Plumbing / Showers & Tubs
Installation and User Manual for Hansgrohe 16820XXX Thermostatic Shower Mixer
Quick guide for the Hansgrohe 16820XXX thermostatic shower mixer. Includes installation steps, safety instructions, temperature adjustment, maintenance, and troubleshooting.
Table of contents
Manual images
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This manual provides essential instructions for the installation, operation, and maintenance of the Hansgrohe thermostatic shower mixer. Key procedures include ensuring equal pressure between hot and cold supplies, performing a temperature adjustment after installation, and regular maintenance of the non-return valves and filters.
Safety Notes
- Wear gloves during installation to prevent crushing and cutting injuries.
- The shower system must only be used for bathing, hygienic, and body cleansing purposes.
- Children and adults with physical, mental, or sensory impairments must not use the shower system without proper supervision.
- Persons under the influence of alcohol or drugs are prohibited from using the shower system.
- Large pressure differences between hot and cold water supplies must be balanced.
Installation Instructions
The fitting must be installed, flushed, and tested according to valid norms. Do not use silicone containing acetic acid during installation.
Technical Data
- Operating pressure: max. 1 MPa
- Recommended operating pressure: 0.1 – 0.5 MPa
- Test pressure: 1.6 MPa
- Hot water temperature: max. 80°C
- Recommended hot water temperature: 65°C
- Flow rate at 0.3 MPa: approx. 26 l/min
- Equipped with non-return valves and anti-pollution function.
Adjustment
After installation, the output temperature of the thermostat must be checked. A correction is necessary if the temperature measured at the output differs from the temperature set on the thermostat.
Maintenance
To guarantee the smooth running of the thermostat, it is necessary from time to time to turn the thermostat from total hot to total cold. The non-return valves must be checked regularly according to DIN EN 1717 in accordance with national or regional regulations (at least once a year). Also, check the filters situated on the MTC-thermoelement (A).
Troubleshooting
If you experience issues such as insufficient water, crossflow, or temperature regulation problems, refer to the troubleshooting section for specific cleaning and maintenance steps, such as cleaning filters or adjusting the function block.
Manufacturer information
Hansgrohe SE
Practical help
Common problems
Insufficient water
Check supply pressure, clean regulator filter, and clean shower filter seal.
Crossflow (hot water forced into cold water pipe or vice versa)
Clean or replace non-return valves.
Spout temperature does not correspond with temperature set
Adjust thermostat and increase hot water temperature to 42°C - 65°C.
Temperature regulation not possible
Clean or replace temperature regulator; check if basic body is installed correctly (180° rotation).
Diverter stiff or leaking
Replace cartridge or clean valve seat.
Before use
- Wear gloves during installation
- Flush pipes before installation
- Check for equal pressure between hot and cold supplies
- Verify hot water supply is activated
- Check maximum temperature at the take-off point
Specs in practice
- Operating pressure
- Max 1 MPa (10 bar = 147 PSI)
- Recommended operating pressure
- 0.1 – 0.5 MPa
- Hot water temperature
- Max 80°C (Recommended 65°C)
Images and diagrams
- Installation steps show the assembly of the basic body and trim set.
- Maintenance diagrams illustrate how to access and clean the MTC-thermoelement and non-return valves.
- Adjustment diagrams show how to calibrate the temperature using the safety function.
Model compatibility
- Compatible with various Hansgrohe models including Starck, Montreux, Carlton, Citterio, and others.
- Requires standard plumbing connections.
Manual page author
Michael Turner
Technical manual editor
Reviews PDF manuals for structure, safety notes, and practical product details so readers can find the right information quickly.