Appendix C: Network Points List for Chilled Water System Optimizer
Chilled Water System Optimizer v2
CARRIER CORPORATION ©2019
Installation and Start-up Guide
91
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Equipment
Data point
description
Option (O)
or
Required
(X)
Description
Point
Type
Comment
Chilled Water Plant
Tons of cooling
O
Calculated Cooling Tons ANI
If available, can be read from a BTU meter. If
not, Optimizer will calculate Tons using CHW
flow & delta T
Chiller system on/off
X
System CHW Plant
Start/Stop
BNI
Chilled water flow rate
X
Total System CHW Flow ANI
On Pri/Sec systems, use Sec Loop Flow
Condenser water flow
rate
O
Total System CW Flow
ANI
Optional. Can be used for system analysis.
System CHW Setpoint
X
System CHW Setpoint
ANO
This value is optimized CHW setpoint value and
is pushed down to the incumbent control
system.
CHW Setpoint Heartbeat
O
CHW setpoint comm
verification signal to
incumbent BAS
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 modification to the third party
control logic.
System CW Setpoint
X
System CW Setpoint
ANO
This value is optimized CW setpoint value and is
pushed down to the incumbent control system.
CW Setpoint Heartbeat
O
CW setpoint comm
verification signal to
incumbent BAS
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.
Chilled water supply
temperature set point
O
System CHW Setpoint
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.
Chilled water supply
temperature
X
Loop CHW Supply
Water Temp
ANI
On Pri/Sec systems, use Sec Loop Temps
Chilled water return
temperature
X
Loop CHW Return
Water Temp
ANI
On Pri/Sec systems, use Sec Loop Temps
Condenser water supply
temperature
O
Common CW Supply
Temp
ANI
Condenser water return
temperature
O
Common CW Return
Temp
ANI
Condenser water supply
temperature set point
O
System CW Setpoint
ANI
Optional. Can be used to monitor the effective
CW setpoint.
Chillers (Max 8)
Chiller power
X
Power input per chiller
ANI
Inputs can be either amps of kW
Chiller status
X
Chiller run status
BNI
Appendix C: Network Points List for Chilled Water System Optimizer
