Re: 220 wire size Hello buickanddeere and T-Bone

Posted by T_Bone on July 28, 2005 at 12:32:17 from (4.240.42.224):

In Reply to: Re: 220 wire size Hello buickanddeere and T-Bone posted by buickanddeere on July 28, 2005 at 11:02:45:

Hi John,

I'm with BD, more info on the inside unit or air handler as well as distance from load center.

The OS unit, 2-#8awg, 1-#10 neutral, and a #10??? bond ground wire if EPVC, no bond wire if EMT. The neutral will be needed for LV control circuits.

A fused disconnect with-in unit sight is also required. I seam to remember a no more than 6ft rule here for some reason.

A 2" thick concrete pad 4" larger than the condensor unit size is required for the unit to sit on. They use a different term for the concrete pad that I can't remember but most inspectors won't pass anything but concrete or concrete paving blocks layed tightly.

I'm unsure of the minimum bond wire size. Just been to long ago.

T_Bone

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