RKI Instruments 49-8104RK - Manual (Page 7)

49-8104RK Standby Battery • 7
Wiring the Standby Battery to a Controller
WARNING: Always verify that all power to the controller is OFF before you make
wiring connections.
1. Turn off the controller.
2. Turn off or unplug power to the controller.
3. Install an appropriately rated cable bushing or conduit to the conduit hub on the
controller that will be used for wires from the standby battery.
4. Open the standby battery housing door.
5. Install an appropriately rated cable bushing or conduit to the conduit hub on the
standby battery housing.
6. Route two wires in conduit or a two wire cable with wires from the controller conduit
hub to the standby battery conduit hub. 16 AWG wire is recommended, but the wire
nuts will accommodate wire up to 14 AWG wire.
7. Connect the two wires to the 24 VDC power input terminals at the controller. Note
which wire is positive and which wire is negative.
8. A short factory installed jumper wire terminated with push-on lugs connects the two
batteries in the standby battery. Remove this wire from one of the battery terminals
and make sure it is not contacting the terminal.
9. When the standby battery is shipped from the factory, the ends of the two wires
provided for external wiring connections are covered with shrink tubing to prevent
shorting of the batteries during shipment. Remove the shrink tubing and strip the end
of each wire. Take care not to short the wires to the mounting bracket or to each other.