Viessmann VITODENS 242-F Installation And Service Instructions Manual page 116

Code 2
"Heating circuit ..."
Coding in the delivered condition
d8:0 With extension EA1:
No operating program
changeover.
E1:1 Do not adjust
E2:50 With remote control:
No display correction for
the actual room tempera-
ture (only for weather-
compensated control
units)
E5:0 Do not adjust
E6:... Only for heating systems
without a heating circuit
with mixer:
Maximum speed of the in-
ternal variable speed
heating circuit pump in %
of the max. speed in
standard mode. Value is
specified by boiler-specif-
ic parameters (only for
weather-compensated
control units).
E7:30 Only for heating systems
without a heating circuit
with mixer:
Minimum speed of the in-
ternal variable speed
heating circuit pump:
30 % of the max. speed
(only for weather-com-
pensated control units)
116
(cont.)
Possible change
d7:2
d8:1
d8:2
d8:3
E2:0
to
E2:49
E2:51
to
E2:99
E6:0
to
E6:100
E7:0
to
E7:100
At signal "External de-
mand" heating circuit pump
starts (subject to coding
addresses "3A", "3b" and
"3C")
Operating program
changeover via input DE1.
Operating program
changeover via input DE2.
Operating program
changeover via input DE3.
Display correction –5 K
to
Display correction –0.1 K
Display correction +0.1 K
to
Display correction +4.9 K
Maximum speed adjusta-
ble from 0 to 100 %
Minimum speed adjustable
from 0 to 100 % of the max-
imum speed