How do you clear foreign currency balances out of the GL Fixed Asset Clearing Account ?

The local currency in Ireland is EUR. Lets say you get a fixed asset invoice in USD and you book it to the asset clearing account. You now have a USD and a corresponding EUR balance in the clearing account. You now capitalise the asset in Mass Additions and you run depreciation and you run Create Journal Entries - Standard. The journal that is created for additions is in EUR and that clears out the EUR balance - what about the USD balance ? How does that get cleared out - is that a manual process ?