Viessmann VITODENS 200-W Service Instructions Manual page 75

Heating circuit 1, heating circuit 2, heating...
Coding in the delivered condition
A4:0 With frost protection (only
for weather-compensa-
ted control units)
A5:5 With heating circuit pump
logic function (economy
circuit): 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
)
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
A4:1 No frost protection; this set-
ting is only possible if code
"A3:-9" has been selected.
Note
See "Please note" regard-
ing coding address "A3"
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 the
following table
Code 2
(cont.)
75