Introduction
This manual provides comprehensive instructions for the installation, operation, and maintenance of your Hansgrohe 15310180 RainSelect 2 Outlets Basic Set. Please read these instructions carefully before beginning installation to ensure proper function and safety. This basic set is designed for concealed installation of a RainSelect thermostatic mixer with two outlets, providing a foundation for your shower system.
Safety Information
- Installation must be carried out by qualified personnel in accordance with local plumbing and building codes.
- Ensure the main water supply is turned off before commencing any installation work.
- Protect the product from frost.
- Use only genuine Hansgrohe spare parts for repairs.
- Avoid using abrasive cleaners or solvents on the product surfaces.
Package Contents
Verify that all components are present before installation:
- Hansgrohe RainSelect Basic Set for 2 Outlets
- Assembly Instruction Manual
- Sealing Gaiter

Figure 1: The Hansgrohe 15310180 RainSelect 2 Outlets Basic Set. This image displays the main component of the basic set, which is installed concealed within the wall, featuring connection points for water supply and outlets.
Setup and Installation
The Hansgrohe RainSelect Basic Set is designed for concealed installation. Adhere to the following guidelines:
- Concealed Installation: This basic set is intended for safe concealed installation within the wall.
- Orientation: Install the unit in a horizontal position.
- Installation Depth: The required installation depth is between 87 mm and 122 mm.
- Connections: The connection size is DN15/DN20 with Rp ¾ connection threads. A sealing gaiter is included to ensure watertight connections.
- Water Supply: Ensure hot and cold water lines are correctly identified and connected to the appropriate inlets on the basic set.
- Outlet Connections: Connect the two desired shower outlets (e.g., overhead shower, hand shower) to the designated ports.

Figure 2: Technical drawing showing the dimensions and connection points of the Hansgrohe RainSelect Basic Set. This diagram provides critical measurements for precise installation within the wall cavity.

Figure 3: Installation diagram illustrating the concealed mounting of the basic set and connections to a shower system with two outlets. This visual guide helps in understanding the plumbing layout.

Figure 4: Alternative installation diagram for the Hansgrohe RainSelect Basic Set, showing another configuration for connecting to a shower system. This provides additional context for various setup scenarios.
Operation
The Hansgrohe 15310180 RainSelect Basic Set serves as the core component for a RainSelect thermostatic mixer. Once the trim set (sold separately) is installed, the operation will involve:
- Temperature Control: The thermostatic mixer (not included in this basic set) will allow precise control over water temperature.
- Outlet Selection: The RainSelect system enables easy switching between the two connected water outlets (e.g., overhead shower, hand shower, bath filler) via intuitive buttons or selectors on the trim set.
- Flow Control: Adjust water flow as desired through the corresponding controls on the trim set.
Maintenance
Proper maintenance ensures the longevity and optimal performance of your Hansgrohe product:
- Cleaning: Clean the visible parts of the installed system regularly with a soft cloth and a mild, non-abrasive cleaning agent. Avoid cleaners containing alcohol, hydrochloric acid, formic acid, acetic acid, or phosphoric acid.
- Descaling: If hard water is an issue, use a descaling agent specifically designed for bathroom fixtures, following the manufacturer's instructions.
- Inspection: Periodically check for any leaks or unusual operation. Address any issues promptly.
Troubleshooting
Should you encounter issues, consider the following common solutions:
- Reduced Water Flow: Check for blockages in the water supply lines or aerators (if applicable to the trim set). Ensure stopcocks are fully open.
- Temperature Fluctuations: Verify that hot and cold water supplies are stable. If using a thermostatic mixer, ensure it is correctly calibrated.
- Leaks: Turn off the main water supply immediately. Check all connections for proper sealing. If a sealing gaiter is damaged, replace it.
- No Water from an Outlet: Ensure the outlet selection mechanism on the trim set is functioning correctly and not stuck.
For persistent problems, contact a qualified plumber or Hansgrohe customer support.
Specifications
| Brand: | hansgrohe |
| Model Name: | Hansgrohe RainSelect Basic Set for 2 Outlets |
| Part Number: | 15310180 |
| Recommended Uses: | Bathroom |
| Mounting Type: | Wall Mount (Concealed) |
| Finish Type: | Polished (for visible components, basic set is concealed) |
| Material: | Brass |
| Number of Handles: | 2 (referring to outlets, not physical handles on basic set) |
| Included Components: | Assembly instruction, basic set, seal |
| Installation Depth: | 87-122 mm |
| Connection Size: | DN15/DN20, Rp ¾ thread |
| Item Weight: | 4.72 Kilograms (10.38 pounds) |
| Product Dimensions: | 5.2 x 19.84 x 3.23 inches |
| Special Feature: | Sound insulation (reduces water sound) |
Warranty and Support
Warranty: This Hansgrohe product comes with a 5-year warranty, covering manufacturing defects and material faults. Please retain your proof of purchase for warranty claims.
Support: For technical assistance, spare parts, or warranty inquiries, please visit the official Hansgrohe website or contact their customer service department. Contact information can typically be found on the Hansgrohe website or on your purchase documentation.
You can find more information and support at the Hansgrohe Store on Amazon.





