Heating system types
13
Heating system types for condensing boilers
(continued)
Please note:
This circuit diagram represents a
recommendation only. It is the
responsibility of the customer and/or
the heating contractor to check that
this recommendation is complete and
fully functional. Three-phase equipment
must be connected via additional
power contactors.
The Vitocrossal 300 is operated with
modulating boiler water temperature
by means of the outdoor re-set boiler
control unit. Viessmann modulating
burner is operated through Vitotronic
control.
The boiler water temperature which
is established in the heating mode is
higher than the maximum heating
circuit supply temperature by an
adjustable difference.
Available system accessories
Vitotrol remote control
Flue gas temperature sensor
Coding
system type
Change required
Automatic change
00: 1
If no system circuit A1 is connected, set
coding ”00: 3”, ”00: 4”, ”00: 7” or ”00: 8”
(see page 114)
The system type is recognized automatically
when the sensors are connected
02: 1
Set coding ”02: 2” for operation with
modulating burner
––
0d: 1
Set coding ”0d: 0”
––
5285
941
-
0
1
