperature base

• TSTT : Store temperature top

in 2-store systems (only if available):

• TST2T : Temperature store 2 top

• TST2B : Temperature store 2 base

• TSTTS : Temperature heat exchange source

• TST2S : Temperature heat exchange sink

• TSTSF : Temperature store - solid fuel boiler

Display of temperatures at S3 and S4

S3, S4

Temperature sensors Display range: -40 … +260 °C

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

• S3 : Temperature sensor 3

• S4 : Temperature sensor 4

Note In systems with return preheating, S3 is used as the heat source sen-

sor TSTR.

Display of further temperatures

TSFB, etc.

Further measured temperatures Indication range: -40 … +260 °C

Indicates the current temperature at the corresponding sensor. The display of these temperatures depends on the system selected.

• TSFB : Temperature solid fuel boiler

• TRET : Temperature heating return

• TSTR : Temperature store return preheating

• TFHQM : Temperature  ow (HQM)

• TRHQM : Temperature return (HQM)

• TAH : Temperature afterheating

Display of  ow rate

Flow rate Indication range: 0 … 9999 l/h

Indicates the currently measured  ow rate. This value is used for calculating

the heat quantity supplied (V40).

Installation Indications, functions and options MessagesCommissioningOperation and function

Display of speed

1 %, 2 %

Current pump speed Indication range: 20 … 100 % (standard pump / HE pump)

Indicates the current speed of the corresponding pump.

Display of heat quantity

kW /MW

Heat quantity in kWh / MWh Indicates the heat quantity produced in the system. For this purpose, the heat

quantity measurement option has to be enabled. The  ow rate as well as the values of the reference sensors  ow and return are used for calculating the

heat quantity supplied. It is shown in kWh in the kWh channel and in MWh in the MWh channel. The overall heat quantity results from the sum of both values.

The accumulated heat quantity can be set back to zero (see page 20).

Indication of thermal disinfection

TDIS

Disinfection temperature Indication range: -40 … +260 °C

If the thermal disinfection option (OTDIS) is activated and the disinfection period is in progress, the disinfection temperature measured at the reference sensor is displayed in this channel.

CDIS

Countdown monitoring period Display range: 0 … 30:0 … 24 (dd:hh)

If the thermal disinfection option (OTDIS) is activated and the monitoring period is in progress, the remaining time of the monitoring period is displayed as CDIS (in hours and minutes), counting backwards.

SDIS

Starting time Display range: 0:00 … 24:00 (time)

If the thermal disinfection option (OTDIS) is activated and a starting delay

time has been adjusted, the delay time is displayed ( ashing) in this channel.

InstallationIndications, functions and optionsMessages Commissioning Operation and function

DDIS

Disinfection period Display range: 0:00 … 23:59 (hh:mm)

If the thermal disinfection option (OTDIS) is activated and the disinfection period is in progress, the remaining time of the heating period is displayed (in hours and minutes) in this channel, counting backwards.

Display of time

Time

Indicates the current clock time.

Display of date

DATE

Indicates the current date.

Installation Indications, functions and options MessagesCommissioningOperation and function

8.2 Menu overview

BALAN 1

BALANCE VALUES

LOAD 7

LOADING LOGIC

REL 13 RELAY

ADJUSTMENT

OHQM 19 HEAT QUANTITY

MEASUREMENT

LOAD 2 4 LOADING

STORE 2

HEATX 10

HEAT EXCHANGE

BLPR 16

BLOCKING

PROTECTION

LANG 22

LANGUAGE

SYS 2 SYSTEM SELECTION

COOL 8

COOLING

FUNCTIONS

H-DAY 14 HOLIDAY

FUNCTION

SENS 20 SENSORS

COL 5 COOL

AH 11

AFTERHEATING

OTDIS 17 THERMAL

DISINFECTION

VDI 23 FUNCTION

CONTROL VDI 2169

LOAD 3 LOADING

STORE

SFB 9 SOLID FUEL BOILER

MAN 15 MANUAL MODE

DATE 21 DAT E

COL 2 6 COLLECTOR 2

RPH 12 RETURN

PREHEATING

OPARR 18 PARALLEL RELAY

CODE 24 USER CODE

RESET 25

FACTORY SETTING

» P. 31

» P. 36

» P. 42

» P.46

» P. 31

» P. 39

» P. 43

» P. 47

» P. 32

» P. 40

» P. 44

»P. 48

» P. 32

» P. 41

» P. 44

» P. 48

» P. 34

» P. 41

» P. 45

» P. 49

» P. 34

» P. 42

» P. 45

» P. 50

Parameters shown in the following with a dashed line depend on options and are only indicated if they are available in the system selected.

InstallationIndications, functions and optionsMessages Commissioning Operation and function

BALAN 1

PUSH

hR 1 (2, 4)

Operating hours Relays 1, 2, 4

DAY S

Operating days

MAXS1(… 4)

Maximum temperature Sensors 1 … 4

MINS1(… 4)

Minimum temperature Sensors 1 … 4

Operating hours counter

R (1, 2, 4)

Operating hours counter The operating hours counter accumulates the solar operating hours of the relay

(h R1 / h R2 / h R4). Full hours are displayed. The accumulated operating hours can be set back to zero (see page 20).

Operating days

Display of operating days since commissioning or last reset. The operating days cannot be set back to zero.

Minimum and maximum temperatures

MAXS1(2, 3, 4)

Maximum temperatures at S1 … S4

MINS1(2, 3, 4)

Minimum temperatures at S1 … S4 Indication of the minimum and maximum temperatures at S1…S4. The temperature indication can be set back to zero (see page 20).

System

Selecting the system

Each system has pre-programmed options and adjustments which can be activated

or changed respectively if necessary. Select the system  rst (see page 7).

