Viessmann Vitodens 222-F B2TA Installation And Service Instructions Manual page 82

Code 1
"Heating circuit ..."/group 5
Coding
Coding in the delivered condition
Economy function outside temperature
A5:5 With heating circuit pump
logic function (economy
control): heating circuit
pump "OFF" when the
outside temperature (AT)
is 1 K higher than the set
room temperature (RT
AT > RT
weather-compensated
control units)
Parameter address
A5:...
1
2
3
4
5
6
7
to
15
82
(cont.)
)
set
+ 1 K (only for
set
With heating circuit pump logic function: Heating cir-
cuit pump "OFF"
AT > RT + 5 K
set
AT > RT + 4 K
set
AT > RT + 3 K
set
AT > RT + 2 K
set
AT > RT + 1 K
set
AT > RT
set
AT > RT – 1 K
set
AT > RT – 9 K
set
Possible change
A5:0 Without heating circuit
pump logic function
A5:1 With heating circuit pump
to logic function: Heating cir-
A5:15 cuit pump "OFF"; see fol-
lowing table