Klaro LA-28B User manual

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Operating manual
for KLARO small wastewater treatment plants
We provide clean water
No mechanical parts
in the wastewater
No pumps
in the wastewater
No electrical parts
in the wastewater

KLARO GmbH
2Original Operating Manual for KLARO Small Wastewater Treatment Plant V.15.07
IMPORTANT:
•This Operating Manual contains information about the plant, from installation
to maintenance, and must therefore be read before commissioning of the
plant!
•All safety instructions must be observed!
•The Operating Manual must be kept readily available during the operation of
the plant!
Plant Specifications
For any questions in the course of the operation of the plant, the specifications of your plant should
be noted as follows. With the help of this information, our staff will be able to help you more quickly
in the event of a malfunction. The specifications can be found on the nameplate, which is located
on the outside of the cabinet door for indoor cabinets, and inside the cabinet for outdoor cabinets.
Small Wastewater Treatment
Plant
PT
Sludge storage
Buffer
SB-Reactor
Approval No.:
Process class:
Certified:
Cabinet:
Co
ntroller:
Compressor:
Denomination:
Serial No.
:
Article No.:
Additional module:
Article No.:
El. Connected load:
KLARO GmbH
2Original Operating Manual for KLARO Small Wastewater Treatment Plant V.15.07
IMPORTANT:
•This Operating Manual contains information about the plant, from installation
to maintenance, and must therefore be read before commissioning of the
plant!
•All safety instructions must be observed!
•The Operating Manual must be kept readily available during the operation of
the plant!
Plant Specifications
For any questions in the course of the operation of the plant, the specifications of your plant should
be noted as follows. With the help of this information, our staff will be able to help you more quickly
in the event of a malfunction. The specifications can be found on the nameplate, which is located
on the outside of the cabinet door for indoor cabinets, and inside the cabinet for outdoor cabinets.
Small Wastewater Treatment
Plant
PT
Sludge storage
Buffer
SB-Reactor
Approval No.:
Process class:
Certified:
Cabinet:
Co
ntroller:
Compressor:
Denomination:
Serial No.
:
Article No.:
Additional module:
Article No.:
El. Connected load:
KLARO GmbH
2Original Operating Manual for KLARO Small Wastewater Treatment Plant V.15.07
IMPORTANT:
•This Operating Manual contains information about the plant, from installation
to maintenance, and must therefore be read before commissioning of the
plant!
•All safety instructions must be observed!
•The Operating Manual must be kept readily available during the operation of
the plant!
Plant Specifications
For any questions in the course of the operation of the plant, the specifications of your plant should
be noted as follows. With the help of this information, our staff will be able to help you more quickly
in the event of a malfunction. The specifications can be found on the nameplate, which is located
on the outside of the cabinet door for indoor cabinets, and inside the cabinet for outdoor cabinets.
Small Wastewater Treatment
Plant
PT
Sludge storage
Buffer
SB-Reactor
Approval No.:
Process class:
Certified:
Cabinet:
Co
ntroller:
Compressor:
Denomination:
Serial No.
:
Article No.:
Additional module:
Article No.:
El. Connected load:
2

KLARO GmbH
2Original Operating Manual for KLARO Small Wastewater Treatment Plant V.15.07
IMPORTANT:
•This Operating Manual contains information about the plant, from installation
to maintenance, and must therefore be read before commissioning of the
plant!
•All safety instructions must be observed!
•The Operating Manual must be kept readily available during the operation of
the plant!
Plant Specifications
For any questions in the course of the operation of the plant, the specifications of your plant should
be noted as follows. With the help of this information, our staff will be able to help you more quickly
in the event of a malfunction. The specifications can be found on the nameplate, which is located
on the outside of the cabinet door for indoor cabinets, and inside the cabinet for outdoor cabinets.
Small Wastewater Treatment
Plant
PT
Sludge storage
Buffer
SB-Reactor
Approval No.:
Process class:
Certified:
Cabinet:
Co
ntroller:
Compressor:
Denomination:
Serial No.
:
Article No.:
Additional module:
Article No.:
El. Connected load:
KLARO GmbH
Original Operating Manual for KLARO Small Wastewater Treatment Plant V.15.07 3
CONTENTS Page
1. About this Operating Manual 6
1.1. Original Language of Documentation 6
1.2. Completeness 6
1.3. Liability 7
2. Safety 7
2.1. Explanation of Warnings and Prohibitions 7
2.2. Hazard statements 8
2.3. Warnings 9
2.4. Exclusion for Use 10
3. Warranty 10
4. Function of the SBR Plant 10
4.1. Plants for carbon elimination (process classes C) 11
4.2. Systems with Additional Nitrogen Removal (Process Classes N and D) 13
4.3. Systems with Additional Phosphate Elimination (Process Class +P) 13
4.4. Systems with Additional Sanitation (Process Class +S) 13
5. Control of the Small Wastewater Treatment Plant 13
5.1. Connections to the KL-controls (230V option for solenoid valves) 16
5.2. Connections to the KL24 controller(24V option for stepper motor valves) 16
5.3. Operating the Controller 18
5.3.1. Querying Operating Hours 18
5.3.2. Manual Control of the Valves and the Cabinet Fan in "Manual Mode" 19
5.3.3. Setting Date/Time 20
5.3.4. Set Holiday Mode 20
5.3.5. Query Malfunctions -Query Old Malfunctions 21
5.3.6. Display Settings 21
5.3.7. Service Menu and Action Code 21
5.4. Changing the Fuses 22
5.5. Operation of Power Failure Detector 22
6. Additional functions of the Controllers KLplus/ KL24plus and KLbasic/KL24base 23
6.1. Underload detection (KLplus/KL24plus) 23
6.1.1. Mode of Operation 24
6.1.2. Commissioning 24
6.1.3. Switching Off the Level Measurement 25
6.1.4. Safety and Fault Messages25
6.2. Optional Functions 26
6.2.1. Connection of an external alarm device 26
6.2.2. Connection of a contactor for switching the compressor 26
6.2.3. Connection of a UV reactor 26
6.2.4. Phosphate precipitation with metering pump 26
7. Maintenance, Repair and Operation 28
7.1. Sludge Evacuation 28
7.2. Operating Instructions 29
8. Fault Messages and Troubleshooting 31
8.1. Fault Message on the Display 32
8.2. Unusual Water Levels -Troubleshooting 33
KLARO GmbH
2Original Operating Manual for KLARO Small Wastewater Treatment Plant V.15.07
IMPORTANT:
•This Operating Manual contains information about the plant, from installation
to maintenance, and must therefore be read before commissioning of the
plant!
•All safety instructions must be observed!
•The Operating Manual must be kept readily available during the operation of
the plant!
Plant Specifications
For any questions in the course of the operation of the plant, the specifications of your plant should
be noted as follows. With the help of this information, our staff will be able to help you more quickly
in the event of a malfunction. The specifications can be found on the nameplate, which is located
on the outside of the cabinet door for indoor cabinets, and inside the cabinet for outdoor cabinets.
Small Wastewater Treatment
Plant
PT
Sludge storage
Buffer
SB-Reactor
Approval No.:
Process class:
Certified:
Cabinet:
Co
ntroller:
Compressor:
Denomination:
Serial No.
:
Article No.:
Additional module:
Article No.:
El. Connected load:
KLARO GmbH
Original Operating Manual for KLARO Small Wastewater Treatment Plant V.15.07 3
CONTENTS Page
1. About this Operating Manual 6
1.1. Original Language of Documentation 6
1.2. Completeness 6
1.3. Liability 7
2. Safety 7
2.1. Explanation of Warnings and Prohibitions 7
2.2. Hazard statements 8
2.3. Warnings 9
2.4. Exclusion for Use 10
3. Warranty 10
4. Function of the SBR Plant 10
4.1. Plants for carbon elimination (process classes C) 11
4.2. Systems with Additional Nitrogen Removal (Process Classes N and D) 13
4.3. Systems with Additional Phosphate Elimination (Process Class +P) 13
4.4. Systems with Additional Sanitation (Process Class +S) 13
5. Control of the Small Wastewater Treatment Plant 13
5.1. Connections to the KL-controls (230V option for solenoid valves) 16
5.2. Connections to the KL24 controller(24V option for stepper motor valves) 16
5.3. Operating the Controller 18
5.3.1. Querying Operating Hours 18
5.3.2. Manual Control of the Valves and the Cabinet Fan in "Manual Mode" 19
5.3.3. Setting Date/Time 20
5.3.4. Set Holiday Mode 20
5.3.5. Query Malfunctions -Query Old Malfunctions 21
5.3.6. Display Settings 21
5.3.7. Service Menu and Action Code 21
5.4. Changing the Fuses 22
5.5. Operation of Power Failure Detector 22
6. Additional functions of the Controllers KLplus/ KL24plus and KLbasic/KL24base 23
6.1. Underload detection (KLplus/KL24plus) 23
6.1.1. Mode of Operation 24
6.1.2. Commissioning 24
6.1.3. Switching Off the Level Measurement 25
6.1.4. Safety and Fault Messages25
6.2. Optional Functions 26
6.2.1. Connection of an external alarm device 26
6.2.2. Connection of a contactor for switching the compressor 26
6.2.3. Connection of a UV reactor 26
6.2.4. Phosphate precipitation with metering pump 26
7. Maintenance, Repair and Operation 28
7.1. Sludge Evacuation 28
7.2. Operating Instructions 29
8. Fault Messages and Troubleshooting 31
8.1. Fault Message on the Display 32
8.2. Unusual Water Levels -Troubleshooting 33
KLARO GmbH
2Original Operating Manual for KLARO Small Wastewater Treatment Plant V.15.07
IMPORTANT:
•This Operating Manual contains information about the plant, from installation
to maintenance, and must therefore be read before commissioning of the
plant!
•All safety instructions must be observed!
•The Operating Manual must be kept readily available during the operation of
the plant!
Plant Specifications
For any questions in the course of the operation of the plant, the specifications of your plant should
be noted as follows. With the help of this information, our staff will be able to help you more quickly
in the event of a malfunction. The specifications can be found on the nameplate, which is located
on the outside of the cabinet door for indoor cabinets, and inside the cabinet for outdoor cabinets.
Small Wastewater Treatment
Plant
PT
Sludge storage
Buffer
SB-Reactor
Approval No.:
Process class:
Certified:
Cabinet:
Co
ntroller:
Compressor:
Denomination:
Serial No.
:
Article No.:
Additional module:
Article No.:
El. Connected load:
KLARO GmbH
Original Operating Manual for KLARO Small Wastewater Treatment Plant V.15.07 3
CONTENTS Page
1. About this Operating Manual 6
1.1. Original Language of Documentation 6
1.2. Completeness 6
1.3. Liability 7
2. Safety 7
2.1. Explanation of Warnings and Prohibitions 7
2.2. Hazard statements 8
2.3. Warnings 9
2.4. Exclusion for Use 10
3. Warranty 10
4. Function of the SBR Plant 10
4.1. Plants for carbon elimination (process classes C) 11
4.2. Systems with Additional Nitrogen Removal (Process Classes N and D) 13
4.3. Systems with Additional Phosphate Elimination (Process Class +P) 13
4.4. Systems with Additional Sanitation (Process Class +S) 13
5. Control of the Small Wastewater Treatment Plant 13
5.1. Connections to the KL-controls (230V option for solenoid valves) 16
5.2. Connections to the KL24 controller(24V option for stepper motor valves) 16
5.3. Operating the Controller 18
5.3.1. Querying Operating Hours 18
5.3.2. Manual Control of the Valves and the Cabinet Fan in "Manual Mode" 19
5.3.3. Setting Date/Time 20
5.3.4. Set Holiday Mode 20
5.3.5. Query Malfunctions -Query Old Malfunctions 21
5.3.6. Display Settings 21
5.3.7. Service Menu and Action Code 21
5.4. Changing the Fuses 22
5.5. Operation of Power Failure Detector 22
6. Additional functions of the Controllers KLplus/ KL24plus and KLbasic/KL24base 23
6.1. Underload detection (KLplus/KL24plus) 23
6.1.1. Mode of Operation 24
6.1.2. Commissioning 24
6.1.3. Switching Off the Level Measurement 25
6.1.4. Safety and Fault Messages25
6.2. Optional Functions 26
6.2.1. Connection of an external alarm device 26
6.2.2. Connection of a contactor for switching the compressor 26
6.2.3. Connection of a UV reactor 26
6.2.4. Phosphate precipitation with metering pump 26
7. Maintenance, Repair and Operation 28
7.1. Sludge Evacuation 28
7.2. Operating Instructions 29
8. Fault Messages and Troubleshooting 31
8.1. Fault Message on the Display 32
8.2. Unusual Water Levels -Troubleshooting 33
3

KLARO GmbH
4Original Operating Manual for KLARO Small Wastewater Treatment Plant V.15.07
8.3. Possible failures of solenoid valves 34
APPENDIX 35
9. Circuit diagrams 36
9.1. Circuit Diagram EPP Cabinet with KLbasic Controller 36
9.2. Circuit Diagram EPP Cabinet with KLplus Controller 36
9.3. Circuit Diagram I Cabinet with KLbasic Controller 37
9.4. Circuit Diagram I Cabinet with KLplus Controller 37
9.5. Circuit Diagram A Column with KLbasic Controller 38
9.6. Circuit Diagram A Column with KLplus Controller 38
9.7. Circuit Diagram A Cabinet Universal with KLbasic Controller 39
9.8. Circuit Diagram A Cabinet Universal with KLplus Controller 39
9.9. Circuit Diagram Extension Cable 40
9.10. Circuit Diagram EPP Cabinet with KL24plus Controller 41
9.11. Circuit Diagram EPP Cabinet with KL24plus Controller 41
9.12. Circuit Diagram I Cabinet with KL24base Controller 42
9.13. Circuit Diagram I Cabinet with KL24plus Controller 42
9.14. Circuit Diagram A Column with KL24base Controller 43
9.15. Circuit Diagram A Column with KL24plus Controller 43
9.16. Circuit Diagram A Cabinet Universal with KL24base Controller 44
9.17. Circuit Diagram A Cabinet Universal with KL24plus Controller 44
10. Original EC Declaration of Conformity Small Wastewater Treatment Plant in Concrete Tank 45
11. Original EC Declaration of Conformity Small Wastewater Treatment Plant in Plastic Tank 47
12. Additional Plant Tests 49
12.1. Safety tested by TÜV SÜD 49
12.2. Proven treatment performance in underload operation 49
13. Plant Datasheets 50
13.1. Piston Compressor Nitto 50
13.2. Rotary Vane Compressor Becker and Rietschle 57
13.3. Connections on the Air Distributor/Manifold 66
13.4. Connections for the control of single-chamber small wastewater treatment plants 67
13.5. Connections for the Control of Multi-chamber or Multi-tank Small Sewage Treatment Plants 67
KLARO GmbH
2Original Operating Manual for KLARO Small Wastewater Treatment Plant V.15.07
IMPORTANT:
•This Operating Manual contains information about the plant, from installation
to maintenance, and must therefore be read before commissioning of the
plant!
•All safety instructions must be observed!
•The Operating Manual must be kept readily available during the operation of
the plant!
Plant Specifications
For any questions in the course of the operation of the plant, the specifications of your plant should
be noted as follows. With the help of this information, our staff will be able to help you more quickly
in the event of a malfunction. The specifications can be found on the nameplate, which is located
on the outside of the cabinet door for indoor cabinets, and inside the cabinet for outdoor cabinets.
Small Wastewater Treatment
Plant
PT
Sludge storage
Buffer
SB-Reactor
Approval No.:
Process class:
Certified:
Cabinet:
Co
ntroller:
Compressor:
Denomination:
Serial No.
:
Article No.:
Additional module:
Article No.:
El. Connected load:
KLARO GmbH
2Original Operating Manual for KLARO Small Wastewater Treatment Plant V.15.07
IMPORTANT:
•This Operating Manual contains information about the plant, from installation
to maintenance, and must therefore be read before commissioning of the
plant!
•All safety instructions must be observed!
•The Operating Manual must be kept readily available during the operation of
the plant!
Plant Specifications
For any questions in the course of the operation of the plant, the specifications of your plant should
be noted as follows. With the help of this information, our staff will be able to help you more quickly
in the event of a malfunction. The specifications can be found on the nameplate, which is located
on the outside of the cabinet door for indoor cabinets, and inside the cabinet for outdoor cabinets.
Small Wastewater Treatment
Plant
PT
Sludge storage
Buffer
SB-Reactor
Approval No.:
Process class:
Certified:
Cabinet:
Co
ntroller:
Compressor:
Denomination:
Serial No.
:
Article No.:
Additional module:
Article No.:
El. Connected load:
4

