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Fig. 7: Wet well installation, portable
6.4.5
Stationary dry well installation
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Installation and electrical connection
Work steps
5
1
Pump foot
2
Pipe elbow
6
3
Storz coupling
4
Pressure hose
5
Lifting equipment
6
Attachment point for lifting equipment
7
Minimum water level
7
‡
Pump foot mounted.
‡
Pressure connection prepared: Pipe elbow mounted with hose connection or pipe elbow
1
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!
4. Lay the pressure hose and fasten it to a certain point (e.g. drainage). DANGER! Separa-
tion or movement of the pressure hose can lead to (serious) injury! Attach pressure
hose securely to the outlet.
5. Correctly route power supply cable. CAUTION! Do not damage power supply cable!
▶ Pump is installed, the qualified electrician can carry out the electrical connection.
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 undesirable behavior during
operation. The minimum permissible water level must reach up to the upper edge of the
hydraulics housing!
In dry well installation, the operating space is divided into the collecting space and the ma-
chine room. In the collecting space, the fluid flows and is collected, the pump technology is
installed in the machine room. The pump is installed in the machine room and connected to
the pipe system on the suction and pressure side. Observe the following points for installa-
tion:
▪ The suction- and pressure-side pipe system must be self-supporting. The pump must not
support the pipe system.
▪ Connect the pump to the pipe system ensuring that it is free of stress and vibrations. The
use of elastic connection pieces (compensators) is recommended.
▪ The pump is not self-priming, in other words, the fluid must flow in either automatically or
with supply pressure. The minimum level in the collecting space must be at the same height
as the upper edge of the hydraulics housing!
▪ Max. ambient temperature: 40 °C (104 °F)
WILO SE 2019-01
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