Starting Up The Product; Product Introduction; Intended Use; Pumped Liquids - Grundfos Unilift AP35B Installation And Operating Instructions Manual

4. Starting up the product

DANGER
Electric shock
Death or serious personal injury
- Do not use the pump in swimming
pools, garden ponds or similar places if
there are people in the water.
The pump may be run briefly to check the
direction of rotation without being
submerged in the pumped liquid.
1. Before starting the pump, submerge the pump
inlet in the pumped liquid.
2. Open the isolating valve, if fitted, and check the
level switch setting.

5. Product introduction

Outlet
Inlet
Fig. 1 Unilift AP35B, AP50B

5.1 Intended use

The Grundfos Unilift AP pump is a single-stage
submersible pump designed for pumping
wastewater.
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.
Permanent installation can be on a stationary auto
coupling or as a free-standing pump.
10
Applications
Drainage of flooded cellars or
buildings
Groundwater lowering
Pumping of water from drain
water collecting pits
Pumping of water from
surface water pits with inflow
from roof gutters, shafts,
tunnels, etc.
Emptying and filling of
swimming pools, ponds, pits
etc.
Pumping of wastewater from
washing machines, baths,
sinks etc. from low-lying parts
of buildings up to sewer level
Handle with
Pumping of fibre-containing
clamp
wastewater from laundries
and light industries
Pumping of domestic
wastewater from septic tanks
Level switch and sludge treating systems
Pumping of domestic
wastewater without discharge
from toilet rooms
Pumping of domestic
wastewater with discharge
from toilet rooms
*
Incorrect application of the pump, for example
resulting in blocking of the pump, and wear are not
covered by the warranty.

5.2 Pumped liquids

The pump is capable of pumping water containing a
limited quantity of spherical particles. Pumping of
spherical particles exceeding the maximum particle
size for the pump may block or damage the pump.
Maximum particle size: See section
data.
The pump is not suitable for these liquids:
•
•
•
•
Unilift AP50B is approved according to EN
12050-1 and can be used for toilet discharge if
local regulations allow the usage of a 50 mm free
passage Vortex pump.
liquids containing long fibres
inflammable liquids (oil, petrol, etc.)
aggressive liquids.
liquids containing solids exceeding the pump's
recommended maximum particle size.
Unilift Unilift
AP35B AP50B
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8. Technical