capacity of the new converter and would be required to safely carry the additional amperage the
battery may require during battery recharging. For #8 AWG minimum with a 90 degree Celsius
insulation rating a 50-55-ampere maximum battery breaker or fuse is appropriate.
Note-
Parallax Power does not recommend installing a model 7465 if the RV is equipped with 30
ampere AC input service due to the 30 ampere AC maximum input current limitation.
DC Wiring
If the 3200 series converter/charger
has
an internal DC Fuse
Block (option B or T), You will also need to install an FB series
external DC Fuse Panel (see photo to right). The FB series Fuse
Panel is required because a 7400 series does not contain an
internal DC Fuse Panel. It is not safe to mount the 3200 series
internal Fuse Block in any location external of the original
mounting location in the 3200 series.
A “typical connection diagram” for 12-volt DC system
interconnections utilizing a 7400 series and an FB series Fuse
Panel is included as part of the document referenced by the link
below.
FB Series Fuse Panel
Use the “typical connection diagram” to move circuit connections from the old 3200 series Fuse
Block to the new FB series DC Fuse Panel.
http://www.parallaxpower.com/Dist_Panl/FB%20Series.pdf
If the 3200 series converter/charger did not have the internal Fuse Panel proceed as follows:
1. The 3200 series wiring has a blue “converter output” and a red “charger output” (or red
“battery” connection for models 3215/3215UL). Connect any wiring that was connected
to these red and blue leads together and connect them to the positive DC output terminal
on the 7400 series.
2. Any wiring connected to the white DC negative lead of the 3200 series will be connected
to the DC negative output terminal of the new 7400 series converter/charger.
3. Remove the AC bonding conductor from the 3200 series bonding conductor lug and
connect it to the 7400 series bonding conductor lug on the side of the 7400 series unit.
AC Wiring
The 7400 series converter has a 120 volt Cord Set and requires a 15 ampere 120VAC supply
circuit for the cord set to plug in to.
If the 3200 Series
does not
have the 120-volt Cord Set (option X) and was “hardwired” to the
AC breaker panel for the 120 VAC supply, have the technician or electrician install a 120VAC
receptacle and outlet box appropriately rated for the amperage rating of the “Romex” or supply
wiring it will be connected to. The AC circuit breaker amperage rating protecting the supply
wiring must also be appropriate for the amperage rating of the supply wiring used.
Date of Publication 07/27/2006
Rev A
All information, drawings, flowcharts, and schematics are the property of Parallax Power Supply L.L.C. All
rights reserved. Service or installation information provided solely for use by Licensed Electricians and Certified
RV Technicians.
Refer installation and servicing to qualified service personnel.
No endorsement of technical
expertise, arising from the use of the information supplied is either expressed or implied. Information believed to
be accurate at the time of publication.
