ISA LVLO User manual

LVLØ – SERVICE MANUAL
LVLØ Hassle Free Pool Technology

SERVICE MANUAL
© ISA, s.r.o. 2014-2015. All rights reserved.
We reserve the right to change the specification without prior notification.
Always check for new version of this document@ www.LVL0.eu
Service manual V1.08 | Nov-2015 | LM0002-EN
Page 2 of 97

SERVICE MANUAL
© ISA, s.r.o. 2014-2015. All rights reserved.
We reserve the right to change the specification without prior notification.
Always check for new version of this document@ www.LVL0.eu
Service manual V1.08 | Nov-2015 | LM0002-EN
Page 3 of 97
Contents
1Safety information......................................................................................................................................8
1.1 Safety instructions.............................................................................................................................8
1.2 Information for electrically skilled persons......................................................................................8
1.3 Notice.................................................................................................................................................9
2Overview ...................................................................................................................................................10
2.1 LVLØ – Ultimate Pool Controller.....................................................................................................10
2.2 Hardware overview .........................................................................................................................10
2.2.1 LVLØ Controller – outside components layout .........................................................................10
2.2.2 LVLØ Controller – connector board layout................................................................................11
2.3 Overview of features.......................................................................................................................12
2.3.1 Operation ....................................................................................................................................12
2.3.2 Measuring and control ...............................................................................................................12
2.3.3 Safety functions ..........................................................................................................................13
2.3.4 Functions .....................................................................................................................................13
2.3.5 Connectivity and remote access ................................................................................................14
2.3.6 Interfaces.....................................................................................................................................14
3Installation and Configuration .................................................................................................................15
3.1 Mounting instructions.....................................................................................................................15
3.1.1 LVLØ Controller...........................................................................................................................15
3.2 Getting connected...........................................................................................................................17
3.2.1 Wire routing ................................................................................................................................17
3.2.2 Main Breaker –Residual Current Circuit Breaker iID (RCCB) ...................................................18
3.2.3 Main Power .................................................................................................................................19
3.2.4 Power extension .........................................................................................................................19
3.2.5 Power connection options .........................................................................................................19
3.3 Basic setup .......................................................................................................................................20
3.3.1 Overview .....................................................................................................................................20
3.3.2 Configuration ..............................................................................................................................20
3.3.3 KNX communication objects ......................................................................................................21
3.4 Bottom drain recirculation..............................................................................................................22
3.4.1 Overview .....................................................................................................................................22
3.4.2 Electrical connection ..................................................................................................................22
3.4.3 Configuration ..............................................................................................................................22
3.5 Filtration...........................................................................................................................................23
3.5.1 Overview .....................................................................................................................................23
3.5.2 Electrical connection ..................................................................................................................23

SERVICE MANUAL
© ISA, s.r.o. 2014-2015. All rights reserved.
We reserve the right to change the specification without prior notification.
Always check for new version of this document@ www.LVL0.eu
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3.5.3 Configuration ..............................................................................................................................27
3.5.4 KNX communication objects ......................................................................................................28
3.6 Flow switch ......................................................................................................................................28
3.6.1 Overview .....................................................................................................................................28
3.6.2 Electrical connection ..................................................................................................................29
3.6.3 Configuration ..............................................................................................................................29
3.7 AUX –Two auxiliary outputs ...........................................................................................................29
3.7.1 Overview .....................................................................................................................................29
3.7.2 Electrical connection ..................................................................................................................30
3.7.3 Configuration ..............................................................................................................................32
3.7.4 AUX control via integrated switches and “AUX button” inputs ...............................................32
3.7.5 KNX communication objects ......................................................................................................33
3.8 Lights ................................................................................................................................................34
3.8.1 Overview .....................................................................................................................................34
3.8.2 Electrical connection ..................................................................................................................34
3.8.3 Configuration ..............................................................................................................................34
3.8.4 KNX communication objects ......................................................................................................35
3.9 Pool cover and pool cover drain.....................................................................................................35
3.9.1 Overview .....................................................................................................................................35
3.9.2 Electrical connection ..................................................................................................................35
3.9.3 Configuration ..............................................................................................................................36
3.9.4 KNX communication objects ......................................................................................................37
3.10 Water treatment .............................................................................................................................37
3.10.1 Overview.................................................................................................................................37
3.10.2 Values pH, ORP, Free chlorine ...............................................................................................37
3.10.3 Values algaecide and flocculants...........................................................................................38
3.10.4 Dosing pumps assignment and flow rate..............................................................................38
3.10.5 Calibration pH.........................................................................................................................40
3.10.6 Calibration ORP ......................................................................................................................40
3.10.7 Free chlorine measurement ..................................................................................................40
3.10.8 Redox/ORP and CLF Electrode settings.................................................................................41
3.10.9 Chemicals settings..................................................................................................................41
3.10.10 KNX communication objects..................................................................................................42
3.11 Backwash valve................................................................................................................................42
3.11.1 Overview.................................................................................................................................42
3.11.2 Electrical connection of multi-port valve (6-way) ................................................................43
3.11.3 Electrical connection of push-pull valve (e.g. Besgo)...........................................................44

