Release 6.3
Release 6.2
[Version 6.3.2] 9/16/2015
New Features
- ASHRAE 170 calculations are now supported
- Rooms can now
be negatively pressurized
- TRACE can not positively
pressurize a space; this will still need to be done manually
- If the ARAE feature is used, the designer will need to balance
the airflows at the system level
- Dramatic improvements have
been made to evaporative cooling modeling (see updated user's
manual)
Updates
- Added units of cfm/sf and lps/sm to the infiltration UI
- Scan for errors now includes some situations that require
'Retest Design Peak' to be checked
- For all UFAD and DV
systems, the user should never specify the clg coil leaving. User
inputs to lock-in these temps will be ignored
- Updated the
checksums report to account for two stage energy recovery
- Changed the VRF condenser min. operating temp field lower limit
from 0 to -35
- VRF default return airpath is now 'Room
direct'
- Updated F1 help and the user's manual
- Added
an indicator for Static pressure adjustments to show that they are
present
- 'Loss coefficient' for slab on grade is now called
'F-factor'
- Added window direction to the component tree
view
- Added 'People per 1000 sq. ft.' to the room checksums
(to help with LEED modeling)
- Added an install type
designator to the version number (network vs stand alone)
- Added new evaporative cooling library members
- Improved
the way DOA units use energy recovery devices
- Corrected an
issue with the proration of heating coil capacity overrides at the
room and zone level
- Improved the system level cooling coil
calculations when there is cooling demand in some rooms, but not
others
- Fan parameterization now works for VAV systems
- Active chilled beam aux airflow calcs were improved to better
account for natural convection
- Corrected a load accounting
issue between the reheat coil and the main heating coil during
dehumidification
- Improved the % sensible to occupied layer
calcualiton for displacement ventilation systems
- Corrected
a problem with the sizing of zone level heating coils in PFPVAV
systems (room and system levels were unaffected)
- Corrected
an issue with 62.1 airflow calcs when a VAV system was pushed to
100% OA
- Bypass VAV systems will now provide the correct
heating return airflow temp
- Corrected an issue that could
cause coil sizing units of "% ventilation and room latent"
to be ignored when vent airflow was set to 0.
- Corrected a
problem that could cause the PFPVAV system to ignore coil oversizing
at the zone level when the calculated heating airflow was too
low
- Adjacent room partition area is now correctly accounted
for when using room and floor multipliers
- Corrected a
problem when modeling displacement ventilation w/ chilled ceilings
where the space sensible loads were being incorrectly assigned
- Corrected a problem with bicubic unloading curves
- Design airflows are now limited to system block airflow when
appropriate (rather than sum-of-peaks)
- Corrected a static
pressure issue associated with ERD's with bypass dampers
- Heating only systems now correctly account for fan heat
- Corrected a control issue that could occur when nearly all the
space sensible load is assigned to the plenum
- Corrected an
issue that could cause return airflow values to be incorrect for
UFAD PFPVAV systems when running in bypass mode
- Corrected a
weather profile issue during dehumidification
- Improved the
duct leakage calculation for UFAD PFPVAV systems
- Changed
the way floor load is calculated for UFAD VAV systems
- Corrected an issue with UFAD VAV airflow calcs that could cause
the coil and diffuser airflows to be different
- Improved the
chiller load-based sequencing
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[Version 6.3] 9/6/2013
- Added Walls by Cardinal Directions report
- Updated the RTS calculation method (radiant fraction).
- Updated the adjacent building shading algorithm for the Southern
hemisphere.
- Updated the 62.1 report to show all zone Vot when
a zone-level coil is present.
- Updated metric load rates in
customized settings.
- Fixed RTS table lookup load
methodology when %glass = 100.
- Fixed Schedule Editors so no
overlap of time is allowed.
- Fixed an error in the ASHRAE
62.1 calculation that allowed the VAV min to fall below Vbz/Ez.
- Fixed the Library input value report for heating design.
