Coding
46
Coding Level 2
(continued)
Overview of coding addresses
(continued)
Coding (factory default setting)
Possible change
General
9F:8
Differential temperature 8 K; only in
conjunction with the mixing valve circuit
9F:0
to
9F:40
Differential temperature adjustable from 0 to
40 K (0 to 72°F)
Boiler circuit, mixing valve circuit
A0:0
Without remote control
A0:1
With Vitotrol 200 (automatic recognition)
A0:0
Without remote control
A0:2
With Vitotrol 300 (automatic recognition)
DHW priority (heating circuit without mixing valve, A1)
A2:2
DHW priority to heating circuit pump
A2:0
Without DHW priority to heating circuit pump
DHW priority (heating circuit with mixing valve, M2)
A2:2
DHW priority applicable to heating circuit
pump and mixing valve
A2:0
Without DHW priority applicable to heating
circuit pump and mixing valve
pump and mixing valve
A2:1
DHW priority only applicable to mixing valve
A2:3
to
A2:15
Reduced priority applied to mixing valve (the
heating circuit receives a reduced amount of
energy)
A3:2
Outdoor temperature below 34°F / 1°C:
Heating circuit pump ”ON”
Outdoor temperature above 37°F / 3°C:
Heating circuit pump ”OFF”
A3:-9
to
A3:15
Heating circuit pump ”ON/OFF” (see the
following table)
Parameter
coding address
Heating circuit pump
coding address
A3:...
”ON” at
”OFF” at
-9
14°F / -10°C
18°F / -8°C
-8
16°F / -9°C
20°F / -7°C
-7
18°F / -8°C
21°F / -6°C
-6
20°F / -7°C
23°F / -5°C
-5
21°F / -6°C
25°F / -4°C
-4
23°F / -5°C
27°F / -3°C
-3
25°F / -4°C
28°F / -2°C
-2
27°F / -3°C
30°F / -1°C
-1
28°F / -2°C
32°F / 0°C
0
30°F / -1°C
34°F / 1°C
1
32°F / 0°C
36°F / 2°C
2 to 15
34 to 57°F /
1 to 14°C
37 to 61°F /
3 to 16°C
5
4
4
3
2
0
7
v
1
.5
When selecting a value below 34°F /
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.
WARNING
