LK WSS PIR User manual

1 (9)
Install the electric valves on the hot and cold water
supply pipes for the relevant room. Installation of
electric valves must be carried out by a qualied
plumber in accordance with industry regulations
for safe water installation.
NOTE!
Install electric valves after any feed to a
safety system that requires water.
Safety systems such as home sprinklers or emer-
gency cooling for a solid fuel boiler etc. should be
connected before the electric valve, to avoid any
risk to their water supply. An installation with a
water lter that is backwashed should also be con-
nected before the electric valve to avoid interfering
with its function. The system prevents water dam-
age that may occur after the electric valve position.
The LK Water Safety System WSS can alternatively
be mounted in the LK Installation Cabinet on a
wall or ceiling.
Implementation
The LK Water Safety System WSS is a product
designed to prevent or limit water damage. The LK
WSS PIR system is intended to control the water
supply with motion detection in public environ-
ments such as toilets, showers, changing rooms
etc. A leak detector can also be tted where there
is a risk of leaks. The system is developed to be
user-friendly and reliable.
System description
The LK Water Safety System WSS PIR consists of a
master unit, a PIR motion detector and two electric
valves. Additional motion and leak detectors can
be added to the system.
When the PIR sensor detects motion, it gives a
signal to the master unit, which opens the electric
valves for the water supply. A timer function also
starts, which shuts off the water supply after a
preset time when no further motion is detected.
The PIR sensor is always connected by wire.
One or more leak detectors can be connected by
wire or wirelessly as accessories. Leak detectors
can be located where there is a risk of leaks. When
they detect a leak, the master unit closes the elec-
tric valves, shutting off the water supply. In this
state, the PIR sensor cannot open the water supply
until the leak detector and master unit have been
reset. The leak detector also has a built-in tempera-
ture monitor to shut off the water at temperatures
under 5° C.
The master unit can also act as a leak detector by
connecting an LK Sensor WSS.
System assembly
Installing electric valves
LK Water Safety System WSS PIR
EN.40.C.9.1911
Installation guide | LK Water Safety System WSS PIR

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
4343434
• 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 exible
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
exible 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
12
3456
nc
no
com
nc
no
com
12
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

3 (9)
Connecting a PIR Sensor
Power supply for a PIR Sensor
A PIR Sensor can be supplied with power by either:
1. Connecting the PIR Sensor (+) to the LK WSS
master unit terminal (6+) or terminal (7+).
Connecting the PIR Sensor (-) to the LK WSS mas-
ter unit terminal (4-).
2. External separate 12V connection.
Connect power supply in parallel if connecting
several PIR Sensors to the same LK WSS master
unit
Connecting PIR Sensor NC inputs
Connect one PIR Sensor (NC) to the LK WSS mas-
ter unit terminal (5+).
Connect the other PIR Sensor (NC) to the LK WSS
master unit terminal (5-).
Connect several PIR Sensors in parallel with regard
to NC inputs (power supply must be connected
in parallel).
Example with three PIR Sensors.
Bus connection for leak detector
If units such as leak detectors are to be connected
by cable for bus communication, connect them to
the master unit's terminal 4.
Connect the cable to D and - in the master unit.
The equivalent marking is found on the units to be
connected. Use 2-wire twisted cable 2 x 0.5 mm2,
telecom cable type. Units can be connected in a
star network or in series using bus communication.
+ D - D -
Connecting sensors
If leak detection is required at the master unit, con-
nect a sensor to the master unit’s contact 2. Sensors
are available as accessories.
Power supply
Power supply to the master unit is provided using
the supplied network adapter. Connect to the unit's
contact 1.
Cable penetrations
Remove the required number of holes in the rub-
ber gasket for cable penetration. Use the cable ties
supplied for strain relief. Secure the cable tie in the
hole pattern in the black rubber gasket.
Replace the cover
Screw the cover back onto the main unit. Ensure
the exible cable is not twisted. When all of the
units to be connected with bus communication
have been connected, connect the master unit's
network adapter to a wall socket.
Installing a PIR Sensor
Place a PIR sensor where motion detection is
required to control the water supply. Screw onto
the wall with suitable screws.
Installing a leak detector
Place a leak detector where possible water leaks
need to be detected. Suitable locations include the
kitchen sink unit cupboard, under a dishwasher
or other household appliances such as coffee
machines, water coolers or ice-makers. Other pos-
sibilities are in the utility room and under washing
machines, toilets and in the bathroom. Two sen-
sors are included with each leak detector. More
sensors can be added with LK Sensor and branch
cable WSS or LK Splitter Cable and LK Extension
Cable if required. See under Accessories. The leak
detector has a built in temperature monitor. If the
temperature is below +5 °C (default value, can be
changed via LK Webserver), the unit will set off an
alarm and transmit a signal to the master unit to
tell it to shut off the water. Place the sensor where
any potential water leak can be detected at an early
stage. Attach sensor using the Velcro tape supplied.
Try to keep the sensor as at as possible for rapid
Installation guide | LK Water Safety System WSS PIR
EN.40.C.9.1911

