Heating Circuit 1, Heating Circuit 2, Heating Circuit 3; Coding - Viessmann Vitoladens 300-W Installation And Service Instructions Manual

Code 2
Solar
(cont.)
Coding in the delivered condition
22:8 Start temperature differential for
central heating backup 8 K
Code "20:4" must be set.
23:4 Stop temperature differential for
central heating backup 4 K
Code "20:4" must be set.
24:40 Start temperature for thermostat
function 40 °C
Code "20:5" or "20:6" must be set.
25:50 Stop temperature for thermostat
function 50 °C
Code "20:5" or "20:6" must be set.
26:1 Priority for DHW cylinder 1 with
cyclical heating
Code "20:9" must be set.
27:15 Cyclical heating time 15 min.
Once the DHW cylinder with priori-
ty is heated up, the DHW cylinder
without priority is heated for a max-
imum duration equal to the set cy-
clical heating time.
28:3 Cyclical pause time 3 min.
After the set cyclical heating time
for the DHW cylinder without priori-
ty has expired, the rise in collector
temperature is captured during the
cyclical pause time.

Heating circuit 1, heating circuit 2, heating circuit 3

Coding

Coding in the delivered condition
A0:0 Without remote control
60
Possible change
20:7 Solar heating via external heat ex-
changer without additional tempera-
ture sensor
20:8 Solar heating via external heat ex-
changer with additional temperature
sensor
20:9 Solar heating of 2 DHW cylinders
22:2 Start temperature differential adjust-
to able from 2 to 30 K.
22:30
23:2 Stop temperature differential adjust-
to able from 1 to 29 K
23:30
24:0 Start temperature for thermostat
to function adjustable from 0 to 100 K
24:100
25:0 Stop temperature for thermostat
to function adjustable from 0 to 100 K
25:100
26:0 Priority for DHW cylinder 1 without
cyclical heating
26:2 Priority for DHW cylinder 2 without
cyclical heating
26:3 Priority for DHW cylinder 2 with cy-
clical heating
26:4 Cyclical heating without priority for
any of the DHW cylinders
27:5 The cyclical heating time is adjusta-
to ble from 5 to 60 min.
27:60
28:1 Cyclical pause time adjustable from
to 1 to 60 min.
28:60
Possible change
A0:1 With Vitotrol 200/200-A/200-RF (au-
tomatic recognition)
A0:2 With Vitotrol 300/300-A/300-RF or
Vitocomfort 200 (automatic recogni-
tion)