Installation and connection
Diaphragm pump N87.9
16
Translation of Original Operating and Installation Instruction, english, KNF 121538-121541 11/22
Cooling air supply
WARNING
Danger of burning on hot surfaces
Hot surfaces could occur if the pump overheats.
à
When installing the pump, make sure that
sufficient cooling air infeed and discharge is
ensured.
Immediate environment of the
hot pump parts
à
During installation, make sure that no combustible or thermally de-
formable objects are positioned in the immediate environment of the
hot pump parts (head, drive).
Installation location
à
Make sure that the installation location is dry and that the pump is pro-
tected from rain, spray water, splash water, dripping water and other
contaminants.
à
Make sure that the installation location allows access for periodic main-
tenance and inspection.
The IP protection class of the pump motor is specified on the type
plate.
à
Install the pump at the highest point in the system to prevent conden-
sation from collecting in the pump head.
à
Protect the pump from dust.
à
Protect the pump from vibration and impact.
6.2 Electrical connection
DANGER
Danger to life from electric shock
à
Only have the pump connected by an autho-
rized specialist.
à
Only have the pump connected if the power
supply is disconnected.
à
When connecting to a power source, observe the applicable standards,
regulations, directives, and technical standards.
à
Install a device for separating the pump motor from the electrical grid in
the electrical installation (e.g. in accordance with EN 60335-1).
Refer to the type plate for the maximum current consumption of the
pump.
à
Install an EMERGENCY OFF device such that it is not possible for
there to be an automatic restart or for hazardous situations to persons
and property to occur.
à
Install the pumps in such a way that it is not possible to touch electri-
cally live parts (electrical connection).
Fastening the connection cables
à
Fasten the connection cables so that
– the cables do not come into contact with movable or hot parts.
– the cables cannot be worn or damaged on sharp corners or edges
– no tensile and pressure forces are exerted on the connection point
of the cables (strain relief)