Blue Sea Systems 8498 AC 3 Sources - Horizontal - Manual (Page 2)

Installation (continued)
4. Installation of Backlight System
The backlight board is a DC device. When installing it in an AC panel
both wire leads must be connected to an appropriate DC source and
ground.
Connect the yellow negative wire to a DC ground. Connect the red
positive wire to any DC positive supply, usually a switch that controls
the vessel’s other nighttime illumination.
5. Apply circuit labels and mount panel
Apply a label for each circuit from the 10 basic labels provided. Fasten
the panel to the mounting surface.
6. Testing
@
Connect the shore power cables to the boat AC power inlet. Do
not connect the shore power cables to the shore power pedestal.
Instead run the shore power cable such that the shore power plug
is next to the AC panel. With an Ohmmeter verify that the pins of
the shore power plugs are connected to the appropriate terminals of
the panel. Refer to ABYC E-11 Figure 13 or 14 or NEC / NEMA or
locally approproiate documents for the standard pin arrangements
for your plug.
@
Connect the vessel’s shore 1, shore 2, and genset power and verify
the Reverse Polarity lights are not illuminated. Verify that the green
LEDs are illuminated to ensure that power is present at the panel.
If the red Reverse Polarity light is on then either the hot and ground
or the hot and neutral wires have been crossed. Starting at the
panel, trace the connections back as far as necessary to locate the
error.
@
Using a multimeter where the shore power is connected to the panel
verify:
PN 8498 / PN 3498 - 120 Volt AC
a. 120 volts between hot and neutral
(nominal, this may vary depending on source voltage)
b. 120 volts between hot and ground.
c. 0 volts between neutral and ground.
PN 8598 / PN 3598 - 230 Volt AC
a. 230 volts between hot and neutral
(nominal, this may vary depending on source voltage)
b. 230 volts between hot and ground.
c. 0 volts between neutral and ground.
@
Turn off the shore power and test with the alternate source.
The Purpose of the AC Main Source Selector Panel
Two live sources of AC power, such as shore power and inverter
power, or shore power and a generator, cannot be electrically con-
nected. The AC Main Source Selector panel is designed to prevent
both sources from being connected to the circuit simultaneously.
The Purpose of a Panel
There are six purposes of a marine electrical panel:
• Power distribution
• Circuit (wire) protection
• Circuit ON/OFF switching
• Reverse Polarity Indication
• Metering of voltage and amperage (In panels with meters)
• Condition Indication (circuit energized)
Applicable Standards
• American Boat and Yacht Council (ABYC) Standards and recom-
mended Practices for Small Crafts sections: E-8, Alternating Current
Electrical Systems on Boats.
• United States Coast Guard Code of Federal Regulations 33, Part 183,
Subpart I, Electrical Systems on Boats.
Related Products from Blue Sea Systems
• High Amperage Fuses and Circuit Breakers for positive feed wires
• High
Amperage Battery Switches
• Terminal Blocks and Common Bus Connectors
• AC Distribution Panels
• DC Distribution Panels
• AC and DC Digital and Analog Voltmeters and Ammeters
Page 2 of 2
Wiring Diagram
AC Source Selection Panel
PN 8498 / PN 3498