Igema NA7-50 Installation And Operating Instruction page 4

7. Assembly ..................................................................................................... 13-15
7.1 Version with flange ....................................................................................... 13
7.2 Version with welding end ............................................................................. 14
7.3 Heat treatment of weldseams ...................................................................... 14
7.4 Flap indicator ............................................................................................... 14
7.5 Float installation ........................................................................................... 14
7.6 Drain piping .................................................................................................. 14
7.7 Assembly of additional equipment ............................................................... 15
8. Electrical connection .................................................................................. 15-16
Magnetic switch ..................................................................................................... 15
Primary element ..................................................................................................... 16
9. Commissioning ........................................................................................... 16-17
9.1 Adjustment of indicating flaps ...................................................................... 16
9.2 Commissioning of unit together with the boiler ............................................. 16
9.3 Commissioning of unit if boiler is already in operating condition .................. 17
9.4 Anti-frost device ........................................................................................... 17
10. Maintenance ................................................................................................ 17-18
10.1 Cleaning of standpipe (2) and float (2.1) ................................................. 17-18
10.2 Tightening torques ........................................................................................ 18
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