The entire manual as a printable version can be found here.
NCCR Cash Register (NAV)
AddOn to meet legal national requirements for the fiscalization of POS systems. Current Version: NCCR 13.00 Dynamics NAV BC 13/12. For older NAV versions, downgrades are available.
Note
NCCR Cash Register is available for Microsoft Dynamics 365 Business Central as an extension under the product name NCCR Cash Register.
For more information, see [Docs] NCCR Cash Register