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 mm2.
+ D - D -
Terminal on the leak detector for bus communication.
Place the leak detector at a suitable height from
the oor 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 ashing).
Then press the red button on the underside of the
leak detector for 2 seconds (until right diode ashes
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

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PIR sensor
PIR sensors do not need to be programmed. They
can only communicate via cable.
Function check
After completing installation and programming,
perform a function check according to the instruc-
tion below.
Electric valve
Test the electric valve by using the Open and Close
keys for water on the master unit. The alarm for
a valve fault is activated if the valve moves too
slowly, which may happen the rst time the system
is started. Reset any alarms by pressing the Open
or Close keys on the master unit for 5 seconds. The
alarm should stop when the valve is opened and
closed a few times.
PIR sensor
Test a PIR sensor by entering the room in which it
is installed and checking that the water supply is
opened. Leave the room, and check that the water
supply is shut off after the set time on the master
unit.
Leak detector
Test the leak detector by moistening the sensor.
The unit and master unit will set off a visual and
audible alarm and the electric valve should shut
off. Reset the alarm by drying the sensor. Then
briey press the red button on the underside of
the leak detector. Press the Open or Close key on
the master unit or control panel for 5 seconds to
reset the alarm.
Operating instructions
Installing a LK Water Safety System reduces the
risk of water damage in a property. The system is
controlled and monitored by the master unit. A
leak detector and PIR sensor are connected to the
master unit.
Keys
There are three keys on the master unit used for
controlling the system. When a key is pressed, it
will light up or ash.
Water open (Open)
Indicated by green diode.
Water closed (Close)
Indicated by red diode.
Water shut-off with delay
Not used for PIR setting
Alarm symbols
Alarms from the system are shown by a diode
lighting or ashing, showing the respective sym-
bol on the main unit. Two multi-colour diodes are
mounted on the underside of the leak detector
and input link. An explanatory label can be found
on the cover. The following symbols and diode
colours can be found on the four different units.
Leak detector
Water alarm (A-alarm)
Indicated by red diode on the control
panel and on the master unit by a
red diode and audible signal. The left
diode ashes blue with an audible
signal on the leak detector.
Max time (A-alarm)
Indicated on the main unit by a red
diode with audible signal.
Valve fault (A-alarm)
Indicated on the control panel by
Open and Timer ashing green and
yellow. On the master unit by a red
diode and audible signal.
Installation guide | LK Water Safety System WSS PIR
EN.40.C.9.1911

