Viessmann VITOPEND - Page 7

7
ë flashes and "Service" is displayed...................................................................
48
"Controls locked out" is displayed........................................................................ 48
"External hook-up" is displayed............................................................................ 48
"External program" is displayed........................................................................... 48
Repair work
Cleaning............................................................................................................... 49
Inspection and maintenance................................................................................ 49
■ Boiler................................................................................................................. 49
■ DHW cylinder (if installed)................................................................................. 49
■ Safety valve (DHW cylinder)............................................................................. 50
■ Potable water filter (if installed)......................................................................... 50
Damaged connecting cables................................................................................ 50
Ordering fuel oil
Fuel oil quality...................................................................................................... 51
Fuel oil additives................................................................................................... 51
Combustion improvers......................................................................................... 51
Biofuels................................................................................................................. 51
Appendix
Overview of extended menu................................................................................. 53
Calling up options under "Information"................................................................. 54
Terminology.......................................................................................................... 55
Keyword index.................................................................................................... 61
Index
Index
(cont.)
5592 682 GB