Behaviour During Operation; Decommissioning/Disposal; Deactivating Automatic Mode On The Unit; Temporary Shutdown - Wilo Control MS-L 2x4kW Notice De Montage Et De Mise En Service

DECOMMISSIONING/DISPOSAL

• Pump cycling between the base-load and the
peak-load pump is carried out after each pump-
ing procedure.
NOTE
High-water protection is active in automatic
mode. When the switch-on level for high-water
protection is reached, the following occurs:
• forced switch-on of the pumps.
• a visual warning, the High water LED, lights up
constantly.
• an audible warning is emitted via a constant
tone.
• a collective fault signal contact (SSM) is acti-
vated.
• an external high water alarm.

7.6. Behaviour during operation

When operating the switchgear, always follow the
locally applicable laws and regulations for work
safety, accident prevention and handling electri-
cal products.
To help to ensure safe working practice, the
responsibilities of employees should be clearly set
out by the operator. All personnel are responsible
for ensuring that regulations are observed.
Check the settings at regular intervals as to
whether they meet the current requirements.
The settings may need to be adjusted.
8. Decommissioning/disposal
All work must be carried out with the greatest
care.

8.1. Deactivating automatic mode on the unit

1. Press the "Stop" button on the control panel.
2. The "Pump operation" LED goes out.
3. The "auto" LED flashes
4. The switchgear is in stand-by mode.
NOTE
High-water protection is not active in standby
mode. When the switch-on level for high-water
protection is reached, the following occurs:
• forced switch-on of the pumps.
• a visual and audible warning
• The collective fault signal contact (SSM) is
activated.
• an external high water alarm.

8.2. Temporary shutdown

For temporary deactivation, the control is
switched off and switchgear is switched off via
the main switch.
The switchgear and the unit are now ready for
operation at any time. The defined settings are
stored retentively in the switchgear and are not
discarded.
Make sure that the ambient conditions are ob-
served accordingly:
• Ambient/operating temperature: -30 ... +60 °C
Installation and operating instructions Wilo-Control MS-L 2x4kW
• Air humidity: 40...50 %
Prevent formation of condensate!
BEWARE of moisture!
Ingress of moisture will result in damage to
the switchgear. During standstill time, pay
attention to the permissible air humidity and
ensure the switchgear is stored so it is over-
flow-proof.
1. Press the "Stop" button.
2. Wait until the "Pump operation" LED goes out.
3. The "auto" LED flashes.
4. Switch off the switchgear using the main switch
("OFF" position).
5. The "On" LED goes out.

8.3. Final shutdown

POTENTIALLY fatal danger due to electrical
voltage!
Incorrect procedures can cause fatal electric
shocks. This work may only be carried out by
a qualified electrician approved by the local
power supplier, in accordance with locally
applicable regulations.
1. Press the "Stop" button.
2. Wait until the "Pump operation" LED goes out.
3. The "auto" LED flashes.
4. Switch off the switchgear using the main switch
("OFF" position). On switchgears with a plug,
remove the plug from the socket.
5. The "On" LED goes out.
6. Switch off the entire unit so it is voltage-free and
secure it against accidental activation.
7. If the terminal for the collective fault signal is oc-
cupied, the external voltage source present there
must also be switched so it is voltage-free.
8. If the terminal for the external SSM alarm is oc-
cupied, the external voltage source present there
must also be switched so it is voltage-free.
9. Disconnect all power supply cables and pull these
out of the threaded cable connections.
10. Connect the ends of the power supply cables so
that no moisture can enter into the cable.
11. Dismount the switchgear by undoing the screws
on the substructure.

8.3.1. Return delivery/storage

For shipping purposes, the switchgear must be
packaged so it is protected against knocks and
waterproof.
Please also refer to the "Transport and storage"
section.

8.4. Disposal

Proper disposal of this product avoids damage to
the environment and risks to personal health.
• Use the services of public or private waste dis-
posal companies, or consult them for the disposal
of the product or parts thereof.
• More information about proper disposal can be
obtained from the municipal authorities, the
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