Release notes
Release 6.3
Release 6.2
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[Version 6.3.3] 5/13/2016
This update includes the following items:
- Library expanded to include ASHRAE 90.1-2013 equipment and
constructions
- Trane Series S CenTraVac chiller is now
available as a cooling equipment library
- Variable
Refrigerant Flow (VRF) curves fixed
- Updated VRF
libraries
- Updated 90.1-2004 libraries
- Updated
90.1-2007 libraries
- Updated 90.1-2010 libraries
- Updated F1 help content
- Now when the psychrometric loop
doesn't close, the SADB is reset to 55 unless the user has fixed the
supply airflow
- The ERD can now reduce the size of both the
preheat and main heating coils during design calculations
- Auxiliary heating coils can now reheat a room that is in heating
when the system is in cooling to limit unmet heating hours
- Evaporative precooling fields are now available for Load Only
mode when evaporative cooling is allowed at design in the Change
Load Parameters screen
- Heating only systems can now have a
heating and cooling DOA
- During free cooling, the pumps can
now continue to run even when the chiller is not running
- Oversizing due to the VAV minimum being greater than the
calculated system block airflow is no longer ignored
- The
cooling cfm is no longer oversized to match the ventilation cfm when
the ventilation is set to room direct
- Updated the scan for
errors so it no longer states that 62.1 is required on the PRM
baseline, only the ECB baseline
- The no. people/1000 sq ft
on the room checksums report can now accommodate 4 digits instead of
3
- The global construction template now allows floor to floor
heights greater than 20 ft
- Added a warning message to alert
the user when updating the baseline rooms, all the rooms will be
unassigned from the systems
- The RTS (heat balance)
calculation method is now limited to 200 surfaces instead of
110.
- The Optimum Stop controls only look at the last occupied
hours now when the schedule is set to Available (100%)
- SZVAV system now increases SADB at max airflow when load
increases to prevent unmet heating hours
- Supply airflow can
now be calculated based on heating load for heating dominant systems
to prevent undersizing in heating
- The optimal unloading
part load ratio is now available in the library for air cooled
chillers, not just water cooled chillers
- Corrected an issue
where the ECB and LEED Summary reports showed conflicting electric
cost when there are negative base utilities
- Corrected an
issue with over calculating the lighting load when the return air
path is set to ducted
- The bicubic curve no longer
incorrectly uses the condenser entering temperature instead of the
condenser leaving temperature for the EIR-FPLR curve
- The
PFPMBO system now uses the zone level heating SA cfm value for both
the diffuser and VAV box on the system component selection
report
- Resolved a conflict in ASHRAE 62.1 and 170
calculations that caused blank values on the checksums reports
- Fixed an issue where the program calculated zero ventilation
when 62.1 and 170 ventilation rates were input
- Fixed a
problem with missing VRF fan heat in the reports
- Corrected
an issue with the LEED Summary report showing the wrong %
savings
- The adjacent room transfer airflow now includes the
latent component on the checksum reports
- Resolved a problem
where heating plant sequencing caused the calculation to crash
during the equipment simulation
- Resolved a runtime error
when opening the Graph Profiles and Energy
- Excess pages
generated in the Systems Entered Values report have been
eliminated
- Resolved a crystal reports error when opening the
Plants Entered Values Report when the project includes a refrigerant
economizer
- Corrected an issue where the 90.1 NMC fan ignored
its reset and lock out table when the project includes adjacent air
transfer
- Fixed a problem with the Graph Economics tool which
was missing data and repeating months
- Fixed a problem with
the Component Tree view which was missing schedule dropdowns
- Resolved an issue in the rate structure library with metric
units where the electric demand and consumption values increased
when saved
- Resolved an invalid argument error when clicking
the options button for the stage 1 energy recovery device
- Corrected an issue where SZVAV system level coil airflow did not
match the fan airflow when the supply airflow is entered at the room
level
- Corrected an issue where a plant level cooling tower
consumed too much energy when the tower curve was not a polynomial
and capacity was not entered as a %
- The ambient
modification curve is no longer ignored by heat recovery
(non-geothermal) chillers
- Corrected an issue where the
optimal part load ratio was not calculated when the field was left
blank in the cooling equipment library
- Corrected an issue
where the user entered off cooling coil temperature was ignored when
the psychrometric loop didn't close
- Fixed a problem where
the block cooling airflow was entered for a VAV system and then the
system type was changed to CV and still referenced that entered
block cooling airflow
- The calculation no longer crashes
while copying room assignments when the baseline alternative is
updated
- Resolved a variable conflict in the new data center
evaporative cooling that caused cooling equipment to ignore the
liquid desiccant conditioner load
- Resolved an issue with
evap cooling that caused the liquid desiccant conditioner to ignore
the desired leaving humidity ratio input
- Replaced the
missing condenser fan library in the "Trane Voyager VAV
Rooftop" cooling equipment
- The cold deck SA is no
longer incorrectly set to the supply air humidity ratio instead of
the cooling coil leaving humidity ratio for dual duct systems
