Irritrol IBOC-Plus - Manual (Page 6)

4
HOW THE BACKUP SYSTEM WORKS
The IBOC Plus utilizes non-volatile memory storage to prevent
watering program information from becoming lost in the event of a
power failure. Even the time and date will be retained for the first
10 minutes without power.
A fully charged 6-volt alkaline lantern battery will operate the
controller for more than a year. The SPC-2 (Solar Power Converter)
module will operate the IBOC Plus controller for up to six years,
assuming it receives sunlight for an average of two hours per day.
Once a power source is applied, the controller can be fully
programmed for operation.
Note: If you wish to program the controller prior to installation,
connect the battery at this time. Battery removal will be necessary
prior to installing the controller cabinet. The program memory will be
retained with the battery disconnected.
INSTALLING THE BATTERY
Note: A battery is not provided with the controller. A common 6-volt
alkaline lantern battery (type: NEDA 918A) with screw-type
terminals is required. Use an Energizer type #521, Duracell MN 918 or
equivalent.
Caution: Batteries contain hazardous material. Always handle
and discard batteries properly in accordance with the battery
manufacturer’s recommendations.
1. Remove the phillips screw from the
right edge of the control panel enabling
the panel to swing outward.
2. Install the battery insulator plate (A) and
retainer strap (B) as shown in Figure 3.
3. Install the battery and secure with the
retainer strap.
4. Using the wires provided, connect the
positive (+) battery terminal to the
terminal board terminal labeled “Battery Input.” Connect the
negative (–) battery terminal post to “Battery Gnd.”
Note: The battery condition is displayed as a percentage of capacity
remaining while the controller is idle. The battery should be replaced
when the capacity drops below 40%.
GENERAL INFORMATION
General Information
A
B
Figure 3