1) Battery Power Priority, Grid Power Backup
48V 45A 1,000W (9,000btu/12,000btu/15,000btu)
48V 60A 2,000W (18,000btu)
48V 80A 3,000W (24,0000btu)
This “hybrid control box” is designed for HARVEST off-grid solar air conditioners. If there is grid power available, this “hybrid control box” can make off-grid solar air conditioners run under hybrid mode. Battery power in priority status, grid power play a role of backup energy.
The power supply will be switched to grid power automatically upon low battery (voltage < 48V ). The power supply will be switched back to solar power automatically when voltage of battery rise up (voltage > 52V )
There are 1 x power adapter, 1 x solar charge controller, 1 x power supply switch PCB and 3 x circuit breakers built-in inside the “hybrid control box”.
Indicators of power supply Solar/Grid on cover of hybrid control box.
This hybrid control takes maximum energy from solar to save energy consumption from grid power.
2) Solar Panel Power in Priority, Grid Power and Battery Power Backup
If voltage from solar panel is enough to drive air conditioner, the power supply will be from solar panel directly.
If voltage from solar panel is not enough to drive air conditioner, the power supply will be switched to grid power automatically
If grid power is not available, the power supply will be switched to battery power.
This hybrid control box use minimum energy from battery, which make battery backup time as long as possible.