1. Introduction
This manual provides essential information for the safe installation, operation, and maintenance of your IMEX GTA052/NG ASSEN Built-in Telescopic Shower Set. Please read these instructions thoroughly before installation and retain them for future reference. This shower set features a modern matte black finish and is designed for concealed installation, offering a sleek and minimalist aesthetic to your bathroom.
2. Safety Information
- Professional Installation Recommended: Installation of this built-in shower system requires plumbing expertise. It is highly recommended that a qualified professional plumber performs the installation to ensure proper function and prevent damage.
- Water Supply: Ensure the main water supply is turned off before commencing any installation or maintenance work.
- Water Pressure: Verify that your home's water pressure is within the recommended range for shower systems to ensure optimal performance and prevent damage.
- Hot Water Safety: Exercise caution when adjusting hot water temperatures to prevent scalding. Always test water temperature before use.
- Component Integrity: Inspect all components for damage before installation. Do not install any damaged parts.
- Cleaning: Use only mild, non-abrasive cleaners specifically designed for matte black finishes. Harsh chemicals can damage the surface.
3. Package Contents
Please verify that all components are present and undamaged before beginning installation.
- Built-in Shower Mixer Unit (with 1 handle)
- Overhead Shower Head (Round, Matte Black)
- Hand Shower with Hose (Matte Black)
- Wall Outlet and Holder for Hand Shower (Matte Black)
- Mounting Hardware and Seals
- Instruction Manual
4. Setup and Installation
This section provides a general overview of the installation process. Specific details may vary based on your bathroom's plumbing configuration. Always consult a professional plumber for installation.
4.1. Tools Required (Typical)
- Adjustable Wrench
- Screwdriver Set
- Drill
- Measuring Tape
- Level
- Sealant/Teflon Tape
4.2. Pre-Installation Steps
- Turn off Water Supply: Locate and turn off the main water supply to your bathroom.
- Clear Work Area: Ensure the installation area is clean, dry, and free from obstructions.
- Inspect Components: Unpack all parts and check for any manufacturing defects or shipping damage.
4.3. Installation Procedure (General)
- Prepare Wall Cavity: For built-in systems, a suitable wall cavity must be prepared to house the mixer unit. Ensure adequate depth and space for plumbing connections.
- Install Mixer Unit: Secure the built-in mixer unit within the wall cavity according to the manufacturer's guidelines, ensuring it is level and properly aligned with the finished wall surface. Connect hot and cold water lines.
- Connect Outlets: Connect the water outlets from the mixer unit to the overhead shower arm and the hand shower wall outlet. Ensure all connections are watertight using appropriate seals and Teflon tape.
- Install Overhead Shower: Mount the overhead shower arm to the wall and attach the overhead shower head.
- Install Hand Shower Components: Secure the hand shower wall outlet and holder. Connect the hand shower hose to the wall outlet and the hand shower.
- Test for Leaks: Once all components are installed, slowly turn on the main water supply and carefully check all connections for leaks. Rectify any leaks immediately.
- Final Assembly: Install any decorative trim plates or escutcheons over the mixer unit and wall outlets.

Image 1: The hand shower and control knobs of the IMEX GTA052/NG ASSEN Built-in Shower Set. This image shows the matte black finish and the design of the water flow and temperature controls, along with the hand shower unit.

Image 2: The overhead shower head of the IMEX GTA052/NG ASSEN Built-in Shower Set. This image highlights the round design and the matte black finish of the main shower head, designed for a rainfall effect.
5. Operating Instructions
Your IMEX GTA052/NG ASSEN shower set is designed for intuitive operation.
- Water Flow and Temperature Control: The single handle controls both water flow and temperature.
- Turn the handle to the left or right to adjust the water temperature (typically cold to hot).
- Pull the handle outwards to increase water flow, and push it inwards to decrease or stop the flow.
- Diverter Function: The smaller knob (or a specific position on the main handle, depending on the exact model) acts as a diverter. Rotate or pull this knob to switch water flow between the overhead shower and the hand shower.
- Hand Shower Use: Remove the hand shower from its holder for targeted rinsing. Return it to the holder when finished.

Image 3: The complete IMEX GTA052/NG ASSEN Built-in Shower System installed in a modern bathroom setting. This image provides a visual context of the shower set's appearance when fully installed, showcasing both the overhead and hand shower components.
6. Maintenance
Regular cleaning and maintenance will ensure the longevity and optimal performance of your shower set.
6.1. Cleaning the Finish
- Matte Black Finish: The matte black finish is durable but requires gentle care. Use a soft cloth and mild soap and water solution for regular cleaning.
- Avoid Harsh Cleaners: Do not use abrasive cleaners, scouring pads, ammonia-based cleaners, or any products containing bleach, alcohol, or harsh acids. These can damage the finish and void your warranty.
- Rinse and Dry: After cleaning, rinse thoroughly with clean water and dry with a soft cloth to prevent water spots.
6.2. Descaling Shower Heads
- Silicone Nozzles: Many shower heads feature silicone nozzles that can be easily cleaned by gently rubbing them with your finger to dislodge limescale deposits.
- Deeper Cleaning: For more stubborn limescale, remove the shower head (if detachable) and soak it in a solution of white vinegar and water for a few hours, then scrub gently with a soft brush. Rinse thoroughly before reattaching.
7. Troubleshooting
Before contacting customer support, please refer to the following common issues and their solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Low Water Pressure |
|
|
| Water Leaks from Connections |
|
|
| Inconsistent Water Temperature |
|
|
8. Specifications
| Feature | Detail |
|---|---|
| Brand | IMEX |
| Model Number | GTA052/NG |
| Color | Matte Black |
| Finish Type | Painted |
| Number of Handles | 1 |
| Handle Material | Metal |
| Item Weight | 1 Kilogram |
| Mounting Type | Deck Mount (Note: This specification from the source might be a misclassification for a built-in shower. Built-in implies wall mount. Please verify with product documentation.) |
| Installation Type | Deck Mount (Note: This specification from the source might be a misclassification for a built-in shower. Built-in implies wall mount. Please verify with product documentation.) |
Note: Specifications are subject to change without notice. Please refer to the product packaging or manufacturer's website for the most up-to-date information. The "Deck Mount" specification appears to be a potential discrepancy for a "Built-in Telescopic Shower Set"; typically, built-in systems are wall-mounted. Professional verification is recommended.
9. Warranty and Support
IMEX products are manufactured to high-quality standards. For specific warranty terms and conditions, please refer to the warranty card included with your product or visit the official IMEX website. In case of any issues or for technical assistance, please contact IMEX customer support directly. Ensure you have your product model number (GTA052/NG) and proof of purchase available when contacting support.
For further assistance, please visit the official IMEX website or contact their customer service department.