Wilo Rexa MINI3, Инструкция по установке и эксплуатации

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en
8 Installation and operating instructions • Wilo-Rexa MINI3 • Ed.03/2022-05
• Seawater
Intended use also includes compliance with this manual. Any other
use is regarded as non-compliant with intended use.
4 Transport and storage
CAUTION
Soaked packaging may tear!
The product may fall on the ground if unprotected
and may be damaged. Lift wet packaging carefully
and replace it immediately!
• Wear protective equipment!
• Carry the pump by the handle. Never carry or pull on the con-
nection cable!
• Clean the pump and disinfect if necessary.
• Close the discharge connection.
• Protect the connection cable against kinking and damage.
• Use original packaging for transport and storage.
• Pack the pump when dry. Wet or humid pumps may soften the
packaging.
• Storage conditions:
–
Maximum: -15 ... +60 °C (5 ... 140 °F), max. humidity: 90 %,
non-condensing
–
Recommended: 5 ... 25 °C (41 ... 77 °F), relative humidity:
40 … 50 %
5 Installation and electrical connection
5.1 Installation types
• Vertical stationary wet well installation
• Vertical portable wet well installation
5.2 Installation
• Wear protective equipment!
• Do not install a damaged or defective pump.
• Frost-free location.
• Lay the connection cable properly. During operation there must
be no danger (stumbling, damage, etc.).
• Float switch must be able to move freely!
5.2.1 Stationary wet well installation
For stationary wet well installation, the pump is installed directly
onto the pressure pipe. Observe and adhere to the following
points:
• The connected pressure pipe must be self-supporting. The
pressure pipe must not be supported by the pump.
• The pump may oscillate slightly during operation. These oscilla-
tions must be dissipated via the pressure pipe.
• Ensure that the connection to the pressure pipe is stress-free –
do not screw it in too tightly.
• The pressure pipe must not be smaller than the pump’s dis-
charge connection.
• Seal pipe connections with Teflon tape.
• Install all specified valves in accordance with local requirements
(gate valve, non-return valve).
• Lay the discharge pipe frost-proof.
• Air pockets in the pump and in the discharge pipe can lead to
delivery problems.
Installing the ventilation systems:
–
For example, air vent valve
–
In the discharge pipe
–
Before the non-return valve
• Install the discharge pipe as a “pipe loop” to avoid backflow
from the main public sewer.
At its highest point, the bottom edge of the pipe loop must be
above the locally determined backflow level!
OFF!
ON
S1
S3
min. 450x450 mm
min. 18x18 "
min. 500 mm
min. 20 "
335 mm
13 "
216 mm
8,5 "
113 mm
5 "
416 mm
16 "
Fig. 2: Installation dimensions and switching points
ON Switch-on level
OFF Switch-off level
Fill level above: Continuous duty (operating mode im-
mersed)
Fill level below: Intermittent periodic duty (operating mode
non-immersed)
✓ Site is prepared.
✓ Pressure pipe properly installed.
1. Screw the discharge pipe fully into the pump’s discharge con-
nection.
2. Position the pump at the installation site.
CAUTION! Use a hard surface or underlay at the installation
site to prevent sinking on soft substrate.
3. Connect the discharge pipe to the pressure pipe (e.g. using a
flexible hose section).
4. Secure the connection cable to the pressure pipe and route it
to the socket/power supply.
▶ 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.
✓ Site is prepared
✓ Pressure hose to be used: Min. inside diameter 1½"
✓ Hose clip to be used: 40 − 60 mm inside diameter (1.6 − 2.4 in)
✓ Hose connection to be used: G 1½" (with male thread)
1. Attach the hose connection.
Twist the hose connection into the pressure port as far as it
will go.
2. Slide the hose clip over the pressure hose.