This applies to all PD models
Replacing the DC fuse board may be difficult due to the shortness of the 6-gauge wires from the coach batteries. The Parallax DC board is sufficient for powering the DC circuits in the coach. so replacement is not required. If the wire lengths permit installing the new DC board it will give you two more circuits plus the function of a blinking light showing which fuse is blown.
The “Charge Wizard” feature in the new PD system is not necessary to properly operate the new converter. However, it is useful for setting the charge rate to float for long-term storage.
The AC black, white & green wires from the PD 4655 converter go to the AC breakers above. Just reinstall those wires where the Parallax AC wires were removed. The black (+) & white (-) DC wires from the left side of the converter board feed to the DC fuse panel in the locations where the Parallax DC cables were removed. Label the wires if you think you might get confused.
A close-up of the AC side connections and breakers.The black AC wire goes up to the AC converter breaker and the white wire to the lower buss bar & green wire go to the buss bar to the left (ground).
The black DC (+) wire attaches at the +UCC screw down terminal and the white attaches at NEG screw down terminal as shown below. If you are careful making these two wire attachments I don’t think you need to turn off the DC from the batteries. If you want, trip the in-line resettable fuse and remove the fuse from the solar panel. The orange wire with the fuse to the +UCC terminal is the feed from the solar panel. Once these two DC wires are attached, replace the covers and you are finished!
Ensure all wires are securely tightened. Even the DC wires that you did not remove if you did not replace the DC board. It's good practice to check tightness every year.