Danfoss VACON NX Commissioning And Maintenance Manual page 57

TECHNICAL SPECIFICATION
Maximum input power:
•
3.6 kW
Supply pressure / Supply distance (primary circuit):
•
1.0 bar / 40 m + 40 m straight pipe
Liquid volume, primary side:
•
21.5 liter
Concentration of glycol
•
maximum 25%
Maximum flow secondary circuit:
•
360I/min
Pressure drops on customer circuit (= secondary circuit), see Appendix 1.
1)
Note! Combined nominal flow of AC drives must not exceed 90% of the maximum rate of flow.
2)
Maximum straight pipe distance between HX-unit and drive for achieving maximum flow. Elbows
and other components will reduce the pipe distance.
3)
Pipeline to AC drive (40 m) and back (40 m). If customer pipelines are long, size of the pipelines
must be DN32 or DN40.
4)
The pressure before 3- or 2-way valve must be at least 2 bar to prevent cavitations.
See cavitations diagram in Components Specifications and Maintenance Instructions n:o 2 , TAC
Venta, page 2.
Local contacts: http:/ / dr ives.danfoss.com/ danfoss- dr ives/ local - contacts/
2)
3)
4)
VACON 5 7
8