Stiebel Eltron 20 Trend
Stiebel Eltron Tempra 20 Trend Tankless Water Heater User Manual
Model: 20 Trend
Introduction
The Stiebel Eltron Tempra 20 Trend is an advanced electric tankless water heater designed to provide continuous, on-demand hot water for your entire home. This unit features intelligent self-modulating technology to optimize energy consumption and a digital display for precise temperature control. Its compact design allows for space-saving installation without the need for venting. This manual provides essential information for the safe and efficient operation, installation, and maintenance of your Tempra 20 Trend water heater.
Important Safety Information
Please read and understand all safety instructions before installing, operating, or performing maintenance on this appliance. Failure to follow these instructions could result in property damage, serious injury, or death.
- Installation must be performed by a qualified electrician and plumber in accordance with all national, state, and local electrical and plumbing codes.
- Ensure the main power supply is disconnected before performing any work on the unit.
- Do not operate the water heater if it is damaged or malfunctioning.
- This appliance is for indoor use only.
- Maintain proper clearances around the unit as specified in the installation guide.
- Do not block or restrict airflow to the unit.
- Regular maintenance, including descaling, is crucial for optimal performance and longevity.
Setup and Installation
The Tempra 20 Trend water heater is designed for wall mounting. Proper electrical and plumbing connections are critical for safe and efficient operation. Refer to the detailed installation instructions provided with your unit for specific wiring diagrams and plumbing configurations.
Image: The Stiebel Eltron Tempra 20 Trend tankless water heater mounted on a wall in a utility space, showing its compact size and typical installation setup with water lines connected below.
Image: An internal view of the Stiebel Eltron Tempra water heater, highlighting key components such as the solid copper heating system, flow sensor, wiring block, inlet temperature sensor, electronic control module, hot water outlet, and cold water inlet with filter screen. Labels point to each component for identification.
Sizing and Electrical Requirements
The Tempra 20 Trend model is rated at 19.2 kW and operates on 240V. It requires a minimum recommended electrical service of 125 Amps. Consult the sizing guide to ensure the model is appropriate for your household's hot water demands and climate.
Image: A comprehensive sizing guide for Stiebel Eltron Tempra and Tempra Plus tankless electric water heaters. It includes a map of the U.S. showing ground water temperatures, flow rate charts for various models (12, 15, 20, 24, 29, 36 kW) based on ground water temperature, and a table detailing voltage, power, breaker, and copper wire requirements for each model. The Tempra 20 Trend is highlighted with 240V, 19.2 kW, 2 x 40 A DP breaker, and 2 x 8 AWG copper wire.
Energy Efficiency
The Tempra 20 Trend is designed for high efficiency, utilizing self-modulating technology to heat water only when needed, reducing standby energy losses common with traditional tank heaters.
Image: The U.S. Government EnergyGuide label for the Stiebel Eltron Tempra 20 Trend tankless electric water heater. It indicates an Energy Factor of 0.99 and notes that estimated yearly operating cost and energy use depend on utility rates and usage, with no energy use range existing for tankless electric water heaters.
Operating Instructions
The Tempra 20 Trend features a digital temperature display and simple controls for setting your desired hot water temperature.
Image: A direct front view of the Stiebel Eltron Tempra Trend tankless water heater, showcasing its clean white design and the central control panel with a digital temperature display, a large rotary knob for temperature adjustment, and indicator lights. The display shows "120°F".
Setting Temperature
Use the rotary knob on the front panel to adjust the desired output water temperature. The digital display will show the current temperature setting. The Tempra 20 Trend offers an output water temperature range of 68°F to 140°F (20°C to 60°C).
- 68-95°F (20-35°C): Lower temperature range, suitable for handwashing or specific applications.
- 95-115°F (35-45°C): Common temperature range for general household use, such as showering.
- 115-140°F (45-60°C): Higher temperature range, often used for dishwashers or other appliances requiring hotter water.
The unit will automatically modulate its heating elements to maintain the set temperature, ensuring consistent hot water flow.
Maintenance
Regular maintenance is essential to ensure the long-term performance and efficiency of your Stiebel Eltron Tempra 20 Trend water heater. The primary maintenance task for tankless water heaters is descaling.
Descaling
Over time, mineral deposits (scale) can build up inside the heating elements, especially in areas with hard water. This can reduce efficiency and flow rate. Annual descaling is recommended to remove these deposits. If service valves were installed during the initial setup, this process is simplified.
Procedure (General Steps - Consult full manual for detailed instructions):
- Turn off the power supply to the water heater at the circuit breaker.
- Close the inlet and outlet service valves to isolate the unit from the main water supply.
- Connect a descaling pump and hoses to the service ports.
- Circulate a descaling solution (e.g., white vinegar or a commercial descaling agent) through the unit for the recommended duration.
- Flush the unit thoroughly with clean water to remove all descaling solution and loosened deposits.
- Reconnect the water lines, open the service valves, and restore power.
- Check for leaks and ensure proper operation.
For areas with very hard water, more frequent descaling may be necessary. Consider installing a water softening system to reduce mineral buildup.
Troubleshooting
This section provides solutions to common issues you might encounter with your Tempra 20 Trend water heater. For problems not listed here or if issues persist, contact qualified service personnel.
| Problem | Possible Cause | Solution |
|---|---|---|
| No hot water or insufficient hot water. |
|
|
| Water is not hot enough. |
|
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| Unit displays an error code. | Specific error condition. | Refer to the full product manual for a list of error codes and their corresponding solutions. If unavailable, contact Stiebel Eltron support. |
Specifications
Key technical specifications for the Stiebel Eltron Tempra 20 Trend tankless water heater:
- Brand: Stiebel Eltron
- Model: Tempra 20 Trend
- Product Dimensions (W x H x D): 16.63" x 14.5" x 4-5/8"
- Color: White
- Wattage: 19.2 KW
- Voltage: 240 Volts
- Minimum Recommended Electric Service: 125 A
- Maximum Flow Rate: 2.01 Gallons Per Minute (GPM) (Note: Actual hot water output varies with ground water temperature and flow rate, refer to sizing guide for detailed performance.)
- Output Water Temperature Range: 68°F to 140°F (20°C to 60°C)
- Heat Output: 19.2 Kilowatts
- Efficiency: High Efficiency (Energy Factor 0.99)
- Maximum Operating Pressure: 150 PSI
- Mounting Type: Wall
- Item Weight: 16.1 pounds
- Certifications: ANSI, CSA, NSF, UL
Warranty and Support
Stiebel Eltron stands behind the quality and reliability of its products. The Tempra 20 Trend tankless water heater includes the following warranties:
- 7-Year Leakage Warranty
- 3-Year Parts Warranty
To activate the standard warranty or to be eligible for an extended warranty, you must register your product within 90 days of purchase on the Stiebel Eltron website. For warranty claims, technical support, or any questions concerning the registration process, please contact Stiebel Eltron USA at 800.582.8423 or visit their official website.
For more information and support, visit the Stiebel Eltron Store on Amazon.