89
Coding in the delivered condition
Possible change
C5:20
Electronic minimum flow
temperature limit 20 °C
(only for weather-com-
pensated control units)
C5:1
to
C5:127
Minimum limit adjustable
from 1 to 127 °C (limited by
boiler-specific parameters)
C6:74
Electronic maximum flow
temperature limited to
74 °C (only for weather-
compensated control
units)
C6:10
to
C6:127
Maximum limit adjustable
from 10 to 127 °C (limited
by boiler-specific parame-
ters)
d3:14
Heating curve slope =
1.4
d3:2
to
d3:35
Heating curve slope adjust-
able from 0.2 to 3.5 (see
page 53)
d4:0
Heating curve level = 0
d4:–13
to
d4:40
Heating curve level adjust-
able from –13 to 40 (see
page 53)
d5:0
The external heating pro-
gram changeover
changes the heating pro-
gram to "Constant opera-
tion with reduced room
temperature" or "Standby
mode" (only for weather-
compensated control
units)
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)
d6:0
Heating circuit pump
stays in control mode at
signal "External block-
ing"
d6:1
Heating circuit pump stops
at signal "External block-
ing" (subject to coding
addresses 3A, 3b and 3C)
d6:2
Heating circuit pump starts
at signal "External block-
ing" (subject to coding
addresses 3A, 3b and 3C)
d7:0
Heating circuit pump
stays in control mode at
signal "External
demand"
d7:1
Heating circuit pump stops
at signal "External
demand" (subject to coding
addresses 3A, 3b and 3C)
d7:2
Heating circuit pump starts
at signal "External block-
ing" (subject to coding
addresses 3A, 3b and 3C)
Code 2
Heating circuit 1, heating circuit 2, heating…
(cont.)
5457 552 GB
Service