Making Settings; Maintenance - Grohe Tectron 38 698 Installation Instructions Manual

Making settings

Setting mode
The flow volume can be checked and changed in setting mode
(see Setting the flow volume).
The detection zone of the fitting can be checked. The indicator
lamp in the sensor system of the fitting illuminates in setting
mode when the detection zone of the fitting is reached by an
approaching user.
It is possible to set the detection zone via the optional remote
control.
Flushing is immediately triggered when the detection zone is
exited again. The minimum delay time of 7 s is not available in
setting mode.
To activate setting mode, proceed as follows:
Disconnect the power supply to the electronics and reconnect
after 5 s. The plug connection between the servo motor and
the electronics must not be detached.
Setting mode is activated.
Setting mode is automatically terminated after 3 min.
Setting the flow volume
The factory-set flow volume is 6 l.
The flow volume can be changed as follows:
1. Activate setting mode (see above).
2. Hold hand at a distance of approx. 5 - 10cm in front of the
sensor system in the fitting.
The indicator lamp in the sensor system of the fitting flashes
quickly.
3. After approx. 5 s, the indicator lamp extinguishes
automatically.
4. Remove hand from the detection zone (at least 90cm).
5. Again hold hand at a distance of approx. 5 - 10cm in front of
the sensor system.
The flow volumes are indicated via the indicator lamp in the
sensor system by groups of flashing signals separated by
a pause.
6. Flow volumes and display:
The number of flashing signals of the consecutive groups
corresponds to the following flow volumes:
- 3 = flow volume 3 litres
- Pause
- 4 = flow volume 4 litres
- Pause
- 5 = flow volume 5 litres
- Pause
- 6 = flow volume 6 litres (factory setting)
- Pause
- 7 = flow volume 9 litres
- Pause
After the group with 7 flashing signals, the routine starts
from the beginning.
7. Selecting the flow volume
The flow volume is selected by removing the hand from the
detection zone (at least 90cm) in the pause after a group of
flashing signals. Once the hand is removed, the fitting
immediately flushes with the selected flow volume (the
corresponding flashing signals are displayed again during
flushing).
8. The flow volume can be readjusted within the next 20 s,
if necessary, by again holding the hand at a distance
of 5 - 10cm in front of the sensor system (see point 5).
The selected flow volume is accepted as the new setting and
setting mode is automatically terminated if there is no hand in
front of the sensor system within 20 s of flushing. The area
directly in front of the sensor system must be kept free from
objects for these 20 s as otherwise the flow volume will be
unintentionally adjusted once more.
5

Maintenance

• Shut off water supply
• Switch off voltage supply
• Inspect and clean all components and replace if necessary
See technical product information for cistern for
information on maintaining the cistern parts.
Replacing the transformer, see fold-out page III, Fig. [20]
Replacing the servo motor
1. Disassemble plate, see fold-out page III, Fig. [21].
2. Disconnect plug-in connectors, see Fig. [22].
3. Disassemble servo motor, see Fig. [23].
4. Calibrate new servo motor, see Calibrating the servo
motor.
5. Install new servo motor, see Installing the servo motor.
6. Install wall plate, see Installing the plate.
Replacing the electronics
1. Disassemble plate, see fold-out page III, Fig. [21].
2. Disconnect plug-in connectors, see Fig. [22].
3. Disassemble servo motor, see Fig. [23].
4. Replace electronic module, see Fig. [24].
5. Calibrate servo motor, see Calibrating the servo motor.
6. Install servo motor, see Installing the servo motor.
7. Install wall plate, see Installing the plate.
Calibrating the servo motor
Caution: The servo motor must be calibrated outside the
cistern.
1. Connect voltage supply, see fold-out page IV, Fig. [25].
The servo motor must not be connected when
performing this operation.
The LED in the electronics begins to flash.
2. Connect servo motor to electronic module, see Fig. [26].
The LED in the electronics stops flashing and adjustment
automatically starts. The servo motor moves to the
adjustment positions.
Caution: It must be ensured that the movement is not
disrupted by obstacles.
To prevent falsification of the servo motor adjustment, the lever
must not be removed.
Calibration has been completed when lever is at approx. 90°
and the LED in the electronics does not flash, otherwise see
section: Fault/cause/remedy.
3. Disconnect plug-in connectors, see Fig. [27].
Replacement parts, see fold-out page I (* = special
accessories).
Care
For directions on the care of this fitting, please refer to the
accompanying Care Instructions.