PROPER INSTALLATION
². Using wires that are too
thin will cause them to heat up and cause a voltage drop at the inverter input,
which leads to losses in the circuit and in extreme cases can cause a fire.
The inverter requires unobstructed air circulation for proper
operation. Do not, under any circumstances, cover the ventilation holes
in the casing (7 in the diagram), as this may be a direct cause of
overheating and incorrect operation or damage to the unit.
To connect the PV panels to the inverter, use suitable PV installation
cables with a cross section of not less than 4mm
USE
The ECO Solar Boost inverter is equipped with two power outputs
(type E electrical sockets) labelled "1" and " ". After connecting
the correct supply voltage from the solar power system (
),
the inverter checks the presence of receivers connected to both outputs.
Detection of a resistive load (heater) with a power not exceeding 3.5kW /
will supply the output to which the load has been connected. If two
resistance receivers are connected to the outputs "1" and " ", the load
connected to the output "1" will be powered first. When it stops consuming
energy, the inverter will switch power to output " ". The reappearance
of the load on output "1" will switch the power supply back to this output.
In case of detecting too much load connected to the output "1" or " ",
the overpowered output will not be powered.
ECO Solar Boost series inverters have been equipped with
a number of protections (see protections table), so that in case of an
overload or overheating, the device will safely shut down, thus avoiding
permanent damage.
In case of detecting any irregularities, the converter signals the
impossibility of further, correct operation by the appropriate flashing
of the green or red LED indicator located on its housing, and additionally,
in case of a critical error, also with an acoustic signal.
Individual events or errors can be presented one after the other,
which is signalled by the lighting of the signalling diode in different
colours and with different frequency. For example, the correct operation
of output 1 and too high load on output
will generate the following
alternating sequence: single short blink in green, double short blink in red.
2
120V - 350V
230V
2
2
2
2
USE
SAFETY
INTENDED USE
CONNECTION
NOTE:
The polarity of the supply voltage is very important when connecting!
Reverse wiring will damage the inverter and void the warranty!
The device has two MC4 connectors on the housing, which must be
connected to the PV installation. The connector shaped
.
should be connected to the negative pole of the PV installation and the
connector shaped
should be connected to the positive pole of the
PV installation.
A DC safety switch, designed for such installations, shall be installed
on the PV system power cord.
Connect a suitable
heating consumer, e.g. an electric boiler,
to the inverter output marked "1". When the inverter detects the presence
of voltage from the PV panels within the appropriate range, the inverter
will automatically turn on, which will be confirmed by the LED indicator.
Optionally, a second energy consumer can be connected
to the output marked " ". This feature works only with a bi-metal
thermostats. Electronic temperature controllers can only work with an
output “1
”
. Lack of activities on both outputs for a long time will cause
a delay of load sense on output
up to several minutes.
The inverter must be earthed via the designated screw connector on
the inverter housing ( ).
230V
2
2
2
The ECO Solar Boost Series voltage inverter produces a dangerous
voltage at the output that may cause electrical shock or fire. During use,
follow all safety rules that apply to
electrical equipment.
High voltage may persist on the power supply terminals and internal
components even after disconnecting the power supply, and in case of no
load even for a quarter of a minute until the LCD goes out.
Any repairs should only be carried out by an authorised service centre.
Do not use the voltage inverter in a high-humidity area, near a fire
source, flammable substances, or exposed to direct sunlight.
If it gets wet, immediately disconnect the power supply. Do not
connect a load greater than that permitted for continuous operation to the
inverter output. Overloading may cause damage to the device.
In case of fire, use a fire extinguisher designed for extinguishing live
electrical equipment in accordance with its operating instructions.
Under no circumstances may the input (VDC connectors "+" and "-")
and output (VAC sockets 1 and ) of the ECO Solar Boost inverter be
connected to the power grid or earth potential.
230V
2
The ECO Solar Boost inverter is designed to power heating devices
such as boilers, heaters, electric heaters or heating mats directly from PV
panels. It achieves the best performance cooperating with devices
equipped with bimetallic temperature control (non-electronic).
The system requires: 4 to 9 typical PV panels (250W - 400W)
connected in series, with a total voltage in the range of 120V to 350V,
an ECO Solar Boost inverter and an energy receiver with a heater with
a capacity of 200W to 3kW. The inverter is equipped with internal
maximum power protection of 3kW. However, the total power of the
panels connected to the inverter should not be higher than 5 kW.
The optimum power for systems operating in the spring - autumn
period for boilers with a capacity of 50-200L is 1000W to 2000W (4 to 7
PV panels). However, for year-round systems, it should be slightly higher
due to high cloud cover and low sun angle in winter.
Two mains outputs located on the casing allow for connecting two
heating devices (e.g. two boilers), one of which will always be heated first
and the other only when the thermostat of the first one stops receiving
energy from the inverter. This ensures that energy from the PV panels will
not be lost when one of the units reaches a set temperature.
ECO Solar Boost inverter is equipped with MPPT algorithm that
maximizes the amount of energy drawn from PV panels and causes
automatic adjustment to the heater power.
In order to improve heat
dissipation and for your own
safety, it is suggested to screw
the inverter vertically to non-
flammable surfaces (concrete,
metal) while maintaining the
appropriate
distance
from
adjacent elements.
50cm
50cm
PV voltage too high or too low
overload
overtemperature
green LED blinks rapidly
red LED blinks
intermittent sound signal
output 1 - overload or short circuit
proper load detected
waiting for start
output
- overload or short circuit
2
red LED - single short blink
green LED blinks
red LED - two short blinks
proper load detected
output 1 engaged
proper load detected
output
engaged
2
green LED - single short blink
green LED - two short blinks
restart after cooldown
automatic shutdown and restart
after a few seconds
inverter will not start
red LED blinks rapidly
intermittent sound signal
