Trane, in offering the Trane Air Conditioning Economics (TRACE^TM700) computer program, accepts no responsibility or liability for the design of buildings or their support systems or for the accuracy of the economic analysis and the building and system air conditioning load data. The economic analysis and the building and system air conditioning load data are based on conventional economic and engineering principles, plus financial and engineering data supplied only by the program user. This TRACE 700 program is intended to be used as a comparative study of operating efficiencies and costs of alternative air conditioning systems. Trane further accepts no responsibility or liability for the suitability of the building air conditioning system in providing proper temperature control, humidity control, infiltration, air distribution and quiet operation.

Release 6.0
Release 6.0.0 was distributed via CD to all active TRACE 700 customers January, 2006.

New Features (General)
• System-level ventilation inputs.
• ASHRAE recommended RTS cooling methodology based on Heat Balance and ASHRAE Tables.
• Fluid coolers.
• Pumps added to free cooling devices.
• Room relative humidity output report.
• Dedicated outdoor air units can now dehumidify and reheat the air to room neutral conditions.
• Energy recovery devices have been added to model series and parallel supply air tempering (i.e., heat pipe).
• Additional options available for energy recovery devices (i.e., bypass dampers, additional static, fan energy, etc...).
• Dual path airhandlers (Split Dehumidification Unit).
• Direct control of room humidity by reheating supply air.
• Indirect humidity control such as Return and Mixed-Air Bypass.
• Two and three speed fan control for constant volume systems.
• Addition of Energy Cost Budget - appendix G report for use with ASHRAE and LEED models.
• New User's Manual available.
• Checkbox that will reset the vav minimums so they are large enough to handle the ventilation requirement.

Enhancements
• Heat recovery effectiveness value is now variable.
• Internal loads, glass, materials, construction types, and internal and external shading libraries have all been expanded.
• All reports have been updated.
• Getting started manual has been updated.

Bug Fixes
• Fixed fan cycling for shutoff VAV systems

[Version 6.1, T7up461.exe] 10/12/06
This update contains the following items:

• Added ASHRAE Standard 62.1-2004 ventilation calculations.
• Added CO2-Based Demand Controlled Ventilation.
• Added ability to model shutoff vav boxes to certain zones connected to a fan powered system (for example, interior zones).
• Added Nominal HP to the units list for fan energy.
• Added EER to the units list for equipment energy.
• Added ability to use Reset\Lockout tables to utilization schedules for Miscellaneous Equipment and Base Utilities.
• Added ability for series heat recovery devices to handle additional requirements from dedicated OA units.
• Program will no longer recalculate to determine the worst case room relative humidity unless the user has selected Direct Dehumidification. This will significantly reduce calculation time.
• Corrected cost/year values on Energy Cost Budget Report.
• Fixed problem with mechanical humidification not meeting the minimum RH value.
• Fixed the Cycle with Occupancy calculations for Bypass VAV systems.
• Fixed an error that occured if an exposed floor was entered and the methodology was RTS.
• Enhanced the Optimized Tower calculations.
• Added an SI conversion for Ambient Modification Curves.
• Corrected the cooling capacity value on the equipment energy report when metric units are used.
• Modified the hours of unmet load calculation.

[Version 6.0.2.1, T7up46021.exe] 03/20/06
This update contains the following items:

• Added feature to recalculate the Chiller Plant Analyzer load profiles based on specific weather location.
• Added functionality to chiller plant analyzer so the .OS1 file is no longer needed with the archive file unless the load profile has been modified.
• Added *Template to component tree view for humidity fields.
• Added dew point lockout control to utilization schedules.
• Added VFD cooling tower and 2-speed cooling tower to the library.
• Added feature to allow user to turn off partition import from gbxml.
• Removed the print confirmation dialog.
• Fixed economizer fields in the component tree view.
• Fixed conversion of version 4 files to version 6.
• Fixed daylighting calculations.
• Fixed energy recovery effectiveness values that came in as negative.
• Fixed fan heat calculations.
• Fixed problem where some files were crashing with RTS methodology.
• Fixed some graphing issues in the profile graphing utility.
• Fixed the Retest Peaks calculation.
• Fixed the energy recovery at design tonnage reduction when an energy recovery device was used on a dedicated OA unit.