SERVICE MANUAL
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3.11.4 Backwash using multi-port valve (6-way) .............................................................................44
3.11.5 Backwash using push-pull valve (5-way)...............................................................................45
3.11.6 KNX communication objects..................................................................................................46
3.12 Water temperature measurement.................................................................................................47
3.12.1 Overview.................................................................................................................................47
3.12.2 Electrical connection..............................................................................................................47
3.12.3 KNX communication object ...................................................................................................47
3.13 Outside temperature measurement ..............................................................................................48
3.13.1 Overview.................................................................................................................................48
3.13.2 Electrical connection..............................................................................................................48
3.13.3 KNX communication objects..................................................................................................49
3.14 External heating system temperature measurement ...................................................................49
3.14.1 Overview.................................................................................................................................49
3.14.2 Electrical connection..............................................................................................................50
3.14.3 KNX communication objects..................................................................................................50
3.15 Heating and cooling.........................................................................................................................50
3.15.1 Overview.................................................................................................................................50
3.15.2 Electrical connection..............................................................................................................51
3.15.3 Configuration..........................................................................................................................51
3.15.4 KNX communication objects..................................................................................................52
3.16 Make up water - filling ....................................................................................................................53
3.16.1 Overview.................................................................................................................................53
3.16.2 LVLØ electro-optic level switch ............................................................................................53
3.16.3 Electrical connection..............................................................................................................54
3.16.4 Configuration..........................................................................................................................54
3.16.5 KNX communication objects..................................................................................................55
3.17 Buffer tank .......................................................................................................................................55
3.17.1 Overview.................................................................................................................................55
3.17.2 Mounting the ultrasonic sensor ............................................................................................55
3.17.3 Electrical connection..............................................................................................................57
3.17.4 Configuration..........................................................................................................................58
3.17.5 KNX communication objects..................................................................................................59
3.18 Additional technology .....................................................................................................................60
3.18.1 Overview.................................................................................................................................60
3.18.2 Salt electrolysis.......................................................................................................................61
3.18.3 UV lamp ..................................................................................................................................62
3.18.4 Ozone generator ....................................................................................................................63

