ATB HBA-008 Manual

Innovations for clean water
ATB – HBA(-C)
Installation/Operating Instructions

Installation/Operating Instructions ATB – HBA(-C)
ATB WATER GmbH, Südstraße 2, 32457 Porta Westfalica, Germany, www.atbwater.com
Version: 01.04.2022 / Page 2 of 30
!!! IMPORTANT !!!
PRIOR TO USING THE UNIT
•Anybody involved MUST imperatively read and fully understand the unit’s O&M manual.
•It is most important that the O&M manuals remain with the operator for future reference.
GENERAL
•No foreign objects such as hard materials, plastic bags, etc... are allowed in the basins.
These objects can cause extensive damage and/or for example create unbalances to
the impeller.
PLEASE NOTE:
•The following information refers to the standard execution of the aerators. In the case of
special versions, which can be identified as such by the product designation, deviations
may occur. If necessary, this manual can be supplemented with additional information.
•As our products are subject to continuous development, the technical specifications in
the tables are to be regarded as non-binding. ATB Water reserves the right to introduce
technical changes to its products without prior notice.
•Failure to comply with the information contained in these documents, misuse or
unauthorized alteration of the product will void the warranty.

Installation/Operating Instructions ATB – HBA(-C)
ATB WATER GmbH, Südstraße 2, 32457 Porta Westfalica, Germany, www.atbwater.com
Version: 01.04.2022 / Page 3 of 30
Content
1. Safety regulations............................................................................................................................ 4
2. Product overview............................................................................................................................. 5
2.1. Description............................................................................................................................. 5
2.2. Working principle.................................................................................................................... 6
2.3. Exclusion of fields of application............................................................................................. 6
3. Receiving and handling................................................................................................................... 7
3.1. Receiving and acceptance ..................................................................................................... 7
3.2. Handling (loading/unloading).................................................................................................. 7
4. Assembly........................................................................................................................................ 10
4.1. Preliminary work / instructions / installation of the aerator .....................................................10
4.2. Assembly and installation......................................................................................................11
4.2.1. Mounting the extension channels (HBA-C only) ..............................................................11
4.2.2. Mounting the intake pipe and the silencer (optional)........................................................11
4.2.3. Assembly of the lifting device supplied by ATB (optional)................................................11
4.2.4. Installation of the power cable .........................................................................................13
4.2.5. Installation of the aerator in the tank................................................................................13
4.3. Instructions for electrical connection......................................................................................14
4.3.1. General instructions ........................................................................................................14
4.3.2. Control panel...................................................................................................................15
4.3.3. Direction of rotation .........................................................................................................16
4.3.4. Delta connection..............................................................................................................17
4.3.5. Star connection ...............................................................................................................17
4.4. Start-up .................................................................................................................................18
5. Operation and maintenance.......................................................................................................... 19
5.1. Operation ..............................................................................................................................19
5.2. Maintenance .........................................................................................................................19
5.2.1. Leakage test....................................................................................................................20
5.2.2. Oil check ........................................................................................................................21
5.2.3. General overhaul.............................................................................................................22
5.2.4. Checking the insulation of the motor................................................................................22
5.2.5. Lubrication.......................................................................................................................23
5.2.6. Checking the impeller......................................................................................................23
5.2.7. Checking the air intake....................................................................................................23
ENCLOSURE I: General data ............................................................................................................ 27
ENCLOSURE II: Declaration of conformity...................................................................................... 28
ENCLOSURE III: Maintenance sheet ................................................................................................ 29
ENCLOSURE IV: O&M manual of the motor.................................................................................... 30

Installation/Operating Instructions ATB – HBA(-C)
ATB WATER GmbH, Südstraße 2, 32457 Porta Westfalica, Germany, www.atbwater.com
Version: 01.04.2022 / Page 4 of 30
1. Safety regulations
We will mention, in this chapter, the major kind of risks and dangers that might
occur and the safety precautions to be taken.
•As mentioned in our declaration of conformity, our submerged aerator can only be used
when the installation, into which it needs to be incorporated, is declared conform to the
Machinery Directive.
•Devices with motors without explosion protection must never be operated in basins with
explosive media.
•Unauthorized personnel must leave the working area of the unit!
•The installation, maintenance, repair or dismantling of the device must be carried out by
qualified personnel who have the appropriate qualifications and are equipped with suitable
tools. Operation may also be carried out by non-specialised personnel provided that they
are fully familiar with the contents of this manual and all other documents supplied with the
product.
•All electrical parts must be installed and connected in accordance with the European
Standard EN 60204 for the electrical equipment of machines.
•During the installation of the device in the tank, individual steps must be taken to protect the
personnel. This applies in particular to the use of suitable protective clothing. In principle, all
applicable accident prevention regulations must be observed. Specifically make sure that
the oxygen concentration is sufficient and that no toxic gases are present in the working
area.
•Before welding or using an electric tool, make sure that there is no risk of explosion.
When working on the electrical system or during maintenance and repair works, it
must be ensured that the circuit breaker is switched off and locked.
•Suitable safety measures must be taken at all times to ensure that no person can fall into
the water.
•A second person must be involved in all works on the electrical system or maintenance and
repair works.
•For safety reasons, but also to avoid exclusion of warranty, the aerator must not be
operated in the event of faults or changes in performance.
ATB WATER GmbH is not responsible for any kind of incidents.