KLARO GmbH
4Original Operating Manual for KLARO Small Wastewater Treatment Plant V.15.07
8.3. Possible failures of solenoid valves 34
APPENDIX 35
9. Circuit diagrams 36
9.1. Circuit Diagram EPP Cabinet with KLbasic Controller 36
9.2. Circuit Diagram EPP Cabinet with KLplus Controller 36
9.3. Circuit Diagram I Cabinet with KLbasic Controller 37
9.4. Circuit Diagram I Cabinet with KLplus Controller 37
9.5. Circuit Diagram A Column with KLbasic Controller 38
9.6. Circuit Diagram A Column with KLplus Controller 38
9.7. Circuit Diagram A Cabinet Universal with KLbasic Controller 39
9.8. Circuit Diagram A Cabinet Universal with KLplus Controller 39
9.9. Circuit Diagram Extension Cable 40
9.10. Circuit Diagram EPP Cabinet with KL24plus Controller 41
9.11. Circuit Diagram EPP Cabinet with KL24plus Controller 41
9.12. Circuit Diagram I Cabinet with KL24base Controller 42
9.13. Circuit Diagram I Cabinet with KL24plus Controller 42
9.14. Circuit Diagram A Column with KL24base Controller 43
9.15. Circuit Diagram A Column with KL24plus Controller 43
9.16. Circuit Diagram A Cabinet Universal with KL24base Controller 44
9.17. Circuit Diagram A Cabinet Universal with KL24plus Controller 44
10. Original EC Declaration of Conformity Small Wastewater Treatment Plant in Concrete Tank 45
11. Original EC Declaration of Conformity Small Wastewater Treatment Plant in Plastic Tank 47
12. Additional Plant Tests 49
12.1. Safety tested by TÜV SÜD 49
12.2. Proven treatment performance in underload operation 49
13. Plant Datasheets 50
13.1. Piston Compressor Nitto 50
13.2. Rotary Vane Compressor Becker and Rietschle 57
13.3. Connections on the Air Distributor/Manifold 66
13.4. Connections for the control of single-chamber small wastewater treatment plants 67
13.5. Connections for the Control of Multi-chamber or Multi-tank Small Sewage Treatment Plants 67
KLARO GmbH
Original Operating Manual for KLARO Small Wastewater Treatment Plant V.15.07 5
LIST OF FIGURES Page
Figure 1: Membrane Tube Diffusor.................................................................................................................. 12
Figure 2: Membrane Plate Diffusor.................................................................................................................. 12
Figure 3: View of the Operating Unit KLbasic/KL24base ............................................................................... 14
Figure 4: View of the Operating Unit KLplus/KL24plus ................................................................................... 14
Figure 5: View of the Liquid Crystal Display During the Aeration Phase ........................................................ 14
Figure 6: View of the Control Panel................................................................................................................. 15
Figure 7: View of the Back of the Controller KLbasic ...................................................................................... 16
Figure 8: View of the Back of the Controller KLplus........................................................................................ 16
Figure 9: View of the Back of the Controller KL24base................................................................................... 17
Figure 10: View of the Back of the Controller KL24plus.................................................................................. 17
Figure 11: Charging Lifter................................................................................................................................ 24
Figure 12: System Layout Precipitant Device .................................................................................................27
Figure 13: Dosing Pump Compact .................................................................................................................. 28
Figure 14: Dosing Pump DP12 and DP24....................................................................................................... 28
Figure 15: Air Distributor with Stepper Motors for Single-Chamber KLARO One ........................................... 67
Figure 16: Air Distributor with Stepper Motors for Multi-chamber or Multi-tank KLARO One ......................... 67
KLARO GmbH
2Original Operating Manual for KLARO Small Wastewater Treatment Plant V.15.07
IMPORTANT:
•This Operating Manual contains information about the plant, from installation
to maintenance, and must therefore be read before commissioning of the
plant!
•All safety instructions must be observed!
•The Operating Manual must be kept readily available during the operation of
the plant!
Plant Specifications
For any questions in the course of the operation of the plant, the specifications of your plant should
be noted as follows. With the help of this information, our staff will be able to help you more quickly
in the event of a malfunction. The specifications can be found on the nameplate, which is located
on the outside of the cabinet door for indoor cabinets, and inside the cabinet for outdoor cabinets.
Small Wastewater Treatment
Plant
PT
Sludge storage
Buffer
SB-Reactor
Approval No.:
Process class:
Certified:
Cabinet:
Co
ntroller:
Compressor:
Denomination:
Serial No.
:
Article No.:
Additional module:
Article No.:
El. Connected load:
KLARO GmbH
Original Operating Manual for KLARO Small Wastewater Treatment Plant V.15.07 3
CONTENTS Page
1. About this Operating Manual 6
1.1. Original Language of Documentation 6
1.2. Completeness 6
1.3. Liability 7
2. Safety 7
2.1. Explanation of Warnings and Prohibitions 7
2.2. Hazard statements 8
2.3. Warnings 9
2.4. Exclusion for Use 10
3. Warranty 10
4. Function of the SBR Plant 10
4.1. Plants for carbon elimination (process classes C) 11
4.2. Systems with Additional Nitrogen Removal (Process Classes N and D) 13
4.3. Systems with Additional Phosphate Elimination (Process Class +P) 13
4.4. Systems with Additional Sanitation (Process Class +S) 13
5. Control of the Small Wastewater Treatment Plant 13
5.1. Connections to the KL-controls (230V option for solenoid valves) 16
5.2. Connections to the KL24 controller(24V option for stepper motor valves) 16
5.3. Operating the Controller 18
5.3.1. Querying Operating Hours 18
5.3.2. Manual Control of the Valves and the Cabinet Fan in "Manual Mode" 19
5.3.3. Setting Date/Time 20
5.3.4. Set Holiday Mode 20
5.3.5. Query Malfunctions -Query Old Malfunctions 21
5.3.6. Display Settings 21
5.3.7. Service Menu and Action Code 21
5.4. Changing the Fuses 22
5.5. Operation of Power Failure Detector 22
6. Additional functions of the Controllers KLplus/ KL24plus and KLbasic/KL24base 23
6.1. Underload detection (KLplus/KL24plus) 23
6.1.1. Mode of Operation 24
6.1.2. Commissioning 24
6.1.3. Switching Off the Level Measurement 25
6.1.4. Safety and Fault Messages25
6.2. Optional Functions 26
6.2.1. Connection of an external alarm device 26
6.2.2. Connection of a contactor for switching the compressor 26
6.2.3. Connection of a UV reactor 26
6.2.4. Phosphate precipitation with metering pump 26
7. Maintenance, Repair and Operation 28
7.1. Sludge Evacuation 28
7.2. Operating Instructions 29
8. Fault Messages and Troubleshooting 31
8.1. Fault Message on the Display 32
8.2. Unusual Water Levels -Troubleshooting 33
KLARO GmbH
2Original Operating Manual for KLARO Small Wastewater Treatment Plant V.15.07
IMPORTANT:
•This Operating Manual contains information about the plant, from installation
to maintenance, and must therefore be read before commissioning of the
plant!
•All safety instructions must be observed!
•The Operating Manual must be kept readily available during the operation of
the plant!
Plant Specifications
For any questions in the course of the operation of the plant, the specifications of your plant should
be noted as follows. With the help of this information, our staff will be able to help you more quickly
in the event of a malfunction. The specifications can be found on the nameplate, which is located
on the outside of the cabinet door for indoor cabinets, and inside the cabinet for outdoor cabinets.
Small Wastewater Treatment
Plant
PT
Sludge storage
Buffer
SB-Reactor
Approval No.:
Process class:
Certified:
Cabinet:
Co
ntroller:
Compressor:
Denomination:
Serial No.
:
Article No.:
Additional module:
Article No.:
El. Connected load:
KLARO GmbH
Original Operating Manual for KLARO Small Wastewater Treatment Plant V.15.07 3
CONTENTS Page
1. About this Operating Manual 6
1.1. Original Language of Documentation 6
1.2. Completeness 6
1.3. Liability 7
2. Safety 7
2.1. Explanation of Warnings and Prohibitions 7
2.2. Hazard statements 8
2.3. Warnings 9
2.4. Exclusion for Use 10
3. Warranty 10
4. Function of the SBR Plant 10
4.1. Plants for carbon elimination (process classes C) 11
4.2. Systems with Additional Nitrogen Removal (Process Classes N and D) 13
4.3. Systems with Additional Phosphate Elimination (Process Class +P) 13
4.4. Systems with Additional Sanitation (Process Class +S) 13
5. Control of the Small Wastewater Treatment Plant 13
5.1. Connections to the KL-controls (230V option for solenoid valves) 16
5.2. Connections to the KL24 controller(24V option for stepper motor valves) 16
5.3. Operating the Controller 18
5.3.1. Querying Operating Hours 18
5.3.2. Manual Control of the Valves and the Cabinet Fan in "Manual Mode" 19
5.3.3. Setting Date/Time 20
5.3.4. Set Holiday Mode 20
5.3.5. Query Malfunctions -Query Old Malfunctions 21
5.3.6. Display Settings 21
5.3.7. Service Menu and Action Code 21
5.4. Changing the Fuses 22
5.5. Operation of Power Failure Detector 22
6. Additional functions of the Controllers KLplus/ KL24plus and KLbasic/KL24base 23
6.1. Underload detection (KLplus/KL24plus) 23
6.1.1. Mode of Operation 24
6.1.2. Commissioning 24
6.1.3. Switching Off the Level Measurement 25
6.1.4. Safety and Fault Messages25
6.2. Optional Functions 26
6.2.1. Connection of an external alarm device 26
6.2.2. Connection of a contactor for switching the compressor 26
6.2.3. Connection of a UV reactor 26
6.2.4. Phosphate precipitation with metering pump 26
7. Maintenance, Repair and Operation 28
7.1. Sludge Evacuation 28
7.2. Operating Instructions 29
8. Fault Messages and Troubleshooting 31
8.1. Fault Message on the Display 32
8.2. Unusual Water Levels -Troubleshooting 33
5

KLARO GmbH
6Original Operating Manual for KLARO Small Wastewater Treatment Plant V.15.07
1. About this Operating Manual
This manual is part of the product and must be read before commissioning of the plant.
Retain this Operating Manual during the entire life of the plant and keep it available for future reference.
1.1. Original Language of Documentation
This documentation has been written in the German language in the original.
Copyright
© KLARO GmbH
Spitzwegstrasse 63
D-95447 Bayreuth
Technical Assistance: [phone]
E-Mail: [e-mail]
Web: www.klaro.eu
All rights expressly reserved. Reproduction or transmission to third parties, in whatever form, prohibited
without written permission by KLARO GmbH.
1.2. Completeness
This manual was created with due care. Any liability of the manufacturer due to incorrect or missing
information and linguistic or typographical errors in the documentation is excluded. If you notice any
omissions and/or errors, please let us know at the above address.
In compiling the instructions, care was taken to ensure maximum agreement of the facts set out therein
with the corresponding system. However, all specifications, dimensions, and illustrations in this manual
are non-binding. Possible claims for the concrete design of the system cannot be derived from this
information.
We reserve the right to make changes to the system in the context of improvements and enhancements
without changing these instructions. An obligation to install modified technology in already completed and
delivered systems cannot be derived from this information.
This documentation is updated regularly.
The following installation instructions must be observed and can be requested from KLARO GmbH if
required:
-MoAnl 01 I Cabinets
-MoAnl 02 A Cabinets
-MoAnl 03 KLARO Retrofit Kit Disc and Quick
-MoAnl 10 KLARO Retrofit Kit Flashing Light and Warning Light Buzzer
-MoAnl 11 Replacement Controller
-MoAnl 18 Submersible Pump as Clear Water Lifter
-MoAnl 19 Factory Calibration Controller
-MoAnl 20 Submersible Pump for Additional Buffer
Date of print: 06.2015
KLARO GmbH
2Original Operating Manual for KLARO Small Wastewater Treatment Plant V.15.07
IMPORTANT:
•This Operating Manual contains information about the plant, from installation
to maintenance, and must therefore be read before commissioning of the
plant!
•All safety instructions must be observed!
•The Operating Manual must be kept readily available during the operation of
the plant!
Plant Specifications
For any questions in the course of the operation of the plant, the specifications of your plant should
be noted as follows. With the help of this information, our staff will be able to help you more quickly
in the event of a malfunction. The specifications can be found on the nameplate, which is located
on the outside of the cabinet door for indoor cabinets, and inside the cabinet for outdoor cabinets.
Small Wastewater Treatment
Plant
PT
Sludge storage
Buffer
SB-Reactor
Approval No.:
Process class:
Certified:
Cabinet:
Co
ntroller:
Compressor:
Denomination:
Serial No.
:
Article No.:
Additional module:
Article No.:
El. Connected load:
KLARO GmbH
2Original Operating Manual for KLARO Small Wastewater Treatment Plant V.15.07
IMPORTANT:
•This Operating Manual contains information about the plant, from installation
to maintenance, and must therefore be read before commissioning of the
plant!
•All safety instructions must be observed!
•The Operating Manual must be kept readily available during the operation of
the plant!
Plant Specifications
For any questions in the course of the operation of the plant, the specifications of your plant should
be noted as follows. With the help of this information, our staff will be able to help you more quickly
in the event of a malfunction. The specifications can be found on the nameplate, which is located
on the outside of the cabinet door for indoor cabinets, and inside the cabinet for outdoor cabinets.
Small Wastewater Treatment
Plant
PT
Sludge storage
Buffer
SB-Reactor
Approval No.:
Process class:
Certified:
Cabinet:
Co
ntroller:
Compressor:
Denomination:
Serial No.
:
Article No.:
Additional module:
Article No.:
El. Connected load:
6