SERVICE MANUAL
© ISA, s.r.o. 2014-2015. All rights reserved.
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3.18.5 Heating pump.........................................................................................................................64
3.19 Service intervals...............................................................................................................................66
3.19.1 Overview.................................................................................................................................66
3.19.2 Configuration..........................................................................................................................66
3.19.3 KNX communication objects..................................................................................................66
3.20 Email alerts ......................................................................................................................................67
3.20.1 Overview.................................................................................................................................67
3.20.2 Configuration..........................................................................................................................67
3.21 Manual control ................................................................................................................................67
3.21.1 Overview.................................................................................................................................67
3.21.2 Usage ......................................................................................................................................67
3.22 Reset.................................................................................................................................................68
4Connectivity ..............................................................................................................................................69
4.1 Network ...........................................................................................................................................69
4.1.1 LAN interface...............................................................................................................................69
4.1.2 WLAN interface...........................................................................................................................70
4.1.3 Remote access ............................................................................................................................70
5Mobile application....................................................................................................................................73
5.1 Supported systems..........................................................................................................................73
5.2 Connection and profiles..................................................................................................................73
5.2.1 Default LVLØ users......................................................................................................................73
5.2.2 First connection ..........................................................................................................................73
5.2.3 Connection modes......................................................................................................................74
5.2.4 Connection to DEMO server ......................................................................................................74
5.2.5 Editing profiles ............................................................................................................................75
5.3 Home screen....................................................................................................................................75
5.4 Dashboard........................................................................................................................................76
5.4.1 Main.............................................................................................................................................76
5.4.2 Circuit breakers...........................................................................................................................76
5.4.3 Water treatment.........................................................................................................................77
5.4.4 Pumps and valves........................................................................................................................78
5.4.5 Runtimes .....................................................................................................................................78
5.4.6 Make up water............................................................................................................................78
5.4.7 Buffer tank...................................................................................................................................78
5.4.8 Sensors ........................................................................................................................................78
5.4.9 Service intervals counter ............................................................................................................78
5.5 Statistics ...........................................................................................................................................79

SERVICE MANUAL
© ISA, s.r.o. 2014-2015. All rights reserved.
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5.5.1 Graphs .........................................................................................................................................79
5.5.2 Actual measured values..............................................................................................................79
5.5.3 Estimates of stocks .....................................................................................................................79
5.5.4 Chemical consumption ...............................................................................................................79
5.6 Settings ............................................................................................................................................80
5.6.1 Filtration ......................................................................................................................................80
5.6.2 AUX ..............................................................................................................................................81
5.6.3 Water treatment.........................................................................................................................81
5.6.4 6 way valve..................................................................................................................................82
5.6.5 Heating ........................................................................................................................................82
5.6.6 Buffer tank...................................................................................................................................83
5.6.7 Service .........................................................................................................................................83
5.6.8 App settings.................................................................................................................................84
6KNX bus communication ..........................................................................................................................85
6.1 Overview ..........................................................................................................................................85
6.2 Electrical connection .......................................................................................................................85
6.3 Configuration...................................................................................................................................85
6.3.1 KNX network address..................................................................................................................86
6.3.2 KNX Group Addresses.................................................................................................................86
6.3.3 10/0/x Communication objects for Home screen and statistics section .................................87
6.3.4 10/1/x Communication objects for Dashboard section............................................................87
6.3.5 10/2/x Communication objects for Settings and Service section ............................................88
6.4 Example communication.................................................................................................................89
6.4.1 1-bit output control ....................................................................................................................90
6.4.2 2-byte write and display value ...................................................................................................90
6.4.3 2-byte display status...................................................................................................................90
7EC Declaration of Conformity ..................................................................................................................91
8Notes .........................................................................................................................................................92

SERVICE MANUAL
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1Safety information
1.1 Safety instructions
Electrical equipment may only be installed and fitted by electrically skilled persons. The country specific
regulations and the valid guidelines must be followed.
Failure to observe the instructions may cause damage to the device and result in fire and other hazards.
Do not connect any external voltage to the inputs. Doing so may damage the device(s).
Danger of electric shock. Before working on the device or before exchanging any connected equipment
(sensors, pumps, motors, lights, etc.), disconnect mains voltage and switch off circuit breakers.
Vibrations during transport can loosen the outputs. Voltage may be present at the outputs when the mains
voltage is connected to the system.
1.2 Information for electrically skilled persons
DANGER!
Electrical shock when live parts are touched. Electrical shock can be fatal.
Before working on the device, disconnect the power supply and cover up live parts in the working
environment.

SERVICE MANUAL
© ISA, s.r.o. 2014-2015. All rights reserved.
We reserve the right to change the specification without prior notification.
Always check for new version of this document@ www.LVL0.eu
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1.3 Notice
This document should be read in conjunction with the accompanying notice and the relevant sections of
other applicable guidance documents.
We recommend performing setup step by step from top to bottom of the application.
In application it is necessary to always confirm by saving settings.
It is necessary to confirm by saving settings also all parts of technologies, which are not installed.
It is necessary to perform complete setup correctly to ensure that LVLØ controller will work as expected.

