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Need help?Do you have a question about the STIEBEL ELTRON DHB 21 STi and is the answer not in the manual?
General| Type | Instantaneous water heater |
|---|---|
| Power rating | 21 kW |
| Voltage | 400 V |
| Frequency | 50 Hz |
| Temperature range | 20 - 60 °C |
| Temperature setting range | 30 - 60 °C |
| Protection class | IP25 |
| Power Supply | 3-phase |
| Color | White |
| Water Connection | G 1/2 |
Provides introductory details for users and contractors regarding the appliance.
Explains safety instruction structure, symbols, keywords, and risk types.
Identifies and clarifies symbols used throughout the manual for better understanding.
Specifies that all measurements are in millimeters unless otherwise stated.
Defines the appliance's purpose for domestic hot water and its limitations.
Offers critical safety advice, including burn risks and user supervision.
Directs users to the appliance's type plate for test symbols.
Details the appliance's parts and its bare wire heating system technology.
Explains how to adjust the hot water outlet temperature using the selector.
Provides guidance on optimal settings, particularly with thermostatic valves.
Outlines procedures for cleaning, care, and routine maintenance of the appliance.
Lists common issues, their causes, and recommended solutions.
Stresses that installation must be performed by qualified contractors only.
Emphasizes using original accessories and spare parts for reliable functioning.
Mandates adherence to all applicable national and regional installation regulations.
Lists standard delivery items and optional accessories for installation.
Covers site selection and initial water installation steps before mounting.
Specifies criteria for the installation location, ensuring it is frost-free.
Details tap compatibility, pipe materials, and flow rate adjustments.
Outlines the standard process for opening the appliance and fitting the bracket.
Describes the fundamental steps involved in the standard installation process.
Details the procedure for safely connecting the appliance to the water supply.
Explains the correct method for connecting the appliance to the mains power supply.
Covers fitting the back panel and the steps for initial commissioning.
Guides through the first power-on, calibration, and functional checks.
Explains the restart sequence required after a water supply interruption.
Details the procedures for safely disconnecting and shutting down the appliance.
Introduces various alternative methods for installing the appliance.
Describes making electrical connections on finished wall surfaces.
Covers electrical connections requiring a larger conductor cross-section.
Explains how to integrate a load shedding relay for power management.
Details water installation procedures for appliances mounted on finished walls.
Guides water installation using specific fittings on finished walls.
Describes the process of fitting the appliance cover during water installation.
Details installing the back panel with threaded fittings on finished walls.
Explains using existing brackets when replacing an appliance.
Covers installation adjustments required for offset tiles.
Describes rotating the appliance cover for undersink installation needs.
Provides a guide to diagnosing and resolving common appliance faults.
Outlines draining, strainer cleaning, and general maintenance tasks.
Details the process for safely emptying the appliance of water.
Explains how to clean the strainer located in the cold water fitting.
Presents detailed technical specifications, dimensions, and connections.
Shows diagrams of appliance dimensions and connection points.
Provides the electrical wiring diagram for the appliance.
Details the Domestic Hot Water output based on various parameters.
Lists electrical resistance and conductivity for different water types.
Specifies pressure drop values for taps and pipework.
Mentions temporary load conditions that may occur during faults.
Lists suitability and certifications specific to Germany.
Presents energy consumption data compliant with EU regulations.
Summarizes all technical data, including electrical, water, and physical details.
Outlines the conditions and validity of the product guarantee.
Advises on responsible material disposal according to national regulations.
