30k max. Just bring the vintage retro bank book and passport to the bank counter and they can withdraw from your account and deposit into the account that you want to deposit. They are nice and kind, will help you fill up the forms etc.
It is ok, i change from non-o to 60days, went in cos the bloody atm only allows me to tranfer 30k max, they took my passport and bank book, given me a new bank book.