USER GUIDE
Your Autostopcock unit has been designed to make the isolating of the mains water as easy as using
a light switch and provides three essential Safety Detection Systems. It is battery operated using
a standard Duracell Alkaline PP3 battery or similar and means you don’t need to combine mains
electricity and water.
The maintenance of the unit is limited to changing the battery, which has a typical life expectancy of
three years. Approximately twenty eight days before the battery expires your AutoStopCock unit will
sound a loud bleep every five seconds warning that the battery needs to be changed.
To replace the battery remove the two screws securing the face plate, open the unit and remove the
old battery. Replace with a new Duracell Alkaline PP3 or similar and refit the face plate. No resetting of
the unit is necessary.
Once you have replaced the battery check the operation of the unit. This is easily done by leaving the
cold water tap in the kitchen on and then switching the unit OFF and ON. The water will flow and cease
in conjunction with the switch being operated.
LEAK DETECTION
One of the key features of Autostopcock is detecting leaks by monitoring the flow of water in the
incoming mains water pipe. Any periods of constant water flow exceeding the factory set maximum
(user specified) will cause the water to be shut OFF. To reset the system push the water switch OFF,
then back ON. This should only be done after a thorough investigation and when all necessary
repairs to the water system have been completed.
FREEZE DETECTION
The Autostopcock control unit contains a thermostat which continuously monitors the ambient
temperature. It is factory set to turn the water OFF at 3-4 degrees C (36-38 deg F).
If the water is ON (normal position) and for some reason your heating fails or for any other reason
your home gets colder than 4 degrees C, your Autostopcock will switch the water OFF and the L.C.D.
display will show a flashing OFF. This indicates that the unit has automatically switched the mains
water OFF. If the temperature rises above 4 degrees C (38 deg. F) the Autostopcock will not switch
ON again until it is reset by switching to OFF then ON again. This is a safety feature which allows a
thorough check for damaged pipework to be completed.
VACANT PROPERTY DETECTION
Another important feature provided by your Autostopcock is vacant property detection. This
safeguard monitors the water flow and turns it OFF after any inactive period exceeding 72hrs. This will
be indicated by OFF flashing in the LCD display. The water can be reset by switching to OFF then ON
again.
OVER-RIDE
If you require constant water flow for more than the factory set maximum time (such as for watering
the garden) switch the control unit to OVER-RIDE, this will give a maximum 1 hour of constant water
flow without triggering the Leak Detection Shut Off.
SELF EXERCISING
In the ON position (which is the normal operating position) it may, in a domestic situation, be
sometime before it is switched OFF. As with most stopcocks and the associated valves, regular
operation is necessary to avoid any build-up of lime scale on the moving parts which may render them
faulty.
The Autostopcock unit will automatically self-exercise the valve every 48 hours, i.e. it will very briefly
switch OFF and ON twice. After this process it will continue to operate in the ON position. This enables
the valve to stay operational.
FITTING THE VALVE: Turn off the mains water at existing manual Stop Valve. IMPORTANT- Do not
disturb the earth bonding. Care should be taken as some residual water will be contained in the pipe
beyond the stop valve. Cut into the rising main above the manual stop valve. (A brass Y Filter should
be fitted if evidence of foreign bodies is detected).
Place the valve and the flow sensor in position noting the flow IN and OUT and cut a piece of copper
pipe suitable length if required (NOTE: IF USING THE 15MM COPPER PIPE FLOW SENSOR IT MUST BE
FITTED IN A VERTICLE POSITION, +/- 15 DEGREES, FLOW DIRECTION UPWARDS. THE BLACK STYLE
FLOW SENSORS MUST BE FITTED SO THAT THE SWITCH WHERE THE ELECTRICAL CABLES EXITS IS
IN AN UPRIGHT POSITION). Flush out the pipe to clear any debris. Then using wire wool clean both
ends of pipe. Place the compression fittings and an olive on the cut ends, place valve between and
tighten both joints.
Note: If you have a water softener fitted, the Flow Sensor must to be fitted after the water softener to
ensure your AutoStopCock works correctly.
To wire the valve use the black wiring block contained within the valve box, connect BLACK wire to
terminal ONE and GREY wire to terminal TWO on the black block then connect the BLACK and GREY
wires to terminal 1 & 2 on the reverse of the Autostopcock face plate. Connect the wired black plug
onto valve and screw together. The green/yellow and the brown wire connect to the wires from the
copper or brass flow sensor using the crimping connectors supplied and connects at terminals 8 and 9
on the reverse of the faceplate.
Black Solenoid Valve 1 (or + positive) connect to terminal 2 on reverse of faceplate.
Grey Solenoid Valve 2 (or – negative) connect to terminal 1 on reverse of faceplate.
Green/Yellow Flow switch ~ connect to terminal 8 on reverse of faceplate.
Brown Flow switch ~ connect to terminal 9 on reverse of faceplate.
FITTING THE CONTROL PANEL: Remove the front panel from the back box and screw the back box
in the correct position on the wall. Feed the cable from the valve through the gland, connect the
battery and refit the front panel onto the back box. Then fix the cable to the wall using mini trunking or
cable clips (not supplied). Alternatively, feed the cable behind plasterboard wall for a concealed finish.
To view the installation video online go to
http://www.autostopcock.co.uk/InstallDemo.aspx
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