Viessmann Vitodens 222-F Installation And Service Instructions For Contractors page 82

Parameter level 2
Heating circuit 1, heating circuit 2, heating...
"Pump start heating circuit pump A1, standby mode"
Setting
OFF
... ON
Constantly ON
"Outside temperature limit for cancelling reduced set room temperature"
Setting
-5 °C
... °C
Function disabled
"Outside temperature limit for raising the reduced set room temperature to the standard set room tem-
perature"
Setting
-14 °C
... °C
"Raising the set boiler water or flow temperature when switching from operation with reduced room tem-
perature to operation with standard room temperature"
Setting
20 %
... %
"Duration for raising the set boiler water or flow temperature"
Setting
60 min
... min
82
(cont.)
Explanations
Only if control unit has been changed to constant tem-
perature mode.
F7:0 In "Standby mode", the internal circulation pump is
permanently off
F7:1 to Activation of the internal circulation pump in "Standby
F7:24 mode" is adjustable from 1 to 24 times per day for 10
min. each time.
F7:25 In "Standby mode", the internal circulation pump is
permanently on
Explanations
F8:-5 See chapter "Function description"
Observe parameter "A3".
F8:+10 to Temperature limit adjustable from +10 to -60°C
F8:-60
F8:-61
Explanations
F9:-14 See chapter "Function description"
F9:+10 to Temperature limit adjustable from +10 to -60°C
F9:-60
Explanations
FA:20 See chapter "Function description"
FA:0 to Temperature rise adjustable from 0 to 50 %
FA:50
Explanations
FB:60 See parameter "FA"
See chapter "Function description"
FB:0 to Temperature rise adjustable from 0 to 240 min
FB:240