emz smart Sol plus Assembly And Operating Instructions Manual

Equipment ›Excellence‹

These Assembly and Operating Instructions are an integral part of the product.

> Read Assembly and Operating Instructions carefully before using the product.
> Keep them in a safe place during the product‘s service life.

Translation from the German original edition ©emz 2012 - Subject to modications.

The contents and representations of these Assembly and Operating
Instructions are the intellectual property of emz-Hanauer GmbH & Co.KGaA.

Non-authorized disclosure, reproduction, divulgation or editing of this
documentation, as well as exploitation, utilization or publication, are prohibited.

The rights to the word and design marks ›emz - smart solutions‹ and ›smart Sol plus‹
are the exclusive property of emz-Hanauer GmbH & Co.KGaA.

The rights to any cited brands, names or logos are the property
of their appropriate developers / of the licensees in question.

3

Table of Contents

Table of contents Page

Important fundamental information 4

Symbols used 5

Description 6

Dimensions 7

Technical Data 8

Designation of the components 10

Operation of the controller 11

Display 12

Opening the terminal cover 13

Wall-mounting 14

Connection to power supply 15

Data interfaces 19

Hydraulic systems 20

Functions for boiler control 51

Thermostat functions 54

Soft water station AQA solar 55

Commissioning mode 57

Automatic mode 63

Operation mode 64

Malfunction 78

Replacement of fuse 85

Professional mode 86

Disassembly/Disposal 107

Warranty and liability 108

Error report 109

EC Declaration of conformity 111

Index 112

4

Important fundamental information

These instructions describe installation, commissioning, operation, repair
and disassembly of the differential temperature controller smart Sol plus for
solar thermal plants.
For operation of the entire plant, the technical documentation of all the
components used such as solar collectors, boiler, tank, pumps, mixers
and valves etc. must be complied with.

The controller is handled by the operator of the entire solar
thermal plant, i. e. as a rule by technical non-experts.

Make sure not to use the controller until you have thoroughly read and
understood these Assembly and Operating Instructions and the safety provisions.
Comply with all safety provisions and involve a specialist in case of doubt.

Keep these Assembly and Operating Instructions and all reference
documents so that they are available if required.

When relocating or when selling the device, hand the documents over to your successor.

Important!

The tter installing the controller must inform the plant operator about
operation, functioning and the method of action of the smart Sol plus!

Danger!

The device in operation may only be made accessible to
adults disposing of appropriate knowledge and experience!

Danger!

The controller by no means replaces the safety
components required under plant engineering aspects!

Danger!

Assembly, connection, commissioning, repair and disassembly of

the controller may only be performed by a qualied specialist!

5

Symbols used

When handling the differential temperature controller smart Sol plus
and the entire plant, please make sure that the following safety provisions
in the Assembly and Operating Instructions are complied with!

Note!

Useful information regarding handling of the device and the plant!

Important!

Important information compliance with which is essential!

Danger!

Immediate danger for assets, life and limb!

6

Description

The differential temperature controller smart Sol plusis an independent electronic
controller for surface-mounting which is used for the control of solar thermal plants.

The controller is equipped with a robust three-part plastic housing
which can only be opened by means of tools (screw driver PH2).

Operation is effected by means of only two control elements;
indications appear against a backlit colour display.

Before connection of the electrical system, the controller

must be mounted rmly to a perpendicular, robust surface (wall).

For its own supply and the supply of the outputs, the controller must be connected
to an electrical energy supply system in accordance with the technical data.

Assembly, connection, commissioning, repair and disassembly
of the controller are only admissible in a specialist workshop.

To ensure correct operation, temperature sensors type Pt 1000
must be used - the sensor design does not affect function.

Each temperature sensor has two connectors which are equivalent,
i. e. interchangeable. Thus, polarity reversal is not an issue.

The sensor lines can be extended up to a length of 100 m, to
this effect, a cable cross section of 2 x 1.5 mm2 is recommended.

Note!

The electrical equipment of the device must be installed rmly and
connected to the power supply via a disconnector ensuring complete
isolation from the power supply according to the erection regulations!

Important!

Make sure that only a dry or slightly moistened cloth is used for cleaning
and servicing of the housing, the control elements and the display.

The surfaces must never get into contact with cleaning products
or solvents - mat, brittle or slightly dissolved plastic parts must
be replaced immediately!

A device with damaged housing must not be operated!

7

Dimensions

218 mm 51 mm

109 mm

d

max

5/9 mm

109 mm

140 mm

30 mm

48 mm

218 mm

5 mm

8

Technical Data

Intended Use

The differential temperature controller may be used exclusively as controller for the con-

trol of solar thermal plants. It must be operated within the scope of all the specications

described. Installation and set-up of the controller may only be performed by specialists.

The tter must have read and understood the operating manual.
The tter explains all the relevant functions to the operator.

For operation, it is essential that the housing is closed and free of damage.

Scope of supplies

1 Differential temperature controller smart Sol plus

1 Instruction manual

Differential temperature controller smart Sol plus

Type of mounting Wall-mounting

Housing Plastics, in several parts

Mode of operation Type 1

Type of protection IP 20

Dimensions Width x Height x Depth [mm] 218 x 218 x 51

Weight [g] Basic version 725

Storage/operating temperature [°C] 0-40, non-condensation

Handling via rotary encoder and pushbuttons

Display TFT colour display 70 x 53 mm, backlit

Connection to power supply

Design 3 spring-type terminals PE, N and L

Service voltage [VAC] 85-265

Line frequency [Hz] 50 ±1%

Auxiliary consumption typ. [W] 1.25

Power consumption max. [W] 3.1

Fuse Micro fuse, type 5 x 20 mm, T4A/250 V

Rated pulse voltage [V] 2500

Max. cross sections to be connected

Cable end sleeve: 0.25 to 0.75 mm

2

Single-wire 0.50 to 1.50 mm2

Fine-wired 0.75 to 1.50 mm

2

9

Technical Data

Interfaces TS1 - TS8

Design 2 spring-type terminals each

Assignment as inputs
Admissible temperature probe Temperature sensor Pt 1000

Optional assignment of
TS6-TS8 to the impeller sensor DFZ 1-100 pulses/litre

Optional assignment as PWM signal 100Hz...2kHz or
output on TS7/TS8 analogue output 0...10V, max. 10mA

Interfaces TS9 - TS10

Design 2 spring-type terminals each

Assignment to the impeller sensor DFZ 1-100 pulses/litre

Assignment as output PWM signal 100Hz...2kHz or
analogue output 0...10V, max. 10mA

Active outputs RO1-RO4 :Triac outputs

Design 3 spring-type terminals each, PE, N and L

Output voltage [VAC] 85-265

Output power max. per output [VA] 200

Output current max. per output [A] 1

Switching output REL: Floating change-over contact

Design 3 spring-type terminals

Switching voltage max. [V] 253

Switching capacity max. [VA] 230

Switching current max. [A] 1

Interface for analogue Vortex ow sensors

Design 1 multi-pin connector

5V/24V supply terminals

Design 1 spring-type terminal each

Output voltage [VDC] 5V/24V

Max. current per output [mA] 15

Supply terminals L

Design 1 spring-type terminal each

Output voltage [VAC] 85-265

The total current of all outputs including RO1-RO4 must not exceed 4A!

10

Designation of the components

Housing

base

Drillhole for

securing bolt

Vortex

plug connector

esc button

Display

Rotary encoder

with OK button

Housing cover

Screw fastening of terminal cover

Break-out

segments

Screw connection
strain relief device

Strain
relief device

Terminal cover

Terminals

Fuse

Spare fuse

11

Operation of the controller

The entire set-up and operation of the differential temperature controller
smart Sol plus is effected via only two control elements on the device front.

All settings and interrogations are effected via the rotary encoder.
To nd a required menu item, turn the rotary encoder to ›scroll‹

through the menu - the selectable option appears on a coloured
background on the display.

To conrm the selected menu item, press the rotary encoder.
An appropriate submenu is called up, or selection is activated.

Press the esc button to make the menu return by one level from any subitem.

If no input is made within the preset time (30-255 s),
the controller returns automatically to the initial level.

12

Activation
Start
t ON
T ON

t solar 1

n solar 1
t solar 2

10min

20.0°C

20s

100%

0s

1.3.2 Tube collector

25.08.2012 10:35

System 11

25.08.2012 10:35

Display elements; example: information screen

Display

For indication of the operating mode and for communication in case of set-up, malfunc­tion, modication and evaluation, the differential temperature controller smart Sol plus
is equipped with a coloured full graphics display which is permanently backlit.

The display is active as long as there is supply voltage on the controller.

After a preset time (30 - 255 s), backlighting is dimmed to 10%.

Active system
with current
temperatures

Display elements; example: communication screen

Activatable
menu item

Selection menu

Scroll arrow

Check box
Sub menu arrow

Date and time

Professional mode
Manual mode
Message

Number and name of menu

Date and time

13

Danger!

Mortal danger due to electrocution! Whenever work is performed on the
open terminal cover, all poles of the power supply must be
disconnected reliably and protected against being switched on again!

Opening the terminal cover

1 Release the lock screw.

2 Pull apart the sidewalls

of the terminal cover
at the lower third...

3 ...swivel the terminal

cover forward ...

4 ... push it upwards ...

5 ... and remove it.

Store the terminal cover
carefully and protect
it against damage!

To close the terminal cover,
reverse the opening procedure.

14

Wall-mounting

1 Fasten the top securing bolt so

that a space of 2 to 3 mm is
created between the wall and
the screw head.

2 Move the device so that the

upper fastening port is located
above the screw head ...

3 ... and push it downwards.

4 Fasten the lower securing bolt.

If necessary, use dowel
pins for wall-mounting!

Important!

The device corresponds to protection type IP 20 - make sure the
appropriate prerequisites exist on the envisaged place of installation.

Do not use the housing base as drill template.

A device with damaged housing must not be operated!

