Viessmann VITODENS 200-W Installation And Service Instructions Manual page 56

Code 1
Heating circuit 1, heating circuit 2, heating...
Coding
Coding in the delivered condition
Priority DHW heating
A2:2 Cylinder priority applicable to heat-
ing circuit pump and mixer
Economy function, outside temperature
A5:5 With heating circuit pump logic
function (economy control): Heat-
ing circuit pump "OFF" if outside
temperature (OT) is 1 K higher
than the set room temperature
(RT
set
OT
>
er-compensated control units)
Parameter address A5:...
1
2
3
4
5
6
7
to
15
Coding in the delivered condition
Extended economy function adjusted outside temperature
A6:36 Extended economy control disa-
bled (only for weather-compensa-
ted control units)
56
)
RT + 1 K (only for weath-
set
With heating circuit pump logic function: Heating circuit pump "OFF"
OT RT + 5 K
>
set
OT RT + 4 K
>
set
OT RT + 3 K
>
set
OT RT + 2 K
>
set
OT RT + 1 K
>
set
OT RT
>
set
OT RT - 1 K
>
set
OT RT - 9 K
>
set
(cont.)
Possible change
A2:0 Without cylinder priority for heating
circuit pump and mixer
A2:1 Cylinder priority only for mixers
A2:3 Reduced priority applicable to mixer
to (the heating circuit receives a re-
A2:15 duced amount of energy)
A5:0 Without heating circuit pump logic
function
A5:1 With heating circuit pump logic func-
to tion: Heating circuit pump "OFF" see
A5:15 following table
Possible change
A6:5 Extended economy control enabled,
to i.e. the burner and heating circuit
A6:35 pump will stop and the mixer will be
closed at a variable value, adjusta-
ble between 5 and 35
The basis for this is the adjusted
outside temperature. The adjusted
outside temperature is based on the
actual outside temperature and a
time constant, which takes the cool-
ing down of an average building into
consideration.
C plus 1 C.
° °