Viessmann VITOCROSSAL 300 Technical Data Manual page 14

Accessories
Optional Accessories
Vitotrol 200A
One Vitotrol 200A can be used for every heating circuit
in a heating system. The Vitotrol 200A can regulate one
heating circuit and up to two remote controls may be
connected to the control unit.
KM BUS Participant
The Vitotrol 200A remote control regulates the required
set room temperature in standard mode, from any room
in the house.
- Party and economy mode can be enabled via keys
- Only for heating circuit with mixing valve
Fitted room temperature sensor for room temperature
hook-up
WS function:
Installation anywhere in the building.
RS function:
Note: Never activate the RS function for underfloor
heating circuits (inertia). In heating systems with
a heating circuit without mixing valve and heating
circuits with mixing valve, the RS function must
only affect the heating circuit with mixing valve.
Room temperature hook-up:
Installation in the main living room on an internal wall
opposite radiators. Never install inside shelf units,
recesses, immediately by a door or heat source (e.g.
direct sunlight, fireplace, TV set, etc.).
The integral room temperature sensor captures the actual
room temperature and effects any necessary corrections
of the supply temperature as well as a rapid heat-up
at the start of the heating operation (if appropriately
programmed).
14
(continued)
Vitocrossal 300 CU3A 26 to 57 Technical Data
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 120/208/460 V
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.
0.2 W
III
32 to 104ºF (0 to 40ºC)
-4 to+149ºF (-20 to+65ºC)
37 to 99ºF (3 to 37ºC)