[Version 6.0.01, T7up4601.exe] 01/10/06
This update contains the following items:

• Fixed energy recovery for VTCV in heating mode.
• Fixed plate and frame problems introduced from addition of fluid cooler.
• Thermal storage report diplays Average loop temp instead of ground temp for GSHP systems.
• Fixed an issue with the amount of reheat required by SFPVAV

Release 4.1
Release 4.1.0 was distributed via CD to all active TRACE 700 customers December, 2002.

New Features (General)
• Profile-Graphing utility: provides the ability to view a graphic or tabular representation of the building's load profile and/or hourly plant demands-consumptions.
• New File Wizard: Provides the ability to generate a block building
• Plant Wizard: Pre-built Chiller plant templates have been added to simplfy the process of creating complex chiller plant configurations.
• The ability to apply Weather Overrides to entire year, rather than just to the user defined “summer months”.
• Weather Overrides based on the peak DB and coincident WB in the weather file rather than the information on the General Information tab. Both sections were updated so that both values now match.
• Option to refresh construction types and glass types in the input section.
• Message listing all rooms that are missing library members during calculation.

Enhancements
• NEW Network operation mode: allows simultaneous multiple user access eliminating the need for ReadOnly/ReadWrite modes.
• Archive utility will only gather library members being used by active file.
• Added warning messages to Create Systems:Advanced screen, and Library Editor.
• Outside Air conditions in psychrometric analysis will now be considered at the Time of Space Peak like the rest of the loads.
• Extended capabilities of Lockouts in the Utilization schedules.
• Weather Design information has been updated to reflect the actual peak in the weather profiles.
• OAHIGH methodology has been removed.
• The AND operator was added to the Utilization lockout screen.
• Geothermal output files (GT1,2,3,4) now only include the groundsource loads instead of the full building load.

Bug Fixes
• Fixed problems with Room Exhaust causing airflows to be unbalanced. Program will now limit this input to be no greater than the room value for OA+INF.
• Fixed errors in the PlenumDB calculations, involving airflow and Plenum Heat Balance fixes.
• Fixed problem with % of Glass over Wall algorithm when value exceeded the available wall area.
• Fixed ASHRAE62 Reset calculating incorrectly.
• Fixed problems with entering coil conditions for EAHR units and scheduling for Makeup Air units.
• Fixed problem with Glass winter u-value using summer value instead.
• Fixed problems with Auxiliary Coils doubling up capacities.
• Fixed a problem with % of Glass Solar Load to RA not working properly at the system level for VAV systems. System Block Load was being reported incorrectly.
• Fixed Duct Heat Pickup being reported incorrectly.
• Fixed a problem with the Minimum operating condenser temperature not being used for GSHP correctly. TRACE will now account for the heating energy required to maintain the minimum ground source temperature.

Known Issues
• In chiller plant analyzer mode, the Reject to Condenser Heat field is not working properly. The field will default to Heat Rejection Equipment unless manually changed and recalculated by the user. This item will be fixed in Update 4.1.01
  Back to top
  

[Version 4.1.11, T7up4111.exe] 03/03/05
This update contains the following items:

• Corrected demand on Monthy Energy Consumption report when Cogen was applied.
• Increased accuracy of how the algorithm calculates the desired SADB when multiple rooms are attached to zone-level VTCV coils.
• Modified Entered Values reports.
• Modified length of combo boxes to fit longest name.
• Fixed problem when Defualt templates were renamed.
• All reports converted to use new Crystal 10.
• Modified System Exhaust value on System Component Selection report.
• Modified plant Sequencing so all defined sequences must be used.
• Added unloading curve to VRV condenser.

[Version 4.1.10, T7up4110.exe] 11/12/04
This update contains the following items:

• Added ability to model Hybrid GSHP applications.
• Modified Daylight Savings calculations.
• Modified curve points for Basic Curve library member.
• Modified Cogeneration part load energy calculations related to unloading curves.
• Corrected R/OA temperature calculation for Optional Vent units.
• Fixed Free Cooling pump energy calculations.
• Modified Bldg Clg/Htg Report to include all 24 hours on one page.
• Fixed sequencing when based on OADB.

[Version 4.1.9, T7up419.exe] 8/27/04
This update contains the following items:

• Modified plant sizing values when Cooling Plant Sizing Method is Block.
• Modified Cogeneration sellback so excess kW is subtracted from each hour of the building’s electrical load.
• Changeover Bypass system now calculates heating coil for block airflow instead of peak.
• Increased the amount of Coefficients used in calculating the construction type properties.
• Modified the Return/OA temp calculation for systems sized on Sum of Peaks.
• Modified Std 62 calculations for constant volume systems.

