Viessmann VITODENS 200-W Service Instructions Manual page 48

Codes
Code 2
(cont.)
Coding in the delivered condition
9F:8 Differential temperature
8 K; only in conjunction
with the mixer circuit (only
for weather-compensa-
ted control units)
Boiler circuit, mixer circuit
A0:0 Without remote control
(only for weather-com-
pensated control units)
A3:2 Outside temperature
below 1 °C: Heating cir-
cuit pump "ON"
Outside temperature
above 3 °C: Heating cir-
cuit pump "OFF"
!
Please note
If a value below 1 °C is selected, there is a risk that pipes outside the thermal
insulation of the house could freeze up.
The standby mode, in particular, should be taken into consideration, e.g. dur-
ing holidays.
Parameter
Address A3:...
-9
-8
-7
-6
-5
-4
-3
-2
-1
0
1
2
to
15
48
Possible change
9F:0
to
9F:40
A0:1
A0:2
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
1 °C
to
14 °C
Differential temperature
adjustable from 0 to 40 K
With Vitotrol 200 (auto-
matic recognition)
With Vitotrol 300 (auto-
matic recognition)
Heating circuit pump "ON/
OFF" (see the following
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
3 °C
to
16 °C