Graf Klaro Easy SBR User guide

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Instructions for
start-up, operation and maintenance
Klaro Easy SBR wastewater
treatment system
Control unit version
KLbasic / KL24base
KLplus / KL24plus
General building authorities' ap-
proval:
In the Carat septic tank:
No.: Z-55.31-319
(discharge class C)
No.: Z-55.31-437
(discharge class D)
In the Carat XL septic tank:
No.: Z-55.31-319
(discharge class C)
No.: Z-55.31-435
(discharge class D)
Be sure to read before starting
up!
Contents
1. GENERAL 4
2. SAFETY NOTICES 6
3. SCOPE OF SUPPLY 9
4. FUNCTION OF THE SBR SYSTEM 11
5. CONTROL AND MACHINE CABINET 14
6. THE SMALL WASTEWATER TREATMENT SYSTEM'S
CONTROL UNIT 19
7. ADDITIONAL FUNCTION OF THE KLPLUS/KL24PLUS
AND KLBASIC/KL24BASE CONTROL UNIT 30
8. OPERATION AND MAINTENANCE 38
9. FAULT MESSAGES AND RECTIFICATION 42
10. OPERATING INSTRUCTIONS 46
11. ANNEX I: TEMPLATE FOR WEEKLY / MONTHLY
CHECK NOTES 49
12. MAINTENANCE LOG FOR KLARO SMALL
WASTEWATER TREATMENT SYSTEMS 52

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WARRANTY
CERTIFICATE
Otto Graf GmbH
Kunststofferzeugnisse
Dear Sir/Madam,
Congratulations on purchasing a quality product from Otto Graf GmbH. We hereby confirm
that your small wastewater treatment system is covered by warranty for
3 years
The warranty only applies to the wastewater treatment technology. Accessories and addi-
tional options are not covered by the warranty. Within the warranty period, Otto Graf GmbH
shall replace materials free of charge. No other services are covered by the warranty.
Conditions of warranty
The warranty applies if the following requirements are met:
1. The wastewater treatment system must be installed and started up by a specialist.
Companies certified by the DWA or trained by Otto Graf GmbH are considered spe-
cialists.
2. Maintenance must be undertaken by a specialist company as described in the oper-
ating manual and the approval. If claims for warranty are submitted, all maintenance
logs must be provided if requested.
3. Wearing parts are not covered by the warranty, nor are defects and damage for
which we are not responsible and which are the result of improper system operation,
failure to undertake maintenance, faults caused by the customer and unauthorised
changes to the system.
4. Follow-on costs resulting from replacing the unit, shutting down the system etc. are
not covered by the warranty.
Statutory warranty claims are not affected by this warranty and remain in place in their en-
tirety.
Teningen, April 2015
Otto Graf GmbH
Carl-Zeiss-Str. 2-6
DE-79331 Teningen

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Dear Sir/Madam,
We are delighted that you have chosen to buy a modern Klaro Easy SBR system. Klaro Easy
is a quality product that as a complete system meets the requirements of DIN EN 12566-3 and
DIN 4261-1, making it a fully biological small wastewater treatment system. Below you will find
some important information for safely operating your system for a long time to come.
The SBR system is designed to receive all domestic wastewater. Other wastewater, e.g.
from restaurants and / or commercial premises etc., may only be received if this was
specified and taken into account in the system's design.
Biocides, toxic substances or substances which are not biocompatible must not enter
this system because they hinder bacteria important to wastewater cleaning and cause
problems in the biological process (detailed information is provided on the following pag-
es).
To meet official cleaning requirements, it is essential that the system is operated
in accordance with our operating and maintenance instructions. You will find these
instructions on the following pages.
We also ask you to read the following information carefully:
The internal control cabinet must be installed in a dry, well ventilated room (cellar or
garage).
External control cabinets should be located as much in the shade as possible to prevent
them from overheating in the summer.
At all times ensure that the cabinet, especially its ventilation apertures, are not covered
and are freely accessible for maintenance work.
EPP control cabinet: Ventilation apertures on the front and top
Internal control cabinet: Ventilation apertures on the sides
External control cabinet: Ventilation apertures on the rear
The power supply must be ensured at all times. Please ensure that the fuse on the con-
trol cabinet is sufficient (16 A). Additional electrical fixtures on the same fuse may dis-
rupt operation.
Otto Graf GmbH in Teningen

