Viessmann VITOLIGNO 300-C Installation And Service Instructions Manual page 88

Coding
Coding 1
(continued)
Coding in the factory set condition
Solar
Differential DHW
6E:10
Maximum temperature DHW
6F:70
Differential buffer
70:20
Additional function, solar
71:0
Additional function runtime
72:0
88
Differential temperature of
10 K between solar and
DHW heating to start DHW
heating by the solar thermal
system
Max. DHW temperature limit
when heated by the solar
thermal system. DHW
is heated by the solar thermal
system up to this temperature.
If DHW is heated by a combi
tank, this temperature refers
to the first buffer tank
temperature sensor.
Differential temperature of
20K between solar and
heating water buffer tank to
start heating water buffer
tank by the solar thermal
system
Additional function of tank
heating by the solar thermal
system disabled. Code only
available when DHW heating
is connected to the boiler.
Circulation pump off.
Possible change
6E:1 Setting range of differential
to temperature in K
6E:50
6F:0 Setting range in °C
to
6F:100
70:1 Setting range in °C
to
70:50
71:0 Start time of the solar additional
to function. Solar auxiliary function:
71:23 Signal for starting the transfer pump
of the solar thermal system. This also
heats the lower area of the DHW tank to
the required temperature.
Time adjustable from 1:00 am (01:00 h)
("71:1") to 11:00 pm (23:00 h)
("71:23"). The time of the function must
be between the enable times for DHW
heating.
72:0 Runtime of solar de-stratification pump in
to min, adjustable from 1 min to 180 min.
72:180 Only available with code "71:1 - 23".
Vitoligno 300-C Installation/Service