22
Operation
6
Operation
6.1
Before switching on
Compare the voltage and frequency information on the rating plate with the mains volt-
age and frequency values.
Check that the exhaust connection allows free flow (max. permissible pressure 1500
hPa absolute).
– Activate the shut-off valves in such a way that they open before or at the same time
as the pump is started.
Protect the pump sufficiently from taking in contaminants by means of suitable precau-
tions (e.g. dust filters); if necessary, check operating fluid regularly or replace at short-
er intervals.
Open cooling water supply;
– lever down screw 123 at the cooling water controller 41 by using a screw-
driver and vent the cooling chambers.
Switch on pump only with vented suction chamber, because the normal power of the
motor is insufficient for starting up under vacuum.
°F
°C
Q
123
41