Installation/Operating Instructions ATB – HBA(-C)
ATB WATER GmbH, Südstraße 2, 32457 Porta Westfalica, Germany, www.atbwater.com
Version: 01.04.2022 / Page 5 of 30
2. Product overview
2.1. Description
Drawing 1: Type HBA (left) and HBA-C (right)
Drawing 2: Cable and clamps (left) and lifting bracket (right)
Legend for drawings 1 and 2:
1 = Fixation zone of the motor chain
2 = Electric cable or cables
3 = Intake pipe
4 = Lifting kit
4.a = Rope
4.b = Clips
4.c = Thimble
5 = Lifting bracket
6 = Plate for fixing the lifting bracket
7 = Silencer

Installation/Operating Instructions ATB – HBA(-C)
ATB WATER GmbH, Südstraße 2, 32457 Porta Westfalica, Germany, www.atbwater.com
Version: 01.04.2022 / Page 6 of 30
2.2. Working principle
The submersible aerators type HBA and HBA-C consist of a submersible motor, which drives an
impeller. The rotation of the impeller creates a vacuum inside the unit, which draws air into a
suction chamber. The air and the liquid are mixed in the chamber and pushed into the ejection
channels and ejected with a radial discharge, whereby the medium in the tank is aerated and
mixed.
The electric motor is a submerged three-phase asynchronous cage motor with IP68 degree of
protection, insulation class F or H, suitable for continuous operation (S1).
Starting from type HBA-040 and for all larger devices the motor will be equipped with the
following protection devices:
•Thermal protection devices
•Electrode to detect water in the oil chamber.
Smaller motors up to 3 kW can be optional (on demand) equipped with thermal protection devices
while oil leakage sensors are not available.
The aerators can be installed without the aid of any anchoring and supporting structure. The
machine's own weight and low centre of gravity generally ensures high stability. Under special
operating conditions, however, the aerator could eventually start to move. In such cases, the intake
pipe is anchored to the pool edges with 3 ropes to fix the aerator (see Drawing 5).
A lifting cable, which can be attached to the engine and intake pipe, allows easy removal and
repositioning of the aerators without the use of operating bridges or platforms or emptying the tank.
2.3. Exclusion of fields of application
The aerators of the HBA and HBA-C series are generally not suitable for the following applications
or operating conditions:
•Dry operation or operation in which the motor with the liquid to be aerated is not completely
submerged;
•Aeration/mixing of liquids with a temperature exceeding 40°C;
•Water depth exceeding the highest values in table 1;
•pH value of the liquid to be aerated/mixed outside the range 6 to 8.5 (if other pH values are
required, special versions can be manufactured according to customer requirements);
•Aeration/mixing of flammable liquids;
•Operation in potentially explosive atmospheres.

Installation/Operating Instructions ATB – HBA(-C)
ATB WATER GmbH, Südstraße 2, 32457 Porta Westfalica, Germany, www.atbwater.com
Version: 01.04.2022 / Page 7 of 30
3. Receiving and handling
3.1. Receiving and acceptance
Check the goods for completeness and visible damage before unloading.
Any damage caused during transport must be reported immediately. The scope of delivery must be
compared with the information on the delivery note. Before confirming receipt of the delivery by
signature, the relevant remarks must be noted.
In the event of damage or the discovery of missing or incorrect accessories, ATB must be notified
immediately in writing.
3.2. Handling (loading/unloading)
Be careful when handling this type of heavy, precision equipment to avoid damage to it or other
equipment, or injure any person involved. Persons that are not directly involved in
loading/unloading should be kept out of the handling area.
The lifting equipment used should have been inspected and approved by an official authority prior
to unloading the truck in order to allow safe handling.
The eyebolts or the handle for lifting the aerator are located on the upper part of the motor. The centre
of gravity of the aerator without intake pipe is close to the vertical axis due to the radial geometry of
the aerator. Due to the design of the unit, the centre of gravity is in the lower part of the unit. When the
intake pipe is mounted, the centre of gravity of the aerator is placed in the direction of the intake pipe
but remains between the eyebolts.
When handling the aerator, a distinction must be made between 3 cases:
1. dispatch and acceptance of the unit
2. handling with intake pipe and non-mounted extended channels (if fitted), i.e. moving the
aerator on the premises of the treatment plant;
3. handling with intake pipe and already mounted extended channels (if any), i.e. moving the
aerator for installation in the tank.
Case 1:
During shipment and acceptance, the aerator must be placed on a pallet with an appropriate load
capacity. It must be protected with a packaging foil or packed in a wooden box.
The aerator is supplied with two iron brackets attached to the pallet (see Drawing 3).
To separate the aerator from the pallet, remove the screw connecting each bracket to the aerator foot.
Finally, remove the mounting brackets from the pallet by removing the mounting screws. Keep the
mounting brackets in case the aerator will have to be transported again in the future.

