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6 RT-PRC005-EN
Features and
Benefits
Micro Controls
Several years ago, Trane was the first to
introduce microprocessor controls into
the Light Commercial Market. That
design, along with immeasurable
experience, has provided the technology
for Trane’s second-generation ReliaTel™
microprocessor controls.
ReliaTel™ Micro:
• Provides unit control for heating,
cooling, and ventilating by utilizing input
from sensors that measure outdoor
and indoor temperature.
• Improves quality and reliability through
the use of time-tested microprocessor
controls and logic.
• Prevents the unit from short cycling,
considerably improving compressor
life.
• Ensures that the compressor will run for
a specific amount of time, which allows
oil to return for better lubrication,
enhancing the reliability of the
compressor.
• Reduces the number of components
required to operate the unit, thereby
reducing possibilities for component
failure.
• Eliminates the need for field-installed
components with its built-in anti-short-
cycle timer, time delay relay and
minimum ‘’on’’ time controls. These
controls are factory tested to assure
proper operation.
• Requires no special tools to run the
Precedent unit through its paces during
testing. Simply place a jumper between
Test 1 and Test 2 terminals on the Low
Voltage Terminal Board and the unit will
walk through its operational steps. The
unit automatically returns control to the
zone sensor after stepping through the
test mode a single time, even if the
jumper is left on the unit.
• As long as the unit has power and the
LED is lit, the Micro is operational. The
light indicates that the Micro is
functioning properly.
• Features expanded diagnostic
capabilities when used with Trane’s
Integrated Comfort
TM
Systems.
• As an energy benefit, softens electrical
‘’spikes’’ by staging on fans,
compressors and heaters.
• The Intelligent Fallback or Adaptive
Control is a benefit to the building
occupant. If a component goes astray,
the unit will continue to operate at
predetermined temperature set points.
• Intelligent Anticipation is a standard
feature of the Micro. Functioning
constantly, the Micro and zone sensors
work together in harmony, to provide
tight comfort control.
Electromechanical Controls
• For the simpler job that does not
require a building automation system,
or expanded diagnostics capabilities,
Precedent offers electromechnical
controls. This 24-volt control includes
the control transformer, contactor
pressure lugs for power wiring.