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5.3. Commissioning
This chapter contains all important instructions for oper-
ating personnel for safe commissioning and operation of
the machinery. The following must be complied with and
checked:
•
Type of installation
•
Operation mode
•
Minimal submersion in water / maximum submersion
depth
After a longer downtime these points must also be
checked and detected defaults must be repaired!
The operation and maintenance manual must always
be kept with the machinery, or in a dedicated place
where it is accessible for the entire operating person-
nel.
The following points must be taken into account to avoid
personal and material damage when troubleshooting ma-
chinery failures:
The commissioning of the machinery must only
•
be carried out by qualified and trained personnel
in compliance with the safety regulations.
•
All personnel that is working on the machinery must
have received, read and understood the operating in-
structions.
•
Activate all safety equipment and emergency switch-
offs before commissioning.
•
Electrotechnical and mechanical settings must only
be carried out by specialists.
•
This machinery is only suitable for the use under the
indicated operating conditions.
5.4. Preparatory work
The machinery was constructed and fitted according to
the latest technology, so that it works for a long time and
reliably under normal operating conditions. This requires
however that you comply with all requirements and infor-
mations. Small oil leakages of the floating ring seals on
delivery are not problematic, but they must be removed
before lowering/immersion into the medium.
Please check the following points:
•
Cable run - no loops, slightly tightened
•
Check temperature of the medium and submersion
depth - see machinery data sheet
•
If a tube is used for pressure, this must be rinsed with
clear water so that no deposits lead to obstruction.
•
Check accessories, pipework, suspension devices for
firm and correct fitting
•
Check available level controls/protection against dry
run
5.5. Electrical system
The respective local and VDE regulations must be com-
plied with when choosing and installing the electrical
leads as well as connecting the motor. The motor must be
protected with a circuit breaker. The motor must be con-
nected according to the wiring diagram. Note the direction
of rotation! In the event of wrong direction of rotation the
machine does not perform as indicated and it can become
damaged under unfavourable circumstances.
26 | ENGLISH
Electric shock hazard! Faulty dealing with current
may jeopardize your life! All pumps with free cable
ends must be connected by a qualified electrician.
5.6. Rotational direction
No check is required for single phase motors, since these
always run in the correct direction.
5.7. Motor protection
The minimal requirement is thermal relay / circuit break-
er with temperature compensation, differential trigger
and anti-pumping device in accordance with VDE 0660/
respective local regulations. If the machinery is connect-
ed to electric circuits in which frequent interferences oc-
cur, we recommend additional installation of safeguarding
equipment (e.g. overvoltage relay, undervoltage relay or
phase failure relay, lightning protection, etc.). The local and
legal regulations must be complied with when connecting
the machinery.
Single phase motor
Pumps with 230 V/single phase motors have switchgear
with a motor circuit breaker and an operation condenser.
When using other switchgears the rated current of the
motor must be considered when laying out the circuit
breaker. For the FW-TP4/1, a condenser with 30µF must
be used.
5.8. Switch-on types
Switch-on types with plug/switchgears
Insert the plug into the socket provided for and use the on/
off switch on the switchgear.
5.8.1. After switching on
The rated current is surpassed quickly during the start-up
process. After termination of this process the work current
should not exceed the rated current. If the motor does not
start immediately after switch-on, it must be switched off
immediately. Before further switch-on the switch pauses
according to the technical data must be complied with.
In the event of a further interference the machine must
be switched off immediately. A further switch-on process
may only be started after recovery of the fault. The follow-
ing points should be checked:
•
operating voltage (permitted deviation +/- 5% of the
rated voltage)
•
Frequency (permitted deviation -2% of the rated fre-
quency)
•
Power input (permitted deviation between the phases
maximum 5%)
•
Voltage difference between the individual phases
(maximum 1%)
•
Switching frequency and pauses (see technical data)
•
Introduction of air in the feed stream, an impact plate
must be fitted, if appropriate.
•
Minimum submersion in water, level control, protec-
tion against dry run
•
Smooth run
•
Check for leakages, if appropriate take the necessary
steps according the chapter 'maintenance'
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