- Fixed an error in the code for UFAD systems when adjacent floors
are used.
- Fixed an error in air-to-air energy transfer
devices that used bypass dampers. Static pressure of the ERD was
still being applied.
- Fixed a reporting error for the Bypass
Variable Reheat system; the heating mode CFM was incorrect.
- Fixed an error in the Displacement Ventilation system with Room
Induction; the time of capacity peak was incorrect.
- Fixed
an error when room exhaust was entered as 100%.
- Fixed an
error with Displacement Ventilation when an Aux cooling coil was
added.
- Fixed the Auxiliary losses to plenum; incorrect air
temperature to plenum.
- Fixed the weather override
"standard" default; it was not properly converting to
metric units.
- Fixed the cooling airflow for Rooftop
Multizone system.
- Fixed an error in the cooling coil peak
when both retest peaks was turned off and main coil capacity was
equal to "% design minus aux capacity".
- Fixed a
reporting error on the system component selection report, Primary
fan %OA.
- Fixed the chilled beam sizing when "% of
ventilation and room latent" was selected for the aux coil
capacity.
- Fixed an error that was causing incorrect results
when a heating only system was added to a system with supply air
temperature reset.
- Fixed the design cooling capacity
reports to show aux capacity.
- Fixed an error in the heating
coil oversizing for constant volume systems.
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[Version 6.2.10] 2/28/2013
- Updated the SZVAV control to be more accurate in the dead
band.
- Fixed the system component selection report to
accurately display the number of VAV boxes in a Single Zone VAV
system.
- Fixed an error where ERDs were not being accounted
for at design.
- Fixed an error when the ambient relief curve
was input using SI units.
- Fixed a control error in the DCV
control.
- Fixed the UFAD economizer control. The economizer
control point was not taking the underfloor heat pickup into account
and therefore not running the economizer enough.
- Fixed the
optional ventilation coil sizing when the Heating Coil was set to
zero.
- Fixed the heat rejection type for the VRV condensing
unit.
- Fixed the building areas report incorrectly showing
Glass % instead of Skylight %.
- Fixed the ERD leaving
temperature which was sending too high a temperature to the preheat
coil.
- Fixed the heating mode ventilation % when both system
block airflow and system ventilation override were selected.
- Fixed the diffuser outflow on the airflow balance report.
- Fixed the "Save As" feature that would crash when the
user hit "Cancel".
- Fixed the % load to return
air. It would not allow 100% load to return air.
- Fixed the
cooling tower wet bulb reset. The control would occasionally ignore
the wet bulb reset.
- Fixed the main heating coil capacity
override.
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[Version 6.2.9] 10/3/2012
- Added 90.1-2010 library members (see 90.1-2010 install for
further updates. This can be accessed through tranecds.com)
- Fixed an error in the secondary fan design heating airflow. This
occurred when a fan powered system type was specified, but some VAV
boxes were turned to "Shutoff VAV".
- Fixed the
export gbXML output on the file drop-down menu.
- Fixed a
reporting error on the system component selection report that was
missing the main heating coil for PFPVAVMBO.
- Fixed a
reporting error on the room checksum report. The main heating coil
was inadvertently adding the reheat coil capacity to the main
heating capacity.
- Fixed the ducted return air temperature
in a BPVAV system that was causing excess exhaust heat load.
- Fixed the ventilation load on the system checksum report to
reflect the use of ERDs.
- Fixed the 62.1 Ep value for VAV
systems. When a hybrid (shut-off + Fan powered) system was created,
the 62.1 report was not updating the shut-off VAV Ep values.
- Fixed the UFAD system design cooling coil leaving
temperature.
- Fixed the system component selection report to
properly report the amount of secondary fans and shut off VAV boxes
in a hybrid system.
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[Version 6.2.8] 3/30/2012
- Added a new Single Zone VAV (SZVAV) System.
- Added the
ability to simulate a dual VAV cooling/heating minimum feature for
all systems that use reheat minimum to control the cold deck airflow
at minimum load.
