
Diaphragm Pumps N 143/186.12
Installation and connection
Translation of original Operating and Installation Instructions, english, KNF 121610-121613 07/16
15
Make sure that the installation location is dry and the pump is
protected against rain, splash, hose and drip water.
The IP protection class of the pump motor is indicated on the
type plate.
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 from vibrations and jolts.
KNF recommends mechanically disengaging the pump from
the piping system. This can be achieved with flexible tubing or
pipes, for example. This will avoid transferring to the system
any pump oscillations that may arise.
6.2. Electrical connection
DANGER
Extreme danger from electrical shock
Only have the pump connected by an authorized
specialist.
Only have the pump connected when the power
supply is disconnected.
When connecting the device to a power source, the relevant
standards, directives, regulations, and technical standards
must be observed.
In the electrical installation, arrangements (complying with EN
60335-1) must be made for disconnecting the pump motor
from the electrical supply.
The motors of the pump must be protected according to EN
60204-1 (protection against excess current, or overloading).
For operating current see type plate.
It is recommended that an additional “Emergency Stop” switch
is installed.
The pump must be installed so that contact with live parts
(electrical connection) is impossible.
Connecting pump
1. Compare the supply data with the data on the motor-plate. For
operating current see type plate.
The voltage must not vary by more than + 10% and - 10% from
that shown on the type-plate.
2. Open terminal box cover.
3. All pumps except versions with 3 phase motor:
Connect the mains cables to the connections L1 and N of the
pump motor.
Installation location
Disengaging
Содержание N 143 AN.12 E
Страница 30: ......
Страница 31: ......
Страница 32: ...KNF worldwide Find your local KNF partner on www knf com...