Installation/Operating Instructions ATB – HBA(-C)
ATB WATER GmbH, Südstraße 2, 32457 Porta Westfalica, Germany, www.atbwater.com
Version: 01.04.2022 / Page 8 of 30
Drawing 3: Removal of the device fastenings on the pallet
Case 2:
If you lift and move the aerator inside the wastewater treatment plant, use the special handle to move
it with sufficient force for the weight of the unit without accessories and lifting gear. When handling
with forklift trucks, position the forks parallel to the suction chamber and take care not to crush or
break the chamber itself (see Drawing 4). Always place the aerator on a firm surface with applicable
load-bearing capacity.
Check the weights and dimensions of the aerator.
Drawing 4: Handling on the wastewater treatment plant

Installation/Operating Instructions ATB – HBA(-C)
ATB WATER GmbH, Südstraße 2, 32457 Porta Westfalica, Germany, www.atbwater.com
Version: 01.04.2022 / Page 9 of 30
Case 3:
For handling during installation of the aerator in the tank, all accessories required for operation
must already be installed (see below). The entire unit must then be lifted by means of a crane with
the appropriate lifting capacity.
While lifting the aerator with the intake pipe fitted, the unit may sway slightly. However, it is
impossible for the unit to tip over. The use of the sling bar (see Drawing 2) minimises the
inclination of the assembly aerator + intake pipe unit when particularly long intake pipes are
present.
Take care not to damage the electrical cable when moving the device. It is
explicitly forbidden to pull the device by the electric cable!
Do not bend the cable (bending radius > 5 times cable diameter). The open cable end must never
get into contact with water and must be protected from weather influences.

Installation/Operating Instructions ATB – HBA(-C)
ATB WATER GmbH, Südstraße 2, 32457 Porta Westfalica, Germany, www.atbwater.com
Version: 01.04.2022 / Page 10 of 30
4. Assembly
4.1. Preliminary work / instructions / installation of the aerator
For safety reasons, the device must always be installed by at least 2 persons.
•Make sure that the aerator has not been damaged during transport.
•Check the horizontal orientation of the aerator's footprint. The aerator should be installed as
vertically as possible. Using the aerator in a non-vertical position could cause considerable
damage to the rotating parts.
•Do not immerse the end of the cable. In addition, the aerator must never be lowered by
means of the electric cable, but only by means of the steel cable provided for this purpose.
Such unauthorized actions could cause water to enter the cable, break the inner conductors
or damage the motor.
•Only qualified personnel may extend the power cable if necessary.
•The water depth has a considerable influence on the operating conditions of the motor. The
bigger the water depth, the higher will be the load on the motor.
•The maximum water depth indicated in table 1 must not be exceeded under any
circumstances. However, after consultation with ATB, deviations are possible, and ATB will
adapt the aerator accordingly.
Aerator Power Maximum
Water Depth
Type [kW] [m]
HBA-008 0,8 2,50
HBA-015 (-C) 1,5 2,50
HBA-030 (-C) 3,15 3,50
HBA-040 (-C) 4,0 3,50
HBA-055 (-C) 5,5 5,00
HBA-075 (-C) 7,5 5,00
HBA-090 (-C) 9,0 6,00
HBA-110 (-C) 11,0 6,00
HBA-150 (-C) 15,0 6,50
HBA-185 (-C) 18,5 6,50
HBA-220 (-C) 22,0 6,50
HBA-300 (-C) 30,0 7,00
HBA-370 (-C) 37,0 7,00
HBA-450 (-C) 45,0 8,00
HBA-550 (-C) 55,0 8,00
HBA-750 (-C) 75,0 8,00
Table 1: Maximum permitted water depth
•In addition, make sure that the aerator motor is constantly submerged. Otherwise the
motor could overheat and be damaged.