Vitodens 200-W B2HA 112, 150 Service
5683 710 - 09
62
Coding 2
Heating Circuit 1, 2 and 3
Coding
Coding in the factory setting
Possible change
A0:0
Without remote control
A0:1
With Vitotrol 200A (automatic
recognition).
A0:2
With Vitotrol 300A or Vitohome
300 (automatic recognition).
A1:0
All possible settings at the
remote control can be accessed
A1:1
Only party mode can be set at the
remote control (only for Vitotrol
200A).
A2:2
DHW tank priority applicable to
heating circuit pump and mixing
valve
A2:0
Without DHW tank priority applied
to heating circuit pump and mixing
valve.
A2:1
DHW tank 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
Outside temperature below
34°F (1°C): Heating circuit pump
“ON”
Outside temperature above
37°F (3°C): Heating circuit pump
“OFF”
A3:-9
to
A3:15
Heating circuit pump “ON/OFF”
(see following table).
Note:
When selecting a value below 1° C, there is a risk of pipes outside the thermal envelope of the building freezing
up. The standby mode in particular should be taken into consideration, e.g. during holidays.
Parameter address A3:...
Heating circuit pump
“ON”
“OFF”
-9
14°F (-10°C)
17.6°F (-8°C)
-8
15.8°F (-9°C)
19.4°F (-7°C)
-7
17.6°F (-8°C)
21.2°F (-6°C)
-6
19.4°F (-7°C)
23°F (-5°C)
-5
21.2°F (-6°C)
24.8°F (-4°C)
-4
23°F (-5°C)
26.6°F (-3°C)
-3
24.8°F (-4°C)
28.4°F (-2°C)
-2
26.6°F (-3°C)
32.2°F (-1°C)
-1
28.4°F (-2°C)
32°F (0°C)
0
32.2°F (-1°C)
33.8°F (1°C)
1
32°F (0°C)
35.6°F (2°C)
2
to
15
33.8 to 57.2°F
(1 to 14°C)
37.4 to 60.8°F
(3 to 16°C)
Select “Heating circuit ...”