KLARO GmbH
6Original Operating Manual for KLARO Small Wastewater Treatment Plant V.15.07
1. About this Operating Manual
This manual is part of the product and must be read before commissioning of the plant.
Retain this Operating Manual during the entire life of the plant and keep it available for future reference.
1.1. Original Language of Documentation
This documentation has been written in the German language in the original.
Copyright
© KLARO GmbH
Spitzwegstrasse 63
D-95447 Bayreuth
Technical Assistance: [phone]
E-Mail: [e-mail]
Web: www.klaro.eu
All rights expressly reserved. Reproduction or transmission to third parties, in whatever form, prohibited
without written permission by KLARO GmbH.
1.2. Completeness
This manual was created with due care. Any liability of the manufacturer due to incorrect or missing
information and linguistic or typographical errors in the documentation is excluded. If you notice any
omissions and/or errors, please let us know at the above address.
In compiling the instructions, care was taken to ensure maximum agreement of the facts set out therein
with the corresponding system. However, all specifications, dimensions, and illustrations in this manual
are non-binding. Possible claims for the concrete design of the system cannot be derived from this
information.
We reserve the right to make changes to the system in the context of improvements and enhancements
without changing these instructions. An obligation to install modified technology in already completed and
delivered systems cannot be derived from this information.
This documentation is updated regularly.
The following installation instructions must be observed and can be requested from KLARO GmbH if
required:
-MoAnl 01 I Cabinets
-MoAnl 02 A Cabinets
-MoAnl 03 KLARO Retrofit Kit Disc and Quick
-MoAnl 10 KLARO Retrofit Kit Flashing Light and Warning Light Buzzer
-MoAnl 11 Replacement Controller
-MoAnl 18 Submersible Pump as Clear Water Lifter
-MoAnl 19 Factory Calibration Controller
-MoAnl 20 Submersible Pump for Additional Buffer
Date of print: 06.2015
KLARO GmbH
Original Operating Manual for KLARO Small Wastewater Treatment Plant V.15.07 7
1.3. Liability
Any liability of the manufacturer is excluded in the event of:
•Non-compliance with, or inadequate use of, the information in this manual,
•Use of spare parts or parts in the system that are not approved by KLARO GmbH,
•Improper operation of the treatment plant,
•Removal of, tampering with, or bypassing of safety devices,
•Unauthorized changes to the system,
•Improper execution of maintenance and spare parts installation.
Unauthorised modifications to the system or operation of the system outside the specifications made by
the manufacturer will void any warranty claims.
2. Safety
This section contains information on safety measures and residual risks. Read this chapter carefully
before using the plant to ensure safety in handling of the plant as far as possible.
2.1. Explanation of Warnings and Prohibitions
Hazard warning
Warning of dangerous electrical voltage
Warning of danger of falling
Warning of hot surfaces
Warning of hand injuries
Warning of explosive atmospheres
Prohibition of fire, open flames, and smoking
KLARO GmbH
2Original Operating Manual for KLARO Small Wastewater Treatment Plant V.15.07
IMPORTANT:
•This Operating Manual contains information about the plant, from installation
to maintenance, and must therefore be read before commissioning of the
plant!
•All safety instructions must be observed!
•The Operating Manual must be kept readily available during the operation of
the plant!
Plant Specifications
For any questions in the course of the operation of the plant, the specifications of your plant should
be noted as follows. With the help of this information, our staff will be able to help you more quickly
in the event of a malfunction. The specifications can be found on the nameplate, which is located
on the outside of the cabinet door for indoor cabinets, and inside the cabinet for outdoor cabinets.
Small Wastewater Treatment
Plant
PT
Sludge storage
Buffer
SB-Reactor
Approval No.:
Process class:
Certified:
Cabinet:
Co
ntroller:
Compressor:
Denomination:
Serial No.
:
Article No.:
Additional module:
Article No.:
El. Connected load:
KLARO GmbH
Original Operating Manual for KLARO Small Wastewater Treatment Plant V.15.07 3
CONTENTS Page
1. About this Operating Manual 6
1.1. Original Language of Documentation 6
1.2. Completeness 6
1.3. Liability 7
2. Safety 7
2.1. Explanation of Warnings and Prohibitions 7
2.2. Hazard statements 8
2.3. Warnings 9
2.4. Exclusion for Use 10
3. Warranty 10
4. Function of the SBR Plant 10
4.1. Plants for carbon elimination (process classes C) 11
4.2. Systems with Additional Nitrogen Removal (Process Classes N and D) 13
4.3. Systems with Additional Phosphate Elimination (Process Class +P) 13
4.4. Systems with Additional Sanitation (Process Class +S) 13
5. Control of the Small Wastewater Treatment Plant 13
5.1. Connections to the KL-controls (230V option for solenoid valves) 16
5.2. Connections to the KL24 controller(24V option for stepper motor valves) 16
5.3. Operating the Controller 18
5.3.1. Querying Operating Hours 18
5.3.2. Manual Control of the Valves and the Cabinet Fan in "Manual Mode" 19
5.3.3. Setting Date/Time 20
5.3.4. Set Holiday Mode 20
5.3.5. Query Malfunctions -Query Old Malfunctions 21
5.3.6. Display Settings 21
5.3.7. Service Menu and Action Code 21
5.4. Changing the Fuses 22
5.5. Operation of Power Failure Detector 22
6. Additional functions of the Controllers KLplus/ KL24plus and KLbasic/KL24base 23
6.1. Underload detection (KLplus/KL24plus) 23
6.1.1. Mode of Operation 24
6.1.2. Commissioning 24
6.1.3. Switching Off the Level Measurement 25
6.1.4. Safety and Fault Messages25
6.2. Optional Functions 26
6.2.1. Connection of an external alarm device 26
6.2.2. Connection of a contactor for switching the compressor 26
6.2.3. Connection of a UV reactor 26
6.2.4. Phosphate precipitation with metering pump 26
7. Maintenance, Repair and Operation 28
7.1. Sludge Evacuation 28
7.2. Operating Instructions 29
8. Fault Messages and Troubleshooting 31
8.1. Fault Message on the Display 32
8.2. Unusual Water Levels -Troubleshooting 33
KLARO GmbH
2Original Operating Manual for KLARO Small Wastewater Treatment Plant V.15.07
IMPORTANT:
•This Operating Manual contains information about the plant, from installation
to maintenance, and must therefore be read before commissioning of the
plant!
•All safety instructions must be observed!
•The Operating Manual must be kept readily available during the operation of
the plant!
Plant Specifications
For any questions in the course of the operation of the plant, the specifications of your plant should
be noted as follows. With the help of this information, our staff will be able to help you more quickly
in the event of a malfunction. The specifications can be found on the nameplate, which is located
on the outside of the cabinet door for indoor cabinets, and inside the cabinet for outdoor cabinets.
Small Wastewater Treatment
Plant
PT
Sludge storage
Buffer
SB-Reactor
Approval No.:
Process class:
Certified:
Cabinet:
Co
ntroller:
Compressor:
Denomination:
Serial No.
:
Article No.:
Additional module:
Article No.:
El. Connected load:
KLARO GmbH
Original Operating Manual for KLARO Small Wastewater Treatment Plant V.15.07 3
CONTENTS Page
1. About this Operating Manual 6
1.1. Original Language of Documentation 6
1.2. Completeness 6
1.3. Liability 7
2. Safety 7
2.1. Explanation of Warnings and Prohibitions 7
2.2. Hazard statements 8
2.3. Warnings 9
2.4. Exclusion for Use 10
3. Warranty 10
4. Function of the SBR Plant 10
4.1. Plants for carbon elimination (process classes C) 11
4.2. Systems with Additional Nitrogen Removal (Process Classes N and D) 13
4.3. Systems with Additional Phosphate Elimination (Process Class +P) 13
4.4. Systems with Additional Sanitation (Process Class +S) 13
5. Control of the Small Wastewater Treatment Plant 13
5.1. Connections to the KL-controls (230V option for solenoid valves) 16
5.2. Connections to the KL24 controller(24V option for stepper motor valves) 16
5.3. Operating the Controller 18
5.3.1. Querying Operating Hours 18
5.3.2. Manual Control of the Valves and the Cabinet Fan in "Manual Mode" 19
5.3.3. Setting Date/Time 20
5.3.4. Set Holiday Mode 20
5.3.5. Query Malfunctions -Query Old Malfunctions 21
5.3.6. Display Settings 21
5.3.7. Service Menu and Action Code 21
5.4. Changing the Fuses 22
5.5. Operation of Power Failure Detector 22
6. Additional functions of the Controllers KLplus/ KL24plus and KLbasic/KL24base 23
6.1. Underload detection (KLplus/KL24plus) 23
6.1.1. Mode of Operation 24
6.1.2. Commissioning 24
6.1.3. Switching Off the Level Measurement 25
6.1.4. Safety and Fault Messages25
6.2. Optional Functions 26
6.2.1. Connection of an external alarm device 26
6.2.2. Connection of a contactor for switching the compressor 26
6.2.3. Connection of a UV reactor 26
6.2.4. Phosphate precipitation with metering pump 26
7. Maintenance, Repair and Operation 28
7.1. Sludge Evacuation 28
7.2. Operating Instructions 29
8. Fault Messages and Troubleshooting 31
8.1. Fault Message on the Display 32
8.2. Unusual Water Levels -Troubleshooting 33
7

KLARO GmbH
8Original Operating Manual for KLARO Small Wastewater Treatment Plant V.15.07
2.2. Hazard statements
1. To ensure safety, all persons coming into direct contact with the plant must take note of the
contents of this documentation.
2. It is prohibited to use the system for a purpose other than that described by the manufacturer.
3. Locally applicable labour and safety regulations and laws must be followed even if they are not
explicitly listed in this guide. The same applies to environmental legislation.
4. If the operator detects faults or dangers, the manufacturer or the responsible maintenance
company must be informed immediately.
5. Safety devices must never be removed or bypassed during normal operation of the machine.
Safety devices may be temporarily bridged or disabled only by maintenance staff during repair
and maintenance.
6. When handling chemical substances, contact with chemicals should be avoided where possible.
Before beginning work with these substances, the instructions on the package must be read
and followed.
7. If the use of personal protective equipment (safety shoes, safety glasses, gloves, ear protection,
etc.) is required, it must be ensured that it will be used. Defective or damaged personal
protective equipment must be replaced immediately with properly functional protection.
8. Work on electrical installations may only be performed by qualified personnel.
9. All safety instructions and warnings on the machine must be kept in easily legible condition.
10. Hot parts must not come into contact with explosive or flammable chemicals.
11. Do not place objects filled with liquids on electrical cabinets; spillage of liquid can cause short
circuits.
12. The system must not be operated under the influence of alcohol (be careful about any residual
alcohol from the previous day!) or of medication affecting perception and responsiveness.
13. Before any maintenance and cleaning work, the plant must be de-energized.
14. The plant must always be left running, except for maintenance purposes, because proper
wastewater treatment cannot be ensured otherwise.
KLARO GmbH
2Original Operating Manual for KLARO Small Wastewater Treatment Plant V.15.07
IMPORTANT:
•This Operating Manual contains information about the plant, from installation
to maintenance, and must therefore be read before commissioning of the
plant!
•All safety instructions must be observed!
•The Operating Manual must be kept readily available during the operation of
the plant!
Plant Specifications
For any questions in the course of the operation of the plant, the specifications of your plant should
be noted as follows. With the help of this information, our staff will be able to help you more quickly
in the event of a malfunction. The specifications can be found on the nameplate, which is located
on the outside of the cabinet door for indoor cabinets, and inside the cabinet for outdoor cabinets.
Small Wastewater Treatment
Plant
PT
Sludge storage
Buffer
SB-Reactor
Approval No.:
Process class:
Certified:
Cabinet:
Co
ntroller:
Compressor:
Denomination:
Serial No.
:
Article No.:
Additional module:
Article No.:
El. Connected load:
KLARO GmbH
2Original Operating Manual for KLARO Small Wastewater Treatment Plant V.15.07
IMPORTANT:
•This Operating Manual contains information about the plant, from installation
to maintenance, and must therefore be read before commissioning of the
plant!
•All safety instructions must be observed!
•The Operating Manual must be kept readily available during the operation of
the plant!
Plant Specifications
For any questions in the course of the operation of the plant, the specifications of your plant should
be noted as follows. With the help of this information, our staff will be able to help you more quickly
in the event of a malfunction. The specifications can be found on the nameplate, which is located
on the outside of the cabinet door for indoor cabinets, and inside the cabinet for outdoor cabinets.
Small Wastewater Treatment
Plant
PT
Sludge storage
Buffer
SB-Reactor
Approval No.:
Process class:
Certified:
Cabinet:
Co
ntroller:
Compressor:
Denomination:
Serial No.
:
Article No.:
Additional module:
Article No.:
El. Connected load:
8

