CG-PRC002A-EN
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Ice Making System Controls
The ice making option can be requested
with the chiller. The unit will have two
operating modes, ice making and normal
chilling. In ice making mode the chiller will
operate at total compressor capacity until
the return solution temperature matches
the setpoint for ice making. The chiller
needs two input signals. The first is an on/
off signal for scheduling and the second is
required to switch the unit between ice
making mode and normal operation. The
signals are supplied by a remote building
automation device, such as, for example, a
timer or a manual switch. The signals can
also be supplied by the Tracer System.
Additional Options which Can Also Be
Used
- Signalling Relays
Further Tracer Summit Characteristics-
Trane Chiller Systems Automation
Trane's experience in chillers and controls
makes us the preferred choice for chiller
automation. The Tracer Summit building
automation system from Trane has chiller
control capabilities which are unparalleled
in the industry. Our chiller automation
software is fully developed and tested by
Trane.
Energy Efficiency
Trane chiller automation manages chiller
starts so as to optimize the total energy
efficiency of the equipment. Sophisticated
software automatically determines which
chiller should be operating in response to
the current conditions. The software also
switches automatically between individual
chillers in order to ensure equal operating
time and wear between chillers.
Trane chiller automation allows unique
strategies for energy saving. An example is
the control of pumps and chillers based on
a view of the total energy consumption of
the system. The software intelligently
evaluates and selects the option with least
energy consumption.
Controls
Keeping Operators Informed
It is vital for efficient chiller operation to
ensure that operational personnel have
instant information on what is happening
in the equipment. By clearly describing the
chiller system, drawings with schematic
layouts of chillers, tubing, pumps and
towers allow building operational staff to
monitor all the conditions efficiently. Status
screens show the current conditions and
control actions which have to be taken in
order to increase or decrease chiller
capacity.
Chillers can be monitored and controlled
from a remote location. The Tracer Summit
provides standardized report templates
which list key operational data for problem
solving and performance checking. The
reports for each type of chiller and for chiller
sequencing systems are also
standardized. Detailed reports with chiller
operating times help in planning preventive
maintenance.
Rapid Response in Emergencies
We appreciate the importance of
maintaining chilled water production and at
the same time protecting your chillers from
expensive damage. If water flow into a
chiller's tubing is not detected, the start
sequence is interrupted in order to protect
the chiller and the next chiller within the
sequence is immediately started up to
maintain chilling. Should a problem occur,
the operator receives an alarm warning
and a diagnostic message to help solve
the problem quickly and accurately. An
instant report showing the system status
immediately before it was switched off
helps operators identify the cause. If the
emergency conditions warrant an
immediate manual shutdown the operator
can ignore the automatic control.
Documentation
The comprehensive documentation
covering chiller management practices is
now a fact of life. Trane chiller system
automation generates the reports defined
in the ASHRAE Guidelines.
ICS or Integrated Comfort System
Capabilities
When it is integrated with a tracer Summit
management system, Trane chiller
automation manages the coordination
with the Tracer Summit applications in
order to optimize global building operation.
With this system option, a large part of
Trane's HVAC* and control experience is
used to provide solutions for different parts
of the installation. If your project requires
an interface to other systems the Tracer
Summit system can share data using
BACNet, the ASHRAE open systems
protocol, MODBUS and other protocols
(subject to confirmation).
HVAC = Heating, Ventilation and Air Conditioning
Integrated Comfort
System
