Wilo WROX Operating Instructions Manual page 5

Standard voltage motors : tolerance on network ± 10 % in 50 Hz for
3 phase and +6/ -15% for 1phase
ATTENTION !
5. INSTALLATION
Two standard cases:
Fig. 1 : Pump in suction
Fig. 2: Pump under pressure on storage tank (9) or town water supply
(10) with dry-running protection system.
5.1 INSTALLATION
Install the pump in a place easy to reach, as close as possible from the
drawing point.
For heavy pumps provide a point of attachment (lifting hook) in the
pump axis (12) to facilitate removal.
Install the pump on a concrete block (at least 10 cm high) (13) and fix
with anchor bolts.
Use an isolating material under the concrete block (cork or reinforced
rubber) to avoid any noise and vibration transmission into the
installation.
Before final tightening of anchor bolts, ensure that the pump axis is
vertical: use shims if necessary.
Bear in mind that the altitude of the installation place and water
temperature may reduce the suction head of the pump.
WROX Pump IOM | 5