KLARO GmbH
8Original Operating Manual for KLARO Small Wastewater Treatment Plant V.15.07
2.2. Hazard statements
1. To ensure safety, all persons coming into direct contact with the plant must take note of the
contents of this documentation.
2. It is prohibited to use the system for a purpose other than that described by the manufacturer.
3. Locally applicable labour and safety regulations and laws must be followed even if they are not
explicitly listed in this guide. The same applies to environmental legislation.
4. If the operator detects faults or dangers, the manufacturer or the responsible maintenance
company must be informed immediately.
5. Safety devices must never be removed or bypassed during normal operation of the machine.
Safety devices may be temporarily bridged or disabled only by maintenance staff during repair
and maintenance.
6. When handling chemical substances, contact with chemicals should be avoided where possible.
Before beginning work with these substances, the instructions on the package must be read
and followed.
7. If the use of personal protective equipment (safety shoes, safety glasses, gloves, ear protection,
etc.) is required, it must be ensured that it will be used. Defective or damaged personal
protective equipment must be replaced immediately with properly functional protection.
8. Work on electrical installations may only be performed by qualified personnel.
9. All safety instructions and warnings on the machine must be kept in easily legible condition.
10. Hot parts must not come into contact with explosive or flammable chemicals.
11. Do not place objects filled with liquids on electrical cabinets; spillage of liquid can cause short
circuits.
12. The system must not be operated under the influence of alcohol (be careful about any residual
alcohol from the previous day!) or of medication affecting perception and responsiveness.
13. Before any maintenance and cleaning work, the plant must be de-energized.
14. The plant must always be left running, except for maintenance purposes, because proper
wastewater treatment cannot be ensured otherwise.
KLARO GmbH
Original Operating Manual for KLARO Small Wastewater Treatment Plant V.15.07 9
2.3. Warnings
Always observe these instructions as personal injury or property damage may result otherwise!
Installation Site
Make sure that the machine cabinet is not installed above or in the immediate
vicinity of water vessels. Risk of electric shock in case of improper installation.
Electrical Supply
Circuit
Always connect the machine cabinet to a properly installed 230 V socket or
grounded socket that is protected with a 16A fuse in accordance with the
technical specifications.
In the event of a thunderstorm, electrical equipment connected to the mains
may be damaged. An overvoltage protection device in the building installation
is recommended as protection.
The connection lines must be laid in a manner that they do not present a
tripping hazard.
Explosive
Atmospheres
The controller must not be installed or switched on in environments with a
potentially explosive atmosphere or in places where combustible materials are
present. Sparks in such environments could cause explosion or fire, which can
lead to injury or death.
Interferences
The controller can cause a malfunction in medical equipment. The device
should therefore not be used near medical equipment.
Damages
The controller must not be operated if the housing or the insulation of a line is
damaged or dented.
Service Work
Servicing of the machine cabinet must be carried out by authorized personnel
or qualified electricians.
Power Supply
The power supply must be permanently ensured. Please make sure that the
control cabinet is secured by a proper fuse (16 A). Additional power consumers
on the same fuse may cause undesired operation.
KLARO GmbH
2Original Operating Manual for KLARO Small Wastewater Treatment Plant V.15.07
IMPORTANT:
•This Operating Manual contains information about the plant, from installation
to maintenance, and must therefore be read before commissioning of the
plant!
•All safety instructions must be observed!
•The Operating Manual must be kept readily available during the operation of
the plant!
Plant Specifications
For any questions in the course of the operation of the plant, the specifications of your plant should
be noted as follows. With the help of this information, our staff will be able to help you more quickly
in the event of a malfunction. The specifications can be found on the nameplate, which is located
on the outside of the cabinet door for indoor cabinets, and inside the cabinet for outdoor cabinets.
Small Wastewater Treatment
Plant
PT
Sludge storage
Buffer
SB-Reactor
Approval No.:
Process class:
Certified:
Cabinet:
Co
ntroller:
Compressor:
Denomination:
Serial No.
:
Article No.:
Additional module:
Article No.:
El. Connected load:
KLARO GmbH
Original Operating Manual for KLARO Small Wastewater Treatment Plant V.15.07 3
CONTENTS Page
1. About this Operating Manual 6
1.1. Original Language of Documentation 6
1.2. Completeness 6
1.3. Liability 7
2. Safety 7
2.1. Explanation of Warnings and Prohibitions 7
2.2. Hazard statements 8
2.3. Warnings 9
2.4. Exclusion for Use 10
3. Warranty 10
4. Function of the SBR Plant 10
4.1. Plants for carbon elimination (process classes C) 11
4.2. Systems with Additional Nitrogen Removal (Process Classes N and D) 13
4.3. Systems with Additional Phosphate Elimination (Process Class +P) 13
4.4. Systems with Additional Sanitation (Process Class +S) 13
5. Control of the Small Wastewater Treatment Plant 13
5.1. Connections to the KL-controls (230V option for solenoid valves) 16
5.2. Connections to the KL24 controller(24V option for stepper motor valves) 16
5.3. Operating the Controller 18
5.3.1. Querying Operating Hours 18
5.3.2. Manual Control of the Valves and the Cabinet Fan in "Manual Mode" 19
5.3.3. Setting Date/Time 20
5.3.4. Set Holiday Mode 20
5.3.5. Query Malfunctions -Query Old Malfunctions 21
5.3.6. Display Settings 21
5.3.7. Service Menu and Action Code 21
5.4. Changing the Fuses 22
5.5. Operation of Power Failure Detector 22
6. Additional functions of the Controllers KLplus/ KL24plus and KLbasic/KL24base 23
6.1. Underload detection (KLplus/KL24plus) 23
6.1.1. Mode of Operation 24
6.1.2. Commissioning 24
6.1.3. Switching Off the Level Measurement 25
6.1.4. Safety and Fault Messages25
6.2. Optional Functions 26
6.2.1. Connection of an external alarm device 26
6.2.2. Connection of a contactor for switching the compressor 26
6.2.3. Connection of a UV reactor 26
6.2.4. Phosphate precipitation with metering pump 26
7. Maintenance, Repair and Operation 28
7.1. Sludge Evacuation 28
7.2. Operating Instructions 29
8. Fault Messages and Troubleshooting 31
8.1. Fault Message on the Display 32
8.2. Unusual Water Levels -Troubleshooting 33
KLARO GmbH
2Original Operating Manual for KLARO Small Wastewater Treatment Plant V.15.07
IMPORTANT:
•This Operating Manual contains information about the plant, from installation
to maintenance, and must therefore be read before commissioning of the
plant!
•All safety instructions must be observed!
•The Operating Manual must be kept readily available during the operation of
the plant!
Plant Specifications
For any questions in the course of the operation of the plant, the specifications of your plant should
be noted as follows. With the help of this information, our staff will be able to help you more quickly
in the event of a malfunction. The specifications can be found on the nameplate, which is located
on the outside of the cabinet door for indoor cabinets, and inside the cabinet for outdoor cabinets.
Small Wastewater Treatment
Plant
PT
Sludge storage
Buffer
SB-Reactor
Approval No.:
Process class:
Certified:
Cabinet:
Co
ntroller:
Compressor:
Denomination:
Serial No.
:
Article No.:
Additional module:
Article No.:
El. Connected load:
KLARO GmbH
Original Operating Manual for KLARO Small Wastewater Treatment Plant V.15.07 3
CONTENTS Page
1. About this Operating Manual 6
1.1. Original Language of Documentation 6
1.2. Completeness 6
1.3. Liability 7
2. Safety 7
2.1. Explanation of Warnings and Prohibitions 7
2.2. Hazard statements 8
2.3. Warnings 9
2.4. Exclusion for Use 10
3. Warranty 10
4. Function of the SBR Plant 10
4.1. Plants for carbon elimination (process classes C) 11
4.2. Systems with Additional Nitrogen Removal (Process Classes N and D) 13
4.3. Systems with Additional Phosphate Elimination (Process Class +P) 13
4.4. Systems with Additional Sanitation (Process Class +S) 13
5. Control of the Small Wastewater Treatment Plant 13
5.1. Connections to the KL-controls (230V option for solenoid valves) 16
5.2. Connections to the KL24 controller(24V option for stepper motor valves) 16
5.3. Operating the Controller 18
5.3.1. Querying Operating Hours 18
5.3.2. Manual Control of the Valves and the Cabinet Fan in "Manual Mode" 19
5.3.3. Setting Date/Time 20
5.3.4. Set Holiday Mode 20
5.3.5. Query Malfunctions -Query Old Malfunctions 21
5.3.6. Display Settings 21
5.3.7. Service Menu and Action Code 21
5.4. Changing the Fuses 22
5.5. Operation of Power Failure Detector 22
6. Additional functions of the Controllers KLplus/ KL24plus and KLbasic/KL24base 23
6.1. Underload detection (KLplus/KL24plus) 23
6.1.1. Mode of Operation 24
6.1.2. Commissioning 24
6.1.3. Switching Off the Level Measurement 25
6.1.4. Safety and Fault Messages25
6.2. Optional Functions 26
6.2.1. Connection of an external alarm device 26
6.2.2. Connection of a contactor for switching the compressor 26
6.2.3. Connection of a UV reactor 26
6.2.4. Phosphate precipitation with metering pump 26
7. Maintenance, Repair and Operation 28
7.1. Sludge Evacuation 28
7.2. Operating Instructions 29
8. Fault Messages and Troubleshooting 31
8.1. Fault Message on the Display 32
8.2. Unusual Water Levels -Troubleshooting 33
9

KLARO GmbH
10 Original Operating Manual for KLARO Small Wastewater Treatment Plant V.15.07
2.4. Exclusion for Use
The controller has been specially developed for use in SBR small wastewater treatment plants. The
controller must not be used in areas that pose a threat to life and limb:
•Control of machines, vehicles, and safety processes,
•Research technology in handling of hazardous substances,
•Medical technology,
•Nuclear power engineering,
•etc.
3. Warranty
The plant/conversion kit has been dimensioned and manufactured according to the state of the art. The
product has left the factory in a faultless condition. As part of the warranty, defects due to manufacturing
or the material will be repaired free of charge. These defects must have demonstrably occurred in spite
of correct installation and compliance with the conditions of use in accordance with these installation
instructions. After delivery, please inspect the controller for any damage. In the event of defects, please
contact your contractors/dealer immediately with a description of the defect and the plant identification.
Our terms and conditions are binding.
We expressly state that the warranty is void in the event of:
•Improper installation,
•Unconventional use,
•Deluge,
•Lightning and other overvoltages.
4. Function of the SBR Plant
KLARO and KLARO Easy are fully biological small wastewater treatment plants, operating on the
principle of the SBR process (activated sludge plant with sequencing batch reactor) . The SBR plant is
designed for the treatment of the entire household wastewater. The introduction of other wastewater, for
example, the wastewater from restaurants and/or business entities, etc., is permissible if this use was
already known and taken into account during the design of the plant.
Biocides, toxic, or biologically incompatible substances must not enter into the system as they interfere
with bacteria, important for wastewater treatment, and cause biological process problems (detailed
information found on the following pages).
Operation in accordance with our operating and maintenance instructions is essential for compliance with
regulatory treatment requirements. You can find these instructions on the following pages.
The system essentially consists of 2 stages: A sludge storage with integrated pre-buffer and an activated
sludge stage in a closed sequencing batch reactor (SBR).
The upstream sludge storage with integrated buffer has the following functions:
-Storage of primary and secondary sludge,
-Retention of settling solids and floating substances,
-Storage of feed water,
KLARO GmbH
Original Operating Manual for KLARO Small Wastewater Treatment Plant V.15.07 11
-Balance of volume and concentration-related fluctuations in the wastewater inflow.
The wastewater treatment plant operation takes place via a microprocessor controller, which controls the
air compressor and the air distributor for the various lifters via solenoid valves.
Your responsible Commissioner for Water Authority has established limit values for the water quality of
the treated wastewater. Accordingly, you have purchased a system with the process class that safely
complies with those limits.
Process
Class
CSB BOD5NH4-N Nanorg AFS FC germs Ptot
[mg/l]
[mg/l]
[mg/l]
[mg/l]
[mg/l]
[ml]
[mg/l]
C
≤ 150
≤ 40
-
-
≤ 75
-
-
N
≤ 90
≤ 20
≤ 10
-
≤ 50
-
-
D
≤ 90
≤ 20
≤ 10
≤ 25
≤ 50
-
-
+S
-
-
-
-
-
≤ 100/100
-
+P
-
-
-
-
-
-
≤ 2
•Process class C: Carbon reduction
•Process class N: Carbon reduction and additional nitrification
•Process class D: Carbon reduction, nitrification, and denitrification
•Process class P: with additional means for phosphorus elimination
•Process class H: with additional means for sanitation of effluent water
4.1. Plants for carbon elimination (process classes C)
The process is a sequence of 5 steps, which take place successively in time and are repeated several
times a day (usually 4 times).
-Step 1 (valve 1): Charging
-The raw wastewater temporarily stored in the sludge storage is fed to the SBR via an airlift. The
airlift is positioned so that only solid-free water is pumped. Through the special design of the
lifter, a minimum water level is guaranteed in the sludge storage. Limiting the water level through
other components (e.g., a float switch) is therefore not required.
KLARO GmbH
2Original Operating Manual for KLARO Small Wastewater Treatment Plant V.15.07
IMPORTANT:
•This Operating Manual contains information about the plant, from installation
to maintenance, and must therefore be read before commissioning of the
plant!
•All safety instructions must be observed!
•The Operating Manual must be kept readily available during the operation of
the plant!
Plant Specifications
For any questions in the course of the operation of the plant, the specifications of your plant should
be noted as follows. With the help of this information, our staff will be able to help you more quickly
in the event of a malfunction. The specifications can be found on the nameplate, which is located
on the outside of the cabinet door for indoor cabinets, and inside the cabinet for outdoor cabinets.
Small Wastewater Treatment
Plant
PT
Sludge storage
Buffer
SB-Reactor
Approval No.:
Process class:
Certified:
Cabinet:
Co
ntroller:
Compressor:
Denomination:
Serial No.
:
Article No.:
Additional module:
Article No.:
El. Connected load:
KLARO GmbH
2Original Operating Manual for KLARO Small Wastewater Treatment Plant V.15.07
IMPORTANT:
•This Operating Manual contains information about the plant, from installation
to maintenance, and must therefore be read before commissioning of the
plant!
•All safety instructions must be observed!
•The Operating Manual must be kept readily available during the operation of
the plant!
Plant Specifications
For any questions in the course of the operation of the plant, the specifications of your plant should
be noted as follows. With the help of this information, our staff will be able to help you more quickly
in the event of a malfunction. The specifications can be found on the nameplate, which is located
on the outside of the cabinet door for indoor cabinets, and inside the cabinet for outdoor cabinets.
Small Wastewater Treatment
Plant
PT
Sludge storage
Buffer
SB-Reactor
Approval No.:
Process class:
Certified:
Cabinet:
Co
ntroller:
Compressor:
Denomination:
Serial No.
:
Article No.:
Additional module:
Article No.:
El. Connected load:
10

