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Table of contents-
1.
Health and safety instructions
4
1.1 General health and safety instructions ........................................ 4
1.2 Unit-specific safety instructions .................................................. 5
1.3 Exclusion of liability .................................................................. 5
2.
Important information
6
2.1 Intended use ........................................................................... 6
3.
Explanations
6
3.1 Scope of supply ........................................................................ 6
3.2 System description ................................................................... 6
3.3 Function .................................................................................. 6
4.
Technical data
7
4.1 Versions .................................................................................. 7
4.2 Type of connection ................................................................... 8
4.3 Materials ................................................................................. 8
4.4 Application limits ...................................................................... 8
4.5 Corrosion resistance ................................................................. 8
4.6 Identification plate / Marking ..................................................... 8
5.
Construction
9
6.
Assembly
9
6.1 Version with flange ................................................................... 9
6.2 Version with welding end ......................................................... 10
6.3 Heat treatment of weldseams .................................................. 10
6.4 Flap indicator ......................................................................... 10
6.5 Float installation ..................................................................... 10
6.6 Drain piping ........................................................................... 10
6.7 Assembly of additional equipment ............................................ 11
7.
Electrical connection
11
7.1
Magnetic switch ...................................................................... 11
7.2
Primary element ..................................................................... 12
8.
Commissioning
12
8.1 Adjustment of indicating flaps .................................................. 12
8.2 Commissioning of unit together with the boiler ........................... 12
8.3 Commissioning of unit if boiler is already in operating condition ... 12
8.4 Anti-frost device ..................................................................... 12
Summary of Contents for NA7-50
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