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5693 982 - 04
Vitotronic 300, GW2B Installation and Service
“Heating Circuit 1”, “Heating Circuit 2”, “Heating Circuit 3” Group
Code 1
Parameter address A5:...
With heating circuit pump logic function: Heating circuit pump “OFF”
1
AT > RT
set
+ 5 K
2
AT > RT
set
+ 4 K
3
AT > RT
set
+ 3 K
4
AT > RT
set
+ 2 K
5
AT > RT
set
+ 1 K
6
AT > RT
set
7
to
15
AT > RT
set
- 1 K
AT > RT
set
- 9 K
Coding
Coding in the factory set condition
Possible change
Priority DHW heating
A2:2
DHW tank priority applicable to heating
circuit pump and mixing valve.
A2:0
Without DHW tank priority applicable
to heating circuit pump and mixing valve.
A2:1
DHW tank priority applies only to the mixing
valves.
A2:3
to
A2:15
Modulating priority applied to mixing valve,
i.e. the heating circuit receives a reduced
amount of heat.
Economy function outside temperature
A5:5
With heating circuit pump logic function
(economy circuit):
Heating circuit pump “OFF” when the
outside temperature (AT) is 1 K higher
than the set room temperature (RT
set
)
AT > RT
set
+ 1 K
A5:0
Without heating circuit pump logic function.
A5:1
to
A5:15
With heating circuit pump logic function:
Heating circuit pump “OFF”; see the
following table.
