A couple of quick questions on 2-stage AC systems...
1) I've been looking at Trane's 2.5 ton single-stage units. Trane's two-stage units come in 2-ton and 3 ton, no 2.5 ton. In this case, should I go up or down in size?
2) When a 2-stage system is running on 1st stage, what percentage of its full capacity is typically being used?