AC compressors/HACR Fusing

[StevenT]

One of the items I check is the maximum circuit breaker size for a unit and check to make sure that the proper size breaker is in the panel.

Today I came across a matched set of compressors. The 2 ton unit called for a 40amp HACR and the three ton called for a 15 amp HACR.

This seemed quite odd to me, I usually see larger units with larger breakers.

As I said, they are identical units, except size.

[Bain]

How old were the things? It may have something to do with the 13 SEER change. I regularly see newer two-ton units that look big enough to cool a Wal-Mart. The old rule of thumb was that you'd have 10 amps of over-current protection for every ton of capacity.

[StevenT]

The units are brand new. I'm wondering if it's a typo on the label. I find it odd that the smaller unit calls fo a 40, etc., but I'm even more taken back that calls for more than the larger unit.

[Jesse]

Call/email the manufacturer. Most respond quickly with good info.

[StevenT]

Emailed Goodman, waiting for response. It just dosen't sound right to me.