Enviro-Tech INSTALLATION INSTRUCTIONS URINAL FLUSH VALVE

ET3-R

Diagrams showing the Enviro-Tech ET3-R urinal flush valve components and water rating.

Thank you for purchasing this Enviro-Tech product.

INSTALLATION INSTRUCTIONS ET-3R URINAL FLUSH VALVE

Enviro-Tech strongly recommends using a qualified and registered plumber and electrician for installation. Ensure all pipework is flushed adequately, especially in new builds or where lines have been disrupted. Components of sensor products are particularly susceptible to debris and require more thorough flushing than standard plumbing fixtures. IMPORTANT: Flush pipe must be DN20 copper pipe or equivalent. Installation must comply with AS/NZS3500. Incorrect installation is NOT covered by your warranty.

TECHNICAL SPECIFICATIONS

Function	ET3-R
Power Input	AC: 220-240V 50/60Hz
Power Consumption	900 mA
Water Pressure	100 kPa - 500 kPa (recommended 350 kPa)
Inlet/Outlet Diameter	15 mm (1/2 G)
Detection Zone	1600 x 1000 mm (adjustable)
Inductive Confirmation Time	6 times within 5 seconds
Confirmation Time After Use	5 seconds
Flush Time	4 seconds (adjustable)
Reset Time After Flush	20 seconds
Trap Seal Protection	Automatic flush every 6 hours if not used
Flush Delay Time	After user leaves: 30 seconds

COMPONENTS

Diagrams illustrating the main components: Solenoid Valve, Sensor, Transformer, and Bracket.

Solenoid Valve
Sensor
Transformer
Bracket

SOLENOID VALVE INSTALLATION

Flush pipework thoroughly. Failure to do so will result in the solenoid sticking soon after installation, which is NOT covered by your product warranty.
Attach the bracket, then insert the solenoid valve.
Connect the water feed to the inlet valve.
Connect the outlet to the urinal.

Illustrations showing correct and incorrect cable connections for the solenoid valve, and the mounting of the solenoid valve with screws.

SENSOR INSTALLATION

Note: Ceiling must be level. If the ceiling is sloping/pitched, the detection zone will be altered.

For Single Urinals:

Drill a 70 mm hole in the ceiling, centered on the urinal and 100 mm from the wall/back of the urinal to the center of the sensor.
Remove the screws from the sensor plate and install the flush box into the ceiling using the screw clips. Ensure the screw holes are aligned as shown.
Make any required changes to flush time or pre-flush settings (refer to pages 4 & 5). Refix the sensor plate using the 2 screws. Ensure sensor plate screws are parallel to the wall for a single urinal.

Diagrams illustrating the sensor installation for a single urinal, including hole size, placement relative to the wall, and screw alignment.

For Twin or Trough Urinals:

Drill a 70 mm hole in the ceiling, centered on the trough or the 2 individual urinals, and 300 mm from the wall/back of the urinal to the center of the sensor.
Remove the screws from the sensor plate and install the flush box into the ceiling using the screw clips. Ensure the screw holes are aligned as shown.
Make any required changes to flush time or pre-flush settings (refer to pages 4 & 5). Refix the sensor plate using the 2 screws. Ensure sensor plate screws are aligned facing the wall for twin or trough urinals.

Diagrams illustrating the sensor installation for twin or trough urinals, including hole size, placement relative to the wall, and screw alignment.

CABLE CONNECTIONS OF ET3-R

Insert and connect the male-to-male connection cable between the sensor and the solenoid (Fig 1).
Connect the sensor to the transformer using WAGO connectors. Ensure marked taped ends go together in one connector, and unmarked ends go into the other (Fig 1).
Lock the WAGO connectors and then connect the transformer to mains power (Fig 2). The system will run a test and be ready to use.

Diagrams showing the cable connections between the solenoid valve, sensor, and transformer, including WAGO connector usage and mains power connection.

DISTANCE

Turn the potentiometer clockwise to increase the sensing distance and anti-clockwise to decrease it.

FACTORY SETTINGS

Pre-flush is "ON".
Time is "4".
"1-10 Jumper Right" is set at 350 kPa, giving a flush volume of 0.8 L for a single urinal.

PRE-FLUSH ON/OFF

Factory setting is 'ON' with the jumper set to the 'Right'.
To turn pre-flush 'OFF', set the jumper to the 'Left'.

FULL FLUSH TIME

Set the jumper to the 'Left' to choose 11-20s (where 20s = 0s).
Set the jumper to the 'Right' to choose 1-10s (where 10s = 0s).
Set the coding wheel to the required flush time. Refer to the table on the next page for full details of flush volumes and time setting options for different urinal types.

