Resol DeltaSol SLL Owner's manual

Thank you for buying this RESOL product.
Please read this manual carefully to get the best performance from this unit.
Please keep this manual safe.
DeltaSol® SLL
www.resol.com
Manual
en
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

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en
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.
ÎMake 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!
ÎThey 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.
ÎArrows 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 environmen-
tally sound disposal of the devices.
© 20160408_11205585_DeltaSol_SLL.monen

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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

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1 Overview
• 3 relay outputs (incl. 1 extra-low voltage relay)
• 4 inputs for Pt1000, Pt500 or KTY temperature sensors
• 1V40 impulse input
• 2 PWM outputs for speed control of high-efciency pumps
• 10 basic systems to choose from
• Automatic function control according toVDI 2169
110
166 130
47
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 toVDI 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

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InstallationIndications, functions and optionsMessages Commissioning Operation and function
2 Installation
2.1 Mounting
WARNING! Electric shock!
Upon opening the housing, live parts are exposed!
ÎAlways disconnect the controller from power supply
before opening the housing!
Note
Strong electromagnetic elds can impair the function of the controller.
ÎMake 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:
ÎUnscrew the crosshead screw from the cover and remove it along with the
cover from the housing.
ÎMark the upper fastening point on the wall. Drill and fasten the enclosed wall
plug and screw leaving the head protruding.
ÎHang the housing from the upper fastening point and mark the lower fastening
points (centres 130mm).
ÎInsert lower wall plugs.
ÎFasten the housing to the wall with the lower fastening screw and tighten.
ÎCarry out the electrical wiring in accordance with the terminal allocation (see
chap. 2.2).
ÎPut the cover on the housing.
ÎAttach with the fastening screw.
2.2 Electrical connection
WARNING! Electric shock!
Upon opening the housing, live parts are exposed!
ÎAlways disconnect the controller from power supply
before opening the housing!
ATTENTION! ESD damage!
Electrostatic discharge can lead to damage to electronic
components!
ÎTake 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 con-
nected 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)

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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
VBus
V40
S4 S3
GND
DeltaSol® SLL
Made in Germany
Sensors
S2 S1
100 ... 240V
T2A
50-60 Hz
N
R2 R1
L
R1-R2|1 (1) A 240V~
R4|1 (1) A 30V
IP 20
R4 PWMA PWMB
R4
NN 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 termi-
nals 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 RESOLVBus®/USB orVBus®/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.

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InstallationIndications, functions and optionsMessages Commissioning Operation and function
2.4 System overview
1
Solar system with 1 store (page 8)
5
Solar system with 2 stores and
valve control (page 12)
9
Solar system with 1 store and
return preheating (page 16)
2
Solar system with 2 stores and
heat exchange (page 9)
6
Solar system with 2 stores and
pump control (page 13)
10
Solar system with 1 store and
heat dump (page 17)
3
Solar system with 1 store and
afterheating (page 10)
7
Solar system with east-/west
collectors (page 14)
4
Solar system with 1 store and 3-port valve
for store loading in layers (page 11)
8
Solar system with 1 store and
solid fuel boiler (page 15)

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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
S2
R1
S1
VBus
VBus
V40
S4 S3
GND
Sensors Relais
S2 S1
N
R2 R1
L
R4 PWM A PWM B
R4
NNNN
R2 R1 L
1234
56789
10 11
332 2
Mains

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InstallationIndications, functions and optionsMessages Commissioning Operation and function
System 2: Solar system with 2 stores and heat exchange
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.
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
NNNN
10 11
2332 2 2 3
R2
R1
S3
S2
S1
S4
VBus
VBus
V40
S4 S3
GND
Sensors Relais
S2 S1
N
R2 R1
L
R4
R4
R2 R1 L
1234
56789
PWM A PWM B
Mains

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Installation Indications, functions and options MessagesCommissioningOperation and function
System 3: Solar system with 1 store and afterheating
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.
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
R1
S2
S1
R2
R4
NNNN
10 11
332 2 2 3
2
S3
VBus
VBus
V40
S4 S3
GND
Sensors Relais
S2 S1
N
R2 R1
L
R4
R4
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
R4 Afterheating demand R4 / R4
Mains

