Originally Posted By: jpeck
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Except when you get to Carrier air handlers.
Now that becomes a problem. The 002 air handler can be used with many sizes of condenser units - talked to the factory just last week on this.
Carrier used to give the size in the air handler model number, then they changed the coding.
I was told that 001 was 1 1/2 ton. That 002 was 2 ton. That 003 was 2 1/2 ton. That 004 was 3 ton. That 004 was 3 1/2 ton. That 005 was 4 ton. That 006 was 5 ton. Yep, they said no 4 1/2 ton.
Then I call next week to clarify that I was told right. And find out I was told wrong.
The 002 can be used with condenser units from 2 ton to 4 ton, depending on various other things the a/c contractor is trying to accomplish. But the 003 can be used from 2 ton to 4 ton too.
I stopped asking as it really did not matter any more. I was told that the only way to know was to call the a/c company which installed the units and have them explain their sizing choice to me. That is not going to happen.