38
WILO SE 12-2015 V05 DIN A4
English
COMMISSIONING
•
Connect the suction- and pressure-side pipe
system. To ensure that the pipe system is
connected free of stresses and vibration, we
recommend using elastic connection pieces
(compensators).
•
Route the power supply cables (
must
be pro-
vided by the customer) in accordance with local
requirements.
•
Have the electrical connections made by a
qualified electrician.
2. Install optional accessories, such as alarm switch
-
gear for detecting moisture.
3. Commissioning the hydraulics: about 2–4 h
•
As described in the "Commissioning" section
•
Open slide valves on suction and pressure sides.
•
Vent the hydraulics and pipe system.
5.4. Electrical connection
ELECTROCUTION hazard!
Improper electrical connections can lead to
fatal electric shocks. Electrical connections
may only be carried out by a qualified electri
-
cian approved by the local energy supply
company, in accordance with locally applica-
ble regulations.
NOTE
Also note all the information regarding electrical
connection in the operating and maintenance
manual for the motor!
•
The current and voltage of the mains connection
must be designed in accordance with the infor
-
mation in the operating and maintenance manual
for the motor. See also the specifications on the
rating plate for the motor.
•
The power supply cable must be provided by the
customer. The cable cross-section and chosen
routing option must comply with local standards
and requirements.
•
Any available monitoring equipment, e.g. sealing
chamber control, must be connected and tested
to ensure that it is working properly.
•
Earth the hydraulics according to the regulations.
Earthing is provided by the motor connection. Al
-
ternatively, the hydraulics can be earthed through
a separate connection. The cross section of the
cable for the earth conductor connection must
comply with local regulations.
5.4.1. Check the monitoring equipment before
commissioning
If the values deviate from the specifications, the
monitoring equipment may be faulty. Consult
Wilo customer service.
Optional pencil electrode for sealing chamber
control
Before the pencil electrode is connected, it must
be checked with an ohmmeter. The following
values must be complied with:
•
This value must approach infinity. If the value
is low, there is water in the oil. Also observe the
instructions of the optional evaluation relay.
5.4.2. Connecting the monitoring equipment
Connecting the pencil electrode (available as an
option) for sealing chamber control
•
The pencil electrode must be connected via an
evaluation relay. We recommend the “NIV 101/A”
relay for this. The threshold is 30 kΩ. When the
threshold is reached, a warning must be given or
the unit switched off.
CAUTION!
If there is only a warning, the hydraulics could
be irreparably damaged by water ingress. We
always recommend switching the hydraulics
off!
5.4.3. Connecting the standard motor
The information for connecting the motor to the
mains, information concerning existing monitor
-
ing equipment and connecting this equipment,
and concerning possible activation types can be
found in the operating and maintenance manual
for the motor.
5.5. Operator responsibilities
5.5.1. Recommended monitoring equipment
The hydraulics is driven by a standard motor.
Standard motor are not overflow-proof. We
therefore recommend using an alarm switchgear
to record major leakage. In the event of a major
discharge of fluid (e.g. faulty piping), an alarm can
be issued and the unit switched off.
6. Commissioning
NOTE
Also note all the information regarding com
-
missioning in the operating and maintenance
manual for the motor!
The “Commissioning” section contains all the im
-
portant instructions for the operating personnel
for starting up and operating the hydraulics.
The following conditions must be adhered to and
monitored:
•
Maximum ambient temperature (see installation
and operating instructions for motor)
•
All slide valves on the suction- and pressure-side
are open
These general conditions must also be checked
after a lengthy period without operation, and
any defects detected must be repaired!
Always keep this manual either by the hydraulics
or in a place specially reserved for it, where it is
accessible for the entire operating personnel at
all times.