Use the numbers on the picture to reference the internal components of the Stiebel Eltron water heater with the description of each component below. While the model pictured is a Tempra 24, all models share the same components. The difference between the various models is determined by the number and size of the heating modules.
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Electronic Control Module
Sophisticated microprocessor-controlled electronics adjust the power output of the heating elements based on flow rate and incoming water temperature to precisely regulate the output water temp.
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Heating Module
The muscle of the system! A series of very high output heating modules (up to 3, depending on model) are used to heat the water as it passes through the heating chambers of the water heater. The Heating chambers are manufactured with copper - no cheap plastics here!
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Flow Sensors
A sophisticated flow rate sensor delivers important data to the microprocessor on a continuous basis - this data is used by the microprocessor to calculate the power level of the heating modules that is necessary to heat the water to the set temperature.
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Safety Thermal cut-off
Safety first! Each heating element is protected by thermal limit switch, a back-up safety feature that will automatically turn off the heating module if a potentially unsafe output water temperature is reached. This reduces the risk of scalding injuries for children and the elderly, and protects the unit from damage if the microprocessor-based thermostatic control fails.
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Digital Display
Set it and forget it - use the simple dial control to raise or lower the temperature setting. A digital display indicates the current temperature setting. The temperature can be set at any level between 86F (30C) and 125F (52C). Convenient power-on indicator light.
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Temperature Sensors
Working in conjunction with the flow sensor, a series of temperature sensors deliver important data to the microprocessor on a continuous basis so that the unit can acurately maintain the set output water temperature.
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Wiring Block
Convenient terminal blocks are provided to ensure a quick, simple, and safe installation.
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Inlet Water Filter
The inlet water pipe includes a small screen filter that ensures that no debris is able to enter the system. This filter should be periodically cleaned for optimal flow performance. In most cases, this need only be done once every few years, but the exact frequency will depend on your water quality.
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