15

Connection to power supply

The differential temperature controller smart Sol plus is connected to the
power supply via three groups of spring-type terminals which are
visible once the terminal cover is opened.
To introduce the cables, release the screws on the strain relief device;
if necessary, remove the strain relief device.

In case of ush mounting of the cables, the break-out segments in the housing
base can be removed carefully and the cables routed through these ports.

The central terminal block is the interface to a potential-free change-over contact.

The spring-type terminals for the Power, RO1 to RO4 and REL, and for TS1 to TS10
can accommodate solid wires up to a cross section of 1.5 mm2.
Appropriate stranded wires must be preassembled with cable end sleeves.

For the strain relief device function, TS1 to TS10 and REL require
cable cross sections of at least 5mm, for Power, RO1 to RO4 at least 7mm.

Danger!

Mortal danger due to electrocution! Whenever work is performed
on the open terminal cover, all poles of the power supply must be
disconnected reliably and protected against being switched on again!

Terminal block

RO1-RO4/Power

Terminal

block REL

Terminal block

TS1-TS10

16

Connection to power supply

Connection of a pump to REL

Connection diagram for a pump to REL:

Connection of a switching valve to RO1-RO4

Connection diagram for a switching Connection diagram for a switching
valve without power supply to RO4: valve with power supply to RO4:

Connection of a switching valve to REL

Connection diagram for a switching Connection diagram for a switching
valve without power supply to REL: valve with power supply to REL:

Valve

L

N

PE

Valve

L‘
N

L

Valve

L

L‘

N

Valve

L‘

N

PE

Pump

L‘

N

PE

17

Connection to power supply

High-efciency pump:

A high-efciency pump can be connected via RO1 to RO4.
The appropriate control signal is issued at TS7 to TS10.
Thus, TS7 to TS10 is no longer available as input.
The control signal may be an analog voltage 0 - 10V or a PWM signal.

For further details, please refer to the pump specication.
For denition and settings, the professional mode under 1.2.9 has been provided.

RO1 to RO4:

230V supply of the

high-efciency pump

TS7-TS10: PWM-control signal
for the high-efciency pump
Left-hand terminal GND
Right-hand termin.: Signal

Volumetric ow sensor:

Measurement of solar radiation (heat quantity):
The solar yield is calculated from the ow rate and the differential temperature.
The differential temperature is the difference in the temperature of the collector
sensor and the solar circuit return line sensor. There are various technical options:

a) Use of a vortex volumetric ow sensor with 2 analog signals for ow rate and
temperature. The vortex sensor can be inserted directly at the plug connector provided
behind the TS terminals. All plant layouts (systems) permit solar radiation.

Pin assignment

b) Impeller sensor (incrementation input)
An impeller sensor can be connected to TS6 to TS8 and must be adjusted during
installation. The temperature sensor for the solar return line must be set
in the menu ›1.1.4 Heat quantities‹.
Solar yield measurement with impeller sensors is possible for all systems.

18

Connection to power supply

For connection, press the actuation pushbutton
of the spring-type terminal using a screwdriver and
insert the wire to its stop in the appropriate port.

Release the actuation pushbutton and
pull the cable slightly to ensure that it
is safely clamped.

Important!

Before closing the terminal cover, make
sure the strain relief device is tightened safely.

Check once more that all cables are in good
condition and connected correctly.

The strain relief device can only ensure solid
clamping if the cables are not stripped to a length
of over 35 mm.

Insulation of the individual wires must be
removed over a length of 9 - 10 mm to ensure
safe electric contact in the spring-type terminal.

Stranded wires must be provided with cable end sleeves!

9-10 mm

max.
35 mm

19

Data interfaces

The solar controller has the following data interfaces:

The cut-outs at the left of the housing base accommodate a

USB port as well as a slot for a storage medium (SD card).

These interfaces are used, for example, for reading of er-

ror messages or log data or loading of software updates.

The USB port provides access to the SD card.

Only SD cards approved by emz must be used.

The controller automatically detects the SD card.

Prior to removing the SD card
›Rem.SD card safely‹ must be
selected in ›1.2 Settings‹,
otherwise data loss may occur.

20

Hydraulic systems

Boiler with disable
recharge feature,

efciency optimization

Boiler with disable
recharge feature
time-/temperature­controlled, in combination

Boiler, e. g. using fossil
fuels/ solid fuels/
heat pump etc.

Hydraulic
heat exchanger

Temperature probe

Switching valve

Solar collector panel
Secondary yield

Solar collector panel
Main yield

Swimming pool

Warmwasserspeicher/
Pufferspeicher mit
Wärmetauschern

Warm water /
buffer tank without
heat exchanger

Heating pump

Return line

Supply line

Note!

Dene structure and design of the plant already when planning
the entire solar thermal system and align the design with the
one of the hydraulic systems of the controller!

If you want to complete an existing system or replace
the existing controller, please make sure that

smart Sol plus is compatible with the existing conguration!

The sensors are connected to TS1 to TS10, the order not being
signicant; pumps and valves are connected to RO1 to RO4 / REL - The
interfaces are assigned to the functions in question on commissioning.

21

Hydraulic system 1

Collector
sensor 1

Connection to
power supply

Tank sensor 1,

bottom

Solar circuit pump 1

RO1

TS1

TS2

Tank 1

T1

Collector
sensor 1

Solar

circuit

pump 1

Tank
sensor 1,
bottom

22

Hydraulic system 2

Collector
sensor 1

Connection to
power supply

Tank sensor 1,

bottom

Solar circuit pump 1

Tank sensor 1, top

RO1

TS1

TS2

TS3

Tank 1

T1

Collector
sensor 1

Solar

circuit

pump 1

Tank
sensor 1,
bottom

Tank sensor 1,
top

Heating boiler

connection

according to

page 51-53

23

Hydraulic system 3

Collector
sensor 1

Connection to
power supply

Tank sensor 1,

bottom

Solar circuit pump 1

Tank sensor 1, top Charging area valve

TS3

TS2

TS1

RO2

RO1

Tank 1

T1

Collector sensor 1

Solar
circuit
pump 1

Tank
sensor 1,
bottom

Tank sensor 1,
top

Charging area valve

24

Hydraulic system 4

Collector
sensor 1

Connection to
power supply

Tank sensor 1,

bottom

Solar circuit pump 1

Tank sensor 1, top Charging area valve

TS3

TS2

TS1

RO2

RO1

Tank 1

T1

Collector
sensor 1

Solar
circuit
pump 1

Tank
sensor 1,
bottom

Tank sensor 1,
top

Charging

area

valve

25

Hydraulic system 5

Collector
sensor 1

Connection to
power supply

Tank sensor 1,

bottom

Solar circuit pump 1

Heat exchanger sensor Heat exchanger pump

RO2

TS1

RO1

TS2

TS3

Tank 1

T1

Collector
sensor 1

Solar

circuit

pump 1

Tank
sensor 1,
bottom

Heat ex-

changer

sensor

Heat

exchanger

pump

26

Hydraulic system 6

Collector
sensor 1

Connection to
power supply

Tank sensor 1,

bottom

Solar circuit pump 1

Tank sensor 1, top Heat exchanger pump

Heat exchanger sensor

RO2

TS1

RO1

TS2

TS4

Tank 1

T1

Collector
sensor 1

Solar

circuit

pump 1

Tank
sensor 1,
bottom

Heat ex-

changer

sensor

Heat

exchanger

pump

TS3

Tank sensor 1,
top

Heating boiler

connection

according to

page 51-53

27

Hydraulic system 7

Collector
sensor 1

Connection to
power supply

Tank sensor 1,

bottom

Solar circuit pump 1

Bypass sensor Bypass valve

RO1

TS1

TS3

RO2

TS2

Tank 1

T1

Collector
sensor 1

Solar

circuit

pump 1

Tank
sensor 1,
bottom

Bypass valve

Bypass

sensor

28

Hydraulic system 8

Collector
sensor 1

Connection to
power supply

Tank sensor 1,

bottom

Solar circuit pump 1

Tank sensor 1, top Bypass valve

Bypass sensor

RO1

TS1

TS4

RO2

TS2

Tank 1

T1

Collector
sensor 1

Solar

circuit

pump 1

Tank
sensor 1,
bottom

Bypass valve

Bypass

sensor

TS3

Tank sensor 1,
top

Heating boiler

connection

according to

page 51-53

29

Hydraulic system 9

Collector
sensor 1

Connection to
power supply

Tank sensor 1,

bottom

Solar circuit pump 1

Tank sensor 1, top Transfer pump

Tank sensor 2, bottom

TS4

RO1

TS1

TS3

TS2

RO2

Tank 1

T1

Tank 2

T2

Collector
sensor 1

Solar

circuit

pump 1

Tank
sensor 1,
bottom

Transfer
pump

Tank sensor 1,
top

Tank
sensor 2,
bottom

30

Hydraulic system 10

Note: Priority charging has
been set to T2 in the factory.

Collector
sensor 1

Connection to
power supply

Tank sensor 1,

bottom

Solar circuit pump 1

Tank sensor 2, bottom Solar circuit pump 2

TS2

TS1

TS3

RO1

RO2

Tank 1

T1

Tank 2

T2

Collector
sensor 1

Solar circuit
pump 1

Tank
sensor 1,
bottom

Solar circuit pump 2

Tank
sensor 2,
bottom

31

Hydraulic system 11

Note: Priority charging has
been set to T2 in the factory.

Collector
sensor 1

Connection to
power supply

Tank sensor 1,

bottom

Solar circuit pump 1

Tank sensor 1, top Solar circuit pump 2

Tank sensor 2, bottom

TS2

TS1

TS4

RO1

RO2

Tank 1

T1

Tank 2

T2

Collector
sensor 1

Solar circuit
pump 1

Tank
sensor 1,
bottom

Solar circuit
pump 2

Tank
sensor 2,
bottom

TS3

Tank sensor 2,
top

Heating boiler

connection

according to

page 51-53

32

Hydraulic system 12

Note: Priority charging has
been set to T2 in the factory.

