Fothermo reheater power supply 18V suitable for 30 liter boiler

Hot water even on the darkest days with very little sunlight. The PSU reheats the water when there is not enough photovoltaic power available.
If the water temperature of the boiler falls below the set minimum temperature, the power supply unit is automatically switched on by the boiler. As a result, the water is heated via electricity from the wall socket.

Setting the minimum temperature
A minimum temperature can be set within a very short time using the buttons on the boilers. This minimum temperature can be freely configured between 5 °C and 65 °C in 5 °C steps. For example, a minimum water temperature of 35 °C can be set. If the water temperature falls below the set minimum temperature, the power supply unit is automatically switched on by the boiler. The water is heated via mains current
As soon as the set minimum temperature is reached, the reheating process is automatically stopped again.

PV power always has priority
The photovoltaic boiler always uses as much photovoltaic electricity as possible.
If the water temperature drops below the set minimum temperature while electricity is being generated by the photovoltaic modules, all photovoltaic electricity is always used first. If there is not enough electricity available from the photovoltaic modules while the water temperature is below the minimum, electricity is drawn from the grid in parallel.

The power supply unit is connected via a simple plug-in connection. Installation is intuitive. No electrician is required.

1. The power supply unit is plugged into the bottom of the boiler and into the socket.
2. The second step is to set the minimum water temperature. This is done via two buttons directly on the boiler. The configuration is very simple and is explained in detail in the supplied operating instructions.

Details

• Photovoltaic power always has priority. This keeps the electricity bill as low as possible.
• Even on the darkest days of the year.
• Automatic reheating as soon as the temperature of the water drops below a set minimum temperature.
• Installation time is less than one minute.
• Intelligent PV power detection for maximum solar yield.

Selectable variants

• 10 liter boiler: 12V power supply unit with 62W heating power
• 30 liter boiler: 18V power supply with 140W heating power
• 80 liter boiler: 24V power supply with 240W heating power

Scope of delivery

• 1x 18V power supply unit
• 1x connection and operating instructions