7)
Empty the cistern ready to set the fill time :
Hold the
SET
button, tap
Manual Flush
to start filling,
release the
SET
button. When flushing starts, tap
Manual Flush
to close the valve. While filling, check
for a good flow of water and adjust with trickle cock on pipe end if required. If flow noise is a problem,
e.g. next to sleeping quarters or classrooms, reduce the flow by means of a trickle cock.
8)
Set the fill time :
Each time the valve opens, it should stay open long enough to fill and flush, hence it
should start and end empty, so this is where we tell it how long to stay open. Hold the
SET
button, tap
Manual Flush
to start filling, release the
SET
button. The light in the domed lens flashes every 2
seconds to show setting in progress. Wait until the cistern is
part way through flushing then tap
the
Manual Flush
button to close the valve. The cistern fill time is now memorised and will be used every
time a flush is started whether automatically or manually. Maximum fill time is 31 minutes.
9)
Set switch 3
as required (see 4 overleaf). Check all screws, gland and connections for security.
Screw controller unit lid onto box.
10) Fill in your part of the registration sheet and leave it with these instructions with the owner/manager.
Please explain section 4 (switch settings) to the person in charge of building maintenance.
SWITCHES / CONNECTIONS / INDICATOR
Multiple cisterns
2 or 3 cisterns with a common feed may be controlled by a single controller and valve. In this case,
adjust outlet cocks feeding each cistern so that they have roughly equal fill times (during step 7), then set
up the fill time using the slowest cistern (step 8). Contact technical support if further advice is required.
Regular Maintenance
Every 3 years in very hard water areas, dismantle and if necessary clean the valve and internal strainer
(lemon juice is effective at clearing scale), then reassemble and operate
Manual Flush
to confirm
correct operation. Ensure that the view from the controller is not obstructed. Test PIR detector as below.
Smartflush Installation Troubleshooting Guide
All units are fully tested prior to despatch. If there is an apparent fault please check the following :-
PROBLEM - UNIT WORKS ON MANUAL FLUSH BUT DOES NOT APPEAR TO SEE ANYONE
Test the infra-red detector
(PIR) as follows :-
1) Ensure valve is closed. (If necessary, use
Manual Flush
button with switch 3 on).
2)
Press and hold
SET
button
, watching the domed lens. It should flash once to confirm that the power
is good, then again a second later to show that test mode has been entered. Release button.
3) Watch the light, which flashes when slow movement is detected. (Can take up to 1 second ).
4) Exit test mode by a short press of the
SET
button or the
Manual Flush
button if enabled. (If left in test
mode, the unit automatically reverts to normal operation after 16 minutes to avoid call-backs).
5) After testing, return switch 3 to the desired position to leave
Manual Flush
button enabled or not.
6) To avoid false triggering, e.g. by scent sprays, switch on switch 4 for lower sensitivity.
N.B. If the above test works and
Manual Flush
also works and fills for the correct time, then the unit will
work correctly in normal use. The controller
normally gives no indication
that it has seen anyone,
except that the red light flashes just once at the start of each timing cycle. The unit can be reset ready for
a new cycle by opening and closing the valve using
Manual Flush
, then waiting for 10 seconds.
PROBLEM - VALVE WILL NOT CLOSE
N.B. The valve has a magnetic latch so it may be left open or closed when disconnected.
a)
Test power
and connections:- Press and hold the
Manual Flush
button; after the first flash, it will
then flash once or more to confirm that power is present. With switch 3 on,
Manual Flush
should
alternately open and close the valve. If there is no response, check that wires and connector are
correctly connected and have not been damaged, ensuring both pins on the white plug are
connected and that red wire goes to "+". Power board light should always be on.
b)
Press the
Manual Flush
button (see facing page). It opens or closes the valve on each press.
Ensure that switch 3 is switched ON (Away from edge of box) otherwise
Manual Flush
is disabled.
The red light flashes each time the unit tries to open the valve using
Manual Flush
, to test for
reversed wires. If the red light flashes as the valve closes, the blue and brown wires are reversed.
c)
Is the valve fitted the correct way round
? On the Asco valve, the inlet end is stamped with the
word 'IN'. A reversed valve will usually allow water to flow all the time mains pressure is applied.
d) Remove the coil retaining clip.
Slide off the coil assembly
. If the valve stays open, the problem
is inside the valve body. Dismantle and inspect as per (e) below.
e) If the valve was previously working or it appears to be trying to close,
debris or scale inside the
valve
is a likely cause. Dismantle the valve, taking careful note of order of assembly and orientation
of the spring. Clean moving parts and strainer (soaking in lemon juice removes scale well). The
plunger should move freely against the spring pressure. Inspect the orifice and seal for dirt or
damage. The orifice should be a smooth circle; in areas with very hard, abrasive water, the orifice
may become pitted, causing leakage through the valve. If so, the valve will need to be replaced. To
reduce future wear in this case, use a trickle cock on the pipe end to reduce the flow, then reset the
fill time.
f)
Wiring fault ?
Check valve and controller connectors for loose or shorting wires. Check connector
polarity :- Brown +2 goes to pin 2 on the Asco valve.
PROBLEM - VALVE WILL NOT OPEN
a)
Slacken compression nuts
on each side of the valve to test that there is water pressure on the
Inlet side and that there is no blockage after the valve (e.g. a stuck washer on a cistern cock.)
b) See a,b,e and f of previous problem.
PROBLEM - CISTERN ALWAYS SEEMS TO BE EMPTY / UNIT NOT WORKING
The cistern should be empty between flushes. When a fill cycle occurs, the cistern should fill and
flush and the valve should turn off during the flush, hence the cistern will usually remain empty. With
a typical fill time of 3 minutes and a cycle time of 30 minutes the unit will appear to be 'not working'
for 27 out of every 30 minutes even at busy times, so the chance of seeing any activity on a spot
check is small. If in doubt see first problem (facing page).
PROBLEM - FILLING TIME TOO SHORT / LONG
Set the filling time again
, carefully following the fitting instructions. Remember to start the self-
timed fill with the cistern empty, i.e. having just flushed. The fill time is accurate to 1 second or so
due to the quartz crystal used for timing. Any fill time up to 30 minutes may be set. If a 20 minute
cycle is selected and fill time is longer than 20 minutes, the valve will open immediately on detection
and stay open for the set fill time. If a fill time longer than 30 minutes is needed, then either there is
a restriction to the flow or the water pressure is too low. As supplied Springwell Smartflush can work
with a 20 litre cistern fed with as little as a 1 metre head. A low pressure valve is available for more
extreme conditions.
Fluctuations in mains water pressure may cause the fill time to be a little too short or too long, but
this will only result in a missed or double flush occasionally. Minor fluctuations are compensated for
because the unit will remain "in step" as long as the valve turns off during the emptying of the
cistern, because the cistern always empties to the same level.