Collector
sensor 1

Connection to
power supply

Tank sensor 1,

bottom

Solar circuit pump 1

Tank sensor 2, bottom Tank switching valve

TS2

RO1

TS1

RO2

TS3

Tank 1

T1

Tank 2

T2

Collector
sensor 1

Solar circuit
pump 1

Tank
sensor 1,
bottom

Tank switching valve

Tank
sensor 2,
bottom

33

Hydraulic system 13

Note: Priority charging has
been set to T2 in the factory.

Collector
sensor 1

Connection to
power supply

Tank sensor 1,

bottom

Solar circuit pump 1

Tank sensor 2, top Tank switching valve

Tank sensor 2, bottom

TS2

RO1

TS1

RO2

TS4

Tank 1

T1

Tank 2

T2

Collector
sensor 1

Solar circuit
pump 1

Tank
sensor 1,
bottom

Tank switching valve

Tank
sensor 2,
bottom

TS3

Tank sensor 2,
top

Heating boiler

connection

according to

page 51-53

34

Hydraulic system 14

Collector
sensor 1

Connection to
power supply

Tank sensor 1,

bottom

Solar circuit pump 1

Collector sensor 2 Solar circuit pump 2

TS2

TS1

TS3

RO1

Tank 1

T1

Collector
sensor 1

Solar circuit
pump 1

Tank
sensor 1,
bottom

Collector
sensor 2

RO2

Solar circuit

pump 2

35

Hydraulic system 15

Collector
sensor 1

Connection to
power supply

Tank sensor 1,

bottom

Solar circuit pump 1

Tank sensor 1, top Solar circuit pump 2

Collector sensor 2

TS3

TS2

TS1

TS4

RO1

Tank 1

T1

Collector
sensor 1

Solar circuit
pump 1

Tank
sensor 1,
bottom

Collector
sensor 2

RO2

Solar circuit

pump 2

Tank sensor 1,
top

Heating boiler

connection

according to

page 51-53

36

Hydraulic system 16

Collector
sensor 1

Connection to
power supply

Tank sensor 1,

bottom

Solar circuit pump 1

Collector sensor 2 Three-way valve

TS2

TS1

TS3

RO1

Tank 1

T1

Collector
sensor 1

Solar circuit
pump 1

Tank
sensor 1,
bottom

Collector
sensor 2

RO2

Three-way valve

37

Hydraulic system 17

Collector
sensor 1

Connection to
power supply

Tank sensor 1,

bottom

Solar circuit pump 1

Tank sensor 1, top Three-way valve

Collector sensor 2

TS3

TS2

TS1

TS4

RO1

Tank 1

T1

Collector
sensor 1

Solar circuit
pump 1

Tank
sensor 1,
bottom

Collector
sensor 2

RO2

Tank sensor 1,
top

Three-way valve

Heating boiler

connection

according to

page 51-53

38

Hydraulic system 18

Collector
sensor 1

Connection to
power supply

Tank sensor 1,

bottom

Solar circuit pump 1

Tank sensor 2, bottom Tank switching valve

TS2

RO1

TS1

RO2

TS3

Tank 1

T1

Tank 2

T2

Collector sensor 1

Solar circuit
pump 1

Tank
sensor 1,
bottom

Tank switching valve

Tank
sensor 2,
bottom

Note: Priority charging has
been set to T2 in the factory.

39

RO1

Solar
circuit
pump 1

RO2

Three-way valve

Tank 1

T1

Tank 2

T2

Tank 3

T3

TS1

Collector sensor 1

TS2

Tank

sensor 1,

bottom

TS3

Tank

sensor 2,

bottom

TS4

Tank

sensor 3,

bottom

RO3

Three-way valve

Hydraulic system 19

Collector
sensor 1

Connection to
power supply

Tank sensor 1,

bottom

Solar circuit pump 1

Tank sensor 2, bottom Three-way valve

Tank sensor 3, bottom Three-way valve

40

Hydraulic system 20

Collector
sensor 1

Connection to
power supply

Tank sensor 1,

bottom

Solar circuit pump 1

Tank sensor 1, top

Return line sensor

TS3

TS2

TS1

RO1

Tank 1

T1

Collector
sensor 1

Solar circuit

pump 1

Tank
sensor 1,
bottom

Tank

sensor

1, top

TS4

Return line
sensor

Three-way valve,
return temperature
increase

RO3

Three-way valve,
return temperature increase

41

Hydraulic system 21

Collector
sensor 1

Connection to
power supply

Heat exchanger

sensor

Solar circuit pump 1

Swimming pool sensor Heat exchanger pump

Collector sensor 2 Three-way valve

TS3

TS2

TS1

RO1

1 Collector sensor 2

Solar circuit

pump 1

TS4

Swimming

pool sensor

Heat
exchanger
sensor

Heat exchanger pump

RO3

RO2

Three-way valve

42

Hydraulic system 22

Collector
sensor 1

Connection to
power supply

Heat exchanger

sensor

Solar circuit pump 1

Swimming pool sensor Solar circuit pump 2

Collector sensor 2 Heat exchanger pump

TS3

TS2

TS1

RO1

1 Collector sensor 2

Solar circuit
pump 1

TS4

Swimming

pool sensor

Heat
exchanger
sensor

Heat exchanger pump

RO3

RO2

Solar circuit
pump 2

43

Hydraulic system 23

Collector

sensor 1

Connection to
power supply

Heat exchanger

sensor

Solar circuit pump 1

Swimming pool sensor Solar circuit pump 2

Tank sensor 1, bottom Heat exchanger pump

TS3

TS2

TS1

RO1

Collector sensor 1

Solar circuit
pump 1

Tank
sensor 1,
bottom

TS4

Swimming

pool sensor

Heat
exchanger
sensor

Heat exchanger pump

RO3

Tank 1

T1

RO2

Solar circuit pump 2

Note: Priority charging has
been set to T1 in the factory.

44

Hydraulic system 24

Collector
sensor 1

Connection to
power supply

Heat exchanger

sensor

Solar circuit pump 1

Swimming pool sensor Heat exchanger pump

Tank sensor 1, bottom Three-way valve, buffer tank 1

TS3

TS2

TS1

RO1

Collector sensor 1

Solar circuit

pump 1

Tank
sensor 1,
bottom

TS4

RO3

Swimming

pool sensor

Heat
exchanger
sensor

Heat exchanger pump

Three-way valve,

buffer tank 1

RO2

Tank 1

T1

Note: Priority charging has
been set to T1 in the factory.

45

Hydraulic system 25

Collector

sensor 1

Connection to
power supply

Tank sensor 1,

bottom

Solar circuit pump 1

Tank sensor 1, top Charging area valve

Tank sensor return line Three-way valve,

return temperature increase

Return line sensor

TS3

TS1

RO1

Tank 1

T1

Collector sensor 1

Solar
circuit
pump 1

Tank sensor 1,
top

TS2

Tank sensor 1,
bottom

Return
line sensor

Three-way valve, return
temperature increase

RO3

RO2

Charging area valve

TS5

Tank sensor
return line

TS4

46

Hydraulic system 26

Collector
sensor 1

Connection to
power supply

Tank sensor 1,

bottom

Solar circuit pump 1

Tank sensor 1, top Solar circuit pump 2

Collector sensor 2 Three-way valve,

return temperature increase

Return line sensor

TS3

TS1

TS4

RO1

Tank 1

T1

Collector
sensor 1

Solar circuit
pump 1

Collector
sensor 2

Tank sensor 1,
top

RO2

Solar circuit

pump 2

TS2

Tank sensor 1,
bottom

TS5

Return
line sensor

Three-way valve, return
temperature increase

RO3

Heating boiler

connection

according to

page 51-53

47

Hydraulic system 27

Collector

sensor 1

Connection to
power supply

Heat exchanger

sensor

Solar circuit pump 1

Swimming pool sensor Heat exchanger pump

Tank sensor 1, bottom Three-way valve, buffer tank 1

Tank sensor 1, top Three-way valve,

return temperature increase

Return line sensor

TS5

Tank sensor 1,
top

TS4

Tank sensor 1,
bottom

Return line
sensor

Three-way valve, return
temperature increase

RO4

TS6

TS3

TS2

TS1

RO1

Collector sensor 1

Solar circuit

pump 1

RO3

Swimming

pool sensor

Heat
exchanger
sensor

Heat exchanger pump

Three-way valve,

buffer tank 1

RO2

Tank 1

T1

Note: Priority charging has
been set to T1 in the factory.

48

Hydraulic system 28

Collector
sensor 1

Connection to
power supply

Tank sensor 1,

bottom

Solar circuit pump 1

Tank sensor 1, top Three-way valve

Collector sensor 2 Three-way valve,

return temperature increase

Return line sensor

TS3

TS1

TS4

RO1

Tank 1

T1

Collector
sensor 1

Solar circuit
pump 1

Collector
sensor 2

Tank sensor 1,
top

RO2

TS2

Tank sensor 1,
bottom

TS5

Return
line sensor

Three-way valve, return
temperature increase

RO3

Three-way valve

Heating boiler

connection

according to

page 51-53

49

Hydraulic system 29

Collector

sensor 1

Connection to
power supply

Tank sensor 1,

bottom

Solar circuit pump 1

Tank sensor 1, top Solar circuit pump 2

Tank sensor 2, bottom Three-way valve,

return temperature increase

Tank sensor 2, top

Return line sensor

TS3

TS1

RO1

Tank 1

T1

Collector
sensor 1

Solar
circuit
pump 1

Tank sensor 1,
top

TS2

Tank sensor 1,
bottom

TS6

Return line
sensor

Three-way valve, return
temperature increase

RO3

RO2

Solar

circuit

pump 2

Tank 2

T2

TS5

Tank sensor 2,
top

TS4

Tank sensor 2,
bottom

Note: Priority charging has
been set to T2 in the factory.

