Wilo Stratos GIGA Serie Instrucciones De Instalación Y Funcionamiento página 28

English
Changing the component arrange-
ment
22
NOTE:
To make the installation work easier, the "dry" installation of the
pump in the piping can be helpful, e.g., installation without electrical
connection and without filling of the pump or system.
• Carry out steps 5 to 10 in accordance with chapter 10.2.1 "Replacing
the mechanical seal" on page 50.
• Rotate the motor impeller unit by 90° or 180° in the desired direction
and install the pump in the reverse order.
• Fasten the holder of the differential pressure sensor (Fig. 7, Item 6)
with one of the screws (Fig. 7, Item 3) on the side opposite the elec-
tronic module (the position of the sensor relative to the module does
not change when doing this).
• Wet the O-ring (Fig. 7, Item 11) well before installation (do not install
the O-ring in a dry condition).
NOTE:
Be sure that the O-ring (Fig. 7, Item 11) is not installed in a twisted
position or squeezed, pinched, or cut during installation.
• Before commissioning, fill the pump/system and apply system pres-
sure; check for leaks afterwards. If there is a leak at the O-ring, first air
will come out of the pump. This leakage can, for example, be checked
with a leakage spray at the gap between the pump housing and the
lantern as well as their screwed connections.
• In the event of continual leakage, use a new O-ring, if need be.
CAUTION! Danger of personal injury!
Incorrect handling can result in property damage.
• If the transport eyes are moved from the motor flange to the
motor housing, e.g. to replace the motor impeller unit, then these
have to be reattached to the motor flange after completion of the
installation work (also see chapter 3.2 "Transport for installation/
dismantling purposes" on page 6). In addition, the spacers are also
to be screwed back into the openings (Fig. 7, Item 20b).
CAUTION! Danger of property damage!
Incorrect handling can result in property damage.
• When turning the components, make sure that the pressure mea-
suring lines are not bent or kinked.
• When reinstalling the differential pressure sensor, bend the pressure
measuring lines evenly and as little as possible to put them into the
required position or into a suitable position. When doing this, do not
deform the areas at the clamp boltings.
• For optimal positioning of the pressure measuring lines, the differen-
tial pressure sensor can be separated from the holder (Fig. 7, Item 6),
rotated by 180° around the longitudinal axis and reinstalled.
WILO SE 01/2014