Maintenance; Cleaning The Pump; Service; Technical Data - Grundfos Unilift CC 5 Instrucciones De Instalación Y Funcionamiento

11. Maintenance

Under normal operating conditions, the pump is
maintenance-free.
If the pump has been used for liquids other than
clean water, it should be flushed through with clean
water immediately after use.

11.1 Cleaning the pump

Warning
Before starting work on the pump,
make sure that the power supply to the
pump has been switched off and that it
cannot be accidentally switched on.
Cleaning the suction strainer
1. Switch off the power supply to the pump.
2. Drain the pump.
3. Loosen the suction strainer by inserting a
screwdriver between the pump sleeve and the
strainer and turning it, see fig. 8.
4. Clean and refit the suction strainer.
Cleaning the impeller
1. Switch off the power supply to the pump.
2. Loosen the suction strainer by inserting a
screwdriver between the pump sleeve and the
strainer and turning it, see fig. 8.
3. Remove the pump housing, see fig. 10.
Fig. 10 Removal of pump housing
4. Remove and clean the diaphragm.
5. Flush the pump with clean water to remove
possible impurities between the motor and the
pump sleeve. Clean the impeller.
6. Check that the impeller can rotate freely.
7. Assemble the pump in reverse order of
dismantling.

12. Service

A number of service kits and spare parts are
available for unilift CC. The product numbers and the
components included in the service kits can be found
on WebCAPS (www.grundfos.com). Alternatively,
contact your local grundfos dealer.
The cable and the float switch must be
replaced by an authorised Grundfos
Note
service workshop.

13. Technical data

Pump performance
Pump type
Max. head [ft (m)]
Max. flow rate
[gpm (m³/h)]
Maximum particle size
0.39" (10 mm).
Enclosure class
IP68.
Insulation class
• Unilift CC 5 and Unilift CC 7: F.
• Unilift CC 9: B.
Thermal protection
Cut-out temperature (winding temperature):
• Unilift CC 5 and Unilift CC 7: +320 °F (+160 °C).
• Unilift CC 9:
Do not use the thermal protection to
control pump operation. If the pump is
to be installed permanently in
Caution
conditions with varying water level,
install a pump with float switch.
Dry running
A Unilift CC pump must not run dry for
Caution
more than 24 hours.
Unilift Unilift Unilift
CC 5 CC 7 CC 9
16 (5) 22 (7) 29 (9)
26.7 38.3 58.3
(6) (10) (14)
+284 °F (+140 °C.)
9