Diagram of the control board showing the Potentiometer (Distance sensitivity adjustment), Coding Wheel (Flush Time adjustment), Fuse, and Jumpers for Pre-flush and Time settings.

FLUSH VOLUME SETTINGS

Time settings for flush volumes without 'pre-flush':

Urinal Type	Dynamic Pressure	Time Setting	Flush Volume
Single Urinal	350 kPa	6 s	0.8 L
	500 kPa	5 s
Twin Urinal	350 kPa	12 s	1.6 L
	450 kPa	11 s
	500 kPa	10s (10=0)
Slab/Trough Urinal	350 kPa	19s	2.4 L
	400 kPa	17s
	450 kPa	16s
	500 kPa	15s

Time settings for flush volumes with 'pre-flush':

Urinal Type	Dynamic Pressure	Time Setting	Flush Volume
Single Urinal	350 kPa	4 s	0.8 L
	500 kPa	3 s
Twin Urinal	350 kPa	8 s	1.6 L
	450 kPa	7 s
	550 kPa	6 s
Slab/Trough Urinal	350 kPa	12s	2.4 L
	400 kPa	11s
	500 kPa	10s (10=0)

DETECTION ZONE (GUIDE ONLY)

2.4 M Height Installation

Urinal Type	Side View	Front View	Top View
Single Urinal	Diagram showing side view of detection zone for a single urinal at 2.4m height.	Diagram showing front view of detection zone for a single urinal at 2.4m height.	Diagram showing top view of detection zone for a single urinal at 2.4m height.
Twin Urinals	Diagram showing side view of detection zone for twin urinals at 2.4m height.	Diagram showing front view of detection zone for twin urinals at 2.4m height.	Diagram showing top view of detection zone for twin urinals at 2.4m height.
Slab Urinal	Diagram showing side view of detection zone for a slab urinal at 2.4m height.	Diagram showing front view of detection zone for a slab urinal at 2.4m height.	Diagram showing top view of detection zone for a slab urinal at 2.4m height.

3 M Height Installation

Urinal Type	Side View	Front View	Top View
Single Urinal	Diagram showing side view of detection zone for a single urinal at 3m height.	Diagram showing front view of detection zone for a single urinal at 3m height.	Diagram showing top view of detection zone for a single urinal at 3m height.
Twin Urinals	Diagram showing side view of detection zone for twin urinals at 3m height.	Diagram showing front view of detection zone for twin urinals at 3m height.	Diagram showing top view of detection zone for twin urinals at 3m height.
Slab Urinal	Diagram showing side view of detection zone for a slab urinal at 3m height.	Diagram showing front view of detection zone for a slab urinal at 3m height.	Diagram showing top view of detection zone for a slab urinal at 3m height.

TROUBLESHOOTING

PROBLEM	POSSIBLE CAUSE	SOLUTION
No water out or will not stop running	Most common: Plugs not connected correctly. No water supply or No Power.	- Check water and power supply. - Unplug all cables, leave unplugged for 5 minutes, then reconnect everything carefully. Clean filter. Clean/replace solenoid.
Too little water flow	Water pressure is low or turned down.	Adjust/raise the water pressure.
	Flow Valve needs adjusting. The filter or solenoid is blocked.	Adjust flow valve on solenoid. Clean the filter. Clean/replace the solenoid.
Too much water flow	Water pressure is too high. Flow valve needs adjusting.	Adjust/lower the water pressure. Adjust flow valve on solenoid.
Flush time or sensing distance is not adequate	Sensor requires adjustment.	See the 'Settings' section of this manual for instructions.

For detailed troubleshooting advice, visit the Enviro-Tech websites enviro-tech.com.au or enviro-tech.co.nz or call the contact numbers provided.

Enviro-Tech WARRANTY

This Enviro-Tech product is guaranteed for 12 months from the date of purchase. This is a parts-only warranty, and Enviro-Tech is not liable for any associated costs incurred in the replacement or repair of any item. For full warranty conditions, see the Warranty page on the Enviro-Tech websites.

AFTERCARE

Ensure good water quality is maintained and the filter on the solenoid valve is cleaned regularly. Failure to do so could result in a blocked solenoid, impair product functionality, and may invalidate your product warranty. Surfaces should be maintained using a clean, damp cloth; no abrasive agents or materials should be used or come into contact with the surface finish, as this will invalidate your warranty.

This Enviro-Tech product is manufactured strictly to adhere to the ISO9001 standard, WaterMark certification, and WELS standards. Enviro-Tech reserves the right to update product technology at any time.

CONTACT INFO:

Australia: 1300 530 883 or info@enviro-tech.com.au
New Zealand: 0800 2 ENVIRO or info@enviro-tech.co.nz