[Version 4.1.7, T7up417.exe] 6/17/04
This update contains the following items:

• Fixed cloud cover modifier when importing 8760 weather.
• Fixed economizer ignoring Max OA%.
• Fixed import of 8760 weather that contained unknown/blank data fields.
• Fixed problem with Heat Recovery chillers running when load was already handled.
• Added ability to choose which components to be imported with GBxml import.
• Fixed metric conversion of humidity ratio.
• Added msxml4 dlls required for GBxml import and export.
• Added further GBxml error checking.
• Modified the Block plant sizing calculation.
• Fixed equipment usage issue when unnassigned plants existed.

[Version 4.1.6, T7up416.exe] 4/16/04
This update contains the following items:

• Fixed base utilities in the profile graphs.
• Updated the cloud cover multiplier calculation.
• Numerous additions to gbxml import and export feature.
• Fixed heat rejection import in the library editor.
• Fixed ventilation methodology flag.
• Added metric capability to New File Wizard.
• All economic alternatives are required to recalculate if one changes.
• Added new Variable Regrigerant FLow equipment and fan schedules to Library.
• Fixed New File Based On handling of zones.
• Updated CEC-DOE Cooling Methodology.
• Fixed ASHRAE STD 62 ventilation calculation when an optional vent units was selected.
• Fixed problem with too many external shading types.

[Version 4.1.5, T7up415.exe] 03/05/04
This update contains the following items:

• New Chiller Plant Analyzer templates.
• New license agreement.
• Added Library Management tool allowing a user to hide old library members and the members with an EQ description.
• Added Flag to convert fan schedules to Available 100%.
• Added choice to Archive file from the start up screen.
• Fixed special 8760 excel report.
• New System Component Selection Report.
• Added Export GBXML option.
• The weather generate tool was incorrectly using a constant humidity ratio for the entire day. Fixed so it generates the wet bulbs given the user's value of constant relative humidity.
• Fixed OV coil selection info not showing up on the checksums for VAVBSK.
• Fixed bug associated with adding a skin htg sub-system (auxiliary heating coil) to a VRH system that undersized the skin htg coil.
• User defined Preheat Coil temperatures no longer allowed.
• ASHRAE 62. Per a coding change on 12/13/2002, TEMP was ignored when Z=1. Code changed back.
• New lighting and Miscellaneous load values applied to New File Wizard templates.
• Fixed a problem when adding a percentage flag to the equipment tag.
• Fixed problem for all system types when an enthapy wheel or runaround loop is combined with an economizer.
• Fixed problem where secondary pump energy was not showing up if multiple chillers were entered.
• Fixed problem where OV coil selection info is not showing up for VAVBSK in the checksums.
• Fixed problem where the wrong ventilation airflow was reported on the Design Airflow report.
• Changed the relief limit heat sink temperature difference for air cooled chillers from 30 to 40 F.
• New Equipment, unloading curves, and ambient relief curves were added to the library.

[Version 4.1.3, T7up413.exe] 10/30/03
This update contains the following items:

• Added feature allowing multiple files to be merged into one.
• Fixed the external shading type Adjacent Building.
• Fixed the main heating calculation for the Bypass VAV with Reheat system.
• Added new system type Changeover-Bypass VAV with Reheat.
• Added new system type Changeover-Bypass VAV with Local Heat.
• Fixed a problem with not all of the rooms being brought into a daylighting file.
• Added feature to ratio the coil airflow when a space Block airflow is specified.
• Changed the way the Building Peak value is calculated.
• Fixed chiller operation when thermal storage is scheduled off.
• Fixed problem where the Changeover Bypass Vav system was not eliminating the bypass airflow properly during fan cycling.
• Added feature for the database to scan only the alternatives that are required to calculate (decreases calculation time).
• Changed the fan sizing method for the Changeover-Bypass system from Peak to Block.
• File extension is now included when the File Save As command is used in the Load 700 and Load Express mode.
• Building orientation now stored during new file wizard process.
• Floor multiplier is allowed for Load 700 mode.
• Increased the size of the wall and roof construction fields.
• Increased the size of the templates field.
• New message box applied when calculation occurs with nothing selected to calculate.
• Added feature to copy the .day file if the File Save As command is used.
• Added restriction where at least one Monday must be input per month in the calendar.
• Modified calculation methodologies for the New File Wizard files.
• Fixed problem with the roof import from GBXML.
• Removed external shading from roofs.
• Added receptacle energy use to the Economic Summary report.
• Removed the variprime templates from the Plant Wizard.
• Added new Variable primary Flow tempaltes in the Plant Wizard.
• Assigned coils to some existing plant configurations in the Plant Wizard to allow calculation.
• Modified the heat recovery calculations.
• Fixed oversizing value with Terminal Reheat system.
• Fixed problem with liquid dessicant heat recovery.

