Trane Centrifugal Water Chillers CVGF - Manual (Page 9)

• Time of day scheduling: allows the end user to defi ne the occupancy period, i.e. time of the
day, holiday periods and exception schedules.
• Optimization of the start/stop time of the installation: based on the programmed schedule
of occupancy and on the historical temperature records, Tracer Summit TM calculates the optimal
start/stop time of the installation to get the best compromise between energy savings and
comfort of the occupants.
• Soft loading: the soft loading function minimizes the number of chillers that are operated to
satisfy a large chilled-water-loop pull down, thus preventing an overshoot of the actual capacity
required. Unnecessary starts are avoided and the peak current demand is lowered.
• Communication capabilities: local, through a PC workstation keyboard Tracer Summit TM
can be programmed to send messages to local or remote workstations and or a pager in the
following cases:
—Analog parameter exceeding a programmed value.
—Maintenance warning.
—Component failure alarm.
—Critical alarm messages. In this latter case, the message is displayed until the operator
acknowledges the receipt of the information. From the remote station it is also possible to
access and modify the chiller plant’s control parameters.
• Remote communication through a modem: As an option, a modem can be connected to
communicate the plant operation parameters through voice grade phone lines.
The remote terminal is a PC workstation equipped with a modem and software to display the
remote plant parameters.
Chiller-Tower Optimization
Tracer Summit™ chiller-tower optimization extends Adaptive Control™ to the rest of the chiller
plant. Chiller-tower optimization is a unique control algorithm for managing the chiller and cooling-
tower subsystem. It considers the chiller load and real-time ambient conditions, then optimizes the
tower setpoint temperature to maximize the effi ciency of the subsystem.
Integrated Comfort™ System (ICS)
The onboard Tracer chiller controller is designed to be able to communicate with a wide range of
building automation systems. To take full advantage of the capabilities of the chiller, incorporate
your chiller into a Tracer Summit building automation system.
But the benefi ts do not stop at the chiller plant. At Trane, we realize that all energy used in your
cooling system is important. That is why we worked closely with other equipment manufacturers
to predict the energy required by the entire system. We used this information to create patented
control logic for optimizing the HVAC system effi ciency.
The building owner’s challenge is to tie components and applications expertise into a single
reliable system that provides maximum comfort, control and effi ciency. Trane’s Integrated-Comfort
™ Systems (ICS) are a concept that combines system components, controls and engineering
applications expertise into a single, logical and effi cient system. These advanced controls are fully
commissioned and available on every piece of Trane equipment, from the largest chiller to the
smallest VAV box. As a manufacturer, only Trane offers this universe of equipment, controls and
factory installation and verifi cation.
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Features and Benefi ts
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