Applications; Storage And Operating Conditions; Sound Pressure Level; Safety - Grundfos Unilift AP12 Instrucciones De Instalación Y Funcionamiento

2.1 Applications

The Grundfos Unilift AP pump is a single-stage
submersibl e pump designed for the pumping of
waste water.
The pump is capable of pumping water which
contains a limited quantity of solids, however not
stones and similar materials, without being blocked
or damaged.
The pump is available for automatic as well as
manual operation and can be installed in a
permanent installation or used as a portable pump.
The pump is suitable for:
Applications
Groundwater lowering
Pumping in drainage pits
Pumping in surface
water pits with inflow from
roof gutters, shafts,
tunnels, etc.
Emptying of ponds, tanks,
etc.
Pumping of fibre-containing
waste water from laundries
and industries
Pumping of surface
water from septic tanks and
sludge treating systems
Pumping of domestic waste
water without discharge
from water closets
Pumping of domestic waste
water with discharge from
water closets
Maximum particle size [mm]
Warning
The pump must not be used in or at
swimming pools, garden ponds, etc.
when there are persons in the water.
Incorrect application of the pump (e.g. resulting in
blocking of the pump) and wear are not covered by
the warranty.
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AP12 AP35 AP50
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12 35 50

2.2 Storage and operating conditions

Storage temperature: Down to -30 °C.
Minimum liquid
temperature: 0 °C.
Maximum liquid
temperature: +55 °C continuously.
Up to +70 °C for periods not
exceeding 3 minutes.
Then the pump must cool
down.
Installation depth: Maximum 10 metres below
liquid level.
pH value: Between 4 and 10.
Density: Maximum 1100 kg/m
Viscosity: Maximum 10 mm
Technical data: See pump nameplate.
Always have at least 3 m free cable
above liquid level. This limits
installation depth to 7 m for pumps

Caution

with 10 m cable and to 2 m for pumps
with 5 m cable.
Pumps with 3 m cable are for industrial
Caution
applications only.

2.3 Sound pressure level

The sound pressure level of the pump is lower than
the limiting values stated in the EC Council Directive
2006/42/EC relating to machinery.

3. Safety

Warning
Pump installation in wells must be
carried out by specially trained
persons.

4. Electrical connection

Depending on local regulations, a
pump with 10 metres of mains cable
must be used if the pump is used as a
Caution
portable pump for different
applications.
The electrical connection should be carried out in
accordance with local regulations.
The pump must be connected to an external mains
switch. If the pump is not installed close to the
switch, this must be of a lockable type.
The operating voltage and frequency are marked on
the pump nameplate. Please make sure that the
motor is suitable for the electricity supply on which it
will be used.
3
.
2
/s.