Balance values

SYS 2

PUSH

SYS

Basic system Adjustment range: 1 … 10 Factory setting: 1

BACK

PUSH

Adjustment level

Installation Indications, functions and options MessagesCommissioningOperation and function

3/4

∆T control

The controller works as a standard differential controller. If the temperature reaches or exceeds the switch-on temperature difference, the pump switches on. When the temperature difference reaches or falls below the adjusted switch-off temperature difference, the respective relay switches off.

Note

The switch-on temperature difference must be 0.5 K higher than the switch-off temperature difference. The set temperature difference must be at least 0.5 K higher than the switch-on temperature difference.

Note

In systems with 2 stores or store loading in layers, 2 separate menus (LOAD and LOAD 2) will be displayed.

Speed control

If the temperature difference 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 reaches the adjusted nominal value, the pump speed increases by one step (10 %). The response of the controller can be adapted via the parameter Rise. Each time the difference increases by the adjustable rise value, the pump speed increases by 10 % until the maximum pump speed of 100% is reached. If the temperature difference decreases by the adjustable rise value, pump speed will be decreased by one step.

Note To enable speed control, the corresponding relay has to be set to AU TO, MIN, MAX or ADAP (MAN channel) and relay control to PULS, PSOL or PHEA (adjustment channel REL).

Store set temperature The store set temperature can be adjusted in the S(2)SET channel.

Note

For more information about relay control, see page 42.

LOAD (2) 3/4

PUSH

DT(2) O

Switch-on temperature diff. Adjustment range: 1.0 … 50.0 K in steps of 0.5 K Factory setting: 6.0 K

DT(2) F

Switch-off temperature diff. Adjustment range:

0.5 … 49.5 K in steps of 0.5 K Factory setting: 4.0 K

DT(2)S

Set temperature difference Adjustment range:

1.5 … 50.0 K in steps of 0.5 K Factory setting: 10.0 K

S(2)SET

Store set temperature Adjustment range: 4 … 95 °C Factory setting: 45 °C

a cb

InstallationIndications, functions and optionsMessages Commissioning Operation and function

3/4

Priority logic

Priority logic can be used in 2-store systems or systems with store loading in layers only and determines how the heat is divided between the stores.

PRIO: Store 1 / store base PRIO2: Store 2 / store top

The store which has been adjusted to 1 is considered as the priority store. If both stores have been adjusted to an identical value, they will be loaded in parallel.

Store maximum temperature and Sensor store maximum temperature

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

The sensor for store maximum limitation can be selected. The maximum limitation always refers to the sensor selected. The switch-on hysteresis is selectable.

Note

In systems with 2 stores or store loading in layers, 2 separate menus (LOAD and LOAD 2) will be displayed.

Loading store

In systems with 2 stores or store loading in layers, one of the two stores or the store zone respectively can be switched off with the parameter LST(2).

If LST or LST2 is adjusted to OFF, the system runs like a 1-store system. The representation in the display remains the same.

PRIO (2)

Priority logic Selection: 1, 2 Factory setting: 1

S(2)MAX

Store maximum temperature Adjustment range: 4 … 95 °C in steps of 1 °C Factory setting: 60 °C

S(2)MAXS

Sensor store maximum temp. Adjustment range: 1-store system: S2, S3 2-store system: S4, S5 Factory setting: 1-store system S2 2-store system: S4

LST (2)

Loading store 1, 2 Selection: ON / OFF Factory setting: ON

RIS (2)

Rise Adjustment range: 1 … 20 K in steps of 1 K Factory setting: 2 K

a c

BACK

PUSH

3/4

5/6

Installation Indications, functions and options MessagesCommissioningOperation and function

5/6

Collector emergency shutdown

When the collector temperature exceeds the adjusted collector emergency temperature, the solar pump (R1 / R2) switches off in order to protect the system components against overheating (collector emergency shutdown). If the maximum collector temperature is exceeded, ⚠ is displayed (ashing).

Note

If the drainback option is activated, the adjustment range of the collector emergency temperature is 80 … 95°C. The factory setting then is 95 °C.

Note In systems with east- / west collectors, 2 separate menus (COL and COL 2) will be displayed.

WARNING!

Risk of injury! Risk of system damage by pressure surge!

If water is used as the heat transfer uid in pressureless systems,

water will boil at 100 °C.

Î In pressureless systems with water as the heat transfer

uid, do not set the collector limit temperature higher

than 95 °C.

Collector cooling

The collector cooling function keeps the collector rise temperature within the operating range by heating the store. If the store temperature reaches 95 °C the function will switch off for safety reasons. When the store temperature exceeds the adjusted maximum store temperature, the solar system switches off. If the collector temperature increases to the adjusted maximum collector temperature, the solar pump is activated until the collector temperature falls below the maximum collector temperature. The store temperature may then exceed the maximum temperature, but only up to 95°C (emergency shutdown of the store).

If the collector cooling is active, ☼ is displayed (ashing).

Note

This function is only available if the system cooling function and the heat dump function are not activated.

Note

In systems with east- / west collectors, 2 separate menus (COL and COL 2) will be displayed.

CMAX

Collector maximum temp. Adjustment range: 70 … 160 °C in steps of 1 °C Factory setting: 110 °C Switch-on hysteresis: -5K

OCCO

Selection: OFF / ON Factory setting: OFF

OFF ON

OCCO

PUSH

COL (2) 5/6

PUSH

CEM( 2)

Collector emergency temperature Adjustment range: 80 … 200 °C in steps of 1 °C Factory setting: 130 °C Switch-on hysteresis: -10 K

a c

BACK

PUSH

5/6

InstallationIndications, functions and optionsMessages Commissioning Operation and function

5/6

Collector minimum temperature

The minimum collector temperature is the minimum switch-on temperature which must be exceeded for the solar pump (R1 / R2) to switch on. If the collector temperature falls below the adjusted minimum temperature, ❄ is displayed (ashing).

Note

In systems with east- / west collectors, 2 separate menus (COL and COL 2) will be displayed.

Tube collector function

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.

2-collector systems

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

collector eld.

In 2-collector systems, the tube collector function will affect the inactive collector

eld only. The solar pump of the active collector eld will remain switched on until the switch-off conditions are fullled.

