Notes Regarding Room Temperature Hook-Up (Rs Function) For Remote Control Units; Information Regarding The Vitotrol 200A And 300A; Vitotrol 200A; Vitotrol 300A - Viessmann VITODENS 200-W Technical Manual

Control units
(cont.)
Specification, receiver
Operating voltage
Rated breaking capacity of the zero
volt contact
– max.
– min.
IP rating

Notes regarding room temperature hook-up (RS function) for remote control units

Never activate the RS function for underfloor heating circuits (iner-
tia).

Information regarding the Vitotrol 200A and 300A

Vitotrol 200A and 300A may be combined in a single heating sys-
tem.

Vitotrol 200A

Part no. Z008 341
KM BUS subscriber
A Vitotrol 200A can be used for each heating circuit in a heating sys-
tem. Up to 2 remote controls may be connected to the control unit.
Functions:
■ Display of room temperature, outside temperature and the operating
condition.
■ Setting the standard room temperature (day temperature) and oper-
ating program via the standard display.
Note
The reduced room temperature (night temperature) is set at the con-
trol unit.
■ Party and economy mode can be enabled via keys
■ Only for heating circuit with mixer:
Room temperature sensor for room temperature hook-up
Note
For room temperature hook-up, the Vitotrol 200A must be installed
in the living space (lead room).
Installation location:
■ Weather-compensated mode:
Installation at any point in the building.
■ Room temperature hook-up:
Installation in the main living room on an internal wall opposite radi-
ators. Never install inside shelving units, in recesses, or 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 correction of the flow tem-
perature as well as a rapid heat-up at the start of the heating oper-
ation (if suitably encoded).

Vitotrol 300A

Part no. Z008 342
KM BUS subscriber
Up to 3 heating circuits can be operated with one Vitotrol 300A; alter-
natively one Vitotrol 300A can be employed for each heating circuit in
a single heating system.
Up to 2 remote controls may be connected to the control unit.
VITODENS
Protection class
230 V~ ± 10 % 50 Hz
Permissible ambient temperature
– during operation
6(1) A, 230 V~ – during storage and transport
1 mA, 5 V–
IP 20 to EN 60529;
ensure through appropriate
design/installation
In heating systems with a heating circuit without mixer and heating
circuits with mixer, the RS function must only affect the heating circuit
with mixer.
The Vitotrol 200A can regulate one heating circuit, the Vitotrol 300A
up to 3 heating circuits.
Connection:
■ 2-core lead, length max. 50 m (even if connecting several remote
■ Never route this lead immediately next to 230/400 V cables
■ LV plug as standard delivery
Specification
Power supply via KM BUS
Power consumption
Protection class
IP rating
Permissible ambient temperature
– during operation
– during storage and transport
Set room temperature range
Functions:
■ Displaying:
■ Settings:
control units)
1 4
8
– Room temperature
– Outside temperature
– Heating program
– Operating condition
– Solar yield as graphic display
II to EN 60730-1 subject to cor-
rect installation
0 to +40 °C
–25 to +65 °C
0.2 W
III
IP 30 to EN 60529;
ensure through appropri-
ate design/installation
0 to +40 °C
-20 to +65 °C
3 to 37 °C
VIESMANN
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