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Viessmann Vitovalor PT2 Manual

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11. Switching on and off Switching off the system ........................................................................ 47
■Switching off power generation by the fuel cell ................................... 47
■Shutting down heat generation with frost protection monitoring
("Standby mode") ............................................................................. 47
■Switching off heat generation without frost protection monitoring ...... 47
■Interrupting the external power supply to the system ......................... 48
Switching on the system ........................................................................ 49
12. What to do if... Rooms are too cold ................................................................................ 50
Rooms are too hot ................................................................................. 50
There is no hot water ............................................................................. 51
The DHW is too hot ............................................................................... 51
No power generation ............................................................................. 51
"Fault" is displayed ............................................................................... 52
"Service" and ë are displayed ............................................................ 52
"Panel locked" is displayed .................................................................. 52
"External hook-up" is displayed .......................................................... 52
System characteristics during a mains fault .......................................... 52
13. Maintenance Cleaning ................................................................................................. 53
Inspection and maintenance .................................................................. 53
■Appliance ............................................................................................ 53
■DHW cylinder ...................................................................................... 53
■Safety valve (DHW cylinder) ............................................................... 53
■Potable water filter (if installed) .......................................................... 53
Damaged cables / lines ......................................................................... 53
14. Appendix Overview of "Main menu" ..................................................................... 54
Terminology ........................................................................................... 59
■Standby mode .................................................................................... 59
■Setback mode (reduced heating mode) ............................................. 59
■System version ................................................................................... 59
■Operating program ............................................................................. 59
■Operating status ................................................................................. 59
■Fuel cell .............................................................................................. 60
■Self-consumption ................................................................................ 60
■Energy manager ................................................................................. 60
■Mixer extension kit .............................................................................. 61
■Screed drying ..................................................................................... 61
■Underfloor heating .............................................................................. 61
■Gas condensing module ..................................................................... 62
■Heating mode ..................................................................................... 62
■Heating curve ..................................................................................... 62
■Heating circuit ..................................................................................... 64
■Heating circuit pump ........................................................................... 64
■Low power radio ................................................................................. 64
■Micro CHP unit ................................................................................... 65
■Mixer ................................................................................................... 65
■Night setback ...................................................................................... 65
■Mains monitor (ENS) .......................................................................... 65
■Economical operation ......................................................................... 65
■Ecological operation ........................................................................... 65
■Open flue operation ............................................................................ 65
■Room sealed operation ...................................................................... 65
■Room temperature .............................................................................. 66
■Return temperature ............................................................................ 66
■Safety valve ........................................................................................ 66
■Set temperature .................................................................................. 66
■Cylinder primary pump ....................................................................... 66
Index
Index
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