Start Up And Operation - ProMinent Hydro 2 Series Operating Instructions Manual

Start up and operation

8 Start up and operation
Safety information
48
WARNING!
ATEX pumps in areas at risk from explosion
– Make sure that a suitably competent person checks
whether the appropriate installation information from
the "Installation " chapter has been implemented
correctly.
– Make sure that a "recognised competent person"
checks the electrical installation and in particular the
intrinsically safe power circuits.
– Set the opening pressure of the relief valve at a
maximum of no more than 1.5 times the rated pres‐
sure of the pump.
WARNING!
Fire hazard with flammable media
Only with flammable media: They can be ignited by
oxygen.
– The pump may not work if there is a mixture of feed
chemical with oxygen in the liquid end. A specialist
may need to take appropriate actions (using inert
gas, ...).
WARNING!
Hot surface
In event the power end motor is loaded excessively, its
surface may become very hot.
– Avoid contact.
– If necessary, mount a guard plate.
WARNING!
Risk of burns with hot feed chemicals
If hot feed chemicals can heat the liquid ends above the
permissible surface temperatures, persons can suffer
burns from them.
– Consider attaching a "Hot surface" label to the liquid
end or ...
– fitting a guard plate.
WARNING!
Only motors with a frequency converter: Danger of elec‐
tric shock
The danger of electric shock remains for 3 minutes after
the mains voltage has been switched off on conducting
parts of the motor with an integrated frequency converter
and on the lines themselves.
– After switching off, allow the device to stand for 3
minutes before opening the terminal box.