Note

If the drainback option is activated, the tube collector function will not be available.

OTCO (2)

Tube collector function Selection: OFF / ON Factory setting: OFF

TCST (2)

Starting time Adjustment range: 00:00 … 23:00 Factory setting: 07:00

TCRU (2)

Runtime Adjustment range: 30 … 600 s in steps of 5 s Factory setting: 30 s

TCEN (2)

Ending time Adjustment range: 00:30 … 23:30 in steps of 00:30 Factory setting: 19:00

TCIN (2)

Standstill interval Adjustment range: 5 … 60 min in steps of 00:01 Factory setting: 30 min

OTCO

PUSH

CMIN (2)

Collector minimum temp. Adjustment range: 10 … 90 °C in steps of 1 °C Factory setting: 10 °C

OCMI (2)

Collector minimum temp.

Selection: OFF / ON Factory setting: OFF

OFF

OCMN

PUSH

BACK

PUSH

BACK

PUSH

5/6

Installation Indications, functions and options MessagesCommissioningOperation and function

5/6

Antifreeze function

The antifreeze function activates the loading circuit between the collector and the store when the temperature falls below the adjusted temperature CFR O. This will protect the uid against freezing or coagulating. If CFR F is exceeded, the solar pump will be switched off again.

The antifreeze function will be suppressed if the store temperature of the selected store falls below 5 °C. In 2-store systems, the function then switches to the second store or, in the case of store loading in layers, to the upper store zone. If the temperature of the second store (or of the upper store zone respectively) also falls below 5 °C, the system will be switched off.

Note

In systems with east- / west collectors, 2 separate menus (COL and COL 2) will be displayed.

Note

Since this function uses the limited heat quantity of the store, the antifreeze function should be used in regions with few days of temperatures around the freezing point.

OCFR (2)

Antifreeze function Selection: OFF / ON Factory setting: OFF

CFR(2)O

Antifreeze temperature on Adjustment range:

-40 … +8 °C Factory setting: 4 °C

CFR(2)F

Antifreeze temperature off Adjustment range:

-39 … +9 °C Factory setting: 5 °C

OCFR

PUSH

OFF ON

BACK

PUSH

BACK

PUSH

Drainback option

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 tDTO is used for adjusting the time period during which the

switch-on condition DT O must be permanently fullled.

Filling time

The lling time can be adjusted using the parameter tFLL. During this period, the pump runs at 100 % speed.

Stabilisation The parameter tSTB is used for adjusting the time period during which the switch-

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

ODB

Drainback option Selection: OFF / ON Factory setting: OFF

LOAD 7

PUSH

ODB

PUSH

tDTO

Time period - switch-on condition Adjustment range: 1 … 100 s in steps of 1 s Factory setting: 60 s

tSTB / Stabilisation Adjustment range: 1.0 … 15.0 min in steps of 0.5 min Factory setting: 2.0 min

tFLL / Filling time Adjustment range: 1.0 … 30.0 min in steps of 0.5 min Factory setting: 5.0 min

OFF ON

a b

d e

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InstallationIndications, functions and optionsMessages Commissioning Operation and function

Note

If the drainback option is activated, the cooling functions and the antifreeze function will not be available. The H-DAY (holiday function) menu will also not be available and cannot be selected by means of the microbutton ⛁.

Note

The drainback option is only available in systems with 1 store and 1 collector

eld and if no cooling function is activated.

Note If the drainback function ODB is activated, the factory settings of the parameters DT O, DT F und DT S will be adapted to values suiting drainback systems: DT O = 10 K DT F = 4 K DT S = 15 K Additionally, the adjustment range and the factory setting of the collector emergency shutdown CEM will change: Adjustment range: 80 … 120 °C; Factory setting: 95 °C Adjustments previously made in these channels will be overridden and have to be entered again if the drainback option is deactivated later on.

Note

If the holiday function is activated, the drainback option will not be available.

Booster function

This function is used for additionally switching on a second pump when lling the system. When solar loading starts, R2 is energised in parallel to R1. After the lling

time has elapsed, R2 switches off.

Note The booster function is available in system 1 only.

Successive loading option

Successive loading means that the priority store will be loaded up to its maximum temperature. If it is reached, the second store will be loaded. If the temperature of

the rst store falls below the store set temperature, the second store will no longer

be loaded, regardless of whether the switch-on conditions of the priority store or

of the subordinate store are fullled or not.

If both store have been loaded to their set temperature, the same process described above will take place until the stores heave reached their maximum temperature.

OBST

Booster function Selection: OFF / ON Factory setting: OFF

ccd

d e

BACK

PUSH

OSuC

Successive loading option Selection: OFF / ON Factory setting: OFF

OSE

PUSH

DTSE

Temperature diff. Spreaded loading Adj

ustment range: 20 … 90 K

Factory setting: 40 K

OSE

Spreaded loading option Selection: OFF / ON Factory setting: OFF

OFF ON

BACK

PUSH

Installation Indications, functions and options MessagesCommissioningOperation and function

Spreaded loading option

In 2-store systems with 2 pumps, a spreaded loading function can be activated: As soon as the adjustable temperature difference DTSE between the collector and the priority store is reached, the second store will be loaded in parallel unless it is blocked. If the temperature difference falls by 2 K below DTSE, the pump is switched off. The collector temperature has to be higher than the store temperature.

Loading logic

In systems with 2 stores or store loading in layers, store sequence control can be adjusted. In 1-store systems, only the menu item PDELA will be available.

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. If it increases by 2 K, the break time timer starts again to allow the collector to gain more heat. If the collector

temperature 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 set temperature, store sequence control will not be carried out. The minimum runtime of each loading process is 3 min. In systems with 2 stores or store loading in layers, all stores / store zones will be loaded to their set temperature (according to their priority and store sequence control). Only when all stores / store zones have exceeded their set temperature will they be loaded up to their maximum temperatures, again according to their priority and store sequence control. If store sequence control is active and the system switches to load the priority store, the parameter Loading break also acts as a stabilisation time, during which the switch off temperature difference will be ignored.

