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Originally Posted by badtlc  I meant are those two-stage units? Variable speed? Are they from the Infinity series or weather maker series? Those model numbers don't mean anything to me. |
The numbers don't mean anything to me either which is the problem. Very hard to make meaningful comparisons. the 4twr6036 is a two stage unit but I am finding out that there are a couple of numbers missing that indicate if the units can "talk" to each other. All I really want is a reliable replacement.