Herz clever&smart narrow It Room Sensor User manual

HERZ clever&smart Room Sensor narrow It 3 F810 61
Digital room temperature sensor with communication via 1-Wire bus in connection with the HERZ clever&smart Control Box.
Technical Data
Power Supply 5 VDC SELV or PELV
Measurement Range 0 °C ... 60 °C
Accuracy: +/- 1 °C
Resolution: 0,1 °C
Protection Class IP 20
Max. Cable Length up to 100 m powered (three-wire connection recommended), using twisted pair cables
Dimension 21 mm x 43 mm
Housing Design plastic housing pure white
Installation Methods flush-mounted switch box
Wall Installation
Mount the HERZ clever&smart Room Sensor narrow It in a suitable place.
Caution!
Device and function may be damaged. Select a suitable environmental condition. Direct sunlight,
sources of heat and cold, e.g. radiators and windows must be avoided.
Mounting in flush-mounted switch box
Use the supplied screws (3.0 x 16 mm) to fix the mounting frame to the switch box. Open the terminals with a
screwdriver and make the electrical connection as described below.
1-Wire ID
Each HERZ clever&smart Room Sensor narrow It has a unique 16-digit 1-Wire ID. This ID is required for sensor-
room assignment in HERZ clever&smart Room Controller . The ID can be found inside the sensor on the type plate
and on the supplied sticker. We recommend placing the sticker in the table of the HERZ clever&smart Control Box
instruction manual or in the HERZ clever&smart Control Box terminal plan sticker to simplify the later configuration of
the system.
Electrical Connection
To connect a HERZ clever&smart Room Sensor narrow It one of the terminal points VDD/ GND/ DQ is required in
each case. The additional three clamping points are for easy connection of further sensors. Use a suitable twisted
pair cable and ensure sufficient wire cross-section e.g. LIYCY 2 x 2 x 0.75mm²
Only to be used with SELV or PELV protective extra-low voltage.
If shielded cables are used, contact between the shielding and the PCB can cause damage to the
device and lead to malfunctions.
Herz Armaturen Ges.m.b.H. | Richard-Strauss-Straße 22 | 1230 Vienna, Austria | [phone] - 0 | [email protected] | www.herz-armaturen.at
3F81061-EN-07/2023 1
HERZ clever&smart Room Sensor narrow It

Connection examples
Example 1: Series connection. The installation leads from one sensor to the next.
The 1-Wire system must be realised with 3 wires (5 VDC, DQ, GND). The
wiring must be done in series, see diagram opposite. Stub lines should be
avoided or made as short as possible. The total cable length can be up to
100 m. A suitable twisted pair cable must be used and sufficient conductor
cross-section must be ensured, e.g. LIYCY 2 x 2 x 0.75 mm², in order to
avoid impermissible voltage drop at the HERZ clever&smart room
sensors.
Example 2: Tree structure. Several stub lines lead from one main line to the individual sensors.
Herz Armaturen Ges.m.b.H. | Richard-Strauss-Straße 22 | 1230 Vienna, Austria | [phone] - 0 | [email protected] | www.herz-armaturen.at
3F81061-EN-07/2023 2
HERZ clever&smart Room Sensor narrow It