KLARO GmbH
10 Original Operating Manual for KLARO Small Wastewater Treatment Plant V.15.07
2.4. Exclusion for Use
The controller has been specially developed for use in SBR small wastewater treatment plants. The
controller must not be used in areas that pose a threat to life and limb:
•Control of machines, vehicles, and safety processes,
•Research technology in handling of hazardous substances,
•Medical technology,
•Nuclear power engineering,
•etc.
3. Warranty
The plant/conversion kit has been dimensioned and manufactured according to the state of the art. The
product has left the factory in a faultless condition. As part of the warranty, defects due to manufacturing
or the material will be repaired free of charge. These defects must have demonstrably occurred in spite
of correct installation and compliance with the conditions of use in accordance with these installation
instructions. After delivery, please inspect the controller for any damage. In the event of defects, please
contact your contractors/dealer immediately with a description of the defect and the plant identification.
Our terms and conditions are binding.
We expressly state that the warranty is void in the event of:
•Improper installation,
•Unconventional use,
•Deluge,
•Lightning and other overvoltages.
4. Function of the SBR Plant
KLARO and KLARO Easy are fully biological small wastewater treatment plants, operating on the
principle of the SBR process (activated sludge plant with sequencing batch reactor) . The SBR plant is
designed for the treatment of the entire household wastewater. The introduction of other wastewater, for
example, the wastewater from restaurants and/or business entities, etc., is permissible if this use was
already known and taken into account during the design of the plant.
Biocides, toxic, or biologically incompatible substances must not enter into the system as they interfere
with bacteria, important for wastewater treatment, and cause biological process problems (detailed
information found on the following pages).
Operation in accordance with our operating and maintenance instructions is essential for compliance with
regulatory treatment requirements. You can find these instructions on the following pages.
The system essentially consists of 2 stages: A sludge storage with integrated pre-buffer and an activated
sludge stage in a closed sequencing batch reactor (SBR).
The upstream sludge storage with integrated buffer has the following functions:
-Storage of primary and secondary sludge,
-Retention of settling solids and floating substances,
-Storage of feed water,
KLARO GmbH
Original Operating Manual for KLARO Small Wastewater Treatment Plant V.15.07 11
-Balance of volume and concentration-related fluctuations in the wastewater inflow.
The wastewater treatment plant operation takes place via a microprocessor controller, which controls the
air compressor and the air distributor for the various lifters via solenoid valves.
Your responsible Commissioner for Water Authority has established limit values for the water quality of
the treated wastewater. Accordingly, you have purchased a system with the process class that safely
complies with those limits.
Process
Class
CSB BOD5NH4-N Nanorg AFS FC germs Ptot
[mg/l]
[mg/l]
[mg/l]
[mg/l]
[mg/l]
[ml]
[mg/l]
C
≤ 150
≤ 40
-
-
≤ 75
-
-
N
≤ 90
≤ 20
≤ 10
-
≤ 50
-
-
D
≤ 90
≤ 20
≤ 10
≤ 25
≤ 50
-
-
+S
-
-
-
-
-
≤ 100/100
-
+P
-
-
-
-
-
-
≤ 2
•Process class C: Carbon reduction
•Process class N: Carbon reduction and additional nitrification
•Process class D: Carbon reduction, nitrification, and denitrification
•Process class P: with additional means for phosphorus elimination
•Process class H: with additional means for sanitation of effluent water
4.1. Plants for carbon elimination (process classes C)
The process is a sequence of 5 steps, which take place successively in time and are repeated several
times a day (usually 4 times).
-Step 1 (valve 1): Charging
-The raw wastewater temporarily stored in the sludge storage is fed to the SBR via an airlift. The
airlift is positioned so that only solid-free water is pumped. Through the special design of the
lifter, a minimum water level is guaranteed in the sludge storage. Limiting the water level through
other components (e.g., a float switch) is therefore not required.
KLARO GmbH
2Original Operating Manual for KLARO Small Wastewater Treatment Plant V.15.07
IMPORTANT:
•This Operating Manual contains information about the plant, from installation
to maintenance, and must therefore be read before commissioning of the
plant!
•All safety instructions must be observed!
•The Operating Manual must be kept readily available during the operation of
the plant!
Plant Specifications
For any questions in the course of the operation of the plant, the specifications of your plant should
be noted as follows. With the help of this information, our staff will be able to help you more quickly
in the event of a malfunction. The specifications can be found on the nameplate, which is located
on the outside of the cabinet door for indoor cabinets, and inside the cabinet for outdoor cabinets.
Small Wastewater Treatment
Plant
PT
Sludge storage
Buffer
SB-Reactor
Approval No.:
Process class:
Certified:
Cabinet:
Co
ntroller:
Compressor:
Denomination:
Serial No.
:
Article No.:
Additional module:
Article No.:
El. Connected load:
KLARO GmbH
Original Operating Manual for KLARO Small Wastewater Treatment Plant V.15.07 3
CONTENTS Page
1. About this Operating Manual 6
1.1. Original Language of Documentation 6
1.2. Completeness 6
1.3. Liability 7
2. Safety 7
2.1. Explanation of Warnings and Prohibitions 7
2.2. Hazard statements 8
2.3. Warnings 9
2.4. Exclusion for Use 10
3. Warranty 10
4. Function of the SBR Plant 10
4.1. Plants for carbon elimination (process classes C) 11
4.2. Systems with Additional Nitrogen Removal (Process Classes N and D) 13
4.3. Systems with Additional Phosphate Elimination (Process Class +P) 13
4.4. Systems with Additional Sanitation (Process Class +S) 13
5. Control of the Small Wastewater Treatment Plant 13
5.1. Connections to the KL-controls (230V option for solenoid valves) 16
5.2. Connections to the KL24 controller(24V option for stepper motor valves) 16
5.3. Operating the Controller 18
5.3.1. Querying Operating Hours 18
5.3.2. Manual Control of the Valves and the Cabinet Fan in "Manual Mode" 19
5.3.3. Setting Date/Time 20
5.3.4. Set Holiday Mode 20
5.3.5. Query Malfunctions -Query Old Malfunctions 21
5.3.6. Display Settings 21
5.3.7. Service Menu and Action Code 21
5.4. Changing the Fuses 22
5.5. Operation of Power Failure Detector 22
6. Additional functions of the Controllers KLplus/ KL24plus and KLbasic/KL24base 23
6.1. Underload detection (KLplus/KL24plus) 23
6.1.1. Mode of Operation 24
6.1.2. Commissioning 24
6.1.3. Switching Off the Level Measurement 25
6.1.4. Safety and Fault Messages25
6.2. Optional Functions 26
6.2.1. Connection of an external alarm device 26
6.2.2. Connection of a contactor for switching the compressor 26
6.2.3. Connection of a UV reactor 26
6.2.4. Phosphate precipitation with metering pump 26
7. Maintenance, Repair and Operation 28
7.1. Sludge Evacuation 28
7.2. Operating Instructions 29
8. Fault Messages and Troubleshooting 31
8.1. Fault Message on the Display 32
8.2. Unusual Water Levels -Troubleshooting 33
KLARO GmbH
2Original Operating Manual for KLARO Small Wastewater Treatment Plant V.15.07
IMPORTANT:
•This Operating Manual contains information about the plant, from installation
to maintenance, and must therefore be read before commissioning of the
plant!
•All safety instructions must be observed!
•The Operating Manual must be kept readily available during the operation of
the plant!
Plant Specifications
For any questions in the course of the operation of the plant, the specifications of your plant should
be noted as follows. With the help of this information, our staff will be able to help you more quickly
in the event of a malfunction. The specifications can be found on the nameplate, which is located
on the outside of the cabinet door for indoor cabinets, and inside the cabinet for outdoor cabinets.
Small Wastewater Treatment
Plant
PT
Sludge storage
Buffer
SB-Reactor
Approval No.:
Process class:
Certified:
Cabinet:
Co
ntroller:
Compressor:
Denomination:
Serial No.
:
Article No.:
Additional module:
Article No.:
El. Connected load:
KLARO GmbH
Original Operating Manual for KLARO Small Wastewater Treatment Plant V.15.07 3
CONTENTS Page
1. About this Operating Manual 6
1.1. Original Language of Documentation 6
1.2. Completeness 6
1.3. Liability 7
2. Safety 7
2.1. Explanation of Warnings and Prohibitions 7
2.2. Hazard statements 8
2.3. Warnings 9
2.4. Exclusion for Use 10
3. Warranty 10
4. Function of the SBR Plant 10
4.1. Plants for carbon elimination (process classes C) 11
4.2. Systems with Additional Nitrogen Removal (Process Classes N and D) 13
4.3. Systems with Additional Phosphate Elimination (Process Class +P) 13
4.4. Systems with Additional Sanitation (Process Class +S) 13
5. Control of the Small Wastewater Treatment Plant 13
5.1. Connections to the KL-controls (230V option for solenoid valves) 16
5.2. Connections to the KL24 controller(24V option for stepper motor valves) 16
5.3. Operating the Controller 18
5.3.1. Querying Operating Hours 18
5.3.2. Manual Control of the Valves and the Cabinet Fan in "Manual Mode" 19
5.3.3. Setting Date/Time 20
5.3.4. Set Holiday Mode 20
5.3.5. Query Malfunctions -Query Old Malfunctions 21
5.3.6. Display Settings 21
5.3.7. Service Menu and Action Code 21
5.4. Changing the Fuses 22
5.5. Operation of Power Failure Detector 22
6. Additional functions of the Controllers KLplus/ KL24plus and KLbasic/KL24base 23
6.1. Underload detection (KLplus/KL24plus) 23
6.1.1. Mode of Operation 24
6.1.2. Commissioning 24
6.1.3. Switching Off the Level Measurement 25
6.1.4. Safety and Fault Messages25
6.2. Optional Functions 26
6.2.1. Connection of an external alarm device 26
6.2.2. Connection of a contactor for switching the compressor 26
6.2.3. Connection of a UV reactor 26
6.2.4. Phosphate precipitation with metering pump 26
7. Maintenance, Repair and Operation 28
7.1. Sludge Evacuation 28
7.2. Operating Instructions 29
8. Fault Messages and Troubleshooting 31
8.1. Fault Message on the Display 32
8.2. Unusual Water Levels -Troubleshooting 33
11

KLARO GmbH
12 Original Operating Manual for KLARO Small Wastewater Treatment Plant V.15.07
-Step 2 (valve 2): Aeration
In this step, the wastewater is aerated and mixed. Aeration is supplied via membrane tubes or
plates mounted on the chamber floor. The aerator of the plant is supplied with ambient air by an
externally
installed control
cabinet. The
required
compressed air is
created by an air
compressor.
Aeration is usually
operated
intermittently.
The aeration has
two effects
simultaneously:
•The microorganisms of the activated sludge are supplied with oxygen, which is necessary for
their metabolic activity and therefore for the reduction of pollutants,
•it creates close contact between wastewater and bacteria.
-Step 3: Settling Phase
This step is a resting phase, in which no aeration takes place. The activated sludge can settle
according to the principle of gravity (sedimentation phase). At the top, a clear water zone forms,
and at the bottom a sludge layer is formed. Any scum will be located above the clear water zone.
-Step 4 (valve 3): Clear Water Extractor
In this phase, the biologically treated wastewater (clear water) is sucked from the SBR stage.
This pumping action is performed by compressed air by the airlift principle (airlift). The airlift is
designed so that any scum occurring on the clear water layer is not pumped out. A minimum
water level in the SBR stage is maintained without further components.
-Step 5 (valve 4): Excess Sludge Withdrawal
In this step, the excess activated sludge is returned from the SBR reactor chamber into the
sludge storage chamber by the airlift, where it is stored. This excess sludge is drawn off near the
bottom of the SBR chamber.
Upon completion of this 5th step, the treatment process starts over with step 1.
4 of the cycles described above are normally performed daily. Individual adjustment of the switching
times and the number of cycles is possible in consultation with KLARO GmbH. This adjustment must be
performed by an authorized service contractor.
It is also possible to manually switch the system to holiday mode. The holiday mode is a greatly reduced
operating mode of the plant during longer periods without wastewater inflow.
Figure 1: Membrane Tube Diffusor Figure 2: Membrane Plate Diffusor
KLARO GmbH
2Original Operating Manual for KLARO Small Wastewater Treatment Plant V.15.07
IMPORTANT:
•This Operating Manual contains information about the plant, from installation
to maintenance, and must therefore be read before commissioning of the
plant!
•All safety instructions must be observed!
•The Operating Manual must be kept readily available during the operation of
the plant!
Plant Specifications
For any questions in the course of the operation of the plant, the specifications of your plant should
be noted as follows. With the help of this information, our staff will be able to help you more quickly
in the event of a malfunction. The specifications can be found on the nameplate, which is located
on the outside of the cabinet door for indoor cabinets, and inside the cabinet for outdoor cabinets.
Small Wastewater Treatment
Plant
PT
Sludge storage
Buffer
SB-Reactor
Approval No.:
Process class:
Certified:
Cabinet:
Co
ntroller:
Compressor:
Denomination:
Serial No.
:
Article No.:
Additional module:
Article No.:
El. Connected load:
KLARO GmbH
2Original Operating Manual for KLARO Small Wastewater Treatment Plant V.15.07
IMPORTANT:
•This Operating Manual contains information about the plant, from installation
to maintenance, and must therefore be read before commissioning of the
plant!
•All safety instructions must be observed!
•The Operating Manual must be kept readily available during the operation of
the plant!
Plant Specifications
For any questions in the course of the operation of the plant, the specifications of your plant should
be noted as follows. With the help of this information, our staff will be able to help you more quickly
in the event of a malfunction. The specifications can be found on the nameplate, which is located
on the outside of the cabinet door for indoor cabinets, and inside the cabinet for outdoor cabinets.
Small Wastewater Treatment
Plant
PT
Sludge storage
Buffer
SB-Reactor
Approval No.:
Process class:
Certified:
Cabinet:
Co
ntroller:
Compressor:
Denomination:
Serial No.
:
Article No.:
Additional module:
Article No.:
El. Connected load:
12

KLARO GmbH
12 Original Operating Manual for KLARO Small Wastewater Treatment Plant V.15.07
-Step 2 (valve 2): Aeration
In this step, the wastewater is aerated and mixed. Aeration is supplied via membrane tubes or
plates mounted on the chamber floor. The aerator of the plant is supplied with ambient air by an
externally
installed control
cabinet. The
required
compressed air is
created by an air
compressor.
Aeration is usually
operated
intermittently.
The aeration has
two effects
simultaneously:
•The microorganisms of the activated sludge are supplied with oxygen, which is necessary for
their metabolic activity and therefore for the reduction of pollutants,
•it creates close contact between wastewater and bacteria.
-Step 3: Settling Phase
This step is a resting phase, in which no aeration takes place. The activated sludge can settle
according to the principle of gravity (sedimentation phase). At the top, a clear water zone forms,
and at the bottom a sludge layer is formed. Any scum will be located above the clear water zone.
-Step 4 (valve 3): Clear Water Extractor
In this phase, the biologically treated wastewater (clear water) is sucked from the SBR stage.
This pumping action is performed by compressed air by the airlift principle (airlift). The airlift is
designed so that any scum occurring on the clear water layer is not pumped out. A minimum
water level in the SBR stage is maintained without further components.
-Step 5 (valve 4): Excess Sludge Withdrawal
In this step, the excess activated sludge is returned from the SBR reactor chamber into the
sludge storage chamber by the airlift, where it is stored. This excess sludge is drawn off near the
bottom of the SBR chamber.
Upon completion of this 5th step, the treatment process starts over with step 1.
4 of the cycles described above are normally performed daily. Individual adjustment of the switching
times and the number of cycles is possible in consultation with KLARO GmbH. This adjustment must be
performed by an authorized service contractor.
It is also possible to manually switch the system to holiday mode. The holiday mode is a greatly reduced
operating mode of the plant during longer periods without wastewater inflow.
Figure 1: Membrane Tube Diffusor Figure 2: Membrane Plate Diffusor
KLARO GmbH
Original Operating Manual for KLARO Small Wastewater Treatment Plant V.15.07 13
The KLplus/KL24plus controller can operate the plant depending on the actual wastewater inflow.
Prerequisite is the activation of level monitor by a professional.
Important: All chambers/tanks must be vented. This is usually achieved through the drains, which are
vented through the roof. If necessary, additional air ducts or vents must be installed. The ventilation
ducts must be installed in a manner that allows for natural ventilation (chimney effect).
4.2. Systems with Additional Nitrogen Removal (Process Classes N and D)
The nitrogen removal is also carried out biologically with the help of specific strains of microorganisms.
Plants with additional nitrification use intensive aeration to create particularly suitable living conditions for
nitrifying bacteria, which convert ammonium into nitrate. For systems that are designed for additional
denitrification, short aeration bursts at the beginning of the aeration phase cause circulation of the water
and stimulate the denitrifying bacteria, which convert nitrates into elemental nitrogen.
4.3. Systems with Additional Phosphate Elimination (Process Class +P)
The phosphate precipitation takes place by addition of poly-aluminium chloride to the SBR reactor. The
phosphate precipitation system includes a removable holding platform in the dome part or on the partition
wall of the tank. The precipitant canister is installed on this platform. The control cabinet of the plant
contains a metering pump. It sucks the precipitant from the precipitant canister and releases it into the
SBR reactor. The addition of the precipitant takes place during the aeration phase of the reactor. The
required precipitant can be adjusted via the dosing pump. During the aeration phase, mixing takes place.
The precipitant creates an insoluble compound with the phosphate, which settles well in the tank.
The commissioning and operation of the dosing pump is described under point 6.2.4.
4.4. Systems with Additional Sanitation (Process Class +S)
The optional KLARO UV module is used for sanitation of biologically treated wastewater. Sanitation is
achieved by means of ultraviolet light (UV). It is an effective, economical, and particularly environmentally
friendly process. UV light kills pathogenic microorganisms within seconds without leaving any residue,
harmful by-products, or odours. The UV-light effect is utilised through the application of particularly
effective UVC radiation (254 nm). Within a few seconds, it causes a photochemical reaction in the DNA
(deoxyribonucleic acid), which is vital for all microorganisms. Thus, the microorganism is either killed or
its reproducibility is disabled.
The UV irradiation results in no undesired side reactions at the UV dose levels used for the sterilisation.
Since no disinfecting active substance is added to the water by the UV radiation, no deposit effects are
present after passing through the UV reactor.
5. Control of the Small Wastewater Treatment Plant
The system is operated via the controller in the cabinet door (or inside the cabinet for outdoor cabinets).
It allows setting the operating parameters, displaying operating statuses, and querying system
parameters, as well as programming of operating hours by a specialist company.
The contrast of the display can be changed in automatic mode by simultaneously pressing ESC and the
arrow keys.
The following figures show the structure of the operating units.
KLARO GmbH
2Original Operating Manual for KLARO Small Wastewater Treatment Plant V.15.07
IMPORTANT:
•This Operating Manual contains information about the plant, from installation
to maintenance, and must therefore be read before commissioning of the
plant!
•All safety instructions must be observed!
•The Operating Manual must be kept readily available during the operation of
the plant!
Plant Specifications
For any questions in the course of the operation of the plant, the specifications of your plant should
be noted as follows. With the help of this information, our staff will be able to help you more quickly
in the event of a malfunction. The specifications can be found on the nameplate, which is located
on the outside of the cabinet door for indoor cabinets, and inside the cabinet for outdoor cabinets.
Small Wastewater Treatment
Plant
PT
Sludge storage
Buffer
SB-Reactor
Approval No.:
Process class:
Certified:
Cabinet:
Co
ntroller:
Compressor:
Denomination:
Serial No.
:
Article No.:
Additional module:
Article No.:
El. Connected load:
KLARO GmbH
Original Operating Manual for KLARO Small Wastewater Treatment Plant V.15.07 3
CONTENTS Page
1. About this Operating Manual 6
1.1. Original Language of Documentation 6
1.2. Completeness 6
1.3. Liability 7
2. Safety 7
2.1. Explanation of Warnings and Prohibitions 7
2.2. Hazard statements 8
2.3. Warnings 9
2.4. Exclusion for Use 10
3. Warranty 10
4. Function of the SBR Plant 10
4.1. Plants for carbon elimination (process classes C) 11
4.2. Systems with Additional Nitrogen Removal (Process Classes N and D) 13
4.3. Systems with Additional Phosphate Elimination (Process Class +P) 13
4.4. Systems with Additional Sanitation (Process Class +S) 13
5. Control of the Small Wastewater Treatment Plant 13
5.1. Connections to the KL-controls (230V option for solenoid valves) 16
5.2. Connections to the KL24 controller(24V option for stepper motor valves) 16
5.3. Operating the Controller 18
5.3.1. Querying Operating Hours 18
5.3.2. Manual Control of the Valves and the Cabinet Fan in "Manual Mode" 19
5.3.3. Setting Date/Time 20
5.3.4. Set Holiday Mode 20
5.3.5. Query Malfunctions -Query Old Malfunctions 21
5.3.6. Display Settings 21
5.3.7. Service Menu and Action Code 21
5.4. Changing the Fuses 22
5.5. Operation of Power Failure Detector 22
6. Additional functions of the Controllers KLplus/ KL24plus and KLbasic/KL24base 23
6.1. Underload detection (KLplus/KL24plus) 23
6.1.1. Mode of Operation 24
6.1.2. Commissioning 24
6.1.3. Switching Off the Level Measurement 25
6.1.4. Safety and Fault Messages25
6.2. Optional Functions 26
6.2.1. Connection of an external alarm device 26
6.2.2. Connection of a contactor for switching the compressor 26
6.2.3. Connection of a UV reactor 26
6.2.4. Phosphate precipitation with metering pump 26
7. Maintenance, Repair and Operation 28
7.1. Sludge Evacuation 28
7.2. Operating Instructions 29
8. Fault Messages and Troubleshooting 31
8.1. Fault Message on the Display 32
8.2. Unusual Water Levels -Troubleshooting 33
KLARO GmbH
2Original Operating Manual for KLARO Small Wastewater Treatment Plant V.15.07
IMPORTANT:
•This Operating Manual contains information about the plant, from installation
to maintenance, and must therefore be read before commissioning of the
plant!
•All safety instructions must be observed!
•The Operating Manual must be kept readily available during the operation of
the plant!
Plant Specifications
For any questions in the course of the operation of the plant, the specifications of your plant should
be noted as follows. With the help of this information, our staff will be able to help you more quickly
in the event of a malfunction. The specifications can be found on the nameplate, which is located
on the outside of the cabinet door for indoor cabinets, and inside the cabinet for outdoor cabinets.
Small Wastewater Treatment
Plant
PT
Sludge storage
Buffer
SB-Reactor
Approval No.:
Process class:
Certified:
Cabinet:
Co
ntroller:
Compressor:
Denomination:
Serial No.
:
Article No.:
Additional module:
Article No.:
El. Connected load:
KLARO GmbH
Original Operating Manual for KLARO Small Wastewater Treatment Plant V.15.07 3
CONTENTS Page
1. About this Operating Manual 6
1.1. Original Language of Documentation 6
1.2. Completeness 6
1.3. Liability 7
2. Safety 7
2.1. Explanation of Warnings and Prohibitions 7
2.2. Hazard statements 8
2.3. Warnings 9
2.4. Exclusion for Use 10
3. Warranty 10
4. Function of the SBR Plant 10
4.1. Plants for carbon elimination (process classes C) 11
4.2. Systems with Additional Nitrogen Removal (Process Classes N and D) 13
4.3. Systems with Additional Phosphate Elimination (Process Class +P) 13
4.4. Systems with Additional Sanitation (Process Class +S) 13
5. Control of the Small Wastewater Treatment Plant 13
5.1. Connections to the KL-controls (230V option for solenoid valves) 16
5.2. Connections to the KL24 controller(24V option for stepper motor valves) 16
5.3. Operating the Controller 18
5.3.1. Querying Operating Hours 18
5.3.2. Manual Control of the Valves and the Cabinet Fan in "Manual Mode" 19
5.3.3. Setting Date/Time 20
5.3.4. Set Holiday Mode 20
5.3.5. Query Malfunctions -Query Old Malfunctions 21
5.3.6. Display Settings 21
5.3.7. Service Menu and Action Code 21
5.4. Changing the Fuses 22
5.5. Operation of Power Failure Detector 22
6. Additional functions of the Controllers KLplus/ KL24plus and KLbasic/KL24base 23
6.1. Underload detection (KLplus/KL24plus) 23
6.1.1. Mode of Operation 24
6.1.2. Commissioning 24
6.1.3. Switching Off the Level Measurement 25
6.1.4. Safety and Fault Messages25
6.2. Optional Functions 26
6.2.1. Connection of an external alarm device 26
6.2.2. Connection of a contactor for switching the compressor 26
6.2.3. Connection of a UV reactor 26
6.2.4. Phosphate precipitation with metering pump 26
7. Maintenance, Repair and Operation 28
7.1. Sludge Evacuation 28
7.2. Operating Instructions 29
8. Fault Messages and Troubleshooting 31
8.1. Fault Message on the Display 32
8.2. Unusual Water Levels -Troubleshooting 33
13