[Version 4.1.2, T7up412.exe] 6/24/03
This update contains the following items:

• Fixed problem allowing VAV Min stop inputs to be equal to or less than Supply Airflow.
• Fixed Graphical representation of ambient modification curves
• Fixed problem where Oversizing was being double accounted for on a terminal reheat system.
• Fixed problem with fan cycling.
• Fixed Heating Design numbers for Double Duct Multizone system.
• Fixed the "Tab" order on New File Wizard, so a user can tab between all fields.
• Fixed total source energy value on the Energy Summary report.
• Fixed ASHRAE STD62 calculation when rooms with differing Setpoints were assigned to the same system type.
• Added new Plant configurations to the Plant Wizard and Chiller Plant Analyzer.
• Added ability to change program modes to Trace 700 Load Express, Trace 700 Load Design, and Chiller Plant Analyzer, from the menu.
• Added Roof to the internal room on the block building in New File Wizard.
• Added two decimal places for airflows on the room entered values report.
• Added Reheat design capacity values for VAVBSK and VAVFSK.
• Adding a static pressure activates the Apply button.
• Increased the amount of walls per room allowed during Daylighting calculations.
• Allow a mixed utility rate when the kwh/kw flag is yes.
• Added current Air-Cooled Unitary equipment.
• Made changes to the Load Express import. A maximum of 4 alternatives are allowed to be imported.
• Removed the pump from the Electric Resistance Heat library member.
• When a file is renamed, it requires that all sections are recalculated.
• Program checks for empty zones and restricts calculation if one is found.
• Archive utility includes schedules used in a template even if they are not used in the file.
• System Profiles can now be modified in Excel 2000.

[Version 4.1.1, T7up411.exe] 4/1/03
This update contained the following items:

• Fixed problem when a file using 8760 weather was run twice without change.
• Fixed fan units within the graphing utility.
• Fixed problem with Absorption units rejecting condenser heat in Chiller Plant Analyzer.
• Fixed units issue with global airlfow templates.
• Fixed issue with a Stepped Function unloading curve.
• Fixed heat recovery or condenser pump full load units problem.
• Fixed a reporting issue in the Rooms entered value report.
• Fixed the % glass solar to retun air calculation when using VAV systems.
• Fixed cogeneration control type "Generate to Full Capacity."
• Fixed auxiliary heating airflow for VAV forced flow skin heating.
• Fixed problem with optional ventilation supply air temperatures.
• Fixed the reheat temperature difference calculation when a leaving cooling coil temperature is specified.
• Added a "special character" check within the file.
• Added check to to verify glass area is less than wall area.
• Added prompt if .taf file already exists.
• Added feature allowing GBXML import to an exisitng file.
• Added feature allowing the optional ventilation heating supply temperature to be higher then the cooling supply air temperature when ventilation deck is room direct.
• Added an Equipment Summary Report containing Project Information, Alternative Comparisons, Monthly Utility Cost graphs, and Equipment Energy Consumption.
• Added a New File Based On feature allowing a user to create a new file by using an alternative from a different file as the base case.
• Added a an option to replace or leave custom library members when an archived file is opened and contains a library member with the same name as one stored in the lib7.db.
• Added an AND flag to the reset and lockout schedules.
• Added a Print Option for checksums reports allowing a user to preview only the rooms, zones, or systems of interest.
• Added feature to apply weather overrides to the entire year.
• Added Daylighting functionality.
• Added Reccessed Windows as an external shading type.
• Added Customer Charge field to the Utility Rate Structures.
• Modified the Ground Source and Water Source Heat Pump algorithms.
• Modified the way geothermal export files were created. They are now plant specific.
• Modified the psychrometric state points reports.
• Modified the ASHRAE standard 62 algorithm.
• Modified ambient modification curve for CVHF w\ Var. Freq.
• Modified thermal storage capacity and minimum operating temperature for GSHP library members.
• The Archiving a project feature was changed to include only the custom library members within the file
• A new Library Members report was created that lists out all of the library members used in the Trace project. It contains all of the custom and standard library members as well as the information contained within them.
• Room heating setpoint can be specified higher than the room cooling setpoint for design purposes only.

