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4 205 540 / 01 Table of contents
1. To get the most out of your heating system, read the operating instructions! .............. 3
1.1 Important addresses and telephone numbers ..................................................................................... 3
1.2 Key to symbols used .............................................................................................................................. 3
1.3 System data ............................................................................................................................................. 4
1.4 Calculation basis ..................................................................................................................................... 4
2. Safety instructions ............................................................................................................... 5
2.1 Cautionary notes ..................................................................................................................................... 5
2.2 Intended use ............................................................................................................................................ 5
3. Customer service ................................................................................................................. 6
4. Functional principle of the heating system ....................................................................... 7
5. Commissioning .................................................................................................................... 8
5.1 Checks prior to operation ...................................................................................................................... 8
5.2 Switching on ............................................................................................................................................ 8
6. Heating system control ....................................................................................................... 9
6.1 Operating elements on the boiler control panel / basic controller N4.2 ............................................ 9
6.2 The operating elements of the RS-OT heating regulator (optional) ................................................. 11
6.3 Operating elements of the TopTronic® T/N heating regulator (optional) .......................................... 13
7. Checklist in case of faults ................................................................................................. 15
8. Checking the water level ................................................................................................... 16
9. How to save energy! .......................................................................................................... 17
10. Hoval Service / sales programme ..................................................................................... 18