Heating boiler

connection

according to

page 51-53

50

Hydraulic system 30

Collector
sensor 1

Connection to
power supply

Tank sensor 1,

bottom

Solar circuit pump 1

Tank sensor 1, top Tank switching valve

Tank sensor 2, bottom Three-way valve,

return temperature increase

Tank sensor 2, top

Return line sensor

TS3

TS1

RO1

Tank 1

T1

Collector
sensor 1

Solar circuit
pump 1

Tank sensor 1,
top

TS2

Tank sensor 1,
bottom

TS6

Return
line sensor

Three-way valve, return
temperature increase

RO3

RO2

Tank switching
valve

Tank 2

T2

TS5

Tank sensor 2,
top

TS4

Tank sensor 2,
bottom

Note: Priority charging has
been set to T2 in the factory.

Heating boiler

connection

according to

page 51-53

51

Functions for boiler control

The functions for boiler control are accomplished
via the potential-free relay contact which is connected
accordingly to the relevant interface of the heating boiler.

The individual functions are assigned
the following priorities:

A Anti-legionella priority 1
B recharge suppression priority 2
C reheating priority 3

Boiler

Anti-legionella function

The anti-legionella functions checks if the minimum heating for reduction of legionella
has been achieved in the tank due to heating activity or solar heat within a set interval.

f no sufcient heating has been achieved by these means the controller starts a reheat
cycle, specically for reduction of legionella.

The tter must set the parameters based on the applicable general directives and local

requirements. The time of the disinfection cycle can be determined freely.

Reheat function

The temperature sensor in the upper tank area supplies the values for reheating.

For oil or gas operated systems, reheating takes place via the heating boiler.

For solid-fuel boilers, reheating takes place via the heat present in the drinking water
tank. To this effect, the temperature within the tank must be within preset limits.

The temperature control is interlinked with six time blocks.

Reheating is activated as soon as the temperature falls below
the set value by the hysteresis value in the current time block.
When the set value is exceeded the reheating cycle stops.

Disable recharge

The efciency of a solar plant increases as the recharge of the tank from the
boiler decreases. Consequently, „disable recharge“ means that
recharging of the water tank is blocked by the boiler.

Time-controlled disable recharge

Recharge is blocked by the boiler for specic phases via a time program.
Within the preset period of time (for ex. 7 to 19 h), recharge is blocked completely
by the boiler without requiring the minimum temperature to this effect.

52

Functions for boiler control

Time-/temperature-controlled disable recharge

If a minimum temperature in the tank is exceeded, disable recharge is activated.
This function can be activated in parallel to the time program.
If the preset minimum temperature (e. g. 45°C) in the tank
is exceeded, recharge of the tank is disabled by the boiler.
If, however, the minimum temperature is no longer reached, recharge is enabled
by the boiler no matter whether the time program blocks recharge or not.

Efciency-optimized recharge suppression

If the calculated minimum temperature in the buffer tank is exceeded, the
disabled recharge feature is activated. The installer can specify two weighting
factors in menu 1.4.3 for the calculation of this minimum temperature:

Factor 1 Parameter values from 1-10 whereby:
Solar yield 1 = more solar yield, less recharge by the boiler
:
10 = less solar yield, more recharge by the boiler

Factor 2 Parameter values from 1-10 whereby:
Comfort 1 = lower comfort, less recharge by the boiler
:
10 = higher comfort, more recharge by the boiler

t

T

Factor 1 = 7

Factor 2 = 7

t

T

Factor 2 = 1

Factor 1 = 5

t

T

Factor 2 = 5

Factor 1 = 1

A exible minimum
temperature is thus
calculated once per
day which disables the
recharge by the boiler.

This exible minimum
temperature is between
›T min. tank‹ and ›T target‹.

Q

t

Solar energy history

t

T

T min. tank (e.g.35°C)

T targ. (e.g. 45°C)

Recharge active

Recharge suppressed

53

Functions for boiler control

Sensor type Pt 100 Pt 500 Pt 1000

R Terminal 12 130 Ω 620 Ω 1,3 kΩ

Colour code

Boiler

R (T=70°C)

Tank sensor

top

Note!

For boilers without control input, the functions for boiler control
can be accessed by the simulation of temperature values.

To enable reheating or anti-legionella functions, the corresponding
boiler temperature must be increased at the boiler control.

The differential temperature controller smart Sol plus
regulates the boiler control functions by a xed value
resistance simulating a charged buffer tank for the boiler.

The resistance value depends on the type of sensor the heating
is adjusted to - this information is provided in the boiler manual.

Connection provided at the
REL terminal block, as illustrated.

54

T OFF

ROx

T

t

T ON

Temperature thermostat ›Cooling‹:
T ON > T OFF The output is activated once the
›T ON‹ temperature is reached, and deactivated
once the ›T off‹ temperature is reached.

T ON

ROx

T

t

T OFF

Temperature thermostat ›Heating‹:
T OFF > T ON The output is deactivated once the
›T OFF‹ temperature is reached, and activated
once the ›T ON‹ temperature is reached.

Thermostat functions

ROx

8:00 9:00

t

T OFF

ROx

T

t

T ON

8:00 9:00

The controller’s free outputs can be used as thermostats for various applications.

Settings must be made to this effect in professional mode under ›1.3.1 Thermostat‹.
Control signals can be dened as temperature thermostat, timer,

timer thermostat or temperature comparator.

Timer-Thermostat
Combination of timer and thermostat.
Once at least one of these criteria is met,
the output is activated.

Temperature comparator
Any temperature difference to a reference
sensor will trigger a control signal:
The output is activated once ›dT ON‹ is reached,
and deactivated once ›dT OFF‹ is reached.

Timer function:
The output is activated
within a selected time frame.

dT OFF

dT ON

ROx

TSx

T

t

Reference sensor

55

RO1

TS1

TS2

TS3

Speicher 1

SP1

Soft water station AQA solar

In the main menu, information trans­mitted by the soft water station can
be retrieved under ›1.8 AQA solar‹.

In a specic equipment version (with an extension module), the differential
temperature controller smart Sol plus can be connected to the soft water station
AQA solar of BWT Wassertechnik GmbH, Schriesheim.

AQA solar is a decalcication plant based on an ion exchanger, which ensures that
the water lines and heat exchangers in your home are not damaged by scaling.

In case of very intense temporary heating of the drinking water, especially with

thermal solar systems, decalcication is very useful to maintain efciency.

Setup and operation of the equipment combination smart Sol plus and AQA solar
is described in separate documentation and/or the operating manual of BWT.

Integration of the soft water station
is possible in all hydraulic systems of
the smart Sol plus, and is displayed,
e. g.:

For connection, the terminals
›Tx‹, ›Rx‹ and ›Gnd‹ above
the interface terminals TS1 to TS10
are provided on the extension modules.

Soft water

Flow rate
Soft water delivery

recent regeneration

Salt consumption

421l/h

317m3

24.08.2012 09:00

66g

1.8 AQA solar

25.08.2012 10:30

56

57

Commissioning mode

›0.1 Language‹ appears after
a short booting sequence.

Various languages are available in
this version of the smart Sol plus.

Activate the required version and
acknowledge by pressing ›Next‹.

This is an explanation in terms of an example of commissioning of the
differential temperature controller smart Sol plus; details vary along

with the hydraulic conguration and the software version.

Commissioning is communicated in plain text; the user must make a
selection, acknowledge and - if applicable - jump to the next menu item.

The differential temperature controller smart Sol plus accompanies you during the

entire conguration and interrogates everything it must know for optimum operation.

Now, the power supply of the controller must
be switched on - the display screen appears.

Important!

For commissioning, the controller must be assembled
correctly, all inputs and outputs must be connected
and ready for operation, the strain relief device must
be screw-fastened and the terminal cover closed!

Deutsch

English
Français
Italiano

Česky

Español
Polski

0.1 Language

25.08.2012 09:12

58

Commissioning mode

›0.3 Inputs‹ appears.

Select and activate the input inter­faces TS1 to TS8 used and assign the
selected function to them by scrolling.

Once all inputs have been assigned
correctly, acknowledge by pressing
›Next‹.

Important!

At the interfaces TS6 / TS7 / TS8 an impeller sensor

can be selected as owmeter via ›Impeller‹.

›0.2 Time/date‹ appears.

Press ›OK‹ - the hour is highlighted in
colour.

Turn the rotary encoder until the
correct gure appears, and
acknowledge via the ›OK‹ button.

The controller accepts the value
and jumps to the minute setting.

In this way, all values for time and
date
can be entered.

If the differential temperature con­troller is installed at a location where
daylight-saving time exists, the time
shift can be activated here.

Acknowledge by pressing ›Next‹.

Date

Time
Automat. Clock Change

25.08.2012

09:12

Next

0.2 Time/Date

25.08.2012 09:12

TS1

TS2

TS3

TS4

77.6°C

Collector 1

46.7°C

Tank1 bottom

42.2°C

Tank2 bottom

61.4°C

0.3 Inputs

25.08.2012 09:12

59

Commissioning mode

›0.5 Outputs‹ appears.

Select and activate the output in­terfaces RO1 - RO4 / REL used and
assign them to the selected function
by scrolling.

Once all outputs have been assigned
correctly, acknowledge by pressing
›Next‹.

›0.4 Volumetric ow‹ appears.

If TS6 / TS7 / TS8 has already been
assigned to ›Impeller‹, ›Impeller‹ will
appear here in terms of sensor sys­tem. The number of pulses per litre
still has to be selected.

If different features (or no features)
are assigned to TS6 / TS7 / TS8, a

vortex sensor or a ow rate detector

can be selected via pump
activation. To this effect, the vortex

volumetric ow sensor installed or the
max. pump ow rate still have to be
dened.

Acknowledge by pressing ›Next‹..

Important!

