5 Information for electricians
5.1 Installation and electrical connection
DANGER!
Touching live parts in the installation environment can result in
an electric shock.
The device could get damaged!
Disconnect the connecting cables before working on the device
and cover all live parts in the area!
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Selecting installation location
As a display and operating panel, the device should be mounted in a place
that is easily accessible. The user habits are decisive when determining the
installation height. We recommend an installation height of approx. 1.50 m.
Direct sunlight or powerful light sources could impair the proximity sensor.
Connecting and installing the device
Observe the layout requirements for SELV installations.
To avoid EMC interference, do not lay input cables parallel to mains cables.
Fasten the enclosed supporting ring (12) over the oblong-shaped holes onto
at least 2 opposing screw domes of the wall box.
Alternatively, the supporting ring has 4 additional fixing holes for
other mounting systems.
Guide the bus and auxiliary cable out of the wall box.
The second wire pair (yellow/white) of the KNX bus coupling unit may be used
for connection of auxiliary voltage.
Connect the bus cable via the connecting terminal (6). Be sure that the
polarity is correct.
Connect auxiliary voltage using a connecting terminal (7) independent of
polarity.
After connecting the operating voltage, the device initialises itself for a few
seconds. Message
appears. The
device cannot receive any information via the KNX bus during this time.
If the device should also be used for temperature control, lay an external
temperature sensor (see Accessories) in a ductwork and guide out the sensor
head at the measurement point.
Do not install the temperature sensor near any sources of interference, e.g.
electric stoves, refrigerators, draughts or sunshine. These influence the
temperature measurement of the sensor.
Plug the enclosed pre-assembled cable into the jack
(4).
Connect the external temperature sensor to the conductor sleeves of an
input of this cable:
- Input 1: black
GND
/white
- Input 2: black
GND
/yellow
- Input 3: black
GND
/purple
- Input 4: black
GND
/blue
All black connecting wires
GND
are connected together internally.
Attach the design frame (11) at the back and press over the fixtures (15)
until it snaps into place.
Position the device over the supporting ring in the correct position so that
the mounting devices on the device (13) and the pins on the supporting ring
(12) are lying on top of each other (Figure 10).
Slowly press the device onto the support ring (12) until the clamping springs
(16) engage in the support ring and the magnetic holding points (14) addi-
tionally secure the support ring.
(12)
(11)
Figure 10: Installation
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Summary of Contents for WDT030
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