On a Carrier Infinity package heatpump, I have been told I have to use a 4 wire UI controller. The stat i have is a Carrier one-for all t-stat. P/N TSTATCCPF701. Will this stat work with this unit, or do I need one that is designated an Infinity controller? This is the first Infinity I have encountered so I am not to sure about what will work and what wont. Thanks ... oh, and sorry for the duplicate post...my first day on the forum!