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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
R2
R1 S3
S2
S1
NNNN
10 11
332 2 2 3
VBus
VBus
V40
S4 S3
GND
Sensors Relais
S2 S1
N
R2 R1
L
R4
R4
R2 R1 L
1234
56789
PWM A PWM B
Mains
Flow direction when
normally open

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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
NNNN
10 11
2332 23
R2
R1
S4S2S2
S1
VBus
VBus
V40
S4 S3
GND
Sensors Relais
S2 S1
N
R2 R1
L
R4
R4
R2 R1 L
1234
56789
PWM A PWM B
Mains
Flow direction when
normally open

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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 ad-
justed switch-on temperature differences, the pump (R1 and/or R2) will be activat-
ed 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
S4
S2
S1
NNNN
10 11
2332 23
VBus
VBus
V40
S4 S3
GND
Sensors Relais
S2 S1
N
R2 R1
L
R4
R4
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

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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
S2
S1 S4
NNNN
10 11
332 2 3
2
VBus
VBus
V40
S4 S3
GND
Sensors Relais
S2 S1
N
R2 R1
L
R4
R4
R2 R1 L
1234
56789
PWMA PWMB
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
R2
Solar pump collector 2 R2 / N / PE
R4 Free R4 / R4
Mains

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InstallationIndications, functions and optionsMessages Commissioning Operation and function
System 8: Solar system with 1 store and afterheating with solid fuel boiler
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.
With another temperature differential function (S4 heat source/S3 heat sink), after-
heating of the store with a solid fuel boiler can be carried out via another pump (R2).
System 8 system screen
NNNN
10 11
332 2 2 3
2
R2
R1
S4
S3
S2
S1
VBus
VBus
V40
S4 S3
GND
Sensors Relais
S2 S1
N
R2 R1
L
R4
R4
R2 R1 L
1234
56789
PWMA PWMB
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

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Installation Indications, functions and options MessagesCommissioningOperation and function
System 9: Solar system with 1 store and return preheating
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.
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
NNNN
10 11
2332 2 2 3
VBus
VBus
V40
S4 S3
GND
Sensors Relais
S2 S1
N
R2 R1
L
R4
R4
R2 R1 L
1234
56789
PWMA PWMB
R2
S4
S3
S2
S1
R1
Mains
Flow direction when
normally open

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InstallationIndications, functions and optionsMessages Commissioning Operation and function
System 10: Solar system with 1 store and heat dump
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.
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
NNNN
10 11
332 23
R2
R1
S2S2
S1
VBus
VBus
V40
S4 S3
GND
Sensors Relais
S2 S1
N
R2 R1
L
R4
R4
R2 R1 L
1234
56789
PWM A PWM B
Mains
Flow direction when
normally open

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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 slida-
ble 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
3
2
VBus
VBus
V40
S4 S3
GND
DeltaSol® SLL
Made in Germany
Sensors
S2 S1
100 ... 240V
T2A
50-60 Hz
N
R2 R1
L
R1-R2|1 (1) A 240V~R4|1 (1) A 30V
IP 20
R4 PWMA PWMB
R4
NN N N
R2 R1 L
1234
56789
10 11
Note
For more information about relay control, see page 42.

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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:
ÎPress 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.
ÎIn 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.

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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.
ÎIn order to access the sub-menu of the option, select the option by turning the
Lightwheel®and press the right button (✓) .
ÎIn order to activate an option, select ON. In order to deactivate it, select OFF.
The adjustment channels are characterised by the indication Ⓢ.
ÎSelect the desired adjustment channel by turning the Lightwheel®.
ÎCon rm your selection with the right button (✓). Ⓢstarts flashing (ad-
justment mode).
ÎAdjust the value by turning the Lightwheel®.
ÎCon rm your selection with the right button (✓). Ⓢpermanently appears,
the adjustment has been saved.
BACK PUSH appears as the last display.
ÎIn 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 can-
celled 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:
ÎSelect the desired value and press the right button(✓). Ⓢstarts flashing.
ÎTurn the Lightwheel®anticlockwise.
The value is set back to 0.
ÎPress the right button(✓).
The message DEL will be displayed.
ÎTurn the Lightwheel®clockwise.
YES instead of NO will be displayed.
ÎCon 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 (⟲).