Release 4.0
TRACE^®700 version 4.0 distributed on a CD to all active customers April 2001.

[Version 4.00.06B, T7up4006B.exe] 4/30/02
This update contained the following item:

• Fixed a problem with the calculation engine introduced in the 4.00.06 update. The problem was caused by modifications required to fix the plenum height\plenum load algorithm. The problem would only occur if a space was defined without a plenum.

[Version 4.00.06, T7up4006.exe] 3/25/02
This update contained the following items:

• Updated the Heating Design Output displayed in the checksum reports. Including the addition of 4 description fields that will match the Peak Total to the Selection Total.
• The "re-calculation" process has been modified, reducing the calculation time required to recalculate a file.
• Added a new flag that will cause the negative ventilation latent loads in Design to be reset to 0 by typing *VLAT* anywhere in the system description.
• Fixed a problem with the design heating conduction value for glass.
• Fixed specific problems with the calculated heating capacity of following systems: TRH, VAV w/baseboard Skin Heating, Changeover Bypass VAV, VRV, 2FDDVV,VRH.
• For all system types, the fan heat is no longer allowed to be a credit for any of the heating coils.
• The Optional Ventilation schedules are no longer ignored during the Design Simulation.
• Addition of a "FIXLIB" utility to assist with resynchronizing the library database following a client corruption.
• Revised the AIR-COOLED Chiller algorithm to allow for a more realistic amount of ambient relief . This will allow for increased accuracy of the actual energy consumption.
• Added code to stop the calc. when library members are missing.
• Fixed "Off (0%)" Thermal Storage Schedule.
• Fixed an issue preventing the program from using the entered design room cooling supply airflow (in VAV fan system). The program was using the calculated airflow value instead.
• Fixed an issue with the HEATING ONLY systems causing the program to crash during calculation.
• Fixed an issue that caused some 8760 simulations to use the reduced weather instead of the actual 8760 weather file.
• Fixed an issue with the room temperature drift calculation. The problem would occur with a VTCV system when untreated ROA deck air is brought into the room during hours when the space would normally require cooling.
• Fixed a problem with base utilities occurring when hourly loads were defined using volume or flowrate units. The program was ignoring the entering and leaving temperatures when the base utilty was not assigned to a plant.
• Fixed a problem with HOT thermal storage. It was not using the thermal storage schedule correctly.
• Fixed an AirChangesPerHour problem introduced by a previous fix to the ACH for infiltration. The ACH minimum value was being ignored.
• Enhancement to the "Computer Room Unit" humidity algorithm.
• Corrected a problem occuring when multiple plant-level heating circulation pumps were defined. The pumps were using the wrong full load rate.
• Fixed an issue with Base utilities using an energy type of water. The energy content was incorrectly calculated instead of the amt of water consumed.
• Corrected a problem with Schedule Reset Lockouts not working consistently.
• Corrected a report generation problem occurring with the bldg cool heat demand report.
• Fixed an issue preventing multiple thermal storage cooling plants from operating simultaneously.
• Fixed a thermal storage problem in which the tanks were incorrectly discharging when the bld load exceeded the capacity of cooling equipment. The tanks and the ice making chiller were attempting to satisfy the load even though they were scheduled to be "Charging" the ice tanks.
• Fixed a problem with Cogeneration output reporting.
• Fixed problems with the ASHRAE62 methodology and added the functionality to correct the VAV Minimum Stops that are below the ventilation requirement.
  