1. General
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1. General
Details about your system1.1
In case you have any queries while operating the system, please enter the details of your sys-
tem here as follows. Should you encounter a fault, these details will enable our staff to find a
remedy faster.
You will find the details on the type plate fitted to the outside of internal cabinets and the inside
of external cabinets.

1. General
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Original EC declaration of conformity for small wastewater system in plastic tank1.2
Manufacturer: Otto Graf GmbH Kunststofferzeugnisse
Carl-Zeiss-Str. 2-6
DE-79331 Teningen
Tel. [phone]
Fax [phone]
www.graf.info
hereby declares that the KLARO Easy,small wastewater system in plastic tanks for 4 to 50
inhabitants meets the requirements of the following directives:
2011/305/EC "Regulation no. 305/2011 of the European Parliament and of the Council
of 9 March 2011 on defining harmonised conditions for marketing con-
struction products".
2006/42/EC "Directive of the European Parliament and of the Council of 17 May 2006
on machines and changes to Directive 95/16/EC".
2006/95/EC "Directive of the European Parliament and of the Council of 12 Decem-
ber 2006 on the harmonisation of the laws of Member States relating to
electrical equipment designed for use within certain voltage limits".
2004/108/EC "Directive of the European Parliament and of the Council of 15 Decem-
ber 2004 on the approximation of the laws of the Member States relating
to electromagnetic compatibility and repealing Directive 89/336/EEC".
The following harmonised standards were applied:
EN 12566-3:2005+A2:2013 "Small wastewater treatment systems for up to 50 PT Part 3:
Packaged and/or site assembled domestic wastewater treatment
plants."
EN 60204-1/A1: 2009 "Electrical equipment of machines. Part 1: General require-
ments."
EN 13849-1: 2008 "Safety of machinery –Safety-related parts of control systems. –
Part 1: General principles for design."
This EC declaration of conformity ceases to apply if the product is modified without consent.
Responsible for documentation: Otto Graf GmbH
Teningen, 31.03.15
Arne Schröder
(Product management team leader)

2. Safety notices
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2. Safety notices
This chapter contains details relating to safety measures and residual risks. Read this chapter
through carefully before using the system to ensure that it is used as safely as possible.
Explanation of warning notices and prohibitions2.1
Warning of danger
Warning of dangerous voltage
Warning of tripping risk
Warning of hot surface
Warning of hand injuries
Warning of explosive atmospheres
Fire, naked flames and smoking prohibited
Danger notices2.2
1. To ensure safety, everyone who comes into direct contact with the system must note the
content of this documentation.
2. The system must not be used for any purpose other than that described by the manufactur-
er.
3. Local operating and safety requirements and legislation must be followed at all times, even
if not explicitly mentioned in these instructions. The same applies to environmental require-
ments.
4. If the operator becomes aware of mistakes or dangers, the manufacturer or responsible
maintenance company must be informed immediately.