A high-efciency pump can be connected to TS7 to TS10.

The WILO ST 25/7 PWM is preassigned.

Vortex UI12

Flow rate

connected to

Grundfos 1-12l/min

RO2

Next

0.4 Volumetric flow

25.08.2012 09:13

RO1

HE-control signal

RO2
RO3
RO4
REL

Solar pump 1

---

---

---

---

---

Next

0.5 Outputs

25.08.2012 09:13

60

Commissioning mode

›0.7 Checklist‹ appears.

Here, the submenus Test outputs and
Holiday function are made available.

By selecting ›SP 1 (top), a scrollbox
is displayed in which an appropriate
input (TS1 - TS8) can be assigned.

Select Test outputs and activate
by pressing the OK button.

Now, the controller offers the hydrau­lic systems which are possible due to
the assigned inputs and the selected
outputs.

By turning the rotary encoder, the
required system can be selected
(here system 1 of 3 possible ones)
and acknowledged via the button
›OK‹.

Note!

Here, access to all plant layouts is possible for testing purposes
via the option ›Show all‹. However, for correct operation, one of
the plant layouts suggested by the controller must be selected.

System 1/3

25.08.2012 09:13

Test outputs

Holiday function
Tank 1 top

Next

0.7 Checklist

25.08.2012 09:14

61

Commissioning mode

›0.7 Checklist‹ reappears.

As the plant, when not in use, is only
supplied with heat, but no heat is
withdrawn, it may be subject to
overheating and damage.

Thus, a ›holiday function‹ was
programmed which minimizes
heat input.

Here, the holiday function can be set -
call up by pressing the ›OK‹ button.

›0.8 Test outputs‹ appears.

Here, the outputs can be activated
manuallyvia the ›OK‹ button to test
the function of the activated output or
of the connected unit.

If not all pumps and valves are work­ing properly, the plant elements in
question and the cabling must be

veried and repaired.

Acknowledge by pressing ›Next‹.

RO1

RO2
RO3
RO4
REL

Next

0.7.1 Test outputs

25.08.2012 09:14

Test outputs

Holiday function

Tank 1 top

Next

0.7 Checklist

25.08.2012 09:14

62

Commissioning is complete.

As of this point, the smart Sol plus
controls the solar thermal plant
automatically.

›0.7 Checklist‹ reappears.

Acknowledge by pressing ›Next‹.

›0.9 End‹ appears.

By ›Next‹, the controller
changes over to ›Automatic mode‹.

Various options can be selected
for the holiday function.

At lower ambient temperatures
(e. g. at night), tank recooling tries
to dissipate heat via the collectors.

The soft charge circuit is designed so
that the heat input into the tank is as
low as possible.

The appropriate switch-ON and OFF
temperatures must be varied as
required.

Acknowledge by pressing ›Next‹.

Commissioning mode

Tank recooling

Soft charge
T-ON
T-OFF

120.0°C

100.0°C

Next

0.7.2 Holiday function

25.08.2012 09:14

You have completed
commissioning!

Next

0.9 End

25.08.2012 10:15

System 11

25.08.2012 09:16

63

Automatic mode

In automatic mode, the screen
displays the date, the time and
the active hydraulic system.

The current temperature is displayed
for each temperature sensor.

The pump activity is displayed
on the display as animation.

There is no need for intervention

by the tter or operator.

Note!

Check the display screen of the smart Sol plus on a regular
basis to be able to eliminate any malfunctions promptly!

System 11

25.08.2012 09:17

64

Operation mode

On the controller, the user can make
various settings and obtain informa­tion about states and processes.

To this effect, press the button
›OK‹ in automatic mode.

›1 Main menu‹ appears.

A list of subitems appears

By scrolling ...

...the lower part of
the menu is displayed.

Once the rst subitem
›Evaluation‹ is selected, ...

System 11

25.08.2012 10:19

Evaluation

Settings
Basic functions

Efciency functions

Protective funct.
Monitoring
Login

1 Main menu

25.08.2012 10:19

Settings
Basic functions

Efciency functions

Protective funct.
Monitoring
Login

About smartSol

1 Main menu

25.08.2012 10:19

65

Operation mode

...›1.1 Evaluation‹ appears.

Another selection level appears.
Once the rst subitem

›Measured values‹ is selected, ...

...›1.1.1 Measured val...‹ appears.

Here, the temperatures and
dates concerning the controller
are displayed.

If additional tank sensors have
been dened on commissioning,
these measurands also appear here.

Return to ›1.1 Evaluation‹.

Once the second subitem
›Service hours‹ is selected, ...

...›1.1.2 Service hours‹ appears.

The operating time of the activated
plant components is displayed in
hours.

By actuating the menu item ›Reset‹,
all counters are reset to zero.

The values are saved once per day,
so that one day max. is „lost“ in
case of failure of the power supply.

Return to ›1.1 Evaluation‹.

Once the third subitem
›CO2 savings‹ is selected, ...

Measured values

Service hours
CO2 savings
Heat quantities
Error list

1.1 Evaluation

25.08.2012 10:20

Collector temperature1

Tank 1 bottom temp.
Tank 2 bottom temp.
Tank 1 top temp.Solar
Solar pump 1
Solar pump 2
Boiler

78.2°C

47.0°C

42.1°C

61.4°C

80%

34%

OFF

1.1.1 Measured values

25.08.2012 10:20

Solar pump 1

Solar pump 2
Boiler
Reset

112h

94h

361h

1.1.2 Service hours

25.08.2012 10:21

66

Operation mode

...›1.1.3 CO2 savings‹ appears.

Here, assessment of the saved carbon
dioxide can be activated, read and
reset.

By selecting ›Fuel‹...

...›Edit‹ appears.

Here, the fuel types natural gas or
fuel oil can be selected for a calcula­tion of CO2.

Return to ›1.1 Evaluation‹.

Continue with ›Heat quantities‹.

›1.1.4 Heat quantities‹ appears.

Up to four heat counters can be
congured for the collection of
the generated energy quantity.

The evaluation period can be selected
via the ›Diagram‹ - ›Week‹, ›Month‹
or ›Year‹

Press ›Reset‹ to reset
the counter to 0.

Activation

CO2 Savings (calc.)
Reset
Fuel

447 kg

Natural gas

1.1.3 CO2 savings

25.08.2012 10:21

Fuel

Restore last value

Factory settings

Natural gas

Edit

25.08.2012 10:15

Heat qty. 1

Heat qty. 2
Heat qty. 3
Heat qty. 4
Diagram
Reset

1.1.4 Heat quantities

25.08.2012 10:22

Week

67

Operation mode

The evaluation appears
as a bar graph.

Selecting a submenu,
e.g. ›Heat qty. 1‹...

150

125

100

75

50

25

0

7d [kWh]

1.1.4 Heat quantities

25.08.2012 10:22

...will access ›1.1.4.1 heat qty. 1‹

Activation will start a counter
which calculates heat yield.

›Volume ow‹ denes the volume
ow sensor to be used.

Return and feed sensors are assigned.

In addition to the operation mode’s
functions, the sensors in the return
and supply lines are assigned.

›Efcient tank-charge‹ denes
whether this heat quantity is

used for efcient buffer charge.

›Add to overall HQ‹ adds each
heat quantity to the overall counter.

Continue with ›Error list‹.

Activation

Heat quantity (calculated)

Volume ow

Return line sensor
Supply line sensor

0 kWh

---

---

---

1.1.4.1 heat qty. 1

25.08.2012 10:22

Return line sensor
Supply line sensor
Glycol type

Efcient tank-charge

Add to overall HQ

---

---

Water

1.1.4.1 heat qty. 1

25.08.2012 10:22

68

Operation mode

›1.1.5 Error list‹ appears.

Here, a table of the last errors
occurred appears for information.

By selecting a fault ...

... the error message
appears in plain text.

If necessary, take the
appropriate measures.

Return to ›1 Main menu‹.

Continue with ›Settings‹.

›1.2 Settings‹ appears.

Another selection level appears.
Once the rst subitem

›Date/Time‹ is selected, ...

M33: 4:31 03.07

M32: 6:44 03.07
M05: 7:01 03.07

---

---

---

---

1.1.5 Error list

25.08.2012 10:22

M05:
Sensor short-circuit
on TS3!

Press ESC to return

1.10 Error list

25.08.2012 10:22

Date/Time

Language
Display
Remove SD card safely
Factory settings

1.2 Settings

25.08.2012 10:23

69

Operation mode

...›1.2.1 Date settings‹ appears.

Here, date and time can be set in
case of deviation or an extended
period of deenergizing.

If the differential temperature con­troller is installed at a location where
daylight-saving time exists, the time
shift can be activated here.

Select the subitem
›Date‹ or ›Time‹ by pressing ›OK‹.

One group of gures each is activated
and can be varied via the rotary en­coder; whenever ›OK‹ is pressed, the
activation
jumps to the next group.

Return to ›1.2 Settings‹.

Continue with ›Language‹.

›1.2.2 Language‹ appears.

Here, the user can change over
to another available language.

Continue with ›Display‹.

Date
Time
Automat.Clock Change

25.08.2012

10:23

1.2.1 Date setting

25.08.2012 10:23

Date

Time
Automat.Clock Change

25.08.2012

10:23

1.2.1 Date setting

25.08.2012 10:23

Deutsch

English
Français
Italiano

Česky

Español
Polski

1.2.2 Language

25.08.2012 10:23

70

Operation mode

Before the SD card can be removed,
›Remove SD card safely‹ must have
been selected.

The last menu item is
›Factory settings‹.

By selecting and pressing the
button ›OK‹, followed by ›esc‹,
the preset values are deleted and
replaced by the factory settings.

Return to ›1 Main menu‹.

Continue with ›Basic functions‹.

›1.3 Basic functions‹ appears.

Another selection level appears.
Once the rst subittem

›Thermostat‹ is selected, ...

›1.2.7 Display‹ appears.

