1. Introduction
This manual provides detailed instructions for the installation, operation, and maintenance of the TOTO ECOPOWER Touchless 1.0 GPF High-Efficiency Toilet Flushometer Valve, model TET1UB32. This valve is designed for commercial applications, offering water conservation and touchless operation without the need for external power or routine battery replacement.
The ECOPOWER system utilizes hydro-turbines to generate and store electrical current from the force of running water, powering the sensor. This design ensures high efficiency and reliable performance in demanding environments. The valve is WaterSense® certified, CA Title 20, CalGreen, and ADA compliant.
2. Package Contents
Verify that all components are present before beginning installation:
- TOTO ECOPOWER Flushometer Valve (TET1UB32)
- 1 inch Angle Stop
- 12 inch Vacuum Breaker Set
- Spud Nut and Escutcheon (for connecting to toilet spud)
- Sweat Solder Kit
3. Specifications
| Feature | Detail |
|---|---|
| Model Number | TET1UB32 |
| Water Consumption | 1.0 Gallons Per Flush (GPF) |
| Dimensions (L x W x H) | 3.19 x 4.56 x 7 inches (81 x 116 x 178 mm) |
| Material | Bronze, Zinc |
| Exterior Finish | Polished Chrome |
| Inlet Connection Type | Solder |
| Outlet Connection Type | Sweat |
| Valve Type | Flush Valve |
| Power Source | ECOPOWER Hydroelectric Turbine (self-powered) |
| Compliance | WaterSense®, CA Title 20, CalGreen, ADA |

4. Setup and Installation
This flushometer valve is designed for use with toilets that have a 1-1/2 inch top spud inlet and utilize 12 inch vacuum breaker tubes. Installation should be performed by a qualified plumber or technician in accordance with local plumbing codes.
4.1 Pre-Installation Checks
- Ensure the main water supply to the toilet is turned off.
- Verify that the toilet is compatible with a 1-1/2 inch top spud inlet and 12 inch vacuum breaker.
- Inspect all components for any damage before installation.
4.2 Installation Steps (General)
- Remove Existing Flushometer: If replacing an old unit, carefully remove it, ensuring the water supply remains off.
- Install Angle Stop: Connect the provided 1-inch angle stop to the water supply line.
- Assemble Vacuum Breaker: Attach the 12-inch vacuum breaker set to the flushometer valve.
- Connect to Toilet Spud: Use the spud nut and escutcheon to securely connect the flushometer valve to the toilet's top spud inlet.
- Connect Water Supply: Connect the angle stop to the flushometer valve using the sweat solder kit as required.
- Check for Leaks: Slowly turn on the main water supply and inspect all connections for leaks. Tighten as necessary.
- Test Operation: Perform several test flushes to ensure proper function.


5. Operating Instructions
The TOTO ECOPOWER Flushometer Valve offers both touchless sensor activation and a manual override button.
5.1 Touchless Operation
The valve features an instant response sensor for hands-free, touchless operation. When a user is detected within the sensor's range and then leaves, the valve will automatically initiate a flush. The self-adjusting and time-delayed smart sensor is designed to prevent ghost flushing and ensure reliable activation.

5.2 Manual Override
A mechanical manual override flush button is provided for situations where manual activation is preferred or necessary.

5.3 ECOPOWER Technology
The ECOPOWER system harnesses the energy of running water to power the flush valve electronics. A hydroelectric turbine captures this energy, storing it in rechargeable cells to power the sensor. This eliminates the need for external electricity sources or routine battery replacements, making the unit self-sufficient and highly efficient.


6. Maintenance
The TOTO ECOPOWER Flushometer Valve is designed for low maintenance due to its self-powered system and robust internal components.
6.1 Cleaning
Clean the exterior of the flushometer valve with a soft cloth and mild, non-abrasive cleaner. Avoid harsh chemicals or abrasive pads, as these can damage the polished chrome finish.
6.2 Internal Components
The valve features a piston and solenoid mechanism, which maintains consistent flush volume across various supply pressures. It also includes a 360° debris screen piston to prevent clogs and ensure smooth operation. Regular internal cleaning is generally not required, but if performance issues arise, consult a qualified technician.


7. Troubleshooting
If you experience issues with your TOTO ECOPOWER Flushometer Valve, refer to the following common problems and solutions. For complex issues, contact TOTO customer support or a qualified technician.
| Problem | Possible Cause | Solution |
|---|---|---|
| No flush when sensor is activated | Sensor obstructed or dirty; insufficient water pressure; internal valve issue. | Clean sensor window. Check water supply valve is fully open. If problem persists, contact support. |
| Continuous flushing or ghost flushing | Sensor malfunction; debris in valve; water pressure fluctuations. | Ensure no objects are continuously in sensor range. Check for debris in the valve (requires professional service). |
| Weak or incomplete flush | Low water pressure; debris in valve; worn internal components. | Verify adequate water pressure. Inspect for debris in the 360° debris screen piston (professional service recommended). |
| Manual flush button not working | Mechanical issue with button or linkage. | Contact customer support for assistance. |
8. Warranty Information
The TOTO ECOPOWER Touchless Toilet Flushometer Valve (TET1UB32) is covered by a Manufacturer Three Year Limited Warranty. Please retain your proof of purchase for warranty claims. For full details regarding warranty terms and conditions, please refer to the official TOTO warranty documentation or contact TOTO customer support.
9. Customer Support
For technical assistance, replacement parts, or warranty inquiries, please contact TOTO customer support through their official website or the contact information provided with your product packaging. When contacting support, please have your model number (TET1UB32) and proof of purchase readily available.