Flowserve NRS 2-3 - Manual (Page 2)

2
Contents
Usage for the intended purpose ...................................................................................... 6
Safety Note ..................................................................................................................... 6
Warning ........................................................................................................................... 6
Important Notes
Page
Explanatory Notes
System description .......................................................................................................... 7
Function .......................................................................................................................... 7
Design ............................................................................................................................. 8
Technical data ........................................................................................................... 8 – 9
Design “b” ...................................................................................................................... 10
Design “c”/“d” ................................................................................................................ 10
Tools .............................................................................................................................. 10
Installation
Wiring
Design “b” ...................................................................................................................... 11
Wiring diagram for design “b” ........................................................................................ 11
Key to wiring diagram .................................................................................................... 11
Design “c”/“d” ................................................................................................................ 12
Wiring diagram for design “c”/“d” ................................................................................... 12
Attention ........................................................................................................................ 12
Warning ......................................................................................................................... 13
Check wiring .................................................................................................................. 13
Apply mains voltage ...................................................................................................... 13
Adjust switchpoint “Low Level” ...................................................................................... 13
Adjust switchpoint “Pump
ON
” ........................................................................................ 13
Adjust switchpoint “Pump
OFF
” ...................................................................................... 14
Adjust switchpoint “High Level” ..................................................................................... 14
Table “Switchpoints” ...................................................................................................... 14
Commissioning
Warning ......................................................................................................................... 15
Correct switchpoints ...................................................................................................... 15
Check power ................................................................................................................. 15
Operation
Warning ......................................................................................................................... 16
Fault finding list for troubleshooting ............................................................................... 16
Declaration of conformity .............................................................................................. 17
Annex