Nick,

Questions from non-inspectors are always welcome. No buzzing-off necessary.

You might check the link that Phillip posted. While the original question and pics have been deleted for some unknown reason, the answers are still there and Richard Rushing posted a diagram. If I am correct in my interpretation, JP's code reference requires an "air-gap" or separation between the coil box and the sink drain connection. I would guess that the best place for that would be in the vertical section of pipe after the p-trap (using R.R.s diagram). That should also prevent air from being forced down the pipe and into the sink drain.

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What is the circumference of a moose?