Chris-Craft Lancer 20 Owner's Manual page 107

Launch 28/Corsair 28 Single Engine Configuration
Refrigerator option installed:
• Adds voltage sensing relay for battery charging purposes.
• House battery is used to switch on the following components:
– Helm components
– Refrigerator
– Amplifier
– Stereo
• Voltage-sensing relay allows House battery to be charged by batteries 1 and/or 2 as long as they are charged to
13.7 volts.
Refrigerator option not installed:
• The battery switch is an ON-OFF type switch with one battery switching all switched items.
Launch 28/Corsair 28 Twin Engine Configuration
Refrigerator option not installed:
• Two batteries installed: Port Start, Starboard Start.
• The battery switch indicates positions 1, 2, BOTH, or OFF.
• Position 1 draws and charges battery 1 from both engine alternators.
• Position 2 draws and charges battery 2 from both engine alternators.
• Position BOTH draws and charges both batteries from both engine alternators.
• Position OFF only the non-switched items are active and only the battery charger will charge the batteries.
Refrigerator option installed:
• Adds House battery to system.
• Adds voltage sensing relay for battery charging purposes.
• House battery is used to switch on the following components:
– Helm components
– Amplifier
– Stereo
• Voltage-sensing relay allows House battery to be charged by batteries 1 and/or 2 as long as they are charged to
13.7 volts.
Chris-Craft
Systems
3–45