https://www.fueltech.net/blogs/articles/new-ft450-ft500-ft500lite-ft550-and-ft600-update

⠀⠀⠀⠀⠀⠀⠀⠀⠀

⠀⠀⠀⠀

⠀⠀⠀⠀⠀⠀⠀⠀⠀

⠀⠀⠀⠀⠀⠀⠀⠀⠀