SERVICE MANUAL
© ISA, s.r.o. 2014-2015. All rights reserved.
We reserve the right to change the specification without prior notification.
Always check for new version of this document@ www.LVL0.eu
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2Overview
2.1 LVLØ – Ultimate Pool Controller
LVLØ – Ultimate pool controller is compact all-in-one solution, which fulfills requirements of majority pool
installations. LVLØ supports both skimmer pool and overflow edge pool with any water treatment
technology. LVLØ is independent of pool equipment vendors and chemical suppliers. It fits with all water
treatment techniques using either –chlorine, salt water or fresh water systems and supports the chemistry
changeover, e.g. from chlorine to salt water without the need to replace the controller. It can directly
operate up to four standard dosing pumps from any vendor or any size. Simply select your choice and adjust
parameters in the application.
2.2 Hardware overview
2.2.1 LVLØ Controller – outside components layout
No.
Device
Description
1
Main circuit breaker
Residual current circuit breaker (RCCB)
2
Motor circuit breaker
Filtration
3
Motor circuit breaker
AUX1 (attraction No. 1)
4
Motor circuit breaker
AUX2 (attraction No. 2)
5
Circuit breaker
Main technology - dosing pumps, 6way valve control, pool cover,
heating valve, make up water valve
6
Circuit breaker
Light
7
Circuit breaker
Additional technology dependent on filtration
8
Contactor
Additional technology dependent on filtration - on/off/auto
9
Contactor
Filtration - on/off/auto
10
Contactor
AUX1 (attraction No. 1) - on/off/auto
11
Contactor
AUX2 (attraction No. 2) - on/off/auto
12
Display
Shows current state and settings

SERVICE MANUAL
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2.2.2 LVLØ Controller – connector board layout
13
Setting buttons
For movement in settings menu
14
rSMA connector
2.4GHz Wi-Fi antenna
15
BNC connector
ORP electrode
16
BNC connector
pH electrode
17
Air switch
AUX1 (attraction No. 1)
18
Air switch
AUX2 (attraction No. 2)
No.
Connector
Description
1
Water temperature
sensor
3pin
1-wire sensor (included)
2
Outside temperature
sensor
3pin
1-wire sensor
3
Ext. heating
temperature sensor
3pin
1-wire sensor (included)
4
Pool cover
4pin
Max 5A @ 230V AC, 50/60Hz
5
Dosing pump 1-2
4pin
Max 1,3A @ 230V AC, 50/60Hz
pump 1 - pH minus, pump 2 - chlorine or algaecide
6
Dosing pump 3-4
4pin
Max 1,3A @ 230V AC, 50/60Hz
pump 3 - flocculants, pump 4 - pH plus
7
Aux 2 (attraction 2)
5pin
9-14A selectable @ 400/415V AC, 50/60Hz
8
Aux 1 (attraction 1)
5pin
6-10A selectable @ 400/415V AC, 50/60Hz
9
Light
2pin
Max 6A @ 230V AC, 50/60Hz
10
Filtration
5pin
1,6-2,5A @ 230/400/415V AC, 50/60Hz, clickable 1-phase or 3-
phase pump
11
Filtration setup
10pin
Passive clamp selector for 1-phase or 3-phase pump
12
Free chlorine sensor
3pin
4-20mA Analog input
13
3-way valve
3pin
Max 2A @ 230V AC, 50/60Hz
14
BUS
2pin
LVLØ proprietary bus
15
Power 5V
2pin
Max 3A @ 5V DC

