en – Original instructions
21
4 Mechanical Installation
4.1 Installation site checklist
DANGER:
Never install the unit in an explosive or flammable environment.
WARNING:
•
Always refer to the local and national regulations, legislation, and codes in force regarding
selection of installation site, and water and power connections.
•
Keep the manual, drawings, and diagrams accessible for detailed installation and operation
instructions. It is important that the manual is available for equipment operators.
•
Ensure that the ingress protection rating of the Unit (IP 55, Type 1) is suitable for the
installation environment.
CAUTION:
•
Ingress protection. IP55 (Type 1) rating can only be guaranteed if the unit is properly closed.
•
Make sure that there is no liquid on the unit before opening the plastic cover.
•
Ensure all cable glands and unused holes for glands are properly sealed.
•
Ensure that the plastic cover is properly closed.
•
Device damage through contamination. Do not leave unit without the Terminal Box Cover.
4.2 Unit installation
Install the unit according to the systems liquid flow.
•
Usually arrows on the pump housing show flow and rotating direction.
•
The standard rotating direction for the unit is clockwise (seen from fan cover). For more
information contact Service.
•
The unit must be installed according to Figure 8.
•
Always install a backflow-prevention device on the suction side.
•
Always install downstream the pressure transmitter (if any) supplied.
Figure 8: Unit installation
