Introduction
This manual provides essential information for the installation, operation, and maintenance of your Kohler Anthem 39014-NA Three-Port Recessed Mechanical Thermostatic Valve. This valve is engineered to deliver consistent temperature control within your showering system, enhancing the shower experience. It features a design with three independently controllable ports, making it suitable for applications requiring up to three water outlets.
The valve is designed for use with a compatible thermostatic valve control panel trim, which includes recessed push-buttons for operation. Most components come pre-assembled to facilitate installation.
Key Features
- High-Flow Thermostatic Mixing Valve: Ensures efficient water delivery.
- Consistent Temperature Control: Mechanically controlled thermostatic mixing valve maintains a stable outlet temperature throughout the shower.
- High Flow Rate: Up to 8 gpm (30.3 lpm) at 45 psi (3.1 bar), with a maximum flow of 7 gpm (26.5 lpm) from a single outlet.
- Connection Sizes: Features 3/4" female NPT inlet connections and 1/2" female NPT outlet connections.
- Service Stops: Includes integral filters for ease of maintenance.
- Antiscald Protection: Built-in safety feature to prevent scalding.
- Adjustable High-Temperature Limit Stop: Allows control over the maximum water temperature for safety.
- Adjustable Comfort Setting: Preset at approximately 104°F (40°C) for user convenience.
- Optional Flow Restrictor: Can be installed to limit total flow to 1.75 gpm (6.6 lpm) for water conservation or CEC compliance.
Setup and Installation
Installation of the Kohler Anthem 39014-NA thermostatic valve requires plumbing expertise. It is highly recommended that installation be performed by a qualified professional to ensure proper function and compliance with local plumbing codes.
Pre-Installation Checks:
- Ensure all necessary plumbing lines (hot and cold water inlets, and up to three outlets) are prepared according to the valve's specifications.
- Verify that the rough-in dimensions in the wall cavity are adequate for the recessed valve body.
- Confirm that the water supply pressure meets the recommended operating pressure of 45 psi (3.1 bar).
Connection Guidelines:
- Connect the hot and cold water supply lines to the 3/4" female NPT inlet connections.
- Connect the desired shower outlets (e.g., showerhead, handshower, body sprays) to the 1/2" female NPT outlet connections. The valve supports up to three independent outlets.
- Ensure all threaded connections are properly sealed to prevent leaks.
Flow Restrictor Installation (Optional):
If water conservation or CEC compliance is required, the optional flow restrictor can be installed. Refer to the detailed instructions provided with the flow restrictor for correct placement within the valve assembly.
Image: Kohler Anthem 39014-NA Three-Port Recessed Mechanical Thermostatic Valve. This image shows the main valve body with its various connection points.
Operating Instructions
The Kohler Anthem 39014-NA valve works in conjunction with a compatible control panel trim (sold separately) to provide precise control over your showering experience.
Temperature Control:
- The thermostatic valve maintains a consistent water temperature regardless of pressure fluctuations in the hot or cold water supply.
- Adjust the temperature using the dedicated temperature control on your trim panel. The adjustable comfort setting is preset at approximately 104°F (40°C).
- The integrated adjustable high-temperature limit stop prevents accidental setting of excessively hot water. This limit can be adjusted by a professional during installation or maintenance.
Flow Control and Outlet Selection:
- The valve features three independently controllable ports. Each port can be activated or deactivated via the corresponding controls on your trim panel.
- You can operate one, two, or all three outlets simultaneously, depending on your trim panel's capabilities and desired shower experience.
- The maximum flow rate from a single outlet is 7 gpm (26.5 lpm).
Maintenance
Regular maintenance ensures the longevity and optimal performance of your thermostatic valve.
Cleaning:
- Clean the exterior of the valve trim with a soft, damp cloth. Avoid abrasive cleaners, solvents, or harsh chemicals, as these can damage the finish.
- For hard water spots, use a solution of mild soap and water, then rinse thoroughly and dry.
Filter Maintenance:
- The valve includes service stops with integral filters. If you experience reduced water flow, these filters may need cleaning.
- Caution: Maintenance involving internal components should only be performed by a qualified plumber. Shut off the main water supply before attempting any internal maintenance.
Troubleshooting
This section addresses common issues you might encounter with your thermostatic valve.
| Problem | Possible Cause | Solution |
|---|---|---|
| Inconsistent water temperature | Fluctuations in hot/cold water supply pressure; debris in thermostatic cartridge. | Ensure stable water pressure. If problem persists, contact a plumber to inspect/clean the thermostatic cartridge. |
| Low water flow from outlets | Clogged integral filters; optional flow restrictor installed; debris in showerheads/body sprays. | Clean integral filters at service stops (professional recommended). Check if the optional flow restrictor is installed and if it meets your needs. Clean showerhead/body spray nozzles. |
| Water is too hot or too cold | High-temperature limit stop incorrectly set; thermostatic cartridge malfunction. | Have a plumber adjust the high-temperature limit stop. If issue persists, the thermostatic cartridge may need replacement. |
| Antiscald protection activates frequently | Significant pressure drop in cold water supply. | Check cold water supply pressure. Avoid simultaneous use of other high-demand cold water fixtures. |
Specifications
| Specification | Detail |
|---|---|
| Model Number | 39014-NA |
| Brand | Kohler |
| Valve Type | Thermostatic Valve |
| Material | Brass |
| Number of Ports | 3 |
| Inlet Connections | 3/4" Female NPT |
| Outlet Connections | 1/2" Female NPT |
| Maximum Operating Pressure | 45 PSI (3.1 bar) |
| Flow Rate (Total) | Up to 8 gpm (30.3 lpm) at 45 psi |
| Flow Rate (Single Outlet Max) | 7 gpm (26.5 lpm) |
| Item Dimensions (L x W x H) | 6.1 x 13.96 x 4.88 inches |
| Item Weight | 1 Pound |
| Certifications | ASME, ANSI, NSF |
| UPC | 195711260758 |
Warranty and Support
The manufacturer states that this product comes with No Warranty. For any product inquiries, technical assistance, or to explore other Kohler products, please visit the official Kohler Store.