Overrun

By means of this function, store loading continues after the temperature difference between the collector and the store has fallen below the switch-off difference. It

switches off if the temperature difference between the allocated ow and return

sensors falls below the switch-off difference DT(2)F.

tLB

Loading break time Adjustment range: 1 … 30 min Factory setting: 2 min

PDELA

Pump delay Selection: ON / OFF

Factory setting: OFF

tRUN

Circulation time Adjustment range: 1 … 30 min Factory setting: 15 min

PSPEE

Pause speed Selection: ON / OFF Factory setting: OFF

a b c

BACK

PUSH

InstallationIndications, functions and optionsMessages Commissioning Operation and function

Cooling functions

Different cooling functions can be activated: system cooling, store cooling and heat dump.

Note

If the temperature at the store sensor reaches 95 °C, all cooling functions will be blocked. The switch-on hysteresis is -5 K.

Note

If one of the cooling functions or the antifreeze function is activated, the drainback option will not be available.

System cooling

The system cooling function aims to keep the solar system operational for a longer time. The function overrides the maximum store temperature to provide thermal

relief of the collector eld and the heat transfer uid on hot days.

If the store temperature is higher than the adjusted maximum store temperature and the switch-on temperature difference DTO is reached, the solar pump remains switched on or will be switched on. Solar loading is continued until either the temperature difference falls below the adjusted value DTF or the collector emergency shutdown temperature is reached.

In 2-store systems the sequence of the stores can be adjusted. If the system cooling is active, ☼ is displayed (ashing).

Note

This function will only be available if the collector cooling function, the heat dump function, and the drainback option are not activated.

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.

If the adjusted maximum store temperature is exceeded and the collector temperature falls below the store temperature, the system will be reactivated in order to cool down the store.

DTCO and DTCF are used as the reference temperature differences.

Heat dump

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.

The heat dump function can either use an additional pump or valve (OTPUM

ON = pump logic, OTPUM OFF = valve logic).

DTCO

Switch-on temperature diff. Adjustment range: 1.0 … 30.0 K Factory setting: 20.0 K

DTCF

Switch-off temperature diff. Adjustment range: 0.5 … 29.5 K Factory setting: 15.0 K

OSTC

Option store cooling Adjustment range: OFF / ON Factory setting: OFF

OSYC

Option system cooling Adjustment range: OFF / ON Factory setting: OFF

COOL 8

PUSH

d e f

OHDP

Heat dump option Selection: OFF / ON Factory setting: OFF

OFF ON

OHDP

PUSH

BACK

PUSH

Installation Indications, functions and options MessagesCommissioningOperation and function

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

Variant valve:

The allocated relay will be energised in parallel to the solar pump, if the collector temperature reaches the adjusted collector overtemperature. If the collector temperature falls by 5 K below the adjusted collector overtemperature, the relay will be switched off.

If the store temperature exceeds its maximum temperature by more than 5 K while the heat dump function is being active, the function will be deactivated. If the temperature falls below this value by the hysteresis maximum store temperature (HYSP(2) in BEL(2)), the heat dump function is will be available again.

Note

In system 1, the adjustable value OTCL is blocked against the collector emergency temperature by 10 K. This function will only be available if the collector cooling function, the heat dump function, and the drainback option are deactivated.

d e f

OTCL

Overtemperature collector Adjustment range: 40 … 160 °C Factory setting: 110 °C

OTPUM

Pump or valve logic Selection: OFF / ON Factory setting: OFF

SFB 9

PUSH

DTSFO

Switch-on temperature diff. Adjustment range:

1.0 … 50.0 K Factory setting: 6.0 K

DTSFF

Switch-on temperature diff. Adjustment range:

0.5 … 49.5 K Factory setting: 4.0 K

DTSFS

Set temperature diff. Adjustment range:

1.5 … 50.0 K Factory setting: 10.0 K

MNSFO

Minimum limitation Adjustment range:

0.5 … 89.5 °C Factory setting: 60.0 °C

MXSFS

Maximum limitation Adjustment range:

0.5 … 95.0 °C Factory setting: 60.0 °C

Solid fuel boiler

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

The relay (system-dependent) is energised when all switch-on conditions are ful-

lled:

• the temperature difference between the sensors heat source and heat sink has exceeded the switch-on temperature difference.

• the temperature at the solid fuel boiler sensor has exceeded the minimum 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 increase or decrease by the rise value, the pump speed will be adjusted by 10 %.

The switch-on hysteresis is -5 K.

BACK

PUSH

BACK

PUSH

InstallationIndications, functions and optionsMessages Commissioning Operation and function

HEATX 10

PUSH

DTHXO

Switch-on temperature diff. Adjustment range:

1.0 … 50.0 K Factory setting: 6.0 K

DTHXF

Switch-on temperature diff. Adjustment range:

0.5 … 49.5 K Factory setting: 4.0 K

DTHXS

Set temperature diff. Adjustment range:

1.5 … 50.0 K Factory setting: 10.0 K

MXHXO

Maximum limitation Adjustment range:

0.5 … 95.0 °C Factory setting: 60.0 °C

RISHX

Rise Adjustment range: 1 … 20 K Factory setting: 2 K

MNHXO

Minimum limitation Adjustment range:

0.5 … 89.5 °C Factory setting: 60.0 °C

Heat exchange function

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

The relay (system-dependent) is energised when all switch-on conditions are ful-

lled:

• the temperature difference between the sensors heat source and heat sink 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 increase or decrease by the rise value, the pump speed will be adjusted by 10 %.