KLARO GmbH
14 Original Operating Manual for KLARO Small Wastewater Treatment Plant V.15.07
Control KLbasic/KL24base Control KLplus/KL24plus
Figure 3: View of the Operating Unit KLbasic/KL24base Figure 4: View of the Operating Unit KLplus/KL24plus
Operating Status Display
The operating status of the system is indicated by the LED (green = operation/red = malfunction) and
as text on the LCD screen.
In normal operating mode (aeration mode), the liquid-crystal display looks as follows:
Figure 5: View of the Liquid Crystal Display During the Aeration Phase
In automatic mode, the LCD shows the current operating phase and the time remaining in this phase.
If a malfunction occurs, a message appears on the LCD, indicating which component is faulty (e.g.,
malfunction compressor).
Note: The behaviour in the event of a malfunction is described in more detail under Point 8.
The following operating phases are displayed:
Display
KLbasic/KL24base
Operation performed Display
KLplus/KL24plus
Charging Valve 1 is activated, the charging li
fter supplies
wastewater to be treated from the sludge storage to
the bio reactor.
Charging
Deni
Valve 2 is activated intermittently, the activated
sludge is mixed briefly with the wastewater. This is
followed by long pauses (reaction times).
Denitrification
Aeration Valve 2 is activated, the bio reactor is aerated at
intervals.
Aeration
Settlement No valve is activated, the activated sludge settles in
the bio reactor.
Settling Phase
Draining
Valve 3 is activated, the clear water is pumped into
Draining phase
Aeration
120.10m
Aeration
Remaining: 120.10 min
KLARO GmbH
2Original Operating Manual for KLARO Small Wastewater Treatment Plant V.15.07
IMPORTANT:
•This Operating Manual contains information about the plant, from installation
to maintenance, and must therefore be read before commissioning of the
plant!
•All safety instructions must be observed!
•The Operating Manual must be kept readily available during the operation of
the plant!
Plant Specifications
For any questions in the course of the operation of the plant, the specifications of your plant should
be noted as follows. With the help of this information, our staff will be able to help you more quickly
in the event of a malfunction. The specifications can be found on the nameplate, which is located
on the outside of the cabinet door for indoor cabinets, and inside the cabinet for outdoor cabinets.
Small Wastewater Treatment
Plant
PT
Sludge storage
Buffer
SB-Reactor
Approval No.:
Process class:
Certified:
Cabinet:
Co
ntroller:
Compressor:
Denomination:
Serial No.
:
Article No.:
Additional module:
Article No.:
El. Connected load:
KLARO GmbH
2Original Operating Manual for KLARO Small Wastewater Treatment Plant V.15.07
IMPORTANT:
•This Operating Manual contains information about the plant, from installation
to maintenance, and must therefore be read before commissioning of the
plant!
•All safety instructions must be observed!
•The Operating Manual must be kept readily available during the operation of
the plant!
Plant Specifications
For any questions in the course of the operation of the plant, the specifications of your plant should
be noted as follows. With the help of this information, our staff will be able to help you more quickly
in the event of a malfunction. The specifications can be found on the nameplate, which is located
on the outside of the cabinet door for indoor cabinets, and inside the cabinet for outdoor cabinets.
Small Wastewater Treatment
Plant
PT
Sludge storage
Buffer
SB-Reactor
Approval No.:
Process class:
Certified:
Cabinet:
Co
ntroller:
Compressor:
Denomination:
Serial No.
:
Article No.:
Additional module:
Article No.:
El. Connected load:
14

KLARO GmbH
Original Operating Manual for KLARO Small Wastewater Treatment Plant V.15.07 15
Control KLbasic/KL24base Control KLplus/KL24plus
the drain.
Exs-rem Valve 4 is activated, the excess sludge is pumped
from the reactor to the sludge storage.
Sludge removal
Pause Valve 2 is activated, the bio reactor is aerated at
intervals (substantially less than in the "aeration"
phase).
Cycle pause
Holiday Valve 2 is activated, the bio reactor is aerated at
intervals, no cleaning cycle is executed.
Holiday mode
XX.XX m Display of the remaining time. Remaining: XXX.XX
min
The operation of the control is generally performed via the keypad.
Figure 6: View of the Control Panel
Symbol
Key assignment
Function
Symbol
Enter key Selection of operating mode, confirm
inputs
Page Display of the operating modes and
queries
Acknowledgemen
t
Acknowledgement of inputs without
saving
Acknowledgement of fault messages
----------- Number keys Programming of the plant via digit input
..
KLARO GmbH
2Original Operating Manual for KLARO Small Wastewater Treatment Plant V.15.07
IMPORTANT:
•This Operating Manual contains information about the plant, from installation
to maintenance, and must therefore be read before commissioning of the
plant!
•All safety instructions must be observed!
•The Operating Manual must be kept readily available during the operation of
the plant!
Plant Specifications
For any questions in the course of the operation of the plant, the specifications of your plant should
be noted as follows. With the help of this information, our staff will be able to help you more quickly
in the event of a malfunction. The specifications can be found on the nameplate, which is located
on the outside of the cabinet door for indoor cabinets, and inside the cabinet for outdoor cabinets.
Small Wastewater Treatment
Plant
PT
Sludge storage
Buffer
SB-Reactor
Approval No.:
Process class:
Certified:
Cabinet:
Co
ntroller:
Compressor:
Denomination:
Serial No.
:
Article No.:
Additional module:
Article No.:
El. Connected load:
KLARO GmbH
Original Operating Manual for KLARO Small Wastewater Treatment Plant V.15.07 3
CONTENTS Page
1. About this Operating Manual 6
1.1. Original Language of Documentation 6
1.2. Completeness 6
1.3. Liability 7
2. Safety 7
2.1. Explanation of Warnings and Prohibitions 7
2.2. Hazard statements 8
2.3. Warnings 9
2.4. Exclusion for Use 10
3. Warranty 10
4. Function of the SBR Plant 10
4.1. Plants for carbon elimination (process classes C) 11
4.2. Systems with Additional Nitrogen Removal (Process Classes N and D) 13
4.3. Systems with Additional Phosphate Elimination (Process Class +P) 13
4.4. Systems with Additional Sanitation (Process Class +S) 13
5. Control of the Small Wastewater Treatment Plant 13
5.1. Connections to the KL-controls (230V option for solenoid valves) 16
5.2. Connections to the KL24 controller(24V option for stepper motor valves) 16
5.3. Operating the Controller 18
5.3.1. Querying Operating Hours 18
5.3.2. Manual Control of the Valves and the Cabinet Fan in "Manual Mode" 19
5.3.3. Setting Date/Time 20
5.3.4. Set Holiday Mode 20
5.3.5. Query Malfunctions -Query Old Malfunctions 21
5.3.6. Display Settings 21
5.3.7. Service Menu and Action Code 21
5.4. Changing the Fuses 22
5.5. Operation of Power Failure Detector 22
6. Additional functions of the Controllers KLplus/ KL24plus and KLbasic/KL24base 23
6.1. Underload detection (KLplus/KL24plus) 23
6.1.1. Mode of Operation 24
6.1.2. Commissioning 24
6.1.3. Switching Off the Level Measurement 25
6.1.4. Safety and Fault Messages25
6.2. Optional Functions 26
6.2.1. Connection of an external alarm device 26
6.2.2. Connection of a contactor for switching the compressor 26
6.2.3. Connection of a UV reactor 26
6.2.4. Phosphate precipitation with metering pump 26
7. Maintenance, Repair and Operation 28
7.1. Sludge Evacuation 28
7.2. Operating Instructions 29
8. Fault Messages and Troubleshooting 31
8.1. Fault Message on the Display 32
8.2. Unusual Water Levels -Troubleshooting 33
KLARO GmbH
2Original Operating Manual for KLARO Small Wastewater Treatment Plant V.15.07
IMPORTANT:
•This Operating Manual contains information about the plant, from installation
to maintenance, and must therefore be read before commissioning of the
plant!
•All safety instructions must be observed!
•The Operating Manual must be kept readily available during the operation of
the plant!
Plant Specifications
For any questions in the course of the operation of the plant, the specifications of your plant should
be noted as follows. With the help of this information, our staff will be able to help you more quickly
in the event of a malfunction. The specifications can be found on the nameplate, which is located
on the outside of the cabinet door for indoor cabinets, and inside the cabinet for outdoor cabinets.
Small Wastewater Treatment
Plant
PT
Sludge storage
Buffer
SB-Reactor
Approval No.:
Process class:
Certified:
Cabinet:
Co
ntroller:
Compressor:
Denomination:
Serial No.
:
Article No.:
Additional module:
Article No.:
El. Connected load:
KLARO GmbH
Original Operating Manual for KLARO Small Wastewater Treatment Plant V.15.07 3
CONTENTS Page
1. About this Operating Manual 6
1.1. Original Language of Documentation 6
1.2. Completeness 6
1.3. Liability 7
2. Safety 7
2.1. Explanation of Warnings and Prohibitions 7
2.2. Hazard statements 8
2.3. Warnings 9
2.4. Exclusion for Use 10
3. Warranty 10
4. Function of the SBR Plant 10
4.1. Plants for carbon elimination (process classes C) 11
4.2. Systems with Additional Nitrogen Removal (Process Classes N and D) 13
4.3. Systems with Additional Phosphate Elimination (Process Class +P) 13
4.4. Systems with Additional Sanitation (Process Class +S) 13
5. Control of the Small Wastewater Treatment Plant 13
5.1. Connections to the KL-controls (230V option for solenoid valves) 16
5.2. Connections to the KL24 controller(24V option for stepper motor valves) 16
5.3. Operating the Controller 18
5.3.1. Querying Operating Hours 18
5.3.2. Manual Control of the Valves and the Cabinet Fan in "Manual Mode" 19
5.3.3. Setting Date/Time 20
5.3.4. Set Holiday Mode 20
5.3.5. Query Malfunctions -Query Old Malfunctions 21
5.3.6. Display Settings 21
5.3.7. Service Menu and Action Code 21
5.4. Changing the Fuses 22
5.5. Operation of Power Failure Detector 22
6. Additional functions of the Controllers KLplus/ KL24plus and KLbasic/KL24base 23
6.1. Underload detection (KLplus/KL24plus) 23
6.1.1. Mode of Operation 24
6.1.2. Commissioning 24
6.1.3. Switching Off the Level Measurement 25
6.1.4. Safety and Fault Messages25
6.2. Optional Functions 26
6.2.1. Connection of an external alarm device 26
6.2.2. Connection of a contactor for switching the compressor 26
6.2.3. Connection of a UV reactor 26
6.2.4. Phosphate precipitation with metering pump 26
7. Maintenance, Repair and Operation 28
7.1. Sludge Evacuation 28
7.2. Operating Instructions 29
8. Fault Messages and Troubleshooting 31
8.1. Fault Message on the Display 32
8.2. Unusual Water Levels -Troubleshooting 33
15

