Wilo Control EC-L, Installation And Operating Instructions Manual

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en
Installation and operating instructions • Wilo-Control EC-L • Ed.04/2022-09 53
12.2 Information on the collection of
used electrical and electronic
products Proper disposal and appropriate recycling of this product prevents damage to the environ-
ment and putting your personal health at risk.
NOTICE
Disposal in domestic waste is prohibited!
In the European Union this symbol may be included on the product, the
packaging or the accompanying documentation. It means that the elec-
trical and electronic products in question must not be disposed of along
with domestic waste.
Please note the following points to ensure proper handling, recycling and disposal of the
used products in question:
• Hand over these products at designated, certified collection points only.
• 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. See www.wilo‑recycling.com
for more information about recycling.
Subject to change without prior notice!
13 Appendix
13.1 Potentially explosive atmospheres:
Connection of signal transmitters
and pumps
DANGER
Risk of explosion if the switchgear is installed in potentially ex-
plosive areas!
The switchgear does not have its own explosion protection class and
must always be installed outside of potentially explosive areas! The con-
nection must be made by a qualified electrician.
13.1.1 Ex-zones The connected pumps and signal transmitters may only be used in the ex-zones 1 and 2.
Use in ex-zone 0 is prohibited!
13.1.2 Pumps
• Pumps comply with the ignition protection class “flameproof enclosure”.
• Connect pumps directly to the switchgear. The use of electronic start-up controllers is
prohibited!
• Connect monitoring devices outside of the flameproof enclosure via a cut-off relay (Ex-
i, intrinsically safe circuit).
13.1.3 Signal transmitter
DANGER
Risk of explosion due to incorrect signal transmitter!
Do not connect electrode in an explosive atmosphere (Ex zone)! There is
a risk of explosion!
Always use float switch or level sensor in explosive atmospheres (ex
zone).
Connect signal transmitters in explosive atmospheres via an intrinsically safe circuit:
• Connect the float switch using an Ex cut-off relay!
• Connect level sensor via a Zener barrier!