TRACE™ 700 Load Design

TRACE 700 Load Design provides all of the options and modeling capabilities you expect in a comprehensive load analysis tool, combined with a whole new level of usability that makes load design easy.

We have integrated Load 700 with TRACE 700 to give you the same look and feel and extended capabilities as TRACE 700. All the added features (applicable to load design) in TRACE 700 will now be available to Load 700 users. Also, we’ve aligned calculation engines, file extensions and libraries to enable users of both programs to transfer archived files back and forth without any additional steps needed.

Release 6.3

Release 6.2

[Version 6.3] 9/6/13

  • 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.


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[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.


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[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).


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[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.

 

To install and run the program you will need: a Pentium® 4 or higher processor, Microsoft Windows® 7/8 operating system, at least 1 gigabyte (GB) of RAM,  and 500 MB of free hard-disk space (750 if Microsoft .NET Framework version 2.0 is not already installed).