Note
The set room temperature for reduced mode (night temperature)
is set at the control unit.
– Operating program
■ Party and economy mode can be enabled via keys
■ Integral room temperature sensor for room temperature hook-up
(only for one heating circuit with mixer)
Installation site:
■ Weather-compensated mode:
Installation anywhere in the building.
■ Room temperature hook-up:
The integral room temperature sensor captures the actual room
temperature and corrects the flow temperature if necessary.
The captured room temperature is dependent on the installation site:
– Main living room on an internal wall opposite radiators.
– Not on shelves or in recesses.
– Never install immediately by a door or heat source (e.g. direct
sunlight, fireplace, TV set, etc.).
Connection:
■ Two-core cable, length max. 50 m (even if connecting several
remote control units).
■ Never route this cable immediately next to 230/400 V cables.
■ LV plug as standard delivery.
148
20,5
97
Specification
Power supply via KM BUS
Power consumption
0.2 W
Safety category
III
IP rating
IP 30 to EN 60529
Ensure through design/in-
stallation
Permissible ambient temperature
– during operation
0 to +40 °C
– during storage and transportation
−20 to +65 °C
Setting range of the set room tempera-
ture for standard mode
3 to 37 °C
Vitotrol 300A
Part no. Z008 342
KM BUS subscriber.
■ Indicators:
– Room temperature
– Outside temperature
– Operating program
– Operating condition
– Graphic illustration of the solar energy yield in conjunction with the
solar control module, type SM1
■ Settings:
– Set room temperature for standard mode (day temperature) and
reduced mode (night temperature)
– Set DHW temperature
– Operating program, switching times for heating circuits, DHW
heating and DHW circulation pump plus further settings via plain
text menu on the display
■ Party and economy mode can be enabled via the menu
■ Integral room temperature sensor for room temperature hook-up
(only for one heating circuit with mixer)
Installation location:
■ Weather-compensated mode:
Installation anywhere in the building.
■ Room temperature hook-up:
The integral room temperature sensor captures the actual room
temperature and effects any necessary correction of the flow tem-
perature.
The recorded room temperature depends on the installation site:
– Main living room on an internal wall opposite radiators.
– Not on shelves or in recesses.
– Never in the immediate vicinity of doors or close to heat sources
(e.g. direct sunlight, fireplace, TV set, etc.).
Connection:
■ 2-core lead, length max. 50 m (even if connecting several remote
control units).
■ Never route this cable immediately next to 230/400 V cables.
■ LV plug included in standard delivery.
20,5
155
97
Specification
Power supply via KM BUS
Power consumption
0.5 W
Safety category
III
IP rating
IP 30 to EN 60529
Ensure through design/in-
stallation
Permissible ambient temperature
– During operation
0 to +40 °C
– During storage and transport
−20 to +65 °C
Setting range for set room temperature
3 to 37 °C
Control units
(cont.)
70
VIESMANN
Gas condensing boilers
9
5822 449 GB