- Added five Mexican weather libraries with
the origin filetype appended to the name.
- Fixed an error
that did not let the user change the U-factor of a copied door.
- Fixed an error that did not account for skylight load in
duplicate rooms per zone.
- Fixed an error that did not
account for the main heating coil when an auxiliary coil was added
and the coil capacity was modified.
- Fixed an error that
prevented the psychrometric report airflow to match with the
checksum report airflow when Standard 62.1 was applied in the
system.
- Fixed an error that did not account for the shutoff
mode in fan powered VAV system.
- Fixed an error that did not
consider the room humidity ratio from psychrometrics when
calculating ventilation latent load in a few circumstances.
- Fixed an error that did not include the ventilation load when
sizing a radiation heating coil if a preheat coil did not exist and
ventilation deck was something other than Room Direct.
- Fixed an error for Mexican weather files due to unit conversion
error that presented very low humidity ratio values.
- Fixed
an error that duplicated the ventilation when ventilation units were
%Clg Airflow and the cooling supply airflow was entered in cfm
units.
- Fixed an error that under-reported heating loads when
VAV system preheat coils were manually undersized.
- Fixed
schedule graphs that were not graphing correctly.
Back to top
[Version 6.2.7] 7/12/2011
- Added the ability to import EPW weather files.
- Added
ventilation library members to increase the ventilation CFM by 30%
over the minimum ASHRAE 62.1 to gain the credit for LEED IEQ Credit
2.
- Fixed an error preventing the copying of glass with no
dimensions or percent in the file wizard.
- Fixed an error
that prevented the internal shading parameters from being shown on
alt 2.
- Fixed an error where adjacent floor plenums caused
the space load to peak in odd months when retest peaks flag was
set.
- Fixed an error that caused UFAD systems to generate huge
supply airflows when Std.62.1 flag was set and retest peaks flag was
set.
- Fixed an error where TRACE was using the design dry bulb
temperature instead of the ground temperature for the partition
delta T.
- Fixed an error that caused the VAV reheat minimums
to be too high when the system is oversized with respect to the sum
of the peak airflows.
- Fixed an error that resulted in the
number of people being multiplied by 100 when the 62.1 diversity
field was left blank.
- Fixed a reporting error that
displayed the wrong system type on the ASHRAE 62.1 report when a VAV
system with baseboard heat was selected.
- Fixed an error
that caused excessive heating on SFPVAV systems when using the
"Supply Air Reset Per Worst Case Room" with the "Use
system default outside air reset" checked.
- Corrected
the U-value for an external door.
Back to top
[Version 6.2.6] 9/1/2010
- Added Supply Air Reset Temperature offset to the Component and
Project Tree views.
- Added several space types per ASHRAE
62.1-2010 for ventilation calculations.
- Removed options to
view archived or T600-named library entries.
- Removed the
PFPVAV system in favor of the PFPVAVMBO system.
- Altered the
Walls by Direction report to include unusual orientations in a more
straight-forward manner.
- Changed the default U-value for
internal shading type Sample from 0.07 to 0.70.
- Fixed an
error that prevented combining files correctly when parenthesis are
being used in the names of the spaces.
- Fixed an error that
incorrectly displayed the ventilation quantities when using a
ducted, plenum or plenum/corridor vent deck.
- Fixed an error
that prevented certain types of shading from operating in the
southern hemisphere.
- Fixed an error that incorrectly
assigned ventilation load to main coils when using specific
dedicated OA systems in the design simulation.
- Fixed the
Room Entered Values reports to correctly shown when CO2 DCV sensors
are being used.
- Fixed the Systems Entered values reports to
correctly show the Space Convective Gains to Occupied Layer.
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[Version 6.2.5] 3/19/2010
This update contains the following items:
- Numerous calculation speed enhancements.
- Changed the
reporting of door areas in the Checksum reports to match that of
window area reporting.
- Added the ability to specify the
file location for an imported weather file in the Weather
Library.
