Installation Guide for AXOR Starck 10751XX1 Shower Mixer

Quick guide from the manual

The AXOR Starck 10751XX1 is a thermostatic shower mixer trim. Important: This unit requires the rough valve model 10750181 (not included) for installation. Hansgrohe strongly recommends that installation be performed by a licensed, professional plumber to ensure proper function and safety. Always turn off the main water supply before beginning installation.

Technical specifications

• Water pressure: Recommended 15-75 PSI (0.1-0.5 MPa); Maximum 145 PSI (1 MPa).
• Hot water temperature: Recommended 120°-140°F (48°-60°C); Maximum 158°F (70°C).
• Flow rate: 5.0 GPM (18.9 L/min) at 44 PSI (0.3 MPa).
• Compatibility: Designed for use with showerheads rated at 1.1 GPM (4.2 L/min) or higher.

Installation steps

1. Preparation: Turn off the main water supply. Cut the plaster shields so they extend 1/16" (1 mm) outside the finished wall surface.
2. Sealing: Seal the wall around the plaster shields using waterproof sealant. Install the slip connectors.
3. Connectors: Cut the slip connector so it extends 3/8" - 1/2" (10-13 mm) outside the finished wall. Remove the insert, plug, and check valve covers from the thermostatic mixer.
4. Spindles: Install the extension spindles. Cut them so they extend 3/4" - 7/8" (20-23 mm) outside the finished wall. Install the check valves and covers.
5. Cartridge: Install the thermostatic cartridge using a 24 mm wrench (11 ft-lb / 15 Nm).
6. Volume Control: Push the extension spindles into the volume control sleeves.
7. Trim Plate: Push the trim plate against the wall. Install the volume control sleeves, snap connectors, and handles. Tighten screws and install o-rings and screw covers. Install the thermostatic mixer sleeve, stop ring, stem extension, and handle.
8. Finishing: Apply a dab of waterproof sealant on the wall at the grout joints.

Setting the high temperature limit

To adjust the maximum temperature:

• Remove the handle and the temperature limit stop ring.
• Adjust the stop ring to the desired position.
• Verify the temperature with a thermometer while running the water.
• Reinstall the stop ring and handle.

Cleaning and maintenance

To maintain the finish and functionality:

• Clean the product when necessary to prevent mineral scale and soap residue buildup.
• Use a soft cloth or sponge. Do not spray cleaners directly onto the product.
• Avoid cleaners containing hydrochloric acid, formic acid, lye, or acetic acid.
• Do not use abrasive powders, pads, brushes, steam cleaners, or "no-rinse" agents.
• Rinse thoroughly with clear water after cleaning and polish dry.

Troubleshooting

• Insufficient water: Check supply pressure, clean the thermostat cartridge filter, clean the screen washer between the hand shower and hose, or clean the check valve filters.
• Crossflow (hot/cold mixing when closed): Clean or replace the check valves.
• Temperature regulation not possible: Clean or replace the thermostat cartridge. Ensure the rough valve is correctly connected (cold right, hot left) and not installed with a 180° rotation.
• Safety stop button not operating: Clean or replace the spring and/or button.