Fill out this form: https://watts247.com/manuals/gw/Warranty/GrowattWarrantyClaimForm.doc
email it to : email@example.com
Describe the issue, Growatt should send you spare parts via DHL
Note, we also carry Growatt spares for sale on our website, we have lots for everyone.
WARNING. with these (all models with more than 145V) high voltage MPPT input models, DO NOT ground the PV+ or PV- inputs, do not share panels with other inverter MPPT inputs.
Each MPPT Input needs it own solar panel array , do not share common wires between arrays for different MPPT input.
SOLAR VOLTAGE NEEDS TO BE ABOVE 120V TO BE DETECTED, 160V TO 200V WORKS BEST (160V+ REQUIRED FOR BATTERYLESS OPERATION)
Keep it simple, One Inverter, one solar panel array (obviously the panel aluminum frame must still be grounded to conform to safety standards)
Not following these simple rules can cause damage to your inverter / pair of inverter.
Hybrid Power System
This is a multi-functional off grid solar inverter, integrated with a MPPT solar charge controller, a high frequency pure sine wave inverter and a UPS function module in one machine, which is perfect for off grid backup power and self-consumption applications. This inverter can work with or without batteries.
Add PV modules, generator, or utility grid, all or None.
Please consult with your system integrator for other possible system architectures depending on your requirements. The WiFi /module is a plug-and-play monitoring device to be installed on the inverter. With this device, users can monitor the status of the PV system from the mobile phone or from the website anytime anywhere.
Rated power 3KW, power factor 1
MPPT ranges 120V~250V, 250Voc
High frequency inverter with small size and light weight Pure sine wave AC output
Solar and utility grid can power loads at the same time With CAN/RS485 for BMS communication
With the ability to work without battery
Parallel operation up to 6 unit (only with battery connected) WIFI remote monitoring (optional)
NOTE: These units DO support comunication with PYTES / SOK and Powerup batteries (any battery that supports growatt prptocol) if your battery does not support these protocols –> choose battery type “USR” or USER, and enter in your battery suppliers (Bulk, Float, Low Voltage Cutoff, and Charging Amps) – Your BMS will NOT communicate with the inverter
(If you want to mess with the BMS protocol to interface to your Arduino or whatever, the protocols can be found at watts247.com/manuals/gw)
Another note, there seems to be a lot of confusion about BULK and Float Charge Setting.
Bulk Charging, is usually the 90 or 95% or less than MAXIMUM Battery voltage, this is where the fast charging mode occurs. (usually around 27V) (contact your supplier)
Float Charging (holding charge), is the resting or nominal voltage of the LiIon or LiFePO4, when it is fully charged, but now in a resting state with no load, usually around 25.5 to 26V for LiFEPO4 (contact your supplier)
Low Voltage Cutoff, this is the voltage the inverter needs to turn off before depleting the battery – you want your inverter to shut off BEFORE your battery to dies, or the BMS to disconnects (usually around 47V or whatever the 20% charge voltage is)
This unit is not a knockoff like (POW EASUN etc.) This is a very well built / designed product, otherwise we wouldn’t sell or support it.
Supplied by a top tier support outlet here in the USA, (Utah).
Parallel Kits already built in,
super quiet operation.
Very detailed LCD display
5-in-1 unit. (Not Grid Tied – no feedback, only Grid assist – the load gets switch over to grid when all else fails)
1) 6000 W Pure Sine wave output expandable up to 18 kW (single or Split Phase configurable – will need to all be connected to the SAME battery, make sure its large enough to handle the load for the time – usually 2 days or more)
(6000 / 240 = 25A or 6000 / 120V = 50A)
2) 1 x 4kW MPPT Solar Charge controller (80A)
3) 1 x 60 A 48V Utility Battery Charger (In case your battery level falls below your setpoint)
4) UPS function, wire it to the Utility power, if battery power is too low, the system automatically switches the load to Utility power
5) Single 120V 60Hz , Split phase capable with 2 or more units (120V – 0 – 120V ) (includes parallel board for each unit)
6) Pure Sine wave output expandable up to 18 kW (single or Split Phase configurable – will need to all be connected to the SAME battery, make sure its large enough to handle the load for the time – usually 2 days or more)
The generator charger is a different beast to the solar charger. (Does not utilize the Bulk and Float Charge settings)
It works on a float valve type principle. (triggers when battery voltage drops below that on setting 12 – set the voltage higher than current battery voltage to start charging right away)
Stops charging from Generator when setting 13′ s voltage is reached
Will not start charging the battery again until it drops below battery voltage – in setting 12.
Setting 01 set to SBU to activate setting 12 and 13.
Setting 02, is the Max charging current from Solar + Utility/Generator
Setting 11, is the Maximum Generator/Utility charging current @ your battery voltage (not at 120V)
Setting 14, make sure this setting includes the option to charge from utility/generator (see manual)
Note, setting Setting 11 too high for your generator may cause your generator to falter at startup, and cause the Inverter Charger to lose synchronization with the Generator (58 to 63Hz), if in doubt start small, and work your way up.