Viessmann Vitoladens 300-C Installation And Service Instructions Manual page 71

Code 2
(cont.)
Coding in the delivered condition
0F:70 Solar circuit flow rate at max.
pump speed 7 l/min.
10:0 Target temperature control switch-
ed off (see coding address "11").
11:50 Set solar DHW temperature 50 °C.
Target temperature control
■
switched on (code "10:1"):
Temperature at which the solar
heated water is to be stratified
into the DHW cylinder.
If code "20:9" (heating of 2 DHW
■
cylinders) is set:
When the set DHW temperature
is achieved in one DHW cylinder,
the second DHW cylinder is
heated.
12:10 Minimum collector temperature
(minimum start temperature for the
solar circuit pump) 10 °C.
20:0 No extended control function ac-
tive.
22:8 Start temperature differential with
central heating backup (code
"20:4" must be set) 8 K.
23:4 Stop temperature differential with
central heating backup (code
"20:4" must be set) 4 K.
24:40 Start temperature for thermostat
function (code "20:5" or "20:6"
must be selected) 40 °C.
25:50 Stop temperature for thermostat
function (code "20:5" or "20:6"
must be selected) 50 °C.
26:1 Priority for DHW cylinder 1 with
cyclical heating.
(Code "20:9" must be set).
Possible change
0F:1 Flow rate adjustable from 0.1 to
to 25.5 l/min.
0F:255 1 step
10:1 Target temperature control switched
on.
11:10 The set solar DHW temperature is
to adjustable from 10 to 90 °C.
11:90
12:0 No minimum limit active.
12:1 Minimum collector temperature ad-
to justable from 1 to 90 °C.
12:90
20:1 Additional function for DHW heating.
20:2 Differential temperature control 2.
20:3 Differential temperature control 2
and auxiliary function.
20:4 Differential temperature control 2 for
central heating backup.
20:5 Thermostat function.
20:6 Thermostat function and auxiliary
function.
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 Shutdown temperature differential
to adjustable 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.
Codes
≙
0.1 l/min
71