Shut-Down; Removal; Maintenance And Repair - Wilo Control MS-L Series Installation And Operating Instructions Manual

en
9.3

Shut-down

9.4

Removal

10

Maintenance and repair

32
Maintenance and repair
To decommission the pumps, switch off the pumps and switchgear at the main switch.
The switchgear is ready for operation at any time. Adhere to the following points during
the standstill period:
ƒ
Ambient temperature: -30 ... +60 °C
ƒ
Max. humidity: 50 %, non-condensing
‡
System is prepared for decommissioning, e.g. inlet in pump chamber closed.
1. Press the "stop" button.
⇒ The "Pump operation" LED goes out.
⇒ LED "auto" flashes.
2. Turn main switch to the "0/OFF" position.
⇒ The "on" LED goes out.
⇒ The "auto" LED goes out.
3. Secure the main switch against being activated by unauthorised persons (e.g. lock
main switch)
▶ Switchgear switched off.
DANGER
Risk of death due to electrocution!
Improper conduct when carrying out electrical work can lead to death due to electric
shock! Electrical work must be carried out by a qualified electrician in accordance
with the locally applicable regulations.
‡
Decommissioning performed.
‡
Mains connection is switched so that it is voltage-free and safeguarded against
being activated by unauthorised persons.
‡
The power connection for fault and run signals is switched so that it is voltage-free
and safeguarded against being activated by unauthorised persons.
1. Open the switchgear.
2. Disconnect all connection cables and pull them out through the threaded cable
connection.
3. Close off the ends of the connection cables watertight.
4. Seal threaded cable connections watertight.
5. Support the switchgear (e.g. get a second person to help).
6. Loosen the switchgear fastening screws and remove the switchgear from the
structure.
▶ Switchgear removed. Observe the following for storage!
DANGER
Risk of death due to electrocution!
Improper conduct when carrying out electrical work can lead to death due to electric
shock! Electrical work must be carried out by a qualified electrician in accordance
with the locally applicable regulations.
NOTICE
Unauthorised work or structural changes are prohibited!
Only maintenance and repair work described in this manual may be carried out. All
other works and any alterations to the construction may only be carried out by the
manufacturer.
WILO SE 2020-05