2. Safety notices
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5. Safety precautions must never be removed or bypassed during normal operation of the ma-
chine. Safety precautions may only be temporarily bypassed or deactivated by the mainte-
nance fitter during repairs and maintenance.
6. When working with chemical substances, contact with the chemicals should be avoided as
far as possible. Before these substances may be used, the instructions for use on the pack-
aging must be read and followed.
7. If the use of personal protective equipment (safety shoes, protective glasses, gloves, ear
defenders, etc.) is prescribed, ensure that they are used. Defective or damaged protective
equipment must be immediately replaced with fully functional equipment.
8. Work on electrical equipment may only be undertaken by specialists.
9. All safety and danger notices on the machine should always be kept fully legible.
10. Hot parts must not come into contact with explosive or highly flammable chemicals.
11. Do not put vessels containing liquids on electric switch cabinets; short circuits may occur if
the liquid is spilled.
12. The system must not be operated by anyone under the influence of alcohol (remember that
alcohol may still remain in the body the day after consumption!) or medication which limits
cognitive ability or ability to react.
13. The system must be de-energised before any maintenance or cleaning work.
14. Other than for maintenance purposes, the system should always be left switched on, other-
wise correct wastewater cleaning cannot be guaranteed.

2. Safety notices
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Warning notices2.3
Installation location
Ensure that the machine cabinet is not installed above or in the direct
vicinity of water vessels. Risk of electric shock if improperly installed.
Mains connection
Only connect the machine cabinet to a correctly installed 230 V socket or
earth cable which is fused with an upstream 16 A fuse as specified in the
technical data.
Electrical equipment connected to the mains may be damaged during a
storm. We would recommend fitting surge protection in the building to
protect against this. The connection cable must be laid such that it does
not represent a tripping hazard.
Explosive atmos-
pheres
The control unit must not be fitted or activated in environments with po-
tential explosive atmospheres or in places where there are flammable
materials. Sparks in such environments may cause an explosion or fire
and this may result in physical injuries or even death.
Interferences
The control unit may cause medical equipment to malfunction. This de-
vice should therefore not be used in close proximity to medical equip-
ment.
Damage
The control unit must not be operated if the housing or cable insulation is
damaged or crushed.
Service work
Service work on the machine cabinet may only be undertaken by author-
ised specialists / electricians.
Voltage supply
The power supply must be ensured at all times. Please ensure that the
fuse on the control cabinet is sufficient (16 A). Additional electrical fix-
tures on the same fuse may disrupt operation.

3. Scope of supply
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3. Scope of supply
The wastewater treatment system basically comprises the septic tank with wastewater treat-
ment technology setting-up kit and control cabinet. These main parts are connected to one an-
other using air hoses laid in the ground.
The septic tank(s) is(are) split into two areas, the sludge reservoir and buffer in the inlet area
and the SBR reactor in the outlet area. In a one-tank system, these two stages are housed in
one tank and separated by a partition. In a multi-tank system, the sludge reservoir buffer and bio
reactor each have their own tank. A feed lifter is present in the sludge reservoir in the form of a
mammoth pump with its own air supply.
In the sludge reservoir / buffer you will find:
feed lifter in the form of a mammoth pump with its own air supply (marked in red)
In the bio reactor you will find:
stainless steel air distributor system with membrane pipes or aerator plates
feed lifter in the form of a mammoth pump with its own air supply (marked in red)
stainless steel air supply system with EPDM membrane, finely perforated
outflow lifter in the form of a mammoth pump with its own air supply (marked in black)
secondary sludge lifter in the form of a mammoth pump with its own air supply (marked
in white)
integrated sampling points (only in one- and two-tank systems!)
In the control cabinet for mounting on indoor walls or in the control column for outdoor installa-
tion you will find:
a quiet, low-maintenance air compressor
a valve unit
a control unit which conforms to the requirements of BGV A3 and DIN EN 60204-1
As an option, the system can be fitted with an integrated sampling facility from which a water
sample can be taken.

3. Scope of supply
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One-tank system in the Carat septic tank3.1
Two-tank system in the Carat tank3.2
One-reservoir system in a TWIN underground tank3.3
Schlamm-
speicher/
Puffer
SBR-
Reaktor
L
Hs Hp
HWges
E
H
H BB,min
H BB,max
A
E
140-340
Sludge
storage/
buffer
SBR-
reactor
Sludge storage/ buffer
SBR-reactor
sludge return