BACK

PUSH

BACK

PUSH

AH 11

PUSH

AH O

Thermostat switch-on temp. Adjustment range:

0.5 … 95.0 °C in steps of 0.5 °C Factory setting: 40.0 °C

AH F

Thermostat switch-off temp. Adjustment range:

0.5 … 94.5 °C in steps of 0.5 °C Factory setting: 45.0 °C

t1O

Switch-on time 1 Adjustment range: 00:00 … 23:45 Factory setting: 06:00 in steps of 15 min

t2 (3) O

Switch-on time 2 (3) Adjustment range: 00:00 … 23:45 Factory setting: 00:00

t1F

Switch-off time 1 Adjustment range: 00:00 … 23:45 Factory setting: 22:00

t2 (3) F

Switch-off time 2 (3) Adjustment range: 00:00 … 23:45 Factory setting: 00:00

Afterheating / Thermostat function

The thermostat function works independently from the solar operation and can e. g. be used for using surplus energy or for afterheating.

• AH O < AH F thermostat function for afterheating

• AH O > AH F thermostat function for using surplus energy

In order to block the thermostat function for a certain period, there are 3 time frames t1 … t3. The switch-on and switch-off times can be adjusted in steps of 15 min. If the switch-on and the switch-off times are identical, the time frame is inactive.

If the thermostat function is supposed to run from 06:00 a.m. and 09:00 a.m. only, adjust t1 O to 06:00 a.m. and t1 F to 09:00 a.m.

The rst time frame is factory set from 06:00 to 22:00.

If all time frames are set to 00:00, the thermostat function is solely temperature dependent.

Installation Indications, functions and options MessagesCommissioningOperation and function

RPH 12

PUSH

DTRPO

Switch-on temperature diff. Adjustment range:

1.0 … 50.0 K Factory setting: 6.0 K

RPH

Return preheating Selection: OFF / ON Factory setting: OFF

DTRPF

Switch-on temperature diff. Adjustment range:

0.5 … 49.5 K Factory setting: 4.0 K

MNRPH

Minimum limitation Adjustment range:

0.5 … 89.5 °C Factory setting: 30.0 °C

Return preheating

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

The relay (system-dependent) is energised when both switch-on conditions are fullled:

• the temperature difference between the sensors store return and heating circuit return has exceeded the switch-on temperature difference.

• the temperature at the heating circuit return has exceeded the minimum temperature.

The switch-on hysteresis is -5 K.

OFF

BACK

PUSH

REL (2) / Relay control

Selectionl: ONOF, Puls, PSOL, PHEA, ADAP Factory setting: PSOL

REL 13

PUSH

MAX (2) / Maximum speed

Adjustment range: 20 … 100 % Factory setting: 100 %

MIN (2) / Minimum speed Adjustment range: 20 … 100 % Factory setting: 20 %

Relay control

With this parameter, the relay control type can be adjusted. The following types can be selected:

Adjustment for standard pump without speed control

• ONOF : Pump on / pump off

Adjustment for standard pump with speed control

• PULS : Burst control via semiconductor relay

Adjustment for high-efciency pump (HE pump)

• PSOL : PWM prole solar pump

• PHEA : PWM prole heating pump

Note

For more information about connecting HE pumps, see page 18.

Minimum speed

In the adjustment channel MIN (2) a relative minimum speed for connected pumps can be allocated to the outputs R1 and R2.

Note

When loads which are not speed-controlled (e. g. valves) are used, the pump speed value of the corresponding relay must be set to 100 % or the control type must be set to ONOF in order to deactivate pump speed control.

Maximum speed

In the adjustment channel MAX (2) a relative minimum speed for connected pumps can be allocated to the outputs R1 and R2.

Note

Relay allocation for PWM outputs:

PWM A - Relay 1 PWM B - Relay 2

ONOF Puls, PSOL,

PHEA

BACK

PUSH

InstallationIndications, functions and optionsMessages Commissioning Operation and function

Holiday function

The holiday function is used for operating the system when no water consumption 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 will the adjustments described in the following become active.

3 cooling functions are available: system cooling, store cooling and store heat dump.

The system cooling function aims to keep the solar system operational for a longer time. The function overrides the maximum store temperature to provide thermal

relief of the collector eld and the heat transfer uid on hot days.

The system cooling option can be activated with the parameter OSYC. The function uses the adjustable switch-on and switch-off temperature differences DTO and DTF from the LOAD1(2) menu.

The store cooling option is activated by default and can be deactivated with the parameter OSTC. Store cooling starts when the store temperature exceeds the collector temperature by the adjustable value DTCO. It switches off if the store temperature reaches THOL or if the temperature difference falls below DTCF. The parameter THOL is used for adjusting the temperature for store 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 OHDPS. The function uses the adjustable switch-on and switch-off temperature differences DTO and DTF. If temperature measured at sensor 3 reaches the switch-on temperature, relay 2 will be energised until the temperature falls below the switch-off value.

The parameter DAY S 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 H-DAY menu. The days will be counted backwards at 00:00. If the value is set to 0, the function is deactivated.

Note The OHDPS option is available in system 1 only.

Note

The parameter DAY S can be accessed via the microbutton ⛁ only (see page 18).

H-DAY 14

PUSH

OHDPS

PUSH

OHDPS

Store heat dump Selection: OFF / ON Factory setting: OFF

OTSPO

Overtemperature Store on Selection: 5 … 95 °C Factory setting: 65 °C

OTSPF

Overtemperature Store off Selection: 4 … 94 °C Factory setting: 45 °C

BACK

PUSH

OFF ON

DTCO

Switch-on temperature diff. Adjustment range: 1.0 … 30.0 K Factory setting: 20.0 K

DTCF

Switch-off temperature diff. Adjustment range: 0.5 … 29.5 K Factory setting: 15.0 K

THOL

Temp. store cooling holiday Adjustment range: 4 … 95 °C Factory setting: 45 °C

OSTC

Option store cooling Adjustment range: OFF / ON Factory setting: ON

OSYC

Option system cooling Adjustment range: OFF / ON Factory setting: OFF

BACK

PUSH

Installation Indications, functions and options MessagesCommissioningOperation and function

BACK

PUSH

BACK

PUSH

Manual mode

For control and service work, the operating mode of the relays can be manually adjusted. For this purpose, select the adjustment channel MAN1(2, 4) (for R1, 2, 4) in which the following adjustments can be made:

Operating mode

AUTO : relay in automatic mode OFF : relay is switched off MIN : relay is switched with adjusted minimum speed (not if REL = ONOF) MAX : relay is switched with adjusted maximum speed (not if REL = ONOF)

Note

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

Note

For information about the control LED in the Lightwheel® see page 19.

