what is tonage on these units any one please

Tony, we don't sell Lennox, but do service a few. Just guessing, but I would imagine that the "13" in the model numbers means 13 SEER, and the "42" in the first unit means 42000 BTU or 3 1/2 ton, and the "37" is

Mighta been one was a much older recip compressor. More amps, well, they were less efficient. They usually mix the BTU/h into the model numbe. Some brands do.

Nawlins had a hurricane some years ago. Has it come back to life?

If I had known you were in New Orleans, I would have come down and had a beer with you. I only live an hour and a quarter away from there.

Tony, regarding the rated amperages-- I've seen things like that before. I remember on Rheem/Ruud years ago I think the 3 and/or 3 1/2 ton 10 SEER units were rated about 1.5-2 amps less than the 12 SEER of the same size. I think I have seen other units rated similarly to yours where a unit was rated slightly lower than the one that was one size smaller. On yours, you are only talking about 1/2 ton difference. You are talking about the nameplate rating, and not the actual amp draw, aren't you? Is so, I wouldn't worry about it. Larry