›Brightness‹ serves to adjust the
backlighting of the display in steps
of 5% from 10% to 100%.

›Blanking time‹ is used to determine
the time after which, in case of inac­tivity, backlighting is reduced from the
set value to 10%. Adjustable in the
range from 30 to 255 seconds.

Return to ›1.2 Settings‹.

Brightness

Blanking time

100%

180s

1.2.7 Display

25.08.2012 10:23

Date/Time
Language
Display
Remove SD card safely

Factory settings

1.2 Settings

25.08.2012 10:24

Thermostat

Tube collector
Holiday function
Delta T control
Fixed T control
Post Heating Request
Increase return T

1.3 Basic functions

25.08.2012 10:25

71

Operation mode

...›1.3.1 Thermostat‹ appears.

The controller‘s free outputs can
be used as thermostats for various
applications.

In professional mode, presettings
must be made to this effect - your
tter will explain the appropriate
function to you, if necessary.

By selecting a subitem ...

...the appropriate activation
screen is displayed.

Return to ›1.3 Basic functions‹.

Continue with ›Tube collector‹.

›1.3.2 Tube collectors‹ appears.

This option is to be activated in case
vacuum tube collectors are used.

Return to ›1.3 Basic functions‹.

Continue with ›Holiday function‹.

Thermostat RO3

Thermostat RO4

1.3.1 Thermostat

25.08.2012 10:25

Activation

1.3.1 Thermostat RO3

25.08.2012 10:25

Activation

1.3.2 Tube collector

25.08.2012 10:25

72

Operation mode

›1.3.3 Holiday funct...‹ appears.

Here, you enter the time of your next
holiday. “Holiday” means that the
heating/
warm water plant is not used in sum­mer.

In this case, the controller will adapt
control for the specied period so that
overheating of the plant is prevented.

First select the subitem ›Start‹,
then ›End‹ by pressing ›OK‹.

›Edit‹ appears.

Here, the dates of your absence are
entered. Return to ›1.3 Basic func­tions‹.

Continue with ›Delta T control‹.

›1.3.5 dT control‹ appears.

Here, parameters of the
controller can be changed.

The factory settings of the
smart Sol plus can be used
for almost all plants.

Ask a tter before making
changes at this point.

Return to ›1.3 Basic functions‹.

Continue with ›Fixed T control‹.

Start of holiday

End of holiday

19.07.2013

02.08.2013

1.3.3 Holiday function

25.08.2012 10:26

Start of holiday

Restore last value

Factory settings

19.07.2013

Edit

25.08.2012 10:26

dT-ON 1

dT-OFF 1

8.0k

4.0k

1.3.5 dT control

25.08.2012 10:27

73

Operation mode

›1.3.6 Fixed temp.c...‹ appears.

Here, the temperature values for
the collector panels are entered which
are to be achieved via control of the
pump delivery rate in question.

The factory settings of the
smart Sol plus can be used
for almost all plants.

Return to ›1.3 Basic functions‹.

Continue with ›Increase return T‹.

›1.3.10 Post Heatin...‹ erscheint.

The reheating control reacts to the
values of the top tank sensor. If the
temperature falls below ›t charge‹
minus the hysteresis, the control
activates the reheating cycle via the
heating boiler. When the set value
is reached the reheating cycle is
stopped.

Return to ›1 Main menu‹.

Continue with ›Efciency functions‹.

›1.3.8 Increase retu...‹ appears.
Parameters for return ow

temperature increase can

be dened here.
Ask a tter before making

changes at this point.

Return to ›1 Main menu‹.

Continue with ›Post Heating Request‹.

T-xed 2

70.0°C

1.3.6 Fixed temp.cont...

25.08.2012 10:27

Activation

T ON
T OFF
T min

8.0K

4.0K

15.0°C

1.3.8 Increase return ...

25.08.2012 10:27

Hysteresis

Time block 1
Time block 2
Time block 3
Time block 4
Time block 5
Time block 6

10.0K

1.3.10 Post Heating R...

25.08.2012 10:27

74

Operation mode

›1.4 Efciency funct...‹ appears.

Another selection level appears.
Once the rst subitem

›disable recharge‹ is selected, ...

›1.5 Protective funct.‹ appears.

Another selection level appears.

Continue with ›Collector defrost.‹.

... ›1.4.3 disable recha...‹ appears.

This option must be activated if
recharging of the warm water tank
is to be switched off as a function of
time or temperature.

To this effect, the tter must
make the appropriate presettings.

Return to ›1 Main menu‹.

Continue with ›Protective functions‹.

Disable recharge

1.4 Efficiency functions

25.08.2012 10:28

Activate time program

Activate T-min

Activat.Tmin oat

1.4.3 Disable recharge

25.08.2012 10:28

Collector defrosting

Tank cooling
Soft charge

1.5 Protective funct.

25.08.2012 10:29

75

Operation mode

›1.5.2 Defrosting‹ appears.

›Defrosting‹ can be used
to heat frozen collectors.

At the same time, the tank is cooled!

This is a one-time action which
must be repeated as required.

Return to ›1.5 Protective functions‹.

Continue with ›Tank cooling‹.

›1.5.5 Cooling funct.‹ appears.

This option must be activated if,
during a heat wave, the heat input
exceeds the energy withdrawal.

In this case, the controller cools the
tank via the collectors, e. g. at night.

Return to ›1.5 Protective functions‹.

Continue with ›Soft charge‹.

›1.5.6 Soft charge‹ appears.

This option should be activated if an
extended spell of hot, sunny weath­er is to be expected. Thus, the heat
input in the tank is reduced.

Return to ›1 Main menu‹.

Continue with ›Monitoring‹.

Activation

1.5.2 Defrosting

25.08.2012 10:29

Activation

1.5.5 Cooling funct.

25.08.2012 10:29

Activation

1.5.6 Soft charge

25.08.2012 10:29

76

Operation mode

›1.6 Monitoring‹ appears.

Here, the error list can be called up.
The required information
appears on the display.

Return to ›1 Main menu‹.

Continue with ›Login‹.

›1.8 AQA solar‹ appears.

This menu is only occupied if the soft
water station ›AQA solar‹ made by
BWT is integrated in the fresh water
heating.

For appropriate information,
please refer to the documentation
by BWT / regarding AQA solar.

Return to ›Main menu‹.

Continue with ›About smart Sol‹.

›1.7 Login‹ appears.
Here, the tter can enter his/her ac-

cess code to perform further settings
and changes.

Return to ›1 Main menu‹.

Continue with ›AQA solar‹.

Error list

1.6 Monitoring

25.08.2012 10:29

Access code

0

1.7 Login

25.08.2012 10:29

Soft water

Flow rate
Soft water delivery

recent regeneration

Salt consumption

421l/h

317m3

24.08.2012 09:00

66g

1.8 AQA solar

25.08.2012 10:30

77

Operation mode

›1.9 About‹ appears.

Here, the software and hardware
version of the controller, the
serial number and the date of
commissioning appear.

This information is required for
repairs and for version management.

If no entry is made within the
preset time (30 - 255 s) on the
smart Sol plus, the display returns
to ›System‹.

›esc‹ is used to return to the home
screen from every menu.

smartSol
SW version
HW version
Serial number
Commissioning

11.42

3.01

16009

24.08.2012

1.9 About

25.08.2012 10:30

System 11

25.08.2012 10:31

78

Malfunction

The screen on top right shows
the ›Attention‹ symbol which
points out a notication or an
operating malfunction.

Select via ›OK‹.

If ›Safety function‹ appears in
the display, this is a message,
no malfunction.

In this case, there is no deciency,
but limits have been exceeded.

The controller indicates that a
protective function has been
triggered.

The message is only active until
normal operation has been restored.

Note!

If a malfunction message appears in the display, the operator

can dene the possible causes by means of the Service Wizard
so that he/she can provide the tter with precise information.

System 11

25.08.2012 10:32

Safety function

Solar circuit

emergency cut-off

1.10 Service Wizard

25.08.2012 10:32

79

Malfunction

›1.10 Service Wizard‹ appears.

The malfunction appears in plan text

- here:

›M02: Breakage of sensor on TS1!‹.

If an analysis/repair is not
required at present, press ›Menu‹
to return to the main menu.

Danger!

Mortal danger due to electrocution!
For troubleshooting on the plant, disconnect all poles of the power
supply reliably and protect it them against being switched on again!

The differential temperature controller smart Sol plus communicates malfunction
processes in plain text. The Service Wizard indicates the possible causes of
malfunctions on the basis of the detected symptoms and thus supports

immediate and comfortable detection of deciencies.
There may be various deciencies in a solar thermal system, which require

a wide variety of approaches. The controller communicates every step to
the operator or tter via the screen, so that there is no need to describe
all malfunctions in detail in this operating manual.

Here, a malfunction message with troubleshooting process is presented as an example.

M02:
Breakage of
sensor on TS1!

Menu Next

1.10 Service Wizard

25.08.2012 10:33

80

Malfunction

The controller here provides the trou­bleshooting instruction to check the
connection cable.

Perform the measure in accordance
with the recommendation.

Acknowledge by pressing ›Next‹.

For this malfunction, the following
causes are assumed:
›Cable/connection‹ or ›Sensor‹ -

select the rst menu item and
conrm by pressing ›OK‹.

The Service Wizard helps detect
possible causes of malfunctions.

Acknowledge by pressing ›Next‹.

M02:
Breakage of
sensor on TS1!
Menu Next

1.10 Service Wizard

25.08.2012 10:33

Possible reasons:

Cable/connection

Sensor

Exit

1.10 Service Wizard

25.08.2012 10:33

Please check the
connection cable
to the sensor.

Next

1.10 Service Wizard

25.08.2012 10:33

81

Malfunction

Repair information appears.

Perform the appropriate repair work.

Exit the ›Service Wizard‹
by pressing ›Exit‹.

More detailed instructions
are available if required.

Acknowledge by pressing ›Next‹.

