The equipment set is intended for the contact-​free actuation of flushes in urinals.

The Viega Hygiene+ function actuates a flush after 24 hours without use to prevent stagnation in the potable water lines.

The cartridge valve should be cleaned once a year to ensure fault-​free operation. See Cleaning cartridge valve

The product has the following technical data:

Flush actuation takes place without contact via the infrared sensor on the flush plate.

The flush volume can be set in five stages.

In order to actuate a flush, a person must be within the detection area of the infrared sensor for at least 8 seconds.

If a person leaves the detection area, a flush is automatically actuated.

Depending on the setting, the flush duration is between 1 and 20 seconds.

A flush cycle can also be manually actuated by placing a hand in front of the sensor during the first 8 seconds.

Stagnation can lead to the build up of germs (e. g. legionella) in drinking water pipes. It is important to rinse the pipeline regularly to prevent the build up of bacteria. The Viega Hygiene+ function was developed for this reason.

The Viega Hygiene+ function automatically actuates a Hygiene flush after 24 hours without use. The flush volume of the Hygiene flush can be set in five stages.

The system's range of functions can be expanded through the connection of accessories onto the control.

Buttons, switches or photo sensors for triggering the flush can be connected to the control on site via the extension cable model 2241.95.

The cartridge valve remains open as long as the contact via the extension cable is closed.

The overflow protection prevents that the cartridge valve remains open for longer than a minute. The contact must be re-​opened to enable a further flush.

The battery compartment model 8351.11 (article number 731 786) can also be connected as an alternative to the power pack.

Range of the infrared sensor

The following settings are possible:

• Close range, so that the flush cannot be inadvertently actuated.

• Medium range from approx. 450 mm. This setting is the factory setting.

• Far range, so that the automatic actuation of a flush also works at a greater distance from the urinal.

Manual flush in close range

If this option is activated, a flush can be actuated in the first 8 seconds of entering the detection area by placing a hand in front of the sensor.

Lid in front of sensor

This setting is for the case that an open lid covers the sensor. The function is deactivated in the factory settings. If the function is activated, a flush cycle is actuated as soon as the lid is removed from the sensor zone.

However, during planning, we still recommend that the lid is not placed in front of the sensor in order to ensure the device works perfectly.

Flush duration

This setting is intended exclusively for the flush duration for the directly actuated flushes. The flush duration for hygiene flushes is set separately.

The flush duration can be set in 5 steps to reach the required flush volume.

Hygiene flush

The setting determines if a hygiene flush is actuated after 24 hours without use.

Flush duration hygiene flush

The flush duration of the hygiene flush can be set in 5 steps to reach the required flush volume.

If external sensors are to be connected to the control, their connection cables must be laid through to the revision opening before tiling is begun.

The following minimum distances must be complied with to ensure the infrared sensor works perfectly:

A minimum distance of 1000 mm must be maintained to the opposite walls.

If high-​gloss wall claddings (polished tiles, mirrors, etc.) are situated opposite, increase the minimum distance to 1500 mm.

A minimum distance of 1500 mm must be maintained to urinals situated opposite with infrared sensors.

The following tools are required for mounting:

• Flat-​blade screwdriver

• Fork spanner (size 17)

• Fork spanner (size 32)

Requirements:

• the pre-​wall element has been mounted

• the revision opening is freely accessible

• the tiling work is completed.

Requirements:

• A 230 V mains connection is available on site.

• The connection cable is de-​energised.

In the next step, the basic panel of the flush plate must be mounted.

Requirements:

• The cartridge valve is mounted.

• The power pack is connected.

Requirements:

• On site button with closing function or potential-​free contact available

• Extension cable model 2241.95 available

Programming the control can be carried out for 30 minutes after the supply voltage is applied. The control returns to normal operation after 30 minutes – programming is now blocked. If the settings have to be changed after this time, the control must be disconnected from the power supply for at least 10 seconds.

Requirements:

• The control programming block is not active.

Using the guide values from the table below, you can determine the flush volume on the basis of flow pressure and flush duration:

Requirements:

• The programming lock of the control is not active.

You can define the hygiene flush volume on the basis of the flow pressure and flush duration using the values in the table:

Requirements:

• The programming lock of the control is not active.

Normal soap or a mild cleaning agent can be used for regular care and prevention of lime scale on the flush plate. Under no circumstances should scouring agent or scratching objects be used.

Strong stains can be removed using typical household cleaner. Rinse the detergent thoroughly with clear water after the prescribed exposure time. There should be no residue on the components.

To clean the flush plate, the flush actuation function can be briefly deactivated.

The cartridge valve may be cleaned, if necessary. Proceed as follows: