Wireless Repeater; Room Temperature Sensor - Viessmann VITODENS 242-F Technical Manual

Control units
(cont.)
Specification
Power supply via PV cells and energy store
Radio frequency
Wireless range

Wireless repeater

Part no. 7456 538
Mains operated wireless repeater to increase the wireless range and
for use in areas where wireless communication is difficult. Observe the
"Wireless accessories" technical guide.
Do not use more than one wireless repeater per Vitotronic control
unit.
■ To prevent the need for radio signals to penetrate steel reinforced
concrete ceilings/floors and/or multiple walls at a strongly diagonal
angle.
■ For circumventing large metallic objects situated between the wire-
less components.

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
7
8 0
□
VIESMANN
96
868 MHz
See "Wireless accessories"
technical guide
2 (copper)
IP rating
Permissible ambient temperature dur-
ing operation, storage and transport
Specification
Power supply
Power consumption
Radio frequency
Cable length
Safety category
IP rating
Permissible ambient temperature
– Operation
– Storage and transport
Specification
Safety category
IP rating
Sensor type
Permissible ambient temperature
– Operation
– Storage and transport
IP 43 to EN 60529; ensure
through design/installation
−40 to +60 °C
230 V~/5 V− via plug-in
power supply unit
0.25 W
868 MHz
1.1 m with plug
II
IP 20 to EN 60529; ensure
through design/installation
0 to +55 °C
−20 to +75 °C
III
IP 30 to EN 60529; ensure
through design/installation
Viessmann NTC 10 kΩ at
25 °C
0 to +40 °C
−20 to +65 °C
VITODENS