The troubleshooting
result is interrogated.

Continue via ›Yes‹ for the case that
the malfunction has been determined.

Disconnect it
and measure
its resistor.

Next

1.10 Service Wizard

25.08.2012 10:33

Could you detect
a short-circuit /
cable break?
No Yes

1.10 Service Wizard

25.08.2012 10:33

Please replace
the cable.

Exit

1.10 Service Wizard

25.08.2012 10:33

82

Malfunction

Appropriate instructions appear
for each source of faults.

Perform the measure in accordance
with the recommendation.

Continue with ›Explanation‹.

If the cause of the malfunction
has not yet been determined,
troubleshooting can be continued.

Continue with ›No‹.

Select all the sources of malfunctions

listed, and conrm via ›OK‹.

Could you detect
a short-circuit /
cable break?

No Yes

1.10 Service Wizard

25.08.2012 10:33

Possible reasons:
Cable/connection

Sensor

Exit

1.10 Service Wizard

25.08.2012 10:34

Please check
the sensor for
plausible values.

Explanation

1.10 Service Wizard

25.08.2012 10:34

83

Malfunction

After description of the troubleshoot­ing measure, the result determined by
you is interrogated...

A part of the information and
instructions may be provided
in close detail, so that ...

...the texts may well
take several screens.

Disconnect it
and measure
its resistor.

Next

1.10 Service Wizard

25.08.2012 10:34

With PT 1000 sensors
0°C to 100°C
correspond to
a resistor of
1000 to 1385 Ohm.
Is your measured
value within

1.10 Service Wizard

25.08.2012 10:34

correspond to
a resistor of
1000 to 1385 Ohm.
Is your measured
value within

Yes

No

1.10 Service Wizard

25.08.2012 10:34

84

Malfunction

... and the appropriate logical
conclusion is made, the repair
work displayed.

After elimination of the malfunction,
the plant screen without the
›Attention‹ symbol appears
again on the display,
automatic mode is continued.

Sensor is faulty and
must be replaced.

Exit

1.10 Service Wizard

25.08.2012 10:34

System 11

25.08.2012 10:38

85

Replacement of fuse

To remove the device fuse, open the terminal cover.
Above the right-hand group of terminals, the fuse base and a spare fuse are
located. Pull the upper part of the support and the spare part out.
The fuse link is clamped in the formed piece and is removed together with the plastic
holder.

Now, push the micro-fuse laterally out of its holder.
The fuse link is installed by reversing the above order.
Make sure to procure yourself immediately a new spare fuse!

Danger!

Mortal danger due to electrocution! Before opening
the terminal cover, disconnect the power supply reliably!

Danger!

Risk of re due to overload or short-circuit!
Only use fuse links type 5 x 20 mm, T4A!

86

Professional mode

Important!

In professional mode, settings are made which require detailed
knowledge of the heating and solar plant.
Moreover, solid specialist knowledge regarding control
engineering, hydraulics and solar thermal water heating is required!

If a single parameter is changed, this may affect the safety,

function and efciency of the entire plant!

Leave the settings in professional mode to a

specialist workshop, the tter or heating installer!
Modications by non-experts tend to result in damage to

the plant, rather than to an improvement of its efciency!

To enter the professional mode, select
›1.7 Login‹ from the main menu,
activate and ...

... enter the access code.

The access code to
professional mode is ›365‹.

The fact that the tter must be
available for his/her customers
on 365 days per year may serve
as a mnemonic trick.

Access code

0

1.7 Login

25.08.2012 10:29

Access code

Restore last value

Factory settings

365

Edit

25.08.2012 10:31

87

Professional mode

After having returned to ›1 Main
menu‹,the screen shows a list of
subitems as in operation mode.

The menu ›1.1 Evaluation‹ is
identical to the operating mode.

The following items appear under
›1.2. Settings‹ next to the operation
mode menus:

- ›Temp. limitation‹

- ›Max.temp.shutoff‹

- ›Min. temperature‹

- ›Priority charging‹

Call up menu item ›Temp. limitation‹.

Evaluation

Settings
Basic functions

Efciency functions

Protective funct.
Monitoring
Login

1 Main menu

25.08.2012 10:32

Measured values

Service hours
CO2 savings
Heat quantities
Error list

1.1 Evaluation

25.08.2012 10:32

Date/Time

Language
Display
Tank temp.limitation
Max.temp.shutoff
Min.temperature
Remove SD card safely

1.2 Settings

25.08.2012 10:33

88

Professional mode

If the temperature in tank 1 exceeds
the value T limit 1, or if the temper­ature in tank 2 exceeds the value
T limit 2, the solar circuit pump is
switched off unconditionally.

The pump is not switched on again
until the actual temperature falls be­low the value T limit by the hysteresis
›Hyst‹.

Example: T limit =60°C minus Hys­t=5K => Reclosing temperature 55°C.

Continue via the menu
item ›Max.temp.shutoff‹.

Maximum temperature of the tanks 1
and 2, to avoid excessively hot water
in the tank; the tank in question is
only charged to its ›T max‹.

In case of collector overheating, the
tank can be charged up to ›T-limit‹.

Continue via the menu item
›Min. temperature‹.

To increase efciency on charging
the tanks, the minimum temperature
to be present at the collector in
question is entered via ›T min. Coll‹.

The relevant hysteresis value
represents the difference
between the switch-ON
and switch-OFF temperature.

Continue via the
menu item ›Priority charge‹.

Hysteresis

T limit 1
T limit 2

If T-limit>60°, anti-scalding

protection must be installed.

5.0K

60.0°C

60.0°C

1.2.3 Temp.limitation

25.08.2012 10:34

T max.tank 1

T max.tank 2

59.0°C

59.0°C

1.2.5 Max.temp.shutoff

25.08.2012 10:34

Activation

T min.Collector 1
Hyst. Collector 1

20.0°C

2.0K

1.2.6 Min. temperature

25.08.2012 10:34

89

Professional mode

In case of dual-tank systems, the tank
to be charged rst is dened: tank 1,
tank 2 or parallel charging.

›t pause‹ is used to set the pause
time between twot switch-ON tests.

›t charge‹ serves to dene the
charging time for the secondary tank.

Once ›dT Coll‹ is reached,
the pause time is restarted.

Continue with ›Basic functions‹.

The following items appear under
›1.3. Basic functions‹ next to the
operation mode menus:

- ›Thermostat‹

- ›Output parameter‹

- ›Collector cooling‹

- ›Post Heating Requ. ...

... and enhanced menus regarding the

- ›Holiday function‹

- ›Delta T control‹

- ›Fixed T control‹

- ›Increase return T‹

Call up the menu item ›Thermostat‹.

Priority

Pause time
Charge time
dT Collector

Tank 1

2min

20min

2.0K

1.2.8 Priority charging

25.08.2012 10:34

Thermostat

Output parameter
Tube collector
Holiday function
Collector cooling
Commissioning
Delta T control

1.3 Basic functions

25.08.2012 10:35

Holiday function
Collector cooling
Commissioning
Delta T control
Fixed T control
Post Heating Request

Increase return T

1.3 Basic functions

25.08.2012 10:35

90

Professional mode

If outputs on the controller are not
assigned, these channels can be
used as thermostats.

Here, the appropriate
channel is selected.

For the heating function,
T ON must be < T OFF.
For the cooling function,
T ON must be > T OFF.

Up to four time slots can be assigned
to each thermostat function.
Dene times for activation
and deactivation.

Continue via the menu item
›Output parameter‹.

Perform activation.
Dene the start signal.

Depending on the selection of ›Start‹,
the following parameters are shown.

The output has already been dened
by the selection - the related sensor

remains to be dened.
Dene switch-ON/OFF temperature.

Continue to scroll.

Thermostat RO3

Thermostat RO4

1.3.1 Thermostat

25.08.2012 10:35

Activation

Start

Sensor
Output
T ON
T OFF

Timer,thermostat

---

RO3

0.0°C

0.0°C

1.3.1 Thermostat RO3

25.08.2012 10:35

t ON 1
t OFF 1
t ON 2
t OFF 2
t ON 3
t OFF 3

t ON 4

00:00

00:00

00:00

00:00

00:00

00:00

00:00

1.3.1 Thermostat RO3

25.08.2012 10:35

91

Professional mode

Here, the general settings for the

assigned outputs are dened.
›t tear-off‹ and ›n tear-off‹ dene

how long and at which speed the
pumps are to run on starting.

Select an output...

60

50

40

30

20

10

0

2 4 6 8 10 12 14

Speed in %

Temperature difference in K

Note!

The ›Speed delta‹ parameter denes the speed change for step control.

Speed is adjusted by each set value by changing the temperature.

Step control is either selected in the ›1.3.5 dT control‹ menu or in the
›1.3.6 Fixed T control‹ menu.

Parameters for the following sample diagram:
n-min = 30% / n-max = 100% / algorithm = dT (menu 1.3.7) /
dT 1 = 2.0K / dT-on 1 = 5.0K / dT-target 1 = 10.0K /
control 1 = stepped (menu 1.3.5) / speed delta = 10% (menu 1.3.7).

Solar pump 1

Solar pump 2
Boiler
Thermostat RO3
Time for tear-off
Speed for tear-off
Speed delta

10s

100%

10%

1.3.7 Output parameter

25.08.2012 10:35

92

Professional mode

To receive correct measured values
from the tube collector system, the

pump must be switched ON briey.

By activation of the function, the
solar circuit pump can be started
time- and/or temperature-controlled.

The time sequence,
the pump ON time and ...

...to dene the required control
algorithm as ›dT‹ or ›Fixed T‹.

In case of plants with long piping or
slow response, overtravel times for
the solar circuit, pump and valve can
be determined.

Continue to menu item
›Tube collector‹.

... the pump delivery rate as a
percentage value can be entered.

The two time programs are
performed one after the other.

Continue via the menu item
›Holiday function‹.