SERVICE MANUAL
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2.3 Overview of features
LVLØ was developed and designed to simplify installation, configuration, operation and maintenance of all
technological processes needed for safe swimming pool operation. Following is an overview of highlighted
features that LVLØ offers.
2.3.1 Operation
Compact all in one solution
Powerful mobile application for free
IP65 protection
Economic energy saving features (bottom drain flow, smart filtration
start, AUX stop mode...)
Energy saving display
Adjustable individual service intervals for technology parts
2.3.2 Measuring and control
pH and ORP measurement with quality process electrodes
Standard 4-20mA input for free chlorine measurement
3 temperature inputs (water, ambient, external heating system)
Dosing of pH minus, pH plus, chlorine, algaecide, flocculants via
assignable 4 outputs for dosing pumps
Variable dosing pumps flow rates
16
Power 24V
2pin
Max 1A @ 24V DC
17
KNX
2pin
KNX communication bus
18
Optical water level
sensor
3pin
For use only with included sensor for skimmer
19
Ultrasonic water level
sensor
3pin
0-10V @ 24V DC
20
Switch Aux 1
(attraction 1)
2pin
Potential free contact for Aux 1 (8)
21
Switch Aux 2
(attraction 2)
2pin
Potential free contact for Aux 2 (7)
22
Make up water valve
3pin
Max 2A @ 230V AC, 50/60Hz, solenoid valve
23
Backwash valve |
Variable speed pump
9pin
Max 2A @ 230V AC, 50/60Hz (Praher MP series
recommended), Push-pull valve (Besgo or similar), Variable
speed pump with up to four speed.
24
UV lamp
3pin
Salt chlorine generator max 10A @ 230V, 50/60Hz
Total current can NOT exceed 16A at 230V, 50/60Hz
Outputs dependent on filtration
25
Salt chlorine generator
3pin
26
Ozone generator
3pin
27
Heating pump
3pin
28
Fuse
1A @ 230V
29
Main power
5pin
3-phase input 400/415V AC
30
Power extension
5pin
RCCB protection, sensitivity 30mA, In 25A,400V/415V, 50/60Hz
31
RJ-45 connector
10/100Mbps Ethernet

SERVICE MANUAL
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Maximal chlorine daily dose
Daily and initial dosing for Algaecide and Flocculants
3 point calibration for pH
1 point calibration for redox
2.3.3 Safety functions
Continuous circuit breakers and motor starters monitoring and alerting
Monitoring levels of used chemicals with threshold function
Water level monitoring (skimmer and overflow edge)
Buffer tank dry run protection, overflow protection
Automatic blocking of dosing
Password protected service menu
Secure pool cover control
Secure AUX blocking based on pool cover status
Winter mode
Email alerts
2.3.4 Functions
Filtration pump
oSelectable 230VAC or 400/415VAC motor circuit-breaker
o3 modes, automatic/party/custom
oWinter mode
oMinimal runtime recommendation
oBottom drain recirculation
oCustom timers
oSmart filtration start based on AUX usage
oRuntime counter and service interval
oVariable speed pumps operations (4 speed)
oSpeed profiles setup for different operations modes (normal, pool cover closed, AUX
active)
AUX, lights and pool cover
oUp to 2 AUX for attractions (countercurrent, bubble, fountain, etc.)
oBuilt in motor circuit-breakers with contactors
o2 modes, automatic stop mode/manual
oLights control
oPool cover motor control
oConfigurable automatic stop mode times
oSecure blocking of AUX based on pool cover
Backwash process control
oControl of all 6 positions on electric multi-port valve
oControl of push-pull valve like Besgo 5-way or similar
o4 filter cleanup modes (2x per week/1x per week/custom/manual)
oCleanup now function
oConfigurable backwash, cleanup, rinse and valve position switching time
oManual control
Water level control
oBuffer tank:
Water level control with ultrasonic water level sensor
4 security water levels with recommendations based on buffer tank dimensions
Dry run protection, overfill protection

