Use the test modes to find all the triacs the machine uses. It's the first test in the test routines (COIN FLOW TEST). This is how I've got Club C&R setup, mate.
If you open the diag box and check Menu and Datapak, you can see what triacs are used for payout ( in this case £2.60 )
You can see it's using Triac 3 for the £1's and Triac 4 for the 20ps