Viessmann Vitodens 333 Service Instructions Manual page 48

Coding
Code 2
(cont.)
Coding in the delivered condition
7b:1 Without LON communi-
cation module (only for
weather-compensated
control units)
7F:1 Detached house (only
for weather-compen-
sated control units)
80:1 A fault message is dis-
played, providing a fault
is active for at least 5 s
81:1 Automatic summer/win-
ter time changeover
88:0 Temperature displayed
in °C (Celsius)
8A:175 Do not adjust
90:128 Time constant for calcu-
lating the adjusted out-
side temperature 21.3 h
48
Possible change
7b:0 Do not send time via LON
7F:0 Apartment block
As option, separate ad-
justment of holiday pro-
gram and time program
for DHW heating
80:0 Immediate fault message
80:2 The minimum fault dura-
to tion before a fault mes-
80:199 sage is issued is
adjustable from 10 s to
995 s; 1 step = 5 s
81:0 Manual summer/winter
time changeover
81:2 Use of the radio clock re-
ceiver (automatic recog-
nition)
81:3 Accept time via LON
88:1 Temperature displayed in
°F (Fahrenheit)
90:1 Fast (low values) or slow
to (high values) matching of
90:199 the flow temperature,
subject to set value when
the outside temperature
changes;
1 step = 10 min