Functions; Operating Conditions; Installation; Installation Dimensions - Grundfos Unilift CC 5 Installation And Operating Instructions Manual

4. Functions

Pump with float switch
• Automatic start/stop.
• Pumping to low water level without suction
strainer, with the pump in forced operation.
Pump without float switch
• Manual external start/stop.
• Pumping to low water level without suction
strainer, see section 7.4.
Unilift CC pumps incorporate a vent valve.
See section 7.1.

5. Operating conditions

Liquid temperature
0°C to +40°C.
At intervals of at least 30 minutes, the pump is
allowed, however, to run at maximum +70°C for
periods not exceeding 2 minutes.
Storage temperature
–10°C to +50°C.
Installation depth
Maximum 10 metres below water surface.

6. Installation

Note:
• The pump must not be installed hanging from the
electric cable or the discharge pipe.
• Do not lift or lower the pump by means of the elec-
tric cable.

6.1 Installation dimensions

6.1.1 Pump with float switch
If the pump is installed in a well, the minimum dimen-
sions of the well should be as shown in fig. 3 and the
table to ensure free movability of the float switch.
Fig. 3 Minimum installation dimensions
B
Minimum installation dimensions
Height (H)
Pump type
[mm]
Unilift CC 5
520
Unilift CC 7
Unilift CC 9 570
6.1.2 Pump without float switch
The space required corresponds to the physical
dimensions of the pump, see page 119.

6.2 Pump location

The pump can be used in the vertical position and in
the tilted or horizontal position with the discharge
port as the highest point of the pump. During opera-
tion, the suction strainer must be covered by the
pumped liquid.
Fig. 4 Pump positions
Position the pump so that the suction strainer is free
of silt, mud or similar materials. This can be ensured
by placing the pump on bricks, an iron plate, etc.
Fig. 5 Pump mounted on a plate
Width (B)
[mm]
400
500
7