2 3064812_201804
Tableofcontents
1. Safety instructions ................................................................................... 3
2. Checking fault messages ........................................................................6
3. CGB-2 appliance description ...................................................................7
4. CGB-2K appliance description ................................................................8
5. CGW-2 appliance description ..................................................................9
6. CGS-2L appliance description ...............................................................10
7. CGS-2R appliance description .............................................................. 11
8. Maintenance equipment
Maintenance spare parts set ................................................................. 12
9. Preparing for inspection/
maintenance ..........................................................................................13
10. Opening the combustion chamber ........................................................14
11. Checking the burner .............................................................................. 15
12. Checking the ionisation and ignition electrodes ....................................17
13. Cleaning the heat exchanger ................................................................18
14. Assembling the heat exchanger ............................................................ 20
15. Checking DHW heating ......................................................................... 22
16. Checking the combustion parameters ...................................................23
17. HG control parameters .......................................................................... 24
18 Maintenance Report .............................................................................. 25
19 Notes ..................................................................................................... 26