MAN 15

PUSH

BLPR 16

PUSH

MAN1 (2)

Adjustment range: AUTO, ON, OFF, MIN, MAX Factory setting: AUTO

BLPR

Adjustment range: ON, OFF Factory setting: OFF

MAN4

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

Blocking protection

In order to protect the pumps against blocking after standstill, the controller is equipped with a blocking protection function. This function switches on the relays one after another every day at 12:00 a.m. for 10 s at 100 %.

Note

The adjustments described in this chapter are independent of those in the

COOL menu, which are inactive during a holiday.

Note

When the drainback option is activated, the holiday function will not be available and cannot be selected by means of the microbutton ⛁.

Note

If the holiday function is activated, the drainback option will not be available.

InstallationIndications, functions and optionsMessages Commissioning Operation and function

17 17

Thermal disinfection

This function helps to contain the spread of Legionella in DHW stores by systematically activating the afterheating.

R2 is the reference relay, S3 is the reference sensor. For thermal disinfection, the temperature at the reference sensor has to be monitored. This protection is ensured when, during the monitoring period, the disinfection temperature is continuously exceeded for the entire disinfection period.

The monitoring period starts as soon as the temperature at the reference sensor falls below the disinfection temperature. When the monitoring period ends, R2 and R4 activate the circulating pump and the afterheating. The disinfection period starts, if the temperature at the reference 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.

Starting time delay

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.

Note If the thermal disinfection option is activated, the display channels TDIS,

CDIS, SDIS and DDIS will be displayed.

OTDIS 17

PUSH

PDIS / Monitoring operiod

Adjustment range: 0 … 30:0 … 24 h (dd:hh) Factory setting: 01:00

OTDIS

Thermal disinfection option Adjustment range: OFF / ON Factory setting: OFF

SDIS / Starting time delay Adjustment range: 00:00 … 23:00 Factory setting: 18:00 (full hours only)

DDIS / Disinfection period Adjustment range: 00:00 … 23:59 Factory setting: 01:00

TDIS / Disinfection temperature Adjustment range: 0 … 95 °C in steps of 1 °C Factory setting: 60 °C

OSDIS / Starting delay option Selection: ON / OFF Factory setting: OFF

OFF

BACK

PUSH

OPARR 18

PUSH

OPARR

Parallel relay option Selection: OFF / ON Factory setting: OFF

INVER / Inversion Selection: OFF / ON Factory setting: OFF

BACK

PUSH

Parallel relay

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

If solar loading takes place or if a solar function is active, the relay selected will be energised. The parallel relay can also be energised inversely.

Note If R1 is in the manual mode, the selected parallel relay will not be energised.

Installation Indications, functions and options MessagesCommissioningOperation and function

OHQM 19

PUSH

FMAX

Flow rate in l/min Adjustment range: 0.5 … 100.0 in steps of 0.1 Factory setting: 6.0

MEDT

Heat transfer uid Adjustment range: 0 … 3 Factory setting: 3

SFHQM

Flow sensor Adjustment range: 1, 3, 4 Factory setting: 1 / 3

MED%

Antifreeze concentration in vol. % (MED% will not be displayed when MEDT 0 or 3 is used) Adjustment range: 20 … 70 % in steps of in 1 % Factory setting: 45 %

SRHQM

Return sensor Adjustment range: 2, 3, 4 Factory setting: 2 / 4

FTYPE

Flow rate detection type: Selection: 1, 2 Factory setting: 1

OHQM

Heat quantity measurement option Adjustment range: OFF / ON Factory setting: OFF

Heat quantity measurement

The heat quantity measurement can be carried out in 2 different ways: without V40

owmeter or with V40 owmeter

Note The most precise heat quantity measurement is achieved by using sensors

in the ow and return pipes as well as a owmeter.

In 2-collector systems, heat quantity measurement can only be carried out

with sensors installed in the common ow and return pipes.

Flow sensor

V40 /

owmeter

Return sensor

Example of ow and return sensor positions for heat quantity measurement.

Î Enable the heat quantity measurement option in the channel OHQM. Î Select the type of ow rate detection in the channel FTYPE.

Flow rate detection type:

1 : Fixed ow rate value (owmeter)

2 : V40

Note

If the ow rate detection type V40 has been adjusted,the impulse rate of

the sensor must be adjusted in the SENS menu (see page 47).

Note

If a V40 is used as the ow rate sensor (ow rate detection type 2) and is then deactivated in the SENS menu, the ow rate detection type will be set to 1 (owmeter) and heat quantity measurement will be deactivated.

OFF ON

BACK

PUSH

InstallationIndications, functions and optionsMessages Commissioning Operation and function

Heat quantity measurement with xed ow rate value

The heat quantity measurement calculation (estimation) uses the difference be-

tween the ow and return temperatures and the entered ow rate (at 100 % pump

speed).

Î Adjust 1 in the channel FTYPE. Î Read the ow rate (l/min) and adjust it in the FMAX channel. Î Adjust the antifreeze type and concentration of the heat transfer uid in the

channels MEDT and MED%.

Note Heat quantity measurement is not possible in systems with 2 solar pumps.

Antifreeze type:

0 : Water 1 : Propylene glycol 2 : Ethylene glycol 3 : Tyfocor

LS / G-LS

Heat quantity measurement with V40 owmeter:

The heat quantity measurement uses the difference between the ow and return temperatures and the ow rate transmitted by the owmeter.

