Tabla De Contenido; General Description; Applications; Storage And Operating Conditions - Grundfos Unilift AP35B Instrucciones De Instalación Y Funcionamiento

CONTENTS
1. General description
1.1 Applications
1.2 Storage and operating conditions
1.3 Sound pressure level
2. Safety
3. Electrical connection
3.1 Checking of direction of rotation
4. Installation
4.1 Connection
4.2 Pump location
4.3 Installation on auto-coupling
4.4 Free-standing installation
4.5 Setting of level switch
5. Start-up
6. Maintenance and service
6.1 Oil
6.2 Pump construction
6.3 Service kits
6.4 Contaminated pumps
7. Fault finding chart
8. Disposal
Before beginning installation procedures,
these installation and operating instruc-
tions should be studied carefully. The in-
stallation and operation should also be in
accordance with local regulations and ac-
cepted codes of good practice.

1. General description

Fig. 1
Discharge port
Pump inlet

1.1 Applications

The Grundfos Unilift AP35B and AP50B pumps are
single-stage submersible pumps designed for the
pumping of waste water.
6
The pump is capable of pumping water which con-
tains a limited quantity of solids, however not stones
Page
and similar materials, without being blocked or dam-
6 aged.
6
The pump is available for automatic as well as man-
6
ual operation and can be installed in a permanent in-
6
stallation (on auto-coupling or as a free-standing
7 pump) or used as a portable pump.
7 The pump is suitable for:
7
Applications
7
7
Groundwater lowering
7
Pumping in drainage pits
8
8
Pumping in surface water pits
8
with inflow from roof gutters,
shafts, tunnels, etc.
9
9 Emptying of ponds, tanks, etc.
9
Pumping of fibre-containing
9
waste water from laundries
9
and industries
9
Pumping of domestic waste
10
water from septic tanks and
10
sludge treating systems
Pumping of domestic waste
water without discharge from
water closets
Pumping of domestic waste
water with discharge from wa-
ter closets
Maximum particle size [mm]
Handle
Incorrect application of the pump (e.g. resulting in
with clamp
blocking of the pump) and wear are not covered by
the warranty.

1.2 Storage and operating conditions

Level switch
Storage temperature: Down to -30°C.
Minimum liquid
temperature:
Maximum liquid
temperature:
Installation depth:
pH value:
Density:
Viscosity:
Technical data:

1.3 Sound pressure level

The sound pressure level of the pump is lower than
the limiting values stated in the EC Council Directive
98/37/EC relating to machinery.
AP35B
The pump must not be used in or at swim-
ming pools, garden ponds, etc. when there
are persons in the water.
0°C.
+40°C.
Maximum 7 metres below
liquid level.
Between 4 and 10.
Maximum 1100 kg/m³.
Maximum 10 mm²/s.
See pump nameplate.
AP50B
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