- The base utility demand is now correctly converted for the plant
oversizing calculation
- Corrected an issue where the pump
energy is calculated as a negative value when the library uses units
of watts/gpm
- Corrected a problem that caused zero OA for
passive beams and DV chilled ceilings
- The ERD can no longer
overheat the air causing unnecessary cooling loads in winter
- Corrected an issue where the waterside economizer couldn't
operate enough because chilled water reset curve was ignored
reducing the operating hours for the waterside economizer
- Unmet heating hours didn't match on the ECB and LEED Summary
reports when there were unconditioned systems
- Corrected an
issue that caused the PRM fan rule disallowing the effect of ERD
static pressure on fan energy to be applied even when the PRM fan
calcs were not applied
- Fixed an issue where the GBXML
export doesn't match the room checksums for airflow
- Resolved a Fortran error when importing .tm3 or .epw weather
files
- Resolved a LEED Summary report crash when the base
utilities don't match on the proposed and baseline
- The ERD
dew point set point is no longer ignored and the series coil loop
placed on the ROA deck can now control room relative humidity
- Fixed an issue where the people diversity is no longer ignored
for single zone 62.1 calculations
- Corrected an issue where
high internal loads scheduled during heating design did not zero out
the heating coil size when no heating was necessary at design
- Corrected an issue where the ventilation fan was missing on the
PRM fan power detail report
- Corrected an issue where
daylighting calculations ignored the effect of external shading
- Fixed a problem where the enthalpy ERD did not modulate even
when the part load method was set to modulated
- Fixed a
problem where the enthalpy ERD did not include the return fan heat
when a return fan static pressure was entered
- Corrected an
issue that caused the UFAD return air temperature to be calculated
incorrectly
- Fixed a problem where the system block airflow
was ignored for UFAD SFPVAV systems
- The chilled water pump
energy is no longer double accounted for a VAV pump when the chiller
is not operating but the ice storage is operating
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[Version 6.3.2] 9/13/2015
- ASHRAE 170 calculations are now supported
- Dramatic
improvements have been made to evaporative cooling modeling
- Special energy accounting has been added for data center
equipment
- Chillers can now be sequenced using the optimal
sequencing method
Updates:
- Updated the equipment cycle point controls for curves that are
entered as a table.
- Updated the economizer controls to
account for ERD effects
- The equipment energy consumption
report will now inculde required fans that have type equal to
"None"
- Updated the ERD and economizer controls so
that they now operate in a more cooperative manner
- LEED
summary report updated so that having base utility descriptions in a
different order between alts will no longer cause a crash
- It is now possible to run simulations without a cooling plant.
Typically used with heating & ventilaiton only systems
- Added units of cfm/sf and lps/sm to the infiltration UI
- The 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
- It is no longer necessary to rotate the baseline to get access
to the LEED reports
- Adjacent building shading is now copied
to baseline buildings when modeling for 90.1-2010
- It is now
possible to lock the header in place in the visualizer
- The
VRF condenser min. operating temp field lower limit has been changed
from 0 to -35
- VRF default return airpath is now 'Room
direct'
- F1 help and the users manual updated
- Static
pressure adjustments now have an indicator to show that they are
present
-
Loss coefficient for slab on grade is now called
F-factor
- The plant wizard is now available in chiller
plant analyzer alternatives 2 thru 4-Added
window direction to the component tree view
-
People per 1000 sq. ft. has been added to the room checksums
(to help with LEED modeling)
- An install type designator has
been added to the version number (network vs stand alone)
- New evaporative cooling library memebers have been added
- 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 dehumidificaiton
- When "ECB\PRM fan
rules" is not selected, the same ERD SP is now applied to both
alternatives
- ERD static pressure effects are now ignored in
the PRM alternative
- 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)
- Refrigerant migration can now be used in conjunciton with an
optimized tower
- Optimum start now functions correctly for
SZVAV systems
- Updated the visualizer to correct an airflow
reporting problem
- 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 calcualted 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 ventilaiton w/ chilled ceilings where the space
sensible loads were being incorrectly assigned
- Corrected a
problem with bicubic unloading curves
- Excess condenser heat
is now rejected when using heat recovery chillers
- 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 vaues to be incorrect for UFAD PFPVAV
systems when running in bypass mode
- Corrected a weather
profile issue during dehumidificaiton
- Improved the duct
leakage calculation for UFAD PFPVAV systems
- Changed the way
floor load is calcualted for UFAD VAV systems
- Corrected an
issue with UFAD VAV airflow calcs that could cause the coil and
diffuser airflows to be different
- Corrected a problem with
the PRM Fan Power report that could occur when the room exhaust fan
showed up first in the room description \ Fan name list
- Improved the chiller load-based sequencing
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[Version 6.3.1.1] 9/19/2014
This
update contains the following items:
- Added LEED Automation for IEQ P1.
