IRC urinal flush control valve
installation guide
1
Introduction
the infrared urinal flush control (IRC) valve automatically manages the supply of water to a urinal cistern.
On detection of movement in the washroom, the IRC activates a 30 minute cycle allowing water to flow into the cistern. During the last five minutes of the 30 minute cycle the sensor ‘looks’ for movement. If no movement is detected during these five minutes the valve will close. If, however, the sensor does detect movement a new 30 minute cycle is activated. If no movement is detected for
12 hours the IRC will activate a hygiene cycle.
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2
supplied parts
1
Sensor unit
2
Valve unit
3
Remote valve plug and gasket
4
Flush mount plate
5
Terminal cover
6
Mounting bracket
7
Screws
8
Clip nuts
9
White blanking plug
10 3mm selectable valve seat
11 Screw cap
1
2
3
4
5
6
7
A
B
C
D
not supplied
• Two core low voltage cable for remotely installed applications.
• Pattress box for surface / wall mounted applications.
FIT IN ACCORDANCE WITH WATER REGULATIONS
8
9
10
x 2 x 1 x 2 x 1
11
x 1 x 2 x 2 x 3
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2
Positioning
NOTE:
One IRC is required for every cistern.
A pipe mounted, on the solenoid
(Battery powered only)
NOTE: On multi outlets, ensure outlets are evenly distributed and balanced so the cistern gives equal flush.
B wall mounted, remote from the solenoid
(Battery or mains electricity)
3
C ceiling mounted, remote from solenoid
(Battery or mains electricity)
125 Degrees
138 Degrees
8.4 m
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11.4 m
4
3
Valve installation
Install the valve on the 15mm pipe feeding the cistern.
NOTE:
The valve should be positioned with the directional arrow pointing in the same direction as the flow of the water and the solenoid on top.
NOTE:
There should be no restriction, such as a petcock or bibtap, after the valve.
To change the direction of the valve remove the screws from the black valve body, turn the valve around and screw the valve back in.
changing the selectable valve seat
NOTE:
3mm orifice should only be fitted when the water supply is from a tank or is at low pressure. (Refer to chart below)
1. To change the valve seat, remove the screws from the solenoid housing; this will access the selectable valve seat.
2. Remove the selectable valve seat from the valve body.
3. When refitting, place the selectable valve seat into the solenoid housing and fit the solenoid housing back on to the valve body.
Valve seat
1.5mm orifice insert
1.5mm orifice insert
3mm orifice insert
3mm orifice insert
Dynamic Pressure
6 bar
2 bar
2 bar
0.1 bar
Max Flow lpm
2.7
1.6
3.0
0.9
Min Flow lpm
0.03
0.01
0.05
No flow
Solenoid housing
Selectable valve seat
‘O’ Ring
Valve body
Flow regulator
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4
Sensor installation
A pipe mounted – battery powered only
Insert the batteries into the battery compartment of the sensor unit. Fit the sensor on to the solenoid and secure using screw
A . Use the white blanking plugs 9 to fill in the unused holes.
9
A
B wall mounted or solid ceiling, remote from solenoid – mains or battery powered
Using a subsurface or surface mounted pattress box, wire the sensor unit to the solenoid ensuring that the ‘1’ on the sensor is connected to the ‘1’ on the remote valve plug and likewise the ‘2’ should be connected to ‘2’.
(See
E on page 7)
NOTE: Do not use batteries & mains power simultaneously. This will damage the sensor unit beyond repair.
For battery powered installations, insert the batteries into the battery compartment. For mains powered installations, wire the sensor unit using the appropriate mains voltage cable.
Fit terminal cover
5 to the sensor unit.
Insert the sensor unit and using two screws secure it to the pattress box.
A
NOTE: If the wiring is not connected ‘1’ to
‘1’ and ‘2’ to ‘2’ the polarity will be reversed and the valve will not function as intended.
5
9
A
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5
6
C flush mounted, ceiling tile installations remote from solenoid – mains or battery powered
1. Using the template supplied, cut a hole for the sensor in the ceiling.
2. Wire the valve as indicated in
E
.
3. Position the flush mount plate
5
4 and screw the terminal cover on to the back of the sensor unit (This will secure the flush mount plate).
4. Place the mounting bracket 6 over the back of the sensor unit and secure using screw
B
.
A
B
6
5
NOTE:
Allow space for the self-test button as indicated by supplied template.
4
D
plaster board installation
Install as indicated in section
B
.
1. Follow instructions C 1-3
2. Fit clip nuts
8 on plaster board
3. Punch holes in the flush plate and secure using screw
C
4. Fit screw caps
11
A
C
11
5
8
4
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E wiring the valve for remote sensor installation
Using low voltage 2 core cable, wire the remote valve plug and gasket taking note of the ‘1’ and ‘2’ number markings. You will need to match these numbers when wiring the sensor i.e.‘1’ to ‘1’ and
‘2’ to ‘2’.
Place the plug on the solenoid and secure in place with screw D .
5
Commissioning
Once all is installed, the flow rate will need to be adjusted to suit the particular installation.
Using the flow regulator on the bottom of the solenoid you can either increase or decrease the flow of water. Ideally the cistern should flush once every 30 minutes.
Adjust the valve by turning the screw at the base of the brass valve body clockwise to reduce the flow and anti-clockwise to increase the flow.
NOTE: If you have a 20 litre cistern it will need to fill a 100ml container in 9 seconds.
Flow regulator
Clockwise: reduces the flow rate
Anti-clockwise: increases the flow rate
D
7
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8
6
Self-test mode
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Test/Reset button
1
Reset button pushed (or power switched on or batteries inserted).
