Safety Information
10
300314330_002_C7 - 05/2021 - © Leybold
16
For models with external frequency converter only:
Consider the following precautions for the output circuit wiring.
Do not connect any other load than a 3 phase motor to the frequency
converters output.
Never connect a power source to the frequency converters output.
Never short or ground the output terminals.
Do not use phase correction capacitors.
17
The pump must be integrated in the system control arrangement so
that it can not run-up automatically after it has been shut down due to
overtemperature. This applies equally to emergency shut-down
arrange ments. After having determined the fault cause, the pump
should be switched on manually again.
18
We recommend the use of the external display (accessory) to operat-
ing the frequency converter. Attach the external display appropriately if
it used permanently.
19
Work on the frequency converter within the motor casing must always
be left to suitably instructed personnel only.
0.3 Thermal Hazards
1
Under certain ambient conditions parts of the pump may attain tem-
peratures over 80° C. There then exists the risk of suffering burns.
Note the danger symbols on the pump and in the case of a hot pump
wear the required protection equipment.
If there is the risk of touching hot surfaces inadvertently, install corre-
sponding protection. When working on a pump which is still warm
from operation, always wear protective gloves.
2
Handle the pump only while vented and after having let it cool down.
3
Before disassembling any cooling water lines, leave the pump to cool
down, shut off the feed line.
4
When uninstalling the cooling water lines, take note of splashing water.
Heated water can cause burns.
5
Never remove the oil-fill or oil-drain plugs while the pump is running.
There exists the risk of suffering burns. Always wear protective gloves
and protective goggles also for protection against the oil.
6
Operating the pump with less than the specified amount of cooling
water will result in excessively high surface temperatures. Moreover,
there exists the risk of suffering burns.
7
DRYVACs without cooling water unit:
(Industrial versions) For these DRYVAC pumps do
not
connect the
cooling water using self-sealing quick locks or shut off the feed and
discharge lines with valves.
CAUTION