KLARO GmbH
16 Original Operating Manual for KLARO Small Wastewater Treatment Plant V.15.07
Control KLbasic/KL24base Control KLplus/KL24plus
5.1. Connections to the KL-controls (230V option for solenoid valves)
The connectors and fuses are located on the back of the controller, KLbasic and KLplus.
Attention: Before performing any work on the electrical system, the maintenance switch must
be switched to the "0" position (OFF) and the mains plug disconnected!
Figure 7: View of the Back of the Controller KLbasic
Connections:
1connection for power supply230 VAC 50 Hz,
2X1: Bayonet connection for solenoid valves,
3X2: Shockproof coupling for connection of air
compressor,
4COM: Connection for communication module
(optional) or interface for PC,
5F1: T8A fuse, medium time-lag, for mains
connection,
6F2: T2A fuse, delay-action, for connected
consumers,
7 X4: Connection for extension cable: external
alarm.
Figure 8: View of the Back of the Controller KLplus
Connections:
1connection for power supply230 VAC 50
Hz,
2X1: Bayonet connection for solenoid
valves,
3X2: Shockproof coupling for connection of
air compressor,
4COM: Connection for communication
module, (optional) or interface for PC,
5F1: T8A fuse, for mains connection,
6F2: T2A fuse, delay-action, for connected
consumers,
7connection for temperature sensor, "must
be plugged in!"
8X3: Connection for extension cable: UV
module and metering pump,
9X4: Connection for external alarms and
contactor monitoring.
10 P: Connection for pressure measuring
tube.
5.2. Connections to the KL24 controller(24V option for stepper motor valves)
The connectors/cables and fuses are located on the back of the controller KL24base and KL24plus
KLplus.
Attention: Before performing any work on the electrical system, the maintenance switch must
be switched to the "0" position (OFF) and the mains plug disconnected!
KLARO GmbH
Original Operating Manual for KLARO Small Wastewater Treatment Plant V.15.07 17
Control KLbasic/KL24base Control KLplus/KL24plus
Figure 9: View of the Back of the Controller KL24base
Connections:
1connection for power supply230 VAC 50 Hz,
2X1: Valve cable, prefabricated,
3X2: Shockproof coupling for connection of air
compressor,
4COM: Connection for communication module,
(optional) or interface for PC,
5F1: T6.3A main fuse, delay-action.
1
X1.1 valve 1 24 VDC
2
X1.2 valve 2 24 VDC
3
X1.3 valve 24 VDC
4
X1.4 valve 24 4 VDC
5
X1.5 Alarm 24VDC
Figure 10: View of the Back of the Controller
KL24plus
Connections:
1connection for power supply230 VAC 50
Hz,
2X1: Valve cable, prefabricated,
3X2: Shockproof coupling for connection of
air compressor,
4COM: Connection for communication
module, (optional) or interface for PC,
5F1: T6.3A main fuse, delay-action,
6F2: T2A fuse for UV module, delay-action,
7connection for temperature sensor, "must
be plugged in!"
9X3: Connection for UV module
10 P: Connection for pressure measuring
tube.
1
X1.0 fan 24VDC
2
X1.1 valve 1 24 VDC
3
X1.2 valve 2 24 VDC
4
X1.3 valve 24 3 VDC
5
X1.4 valve 24 4 VDC
6
X1.5 Alarm 24VDC
7
X1.6 metering pump 24 VDC
5431 2
7
6
5431 2
KLARO GmbH
2Original Operating Manual for KLARO Small Wastewater Treatment Plant V.15.07
IMPORTANT:
•This Operating Manual contains information about the plant, from installation
to maintenance, and must therefore be read before commissioning of the
plant!
•All safety instructions must be observed!
•The Operating Manual must be kept readily available during the operation of
the plant!
Plant Specifications
For any questions in the course of the operation of the plant, the specifications of your plant should
be noted as follows. With the help of this information, our staff will be able to help you more quickly
in the event of a malfunction. The specifications can be found on the nameplate, which is located
on the outside of the cabinet door for indoor cabinets, and inside the cabinet for outdoor cabinets.
Small Wastewater Treatment
Plant
PT
Sludge storage
Buffer
SB-Reactor
Approval No.:
Process class:
Certified:
Cabinet:
Co
ntroller:
Compressor:
Denomination:
Serial No.
:
Article No.:
Additional module:
Article No.:
El. Connected load:
KLARO GmbH
2Original Operating Manual for KLARO Small Wastewater Treatment Plant V.15.07
IMPORTANT:
•This Operating Manual contains information about the plant, from installation
to maintenance, and must therefore be read before commissioning of the
plant!
•All safety instructions must be observed!
•The Operating Manual must be kept readily available during the operation of
the plant!
Plant Specifications
For any questions in the course of the operation of the plant, the specifications of your plant should
be noted as follows. With the help of this information, our staff will be able to help you more quickly
in the event of a malfunction. The specifications can be found on the nameplate, which is located
on the outside of the cabinet door for indoor cabinets, and inside the cabinet for outdoor cabinets.
Small Wastewater Treatment
Plant
PT
Sludge storage
Buffer
SB-Reactor
Approval No.:
Process class:
Certified:
Cabinet:
Co
ntroller:
Compressor:
Denomination:
Serial No.
:
Article No.:
Additional module:
Article No.:
El. Connected load:
16

KLARO GmbH
16 Original Operating Manual for KLARO Small Wastewater Treatment Plant V.15.07
Control KLbasic/KL24base Control KLplus/KL24plus
5.1. Connections to the KL-controls (230V option for solenoid valves)
The connectors and fuses are located on the back of the controller, KLbasic and KLplus.
Attention: Before performing any work on the electrical system, the maintenance switch must
be switched to the "0" position (OFF) and the mains plug disconnected!
Figure 7: View of the Back of the Controller KLbasic
Connections:
1connection for power supply230 VAC 50 Hz,
2X1: Bayonet connection for solenoid valves,
3X2: Shockproof coupling for connection of air
compressor,
4COM: Connection for communication module
(optional) or interface for PC,
5F1: T8A fuse, medium time-lag, for mains
connection,
6F2: T2A fuse, delay-action, for connected
consumers,
7 X4: Connection for extension cable: external
alarm.
Figure 8: View of the Back of the Controller KLplus
Connections:
1connection for power supply230 VAC 50
Hz,
2X1: Bayonet connection for solenoid
valves,
3X2: Shockproof coupling for connection of
air compressor,
4COM: Connection for communication
module, (optional) or interface for PC,
5F1: T8A fuse, for mains connection,
6F2: T2A fuse, delay-action, for connected
consumers,
7connection for temperature sensor, "must
be plugged in!"
8X3: Connection for extension cable: UV
module and metering pump,
9X4: Connection for external alarms and
contactor monitoring.
10 P: Connection for pressure measuring
tube.
5.2. Connections to the KL24 controller(24V option for stepper motor valves)
The connectors/cables and fuses are located on the back of the controller KL24base and KL24plus
KLplus.
Attention: Before performing any work on the electrical system, the maintenance switch must
be switched to the "0" position (OFF) and the mains plug disconnected!
KLARO GmbH
Original Operating Manual for KLARO Small Wastewater Treatment Plant V.15.07 17
Control KLbasic/KL24base Control KLplus/KL24plus
Figure 9: View of the Back of the Controller KL24base
Connections:
1connection for power supply230 VAC 50 Hz,
2X1: Valve cable, prefabricated,
3X2: Shockproof coupling for connection of air
compressor,
4COM: Connection for communication module,
(optional) or interface for PC,
5F1: T6.3A main fuse, delay-action.
1
X1.1 valve 1 24 VDC
2
X1.2 valve 2 24 VDC
3
X1.3 valve 24 VDC
4
X1.4 valve 24 4 VDC
5
X1.5 Alarm 24VDC
Figure 10: View of the Back of the Controller
KL24plus
Connections:
1connection for power supply230 VAC 50
Hz,
2X1: Valve cable, prefabricated,
3X2: Shockproof coupling for connection of
air compressor,
4COM: Connection for communication
module, (optional) or interface for PC,
5F1: T6.3A main fuse, delay-action,
6F2: T2A fuse for UV module, delay-action,
7connection for temperature sensor, "must
be plugged in!"
9X3: Connection for UV module
10 P: Connection for pressure measuring
tube.
1
X1.0 fan 24VDC
2
X1.1 valve 1 24 VDC
3
X1.2 valve 2 24 VDC
4
X1.3 valve 24 3 VDC
5
X1.4 valve 24 4 VDC
6
X1.5 Alarm 24VDC
7
X1.6 metering pump 24 VDC
5431 2
7
6
5431 2
KLARO GmbH
2Original Operating Manual for KLARO Small Wastewater Treatment Plant V.15.07
IMPORTANT:
•This Operating Manual contains information about the plant, from installation
to maintenance, and must therefore be read before commissioning of the
plant!
•All safety instructions must be observed!
•The Operating Manual must be kept readily available during the operation of
the plant!
Plant Specifications
For any questions in the course of the operation of the plant, the specifications of your plant should
be noted as follows. With the help of this information, our staff will be able to help you more quickly
in the event of a malfunction. The specifications can be found on the nameplate, which is located
on the outside of the cabinet door for indoor cabinets, and inside the cabinet for outdoor cabinets.
Small Wastewater Treatment
Plant
PT
Sludge storage
Buffer
SB-Reactor
Approval No.:
Process class:
Certified:
Cabinet:
Co
ntroller:
Compressor:
Denomination:
Serial No.
:
Article No.:
Additional module:
Article No.:
El. Connected load:
KLARO GmbH
Original Operating Manual for KLARO Small Wastewater Treatment Plant V.15.07 3
CONTENTS Page
1. About this Operating Manual 6
1.1. Original Language of Documentation 6
1.2. Completeness 6
1.3. Liability 7
2. Safety 7
2.1. Explanation of Warnings and Prohibitions 7
2.2. Hazard statements 8
2.3. Warnings 9
2.4. Exclusion for Use 10
3. Warranty 10
4. Function of the SBR Plant 10
4.1. Plants for carbon elimination (process classes C) 11
4.2. Systems with Additional Nitrogen Removal (Process Classes N and D) 13
4.3. Systems with Additional Phosphate Elimination (Process Class +P) 13
4.4. Systems with Additional Sanitation (Process Class +S) 13
5. Control of the Small Wastewater Treatment Plant 13
5.1. Connections to the KL-controls (230V option for solenoid valves) 16
5.2. Connections to the KL24 controller(24V option for stepper motor valves) 16
5.3. Operating the Controller 18
5.3.1. Querying Operating Hours 18
5.3.2. Manual Control of the Valves and the Cabinet Fan in "Manual Mode" 19
5.3.3. Setting Date/Time 20
5.3.4. Set Holiday Mode 20
5.3.5. Query Malfunctions -Query Old Malfunctions 21
5.3.6. Display Settings 21
5.3.7. Service Menu and Action Code 21
5.4. Changing the Fuses 22
5.5. Operation of Power Failure Detector 22
6. Additional functions of the Controllers KLplus/ KL24plus and KLbasic/KL24base 23
6.1. Underload detection (KLplus/KL24plus) 23
6.1.1. Mode of Operation 24
6.1.2. Commissioning 24
6.1.3. Switching Off the Level Measurement 25
6.1.4. Safety and Fault Messages25
6.2. Optional Functions 26
6.2.1. Connection of an external alarm device 26
6.2.2. Connection of a contactor for switching the compressor 26
6.2.3. Connection of a UV reactor 26
6.2.4. Phosphate precipitation with metering pump 26
7. Maintenance, Repair and Operation 28
7.1. Sludge Evacuation 28
7.2. Operating Instructions 29
8. Fault Messages and Troubleshooting 31
8.1. Fault Message on the Display 32
8.2. Unusual Water Levels -Troubleshooting 33
KLARO GmbH
2Original Operating Manual for KLARO Small Wastewater Treatment Plant V.15.07
IMPORTANT:
•This Operating Manual contains information about the plant, from installation
to maintenance, and must therefore be read before commissioning of the
plant!
•All safety instructions must be observed!
•The Operating Manual must be kept readily available during the operation of
the plant!
Plant Specifications
For any questions in the course of the operation of the plant, the specifications of your plant should
be noted as follows. With the help of this information, our staff will be able to help you more quickly
in the event of a malfunction. The specifications can be found on the nameplate, which is located
on the outside of the cabinet door for indoor cabinets, and inside the cabinet for outdoor cabinets.
Small Wastewater Treatment
Plant
PT
Sludge storage
Buffer
SB-Reactor
Approval No.:
Process class:
Certified:
Cabinet:
Co
ntroller:
Compressor:
Denomination:
Serial No.
:
Article No.:
Additional module:
Article No.:
El. Connected load:
KLARO GmbH
Original Operating Manual for KLARO Small Wastewater Treatment Plant V.15.07 3
CONTENTS Page
1. About this Operating Manual 6
1.1. Original Language of Documentation 6
1.2. Completeness 6
1.3. Liability 7
2. Safety 7
2.1. Explanation of Warnings and Prohibitions 7
2.2. Hazard statements 8
2.3. Warnings 9
2.4. Exclusion for Use 10
3. Warranty 10
4. Function of the SBR Plant 10
4.1. Plants for carbon elimination (process classes C) 11
4.2. Systems with Additional Nitrogen Removal (Process Classes N and D) 13
4.3. Systems with Additional Phosphate Elimination (Process Class +P) 13
4.4. Systems with Additional Sanitation (Process Class +S) 13
5. Control of the Small Wastewater Treatment Plant 13
5.1. Connections to the KL-controls (230V option for solenoid valves) 16
5.2. Connections to the KL24 controller(24V option for stepper motor valves) 16
5.3. Operating the Controller 18
5.3.1. Querying Operating Hours 18
5.3.2. Manual Control of the Valves and the Cabinet Fan in "Manual Mode" 19
5.3.3. Setting Date/Time 20
5.3.4. Set Holiday Mode 20
5.3.5. Query Malfunctions -Query Old Malfunctions 21
5.3.6. Display Settings 21
5.3.7. Service Menu and Action Code 21
5.4. Changing the Fuses 22
5.5. Operation of Power Failure Detector 22
6. Additional functions of the Controllers KLplus/ KL24plus and KLbasic/KL24base 23
6.1. Underload detection (KLplus/KL24plus) 23
6.1.1. Mode of Operation 24
6.1.2. Commissioning 24
6.1.3. Switching Off the Level Measurement 25
6.1.4. Safety and Fault Messages25
6.2. Optional Functions 26
6.2.1. Connection of an external alarm device 26
6.2.2. Connection of a contactor for switching the compressor 26
6.2.3. Connection of a UV reactor 26
6.2.4. Phosphate precipitation with metering pump 26
7. Maintenance, Repair and Operation 28
7.1. Sludge Evacuation 28
7.2. Operating Instructions 29
8. Fault Messages and Troubleshooting 31
8.1. Fault Message on the Display 32
8.2. Unusual Water Levels -Troubleshooting 33
17

