Viessmann Vitodens 200 Service Instructions Manual page 49

Code 2
(cont.)
Coding in the delivered condition
A3:2 Outside temperature
below 1 °C: Heating cir-
cuit pump "ON"
Outside temperature
above 3 °C: Heating cir-
cuit pump "OFF"
Note
When selecting a value
below 1 °C, there is a
risk of pipes outside the
thermal envelope of the
building being damaged
by frost. The standby
mode, in particular,
should be taken into
consideration, e.g. dur-
ing holidays.
!
Please note
When selecting a value below 1 °C, there is a risk of pipes outside the
thermal envelope of the building being damaged by frost.
The standby mode, in particular, should be taken into consideration, e.g.
during holidays.
Parameter
Address A3:...
-9
-8
-7
-6
-5
-4
-3
-2
-1
0
1
Possible change
A3:-9
to
A3:15
Heating circuit pump
"ON" at
-10 °C
-9 °C
-8 °C
-7 °C
-6 °C
-5 °C
-4 °C
-3 °C
-2 °C
-1 °C
0 °C
Coding
Heating circuit pump
"ON/OFF" (see the fol-
lowing table)
"OFF" at
-8 °C
-7 °C
-6 °C
-5 °C
-4 °C
-3 °C
-2 °C
-1 °C
0 °C
1 °C
2 °C
49