GIBO Trough-Type Sensor Water-Saving Device: Functional User Guide

GIBO Fully Automatic Sensor Water-Saving Flush Valve for Trough Toilets

How the Trench-Type Sensor Water-Saving Device Works

The trench-style sensor water-saving device employs microcontroller fuzzy logic control and operates using pyroelectric infrared emission and reception principles. The system for trench-type toilets comprises three components: a main controller, curtain-style infrared sensors, and solenoid valves (EN 15091). It is installed by adding a solenoid valve to the inlet pipe of the original automatic flush tank, with curtain-style infrared sensors mounted on the ceiling at the entrances to both the squat pan and urinal trenches. The infrared sensors automatically detect presence; when a person enters the public restroom, the signal is sent to the electronic controller, where the microcomputer processes it according to pre-set programs and issues commands to activate the solenoid valve, allowing water to fill the automatic tank for flushing. If no one is present, the entire system remains inactive and does not flush. This achieves precise management characterized by "unattended operation, automatic control, flushing upon detection, and standby when empty," thoroughly eliminating the waste caused by continuous 24-hour flushing in trench-style public restrooms. The solution offers convenience, hygiene, and significant water savings, with a reduction rate of 60%–90%. It is widely used in trench-style public restrooms within schools, factories, corporate facilities, hospitals, military bases, stations, office buildings, and dormitories.

GIBO Automatic Sensor Water-Saving Device Specifications:

Key Features of the Toilet Sensor Water-Saving Device:

1. Automatic Sensor: Intelligent management with fully automatic microcomputer control—flushes more when occupied, less when sparsely used, and not at all when vacant.

2. Digital Adjustment: Program parameters can be adjusted in seconds, suitable for various applications.

3. High Reliability: Microcomputer control technology, battery-free operation, and non-volatile programming ensure that settings are never lost under any circumstances. The system is engineered to industrial standards for a service life of over eight years.

4. Built for Extreme Environments: Ensures reliable operation in harsh conditions, from scorching summer heat to freezing sub-zero temperatures.

5. Safety: Installed at a height of 2.4 meters or above in restrooms to prevent user contact and deter vandalism.

6. Easy Installation: No concealed in-wall components required; installation takes only 2 hours.

7. High ROI: Achieves water savings of up to 60%–90%, with full investment payback typically within 1–3 months.

GIBO Sensor-Activated Trough Water-Saving Valve – Commissioning:

1. After confirming that the power supply and water pressure are normal, turn on the power switch of the trench sensor water-saving device. The power indicator and operation indicator will light up, initiating a self-check cycle. A 60-second forced flush is then performed (to ensure a thorough rinse upon power restoration after an outage).

2. Observe the fill indicator light on the sensor water-saving controller and the cistern water level after the light turns off. Estimate the approximate time required to fill the cistern (to the level at which flushing begins). This duration is the approximate fill time; adjust it moderately based on site conditions.

3. Set the delay time: recommended 2–5 minutes for squat pans and 0–2 minutes for urinals; set to 0 if the urinal has no cistern.

4. Adjust the sensor angle so that the infrared detection zone precisely covers the effective area of the urinal trough and toilet pan. If the detection zone is too wide, passersby near the trough may trigger a false flush; if it is too narrow, standing on the urinal step may fail to activate the flush. Since every restroom layout differs, adjust as necessary. For example, for a long urinal trough, covering approximately 70% of the central section with the infrared detection zone is sufficient, as high usage frequency ensures that detecting any presence will trigger the flush.

Installation Guidelines for Water-Saving Devices in Trench-Type Public Restrooms

1. Before installation, flush the water supply pipes to remove debris. When installing each fitting, prevent pipe dope, hemp, PTFE tape, and other foreign materials from entering the piping system. Refer to the illustration for the correct method of wrapping PTFE tape;

2. All pipes must be secured with pipe clips to prevent any movement;

3. The control box and solenoid valve shall be installed at a height of more than 2.2 meters above the floor to prevent vandalism and ensure personal safety;

Installation Steps for Sensor-Activated Water-Saving Devices in Public Restroom Trough Toilets

1.  Secure the water-saving device’s main controller to the wall using expansion screws (recommended installation near the cistern or inlet).

2. Inspect the channel and groove layout to determine the sensor probe installation position, then install the sensor probes;

3. Install the inlet solenoid valve;

4. Install the solenoid valve, ensuring the coil is positioned vertically upward;

5. Install the drain pipe;

6.  Wire according to the power distribution layout of public restrooms. For safety, use compliant cable trunking for proper routing at a height of no less than 2.4 meters.

7. Connect the solenoid valve to the output terminal of the control box;

8. Connect the sensor probe control cable to the main unit;

9. Connect the power cord to the power input of the control unit.

Maintenance and Upkeep of Sensor-Activated Water-Saving Devices for Public Restroom Trough Toilets

With a stable power supply, the sensor-operated water-saving device generally requires no maintenance—simply clear debris from the filter every 2–6 months. If any issue occurs, please check the following:

1. Check the power supply: Toggle the power switch on the control box on and off several times. If the power indicator light does not illuminate, inspect the power line.

2. Check the water supply: Open the inlet valve, ensuring the main water supply valve is fully open. Long-term accumulation of impurities may reduce water flow through the inlet valve; cycle the valve a few times to flush out debris.

3. Clean the filter: After a prolonged water outage, first-time flow (e.g., at the end of school holidays) may carry pipe debris. Please clean the solenoid valve filter promptly.

4. Replace the automatic pop-up waste: After six months of use, the automatic pop-up waste may fail to seal tightly or shut off water flow; replace the pop-up waste as needed.

If the issue persists after thorough troubleshooting, please contact GIBO Technical Support. Toll-free service hotline: 4006622163

GIBO ␂1␂ Touchless Water-Saving Valve for Public Restrooms: The Optimal Choice for Retrofitting Trough-Type Public Toilets