Solarmi GETI GWH02D
GETI GWH02D 4000 W MPPT solar inverter for PV water heating.
The GETI GWH02D solar inverter is particularly suitable for use in photovoltaic water heating systems using the NZÚ and NZÚ Light subsidy programs.
Save costs and heat water using solar energy today. Thanks to the GETI GWH02D solar inverter with automatic switching to the grid, you can significantly reduce your costs for heating hot water. The NZÚ Light subsidy will then cover up to 100% of the costs of the installed system .
The inverter allows direct use of photovoltaic panel systems to power resistance heating devices such as electric boilers, heaters, heating mats, water heating, etc. The inverter is also equipped with an AC input, which allows the inverter to be connected to the mains voltage and water heating even when sunlight is insufficient for heating.
Warning: The GETI GWH inverter is only suitable for resistive loads with a bimetallic thermostat. It is not suitable for electronically controlled thermostats! The inverter output (L, N) must not be connected to the mains or ground! The inverter output must not be connected to a TN-C system.
The system is simple, requiring only the connection of the appropriate number of photovoltaic panels with a maximum power of 4000 W with an operating voltage of 160 to 350 V DC, a mains voltage of 230 V AC and a connection to a resistive load, e.g. a heating coil, electric boiler, electric radiator or underfloor heating, and fuse elements.
The direct current generated in the panels, which cannot be fed directly to the heating devices, is converted into alternating current in the inverter, which can be used to power the heating devices.
The maximum system power is 4000 W. The inverter has priority input from photovoltaic panels and when this voltage drops below 120 V, the water heating will be powered from the 230 V AC mains voltage.
- Solar inverter for hot water heating using a resistive load (heating coil, boiler)
- Automatic switching between grids (PV & 230 V AC grid)
- Separate temperature setting for water heating from PV or AC grid
- Working modes: PV only as an island system or PV + grid automatic mode
- Quiet operation – passive cooling
- Efficient tracking of maximum power on panels using MPPT
- High efficiency > 99%
It is equipped with a circuit with switching relays , which connect its output either to the inverter circuit or directly to the AC network, for which it is only pass-through. The Geti inverter is therefore only backed up by the network (this is the so-called bypass). Since both energy sources are separated in this way, it is not possible for the inverter to cause unauthorized overflows into the network .
The inverter is equipped with an LED display that informs the user about the current status of the inverter.
- Indication of water heating from PV panels
- Indication of water heating from the 230 V (AC) network
- Water temperature (PV, AC) current and set
- PV power
- PV voltage
- Operation indication
- Error status indication
Technical parameters :
- Input voltage (DC): 160-350V
- Input voltage (AC): 230 V
- Output voltage (AC): 0-260V
- Maximum power: 4000 W
- input current from PV: max. 20 A
- AC output current: max. 20 A
- Load type: resistive with bimetallic thermostat (not suitable for electronically controlled thermostats!)
- The resistive load value must not be less than 13 ohms.
- MPPT function: yes
- PV panel connection: series or series-parallel
- Priority input: PV panels
- Backup input: mains 230 V AC
- Working temperature: -25 to + 55 °C
- Efficiency: > 99%
- Temperature sensor length: 3 m
- Cooling: passive
- Input short circuit protection
- Overheating protection
- PV panel input connection: MC4 connectors
- Input connection 230 V AC: screw terminal
- Output connection 230 V AC: screw terminal
- Material: aluminum + metal
The package includes a temperature sensor (3 m).
BASIC SPECIFICATIONS
Max. power: 4 kW
Input voltage: DC 160–350 V or AC 230 V
Output voltage: AC 0-260V
Protection level: IP65
Dimensions: 255 × 201 × 95 mm
Weight: 3 kg
