Bci-C Alarming - Trane CGAM Installation & Operation Manual

Installation - Electrical
Table 48. All Object Types Sorted by Object Name (
(a)
Object Identifier Object Name
Binary Input, 1 Run Enabled
Binary Input, 2 Local Setpoint Control
Binary Input, 3 Capacity Limited
Binary Input, 4 Chiller Running State
Binary Input, 5 Condenser Water Flow Status
Binary Input, 6 Maximum Capacity
Binary Input, 7 Head Relief Request
Binary Input, 9 Compressor 1A Running
Binary Input, 10 Compressor 1B Running
Binary Input, 11 Compressor 2A Running
Binary Input, 12 Compressor 2B Running
Binary Input, 17 Evaporator Water Pump Request
Binary Input, 19 Condenser Water Pump Request
Binary Input, 20 Noise Reduction Active
Binary Input, 22 Evaporator Water Flow Status
Binary Input, 23 Alarm Present
Binary Input, 24 Shutdown Alarm Present
Binary Input, 25 Last Diagnostic
(a) AI=Analog Input, AO=Analog Output, AV=Analog Value, BI=Binary Input, BO=Binary Output, MI=Multistate Input, MO=Multistate Output

BCI-C Alarming

The BCI-C unit has three binary input points that are used
for communicating alarms and one binary output point
that is used to reset alarms remotely.Those inputs and
output points are:
• BI 23; Alarm Present–This object indicates if any
alarms are active regardless of severity. A notification
will be sent to any recipients of the Information
Notification Class object when the point transitions
from No Alarm to Alarm.
• BI 24; Shutdown Alarm Present–This object
indicates if any alarms that result in the shutdown of
the chiller are active. A notification will be sent to any
recipients of the Critical Notification Class object when
the point transitions from No Alarm to Alarm.
• BI 25; Last Diagnostic–The active text of this object
will reflect the description of the last diagnostic to
occur on the chiller.
• BO 2; Remote Diagnostic Reset Command–This
object is used to remotely reset diagnostics on the
chiller. Immediately after commanding this point value
to 1, the BCI-C will send the reset command to the
chiller and set this point value back to 0 and clear the
priority array.
CG-SVX17E-EN
Refer to previous tables for detailed descriptions of objects
Description
Indicates if the chiller is available to run or is currently running.
Indicates if the chiller is being controlled by local setpoints instead of
BAS setpoints.
Indicates if conditions may exist that prevent the chiller from reaching
setpoint.
Indicates if the chiller is running or stopped.
Condenser water flow status.
Indicates if all available chiller capacity is being used.
Indicates if the chiller is asking an outside system to provide more heat
Indicates if compressor 1A is running.
Indicates if compressor 1B is running.
Indicates if compressor 2A is running.
Indicates if compressor 2B is running.
Indicates a request from the chiller to turn on the evaporator water
pump.
Indicates a request from the chiller to turn on the condenser water
pump.
Indicates if the chiller is in a state where noise is being reduced.
Indicates if water is flowing through the evaporator.
Indicates if an alarm is active.
Indicates if a shutdown alarm is present.
Indicates the last diagnostic for the chiller.
Note: Not all diagnostics are able to be reset remotely.
Some will require local reset at the chiller front
panel.
) (continued)
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