Wilo Rexa MINI3-S, Installation And Operating Instructions Manual

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en
Installation and operating instructions • Wilo-Rexa MINI3-S • Ed.01/2022-03 9
5. Route the connection cable to the socket/power connection
according to local regulations.
▶ Pump is installed.
5.2.2 Portable wet well installation
The pump can be installed at any location on the application site
when carrying out portable wet well installation. Observe and ad-
here to the following points:
• Secure the pump against falling over and moving (creeping)
during use.
• Secure the pressure hose to the hose connection.
100 mm
4 in
240 mm
9.5 in
195 mm
8 in
335 mm 13 in
407 mm 16 in
OFF!
S1
S3
Fig. 3: Installation dimensions
Fill level above: Continuous duty (operating mode im-
mersed)
Fill level below: Intermittent periodic duty (operating mode
non-immersed)
OFF Switch-off level
The following accessories are required for installation:
• Hose connection with 90° pipe elbow (article number: 2057179)
Consisting of threaded flange, 90° pipe elbow and installation
accessories
• 5 m (16.4 ft) pressure hose, inside diameter: 42 mm (1.65 in),
including hose clip (article number: 2027642)
✓ Site is prepared
✓ Hose connection assembled
1. Install the hose connection on the pressure port.
2. Slide the hose clip over the pressure hose.
3. Slide the pressure hose onto the hose connection.
4. Secure the pressure hose to the hose connection using the
hose clip.
5. Position the pump at the installation site.
CAUTION! Use a hard surface or underlay at the installation
site to prevent sinking on soft substrate.
6. Lay the pressure hose and fasten it in the appropriate place
(e.g. drain).
CAUTION! If the pump is placed in a full chamber,
hold the pump at a slight angle when immersing. This
causes the air to escape from the pump!
7. Route the connection cable to the socket/power supply.
▶ Pump is installed.
5.3 Electrical connection
• Mains connection with correctly installed protective earth con-
ductor.
• Residual-current device (RCD) is installed with 30 mA.
• Mains connection fuse protection: max. 16 A.
• Voltage (U) and frequency (f) data on the rating plate corres-
pond to the data of the mains connection.
Do not connect the pump if:
• The connection cable is damaged
Have the connection cable replaced by a qualified electrician or
the customer service.
• A standalone inverter is in use
Stand-alone inverters are used in autonomous power supplies,
e.g. solar power supply, and can generate overvoltages. Over-
voltages can destroy the pump.
• A multiple plug socket or power strip is in use
• An energy-saving plug is in use
This reduces the energy supply to the pump and the pump may
heat up too much.
• Operation on start-up controls
The pump is not suitable for operation on a frequency converter
or a soft start control.
• Explosive atmospheres
Do not connect and operate the pump inside potentially ex-
plosive atmospheres!
5.3.1 Connection: Pump with plug
The pump is equipped with a plug (CEE 7/7). The connection to the
mains is established by inserting the plug into the socket (type E or
type F). The plug is not watertight.
NOTICE! The thermal motor
monitoring is self-switching. A separate connection is not ne-
cessary.
Connection to an existing switchgear
DANGER
Risk of fatal injury due to electrical current!
Improper conduct when carrying out electrical work
can lead to death due to electric shock!
• Electrical work must be carried out by a qualified
electrician!
• Observe local regulations!
To connect the pump to a switchgear, cut off the plug. Connect
the connection cable according to the connection diagram in the
switchgear.