Room Temperature Sensor; Mounting Base For Programming Unit; Radio Clock Receiver - Viessmann VITODENS 200-W Technical Manual

Control units
(cont.)

Room temperature sensor

Part no. 7438 537
Separate room temperature sensor as supplement to the Vitotrol
300A; to be used if the Vitotrol 300A cannot be installed inside the main
living room or in a suitable position where the unit could capture and
adjust the temperature.
Installation in the main living room on an internal wall opposite radia-
tors. Never install inside shelving units, in recesses, or immediately by
a door or heat source (e.g. direct sunlight, fireplace, TV set, etc.).
Connect the room temperature sensor to the Vitotrol 300A.
Connection:
■ 2-core lead with a cross-section of 1.5 mm
■ Lead length from the remote control up to 30 m
■ Never route this lead immediately next to 230/400 V cables
8 0
□

Mounting base for programming unit

Part no. 7299 408
To be able to freely position the programming unit of the control unit
anywhere outside the appliance.
2 0

Radio clock receiver

Part no. 7450 563
For receiving the DCF 77 time signal (location: Mainflingen near Frank-
furt/Main).
Radio controlled setting of time and date.
Install on an outside wall, facing the transmitter. The reception may be
reduced by metallic elements in the building structure, e.g. steel rein-
forced concrete, neighbouring buildings and sources of electro-mag-
netic interference, e.g. HV and public transport lines.
Connection:
■ 2-core lead, length up to 35 m with a cross-section of 1.5 mm
per)
■ Never route this lead immediately next to 230/400 V cables.
VITODENS 200-W
Specification
Safety category
IP rating
Sensor type
Permissible ambient temperature
– during operation
– during storage and transport
2 (copper)
To be fitted directly to the wall or a surface box.
Distance from the boiler: Observe the lead length incl. plugs of 5 m.
Comprising:
■ Wall mounting base with fixing materials
■ 5 m long cable with plugs
■ Cover for the control unit aperture on the boiler
4 1
2 (cop-
6 6
III
IP 30 to EN 60529
ensure through appropri-
ate design/installation
Viessmann NTC, 10 kΩ at
25 °C
0 to +40 °C
−20 to +65 °C
VIESMANN
49
5