Sol-Ark Integration Guide
experience and battery life, limit the discharge to 80% except for very rare occasions. Here is a list of our suggested
triggers:
Application Gen Trigger Grid Trigger
Grid-tied, no generator not checked
checked, 51.2V or 15%, TOU programming to 20%
minimum
Grid-tied, with portable
generator
checked, 51.1V or 10%, shutdown
8%
checked, 51.2V or 15%, TOU programming to 20%
minimum
Off-grid, with stationary
generator
not checked checked, 51.4V or 20%
Off-grid, with portable
generator
checked, 51.4V or 20% not checked
Off-grid, with two generators
checked, 51.1V or 10%, shutdown
8%
checked, 51.4V or 20%
It is okay to raise the grid or generator start triggers to increase the reserve capacity of the system.
4. Program the Discharge Tab
Notes
a) Shutdown turns the inverter off and waits for the sun to recharge the battery, whenever that may be in the future. You
can increase the shutdown level to increase the "reserve capacity" of the system, but that will prevent that battery range to
be used. The correct shutdown level is specific to the project site.
b) Low battery is an alarm also specific to the project site, integrated with the Sol-Ark monitoring app. We suggest a 20%
state of charge as a good low battery alarm level, but it can be higher.
c) The battery empty voltage should not be lower than 48V. If increasing the reserve capacity in the above note a, then
increase the battery empty voltage to 49V or 50V. More on voltage levels later.
Secure the battery
The eVault MAX has wheels that assist with installation, but is not a portable battery.
It is intended to rest on its fixed support legs, using the included wall bracket if additional security is necessary.
Some jurisdictions may have seismic requirements which require bolting the battery to the floor. The evault MAX can be
mounted directly to floor by replacing the adjustable legs with Pieces of unistut. Unistrut mounted directly to the eVault
MAX frame using M12 x 1.75 bolts into the adjustable legs mount. A second piece of Unistrut or similar material is
mounted to the floor that the eVault Frame mounted Unistrut sits on top of and is secured appropriately to the floor.
eVault MAX sold to distributors after September 2022 will have an additional floor mount bracket option included. It is not
a retrofittable option. Please see digital eVault MAX manual for more information.