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Temperature alarm (A-alarm)
Indicated by red diode on the control
panel and on the master unit by a
red diode and audible signal. Right
diode ashes blue and an audible
signal is emitted on the leak detector.
Left diode ashes blue on the input
link.
Communication alarm (B-alarm)
Indicated by a yellow diode on the
master unit and control panel. The
right diode will ash red on the leak
detector and input link. It can take
up to 6 hours before the alarm acti-
vates. Radio and bus communication
are both monitored.
Battery alarm (B-alarm)
Indicated by a yellow diode on the
master unit and control panel, and
on the leak detector by the left diode
ashing red.
External power supply to leak de-
tector and input link
Indicated by the left diode lighting
up green.
Programming radio communication
on the leak detector and input link
Indicated by the right diode lighting
up and ashing green.
An alarm will immediately be displayed on the
master unit. If a leak detector sets off an alarm for
water or temperature, this alarm is immediately
sent to the master unit and the valve will close.
Communication is restricted between the units in
order to maximise battery capacity.
In the event of an alarm
If an alarm occurs, identify which unit it is for,
and the cause.
A-alarms
Reset the leak detector's water alarm by pressing
the red key on the underside of the leak detector.
The sensor may also need to be dried or the alarm
will recur.
Cut off a temperature alarm by pressing the red
key on the underside of the leak detector. The
diode stops ashing when the temperature rises
above the alarm limit. Temperature alarms from
the control panel and input link are reset automati-
cally and the diode stops ashing when the tem-
perature rises above the alarm limit. Only when
the temperature has risen over the limit on all units
for which a temperature alarm has been triggered
will the temperature alarm reset, and a new alarm
can be activated. Default alarm limit is 5°C.
Press the key on the leak detector to reset.
The max time alarm will activate unless the system
receives a signal to stop water supply after two
hours and ve minutes. This is an indication that
the PIR sensor is faulty or a cable is broken. If the
max time alarm is activated, the water supply will
not be opened by a PIR sensor until the system
has been reset.
Reset an A-alarm by holding down the Open or
Close key on the master unit for 5 seconds.
Press the Open key on the master unit to reset the system.
Installation guide | LK Water Safety System WSS PIR
EN.40.C.9.1911

7 (9)
In the event of a valve fault alarm, check that the
white knob is pressed down on the electric valves,
and that the cable for the cold and hot water valves
is connected to the correct contact in the master
unit. If a electric valve for hot water is connected,
DIP switch no. 6 must be in the ON or OFF posi-
tion. The valve is monitored. Test by opening and
closing it a few times. Reset an A-alarm by holding
down the Open or Close key on the master unit
for 5 seconds.
B-alarms
If a communications alarm is displayed on the
master unit. Find the unit with a communication
fault. Bring it closer to the master unit or connect it
to the master unit using a bus cable. This is shown
on the leak detector when the right diode ashes
A communication alarm will reset when the unit
regains contact with the master unit. Press one
of the keys on the unit to send data to the master
unit and to check whether the communication is
working.
A battery alarm can be due to low battery level in
one of the leak detectors. This is shown when the
left diode on the leak detector ashes red. Find the
unit that has low battery and replace the battery.
Following a B-alarm for communication or battery,
the alarm will automatically reset when commu-
nication is working again or a battery is replaced.
Expanding the system
To add one or more units to the system, refer to
Starting the System in this guide, or the Quick
Guide.
Removing units from the system
If removing a unit from the system, the system will
have to be reset. Refer to Resetting the System. The
relevant units can then be reprogrammed.
Resetting the system. Reset the system to default
settings on the master unit as follows:
1. Disconnect power to the master unit.
2. Press the Timer key.
3. Reconnect the power at the same time as hold-
ing down the Timer key. The unit will ash during
reset. Continue to hold down the key until all three
diodes are on. Reset is now complete.
Only the master unit needs to be reset. Leak detec-
tors cannot be reset. Once the master unit has been
reset to default settings, the system can be repro-
grammed according to Starting the System in this
guide.
Manually opening/closing
A electric valve can be forced open by lifting and
turning the white handle (1) until the status indica-
tor (2) indicates the valve is open. Press the handle
down again. Closing can be achieved in the same
way. Turn the handle until the status indicator dis-
plays closed.
Valve with status indicator and emergency opening handle.
Operation and maintenance
Check system function after installation and once
every year. Test leak detectors by moistening the
sensors.
The unit and master unit will set off a visual and
audible alarm and the electric valve should shut
off. Reset the alarm by drying the sensor. Then
press the red key on the underside of the leak
detector. Hold the Open or Close key for 5 sec-
onds on the master unit or control panel to reset
the alarm.
Installation guide | LK Water Safety System WSS PIR
EN.40.C.9.1911

