I just did this yesterday and as I could not find alot on the net before I started I thought I would post what I did. First off I poked and prodded my dishwasher and discovered that under the shell there were leveling leg so wella it will be easier to convert without adding blocks of wood etc. to get it level. Not quite knowing what hardware I needed I took off the shell. this consisted of various screws at sides and back (mine were torque screws but an allen key worked). I also had a wood top which required three screws (open the door and look up) and then a good tug forward got it off. I left the base on for now as it gave me more room underneath to work and I could easily move it around while working. The place I chose to put it was with a few feet of my sink so it made it easier for me. On the down side I had to rip out and rebuild a couple of cabinets (another story).
Note that most dishwashers are 24 inches so that is the room you will need.
Once I opened the can I cut the hoses near the tap filler thingy and cut the cord to get the case out of the way. What I saw inside was that the water line was connected via a hose bib size connection (same as a garden hose). The drain line was clamped into place but looking at the input line I noticed that it was enlarged meaning that the hose had lots of give and as it was in good condition and would reach my under the sink garbage disposal I ran it under hot water (and used a hot air gun) and attached it to my garbage disposal input for dishwashers (temporary).
Under my sink I had the normal configuration of copper pipes and shut off valves. At this point I decided to install it below the shut off valve due to wanting to keep it low for later set up with the dishwasher. I measured the amount of tubing I would need to go from under sink to dishwasher and added up the number of elbows I would need. I also decided to add a shut off valve for the dishwasher in case I ever had to shut it off for repair or replacement.
Not your list may vary.... I decided to got cpvc (plastic pipe) for ease and cost.
Off to home depot...... list
1 copper 1/2 inch tee
I copper 1/2 inch converter (to convert to cpvc, 1/2 copper female (3/8 female thread)
1 pvc connector to attach to above with 1/2 pvc and 2/8 male thread)
4 feet of cpvc
2 90 degree elbows (bought a 45 just in case)
1 shut off valve
1 30 inch flex line (the same thingy one uses under sinks and toilets)
1 hose bib connector
1 coil of 25 feet of wire (white 14-2)
1 clamp (to attach to garbage disposal)
Upon arriving at home depot I found most of the stuff readily EXCEPT I could find no hose type connector that would fit a flex line (1/2 inch) so after searching and racking my brain I found a hose bib connector to go to 1/2 inch male threaded but then the flex line had 1/2 inch on one end (to water supply) and the other end was only 3/8 in (making sure all parts fit before leaving home depot) so I found another copper fitting to go from 1/2 in to 3/8 out.
I attached the hose bib connector to the dishwasher with 1/2 male thread (copper) added reducer 1/2-3/8 to above. Attached to that my 30 inch flex line to the other end of the flex line I used a 1/2 cpvc (male to 1/2 tubing) than about 4 inches of cpvc to and elbow. From the elbow I ran the tubing under the sink and added my shut off valve from the shut of valve I went to the water supple (tee)
to add the tee turn off the water at the main and open your taps cut the copper below the shutoff valve, solder in the tee (in my case) I added the copper to cpvc connectors and screwed them all together. last step was gluing the final piece of cpvc and wella I had water.
Total cost 21.00 (even with a conversion kit most of this would have been needed ie. about 15.00)
So much for the water supply
Next the drain... easy.... I removed the hose I had put on my garbage disposal and (NOTE) I put a screwdriver into the hole and punched out the knockout in the disposal itself (yes there is a knockout in there that has to be punched out) I then ran the line under the sink and put the clamp on the hose.... done.
Now for the electrical... I went to the basement and followed the line that I had previously plugged my dishwasher into. I followed that and found that it was going into a junction box..cool I followed those lines back to the panel to make sure it was not overloaded (I don't think this is necessary because obvioulsy the dishwasher worked there before. I drilled a hole up through the floor to where my dishwasher is (yes I drilled up... cause if you drill down you may hit a joist and then drill forever lol) I then ran the wire up the hole and left enough wire so I could still pull out my dishwasher if needed (this is also why I chose a 30 inch flex line above). I removed the cord from the dishwasher making note of the proper connections and wire nutted and taped the connections. I then taped the line to the frame of the dishwasher in a couple of places so the wire could not be pulled.
Back in the basement I had my wife plug a light into the outlet and flicked the breakers until she yelled at me that the line was dead (I did not really do this as I am used to working with live power.... but you should). I than punched out a knock out in the box and added a wire connector to the box and inserted the wire. Connect the wires to the live feed (black and white from panel) use wire connectors and tape and close the junction box back up.
At this point I went and started up the dishwasher to make sure all worked ok and wella it did. At this point I removed the base of the dishwasher and notice that the water supply thingy was connected to the base... so I fished around inside and found that just off to the left was a place I could connect it with 2 screws... did that.
Next was to put it in place... in my case I had to remove the end cabinet to make room and the original floor was lower than the existing floor so I found some old plywood and leveled off the floor. Once the dishwasher was in place (I also added a piece of insulation on top of the dishwasher and hung it down to the floor on both sides (about 8 feet for quiet). Again on my unit I had leveling leg so I leveled off the dishwasher and again opening the door and looking up there were three screw holes that I used to screw it into the bottom of the counter.
Now in my case as I said I removed a cabinet and it was at the end so I went to home depot and got a sheet of soundproofing material and attached that to the end next to the dishwasher. I than added 1/2 finished plywood to the end of that for finish. When I went to put the base panel back on the dishwasher I noticed that the two bottom screws had no place for attachement (there were attached to the base) so I added a piece of 1x3 to the floor with screws (not tight so they are easily removed ) and attached the two bottom screws to that..
Final notes and thought/warnings
When attaching hoses to dishwasher make sure you use teflon tape (or similar) do not over tighten attachments as the inner workings are plastic and if you break one your in deeeeep doodoo.
If you use copper instead of cpvc the cost of plumbing will be about double, if you do use cpvc ensure you get the proper glue as it is not the same as pvc.
Check the height of the water supply input on your dishwasher and run your tubing at about the same height ie if it is too low or two high it will hit your dish washer when you put it in place. Mine was about 4 inches.
Should you use insulation as I did it may be too thick to fit properly just take off a couple of layers leaving the paper backing
when attaching dishwasher to counter make sure you use SHORT screws nothing worse that having a few screw heads sticking out of your counter.
don't forget the knock out if you are attaching it to the disposal... if you don't have a disposal there is a tee you can attach to your drain (many dishwashers have a built in disposal). This may also be a good time to add that disposal if you were so inclined.
Total time (excluding the rip out of the cabinets) was about 4 hours (one hour at hoe depot)
Total cost (most of which you would need to install a dishwasher anyway) was about 70 bucks including the handy panel for my cabinet.
I guessed the total cost of the conversion (things I would not need for a normal dishwasher installation) was about 8 bucks.
Extra time it took me to install ie convert about 1 hr. (a normal dishwasher would have taken me 3 hours in my case)
Hope this helped and good luck... it was much easier than I had thought