Saules enerģijas ūdens sildītājs – ELIX PV150 Ar MPPT DC 1500 W

Solar PV Water Heater – 150L / 200L | Direct DC Heating System with AC Backup

Elix PV water heater designed for direct connection with photovoltaic (PV) panels. The PV boiler uses direct current (DC) heating element to convert solar energy into hot water. The DC heating element connects directly to Solar panels with MC4 connectors eliminating the need for an inverter and, thus, no grid registration needed. Boiler also uses 230V AC heating element when solar DC power is insufficient. 

Features

• Integrates both DC and AC heating elements.
• Supports Solar (DC-only) and Hybrid (DC+AC) modes.
• 100% utilization of solar energy – no excess is lost.
• Consistent water temperature ensured.
• No inverter needed – direct connection to solar panels
• Simple installation
• 50mm insulation – best in class!
• Floor-standing design
• Temperature monitoring screen
• Suitable for indoor (recommended) or outdoor installation.
• Warranty:
  • 5 years (water tank)
  • 2 years (electrical components)

Water Heater Characteristics (150L/200L)

• Inner tank material: Enameled BTC340R steel
• Thickness of inner tank: 2.5mm
• Insulation Thickness: 54mm
• Outer Tank Material: Anti-corrosion steel
• Rated Pressure: 0.8 MPa
• Dimensions:
  • 150L: Ø520 x 1308 mm
  • 200L: Ø520 x 1688mm
• Water pipes size: G3/4 ’’
• temperature: 75 °C
• DC heater power: 1100 W
• DC heater max. voltage: 85V
• AC heater power: 2000W
• AC heater voltage/frequency: 230V/50Hz
• Usage Recommendations:
  • 150L model: Ideal for 3 people.
  • 200L model: Ideal for 4 people.

Solar Panels Connection Characteristics (150L/200L):

• boiler input voltage from PVs: 110V
• PV total power output: 1100W
• Included MC4 Connectors length: 0.5m

How It Works

The boiler uses 2 water heating elements: AC and DC elements. DC heating element is connected directly to solar panels eliminating the need for inverter. If solar energy isn’t enough, the AC (230V) heating element can be used for consistent hot water—cloudy or sunny, day or night.

Heating Modes

DC-Only Mode (Solar Heating):

• In this mode, the heater uses only solar energy — no household power is consumed.
• Activated by setting the thermostat knob to “OFF” position.
• In this mode you can’t select an exact water temperature — the water simply heats as much as the sunlight allows.

Hybrid Mode (DC + AC):

• Hybrid mode is active whenever you select temperature with the thermostat knob.
• Hybrid mode ensures fast heating to your chosen temperature and keeps water consistently hot.
• Automatically switches to DC-only mode when surplus solar energy is available, storing surplus energy as hot water (up to 75°C).

No Solar Energy Wasted

The Elix PV water heater makes the most of your solar power. In daily use, it keeps water at a comfortable 45–55 °C (user adjustable). When there’s plenty of sunshine but low hot water demand, it switches to solar DC heating only, allowing the temperature to rise up to 75 °C.

Instead of wasting excess solar energy, the system stores it as hot water for later use on cloudy days or at night—eliminating the need to send surplus electricity through an inverter or back to the grid.

DC only heating performance data

The table below shows how much 55 °C hot water (liters per hour) the boiler can continuously supply in DC only heating mode with different power outputs from PV panels. This helps to see what to expect under various sunlight conditions and solar panel sizes.

Conditions

• AC heating element inactive
• DC heating element active
• Water in tank is already heated up to 55 °C
• Cold inlet water temperature: 15 °C
• Target hot water temperature: 55 °C
• Ambient room temperature: 20 °C

Advantages of the ELIX PV Heating System

• Inverter-Free Operation: Direct connection to solar panels via MC4 connectors minimizes installation cost and complexity.
• Dual Heating Mechanism: Integrates both DC and AC heating elements for reliable operation across varying sunlight conditions.
• Thermal Energy Storage: Functions as an energy buffer, storing excess solar power in the form of hot water.
• Thick insulation: 50mm insulation ensures minimal heat loss for efficient hot water storage.
• No Grid Registration: No inverter or grid connection required for PV panels, simplifying setup with only two wires needed.
• Robust Construction:  Enameled BTC340R steel inner tank and anti-corrosion steel outer shell ensure durability for up to 20 years.

PV vs Solar-Thermal water heating systems

Unlike solar-thermal systems that require pumps, pipes, and coolant, the Elix PV Water Heater uses solar panels to directly power the tank’s heating element, eliminating leaks, gasket issues, and other maintenance bottlenecks.

• Low maintenance: Requires minimal upkeep compared to solar-thermal systems.
• Longer lifespan: PV panels last 20–25 years, versus 10–15 years for solar-thermal collectors.
• Lower costs: Overall system costs can be 30–40% lower.
• Simple installation: Fewer components make setup easier and faster.

The Elix PV system is a simpler, more cost-effective, and durable solution for sustainable water heating.

Maintenance

Rust Protection Magnesium Anode – Protects the inner tank surface from corrosion. The anode wears over time and must be inspected and replaced every 24 monthes.