Please review the 'CABLING the 6RDDJ22' section for cabling instructions. All instructions for the 6RDDJ22 are appropriate for the 4RDDJ22 with the exception of the fact that there is not a down drain to be cabled within the 0525F10000. There may be a down spout off of the exterior scupper box which would require cabling to the bottom discharge point.