ZUWA Impeller Pumps
15
Caution
Material damage due to dry running
>
In case of a suction depth of more than 3 metres, fill prior to
commissioning.
>
Never allow the pump to run dry for more than one minute.
>
Open pressure line.
>
To start the pump, switch on drive.
>
Service interruption: wait 3 - 4 seconds before restarting
Caution
Material damage due to overpressure in the pump
>
Do not block pressure side for more than a minute while the drive is
running.
All ZUWA impeller pumps are suitable for continuous operation.
UNISTAR 2000-C
This pump is equipped with a rotary switch to change
operating direction.
>
Prior to changing the rotating direction turn off
pump and wait for 3 - 4 seconds. Then turn switch
into the new direction.
8. Storage
>
Empty pump completely
>
Clean pump in order to avoid adhesions and damage to the impeller
>
Store pump under frost-protected conditions
After extended periods of pump down time prior to commissioning, check that
the impeller wheel runs freely and that the pump starts. See also chapter 11:
“Troubleshooting”.
rotary switch
