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Appendix C: Network Points List for Chilled Water System Optimizer
Equipment
Data point
description
Chilled Water Plant
Tons of cooling
Chiller system on/off
Chilled water flow rate
Condenser water flow
rate
System CHW Setpoint
CHW Setpoint Heartbeat
System CW Setpoint
CW Setpoint Heartbeat
Chilled water supply
temperature set point
Chilled water supply
temperature
Chilled water return
temperature
Condenser water supply
temperature
Condenser water return
temperature
Condenser water supply
temperature set point
Chillers (Max 8)
Chiller power
Chiller status
Chilled Water System Optimizer v2
Installation and Start-up Guide
Appendix C: Network Points List for Chilled Water System Optimizer
Option (O)
Description
or
Required
(X)
O
Calculated Cooling Tons ANI
System CHW Plant
X
Start/Stop
X
Total System CHW Flow ANI
O
Total System CW Flow
X
System CHW Setpoint
CHW setpoint comm
O
verification signal to
incumbent BAS
X
System CW Setpoint
O
CW setpoint comm
verification signal to
incumbent BAS
O
System CHW Setpoint
X
Loop CHW Supply
Water Temp
Loop CHW Return
X
Water Temp
Common CW Supply
O
Temp
O
Common CW Return
Temp
O
System CW Setpoint
Power input per chiller
X
X
Chiller run status
91
Point
Comment
Type
If available, can be read from a BTU meter. If
not, Optimizer will calculate Tons using CHW
flow & delta T
BNI
On Pri/Sec systems, use Sec Loop Flow
ANI
Optional. Can be used for system analysis.
ANO
This value is optimized CHW setpoint value and
is pushed down to the incumbent control
system.
Optional. This value is used to confirm
ANO
communications between the Optimizer and the
base control system. It is available in the base
control system if using Carrier ChillerVu control
logic, or modified i-Vu® logic. Third party usage
will require modification to the third party
control logic.
ANO
This value is optimized CW setpoint value and is
pushed down to the incumbent control system.
ANO
Optional. This value is used to confirm
communications between the Optimizer and the
base control system. It is available in the base
control system if using Carrier ChillerVu control
logic, or modified i-Vu® logic. Third party usage
will require modifying to the third party control
logic.
ANI
Optional. Can be used to monitor the effective
CHW setpoint, or can be used by the Optimizer
such that it starts its setpoint calculations from
current setpoint.
ANI
On Pri/Sec systems, use Sec Loop Temps
ANI
On Pri/Sec systems, use Sec Loop Temps
ANI
ANI
ANI
Optional. Can be used to monitor the effective
CW setpoint.
ANI
Inputs can be either amps of kW
BNI
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