Viessmann B2TF Installation And Service Instructions Manual page 60

Gas condensing storage combi boiler with 7 inch colour touchscreen
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System configuration (parameters)
General
(cont.)
897.0 "Screed drying"
Setting
Not active
Diagram 1
Diagram 2
Diagram 3
Diagram 4
Diagram 5
Diagram 6
912.0 "Automatic summer/wintertime changeover"
Setting
No
Yes
912.1 "Earliest day of changeover from winter to summertime"
Setting
912.2 "Month of changeover from winter to summertime"
Setting
912.3 "Earliest day of changeover from summer to wintertime"
Setting
912.4 "Month of changeover from summer to wintertime"
Setting
1098.4 "Gas volume correction factor"
Setting
60
Explanations
0
Screed drying can be set in accordance with selecta-
ble temperature/time profiles. For individual profile
curves, see chapter "Function description".
2
3
4
5
6
7
Explanations
0
Automatic changeover disabled
1
Automatic changeover enabled
Explanations
25
Changeover from 02:00 h to 03:00 h occurs on the
Sunday after or on this set date.
1 to 31
Day of changeover adjustable from 1st to 31st of the
month
Explanations
3
Month of changeover: March
1 to 12
Month of changeover adjustable from January to De-
cember
Explanations
25
Changeover from 03:00 h to 02:00 h occurs on the
Sunday after or on this set date.
1 to 31
Day of changeover adjustable from 1st to 31st of the
month
Explanations
10
Month of changeover: October
1 to 12
Month of changeover adjustable from January to De-
cember
Explanations
Value is provided on the gas supplier's bill.
Used for gas consumption data.
1.0000
0.7000 to
Gas volume correction factor adjustable from 0.7000
1.0000
to 1.0000 in increments of 0.0001.

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