Wilo Rexa PRO C05 Series, Installation And Operating Instructions Manual

Page: 176 / 1244

en Spare parts
176 WILO SE 2019-02
Further steps for troubleshooting
If the points listed here do not rectify the fault, contact customer service. Customer
service can assist in the following ways:
▪ Telephone or written support.
▪ On-site support.
▪ Inspection and repair at the factory.
Costs may be incurred if you request customer services! Please contact customer ser-
vices for more information.
11 Spare parts
Spare parts are ordered via customer service. To avoid return queries and incorrect or-
ders, the serial or article number must always be supplied.
Subject to change without
prior notice!
12 Disposal
12.1 Oils and lubricants
Operating fluid must be collected in suitable tanks and disposed of in accordance with
the locally applicable guidelines. Wipe up drips immediately!
12.2 Protective clothing
Used protective clothing must be disposed off in accordance with the locally applicable
guidelines.
12.3 Information on the collection of
used electrical and electronic
products
Proper disposal and appropriate recycling of this product prevents damage to the envi-
ronment and danger to your personal health.
NOTICE
Disposal in domestic waste is forbidden!
In the European Union, this symbol can appear on the product, the packaging or the
accompanying documentation. It means that the electrical and electronic products
in question must not be disposed of along with domestic waste.
To ensure proper handling, recycling and disposal of the used products in question,
please note the following points:
▪ Only hand over these products at designated, certified collecting points.
▪ Observe the locally applicable regulations!
Please consult your local municipality, the nearest waste disposal site, or the dealer who
sold the product to you for information on proper disposal. Further recycling informa-
tion at www.wilo‑recycling.com.
13 Appendix
13.1 Operation with frequency con-
verter
The motor in series design (confirming to IEC 60034‑17) can be operated with a fre-
quency converter. Contact customer service if the rated voltage is over 415 V/50 Hz or
480 V/60 Hz. Because of the additional heating caused by harmonics, the rated power
of the motor must be around 10 % more than the power requirement of the pump. For
frequency converters with a low-harmonic output, it may be possible to reduce the
10 % power reserve. A reduction of the harmonic waves is achieved with output filters.
The frequency converter and filter must be compatible.
The configuration of the frequency converter depends on the rated motor current. Care
must be taken to ensure that the pump operates without jerking or vibration, especially
in the lower speed range. Otherwise, the mechanical seals can leak or be damaged. The
flow rate in the pipe must also be observed. If the flow rate is too low, the greater the
risk is of solids depositing in the pump and piping. A minimum flow rate of 0.7 m/s
(2.3 ft/s) with a pumping pressure of 0.4 bar (6 psi) is recommended.
It is important that the pump operates across the entire control range without vibra-
tions, resonance, oscillation or excessive noise. Increased motor noise caused by the
harmonics of the power supply is normal.