Installation and User Guide for Hansgrohe Locarno 04822XX0 Shower Valve Trim

Quick Guide and Safety Information

The Hansgrohe Locarno 04822XX0 is a shower valve trim designed for use with the iBox Universal Plus model 01850181 (not included). For best results, installation should be performed by a licensed, professional plumber. To prevent scald injury, the maximum output temperature of the shower mixing valve must not exceed 120°F (49°C). In Massachusetts, this limit is 112°F (44°C). Always ensure the rotational limit stop is correctly adjusted to prevent scalding.

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 (49°-60°C); Maximum 176°F (80°C).
• Flow rate: 5.5 GPM (20.8 l/min) at 44 PSI.
• Compatibility: Requires iBox Universal Plus model 01850181.

Installation Steps

1. Prepare the iBox: Ensure the iBox Universal Plus is installed. Use a 4 mm Allen wrench to open and close the service stops on the hot and cold inlets.
2. Flush the supplies: Remove the dust cover. Open the stops and allow hot and cold water to flush for at least 5 minutes to clear debris. Close the stops.
3. Install the function block: Insert the function block into the iBox and tighten the screws using a 4 mm Allen wrench.
4. Measure and cut screws: Measure the distance (X) from the front of the plaster shield to the screw-in flanges. Add 1/2 inch (11 mm) to this measurement and cut the screws to length.
5. Install trim: Install the carrier plate. Place the adapter and handle on the stem.
6. Test the valve: Turn the handle counter-clockwise to test the valve. Ensure cold water flows first and becomes warmer as the handle is turned.
7. Final assembly: Turn off the water, remove the handle and adapter. Lubricate the O-ring on the cartridge with white plumbing grease. Install the sleeve and escutcheon. Reinstall the adapter and handle, securing with the screw. Apply waterproof sealant around the plaster shield.

Adjusting the Rotational Limit Stop

To reduce the risk of scald injury, adjust the rotational limit stop if the maximum output temperature exceeds 120°F (49°C) or local plumbing codes. Pull the white rotational limit stop outward. Rotate clockwise to decrease the maximum temperature or counter-clockwise to increase it. Ensure the stop is fully retracted when finished.

Maintenance and Cleaning

Clean the showerhead if water volume decreases over time. Inspect the cartridge and check valves at least once per year. Replace the cartridge if it is dirty, worn, or leaking. Do not use abrasive cleaners, steam cleaners, or cleaning agents containing hydrochloric, formic, or acetic acid. Rinse the product with clean water after each use to prevent mineral buildup.

Troubleshooting

If the showerhead or tub spout drips for a short period after the valve is closed, this is normal clearing and does not indicate a problem. If the valve leaks constantly, the cartridge may be dirty or worn and should be replaced. If the output temperature does not match the handle markings, adjust the rotational limit stop or reverse the cartridge if hot and cold supplies are reversed.