KLARO GmbH
18 Original Operating Manual for KLARO Small Wastewater Treatment Plant V.15.07
Control KLbasic/KL24base Control KLplus/KL24plus
5.3. Operating the Controller
You can initiate various queries from automatic operation.
Press to access the first control level. You
can now use the two arrow keys and
then press to access the individual queries:
Press to access the first maintenance level.
You can now use the two arrow keys
and then press to access the individual
queries:
Display
KLbasic/KL24base
Explanation Display
KLplus/KL24plus
Operating state
Time remaining
Current operating phase, remaining time
Operating state
Time remaining
Display
Oper.Hrs
Display the operating hours of the individual valves and
the compressor
Operating hours
Counter
Manual
mode
Manual control of the valves
Manual Mode
Function
hh:mm dd
dd-mm-yy
Current time, day and date. Can be set via SET
Date
Time
Holiday
input
Setting the holiday mode (max. 90 days)
Holiday mode
Set Date
Display
Fault
Encountered malfunctions are stored and can be
accessed here. Use
to switch between the fault
message and the corresponding date
Read
old malfunctions
Display
Settings The current settings can be viewed using the arrow keys
Display
Settings
Action
code
For professionals Action code
Service
menu
For professionals
Service menu
Enter the code
5.3.1. Querying Operating Hours
Press the key. The screen displays: Press the key. The screen displays:
KLARO GmbH
2Original Operating Manual for KLARO Small Wastewater Treatment Plant V.15.07
IMPORTANT:
•This Operating Manual contains information about the plant, from installation
to maintenance, and must therefore be read before commissioning of the
plant!
•All safety instructions must be observed!
•The Operating Manual must be kept readily available during the operation of
the plant!
Plant Specifications
For any questions in the course of the operation of the plant, the specifications of your plant should
be noted as follows. With the help of this information, our staff will be able to help you more quickly
in the event of a malfunction. The specifications can be found on the nameplate, which is located
on the outside of the cabinet door for indoor cabinets, and inside the cabinet for outdoor cabinets.
Small Wastewater Treatment
Plant
PT
Sludge storage
Buffer
SB-Reactor
Approval No.:
Process class:
Certified:
Cabinet:
Co
ntroller:
Compressor:
Denomination:
Serial No.
:
Article No.:
Additional module:
Article No.:
El. Connected load:
KLARO GmbH
2Original Operating Manual for KLARO Small Wastewater Treatment Plant V.15.07
IMPORTANT:
•This Operating Manual contains information about the plant, from installation
to maintenance, and must therefore be read before commissioning of the
plant!
•All safety instructions must be observed!
•The Operating Manual must be kept readily available during the operation of
the plant!
Plant Specifications
For any questions in the course of the operation of the plant, the specifications of your plant should
be noted as follows. With the help of this information, our staff will be able to help you more quickly
in the event of a malfunction. The specifications can be found on the nameplate, which is located
on the outside of the cabinet door for indoor cabinets, and inside the cabinet for outdoor cabinets.
Small Wastewater Treatment
Plant
PT
Sludge storage
Buffer
SB-Reactor
Approval No.:
Process class:
Certified:
Cabinet:
Co
ntroller:
Compressor:
Denomination:
Serial No.
:
Article No.:
Additional module:
Article No.:
El. Connected load:
18

KLARO GmbH
18 Original Operating Manual for KLARO Small Wastewater Treatment Plant V.15.07
Control KLbasic/KL24base Control KLplus/KL24plus
5.3. Operating the Controller
You can initiate various queries from automatic operation.
Press to access the first control level. You
can now use the two arrow keys and
then press to access the individual queries:
Press to access the first maintenance level.
You can now use the two arrow keys
and then press to access the individual
queries:
Display
KLbasic/KL24base
Explanation Display
KLplus/KL24plus
Operating state
Time remaining
Current operating phase, remaining time
Operating state
Time remaining
Display
Oper.Hrs
Display the operating hours of the individual valves and
the compressor
Operating hours
Counter
Manual
mode
Manual control of the valves
Manual Mode
Function
hh:mm dd
dd-mm-yy
Current time, day and date. Can be set via SET
Date
Time
Holiday
input
Setting the holiday mode (max. 90 days)
Holiday mode
Set Date
Display
Fault
Encountered malfunctions are stored and can be
accessed here. Use
to switch between the fault
message and the corresponding date
Read
old malfunctions
Display
Settings The current settings can be viewed using the arrow keys
Display
Settings
Action
code
For professionals Action code
Service
menu
For professionals
Service menu
Enter the code
5.3.1. Querying Operating Hours
Press the key. The screen displays: Press the key. The screen displays:
KLARO GmbH
Original Operating Manual for KLARO Small Wastewater Treatment Plant V.15.07 19
Control KLbasic/KL24base Control KLplus/KL24plus
By pressing again and pressing the arrow
keys, you can display the operating hours
for valves 1 to 4 successively. Next, the total
operating hours of the compressor are displayed.
Press once to return to the "Operating Hours
Display." Press to go to the "Manual Mode"
menu.
Press again to display the number of
operating hours of valve 1 (charging). By
pressing the arrow keys ,you can
access the number of operating hours of the
remaining valves, the compressor, the UV
module, and the pump for phosphate
precipitation in succession. In addition, the
utilization of the plant is displayed.
By pressing the button, you return to
the maintenance level. Pressing it once
more sets the automatic mode again.
Note: If you do not press any button for 10 min., normal operation is started automatically.
5.3.2. Manual Control of the Valves and the Cabinet Fan in "Manual Mode"
Each valve should run at least 5 seconds when tested as the monitoring of the current
consumption of the valves requires some time before a possible malfunction is detected.
Following the valves, the cabinet fan, if present, can also be triggered and checked.
In automatic mode, press . Then press the
arrow key,
, until the following display
appears on the screen:
Pressing the key will show the following
display:
By pressing , you can switch the selected
valve on and off.
Press . Then press the arrow key, ,
until the following display appears on the
screen:
Press
again and then use with the
arrow keys, , to select manual mode
for all functions.
The display on the screen for valve 1 will
now be, for example:
Operating hours
Counter
Display
Oper.Hrs
Manual Mode
Function
Valve1
OFF
Manual
Operation
KLARO GmbH
2Original Operating Manual for KLARO Small Wastewater Treatment Plant V.15.07
IMPORTANT:
•This Operating Manual contains information about the plant, from installation
to maintenance, and must therefore be read before commissioning of the
plant!
•All safety instructions must be observed!
•The Operating Manual must be kept readily available during the operation of
the plant!
Plant Specifications
For any questions in the course of the operation of the plant, the specifications of your plant should
be noted as follows. With the help of this information, our staff will be able to help you more quickly
in the event of a malfunction. The specifications can be found on the nameplate, which is located
on the outside of the cabinet door for indoor cabinets, and inside the cabinet for outdoor cabinets.
Small Wastewater Treatment
Plant
PT
Sludge storage
Buffer
SB-Reactor
Approval No.:
Process class:
Certified:
Cabinet:
Co
ntroller:
Compressor:
Denomination:
Serial No.
:
Article No.:
Additional module:
Article No.:
El. Connected load:
KLARO GmbH
Original Operating Manual for KLARO Small Wastewater Treatment Plant V.15.07 3
CONTENTS Page
1. About this Operating Manual 6
1.1. Original Language of Documentation 6
1.2. Completeness 6
1.3. Liability 7
2. Safety 7
2.1. Explanation of Warnings and Prohibitions 7
2.2. Hazard statements 8
2.3. Warnings 9
2.4. Exclusion for Use 10
3. Warranty 10
4. Function of the SBR Plant 10
4.1. Plants for carbon elimination (process classes C) 11
4.2. Systems with Additional Nitrogen Removal (Process Classes N and D) 13
4.3. Systems with Additional Phosphate Elimination (Process Class +P) 13
4.4. Systems with Additional Sanitation (Process Class +S) 13
5. Control of the Small Wastewater Treatment Plant 13
5.1. Connections to the KL-controls (230V option for solenoid valves) 16
5.2. Connections to the KL24 controller(24V option for stepper motor valves) 16
5.3. Operating the Controller 18
5.3.1. Querying Operating Hours 18
5.3.2. Manual Control of the Valves and the Cabinet Fan in "Manual Mode" 19
5.3.3. Setting Date/Time 20
5.3.4. Set Holiday Mode 20
5.3.5. Query Malfunctions -Query Old Malfunctions 21
5.3.6. Display Settings 21
5.3.7. Service Menu and Action Code 21
5.4. Changing the Fuses 22
5.5. Operation of Power Failure Detector 22
6. Additional functions of the Controllers KLplus/ KL24plus and KLbasic/KL24base 23
6.1. Underload detection (KLplus/KL24plus) 23
6.1.1. Mode of Operation 24
6.1.2. Commissioning 24
6.1.3. Switching Off the Level Measurement 25
6.1.4. Safety and Fault Messages25
6.2. Optional Functions 26
6.2.1. Connection of an external alarm device 26
6.2.2. Connection of a contactor for switching the compressor 26
6.2.3. Connection of a UV reactor 26
6.2.4. Phosphate precipitation with metering pump 26
7. Maintenance, Repair and Operation 28
7.1. Sludge Evacuation 28
7.2. Operating Instructions 29
8. Fault Messages and Troubleshooting 31
8.1. Fault Message on the Display 32
8.2. Unusual Water Levels -Troubleshooting 33
KLARO GmbH
2Original Operating Manual for KLARO Small Wastewater Treatment Plant V.15.07
IMPORTANT:
•This Operating Manual contains information about the plant, from installation
to maintenance, and must therefore be read before commissioning of the
plant!
•All safety instructions must be observed!
•The Operating Manual must be kept readily available during the operation of
the plant!
Plant Specifications
For any questions in the course of the operation of the plant, the specifications of your plant should
be noted as follows. With the help of this information, our staff will be able to help you more quickly
in the event of a malfunction. The specifications can be found on the nameplate, which is located
on the outside of the cabinet door for indoor cabinets, and inside the cabinet for outdoor cabinets.
Small Wastewater Treatment
Plant
PT
Sludge storage
Buffer
SB-Reactor
Approval No.:
Process class:
Certified:
Cabinet:
Co
ntroller:
Compressor:
Denomination:
Serial No.
:
Article No.:
Additional module:
Article No.:
El. Connected load:
KLARO GmbH
Original Operating Manual for KLARO Small Wastewater Treatment Plant V.15.07 3
CONTENTS Page
1. About this Operating Manual 6
1.1. Original Language of Documentation 6
1.2. Completeness 6
1.3. Liability 7
2. Safety 7
2.1. Explanation of Warnings and Prohibitions 7
2.2. Hazard statements 8
2.3. Warnings 9
2.4. Exclusion for Use 10
3. Warranty 10
4. Function of the SBR Plant 10
4.1. Plants for carbon elimination (process classes C) 11
4.2. Systems with Additional Nitrogen Removal (Process Classes N and D) 13
4.3. Systems with Additional Phosphate Elimination (Process Class +P) 13
4.4. Systems with Additional Sanitation (Process Class +S) 13
5. Control of the Small Wastewater Treatment Plant 13
5.1. Connections to the KL-controls (230V option for solenoid valves) 16
5.2. Connections to the KL24 controller(24V option for stepper motor valves) 16
5.3. Operating the Controller 18
5.3.1. Querying Operating Hours 18
5.3.2. Manual Control of the Valves and the Cabinet Fan in "Manual Mode" 19
5.3.3. Setting Date/Time 20
5.3.4. Set Holiday Mode 20
5.3.5. Query Malfunctions -Query Old Malfunctions 21
5.3.6. Display Settings 21
5.3.7. Service Menu and Action Code 21
5.4. Changing the Fuses 22
5.5. Operation of Power Failure Detector 22
6. Additional functions of the Controllers KLplus/ KL24plus and KLbasic/KL24base 23
6.1. Underload detection (KLplus/KL24plus) 23
6.1.1. Mode of Operation 24
6.1.2. Commissioning 24
6.1.3. Switching Off the Level Measurement 25
6.1.4. Safety and Fault Messages25
6.2. Optional Functions 26
6.2.1. Connection of an external alarm device 26
6.2.2. Connection of a contactor for switching the compressor 26
6.2.3. Connection of a UV reactor 26
6.2.4. Phosphate precipitation with metering pump 26
7. Maintenance, Repair and Operation 28
7.1. Sludge Evacuation 28
7.2. Operating Instructions 29
8. Fault Messages and Troubleshooting 31
8.1. Fault Message on the Display 32
8.2. Unusual Water Levels -Troubleshooting 33
19

KLARO GmbH
20 Original Operating Manual for KLARO Small Wastewater Treatment Plant V.15.07
Control KLbasic/KL24base Control KLplus/KL24plus
Use the arrow keys,
, to select the
individual valves. Press once to return to the
"Manual Mode" display. By pressing the digit "1" for "ON" and "0" for
"OFF," you can switch valve 1 on and off in
manual mode. The remaining valves can
operated in the same manner. The selection
is made as described above using the arrow
keys, .
By pressing the button, you return to
the maintenance level. Pressing it once
more sets the automatic mode again.
5.3.3. Setting Date/Time
Press . Then press the arrow keys, ,
until the following display appears on screen
(example):
Press to set the time and date, using the
arrow keys, . To confirm the correction,
also press in each case.
Press once to proceed to the holiday mode.
Press , to return to manual mode.
Press . Then press the arrow keys,
, until the following display appears
on screen (example):
Press to set the time and date, using
the number keys. To confirm the correction,
also press in each case.
Press once to proceed to the holiday
mode. Press to return to manual mode.
The time and date display of the plant must always be set correctly in order for the hours of operation
to be recorded and possible malfunctions to be tracked. The integrated clock has an accuracy of
max. 5 min deviation per year. There is no automatic changeover to and from daylight saving time.
Note: If you do not press any button for 10 min., normal operation is started automatically.
5.3.4. Set Holiday Mode
Note: The holiday mode results in reduced operation of the wastewater treatment plant. It should
only be used if no wastewater is fed into the wastewater treatment plant during the chosen dates.
Wastewater that is fed into the plant during holiday mode is not treated. The holiday mode is
switched on and off automatically on the dates you enter.
Manual Mode
Valve1: OFF
19-12-2015 Mo
20:15:56
20:15 Mo
19-12-15
KLARO GmbH
2Original Operating Manual for KLARO Small Wastewater Treatment Plant V.15.07
IMPORTANT:
•This Operating Manual contains information about the plant, from installation
to maintenance, and must therefore be read before commissioning of the
plant!
•All safety instructions must be observed!
•The Operating Manual must be kept readily available during the operation of
the plant!
Plant Specifications
For any questions in the course of the operation of the plant, the specifications of your plant should
be noted as follows. With the help of this information, our staff will be able to help you more quickly
in the event of a malfunction. The specifications can be found on the nameplate, which is located
on the outside of the cabinet door for indoor cabinets, and inside the cabinet for outdoor cabinets.
Small Wastewater Treatment
Plant
PT
Sludge storage
Buffer
SB-Reactor
Approval No.:
Process class:
Certified:
Cabinet:
Co
ntroller:
Compressor:
Denomination:
Serial No.
:
Article No.:
Additional module:
Article No.:
El. Connected load:
KLARO GmbH
2Original Operating Manual for KLARO Small Wastewater Treatment Plant V.15.07
IMPORTANT:
•This Operating Manual contains information about the plant, from installation
to maintenance, and must therefore be read before commissioning of the
plant!
•All safety instructions must be observed!
•The Operating Manual must be kept readily available during the operation of
the plant!
Plant Specifications
For any questions in the course of the operation of the plant, the specifications of your plant should
be noted as follows. With the help of this information, our staff will be able to help you more quickly
in the event of a malfunction. The specifications can be found on the nameplate, which is located
on the outside of the cabinet door for indoor cabinets, and inside the cabinet for outdoor cabinets.
Small Wastewater Treatment
Plant
PT
Sludge storage
Buffer
SB-Reactor
Approval No.:
Process class:
Certified:
Cabinet:
Co
ntroller:
Compressor:
Denomination:
Serial No.
:
Article No.:
Additional module:
Article No.:
El. Connected load:
20