Wilo Stratos GIGA Betriebsanleitung Seite 88

English
Fig. 20: Transporting the motor
r ≈ 2,5 * (d-2s)
5 x DN
Fig. 21: Settling section upstream and
downstream of the pump
88
DANGER! Risk of fatal injury!
The pump itself and pump parts can be extremely heavy. Falling
parts pose a risk of cuts, crush injuries, bruises or impacts, which
can be fatal.
• Always use suitable lifting equipment and secure parts against
falling.
• Never stand underneath a suspended load.
CAUTION! Risk of material damage!
Risk of damage due to incorrect handling.
• Only use lifting eyes on the motor for carrying the weight of the
motor and not for carrying the entire pump (Fig. 20).
• Only lift the pump with approved lifting gear (e.g. block and tackle,
crane, etc.; see chapter 3 "Transport and temporary storage" on
page 73).
• When installing the pump, an minimum axial wall/ceiling distance to
the motor's fan cover of 200 mm + diameter of the fan cover must be
maintained.
NOTICE:
Shut-off devices must be installed upstream and downstream from
the pump in all cases, in order to avoid having to drain the entire sys-
tem when checking or replacing the pump. A non-return valve must
be installed on the pressure side of each pump.
CAUTION! Risk of material damage!
A volume flow going against or with the direction of flow (turbine
operation or generator operation) can cause irreparable damage to
the drive.
• A non-return valve must be installed on the pressure side of each pump.
NOTICE:
A settling section must be provided upstream and downstream of the
pump, in the form of a straight pipe. The length of this settling section
should be at least 5 x DN of the pump flange (Fig. 21). This measure
serves to avoid flow cavitation.
• The pipes and pump must be free of mechanical stress when installed.
The pipes must be fixed in such a way that the pump is not supporting
the weight of the pipes.
• The direction of flow must correspond with the direction arrow on the
pump housing flange.
• The air vent valve at the lantern (Fig. 6, Item 1.31) must always face
upwards if the motor shaft is horizontal (Fig. 6a and Fig. 6b). If the
motor shaft is vertical, any orientation is permitted. See also Fig. 18:
"Permitted installation positions with horizontal motor shaft" on
page 86 and Fig. 19: "Permitted installation positions with vertical
motor shaft" on page 86.
• All installation positions except for "motor facing down" are allowed.
• The electronic module must not face downwards. If required, the
motor can be turned after loosening the hexagon head screws.
NOTICE:
After loosening the hexagon head screws, the differential pressure
sensor is attached to the pressure measuring lines only. When turning
the motor housing, make sure that the pressure measuring lines are
not bent or kinked. Furthermore, while rotating the motor housing, it
must be ensured that the housing O-ring seal does not become dam-
aged.
• For the permitted installation positions, see chapter 7.1 "Permitted
installation positions and change of the arrangement of components
before the installation" on page 86.
• Only the installation position with vertical motor shaft is intended.
NOTICE:
Stratos GIGA B series monobloc pumps are to be mounted on a suffi-
ciently strong base or mounting brackets.
WILO SE 03/2018