Algorithm, output control

Overtravel time
min. pump speed
max. pump speed

dT

0s

50%

100%

1.3.7 Output parameter

25.08.2012 10:35

Activation

Start
t-ON restart
T-ON restart
t solar 1
n solar 1
t solar 2

time-dependent

10min

20.0°C

20s

100%

0s

1.3.2 Tube collector

25.08.2012 10:35

T-ON restart
t solar 1
n solar 1
t solar 2
n solar 2
Start time

End time

20.0°C

20s

100%

0s

30%

06:00

20:00

1.3.2 Tube collector

25.08.2012 10:35

93

Professional mode

Under ›Recooling‹, determine whether
cooling is to be effected down to
›T min tank‹ or ›T max tank‹.

Under ›n pump‹ set the
pump speed in percent.

Enter the hysteresis value by ›Hyst‹.

If necessary, activate ›Soft charging‹
›dT‹ is used to dene the switch-ON

temperature for the holiday function
as a difference from the preset
maximum temperature of the tank.

Continue to scroll.

To avoid overheating of the plant,
the controller will suppress yield
optimization while the holiday
function is activated.

The time frame of the holiday function

is mostly dened in operation mode.

If tank cooling is activated, an
appropriate time frame must be

dened - this makes sense during the

cooler hours of the night - by allowing
the controller to dissipate as much
energy as possible via the collectors.

Continue to scroll.

Start of holiday

End of holiday

Tank cooling
Start
End

19.07.2013

02.08.2013

00:00

07:00

1.3.3 Holiday function

25.08.2012 10:35

Re-cooling

n pump
Hyst.
Soft charge

dT

T-min tank

100%

5.0K

5.0K

1.3.3 Holiday function

25.08.2012 10:35

94

Professional mode

Via ›T-min tank 1‹ and
›T-min tank 2‹, specify the
minimum temperature required
for the tank in question.

Select whether the ›Priority tank‹
or the ›Secondary tank‹ are to be
cooled.

Continue via the menu item
›Collector cooling‹.

Here, collector cooling is activated:
once the collector temperature
›T max. Coll. 1‹, or ›T max. Coll. 2‹ is
reached, the appropriate solar circuit
pump continues to operate until the
tank limit temperature is reached.

To protect the pump, the collector
emergency switch-off in solar circuits

with high-efciency pumps is reduced

to 100°C. Collector cooling is not
possible at higher temperatures!

Return to ›1.3. Basic functions‹.

Continue with ›Commissioning‹.

Here, new commissioning
can be started - e. g. if a new
hydraulic system is to be selected.

=> ›Commissioning mode‹
as of page 61.

Continue with ›Delta T control‹.

Hyst
Soft charge
dT
T min.tank1
T min.tank2

Tank

5.0K

5.0K

45.0°C

45.0°C

Priority tank

1.3.3 Holiday function

25.08.2012 10:35

Activation

T max.Collector 1

121.0°C

1.3.4 Cooling funct.

25.08.2012 10:36

You really want to
start commission.?

No Yes

0 Welcome

25.08.2012 10:36

95

Professional mode

If control algorithms have been

dened as ›dT‹ under ›1.3.7 Output

parameter‹, the appropriate outputs

can be congured here.

Via ›dT ON‹, the switch-ON
temperature, via ›dT OFF‹, the
switch-OFF temperature and via
›dT targ.‹, the target differential
temperature are set. (Differential
temperature between collector
and tank, bottom).

Continue with ›Fixed T control‹.

If control algorithms have been
dened as ›Fixed T‹ under ›1.3.7
Output parameter‹, the appropriate

outputs can be congured here.
In case of the xed temperature

control, the collector is controlled to
the preset temperature via a variable
pump delivery rate.

Continue with ›Post Heating Request‹.

Note!

The ›dT targ.1‹ parameter is displayed in the

›1.3.5 dT control‹ menu for systems with 2 collector elds.

With ›dT targ.1‹ the maximum temperature

difference between both collector sensors is specied.
Once this value is exceeded, the pump of the „colder“ collector eld

is deactivated in order to increase efciency.

Activation dT 1

dT 1
dT-ON 1
dT-OFF 1
dT targ.1
Contl 1

2.0K

8.0k

4.0k

10.0K

step-wise

1.3.5 dT control

25.08.2012 10:37

Control 2

Variant 2

T-xed 2

step-wise

70.0°C

1.3.6 Fixed temp.cont...

25.08.2012 10:37

96

Professional mode

Here, reheating can be activated.

The boiler is dened as ›Solid-fuel

boiler‹ or ›Gas/oil‹.

In case of solid-fuel boilers reheating
is made via the charge pump of the
drinking water tank and is only
activated if the temperature of the
tank is within the values ›Min. temp.‹
und ›Max. temp.‹.

Use ›Boiler sensor‹ to assign the
temperature sensor which supplies
the temperature value of the boiler.

Up to six time blocks can
be activated for reheating.

›Ref. temp.‹ is used to dene the set
temperature at the top tank sensor.

If the temperature falls below ›Ref.
temp.‹ by ›Hysteresis‹, the control
activates the reheating cycle via the
heating boiler until ›Ref. temp.‹ is
reached.

Each period can be dened with

›Weekends‹, Monday - Sunday‹ or
›Monday - Friday‹.

Continue with ›Efciency functions‹.

Activation

Reference temperature
Starting time
End time
Time period

45.0°C

00:00

23:59

Daily

1.3.10 Post Heating R...

25.08.2012 10:37

Activation

Boiler type

Hysteresis
Minimum temperature
Maximum temperature
Sensor boiler

Solid fuel boiler

10.0K

40.0°C

55.0°C

TS6

1.3.10 Post Heating R...

25.08.2012 10:37

Sensor boiler
Time block 1
Time block 2
Time block 3
Time block 4
Time block 5

Time block 6

TS6

1.3.10 Post Heating R...

25.08.2012 10:37

97

Professional mode

The following items appear under
›1.4. Efciency funct.‹ next to
the operation mode menus:

- ›Low-Flow‹

- ›Quick-charging‹

- ›Efcient tank-charge‹

Call up menu item ›Low-Flow‹.

Tank quick charging changes over

from dT control to xed temperature

control.
›T ON‹ and ›T OFF‹ dene the

change-over range and ›T targ. Coll.‹

the xed temperature on the collector.

An upper tank sensor is
required for quick-charging.

Continue with ›Disable recharge‹.

Here, the switch-ON temperature

can be dened for low-ow plants.

Continue with ›Quick-charging‹.

Low-Flow

Quick-charging
Disable recharge

Efcient tank-charge

1.4 Efficiency functions

25.08.2012 10:38

Activation

T ON

60.0°C

1.4.1 Low-Flow

25.08.2012 10:38

Activation

Sensors
T ON
T OFF
Collector target temp.

---

48.0°C

52.0°C

70.0°C

1.4.2 Quick-charging

25.08.2012 10:38

98

Professional mode

If the plant has been designed accord­ingly and a system involving disable
recharge selected, the appropriate
parameters are set here.

Here, the time control and/or the
temperature control are activated ­possible for all systems with heating
boiler control.

Time and temperature control
can be used in combination.

Select the time slot
via ›Start‹ and ›End‹.

Select the minimum temperature
via ›T min tank‹.

Here, the efciency-optimized disable
recharge is enabled and activated -
possible for all systems with heating
boiler control.

Set ›factor 1‹.

Factor 1 assesses solar yield,
factor 2 assesses comfort.

By reducing factor 1, the expected
solar input gets a higher weighting.

Set ›factor 2‹.

Reducing factor 2 will
decrease comfort.

Determine under ›T oating‹ whether
the temperature is to be measured
on the upper or lower tank sensor.

Enter the minimum tank temperature
via ›T min tank‹.

Continue with ›Efcient tank-charge‹.

Activate time program

Start
End
Activat, T-min
T min. tank

Activat.Tmin oat

00:00

00:00

45.0°C

1.4.3 Disable recharge

25.08.2012 10:39

Factor 1

Factor 2
T target

T oating

T min. tank

4.0

2.0

45.0°C

upper tank sensor

45.0°C

1.4.3 Disable recharge

25.08.2012 10:39

99

Professional mode

The following items appear under
›1.5. Protective funct.‹ next
to the operation mode menus:

- ›Anti-Blocking‹

- ›Anti-legionellae‹

- ›Antifreeze protection‹

Call up menu item ›Anti-Blocking‹.

›Efcient tank charge‹ is
activated and congured here.

The solar circuit pump is controlled
according to the entered heat
quantity. In order to use this
functionality, a heat quantity counter

must be congured in the solar circuit

(=> ›1.1.4 Heat quantities‹ menu).

The ›t delay after t. change‹
parameter denes the time
between two speed changes.
Once the waiting time has expired,
the speed of the solar pump is
increased or decreased by 10%.

With the ›Performance delta‹
parameter, the additional yield
which is necessary during the waiting
time for the pump speed to change
accordingly is set .

Return to ›Main menu‹.

Continue with ›Protective funct.‹.

Activation

t delay after t. change
Performance delta

4.5min

100W

1.4.4 Efficient tank ch...

25.08.2012 10:39

Anti-blocking

Collector defrosting
Antifreeze protection
Anti-legionellae
Tank cooling
Soft charge

1.5 Protective funct.

25.08.2012 10:40

100

Professional mode

›Defrosting‹ can be used
to heat frozen collectors.

At the same time, the tank is cooled!

Set the pump runtime.

Continue with ›Antifreeze protect.‹.

The pumps can be moved daily to
prevent them from getting blocked.

This function is not activated as long
as the pumps are activated in normal
operation.

Determine the time of the
day and the operating period.

Continue with ›Collector defrost.‹.

Start

Duration

11:00

5s

1.5.1 Anti-block protect.

25.08.2012 10:40

Activation

Max. pump t defrosting

5min

1.5.2 Defrosting

25.08.2012 10:41