Welcome to EcoFlow Support

Welcome to EcoFlow Support

We're here for you

FAQ

Can the EcoFlow DELTA Pro Ultra charge using existing rooftop solar?

Yes, it's compatible with existing solar systems, including rooftop solar*. For each EcoFlow DELTA Pro Ultra Inverter, solar input can reach a maximum of 5600W (16.8kW with 3 inverters) with the following: High voltage PV: 80-450V, 15A, 4000W Max Low voltage PV:30-150V, 15A, 1600W Max *If you connect the EcoFlow DELTA Pro Ultra to PV system circuits installed on or in buildings, according to NEC regulations, the system shall include a rapid shutdown function to ensure operation safety and reduce shock hazards for emergency responders. If you wish to connect the EcoFlow DELTA Pro Ultra to PV system circuits, a pre-purchase consultation must be completed by a qualified electrician or installer.

Can EcoFlow DELTA Pro Ultra be charged using an EcoFlow Smart Generator?

EcoFlow Smart Generator can charge EcoFlow DELTA Pro Ultra using an EcoFlow AC Charging Cable (NEMA 5-15P to C19). EcoFlow DELTA Pro Ultra can not be charged using DC through an XT150 cable. Third-party generators can charge EcoFlow DELTA Pro Ultra using the EcoFlow AC Generator Charging Adapter. The EcoFlow Smart Generator can be auto-switched on or off through the EcoFlow app.

There is a 274 fault code when using a 780W/5700W dryer and charging at 1800W/120V.

A 274 fault is caused by a C20 outlet overcurrent. After a C20 overcurrent, it will switch to INV and discharge normally, as long as you have a split load. At this time, the maximum power should be 7200W. The custom charging mode does not support X-Boost. Once the output load exceeds the set charging power, it will cause the 274 fault. If the user needs to charge and discharge a dryer simultaneously, the C20 must be set to fast charging mode.

Does EcoFlow DELTA Pro Ultra work with an existing grid-tied system that does not have a backup feature?

Unfortunately, EcoFlow DELTA Pro Ultra cannot connect and feedback to the grid.

Can I connect EcoFlow power stations to my house electric panel directly?

Yes, but the transfer switch should be connected to the power station's AC output port. You should disconnect the circuits from the grid before the power station supports them. The total power consumption of the circuits should not exceed the output power rating. The output will not be grounded if the power station is not connected to the grid.

Contact us