Nexol aurinkosähköinen vedenlämmityssarja, energiansäädin ja 2 ruuvattavaa lämmitysvastusta, 1,5 kW (NEX-R2)

The Nexol Energy Controller and the two screw-in heating elements provide maximum and cost-effective comfort with solar energy from your PV modules for hot water preparation.

• Hot water generation by solar power
• Heating power of 1500 W
• Two-zone heating
• Your benefits and highlights
• Ensuring hot water supply
• Legionella programme
• Retrofit existing systems - compatible with 1.5" E-socket
• Heating support
• Smart touch display control
• Flexible applications
• Simple installation - ready-to-plug delivery
• Plug & Play
• How it works in detail

As soon as the sun shines, the PV modules generate electrical voltage and current flows through the Nexol Energy Controller. There, the current is conducted with low loss to the DC coil of the AC/DC screw-in heating element, which immediately begins converting the energy into heat and heats up the storage tank. In bad weather or when the sun is not shining, the Energy Controller can additionally use grid power for supplementary heating.

• Why it is worth it

Depending on the energy source, different savings potentials result. These can be well illustrated by the following key figures:

50% - energy cost savings compared to gas boilers. That means up to €150 savings per year.

75% - energy cost savings compared to electric boilers. That is up to €300 savings per year.

90% - use over 90% of your generated solar power yourself - maximum efficiency and savings for you.

The process first heats the upper zone of the tank to up to 65°C, which enables a fast provision of hot water. With little sunshine, the intelligent system takes over supplementary heating via the grid and focuses on the upper zone to minimise electricity consumption. As soon as this zone reaches its target temperature, the focus is switched to the lower screw-in heating element to heat the entire tank content. In this way, the energy generated by the PV panel is efficiently stored in the water.

• Hot water assurance

The system offers flexible setting options for different user types. You can individually determine how often per day supplementary heating takes place, up to which temperature the water is heated and from which PV power this happens. This way you always have full control and can be sure to always have sufficient hot water available.

To kill legionella, the water in the tank must be regularly heated to at least 60°C. For this purpose, a programme is activated by default. The interval between heating cycles can be flexibly set to 1-14 days, with an interval of 7 days preset. The Energy Controller starts each interval after the last reached temperature of over 60°C.

• Quick and easy installation

Simply connect the PV modules directly to the Nexol Energy Controller via MC4 connectors. This is additionally supplied with power via a conventional mains plug. The screw-in heating elements in the hot water storage tank can be easily connected to the controller by plug after installation. This way you benefit from cost-efficient hot water in no time.

• 1x Nexol NEX-R2 Energy Controller
• 2x screw-in heating elements for PV and grid