Viessmann VITOLIGNO 300-C Installation And Service Instructions Manual page 112

Codes
Code 1
(cont.)
Coding in the delivered condition
Additional function, solar
71:0 Additional function of transfer
pump disabled.
Code available if the output of the
HKK PCB is available.
Additional function, runtime
72:0 Circulation pump "OFF"
Solar circuit pump maximum speed
73:100 Maximum permissible speed of so-
lar circuit pump out of 100 % of
maximum possible pump speed
Solar circuit pump minimum speed
74:30 Minimum permissible speed of so-
lar circuit pump out of 30 % of
maximum possible pump speed
Nominal flow rate, collector circuit
75:0.0 No flow rate
Solar collector maximum temperature
76:140 Maximum temperature in the solar
collector. The Solar group is shut
down if the max. temperature is
exceeded.
When the temperature falls below
the set max. temperature by 10 K,
the Solar group restarts.
Flush collector sensor
77:0 Flush time in seconds
Note
Flushing is activated in regular in-
tervals for the selected flush time.
Only enabled if collector tempera-
ture
≥
112
outside temperature
Possible change
71:0 Start time for the solar additional
to function.
71:23 Solar additional function: Signal for
starting the transfer pump of the so-
lar thermal system. This also heats
the lower area of the DHW cylinder
to the required temperature.
Time adjustable from 01:00 h
("71:1") to 23:00 h ("71:23").
The time of the function must be be-
tween the enable times for DHW
heating.
72:0 Runtime of the solar transfer pump
to Adjustable value in minutes
72:180 Only active in conjunction with code
"71:1 - 23".
73:10 Setting in %
to
73:100
74:10 Adjustable value in %
to
74:100
75:0.1 Nominal flow rate of the collector cir-
to cuit
75:50.0 Adjustable value in l/min
76:50 Adjustable value in °C
to
76:150
77:1 Setting range in seconds
to
77:120