Guest 2722-B Owner's Manual page 5

Overload Protection
If an electrical short or overload (excessive demand) occurs in the DC wiring
connected to this charger. The charger will reduce its output voltage to avoid internal
damage. The Guest model 2722-B has initial electronic current limiting. When an
electrical short occurs, the red LED on the front panel will be on. The overload or
short must be removed in order for the charger to start charging again.
The LED Function Chart below describes the charging process.
Display
Red
Green
Red
Green
Red
Green
BOTH LEDs
OFF
I-27122 Rev E
When the red LED is on, it indicates that your batteries are discharged
and the model 2722-B is recharging them at the "BULK" rate (stage 1).
This charging rate is 15 Amps.
While the red LED is on, the voltage measured (with the charger on) will
be 11.8 to 14.20 Volts.
If the red LED stays on for more than 24 hours, refer to Problem 1 in the
troubleshooting section in this manual.
When both the green and the red LED's are on, the 2722-B is charging
at an "ABSORPTION" rate (stage 2). This mode of charging gradually
"tops off" your batteries, and reduces harmful sulfating. While both
LED's are on, the voltage measured (with the charger on) should be
approx. 14.20 to 14.80 VDC.
If both lights stay on longer than 24 hours, refer to Problem 2 in the
troubleshooting section in this manual.
When the green LED is on, the model 2722-B is charging at a "FLOAT"
or "MAINTENANCE" rate of less than 1.5 Amps, (stage 3). Your
batteries are now 90% charged and ready for use. This "float" charging
current will gradually decrease to as low as 0.1 Amps as the batteries
reach 100% charge. They will now be kept at full charge without over-
charging.
If the green LED stays on when your battery is known to be low, refer to
Problem 3 in the troubleshooting section in this manual.
If the timer feature is active only the Green LED will be on at a Float
voltage of 13.30 VDC while still maintaining output current.
Refer to trouble shooting section in this manual.
Operating condition
5
EC 3429