8 (9)
Technical data
Master unit
Power supply 12V 1A DC.
Contact for sensor connection: 3.5 mm.
Radio frequency: 433 MHz, bi-directional.
2-wire bus communication.
Temperature measurement: -10 - 55 °C.
2 LK electric valves can be connected.
2 LK Pressure Sensors 4-20mA can be connected.
1 digital input.
2 alarm outputs, max. resistive load 4A 250V AC.
3 keys with 6 alarm indicators.
Dimensions: 162 x 90 x 45 mm
PIR sensor
Power supply 12VDC.
Dimensions 105 x 61 x 44 mm.
Leak detector
Power supply 2 x AA alkaline batteries or 5V 100
mA DC.
Contact for sensor connection: 3.5 mm.
Radio frequency: 433 MHz, bi-directional. 2-wire
bus communication.
Temperature measurement: -10 - 55 °C. DIP
switch to shut off the temperature alarm.
2 diodes for alarm indication and one buzzer.
Dimensions: 137 x 62 x 28 mm.
Electric valve
Pressure range: 0-10 bar.
Temperature range: 0-80 °C.
Connection: G15, G20 or G25.
Power supply: 12V DC.
Material: stainless steel SS304.
Cable with snap connector tted.
433 MHz
Comment
Completely trouble-free operation cannot always
be guaranteed with the technology available
today that allows free use of the frequency band.
Every installation should therefore be tested indi-
vidually.
Environment
LK Systems is afliated with El-Kretsen for collect-
ing and recycling electronics and batteries. Used
batteries should be sorted as batteries or small bat-
teries and deposited for battery recycling. When
the system has reached the end of its life, it should
be sorted as electronics or other electronics and
deposited with a recycling centre.
Guarantee
LK Systems AB is responsible for faults in products
that appear within two years from the delivery of
the product to the buyer. If LK is responsible for
the fault in the product, LK has the right to replace
the product with either a new or repaired product.
The liability period for replacement or repair of a
product or spare part does not exceed the liability
period for the original product. The seller is not
responsible for faults resulting from accidents,
incorrect assembly, incorrect installation, incorrect
care, abuse or other irregular use. LK Systems AB
is not liable for any form of loss or damage caused
by a non-functioning product. Liability is strictly
limited to replacement of the product.
System approval
LK Water Safety System WSS is tested and
approved in accordance with SINTEF Technical
Approval No. 20598.
Installation guide | LK Water Safety System WSS PIR
EN.40.C.9.1911

9 (9)
Accessories
LK Leak Detector WSS
RSK 188 22 97
LK Adapter 5V
RSK 188 22 89
LK Electric valve 12V
RSK 188 23 08 G15
RSK 188 22 86 G20
RSK 188 24 03 G25
LK PIR sensor WSS
RSK 188 25 44
LK Sensor with branch cable WSS
RSK 188 22 22
LK Branch Cable WSS
RSK 188 22 23
LK Extension Cable WSS
RSK 188 22 88
LK Bracket WSS Manifold Cabinet UNI
RSK 188 22 21
LK Rail WSS Manifold Cabinet UNI
RSK 188 23 21
LK Systems AB, Box 66, 161 26 Bromma, Sweden | www.lksystems.se/en
Installation guide | LK Water Safety System WSS PIR
EN.40.C.9.1911