Viessmann Vitotronic 200 Operating Instructions Manual page 84

Appendix
Overview of extended menu
"Settings"
"Time / Date"
"Language"
"Contrast"
"Brightness"
"Temperature unit"
"Name for heating circuit"
"Standard menu"
"Standard setting"
"Manual mode"
"Test mode"
Terminology
Defrosting
Ice can form on the evaporator during the operation of
air/water heat pumps.
To remove this ice, the evaporator is automatically
defrosted.
84
(cont.)
"Control"
"Screen saver"
"System"
"Compressor 1"
"Compressor 2"
"Heat management"
"DHW"
"Solar"
"Electr booster heater"
"Internal hydraulics"
"Buffer cylinder"
"Heating circuit 1"
"Heating circuit 2"
"Heating circuit 3"
"Cooling"
"Ventilation"
"Photovoltaics"
"Smart Grid"
"Primary source"
"Primary source 2"
"Time"
"Communication"
"Control"
During defrosting, the heat pump is not available for
central heating or central cooling.
Water vapour can rise from the heat pump during
defrosting.