SERVICE MANUAL
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Configurable maximal make up time per day
oSkimmer pool:
Optical sensor for water level detection
Automatic or manual mode
Configurable delay start and stop for make-up water valve
Configurable maximal make up time per day
Controlling of 2/3-way valve
Salt water chlorine generator control:
oAutomatic or manual mode
Additional technology for water treatment:
oUV lamp control
oOzone generator
oHeating pump
Heating control
oSet point and hysteresis setup
oCooling functionality
oControlling of 2/3-way 230VAC valve
2.3.5 Connectivity and remote access
Integrated Ethernet interface for LAN connectivity and remote access
Integrated WLAN access point
KNX interface for easy smart home integration
Free mobile application for iOS and Android devices
2.3.6 Interfaces
Measurement inputs:
opH (BNC)
oRedox potential (BNC)
oFree chlorine, (4-20mA connector)
o3x temperature (1wire)
oUltrasonic water level sensor (3wire)
oMake up water level sensor (2wire)
Switching inputs:
o2x integrated air switches for AUX control
o2x potential free contact for AUX control
Switching outputs:
o4x dosing pump 230VAC
o2x AUX 400VAC
oPool cover (2x230VAC motor up/down)
oLight 230VAC
oFiltration 230VAC or 400VAC
o6way valve control 6x 230VAC
oMake up water valve 230VAC
oExternal heating system valve 2x 230VAC
oSalt chlorine generator 230VAC
oHeating pump 230VAC
oUV lamp 230VAC
oOzone generator 230VAC
oPower extension 24A 400VAC
Communication interfaces:
oEthernet LAN (RJ45)

SERVICE MANUAL
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oKNX (2wire)
oBUS (internal use)
Electrical outputs:
o5VDC/ 3A
o24VDC/ 1A
3Installation and Configuration
3.1 Mounting instructions
3.1.1 LVLØ Controller
LVLØ enclosure is designed to wall mount in accordance with local codes and regulations. Wall mounting
brackets and custom drilling templates are included in the package.
This hardware is specially designed for easy and fast installation and de-
installation and fits any type of wall (hollow concrete block, concrete,
plaster, wall board, wood, etc.). Before wall mounting, install the supplied
wall brackets onto LVLØ Controller unit with supplied screws.
3.1.1.1 Mounting location
Determine the best location suitable for
mounting the LVLØ Controller.
NOTE: Allow enough room around the
enclosure to open the lid (see picture),
attach wires, sensors, and extend
antenna.
Drilling diagram:
A = 361,5 mm B= 346 mm C=360,3 mm
Using the custom drilling template, layout the positions of the four mounting holes for the controller.
Closed
Open (over 180°)- lid
secured against falling off

SERVICE MANUAL
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3.1.1.2 Locking mechanism & opening procedure
In accordance with local codes and regulations, you can choose two locking mechanisms. Details are shown
on the picture bellow.
By hand
With tool
Blinding plug
Catch

SERVICE MANUAL
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Press the recessed area (1.) to open the lid (2.) over 180°. Fully open lid is secured against falling off.
3.2 Getting connected
LVLØ switchboard houses all fuses, circuit breakers and
other protection units, powered by main or sub-main
distribution board of the building, used to distribute
electrical power to all swimming pool equipment.
3.2.1 Wire routing
LVLØ switchboard has a cable entry plate at the bottom of the enclosure. Entry plate is designed for routing
up to 24 standard cables (without connectors). Simply put a small slit in the thin membrane, push standard
cables through and it is immediately IP64 sealed (certified according to DIN EN 60529:2000-09).
Number of cables:
16× max. 6.5 mm
4× max. 12.1 mm
4× max. 16.1 mm
2× ASI cables

SERVICE MANUAL
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3.2.2 Main Breaker –Residual Current Circuit Breaker iID (RCCB)
LVLØ built in RCCB from Schneider-Electric, Acti 9 range - provides absolute people protection (30mA
sensitivity for protection against direct contact), protection of equipment against electrocution (in
accordance with installation standard IEC 60364 and national
standards), protection from risk of fire due to current leakage into
building electrical installations and improved continuity of service.
Acti 9 covers all applications, especially in polluted environments and
networks.
Acti 9 exclusivities:
VISI-SAFE –Guaranteed safe
intervention on site, contact position
indication with the green strip,
insulation voltage 500 V, pollution
degree level 3 (conductive pollution, dust, harsh environment)
VISI-TRIP –Indicator makes it easy to spot a tripped circuit breaker to
minimize downtime
Front face class 2 - Continuous safety for operators and non-qualified personnel
It automatically disconnects whenever it detects that the electric current is not balanced between the
energized conductor and the return neutral conductor. Such an imbalance may indicate current leakage
(for ex. through the grounded body of a person). RCCB is designed to disconnect quickly enough to prevent
injury caused by shocks. They are not providing protection against overcurrent (overload) or all short-circuit
conditions. RCCB is compliant with standard IEC EN 61008-1, certified by national official authorities and is
suitable for isolation in accordance with industrial standard IEC/EN 60947-2.
This device enables the mechanical parts of the RCCB to be verified by pressing the button marked „T“.
NOTE:
Do not use test button to switch OFF RCCB.
A test for the effectiveness of the RCCB in the
protected installation should be carried out,
periodically, based on maintenance standards.
To test the operation of the RCCB after installation:
oRCCB must be in ON position and
energized,
opress the „T“ button on the front of the
device,
oThe RCCB should trip immediately.
Failure to do so indicates either no supply to the RCCB or a faulty device.
Failure to follow these instructions can result in equipment damage!

