the default refiner have this.....
trunk/npc/merchants/refine.txt
find this inside....and edit the last value to 1.
// Weapon/Armor Refiners
//============================================================
callfunc "refinemain","Hollgrehenn",1;
callfunc "refinemain","Aragham",1;
callfunc "refinemain","Antonio",1;
callfunc "refinemain","Fredrik",1;
callfunc "refinemain","Lambert",1;
callfunc "refinemain","Manthasman Pruhag",1;
callfunc "refinemain","Fulerr",1;