Viessmann Vitodens 333 Service Instructions Manual page 53

Code 2
(cont.)
Coding in the delivered condition
9F:8 Differential temperature
8 K; only in conjunction
with the mixer circuit
(only for weather com-
pensated control units)
Heating circuit A1/M2
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
circuit pump "OFF"
!
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.
Parameters
Address A3:...
9
8
7
6
5
4
3
2
1
0
1
2
to
15
Possible change
9F:0
to
9F:40
A0:1
A0:2
A3: 9
to
A3:15
Heating circuit pump
"ON"
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
Coding
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 fol-
lowing table)
"OFF"
8 °C
7 °C
6 °C
5 °C
4 °C
3 °C
2 °C
1 °C
0 °C
1 °C
2 °C
3 °C
16 °C
53