Blue Sea Systems Yard Vacuum PN 8081 User Manual

WARNING  
Marine Electrical Products  
@ꢀ  
It is not possible within the scope of these instructions to fully acquaint  
the installer with all the knowledge of electrical systems that may be  
necessary to correctly install this product. If the installer is not  
knowledgeable in electrical systems we recommend that an electrical  
professional be retained to make the installation.  
DC Power Distribution Panel  
PN 8081 / PN 3081 5 Position  
PN 8082 / PN 3082 10 Position  
@If either the panel front or back is to be exposed to water it must be  
protected with a waterproof shield.  
Panel Specications  
Material:  
0.125” 5052-H32 Aluminum Alloy  
@ꢀ  
The panels must not be installed in explosive environments such as  
gasoline engine rooms or battery compartments as the circuit breakers  
are not ignition proof.  
Primary Finish:  
Chemical Treatment per Mil Spec C-5541C  
Final Panel Finish: Graphite color 2 part textured Polyurethane  
Circuit Breakers:  
15 Ampere AC/DC magnetic  
65V DC/277V AC Maximum  
@ꢀ  
The main positive connection must be disconnected at the battery post  
to avoid the possibility of a short circuit during the installation of this  
distribution panel.  
Amperage Rating: All components are sized for 100 Amperes of  
continuous current  
Voltage Rating:  
Panels are rated for 12 volts DC. Panels can be  
upgraded to 24 volts with PN 8243, 18-32V DC Micro  
Voltmeter.  
8-16 Volt DC meter. Accuracy 3% of scale  
0-50 Ampere DC meter. Accuracy 3% of scale  
50 Millivolt = 50 Ampere resistive manganin element  
Guarantee  
Any Blue Sea Systems product with which a customer is not satised  
may be returned for a refund or replacement at any time.  
Voltmeter Rating:  
Ammeter Rating:  
External Shunt:  
Useful Reference Books  
Calder, Nigel, 1996: Boatowner’s Mechanical and Electrical Manual,  
2nd edition, Blue Ridge Summit, PA: TAB Books, Inc.  
Wing, Charlie, 1993: Boatowner’s Illustrated Handbook of Wiring,  
Blue Ridge Summit, PA: TAB Books, Inc.  
PN  
Inches  
Millimeters  
Overall Dimensions: 8082/3082 5-1/4 x 11-1/4  
8081/3081 5-1/4 x 7-1/2  
Mounting Centers: 8082/3082 4-7/16 x 10-7/16 112.70 x 265.10  
8081/3081 4-7/16 x 6-11/16 112.70 x 169.90  
133.40 x 190.50  
133.40 x 190.50  
Related Products from Blue Sea Systems  
PanelBack Insulating Covers  
Applicable Standards  
High Amperage Fuses and Circuit Breakers for positive feed wires  
High Amperage Battery Switches  
Terminal Blocks and Common Bus Connectors  
AC and DC Voltmeters and Ammeters  
• United States Coast Guard 33 CFR Sub Part 1, Electrical Systems.  
• American Boat and Yacht Council (ABYC) Standards and  
Recommended Practices for Small Craft sections: E-1, E-3, E-9.  
Blue Sea Systems Inc.  
425 Sequoia Drive  
Phone (360) 738-8230  
Fax (360) 734-4195  
Bellingham, WA 98226 USA  
Document 9863 Rev.H  
Installation  
between the panel and the batteries in 12 volt systems. Refer to the  
Wire Sizing Chart for other situations.  
1. Disconnect all AC and DC power  
Before starting, disconnect the main positive cable from all batteries to  
eliminate the possibility of a short circuit while installing the distribution  
panel. Also disconnect the AC shore power cord from the boat to  
eliminate the possibility of electrocution from AC wiring in the proximity  
of the DC distribution panel.  
Remember that the length of the circuit is the total of the positive wire  
from the power source and the negative wire back to the DC negative  
bus. Be certain that there is a fuse or circuit breaker of the correct size  
protecting the positive feed wire.  
2. Optional - Upgrading to 24 Volts  
6. Install shunt, positive feed wire and negative return  
The panel is supplied with an external shunt ammeter that must be  
connected in the positive feed line to the panel. The shunt may be  
mounted at any point in the feed line, but mounting it close to the panel  
will keep the sense wires that run to the meter short, minimizing  
voltage loss and interference, creating the most accurate meter  
reading.  
Remove and replace the existing 8-16V DC voltmeter with an 18-32V  
DC voltmeter (PN 8243). Connect the existing meter sense wires to the  
new meter, Red Positive wire to + and Yellow negative wire to -.  
3. Apply Voltage Label  
All panel components are sized for 12 or 24 Volt systems. Use the  
labels provided to permanently identify the system voltage and its type  
(DC) as required by ABYC. Apply the appropriate voltage label to the  
recessed area on the front of the panel.  
Connect the positive feed wire from the positive source to either of the  
2 large bolt terminals on the shunt top. This is now the shunt positive  
terminal. Connect an additional length of feed wire from the remaining  
shunt terminal, now the negative terminal, to the panel positive bus.  
Next, connect a minimum 16 AWG red wire from the screw on the side  
of the shunt positive terminal to the meter positive terminal and  
connect a black or yellow wire from the shunt negative terminal to the  
meter negative terminal. There should be a 1 ampere fuse in the  
positive sense wire near the shunt terminal. Be certain that on all 4  
shunt connections the wire ring terminals sit directly on the brass  
blocks of the shunt without any washers in between.  
4. Select mounting location and cut opening  
Select a mounting location which is protected from water on the panel  
front and back and is not in an area where ammable vapors from  
propane, gas or lead acid batteries accumulate. The circuit breakers  
used in marine electrical panels are not ignition protected and may  
ignite such vapors.  
Using the panel template provided, make a cut out in the mounting  
surface where the distribution panel is to be mounted. Do not fasten  
the panel to the mounting surface.  
Connect a negative return wire from the negative bus on the panel to  
DC negative.  
5. Select positive feed wire and negative return  
Determine the positive feed (red) and negative return (black or yellow)  
wire size by calculating the total amperage of the circuits that will be  
routed through the panel. Blue Sea Systems’ electrical panels are  
rated at 100 ampere total capacity. The positive feed wire must be  
sized for 3% voltage drop at the 100 ampere panel rating or the  
maximum amperage that will be routed through the panel in any  
particular installation, whichever is less. It is recommended that the  
positive feed wire be sized for the full panel capacity, which in most  
cases, will require at least 2 AWG wire, assuming a 10 foot wire run  
7. Install battery bank voltage monitor wires  
The panel is supplied with a voltmeter and switch to monitor the  
voltage of three separate sources, usually the batteries. Connect a  
minimum 16 AWG red wire from each source to be monitored to each  
of the corresponding input wires of the switch. There should be a 1  
ampere fuse in each positive wire near each source.  
 

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