Shut-down/dismantling
en
Installation and operating instructions Wilo-Padus PRO
21
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Provide the necessary protective equipment and make sure that the personnel wears
it.
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Provide adequate aeration in closed rooms.
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Take immediate countermeasures if there is a build-up of toxic or suffocating gases!
8.3
Shut-down
The pump is deactivated during decommissioning, but remains installed. This ensures
that the pump is always ready for operation.
‡
To protect the pump from frost and ice, always immerse the pump completely in
the fluid.
‡
The temperature of the fluid must always be above +3 °C (+37 °F).
1. Switch off the pump at the operating point.
2. Secure the operating point against being switched on again by unauthorised per-
sons (e.g. lock main switch).
▶ The pump is out of operation and can now be dismantled.
If the pump remains installed after decommissioning, observe the following:
ƒ
Ensure that the prerequisites for decommissioning are maintained for the complete
period of decommissioning. If these prerequisites cannot be guaranteed, dismantle
the pump after decommissioning!
ƒ
For an extended period of decommissioning, carry out a 5-minute function test at
regular intervals (monthly to quarterly).
CAUTION! A function test may only be car-
ried out under the applicable operating conditions. A dry run is not permitted!
Non-compliance can result in irreparable damage!
8.4
Removal
DANGER
Danger due to fluids hazardous to health!
If the pump is used in fluids hazardous to health, decontaminate the pump after dis-
mantling and before carrying out any other work! There is a risk of fatal injury! Ob-
serve the specifications in the work regulations! The operator must make sure that
the personnel have received and read the work regulations!
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.
DANGER
Risk of fatal injury due to dangerous lone working practices!
Work in chambers and narrow rooms as well as work involving risk of falling are dan-
gerous work. Such work may not be carried out autonomously! A second person
must be present for safety reasons.
WARNING
Risk of burns from hot surfaces!
Motor housing can become hot during operation. It may cause burns. Allow the
pump to cool down at ambient temperature after switching it off!
NOTICE
Use only properly functioning lifting equipment!
Use only properly functioning lifting equipment to lift and lower the pump. Ensure
that the pump does not become jammed during lifting and lowering. Do
not
exceed
the maximum bearing capacity of the lifting equipment! Check that lifting equip-
ment is functioning properly before use!
