Immersion Temperature Sensor; Mounting Base For Programming Unit; Radio Clock Receiver; Km Bus Distributor - Viessmann VITODENS 200-W Technical Manual

Control units
(cont.)

Immersion temperature sensor

Part no. 7438 702
To capture the temperature in a sensor well.

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

5
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

KM BUS distributor

Part no. 7415 028
For the connection of 2 to 9 devices to the Vitotronic KM BUS.
VIESMANN
64
Specification
Cable length
IP rating
Sensor type
Permissible ambient temperature
– Operation
– Storage and transport
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
6 6
4 1
2 (cop-
Specification
Lead length
Protection
Permissible ambient temperature
– during operation
– during storage and transport
5.8 m, fully wired
IP 32 to EN 60529; ensure
through design/installation
Viessmann NTC 10 kΩ, at
25 °C
0 to +90 °C
−20 to +70 °C
3.0 m, fully wired
IP 32 to EN 60529;
safeguard through appro-
priate design and installa-
tion
0 to +40 °C
-20 to +65 °C
VITODENS 200-W