Carrier AquaSnap 30RAP011-060 Controls, Start-Up, Operation, Service, And Troubleshooting page 131

If the UPC Open is used with the chiller application of Lead/Lag/
Standby, all chillers and UPC Open's CCN element numbers must
be changed to a unique number in order to follow CCN specifica-
tions. In this application, there can only be a maximum of 3 UPC
Open controllers on a CCN bus.
For the CCN Alarm Acknowledger configuration, the UPC Open
defaults to CCN Acknowledger. If a Chiller Lead/Lag/Standby ap-
plication is being used, then the Carrier technician must change
the configuration to only one CCN Acknowledger on the CCN
bus.
For the CCN Time Broadcaster configuration, the UPC Open de-
faults to CCN Time Broadcaster. If the Chiller Lead/Lag/Standby
application is used, then the Carrier technician must change the
configuration to only one CCN Time Broadcaster on the CCN
bus.
TROUBLESHOOTING
If there are problems wiring or addressing the UPC Open control-
ler, contact Carrier Technical Support.
COMMUNICATION LEDS
The LEDs indicate if the controller is communicating with the de-
vices on the network. See Tables E and F. The LEDs should re-
LED
Lights when power is being supplied to the controller. The UPC Open controller is protected by internal solid-state polyswitches on
POWER
the incoming power and network connections. These polyswitches are not replaceable and will reset themselves if the condition that
caused the fault returns to normal.
RX Lights when the controller receives data from the network segment; there is an Rx LED for Ports 1 and 2.
TX Lights when the controller transmits data to the network segment; there is a Tx LED for Ports 1 and 2.
RUN
Lights based on controller status. See Table F.
ERROR
Lights based on controller status. See Table F.
Table F — Run and Error LEDs Controller and Network Status Indication
RUN LED
2 flashes per second Off
2 flashes per second 2 flashes, alternating with Run LED
2 flashes per second 3 flashes, then off
2 flashes per second 1 flash per second
2 flashes per second On
5 flashes per second On
5 flashes per second Off
7 flashes per second 7 flashes per second, alternating with Run LED
14 flashes per sec-
14 flashes per second, alternating with Run LED
ond
APPENDIX D — BACNET COMMUNICATION OPTION (cont)
Table E — LED Status Indicators
ERROR LED
flect communication traffic based on the baud rate set. The higher
the baud rate the more solid the LEDs become. See Fig. A for lo-
cation of LEDs on the UPC Open module.
REPLACING THE UPC OPEN BATTERY
The UPC Open controller's 10-year lithium CR2032 battery pro-
vides a minimum of 10,000 hours of data retention during power
outages.
IMPORTANT: Power must be ON to the UPC Open when
replacing the battery, or the date, time, and trend data will be
lost.
Remove the battery from the controller, making note of the bat-
tery's polarity. Insert the new battery, matching the battery's polari-
ty with the polarity indicated on the UPC Open controller.
NETWORK POINTS LIST
The points list for the controller is shown in Table G.
Refer to Appendix B for additional information on CCN point
name.
STATUS
Normal
Five minute auto-restart delay after system error
Controller has just been formatted
Controller is alone on the network
Exec halted after frequent system errors or control programs halted
Exec start-up aborted, Boot is running
Firmware transfer in progress, Boot is running
Ten second recovery period after brownout
Brownout
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STATUS