Diaphragm Vacuum Pump N 828 / N 838
Installation and connection
Translation of original Operating and Installation Instructions, English, KNF 121249-121517 09/19
23
WARNING
Danger of burns from hot surfaces
Hot surfaces may be caused by overheating of the
pump.
Install the pump so that the motor fan can intake
sufficient cooling air.
For pumps with fan: Install the pump so as accidental finger
contact with the fan is impossible.
When installing, make sure that there are no combustible or
thermally malleable objects placed in the immediate ambient of
the hot pump parts (head, motor).
Make sure that the installation location is dry and the pump is
protected against rain, splash, hose and drip water as well as
other pollutions.
Make sure, that the installation location is accessible for
maintenance and service.
The IP protection class of the pump motor is indicated on the
pump label.
Install the pump at the highest point in the system to prevent
condensate from collecting in the pump head.
Protect the pump from dust.
Protect the pump against grease and oils.
Protect the pump from vibrations and jolts.
WARNING
Personal injury and/or damage to property because
of vibration
In conjunction with adjacent components, vibration of
the pump may result in crushing and/or damage to
these components.
Make sure that vibrations of the pump do not re-
sult in hazards associated with adjacent compo-
nents.
Protect the pump against contact and intrusion of foreign mat-
ter.
Cooling air supply
Immediate ambient of the hot
pump parts
Installation location
Foreign matter protection