Technical data

Vitodens 200-W B2HA 19, 28, 35 Service
61
5683 702 - 07
Coding 2
Heating Circuit 1, 2 and 3
Select “Heating circuit ...”
Note: When selecting a value below 33.8° F (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)
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
NOT USED
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).