Blue Sea Systems P12 user manual Installation Instructions, Installation Steps, AC Strain Relief

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Installation Instructions

P12

7521 AND 7522 BATTERY CHARGERS

The P12 Battery Charger default startup mode is “User”. The battery charger will maintain a voltage but will not charge batteries in this mode. After proper installation see page 11 to set up your battery type.

Installation Steps

1. Before beginning electrical installation, disconnect all positive and negative AC and DC power sources.

DC

AC

2.To reduce the risk of electrical shock, mount the battery charger vertically, in a dry and well ventilated location. For drip proof installation, mount the battery charger in a vertical orientation.

NOTE: The charger should be located near the batteries to minimize wire length and its associated voltage drop to maximize charging efficiency. If the batteries are not close together, place the charger near the largest bank of batteries.

3. Remove the AC/DC termination cover by unlatching the yellow tabs. The cover hinges downward as shown.

4.Then remove the AC and DC wire termination strain relief by unfastening the screws.

AC Strain Relief

DC Strain Relief

5.Route DC wires from each charger output to battery fuse holder, see Wiring Connections Diagram page 10.

NOTE: DC wiring should safely reach each battery positive and the battery negative common bus bar. Fuses should be installed at the battery positive connections to prevent battery power from feeding back into a fault in the wiring, or in the battery charger. See Table A and B on page 5 for recommended values.

Best practices and ABYC standards recommend that every positive wire on the boat outside the engine starting circuit most have circuit protection. Please reference ABYC E-11 electrical standard for the most up to date recommendations.

Specifications are subject to change. See bluesea.com/P12 for current information.

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Contents P12 Page Table of Contents P12 P12 Battery Charger Overview Charging Specifications Installation Clearances Product DimensionsIncluded Components Accessory PackRing terminals Supplies NeededSocket wrench AC Strain Relief Installation InstructionsInstallation Steps Optional Installations see pages Wiring ConnectionsInitial Charger Setup Advanced Charger Setup Reset to Manufacturer Defaults Absorption Parameters and Timers Battery Temperature Compensation Tempco Temperature ParametersMinimum Charge Temperature The default is 0ºC Maximum Charge Temperature The default is 50ºCEqualization Process EqualizationDefinition of Equalization Prior to EqualizationP12 Screen Summary Configuration MenuDisplay Setup Charger SetupSystem Status Hour Meter Temperature ParametersSystem Status Absorb Timers System StatusAlert Screens and Diagnostics DC Fuse AC Input Voltage Too LowAC Input Voltage Too High DC Output Voltage Too HighOptional Connection Fuse Optional InstallationSI ES ES SI Engine ACR Four Control Buttons Optional AccessorySpecifications Cable ConnectionDimensioned Drawing Charge Stage Display IndicatorsFan Mode ChargingButtons Alerts and DiagnosticsRelated Products Warranty and Contact InformationDate of first purchase means Blue Sea Systems Technical SupportP12 Charge Management System Twin Engine980012000 Rev