4 (9)
detection of water. The sensor is made from a strip
of cloth that contains metal threads. If the material
becomes wet or damp, the leak detector will set off
an alarm and transmit a signal to the master unit,
which shuts off the water.
Example of leak detector installation in a kitchen cup-
board.
Loosen the cover on the leak detector by unscrew-
ing the four screws. Install two AA 1.5V alkaline
batteries if an external power supply or bus com-
munication are not used. Alternatively, an external
power supply adapter can be connected to a DC
connector. See under Accessories.
NOTE!
When a leak detector is connected by bus
communication or an external 5V DC current,
no batteries should be used.
Only alkaline batteries should be used with
the product, not rechargeable batteries.
The built-in temperature monitoring can be deac-
tivated by moving the DIP switch to ON. This
function is normally always activated. If the leak
detector is connected using bus cable, communi-
cation and power are supplied via the bus cable.
Connect the bus cable to D and -. The cable should
be twinned type, 2 x 0.5 mm
2
.
+ D -
D -
Terminal on the leak detector for bus communication.
Place the leak detector at a suitable height from
the floor so the sensor cable can reach down to its
location. The detector should be easy to access for
changing batteries and to reset any alarms that are
indicated with a sound and diode lights. Secure
the leak detector with suitable screws. Connect
the sensor to the leak detector.
Starting the system
Power up the master unit and other units with
either battery power or an external power source.
Programming
If the system is connected using bus communica-
tion, no programming is required. If the units are
supplied with battery or external power, wireless
communication must be established with the mas-
ter unit as below.
Leak detector
To programme the leak detector, simultaneously
press the Open and Timer keys on the master unit
for 2 seconds (until radio symbol begins flashing).
Then press the red button on the underside of the
leak detector for 2 seconds (until right diode flashes
green). If programming is successful, the right
diode will show a green light for a few seconds.
Programming the leak detector.
Installation guide | LK Water Safety System WSS PIR
EN.40.C.9.1911
