Shepx2 I'm not as familiar with the puron air handlers as to what blowers are in them.Most puron systems I've installed have the VS motor. If you have paperwork showing a board setup for cfm,ton,heat package,etc... you have a VS motor. Do not set it up.Have contractor back out to do this. Then make sure he checks charge,subcooling,superheat,etc... after setting the board up.