Our old friend Bob Willis posted the best procedure for determining wave solder recipes at his site [ http://www.bobwillis.co.uk ]. In the "Download" section, look for "Setting up Wave Soldering System (Plain Text Format)". It was written, last we knew, for non-nc fluxes. So, it will be a good starting point for your task, but require tailoring to the specifics of your operation.
Your flux and wave solder machine suppliers can help you in refining Bob's procedure. Additionly, folk here on SMTnet can help you refine the steps in the procedure.
Good luck.
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