Portable Wet Well Installation - Wilo Rexa PRO Serie Instrucciones De Instalación Y Funcionamiento

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6.4.4

Portable wet well installation

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Fig. 6: Wet well installation, portable
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Installation and electrical connection
WARNING
Danger of burning due to hot surfaces!
The motor housing can get hot during operation. It can lead to burns. Allow the pump to
cool down to ambient temperature after switching off!
WARNING
Separation of the pressure hose!
Separation or movement of the pressure hose can result in (serious) injuries. Attach pres-
sure hose securely to the outlet! Prevent buckling of the pressure hose.
NOTICE
Pumping problems due to water level being too low
The hydraulics are self-venting. Smaller air cushions are resorbed during pumping. If the
fluid is lowered too much, separation of the volume flow may occur. The minimum per-
missible water level must reach up to the upper edge of the hydraulics housing!
For portable installation, the pump must be equipped with a foot. The pump support foot
ensures the minimum ground clearance in the suction area and allows secure footing on a
firm foundation. Thus in this installation type, any positioning in the operating space/instal-
lation site is possible. To prevent sinking on soft surfaces, a hard base must be used at the
installation site. A pressure hose is connected on the pressure side. If operated for longer
periods of time, fix the pump firmly to floor. This prevents vibration and ensures quiet run-
ning and low wear.
Note for non-immersed operation
▪ P 13 motor: The motor can be run non-immersed in "non-immersed" operating mode (S1,
S2-30, S3 25 %*).
▪ P 17 motor: Running the motor non-immersed is not permitted!
* If the required cooling of the motor is ensured before a re-activation, the operating mode
S3 50 % is permissible! To ensure the required cooling, the motor must be completely im-
mersed for at least 1 minute!
Work steps
1 Pump foot
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2 Pipe elbow with hose connection or Storz pipe coupling
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3 Storz hose coupling
S1
4 Pressure hose
5 Lifting equipment
6 Attachment point
S* Non-immersed operating mode: Observe the information on the rating plate!
S*
‡
Pump foot mounted.
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1
Pressure connection prepared: Pipe elbow mounted with hose connection or pipe elbow
with Storz coupling.
1. Attach lifting equipment to the attachment point of the pump with a shackle.
2. Raise pump and set down on the intended work place (pump chamber, pit).
3. Place pump on a firm foundation. CAUTION! Sinking must be prevented!
WILO SE 2019-02