Comfort Control; Statitrac Direct Space Building Pressurization Control; Fans With Inlet Guide Vanes; Variable Frequency Drives (Vfd) - Trane IntelliPak User Manual

Electronic Industries Alliance (EIA)
Control Network Protocol Specification
and ANSI/ASHRAE 135, part of the
American Society of Heating,
Refrigeration, and Air-Conditioning
Engineer's BACnet control standard for
buildings.
Interoperability allows application or
project engineers to specify the best
products of a given type, rather than one
individual supplier's entire system. It
reduces product training and installation
costs by standardizing communications
across products. Interoperable systems
allow building managers to monitor and
control IntelliPak equipment with a Trane
rd
Tracer Summit or a 3 party building
automation system. It enables
integration with many different building
controls such as access/intrusion
monitoring, lighting, fire and smoke
devices, energy management, and a
wide variety of sensors (temperature,
pressure, light, humidity, occupancy,
CO2 and air velocity). For more
information on LonMark, visit
www.lonmark.org or Echelon,
www.echelon.com.
Optimum
Building

Comfort Control

The modular control design of the UCM
allows for greater application flexibility.
Customers can order exactly the options
required for the job, rather than one
large control package. Unit features are
distributed among multiple field
replaceable printed circuit boards. The
Trane UCM can be set up to operate
under one of three control applications:
1 stand-alone
2 interface with Trane's Tracer™ building
management system
3 interface with a generic (non-Trane)
building management system. All
setup parameters are preset from the
factory, requiring less start-up time
during installation.
RT-PRC010-EN
Features and
Benefits
The unit mounted Human Interface and
the Remote Human Interface Panels'
functions are identical, except for the
Service mode is not available on the
Remote Human Interface Panel. This
common interface feature requires less
time for building maintenance personnel
to learn to interact with the unit. All of the
rooftop's control parameters are
adjustable and can be set up through the
Remote Human Interface Panel such as,
but not limited to: system on/off,
demand limiting type, night setback
setpoints, and many other setpoints. No
potentiometers are required for setpoint
adjustment, all adjustments are done
through the Remote Human Interface
keypad. Also up to 56 different rooftop
diagnostic points can be monitored
through the human interfaces such as:
sensor failures, loss of supply airflow,
and compressor trip. No special tools are
required for servicing of the unit. All
diagnostic displays are available in clear
English at the Remote Human Interface
and will be held in memory, so that the
operator/servicer can diagnose the root
cause of failures.
Statitrac™ Direct Space
Building Pressurization Control
Trane's Statitrac™ control is a highly
accurate and efficient method of
maintaining building pressure control
with a large rooftop air conditioner.
The efficiency is achieved with a 100
percent modulating exhaust system with
two forward-curved fans with
modulating discharge dampers that
operate only when needed, compared to
some systems that operate continually.
And most of the operating hours of the
100 percent modulating exhaust system
are at part load, saving more energy.
Trane's Statitrac, with the 100 percent
modulating exhaust system, provides
comfort and economy for buildings with
large rooftop air conditioning systems.
Statitrac control is simple! The space
pressure control turns the exhaust fans
on and off as required and modulates
exhaust dampers to maintain space
pressure within the space pressure dead
band. Using the unit mounted Human
Interface Panel you can
1) adjust space pressure setpoint
2) adjust space pressure dead band
3) measure and read building space
pressure. The modulating exhaust
system maintains the desired building
pressure, saving energy while keeping
the building at the right pressure. Proper
building pressurization eliminates
annoying door whistling, doors standing
open, and odors from other zones.
The Statitrac™ direct space building
control sequence will be maintained
when a variable frequency drive is used.

Fans With Inlet Guide Vanes

Trane's forward curved fans (20 through
75 tons) and air foil fans (90 through 130
tons) with inlet guide vanes pre-rotate
the air in the direction of the fan wheel,
decreasing static pressure and
horsepower, essentially unloading the
fan wheel. The unloading characteristics
result in superior part load performance.
Variable Frequency Drives
(VFD)
Variable Frequency Drives are factory
installed and tested to provide supply/
exhaust fan motor speed modulation.
VFD's, as compared to inlet guide vanes
or discharge dampers, are quieter, more
efficient, and are eligible for utility
rebates. The VFD's are available with or
without a bypass option. Bypass control
will simply provide full nominal airflow
in the event of drive failure.
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