The solenoid assembly is plumbed in on the water supply to the urinal cistern.The connection to the infrared sensor is made either by directly mounting the sensor module onto the solenoid or by using the 'floating socket' supplied for a remote mounting. If mounted remotely, the sensor module may be:
- Surface mounted using a standard pattress box.
- Recessed into a suspended ceiling using the 'flush mounting kit' (FMK), supplied with the IRC as standard.
- If the sensor detects no occupancy in 12 hours it will automatically open the valve for 30 minutes to allow one flush of the cistern to rinse the urinals and pipe work.
- The sequence is designed to maximise battery life, giving approximately 3 years' life from one good quality set of batteries.
- The flow rate of the water into the cistern is adjustable to maximise water economy. Generally this should be set so that the cistern flushes once every time the valve is opened. i.e. every 30 minutes during occupation.
- The solenoid is supplied with an interchangeable valve seat which is used to increase the flow to the cistern on low pressure supplies.
The infrared urinal flush control (IRC) valve automatically manages the supply of water to a urinal cistern. The PIR sensor detects movement and activates the solenoid valve allowing water into a urinal cistern.
- Ensures compliance with the Water Regulations
- Can be concealed to reduce the risk of vandalism
- Mains or battery powered option in the same box: no external transformer required
- Pipe, wall or ceiling mounted sensor: surface mounted or recessed
How it works
- The infrared urinal flush control (IRC) consists of a solenoid valve and the sensor module.
- When the IRC detects movement in the washroom a pulse from the sensor opens the normally-closed solenoid valve and water flows to the cistern; at the same time the sensor is switched off.
- After 25 minutes the power is restored to the sensor and as long as no movement is detected for 5 minutes, the solenoid valve closes, shutting off the water.
Reducing water wastage and costs
Urinals often flush regardless of use, wasting a lot of water, especially out of hours. Installing a Cistermiser IRC valve can save on average 129,600 litres of water per year and reduce costs by up to £302.51 per urinal bowl.
