General information, How the backup system works, Installing the battery – Irritrol IBOC-Plus User Manual

Page 6

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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

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