Î Adjust 2 in the channel FTYPE. Î Adjust the antifreeze type and concentration of the heat transfer uid in the

channels MEDT and MED%.

HQM sensors

The ow sensor as well as the return sensor can be selected for heat quatity

measurement.

Î In the channel SFHQM select the ow sensor. Î In the channel SRHQM select the return sensor.

SENS 20

PUSH

SEN 1 (…4) / Sensor type

Sensortyp Selection: Pt1000, KTY, Pt500 Factory setting: Pt1000

VIMP

Impulse rate of the V40 Adjustment range: OFF,

0.5 … 100.0 l/imp Factory setting: OFF

Temperature sensors

The sensor type can be selected for the sensor inputs S1 to S4. The impulse rate can be adjusted for the sensor input V40.

OFF V40

BACK

PUSH

Installation Indications, functions and options MessagesCommissioningOperation and function

DATE 21

PUSH

TIME / time

Adjustment range: 00:00 … 23:59 Factory setting: 12:00

ADST

Automatic daylight savings time adjustment Selection: ON / OFF Factory setting: ON

MM / Month Adjustment range: 01 … 12 Factory setting: 03

YYYY / Year Adjustment range: 2010 … 2099 Factory setting: 2010

DD / Day Adjustment range: 01 … 31 Factory setting: 15

Time and date

The controller is equipped with a real time clock required e. g. for the thermostat function.

In the display, the lower line indicates the day followed by the month.

Language

In this adjustment channel the menu language can be chosen.

• DE : German

• EN : English

• FR : French

• ES : Spanish

• IT : Italian

• NL : Dutch

LANG 22

PUSH

LANG

Language Selection: DE, EN, FR, ES, IT, NL Factory setting: DE

InstallationIndications, functions and optionsMessages Commissioning Operation and function

VDI 23

PUSH

NIGHT

Night circulation monitoring option Selection: ON / OFF Factory setting: OFF

FL / RE

FL / RE interchange monitoring option Selection: ON / OFF Factory setting: OFF

∆T HI

Option ∆T too high Selection: ON / OFF Factory setting: OFF

Function control

∆T monitoring

This function is used for monitoring the temperature difference. The message ∆T too high is shown, if solar loading has been carried out for a period of 20 min 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

• blocked system components

• circulation problems in the collector

• air inside the pipework

• 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 the following condition 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 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 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. An error message will appear, if the plausibility criteria have not been met 5 times in a row.

a b

Installation Indications, functions and options MessagesCommissioningOperation and function

ST1(2)

Maximum store temperature monitoring store 1, 2 Selection: ON / OFF Factory setting: ON

ST1(2)MX

Maximum store temperature exceedance counter

STMAX

Maximum store temperature monitoring option Selection: ON / OFF Factory setting: OFF

STMAX

PUSH

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.

The channels ST1, ST2 can be used for selecting the stores to be monitored. The number of exceedances is displayed in the ST(2)MX channels. A possible cause for an unwanted exceedance of the maximum store temperature is a defective valve.

Note Only if the installer code is entered (see page 51), will the option be availabe.

OFF ON

a b c

BACK

PUSH

BACK

PUSH

CODE

The user code can be entered in the CODE menu (see page 51).

Reset

By means of the reset function, all adjustments can be set back to the factory settings. To do so, the installer code must be entered (see page 51).

RESET 25

PUSH

CODE 24

PUSH

InstallationIndications, functions and optionsMessages Commissioning Operation and function

Code

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 CODE.

The display changes to the status level. The short menu shown will then be available in the adjustment level. The short menu suits the selected system.

Î In order to authorise access to the installer level, enter 0262 in the menu item

CODE.

Short menu

Channel Factory setting Adjustment range Designation

TIME 12:00 00:00 … 23:59 Time

DT O 6.0 K 1.0 … 50.0 K Switch-on temperature difference store

DT F 4.0 K 0.5 … 49.5 K Switch-off temperature difference store

S SET 45 °C 5.0 … 95.0 °C Store set temperature

S MAX 60 °C 4 … 95 °C Store maximum limitation

LST ON ON / OFF Loading store on

DT2O 6.0 K 1.0 … 50.0 K Switch-on temperature difference store 2

DT2F 4.0 K 0.5 … 49.5 K Switch-off temperature difference store 2

S2SET 45 °C 5.0 … 95.0 °C Set store temperature store 2

S2MAX 60 °C 4 … 95 K Store maximum limitation store 2

LST2 ON ON / OFF Loading store 2 on

CODE 0000 0000 / 0262 User code

In the case of an error, the control LED starts ashing red and a message is indicated

in the status display. A warning triangle is additionally indicated. If more than one error or fault condition has occurred, only the one with the highest priority will be displayed as a message in the status display.

Error code display

Plain text display Monitoring function Cause

0001 !LINE BREAK SENSOR X! Sensor line break Sensor line broken 0002 !SHORT CIRCUIT SENSOR X! Sensor short circuit Sensor line short-circuited 0011 !∆T TOO HIGH! ∆T too high Collector 50 K > than store to be loaded 0021 !NIGHT CIRCULATION! Night circulation Betw. 11 p.m. and 5 a.m. col. temp. > 40 °C 0031 !FL/RE INTERCHANGED! FL/RL interchanged Col. temp. does not rise after switching on

0061 !DATA MEMORY DEFECTIVE!

Storing and changing adjustments not possible

0081 STORE MAX EXCEEDED Maximum store temperature St. max has been exceeded

After the error has been removed and acknowledged, the error message disappears.

Î In order to acknowledge an error message, select the message and press the left button (

⟲) for 2 s.

In the case of a sensor error, the system switches off, and a message appears on the display. Additionally, a corresponding value for the error type assumed is indicated.

9 User code and short menu – Adjustment values

10 Messages

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 tempera-

ture 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” func-

tion control.

Installation Indications, functions and options MessagesCommissioningOperation and function

11 Troubleshooting

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

Lightwheel® or display are permanently off

Press the right button ✓. Display illuminated?

no yes

Controller has been in

standby, everything o.k.

