Product Overview & Application Area
The heating element with app, 3.0 kW SELFA Smart Heater, is an electric screw-in heating element for water heating in suitable hot water tanks. It is intended for open and closed enamelled storage tanks and, depending on the material version, can also be used in suitable stainless steel tanks.
The 3.0 kW version is the most powerful variant within the documented SELFA Smart Heater series and, according to the type table, is used for tanks with a minimum tank volume of 120 litres. It is suitable for applications where hot water is to be generated electrically, reheated or supported on demand.
Technology & Equipment
The SELFA Smart Heater works with tubular heating elements and is operated with a single-phase voltage of 230 V. The electronic thermostat has a wireless communication module and can be operated directly on the display module or via the SELFA SMART HEATER app.
The equipment includes six normal operating modes and two safety programmes. These include manual operation, ECO operation, SMART operation, schedule operation, absence operation and turbo/boost operation. The anti-legionella function and frost protection run as safety programmes in the background.
Everyday Benefits
The app control enables flexible operation via Android and iOS mobile devices. Temperature, operating mode and time programmes can thus be adapted to the actual hot water demand.
In ECO operation, the water temperature is constantly maintained at 55 °C. SMART operation records usage behaviour and subsequently uses this data for more demand-based hot water generation. Turbo/boost operation can be used when a higher hot water temperature is required at short notice.
System Integration & Compatibility
The heating element is screwed into a suitable socket of the storage tank. Depending on the model version, mounting threads G 5/4" or G 6/4" are available.
When selecting, the thread size, material version, tank size, installation position, and tank material must be considered. Copper versions are not intended for stainless steel tanks; for certain stainless steel or titanium anode systems, suitable stainless steel or Incoloy versions should be selected.
Technical data at a glance
The most important technical data of the SELFA Smart Heater in the 3.0 kW version at a glance.
| Rated power | 3.0 kW |
| Power consumption | 3000 W |
| Voltage | 230 V |
| Phases | 1 phase |
| Connection type | 230 V socket with protective contact |
| Max. operating pressure | 10 bar |
| Connection size | G 5/4" or G 6/4" depending on version |
| Max. temperature | 75 °C |
| Electronic control | Yes |
Installation
The heating element is screwed into the designated connection of the storage tank. For the 3.0 kW version, the maximum immersion depth is 360 mm; additionally, the non-heating zone of approx. 65 mm must be taken into account.
The heating element must be positioned completely below the water level. For horizontal installation, the permitted orientation must be observed according to the instructions so that the temperature evaluation can work correctly.
Notes
Before connecting to the 230 V socket, the tank must be filled with water and the heating element must be fully submerged in the water. The socket must have a protective contact.
In the case of hard water, limescale deposits should be removed regularly with suitable agents, as deposits can impair heat transfer and cause damage. Mechanical descaling is not intended.
Scope of delivery
- SELFA Smart Heater heating element 3.0 kW