KNF N 2400.15, Operating And Installation Instructions

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Diaphragm pump N 2400.15 Installation and connection
Translation of original Operating and Installation Instructions, english, KNF 308934-308937 09/18 21

Fasten the connection cables so that:

the cables do not contact moving or hot parts.

the cables will not chafe or be damaged on sharp edges or
corners.

no pulling or pushing forces are exerted on the cable’s
connection points (strain relief).
The pumps are fitted as standard with PTC sensors to protect
against overloading (connection according to operating instruc-
tions of the motor).
The 3~ motors are provided for the operation with frequency
converter.
Connecting pump
1. Compare the supply data with the data on the motor plate. For
maximum operating current of the pump see pump’s type
plate.
See operating instructions of the motor for permissible devia-
tion of the voltage.
2. Open terminal box cover.
3. Connect the earth (ground) wire to the motor.
4. Connect the mains cables according to the operating instruc-
tion of the motor.
Set the direction of rotation in accordance with the arrow on
the fan guard (see 7.1 Pump installation and motor operating
instructions).
5. Close the terminal cover box.
7.3. Pneumatic connection
CAUTION
Personal injury or damages to property by ejected
protective plugs
If the protective plug at the pressure side of the
pump hasn’t been removed, it could be ejected be-
cause of the overpressure during operation.

Remove the protective plug during the installa-
tion.

Only connect components to the pump which are designed for
the pneumatic data of the pump (see Chapter 4, Technical Da-
ta).

Protect the pump with a pressure relief device between the
pressure connection of the pump and the first shut-off valve.

If the pump s used as a vacuum pump, safely discharge the
pump exhaust at the pump’s pneumatic outlet.
Attach connection cables
PTC sensors
Connected
components
Pressure relief device
Pump exhaust