- Added functionality that will create templates based
upon the Space Type Name when importing gbXML.
- Fixed an
error that would hide the heating ventilation quantity for some
systems on the Room Checksums report.
- Fixed an error that
would account for adjacent floor loads twice when using multiple
adjacent floors.
- Fixed an error that incorrectly displayed
the heating sensible coil load on the Peak Load reports.
- Fixed an error that created large amounts of over/undersizing
when using ASHRAE Standard 62.1 and Room Direct ventilation
decks.
- Fixed an error that incorrectly reported room
ventilation quantities when using SFPVAV and ASHRAE Standard
62.1.
- Fixed an error that incorrectly calculated the PFPVAV
system exhaust quantity during heating design.
- Fixed a
skylight load error that would incorrectly read legacy values and
not report the correct skylight loads.
- Fixed an error that
incorrectly ratioed reduced year weather when derived from full year
weather.
- Fixed an error that would ignore the Ez value in
ASHRAE 62.1 calculations when Vot was less than Vou.
- Fixed
an error that prevented custom doors from being exported and
imported via EXP files.
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[Version 6.2.4] 10/23/2009
This update contains the following items:
- Added "% of Design Capacity by adjusting airflow" as
an option on the Coils tab of Create Systems.
- Added "%
of Design Capacity by allowing subcool" as an option on the
Coils tab of Create Systems.
- Added the ability to export
basic Load Design data to HVAC Solutions software.
- Added
license activation to software installation.
- Changed
"% of Design Capacity Cooling Capacity" to only adjust the
latent coil capacity and not airflows.
- Changed the default
Main cooling coil capacity units to be "% of Design Capacity by
adjusting airflow" for new projects.
- Changed the
default Main cooling coil capacity units to be "% of Design
Capacity by adjusting airflow" for legacy projects.
- Changed the Report Viewer scrolling progress bar to display in
the background.
- Updated several system images with
additional labeling.
- Fixed an error that would not use
direct dehumidification weather correctly.
- Fixed an error
that would display the wrong airflow on the Checksum reports with
shut-off VAV boxes and SFPVAV systems.
- Fixed an error that
incorrectly calculated Voz when ASHRAE 62.1 was being used for
system level ventilation calculations.
- Fixed an error that
incorrectly calculated auxiliary heating coil conduction loads with
systems that contain underfloor plenums.
- Fixed an error
with heating driftpoint temperatures being flagged as potential
errors.
- Added Hot Keys for the Walls tab of Create
Rooms.
- Fixed the Walls By Direction report for walls that
have the same orientation and multiple openings.
- Fixed the
glass/openings export in the Library/Template Editors.
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[Version 6.2.3, T7up623.exe] 09/2/2009
This update contains the following items:
- Fixed an error that prevented full year weather files to be
imported into Windows Vista in certain circumstances.
- Fixed
an issue that would crash TRACE on the Walls tab of Create
Rooms.
- Fixed a crash that would occur when using the Heating
Building Envelope Loads at time of space peak.
- Adjusted the
deck locations for certain configurations of the Type III Isotherm
Wheel.
- Fixed an error that would prevent the Design Cooling
Capacities report from being displayed.
- Fixed an error
preventing the importing of .lds and older TRACE archive files.
[Version 6.2.2, T7up622.exe] 07/31/2009
This update contains the following items:
- Added the ability to directly import glass from LBNL Window
5.
- Enabled the template recovery function so each project
(.trc) file that is opened is scanned for template problems and
fixed.
- Fixed an error that incorrectly calculated time lag
based upon thermal mass between 180 and 185 lb/sf when using the
TETD method.
- Fixed an error that did not reduce the
economizer control point by the underfloor heat pickup with UFAD and
DV systems.
- Fixed an error that did not reduce the
economizer control point by the extra coil leaving drybulb during
indirect dehumidification.
- Fixed an error for DDVAV where
heating return airflow was incorrectly calculated when the block
airflow is entered.
