SBB 400-1 Plus - Boiler STIEBEL ELTRON - Free user manual and instructions
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| Brand | Stiebel Eltron |
| Model | SBB 400-1 Plus |
| Product type | Electric storage boiler |
| Dimensions (H x W x D) | 1200 x 600 x 600 mm |
| Weight | 80 kg |
| Power supply | 400 V three-phase |
| Rated power | 24 kW |
| Tank capacity | 400 L |
| Maximum operating temperature | 85 °C |
| Maximum working pressure | 6 bar |
| Efficiency | 98 % |
| Installation type | Wall-mounted or floor-standing |
| Main functions | Central heating and domestic hot water production |
| Control | Electronic thermostat with programming |
| Frost protection | Yes |
| Safety | Safety valve, temperature limiter, IPX4 protection |
| Maintenance and cleaning | Annual drain, magnesium anode check every 2 years |
| Spare parts and repairability | Available from the manufacturer and authorized dealers, repairability index 8.3/10 |
| General information | Made in Germany, 2-year warranty |
Frequently Asked Questions - SBB 400-1 Plus STIEBEL ELTRON
What is the required electrical power for installing the SBB 400-1 Plus?
The device requires a three-phase 400 V supply with a circuit breaker suitable for 24 kW. It is recommended to call a qualified electrician.
How to drain the hot water tank?
Turn off the power supply and water inlet. Open the drain valve located at the bottom of the unit. Let the water drain completely before performing any maintenance.
What should I do if the water does not heat up?
Check that the circuit breaker has not tripped and that the thermostat is set correctly. If the problem persists, the thermostat or heating element may be faulty and require professional intervention.
How often should the magnesium anode be replaced?
The magnesium anode should be checked every 2 years and replaced if necessary to protect the tank from corrosion.
What is the ideal set temperature?
A temperature of 55 to 60 °C is recommended for a good balance between comfort and energy savings, while limiting the risk of burns and legionella growth.
Can I program the heating schedules?
Yes, the SBB 400-1 Plus has an electronic programmer that allows you to set time slots for heating and hot water, optimizing energy consumption.
How to bleed air from the heating circuit?
Use the manual bleed valves on the radiators and on the boiler. Open them until water flows without air bubbles. Then close them.
What does the flashing red light mean?
A flashing red light indicates a fault or alarm. Check the manual for the corresponding error code and contact customer service if necessary.
What water pressure should the pressure gauge show?
The normal operating pressure is between 1 and 2 bar. If it is below 1 bar, add water to the circuit via the filling valve.
Can the appliance be installed outdoors?
No, the SBB 400-1 Plus is designed for indoor installation in a dry, frost-free room. Outdoor installation is not recommended and would void the warranty.
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USER MANUAL SBB 400-1 Plus STIEBEL ELTRON
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Product information
Brand : STIEBEL ELTRON
Model : SBB 400-1 Plus
Category : Boiler