Vitotrol 300 A - Viessmann PYROMAT ECO Technical Manual

Control unit
(cont.)
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.
3
1 4
8

Vitotrol 300 A

Part no. Z008 342
KM BUS subscriber.
■ Displays:
– Room temperature
– Outside temperature
– Operating program
– Operating condition
■ 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 captured 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.).
18
Specification
Power supply via KM BUS
Power consumption
Safety category
IP rating
Permissible ambient temperature
– during operation
– during storage and transportation
Setting range of the set room tempera-
ture for standard mode
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.
1 5
5
0.2 W
III
IP 30 to EN 60529
Ensure through design/in-
stallation
0 to +40 °C
−20 to +65 °C
3 to 37 °C
PYROMAT ECO