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Contents
1. Safety information .................................................................................................................8
1.1
General remarks .............................................................................................................8
1.2
Identification of notices ...................................................................................................8
1.3
1.4
1.5
Safety-conscious work ....................................................................................................8
1.6
1.7
1.8
1.9
2. Symbols used ......................................................................................................................10
3. General information ............................................................................................................11
3.1
Purpose ........................................................................................................................11
3.2
3.3
Operating conditions .....................................................................................................13
3.4
Non-return valve ...........................................................................................................14
3.5
3.6
Heat insulation ..............................................................................................................14
3.7
Flow direction ................................................................................................................14
4. Installation ............................................................................................................................15
4.1
General notes ...............................................................................................................15
4.2
4.3
Installation .....................................................................................................................15
4.4
4.5
4.6
4.6.1 Flange connection ..............................................................................................20
5. Electrical connection ..........................................................................................................21
5.1
Supply voltage ..............................................................................................................21
5.2
5.3
5.4
Switch settings ..............................................................................................................24
5.5
Twin design (91, 92) .....................................................................................................25