Check the supply line and recon-

nect it.

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 power supply of the controller. Is it disconnected?

no yes

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

°C °F Ω

Pt500ΩPt1000

KTY

°C °F Ω

Pt500ΩPt1000

KTY

-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

Control LED in the Lightwheel® is ashing red. The symbol ☍ is indicated on the display and the symbol ⚠ is ashing.

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

- 88.8888,8

Cable is broken.

Check the cable.

Short circuit.

Check the cable.

Fuse

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?

no yes

Is the collector circuit blocked at

the dirt trap?

yes

Clean dirt trap

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

Temperature difference at the

controller too small?

no yes

Wrong position of collector

sensors?

yes

Change ∆Ton and ∆Toff corre-

spondingly.

Mount the collector sensor at solar

ow (warmest collector output); use

immersion sleeve of the respective collector.

o.k.

Pump starts up very late.

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

Collector circuit pump defective?

yes

Heat exchanger calcied?

yes

Check / replace it

Decalcify it

Heat exchanger blocked?

yes

Clean it

Heat exchanger too small?

yes

Change ∆Ton and ∆Toff corre-

spondingly.

Switch-on temperature difference

∆Ton too large?

no yes

Vent the system; increase the system pressure to a static primary pressure of at least plus 0.5 bar; if necessary continue to increase pressure; switch the pump on and off

for a short time.

Plausibility control of the option

tube collector function

Replace with correctly sized

one.

Non-ideal position of the collector

sensor (e. g. atscrew sensor instead

of sensor in immersion sleeves).

yes

Activate tube collector function if

necessary.

o.k.

Note

For answers to frequently asked questions (FAQ) see www.resol.com.

Installation Indications, functions and options MessagesCommissioningOperation and function

Is the pump current enabled by the

controller?

LED in Lightwheel® illuminated? If not, press the right button. Display illuminated again?

Does the pump start up in manual operation?

The solar circuit pump does not work, although the collector is considerably

warmer than the store.

yes no

yes

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.

yes

Stores cool down at night.

Collector circuit pump runs during

the night?

no yes

Check controller

Check the non-return valves in the

ow and the return pipe for functional

efciency.

Sufcient store insulation?

yes no

Increase insulation.

Insulation close enough to the store?

yes no

Replace insulation or increase it.

Are the store connections insulated?

yes no

Insulate the connections.

Warm water outow upwards?

no yes

Change connection and let the water

ow sidewards or through a siphon

(downwards); less store losses now?

no yes

o.k.

Collector temperature at night is

higher than the outdoor temperature.

no yes

Controller might be defective - re-

place it.

Is the pump stuck?

Turn the pump shaft using a screw-

driver; now passable?

Pump is defective - replace it.

yes

Does the DHW circulation run for

a very long time?

no yes

Use the circulation pump with timer

and switch-off thermostat energy-ef-

cient circulation).

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

yes no

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

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!

Clean or replace it.

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

checked.

12 Accessories

Temperature sensors

Overvoltage protection device

V40  owmeter

SD3 Smart Display /

GA3 Large Display

AM1 Alarm Module

DL3 Datalogger

DL2 Datalogger

VBus® / USB & VBus® / LAN

interface adapters

12.1 Sensors and measuring instruments

Temperature 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.

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.).

12.2 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 and good

readability even in poor visibility conditions and from a larger distance. 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.

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.

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.

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.

12.3 Interface adapters

VBus

/ USB & VBus® / LAN interface adapters

The 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 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.

Accessories.................................................................................................................... 55, 56

Afterheating ......................................................................................................................... 41

Antifreeze function ............................................................................................................ 36

Blocking protection ........................................................................................................... 44

Booster function ................................................................................................................ 37

Code ..................................................................................................................................... 51

Collector cooling ............................................................................................................... 34

Collector emergency shutdown ..................................................................................... 34

Collector minimum temperature ................................................................................... 35

Commissioning ................................................................................................................... 23

Control lamp ....................................................................................................................... 19

Cooling function ................................................................................................................. 39

∆T control ........................................................................................................................... 32

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

Displays ................................................................................................................................. 20

Drainback option ............................................................................................................... 36

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

Error messages ................................................................................................................... 51

Fault indication.................................................................................................................... 21

Function control ................................................................................................................. 49

Heat exchange function .................................................................................................... 41

Heat quantity measurement ............................................................................................ 46

Holiday function ................................................................................................................. 43

Language ............................................................................................................................... 48

Manual mode ....................................................................................................................... 44

Menu overview ................................................................................................................... 30

Menu structure ................................................................................................................... 19

Messages .............................................................................................................................. 51

Microbuttons ....................................................................................................................... 18

Minimum and maximum temperatures ......................................................................... 31

Monitoring-Display ............................................................................................................ 20

Mounting ................................................................................................................................. 5

Night circulation ................................................................................................................. 49

Operating days .................................................................................................................... 31

Parallel relay ........................................................................................................................ 45

Priority logic ........................................................................................................................ 33

Protection against Legionella ........................................................................................... 45

Relay control ....................................................................................................................... 42

resetting balance values .................................................................................................... 20

Return preheating .............................................................................................................. 42

Solid fuel boiler ................................................................................................................... 40

Speed control ...................................................................................................................... 32

Store cooling ....................................................................................................................... 39

Store sequence control .................................................................................................... 38

System overview ................................................................................................................. 7

System screen ..................................................................................................................... 21

System selection ................................................................................................................. 31

Technical data ....................................................................................................................... 4

Temperature differential control (∆T control) ............................................................ 32

Temperature sensors ........................................................................................................ 47

Thermal disinfection .......................................................................................................... 45

Time and date ..................................................................................................................... 48

Troubleshooting .................................................................................................................. 52

User code ............................................................................................................................ 51

13 Index

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. Another 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 SLL Installation, Operation, Maintenance Manual

Specifications and Main Features

Frequently Asked Questions

User Manual