Viessmann Vitovalor 300-P Installation And Service Instructions For Contractors page 108

Codes
Coding level 2
(cont.)
Coding in the delivered condition
d5:0 With external heating program
changeover.
Observe settings of coding ad-
dresses "3A", "3b" and "3C" in
"General" group.
Operating program switches to
"constant central heating at re-
duced room temperature" or
"standby mode" depending on the
setting of the reduced set room
temperature.
d6:0 Heating circuit pump stays in con-
trol mode at "External blocking"
signal.
d7:0 Heating circuit pump stays in con-
trol mode at "External demand"
signal.
d8:0 With EA1 extension:
No operating program changeover
E1:1 Never adjust
E2:50 With remote control:
No display correction for the actual
room temperature (only for weath-
er-compensated control units)
E5:0 Never adjust
E6:... Only for heating systems without a
heating circuit with mixer:
Max. speed of internal variable
speed heating circuit pump as % of
max. speed in standard mode. Val-
ue is specified by boiler-specific
parameters (only for weather-com-
pensated control unit).
E7:30 Only for heating systems without a
heating circuit with mixer:
Min. speed of the internal variable
speed heating circuit pump:
108
Possible change
d5:1 Operating program switches to "con-
stant operation with standard room
temperature".
d6:1 Heating circuit pump stops on signal
"External blocking", depending on
coding addresses "3A", "3b" and
"3C".
d6:2 Heating circuit pump starts on signal
"External blocking", depending on
coding addresses "3A", "3b" and
"3C".
d7:1 Heating circuit pump stops on signal
"External demand", depending on
coding addresses "3A", "3b" and
"3C".
d7:2 Heating circuit pump stops on signal
"External demand", depending on
coding addresses "3A", "3b" and
"3C".
d8:1 Operating program changeover via
input DE1
d8:2 Operating program changeover via
input DE2
d8:3 Operating program changeover via
input DE3
E2:0 Display correction
to to
E2:49 Display correction
E2:51 Display correction +0.1 K
to to
E2:99 Display correction +4.9 K
E6:0 Maximum speed adjustable from 0
to to 100 %
E6:100
E7:0 Min. speed adjustable from 0 to
to 100 % of max. speed
E7:100
5 K
–
0.1 K
–