2 (9)
Connecting the electric valve
Attach the electric valve cable connector to the
master unit. Connect the electric valve for cold
water to contact 9 and the electric valve for hot
water to contact 8.
NOTE! DIP switch no. 6 should be switched to
ON to activate monitoring of the hot water electric
valve.
If the electric valve's cables have been extended,
the spring terminals can be used instead. These
terminals have the same numbers as contacts 8
and 9. Connect the red cable to R and the black
cable to B.
DIP switches
The master unit has a row of DIP switches at pos
12 with the following functions:
• Select between NC and NO depending on which
PIR sensor is in use. Default is NC. This can be
changed to NO by switching DIP switch no. 1 to
ON.
• The alarm signal on the main unit can be switched
of by switching DIP switch no. 2 to ON.
• The value of the delay timer can be adjusted
using DIP switches 3 and 4. Refer to the matrix
below to set the desired length in hours. Default
is 2 min.
ON
3
2min
5min
30min
2h
4
3
4
3
4
3
4
• The temperature alarm can be deactivated by
moving DIP switch no. 5 to ON.
• Valve monitoring for the hot water valve is deac-
tivated on deliverl Activate by moving DIP switch
no. 6 to ON.
When installing a electric valve in an existing sys-
tem, perform a pressure test using the tap water
system's existing water pressure, and inspect all
new joints.
If the system is installed in a new building, per-
form a pressure test at 1.43 x estimated pressure,
i.e. 14.3 bar, and inspect all new joints.
Installing the master unit
Position the master unit close to the electric valves.
The cables are about 0.8 m long and can be extended
up to 3 m using the same cable area (2 x 0.5 mm2).
Fit the antenna included in the socket on top of
the master unit. Attach the master unit to the wall
using suitable screws, install it in an installation
cabinet. If the unit is placed in an LK Installation
Cabinet, the master unit can be mounted using an
LK Bracket WSS or LK Rail WSS Manifold Cabinet
UNI.
Connecting the master unit
Check that the unit’s power supply is not con-
nected and that the unit is not live. Remove the
cover of the master unit. Be careful with the flexible
cable that connects the cover to the circuit board.
The cable is loosened by pulling out the connector
from terminal 13 on the circuit board. When replac-
ing the cover, check that the polished contact pin
faces upwards towards the antenna. Ensure the
flexible cable is not twisted.
Terminals 4 and 9 are spring terminals. Press the
button down to attach the cable. Terminals 10 and
11 are screw terminals.
1
2
3
10
11
4
5
6
7
8
9
12
13
Power 12VDC
Sensor 3,5 mm
Power LED
B-Alarm
A-Alarm
BUS
Digital In
Pressure 2, Hot Water
Pressure 1, Cold Water
Valve 2, Hot Water
Valve 1, Cold Water
DIP Switches
Keypad
1 NC/NO
2 Alarm Sound
3 Timer Set
4 Timer Set
5 Low Temp A-Alarm
6 Hot Water Valve
14
Pressure Alarm Level
1 2
3 4 5 6
nc
no
com
nc
no
com
1
2
12
13
6
8
9
3
4
5
6
7
8
9
10
11
D
+
+
-
-
+
-
-
R
R
B
B
14
EN.40.C.9.1911
Installation guide | LK Water Safety System WSS PIR
