AZO Digital MPPT PRO Manual Del Operacion página 4

INTENDED USE
The ECO Solar Boost PRO inverter is designed to power heating
devices such as boilers, heaters, electric heaters or heating mats directly
from PV panels.
The system requires: 4 to 9 typical PV panels (2 50W - 400W)
connected in series, with a total voltage in the range of 12 0 V to 350 V, an
ECO Solar Boost inverter and an energy receiver with a heater with a
capacity of 2 00 W to 2 .5 kW. The inverter is equipped with internal
maximum power protection of 3.5 kW in MPPT-3000 version and 4.5 kW
in MPPT-4000 version; 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 50-2 00 L is 1000 W to 2 000 W (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.
CONNECTION / COMMISSIONING
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 male connector, should be
connected to the minus of the installation and the female connector
should be connected to the plus of the PV installation.
A DC safety switch designed for such installations shall be installed
on the power cord from the PV system.
Connect a suitable 2 30 V 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 display running.
Activation of output "1" is indicated with a single " " symbol on the LCD
display.
Optionally, a second energy consumer can be connected to the
output marked "2 ". Activation of the output "2 " is indicated by "
symbols on the LCD display.
The inverter must be earthed via the designated screw connector on
the inverter housing (2 ).
PROPER INSTALLATION
To connect the PV panels to the inverter, use suitable PV installation
cables with a cross section of not less than 4mm
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
openings in the casing (7 in the diagram), as this may be a direct cause of
overheating and incorrect operation or damage to the unit.
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.
USE
The ECO Solar Boost PRO inverter is equipped with two power
outputs (E-type power sockets) labelled "1" and "2 ". Output "1" is the
priority output - voltage on it is present all the time. Output "2 " is the slave
output, on which the voltage appears if output "1" is loaded with a power
lower than the power supplied by the PV panels connected to the inverter
(or is not loaded at all).
Thus, it is possible to connect to output "2 " an additional heating
energy receiver, which will be powered only when there is a power surplus
in the system, e.g. when output "1" is not loaded in the situation when the
boiler connected to it reaches the preset temperature.
The load capacity of output "1" is 3 kW and the load capacity
of output "2" is maximum 2 kW.
ECO Solar Boost PRO series inverters have been equipped with a
number of protections (see protections table), so that in the event of an
overload of the output or overheating, the device will safely shut down,
*
thus avoiding permanent damage.
The inverters of ECO Solar Boost PRO series are equipped with
LCD display that continuously informs the user about the PV installation
"
**
parameters such as: PV panels system voltage, generated current,
output power, amount of energy produced today (" " symbol), amount of
energy produced yesterday (" " symbol) and amount of energy produced
from the first startup.
In addition, the display shows the current events as well as detected
irregularities in the form of text messages.
². Using wires that are too
2 0cm 2 0cm
»
«
SAFETY
The ECO Solar Boost PRO 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 2 30 V 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 2 ) of the ECO Solar Boost inverter be
connected to the power grid or earth potential.
USE
voltage
current
Messages presented on the LCD display:
- High voltage - voltage too high in the system; too many panels
connected in series; reduce the number of panels or connect them e.g.
in series-parallel system
- Low voltage - circuit voltage too low; too many panels connected
- High temperature - temperature is outside the operating range of the
device; if the temperature is too high, let the inverter cool down and
check if the fans have not been mechanically blocked (additional
intermittent slow sound signal)
- Low heater power - momentary power of the panels higher than the
power of the heater connected to output „1"; activation of output "2 "
- High heater power - too little energy in the system in relation to the
heater connected to output "1"; message may appear e.g. during
a momentary cloud cover
- Overload - too high current in the system; possible causes are:
connected heater with too high power or short circuit at the output
(additionally indicated by intermittent fast audible alert).
power
energy