Vacuum Pump System SC 920G
Operation
Translation of original Operating Instructions, English, KNF 121308-121311 07/18
21
WARNING
Hazard of the vacuum pump system bursting due to
excessive pressure increase
Do not exceed max. permissible operating
pressure (0 bar).
Monitor pressure during operation.
If the pressure exceeds the maximum permis-
sible operating pressure, immediately shut down
vacuum pump system and eliminate fault (see
chapter 10, page 40).
WARNING
Personal injury caused by poisoning or explosion
and damage to the pump.
Make sure that no reactive or explosive mixtures
will be produced when ventilating the vacuum
system through the air inlet.
Make sure that the media are compatible with
each other (when running two different
processes simultaneously).
CAUTION
Danger of high performance condenser bursting.
The high-performance condenser is not pressure-
proof.
Make sure that the high performance
condenser’s gas outlet is not blocked.
In order for the high-performance condenser to recover solvent
from the delivered gas, it must be cooled by means of a cold
water supply or recirculating cooler.
When using a coolant valve:
WARNING
Danger of the high performance condenser bursting
Make sure that the coolant valve is mounted
between the coolant supply and the coolant inlet
port of high performance condenser.
With the pump at a standstill, open pressure and suction lines to
normal atmospheric pressure
At appropriate intervals, inspect the fill level in the condensation
collection flasks located on the suction and pressure sides of the
vacuum pump system (Fig. 2/
12
and
15
, page 11). When needed,
empty the collection flasks; properly dispose contents.
Switching vacuum pump system on
The vacuum pump system may not start up against overpres-
sure during switch-on. During operation as well, there may be
no overpressure in the pneumatic lines. If a pump starts against
pressure, it may block. This activates the thermal switch, and
the pump switches off.
Pump standstill
Inspect and empty collection
flasks
