Installation Overview - Carrier OPN-OPT-OL Installation And Startup Manual

Equal-sized or unequal-sized

Up to 40 primary, secondary, and/or tertiary variable speed pumps
○
Up to 40 variable speed air handling unit fans serviced by chilled water system
○

Condenser water supply side
Up to 20 condenser water pumps
○
Up to 20 cooling tower variable speed or staged fans
○

Installation overview

WARNING This controller only supports a single Chilled Water System Optimizer program and no other
control programs.
The Chilled Water System Optimizer collects remote power (kW) values and facility thermal load values residing in
other controllers through Network Input points.
The program functions most efficiently and provides increased energy savings if all pumps and fans have variable
frequency drives and as more power inputs are measured, though it is not necessary.
Control Inputs

Power Inputs — Sum of power inputs Σ kW
Chiller power kW (required)
○
Chilled Water Pump kW (required)
○
Cooling Tower Fan kW (optional)
○
Condenser Water Pump kW (optional)
○
Air Handling Unit Fan kW (desirable but not absolutely necessary)
○

Load Input — Total Cooling Load
NOTE This is thermal cooling load in tons, whether calculated from the difference between chilled water
supply and return temperatures and the flow rate, or tonnage that is read directly.

Result — kW/Ton (Dividing total kW by the thermal load equals the efficiency benchmark of kW/ton)
Control Outputs – Network Outputs
The optimization program has only two control outputs. They are either Network Outputs or BACnet Analog Values.

Chilled water supply temperature reset

Condenser water supply temperature setpoint
Chilled Water System Optimizer v2
Installation and Start-up Guide
What is the Chilled Water System Optimizer?
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