Viessmann VITOCROSSAL 300 Technical Data Manual page 15

Vitocrossal 300 CU3A 26 to 57 Technical Data
Optional Accessories
Vitotrol 300A
One Vitotrol 300A can be used for every heating circuit
in a heating system. The Vitotrol 300A can regulate up
to three heating circuits. Up to two remote controls may
be connected to the control unit.
KM BUS Participant
The Vitotrol 300A remote control regulates the required
set room temperature for one heating circuit in standard
and reduced mode, the heating program and the switching
times for central heating, DHW heating and the DHW
recirculation pump.
Displaying:
- Room temperature
- Outside temperature
- Heating program
- Operating condition
- Solar yield as graphic display
Settings:
- Set room temperatures for standard mode
(day temperature) and reduced mode (night temperature)
via the standard display
- Heating program, switching times for heating circuits,
DHW heating and DHW recirculation pump plus further
settings via plain text menu on the display
- Party and economy mode can be enabled via the menu
- Only for heating circuit with mixer:
Fitted room temperature sensor for room temperature
hook-up
Note: For room temperature hook-up, the Vitotrol 300A
must be installed in the main living room (lead room).
(continued)
RS function:
Installation in the main living room on an internal wall
opposite radiators. Never install inside shelving units,
in recesses, or immediately by a door or heat source
(e.g. direct sunlight, fireplace, TV set, etc.). The fitted
room temperature sensor captures the actual room
temperature and effects any necessary correction of
the flow temperature.
WS function:
Installation anywhere in the building.
Connection:
- 2-core lead 18 AWG, length max. 164 ft. (50 m)
(even if connecting several remote control units)
- Never route this lead immediately next to 120/208/460V
cables
- LV plug as standard delivery must be installed in the main
living room (lead room).
Specification:
Power supply via KM BUS
Power consumption:
Protection class:
Max. ambient temp.
- at operation:
- when storing
or transporting:
Set room temp. range
The set room temperature for reduced mode is adjusted
at the control unit.
Accessories
0.2 W
III
32 to 104ºF (0 to 40ºC)
-4 to+149ºF (-20 to+65ºC)
37 to 99ºF (3 to 37ºC)
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