Introduction
This manual provides detailed instructions for the installation, operation, and maintenance of the GROHE Grohsafe 3.0 Pressure Balance Rough-In Valve with Integrated Diverter (Model 35117000). This valve is designed to provide consistent water temperature and flow for shower and bath applications, featuring a convertible diverter for 2-way or 3-way functionality. Please read all instructions carefully before beginning installation or use to ensure proper function and safety.
Important Safety Information
- Always shut off the main water supply before installing or servicing the valve.
- Wear appropriate personal protective equipment, including safety glasses and gloves, during installation.
- Ensure all plumbing connections are secure and watertight to prevent leaks.
- If you are unsure about any part of the installation process, consult a qualified plumber.
- Adhere to all local plumbing codes and regulations.
Components and Features Overview
The GROHE Grohsafe 3.0 valve is engineered for ease of installation and reliable performance. Key features include:
- Flat Back Design: Allows the valve to mount flush with the cross brace for a clean installation.
- Aligned Inlets and Outlets: Designed to prevent misaligned piping and rough-in errors.
- 2-Way/3-Way Convertible Diverter: Accommodates various shower and bath configurations.
- Diverter Test Cap: Enables testing and flushing of lines without the need for the final cartridge.
- Convertible Flush Plug/Test Cap: Allows testing with air (up to 200 psi) or water (up to 300 psi) and flushing without the cartridge.
- Integral Service Stops: Facilitate easy servicing at the valve.
Installation Instructions
Proper installation is crucial for the optimal performance of your GROHE Grohsafe 3.0 valve. Follow these steps carefully:
1. Prepare the Installation Area
- Ensure the main water supply is turned off.
- Frame the shower or bath wall opening according to local building codes and the valve's dimensions.
- Mount a sturdy cross brace between the studs at the desired height for the valve.
2. Mount the Valve Body
- Position the valve body against the cross brace, ensuring the 'UP' marking on the valve is oriented correctly.
- Secure the valve body to the cross brace using appropriate fasteners through the mounting holes. The flat back design allows for flush mounting.
3. Connect Water Lines
- Connect the hot and cold water supply lines to the designated inlets on the valve body. The valve supports FIP, MNPT, FNPT, or Sweat connections.
- Connect the outlet lines to your showerhead, hand shower, or tub spout as required by your trim kit and desired configuration.
- Ensure all connections are properly sealed and tightened to prevent leaks.
4. Install Plaster Guard and Rough-In Guide
- Attach the plaster guard to the valve body. The self-aligning screw holes simplify this process.
- Use the clear rough-in guide on the plaster guard to ensure the correct rough-in depth (1 3/4" minimum to 2 3/4" maximum from the back of the valve to the finished wall).
5. Test and Flush
- Before installing the final cartridge (sold separately with trim), use the flush plugs/test caps to test the system for leaks. The valve can be tested with air (up to 200 psi) or water (up to 300 psi).
- Flush the lines thoroughly to remove any debris before installing the cartridge.
Operation
The GROHE Grohsafe 3.0 is a rough-in valve and requires a compatible GROHE trim kit (sold separately) for full operation. Once the trim kit and cartridge are installed, the valve will provide:
- Pressure Balance: Maintains a consistent water temperature even with fluctuations in hot or cold water supply pressure.
- Integrated Diverter: Allows you to switch water flow between different outlets (e.g., showerhead, hand shower, tub spout) depending on your trim kit's configuration.
Refer to your specific trim kit's instruction manual for detailed operating procedures, including temperature adjustment and diverter functionality.
Maintenance
The GROHE Grohsafe 3.0 valve is designed for long-lasting performance with minimal maintenance. However, periodic checks can help ensure its longevity:
- Leak Inspection: Periodically check for any signs of leaks around the valve body or connections. Address any leaks promptly.
- Cartridge Replacement: The valve cartridge, which is part of the trim kit, may need replacement over time due to wear or mineral buildup. Refer to your trim kit's manual for instructions on cartridge replacement.
- Service Stops: The integral service stops allow for easy isolation of the valve for maintenance without shutting off the main water supply to the entire house. Consult a plumber if you need to utilize these for servicing.
Troubleshooting
If you encounter issues with your GROHE Grohsafe 3.0 valve, consider the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| No water flow or low pressure | Main water supply off; clogged lines; faulty cartridge. | Check main water supply. Flush lines. Inspect and replace cartridge if necessary (refer to trim kit manual). |
| Water temperature inconsistent | Faulty pressure balance cartridge; incorrect temperature limit stop setting on trim kit. | Replace cartridge. Adjust temperature limit stop (refer to trim kit manual). |
| Diverter not switching outlets correctly | Diverter cartridge issue; debris in diverter mechanism. | Inspect and clean diverter cartridge. Replace diverter cartridge if damaged or worn. Ensure all parts are present and correctly installed. |
| Leaks around the valve body or connections | Loose connections; damaged O-rings or seals; cracked valve body. | Tighten connections. Inspect and replace O-rings/seals. If valve body is cracked, replacement is necessary. |
If these troubleshooting steps do not resolve the issue, contact a qualified plumber or GROHE customer support for assistance.
Specifications
Below are the technical specifications for the GROHE Grohsafe 3.0 Pressure Balance Rough-In Valve (Model 35117000):
| Feature | Detail |
|---|---|
| Material | Brass |
| Item Dimensions (L x W x H) | 3.75 x 4.84 x 9.25 inches |
| Exterior Finish | Stainless Steel |
| Inlet Connection Type | FIP or MNPT or FNPT or Sweat |
| Outlet Connection Type | FIP or MNPT or FNPT or Sweat |
| Maximum Operating Pressure | 300 Pound per Square Inch |
| Number of Ports | 3 |
| Specification Met | ADA, CSA, ETL |
| Item Weight | 1 pound |
| Installation Method | Wall Mount |
| Included Components | Installation guide |
Warranty Information
The GROHE Grohsafe 3.0 Pressure Balance Rough-In Valve is covered by a LIMITED warranty. For specific details regarding warranty coverage, terms, and conditions, please refer to the official GROHE warranty documentation provided with your product or visit the GROHE website. Keep your proof of purchase for warranty claims.
Customer Support
For further assistance, technical support, or to inquire about replacement parts, please contact GROHE customer service. You can typically find contact information on the GROHE official website or within the packaging of your product. When contacting support, please have your product model number (35117000) and proof of purchase readily available.