Viessmann FB2B Installation And Service Instructions Manual page 74

Code 1
Heating circuit 1, heating circuit 2, heating...
Coding in the delivered condition
Flow temperature minimum limit
C5:20 Electronic minimum flow
temperature limit 20 °C
Flow temperature maximum limit
C6:74 Electronic maximum flow
temperature limit set to
74 °C
Heating program - changeover
d5:0 External heating program
changeover changes to
"Constant operation with
reduced room tempera-
ture" or "Standby mode".
Ext. heating program changeover to heating circuit
d8:0 No heating program
changeover via extension
EA1
Screed function
F1:0 Screed function disa-
bled.
74
(cont.)
Possible change
C5:1 Minimum limit adjustable
to from 1 to 127 °C (limited by
C5:127 boiler-specific parameters)
C6:10 Maximum limit adjustable
to from 10 to 127 °C (limited
C6:127 by boiler-specific parame-
ters)
d5:1 The external heating pro-
gram changeover changes
to "Constant operation with
standard room tempera-
ture" (independent of cod-
ing address 3A, 3b and
3C)
d8:1 Heating program change-
over via input DE1 at exten-
sion EA1
d8:2 Heating program change-
over via input DE2 at exten-
sion EA1
d8:3 Heating program change-
over via input DE3 at exten-
sion EA1
F1:1 Screed drying function
to adjustable in accordance
F1:6 with 6 optional tempera-
ture/time profiles (see
page 137)
F1:15 Constant flow temperature
20 °C