Diaphragm liquid pump NF 30, NFB 30
Installation and connection
KNF Flodos AG BA_NF30_EN_05_069206.docx
Translated from the Original Operating and Installation Instructions
16
For pumps with alternating current motors:
WARNING
Danger of injury during operation
➔
Take protective measures against touching parts
which are energised (live), such as electrical
connections or windings.
➔
Take protective measures against touching
moving parts (e.g. fan).
Danger of damaging the pump during operation
➔
Take protective measures to ensure that no
foreign objects can get into the pump or
penetrate the motor (see protection class).
6.2. Electrical connection
For pumps with alternating current motors:
DANGER
Risk of electric shock, danger of death
➔
Pump should only be connected by a specialist.
➔
Only connect the pump when the power supply
is turned off.
For pumps with direct current motors:
➔
Pump should only be connected by a specialist.
➔
Only connect the pump when the power supply is turned off.
➔
All electrical connection work must adhere to the pertinent
guidelines, regulations and technical standards.
Connecting the pump
1. Make sure that the power supply data match the data on the
motor type plate. The current consumption can be found on the
type plate.
2. Connect the motor cables. Electrical data Chapter 4.
Always check polarity of cables.
For DC motors:
red motor lead: +
black motor lead: -
In the case of brushless DC motors:
incorrect polarity may damage to the electronics.
If using AC motors, the power supply must not deviate more
than a maximum of +/- 10 % from the specifications on the
type plate.
Touch and foreign object
protection
