Viessmann VITODENS - Page 7

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The DHW is too hot ............................................................................... 50
"Fault" is displayed ............................................................................... 50
ë and "Service" are displayed ............................................................ 50
"Operation disabled" is displayed ....................................................... 50
"External hook-up" is displayed .......................................................... 50
"External program" is displayed .......................................................... 50
"Check filter" is displayed .................................................................... 50
Doors/windows are difficult to open ....................................................... 51
Doors/windows bang when opened ....................................................... 51
12. Maintenance Cleaning ................................................................................................. 52
Inspection and maintenance .................................................................. 52
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Appliance ............................................................................................ 52
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DHW cylinder (if installed) .................................................................. 52
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Safety valve (DHW cylinder) ............................................................... 52
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Potable water filter (if installed) .......................................................... 52
Cleaning the mechanical ventilation system .......................................... 53
Cleaning or replacing filters ................................................................... 53
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Filter in the ventilation unit .................................................................. 53
Damaged cables / lines ......................................................................... 58
13. Appendix Overview of extended menu .................................................................. 59
Data call-up options under "Information" ............................................. 59
Heating terminology ............................................................................... 61
Mechanical ventilation terminology ........................................................ 63
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Mechanical ventilation ........................................................................ 63
Information on disposal .......................................................................... 64
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Disposal of packaging ........................................................................ 64
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Final decommissioning and disposal of the heating system ............... 65
14. Keyword index ................................................................................................................ 66
Index
Index (cont.)
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