New PID Thread - 2010

[zip22]

Hello everyone!  I've been reading all the old posts on building a PID controller unit, and have learned a lot!  Thanks!  I've got an Auber PID, a box, TC, etc. etc. .... was inspired by Raye Minor's thread:  http://www.susanminor.org/forums/showthread.php?t=315. 

Here's my question, as I still have yet to actually put it together and test --- I also bought a Rocker light switch to install.  It's rated at 30A for 110V.  Being a novice, I assume it comes between the power source and the PID itself.  Does any know exactly, or how the following diagram (from here: http://www.susanminor.org/Rayeimages/pid/diagram.jpg) would be altered to achieve this?

After looking at Bubba Gump's and Car 54's posts, it's clear they figured out how to it!

Many tnanks again!

Steve