Specifications are subject to change. See bluesea.com/P12 for current information.
Optional Installation
(continued)
ML-ACR Installation Instructions
(PN 7620 and PN 7622)
to Enable Start Isolation*
1. Disconnect the black ground wire connected to the ML-ACR wire harness.
2. If present, disconnect all Start Isolation wires connected to the Brown, Green, and Orange wires in ML-ACR wire harness.
NOTE: This connection can be made at the start key switch or at the starter solenoid, but must be to the line that is +12V DC positive only when cranking. Connection to
a line that is positive while the engine is normally running will prevent the charging relay from working properly.
5. Re-connect the black DC Negative (Ground) wire in the ML-ACR wire harness
6. If connecting two ML-ACRs repeat steps 1 through 5 using the second ML-ACR, engine, and the P12 Battery Charger ports associated with ACR 2
4. Connect a wire from the ACR 1 terminal marked “
ES” (Engine Start Switch)
to the terminal or wire running from the start key switch to the starter solenoid.
NOTE: Connecting the
“SI” (Start Isolation)
wire to only one of the ML-ACR isolation wires will not properly integrate the P12 battery charger with your ML-ACR.
3. Connect a wire from the ACR 1 port marked
“SI” (Start Isolation)
on the P12 Battery Charger to both the Brown and Green wires in the ML-ACR wire harness.
23
* The ML-ACRs also support “Engine Isolation” which
keeps an ACR open if two engines are running
simultaneously. Operating in this mode while using
Charger Coordination requires a special installation.
See bluesea.com/P12 for details.
P12
7531 AND 7532 BATTERY CHARGERS
DC GROUND
ENGINE
START
SWITCH
ON
OFF
START
ENGINE START
SWITCH
A
B
ML-Series
Automatic
Charging
Relay
A
B
START ISOLATION #2 (GREEN)
ENGINE ISOLATION #3 (ORANGE)
START ISOLATION #1 (BROWN)
GROUND (BLACK)
ML-Series
Automatic
Charging
Relay
ISOLATION #2 (GREEN)
ISOLATION #3 (ORANGE)
ISOLATION #1 (BROWN)
GROUND (BLACK)
7520
BATTERY CHARGER LED REMOTE
Sold Separately
OPTIONAL CONNECTION
START
HOUSE
START
ON
OFF
START
REMOTE DISPLAY
START ISOLATION (ACR 1)
START ISOLATION (ACR 2)
ENGINE START SWITCH (ACR 1)
OPTIONAL CONNECTION
ENGINE START SWITCH (ACR 2)