2
Test cycle
Valve Test Mode
Valve opens and closes five times – water flow should be heard.
Sensor Test Mode
Valve closed for one minute. Body movement causes the red (battery low) LED to flash. Check this by walking around the room to confirm the light is flashing.
3
Normal operation
Valve remains open for a period of 30 minutes after which it will shut down. If, however, presence is detected within the last five minutes of the 30 minute cycle, the valve will reactivate a new cycle.
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7
Power connection
Cistermiser IRC can be powered by either batteries or mains electricity.
8
Usage advice and specification
power
Voltage:
Mains Supply:
Battery Supply:
Batteries (recommended):
Operating Life:
6V DC. Current: Nominal 54µA, Peak 750mA for 50ms.
Nominal 230V 50Hz 20mA.
4 x 1.5V Alkaline Type AA (LR6).
Duracell Plus (Gold Top) MN1500 Capacity 2700mAh.
Up to three years with recommended batteries depending on washroom usage.
solenoid valve
6V Latching Valve:
UK WRAS approved. One valve per sensor unit.
pressure range
0.1 - 6.0 bar (Covered by selectable valve seat). Integral slow fill flow regulator.
If supply pressure is above 6.0 bar, fit a pressure reducing valve.
9
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10
9
Frequently asked questions
test mode does not function
No power
Ensure unit is powered. Change batteries if battery powered; ensure mains electrical power is functioning if mains powered.
Incorrect power supply. The valve
Disconnect one source of power and check by pushing the is powered by either battery or fitted simultaneously the sensor test/reset button. When the sensor is mounted directly on the mains electricity. If both have been valve it should be battery powered ONLY. Also check remote wiring if sensor is remote from valve.
may be damaged beyond repair
no water passing the valve
Water supply
Blockage on the outlet pipe
Mesh filter blocked on inlet
Ensure water supply is turned on and reaching the valve.
The valve comes with a factory fitted 1.5mm insert fitted for water pressures of 2 - 6 bar. If your water pressure is within this range and the optional 3mm insert has been fitted then revert back to the 1.5mm insert. The 3mm insert is for use with water pressures of 0.1 - 2 bar.
If a petcock or bibtap has been fitted, ensure it is removed or fully open. Instructions state there should be no restriction after the valve.
Remove valve. Check to ensure filter on the inlet side of the valve is clear.
Flow regulator
Ensure the flow regulator is fully opened; when the valve is letting water run, turn down to the required flow rate.
High water pressure (above 6 bar)
Fit pressure reducing valve.
No power
The power has failed while the valve is in the ‘closed’ position.
Ensure unit is powered. Change batteries if battery powered; ensure mains electrical power is functioning if mains powered.
Press reset button.
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water is continuously flowing through the valve
User perception
Once activated the valve remains open for a period of
30 minutes and will reactivate if someone comes within the range of the sensor in the last five minutes of the 30 minute period. The valve appears to work continuously as long as someone is in the washroom. To test the valve, cover the sensor to prevent further detection and check again after
30 minutes when there should be no water running.
No power
Valve incorrectly fitted
The power has failed while the valve is in the ‘open’ position.
Ensure the unit is powered. Change batteries if battery powered; ensure mains electrical power is functioning if mains powered.
Press reset button.
Ensure the arrow on the brass body is pointing in the direction of water flow.
the valve remains shut when the room is occupied but opens at other times
Incorrect remote wiring
If the valve and sensor have been set up remotely, ensure the remote wiring is wired as follows: ‘1’ to ‘1’ and ‘2’ to ‘2’.
If you find the wiring is connected ‘1’ to ‘2’ and ‘2’ to ‘1’ then the valve is working in reverse.
water flow rate through the valve seems to be very slow
Flow regulation
Increase the flow rate by turning the flow regulator anticlockwise until you reach your desired flow rate; ideally it should fill the cistern once per activation and then flush.
Mesh filter blocked
Flow restrictor/insert
Remove valve; check to ensure filter on the inlet side of the valve is clear.
The valves comes with a factory fitted 1.5mm diameter insert fitted for water pressures of 2 - 6 bar; this should be changed over to the 3mm insert (for water pressures of 0.1 - 2 bar) to allow more water through.
water flow rate through the valve is fast and the cistern is flushing too frequently
Flow regulator
Decrease the flow rate by turning the flow regulator clockwise until you reach your desired flow rate. Ideally it should fill the cistern once per activation (i.e. every 30 minutes) and then flush.
11
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9
Frequently asked questions
the LED does not flash
User perception
The LED only flashes during the self-test/reset cycle or when there is low battery power.
there is a leak around the solenoid
If dislodged, re-position. If lost; call Cistermiser.
If the black bracket/solenoid has been removed from the block and rotated for flow orientation the
‘O’ ring seal at the join may be dislodged or lost
I have just changed the batteries and there is no power to the unit
Battery orientation
Check battery orientation; ensure there is not excessive corrosion on battery terminals. Ensure batteries are a reputable brand. Press reset button.
cistermiser product warranty and extended warranty
Cistermiser products are guaranteed for
12 months from the date of manufacture.
The guarantee is for faulty products and parts only: there is no labour warranty. If you believe your product is faulty, please either contact
Cistermiser directly on 0118 969 1611 or at [email protected], with a photograph and the serial number, to diagnose the cause of the problem.
The warranty on Cistermiser products can be extended, within one year of date of manufacture, at no cost to three years from the date of installation by completing the enclosed warranty card or at www.cistermiser.co.uk/warranty.
Please make a note of the serial number and take a photograph of the installation before you leave site.
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IPAC/15-A-05