PKG-PRC007-EN
36
The
Genius line offers two Control
options: Standard Thermostat or
Microprocessor Control.
Standard Thermostat
All units are supplied with a control
thermostat as standard feature. This
thermostat can be installed remotely or
in the equipment, according to the needs
of the client.
Microprocessor Control
The Microprocessor Control UCP (unit
control processor) is factory assembled
and tested. It controls unit operation in
the independent mode (standalone) or it
allows communication when the unit is
working in an integrated comfort system
(Tracer, Tracer Summit, Tracker).
Some of the main advantages and
benefits of using the microprocessor are:
Great reliability: As we know, this type of
control has demonstrated itself to be
highly reliable, thus avoiding
decalibration or breakdown.
Direct digital control: The Integral
Proportional Control allows more precise
temperature control of the area to be air-
conditioned. In addition, the temperature
sensing instrument is more sensitive
than the one used in traditional cases.
With this instrument joined to the UCP it
is possible to guarantee a setpoint
temperature of + - 0.5F.
Easy diagnosis: The controller allows the
operator to carry out easy and fast test to
verify the operation of the unit
components (fans and compressors).
Low suction pressure during start-up:
The controller ignores the low
pressurestat information during
compressor start-up, thus avoiding that
the unit not start because of the low
pressure. If after 3 minutes the low
pressure is not within the correct range,
the unit will deactivate.
Elimination of Compressor cycling: The
controller allows the compressor to run
for a minimum of three minutes,
followed by three minutes not running
(off) to make sure that there is adequate
oil return to the compressor(s).
Alternation of Compressor operation:
The microprocessor will alternate the
compressors according to the number of
start-ups and hours of operation of each,
Controls
so that the degree of wear will be similar
for each one.
The microprocessor control provides the
option for simple and direct
communication between the
Genius and
TRACKER, Tracer or Tracer Summit
building administrators. This
communication is achieved simply by
interconnecting the
Genius unit and the
building administration system with a
twisted pair cable.
TRACKER
In addition to being able to control the
lighting of your house or building, this
panel can automatically control up to 12
Genius. It also allows sending air
conditioning system alarms to a
Maintenance Central 24 hours a day,
thus making possible various functions:
Schedule programming: On the
TRACKER you do the annual operating
programming of each one of the
interconnected sets of equipment with
the possibility of setting two different
schedules for the initiation and
termination of operation for weekdays,
weekends and holidays. The objective is
to use the equipment only when
necessary. There is no need for you to
waste energy.
Interface with the operator: The
TRACKER has a functional keyboard and
liquid crystal display that provides the
user with a rapid visualization of the
system with a minimum of experience.
Access is restricted with a safety
password.
Zoning: When a variable air volume
system is controlled, it is capable of
independently controlling the
temperature of up to 128 different zones,
thus optimizing the dimensions of your
equipment as well as your investment.
Optimized start-up: The
TRACKER
analyzes the most economical way to
turn on the equipment so that you get
the desired temperature at the
programmed time. This is applicable in
setups where various
Genius units are
interconnected to the control system
and, instead of turning on all of them at
the same time, they are turned on at
different times to avoid peaks in energy
consumption.
Demand limit: Automatically controls
the programmed electricity
consumption limits of the setup. This is
an important economic factor that
makes the cost of the
TRACKER
insignificant when considered on an
annual scale.
Record of tendencies: Records up to 192
temperature values during a time frame
that you determine. This function makes
it possible to do a posterior analysis of
the system’s performance.
Record of alarms: The
TRACKER
immediately identifies any breakdowns
in the system, which register as alarms.
Besides this, the
TRACKER store in its
memory up to 32 alarms with
information including the date and time
of the event.
Access via telephone line: The
TRACKER
can be programmed and supervised
through the telephone line. It can also, in
the same way, send warnings
concerning any alarms.
Easy installation: The
Genius and the
TRACKER leave the factory already
programmed and tested. Installation and
connection between them is done with a
twisted pair.
For more details, consult the
TRACKER
Engineering Bulletin.
TRACER SUMMIT
This is the controller recommended for
very large installations. The Genius’s
microprocessor is also able to
communicate with the Tracer Summit
which provides complete integration of
these units with the Integrated Comfort
System.
Varitrac is the name Trane has given to
our variable air volume system for small
installations. Airflow through the
Genius
is constant while the air supply to each
zone is variable. So that this will happen,
a bypass gate returns airflow that was
not required by the zones to the system.
The variable air input in each zone is
controlled by a VAV box that includes a
microprocessor controller. This
controller regulates the amount of air
needed to maintain the desired
temperature. A panel called the Central
Control Panel (CCP) is used to program,
supervise and control the Varitrac
system. Trane personnel can program
the
TRACKER and the CCP.
