Kjay:
Basically, all the ECs I know would rather install a direct line for the DW and GD, as on rough the appliance info may not be available.
The DWs I've seen recently are in the 9.x to 12.x amp ranges, from nameplates. The GDs are a tough 'read' under the sinks and the booklets range from 1/2HP to a few 3/4 units.