[Version 4.00.05, T7up4005.exe] 12/17/02
This update contained the following items:

• Enhanced calculation of SADB when CFM is entered.
• Addition of File Archive utility.
• Beta version of GBXML CAD file import utility.
• Shortcut to www.TRANECDS.com download center added to the HELP menu.
• Ability to select/print individual schedules from library.
• Enhanced network library synchronization functionality.
• Increased size of Internal and External shading type fields.
• Base Utility Descriptions added to Energy Consumption report.
• Addition of Variable Refrigerant Volume system type.
• Addition of Variable Refrigerant Volume equipment.
• Fixed problem with thermal storage "Satisfy Load" option.
• Fixed problem with plenum temperature calculation occurring when Misc Sensible was assigned to "same as return air".
• Fixed problem with ASHRAE 62-89 outside air fraction reporting.
• Fixed problem with Template import.
• Fixed printing issues (Thermostat template) in Library editor.
• Fixed problem with infiltration units of air changes per hour.
• Fixed problem with Process Chilled water units on Equipment energy consumption report.
• Fixed problem with Misc Acc. when used with Cogen equipment.
• Fixed problem with Domestic Hot water reporting.
• Fixed problem with GLHEPRO output values.
• Fixed problem with Library Merge analysis weather process.
• Fixed problem with latent portion of ventilation component going negative in locations with low Summer Design wet bulb.
• Fixed problem with room level infiltration loads at time of space peak using Outdoor Air loads at time of coil peak.
• Fixed problem with DDVAV system: the design htg airflow was ignoring the user defined minimum airflow setting.
• Fixed reporting problem: Glass solar RA sensible value was switched with Glass conduction RA sensible value. This had no effect on coil capacities or airflows.
• Fixed problem recognizing file changes,introduced in version 4.00.04.
  

[Version 4.00.04, Internal Trane release only] 10/15/01
This was an Trane internal update only.

[Version 4.00.03, T7up4003.exe] 8/27/01
This update contained corrections/updates to the following items:

• Marked weather files from previous release as "standard"
• Fixed problem with Fan equipment EQ4201
• Added Reduced Year/Full Year warning-explanation messages
• Fixed problem with GLHEPRO GT1 export file format
• Fixed problem with Library Merge analysis weather process
  

[Version 4.00.02, T7up4002.exe] 8/20/01
This update contained corrections/updates to the following items:

• Increased the size of Pull-down menus
• Addition of System Summation utility (similar to T600sum)
• Addition of Load 700 version 3 schedule upgrade/conversion
• Addition of optional Load700 operating mode
• Addition of units to Rate Structure library
• Addition of file list to Help-About Screen
• Addition of ground loop temperature calculation (Based on Figure 3.13 of the IGHSPA manual)
• Addition of project file recovery utility
• Addition of template recover utility
• Addition of warning message when deleting alternatives
• Addition of messages explaining full vs reduced year
• Addition of many new international weather files
• Fixed problems with some weather files
• Fixed the format of the GLHEPRO export file
• Fixed problem with Load shedding
• Fixed problem with heating only system on eng. checks report
• Fixed problem with Ventilation airflow units
• Fixed problem with min Supply airflow (to be >= min vent.)
• Fixed problem with heat pump equipment operation schedules
• Fixed problem with system heading on Energy cons.output report
• Fixed problems with metric output reporting
• Fixed problems with metric conversion factors
• Fixed problems with metric economic calculations
• Fixed problem with AC/H calc on load/airflow summary
• Fixed problem with min. supply airflow calculation
• Fixed problem preventing operation outside United States.
• Fixed problem with adding global templates
• Fixed problem with copying templates with multiple alternatives
• Fixed problem with Materials library import (Library editor)
  

[Version 4.00.01, T7up4001.exe] 5/16/2001
This update contained corrections/updates to the following items:

• Addition of "Copy Equipment"
• Addition of "Print Setup" to results viewer.
• Addition of Alt number to Entered values reports.
• Room Template assignment *template feature
• Load to TRACE conversion corrections.
• Template issues with a converted Load file.
• Cooling tower algorithm (based on DOE2.1A) was updated to match DOE 2.1E.
• Sizing of chillers when using process cooling loads.
• The Variable Volume Pump energy consumption calculation.
• Corrected minor problem with system level supply airflow calculation.
• System Exhaust airflow on the zone or system level with heat recovery.
• Simultaneously Base loading chillers and sequencing.
• Calendar usage during full year calculations.
• 8760 import.
• Problem with Calendar library.
• Allow Heat Recovery during Design calculation.
• Thermal Storage discharge optimization calculation with multiple chillers.
• Checksums number of People = 0 when attached to a "skin" system.
• Secondary heating pump was causing the simulation to fail.
• Economic calculation of only 1 alternative.
• Economic calculations.
• Room Assignment Tree report.
• Library Editor Schedules report.
• Air to Air HP w/ Demand Defrost equipment model.
• EQ1281-Secondary Unloading curve.
• Removed System.prn dependencies from calculations.