- Fixed an error which allows for more
combined area when using openings than the total wall area.
- Increased the total limit of chilled beams in a single room from
500 to 5000.
- Fixed an error that would crash TRACE when a
new alternative is created and the rooms are using a previous
alternative.
- Fixed an error that incorrectly reports
ventilation quantity incorrectly with DV systems.
- Fixed an
error which incorrectly calculates the upper stratified layer
temperature with DV systems and ducted returns.
- Fixed an
error that incorrectly reported auxiliary fan heat on the Airflow
Heat Gain and Loss at Coil Peak report.
- Fixed an error that
would prevent TRACE Load (.lds) files from being imported into TRACE
or Load Design.
- Fixed an error that incorrectly calculates
the return air temperature for DV/UFAD systems when a plenum return
is used.
- Fixed an error that incorrectly applied direct
dehumidification with parallel supply air tempering for
ACHBEAM.
- Fixed an error that would undersize the main cooling
coil design airflow with ACHBEAM.
- Corrected three
infiltration Heating Design definitions (Infil - Low rise office,
Infil - High rise office, and Infil - Retail grocery store).
Back to top
[Version 6.2.1, T7up621.exe] 03/31/2009
This update contains the following items:
- Added displacement ventilation airside systems.
- Added
active and passive chilled beam airside systems.
- Added the
ability to model multiple/different openings per wall including
doors.
- Added the ability to create custom door types in the
Glass Library.
- Added additional common mistakes to check
for in Scan for Errors.
- Changed the underfloor plenum
location from system to zone-level.
- Changed the default
value for Space Sensible Gains to Occupied Layer from 50% to 60% for
Ducted Through Underfloor Plenum and Supply Via Sidewall
Displacement Ventilation options for Supply Duct/Air Path
Location.
- Fixed an error that incorrectly converted Height
Above Ground when switching from IP to SI units.
- Fixed an
error that would remove the humidification coil when a main heating
coil for the airside system (e.g. VAVBSK) did not exist.
- Fixed an error that prevented the Entered Values reports from
being viewed.
- Fixed an error that prevented glass types
from being imported into the Glass Library.
- Fixed an error
that would incorrectly calculate the coil capacity when using floor
multipliers and specifying the coil capacity.
- Fixed an
error that would incorrectly calculate the stratification
temperatures when adjacent ceiling plenums are used.
- Fixed
an error that would prevent the ASHRAE weather overrides from being
saved in an archive file with imported weather.
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[Version 6.2, T7up62.exe] 12/10/2008
Release 6.2 was distributed via CD to all active TRACE 700
customers December, 2008. This update contains the following items:
- Added constant and variable volume underfloor air distribution
systems.
- Added ASHRAE weather from 2005 Handbook of
Fundamentals.
- Added Scan for Errors feature which scans for
common input errors or missing library information.
- Added
ability to input supply air leakage up- and down-stream of coil
based upon system type.
- Added a glossary of common terms to
the help file.
- Added the ability to use reset and lockout
tables for lights and miscellaneous utilization schedules.
- Added an ASHRAE Standard 62.1-2004 output report to the Design
Reports.
- Changed the PFPVAV system to use PFPVAVMBO
calculations.
- Changed VAV minimums to 30% for: BPVAV, BPVRH,
DDVAV, PFPVAV, PFPVAVRA, SFPVAV, TAB, 2FDDVV, VAV, VAVFSK, VAVBSK,
VRH, VTRACRH, VTRACLC, and PFPVAVMBO.
- Updated system
graphics.
- Fixed an error that would omit the Summer Ground
Reflectance when changed by a user.
- Fixed an error that
would ignore internal shading for windows that were defined with
spectral glass.
- Fixed an error that would ignore a split
dehumidification system with a single zone airside system.
- Fixed an error that would ignore the use of energy recovery with
the radiation heating-only system.
- Fixed an error that
displayed the incorrect units for a humidification coil on various
Design reports.
