Specifications

9
Figure 10 - Jumper Settings
Battery Replacement
The 3V battery mounted on the controller
may need to be replaced over time.
To replace the battery do the following:
1. Close all panels that expose high
voltage from the unit.
2. Disconnect the network plug Figure 2
3. Keep 24VAC Power connected
Figure4.
4. Use needle nose pliers to remove the
old battery and insert the new one.
5. Connect network cable and verify Rx
and Tx LEDs are flashing.
6. Check with BAS operator for DDC
functionality
7. After the battery is replaced, if
additional service on the unit is
required follow OSHA standards.
In some cases a controller might experience
RAM memory losses due to:
• “Shorting” across the battery (Lithium
3V, CR2032),
• Low Voltage on the controller (-
10%/+10% on 24vac input), or
• Hi Voltage on the controller Network
Cable (RS485)
Resetting the controller by recycling the
battery power usually resolves this problem.
To do this: remove the 24VAC Unit Power
from the controller for about 5-10 seconds
minimum; pull the battery out; replace the
battery and reconnect power back to the
controller.