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It must be ensured that all mains cables
from the submersible motorised aerator and
the pumps used are securely attached and
do not float in the wastewater. This will pre-
vent the rotating propeller from coming into
contact with the cables and damaging them.
The propeller itself is protected by a guide
ring on the housing.
Attachment of aeration hose (example)
Securely attach a 90° bend to the male
thread socket and then screw a hose nozzle
into the bend. The suction hose can now be
secured to the nozzle with a hose clamp.
ATTENTION! If the pump is malfunction-
ing, a slight leakage of the contents of the
oil reservoir into the wastewater medium is
possible.
MAINTENANCE
Before carrying out any works:
disconnect the aerator and the
controls from the mains and take
steps to ensure that no one else can recon-
nect them to the power supply.
Check the mains cable for me-
chanical or chemical damage. A
damaged or kinked cable must be
replaced.
When using a chain to lift the aera-
tor, please observe the relevant
national regulations regarding ac-
cident prevention.
Remove any solids and fibres from the aerator
housing and the aeration propeller. To main-
tain the function of the cooling surfaces, they
must be cleaned regularly to remove any resi-
dues (e.g. limescale).
Replacing the propeller
ATTENTION! In some models, there is a spe-
cial shim disc between the motor shaft and
the propeller. This must also be re-inserted
after the propeller has been replaced.
The propeller is attached to the motor shaft
with a cylinder head screw. This screw must
first of all be removed using an Allen key, and
then the propeller can be carefully taken off
the motor shaft and replaced.
The propeller must not rub against the hous-
ing once it has been tightened, otherwise a
shim must be inserted between the housing
and the propeller.
ATTENTION! The gap between the housing
and the propeller must not be greater than
1 mm, as otherwise the mechanical seal
on the OXYPERL will not be sufficiently pre-
stressed and oil leaks may occur.
Tightening torque M
of the screws
A
M 6 with M
= 5 Nm, Amtec 3.5 with M
A
and Amtec 5.0 with M
= 2 Nm.
A
Air reflux valve (Accessory)
A particularly for problematic cases de-
veloped optional air reflux valve presents a
pressure compensation when switching off
the aggregate. This also ensures that no sol-
ids get into the propeller.
Quick tips for remedying
faults
OXYPERL is not working
∙ Check mains current (do not use a pin
gauge)
∙ Fuse faulty = may be too weak (please
refer to the section entitled Electrical
connection)
∙ Mains cable damaged = replace cable
∙ The cooling surfaces are not completely
submersed or are soiled and the electric
motor has overheated and cut out = wait
for a while and the OXYPERL will start
up again automatically (clean the cool-
ing surfaces and check the installation
dimensions).
Reduced air insertion
∙ Ensure that the air ducts in the aeration
propeller are not clogged. If necessary,
flush any solids out.
∙ Check that there are no obstructions in
the suction hose.
Reduced circulation performance
∙ Propeller is rubbing against the aerator
housing
1. The propeller is resting loosely on the
motor shaft = tighten the cylinder head
screw.
2. Solids are caught between the propeller
and the aerator housing = loosen the cyl-
inder head screw and lift the propeller off
the motor shaft. Clean the parts and screw
all parts on again tightly.
3. The gap between the propeller and the
housing is too small and the original st
ate cannot be restored = insert a special
shim disc (mat. no. 41957) between the
shaft and the propeller
∙ The propeller is damaged or worn =
replace
Power input too high
∙ The gap between the propeller and the
housing is too small and the original
state cannot be restored = insert a
special shim disc between the shaft and
the propeller.
TECHNICAL DATA
OXYPERL
3 /2
[kg]
4
= 1 Nm
A
[mm]
32
P1
[W]
310
P2
[W]
210
U
[V]
1/N/PE ~230
f
[Hz]
50
I
[A]
1,37
n
[min
] 2765
-1
ENGLISH
OXYPERL
5 /1
5
40
540
390
1/N/PE ~230
50
2,36
2700
7
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