chevyx92
Senior Member
- Location
- VA BCH, VA
Came across a job where there had been 3 different electrical contractors on the job, why they didn't finish is beyond me. Needless to say there are a ton of things left undone. My first issue is the unit in the attic has a #2 Alum SEU cable ran to just coiled up not hooked in yet. We are under the 2008 NEC as well. I looked at the heat strips and they are 3 strip kit for a total of up to 14.8KW. The electrical connections in the unit provide L1, L2, L3, L4 (L1, L2 are fused at 60A) and (L3, L4 are fused at 30 A). the 60A fuses protect 2 of the heat strips and the 30A fuses protect the third heat strip. If you see the information label below you will see that L1/L2 MCA is 76.3 amps and L3/L4 MCA is 22.7 amps. How can they require 76.3 MCA if inside the unit they have factory 60A fuses? Also it seems to me that they should have ran a 2nd circuit for the 3rd heat strip? I don't see how the #2 SEU will suffice for all this, do you? I see the #2 SEU only good for 75 Amps. Need a little help here from all you resi guys that deal with this on a consistent basis please.