Viessmann Vitodens 300 Service Instructions Manual page 51

Code 2
(cont.)
Coding in Function mode
the as
delivered
condition
Address:
value
80:1 With 5 seconds' time
delay for fault message;
message will be issued,
if a fault persists for at
least 5 seconds
81:1 Automatic summer/win-
ter changeover
88 :0 Temperature display in
Celsius
90:128 Time constant for calcu-
lating the adjusted out-
side temperature
21.3 hours
91:0 * 1 No external operating
mode changeover via
external extension
95:0 Without Vitocom 100
communication inter-
face
*1
Only for weather-compensated control units.
Coding Possible change
change
Address:
value
80:0 Without time delay
80:2 Time delay adjustable
to from 10 to 995; 1 step =
80:199 5 s
81:0 Manual summer/winter
changeover
81:2 The application of the
radio clock module will be
recognised automatically
81:3 Accept time via LON
88 :1 Temperature display in
Fahrenheit
90:0 Fast (low values) or slow
to (high values) matching of
90:199 flow temperature subject
to set value if the outside
temperature changes;
1 step = 10 min
91:1 External heating program
changeover applies to
heating circuit without
mixer
91:2 External heating program
changeover applies to
heating circuit with mixer
91:3 External heating program
changeover applies to
heating circuit without
mixer and heating circuit
with mixer
95:1 With Vitocom 100 com-
munication interface;
automatic recognition
Coding
51