Installed my PD4655 in my 2014 FC 23 FB today, replacing the stock Parallax 7355. Pretty straight forward but were a few differences that I encountered from the provided instructions and updates to Snowy's install pics and instructions (since I chose the remote pendant) as well as some further comments on this thread.
1. You can leave the old 12v
distribution board in place if you wish. Changing out the board is the toughest part of the job. It just won't have the blinking light to indicate charge mode status, nor the override button that allows you to change the charge mode manually.
2. If you choose to leave the old 12v
board in place, but want the functionality of being able to see the blinking light and have the override button, you can order the remote pendant along with your new unit. It's only $15 if you choose to order one along with your new converter. You can then plug it in to the 120v board in your new unit, and mount it outside the louvered cover. Or just leave it inside if you want to have access to it but don't want to see it at a glance.
3. If you want to have the charge status light and the override button, but don't care about the remote pendant, you will replace the existing 12v
board with the new one. Then there is a provided cable that plugs into the new 12v board on one end, and into the 120v board on the new converter. No splicing required. You then need to open the cover whenever you want to see the charge status or override it.
4. I wanted to have the remote pendant to mount outside the cover, but ALSO have the ability to revert to the indicator light and override button that is on the 12v board. This was in case the pendant ever failed, or for whatever reason I decided not to use it. So in my case, I installed the new 12v board. Then I plugged the provided cable into it, but left the other end disconnected and just left it tucked in behind the cover. It's a dead connection so no harm done. This was so I would not lose the cable should I need it later. Then, you plug the pendant into the unused plug on the 120v board that normally would have the cable plugged in. I then mounted the pendant just outside the cover, on the left. Very neat and out of the way, and I can see the charge status at a glance.
5. To use the new 12v board, the heavy red and white battery wires would not reach the lugs on the board, no way were they long enough. I had to remove the four screws securing the entire power center to the wall, and pull it out a few inches...there is enough slack to do so. Then, I loosened the screws on the strain relief on the back of the power center that is holding those wires, so that I could pull a few more inches of both of them into the power center chassis. Then retightened the strain relief and pushed the power center back in. This allowed enough slack of those two fat wires to run up behind the new board as required, and bend over the top for installation in the lugs.
6. The last thing, I installed my 8 or 9 DC distribution wires from the old board to the new board in the exact same fuse positions. After, I realized that the first two positions on the left had the fuses offset a bit higher than the original, and the board had writing on it saying "recommended for low current circuits." I don't think it makes any difference, I believe that is just a place to put low current circuits that might be required in other applications/rv's, and have them be obvious by the offset fuse positions. In my case, all the fuses were 15A, so I have 15A fuses in those first two positions. I emailed Randy to ask if it actually matters--and if so, will just have to move my DC distribution wires 2 places to the right and leave the "low current" fuse places empty.
That's about it. Oh yeah...make sure you remember that there are four new screws provided to put the cover back on...they are smaller than the stock ones, which are too big to fit the holes in the new unit. Took me about a half hour of cussing before I figured out I had put them aside earlier and forgotten about them.
Overall, pretty easy. I'd recommend taking some photos before you take stuff apart though just to be sure of what wires go where. Mine's in the driveway on shore power so hopefully there won't be a heap of melted aluminum in the morning.
Sorry for the sideways pic, it uploaded straight but posted this way.