The original company was bought out in 2012 and the name changed to Clean eMarine
The North American distributor is Clean eMarine Americas.
The specifications for the Thoosa 7000HT are here: Thoosa7000HT.pdf
The original installation manual is available from archive.org at
Asmo_Marine_Installation_Manual
A more recent installation manual is available from e.g.
thoosa-quick-guide-handbook