Firstly: You need to install a circuit breaker between the battery and the inverter, open the breaker after successful installation, then connect 24v the battery, close the circuit breaker, and measure the voltage on the battery side of the inverter.

Secondly: Install a circuit breaker between the PV input and the inverter, turn on the circuit breaker after successful installation, make sure the battery voltage is normal, let the machine connect to solar energy, then close the circuit breaker between the PV input and the inverter. At this time, the inverter display will automatically light up and start charging, and then press the button on the bottom right corner of the inverter to start the machine. Then check whether there is 110v or 120v voltage output from the inverter output.

Finally: A circuit breaker needs to be installed between the AC input and the inverter, then a circuit breaker also needs to be installed between the output of the machine and the inverter. After successful installation, turn on the circuit breakers of the AC input and output, then connect the machine to the mains, turn off the mains input circuit breaker, and then turn off the circuit breaker of the output of the inverter after 2 minutes. This is the complete procedure for installing the machine.

For the HGX 4000W inverter, you need to install a 2P200A specification circuit breaker between the battery and the inverter, a 2P20A specification circuit breaker between the photovoltaic input and the inverter, a 2P63A specification circuit breaker between the utility input and the inverter, and then a 2P40A specification circuit breaker on the output of the inverter.

Off-Grid Solar Inverter Built-in 140A MPPT Charge Controller, Pure Sine Wave Inverter Single-phase output 110-120VAC, combining functions of inverter, solar charger and battery charger to offer uninterruptible power support with portable size. Its comprehensive LCD display offers user-configurable and easy-accessible button operation such as battery charging current, AC/solar charger priority, and acceptable input voltage based on different applications.

Combining functions of inverter, solar charger and battery charger to offer uninterruptible power support with portable size. Its comprehensive LCD display offers user-configurable and easy-accessible button operation such as battery charging current, AC/solar charger priority, and acceptable input voltage based on different applications.

140A MPPT Solar Charging Inverter, High PV input voltage range of 55~350VDC, AC output voltage 110-120VAC, max 5600W solar charge, 50/60HZ frequency, Battery voltage 24v, run without battery, 6.25 inch LCD display and touchable buttons, Cold restart function.

Customize the priority of power inputs and outputs with 3 charging modes (Only Solar, Solar First, Mains&Solar) and 2 output modes (SBU, SUB). This inverter charger offers efficient power management for personalized energy consumption.

If you want to know how many solar panels you need to connect to your machine to work, then you need to consider what voltage and power of pv charging the power of the machine you buy allows, at the same time you also need to know what the voltage of your single solar panel and the open circuit voltage is.

For HGX series machine, the maximum pv charging power is 5600w, pv charging voltage range is 55-350v. If you are not sure how many solar panels need to be connected to the machine you purchased, you can refer to the chart below or tell us what is the power and open circuit voltage of your single solar panel, we will help you to determine how many solar panels you need to connect at least or at most.