Wilo Rexa CUT GI Notice De Montage Et De Mise En Service page 101

Work steps
4
3
2
1
Fig. 5: Stationary wet well installation
1 Suspension unit
2 Non-return valve
3 Stop valve
4 Guide pipe (provided by the customer)
5 Lifting equipment
6 Attachment point for the lifting equipment
‡
Operating space/installation location is prepared for the
installation.
‡
Suspension unit and pipe system were installed.
‡
Pump is prepared for operation on the suspension unit.
1. Use a shackle to attach the lifting equipment to the at-
tachment point of the pump.
2. Lift the pump, swivel it above the chamber opening and
slowly lower the guide claw onto the guide pipe.
3. Lower the pump until it sets on the suspension unit and
is connected automatically. CAUTION! Hold the power
supply cables slightly taut when lowering the pump!
4. Loosen the lifting equipment from the lifting gear and
secure it at the chamber outlet against falling.
5. Have the power supply cables routed into the chamber
by a qualified electrician and route it outside properly
from the chamber.
▶ The pump is installed, the qualified electrician can make
the electrical connection.
Installation and operating instructions Wilo-Rexa CUT GI
Installation and electrical connection
5
6
S1
S2/S3
6.4.4 Portable wet well installation
WARNING
Risk of burns from hot surfaces!
Motor housing can become hot during operation. It
may cause burns. Allow the pump to cool down at
ambient temperature after switching it off!
WARNING
Separation of pressure hose!
Separation or movement of the pressure hose can
lead to (serious) injuries. Securely attach the pressure
hose to the outlet! Prevent buckling of the pressure
hose.
NOTICE
Pumping problems due to water level being
too low
If the fluid is lowered too much, separation of the
volume flow may occur. Furthermore, air cushions
may form in the hydraulic system, resulting in un-
desirable behaviour during operation. The minimum
permissible water level must reach the upper edge of
the hydraulics housing!
For portable installation, the pump must be equipped
with a pump support foot. The pump support foot en-
sures minimum ground clearance in the suction area and
enables secure footing if placed on a solid bearing sur-
face. In this installation type, the pump can be installed
anywhere in the operating space/installation site. A hard
base must be used at the installation location to prevent
sinking in case of soft bearing surfaces. A pressure hose
is connected on the pressure side. If operated for longer
periods of time, fix the pump firmly to the floor. This
prevents vibration and ensures quiet and low-wearing
running.
CAUTION! If the motor emerges during operation, ob-
serve the operating mode for non-immersed operation
(S2-15, S3 10 %*)!
* Operating mode S3 25 % is permitted if the necessary
motor cooling is guaranteed before the motor is
switched on again! To ensure the required cooling, the
motor must be completely immersed for at least 1 min.
en
101