SERVICE MANUAL
© ISA, s.r.o. 2014-2015. All rights reserved.
We reserve the right to change the specification without prior notification.
Always check for new version of this document@ www.LVL0.eu
Service manual V1.08 | Nov-2015 | LM0002-EN
Page 19 of 97
3.2.3 Main Power
Connect proper power supply cable (unit maximum running current is
25A 400/415V AC) to LVLØ using “MAIN POWER” connector. Connector
29; connector position details are in section 2.2.2 (Connection in acc.
with EN-VDE standard). Recommended wire area is 2.5 mm².
Use screw thread M3 (0.5-0.6 Nm torque) and fasten cable in connector.
NOTE:
Max. „MAIN POWER” cable nominal cross section diameter is 2.5 mm².
Connector description, recommended color code (EU Countries):
Phase Conductor
Neutral
Conductor**
Protective
Conductor
Connector
labeling
L1
L2
L3
N
PE
1 Phase
3 Phase
** For connection without neutral see section 0
NOTE:
Mains power can be lost due to downed lines, malfunctions at a sub-station, inclement weather,
planned blackouts or in extreme cases a grid-wide failure. In LVLØ, all devices responsible for
water treatment processes in swimming pool are powered from 1st phase (L1). With regular
generators or an uninterruptible power source with use of an automatic transfer switch you can
connect Phase 1 (L1) to emergency power.
3.2.4 Power extension
Power extension is an instant output arranged for use as service entrance
equipment and it is fused by main power to connect optional distribution
switchboard if needed.
Extension is protected by Main power breaker –RCCB (see section 3.2.2).
Max. “POWER EXTENSION” cable nominal cross section diameter is 2.5 mm².
3.2.5 Power connection options
LVLØ controller can be connected to 50/60Hz power network, 110-415V three-phase with neutral or 220-
-415V without neutral wire. Connection details are in table below.
Connection in three-phase
with neutral wire
Connection in three-phase
without neutral wire

SERVICE MANUAL
© ISA, s.r.o. 2014-2015. All rights reserved.
We reserve the right to change the specification without prior notification.
Always check for new version of this document@ www.LVL0.eu
Service manual V1.08 | Nov-2015 | LM0002-EN
Page 20 of 97
220…415 V
220…240 V
380…415 V
Copper insulated cable
wire 2.5mm2
R - Resistor 2200 Ω/ 4W
(optional accessory)
3.3 Basic setup
3.3.1 Overview
LVLØ controller needs basic information about the swimming pool which it is supposed to control. Knowing
how much water your pool will hold is the key to having the correct water chemistry and correct pool
operation.
3.3.2 Configuration
Basic setup has to be performed via LVLØ mobile application in Service section. After entering Service PIN,
click Basic setup.
Installation nr: <value> number of installation. Used in email notification, to identify device/customer. Best
practice is to use last 3 digits from serial number and store installation nr. in profile name too.
Pool volume: <value> value in m3. Setup the pool volume which will LVLØ operate. For details, please check
with your pool vendor if necessary. To calculate your swimming pool volume in cubic meters, follow the
following formula:
measure the length and width of the pool,
measure the depth of your pool,
multiply the result by the length and width of the pool
Pool mode, defines how LVLØ will operate the pool. It is possible to select from the following options:
In use: standard operation, water quality measurement, chemical dosing, filtration and all other
processes are in operation. Swimming pool water is maintained to be ready for use.
R