- Added LEED Automation
for EA P2.
- Added ASHRAE 90.1-2010 baseline building
creator.
- Added ASHRAE 90.1-2010 Appendix A assembly and
construction library members.
- Added ASHRAE 90.1-2010
baseline systems 9 and 10, heating only systems.
- Added LEED
Guide V4 on screen help.
- Added Single Zone ventilation
calculation for zone level coils.
- Added new fan: Direct
Drive AF Var Freq Drv.
- Added Direct Dehumidification during
heating mode/Unoccuiped Hours now in Change Energy Parameters
(removed from T700simsettings).
- Added LEED Energy Type in
Base Utility library: Mapped to LEED Report Base Utilties = Process
or Non-process.
- Added ASHRAE/LEED reports tab (organizes
ASHRAE and LEED reports along with LEED Automation pdfs on one
screen).
- Added energy recovery now shown on the equipment
energy consumption report.
- Added Greensleeves
geothermal report to T700simsettings.
- Added IEQ
Credit 2 increased ventilation calculation. Auto setback to minimum
OA rates for baseline.
- Added non-mechanical cooling for
room exhaust.
- Added Liebert refrigerant economizer added to
the standard library.
- Added 90.1 riding the pump curve
library member.
- Added installation instructions to the
install wizard.
-
Updated
Start Menu; New File Wizard on startup, re-grouped
New/Existing/Help.
- Updated flow for Baseline building
creator when updates to the proposed are triggered.
- Udated
baseline building creator now templates lighting power densities
even if they were untemplated in the proposed.
- Updated gas
consumption on LEED report to now default to therms and therms/hr
for IP units.
- Updated LEED report: summary for energy now
sums in MMBtu/hr.
- Updated LEED report: summary now includes
a sumation of process loads.
- Updated ASHRAE 62.1 report to
show zone level fans at the "system ventilation
parameters" output.
- Updated ventilation output in the
visualizer now includeds economizer airflow.
- Updated ASHRAE
90.1 Baseline Systems 6 and 8 (PFPVAV MBO)now auto size secondary
fan to 50% design airflow.
- Update -packaged breakout
"severe warning" when compressor power is less than 30% of
total.
- Update - 90.1 Static adjustment window added for more
accruate baseline static adjustment calculations.
- Moved air
to air energy recovery parasitic energy to the "fan energy
category" (moved from receptacle energy).
- Updated
gbXML code to properly import Revit 2015 files.
- Increased
cooling tower approach to 50F temperature difference.
- Added
"fan cycling" to entered values (systems).
- Added
when people averaging = Yes, Population diversity = 100% and is
grayed out
- Fixed the incorrectly grayed out
"Update ASHARE 90.1 Baseline" when a .TAF file was
opened for the first time.
- Fixed system component selection
report to correctly capture DOA units that were switched to zone or
room level.
- Fixed when baseline systems 3-8 using climate
Zone 3B were bringing in the incorrect economizer "on"
point.
- Fixed the baseline building creator not correctly
converting metric 62.1 rates when auto populating a metric 90.1
baseline.
- Fixed incorrect OA CFM on checksum for fan powered
systems. Reporting error only, the correct value is used in the
calculation.
- Fixed: When using a liquid desicant air to air
energy tranfer device the "user defined" leaving temp was
only working when the leaving temp of the desicant was greater than
the setpoint. Code has been fixed to reach the setpoint at all
hours.
- Fixed export for The Design Cooling Capacity
Report
- Fixed the entered value report "Library
Members" from incorrectly reporting cooling design as heating
design.
- Fixed when cooling VAV minimum was very small, or
zero, the calculation incorrectly allowed cooling supply air dry
bulb to be a vary large number when it should have been limited to
return/OA dry bulb.
- Fixed an issue with PFPMBO secondary
ariflow calc (and heating coil capacity) when calcuated as
(HeatingCFM-RHcfm)>RhCFM.
- Fixed issue %OA Htg for SFPVAV
changed to (VentilationHtg / Primary fan airflow)*100 which will
also equal (VentilationHtg / RhCfmHtg)*100.
- Fixed an issue
with Plate and Frame HX not showing enough savings (minor, less than
2 percent)
- Fixed issue in the bypass variable reheat system
when the cooling coil was only seeing the cooling to space supply
airflow instead of cooling to space supply plus bypass airflow.
- Added diversity to zone level coils because any system serving
multiple ventilation zones can take into account ventilation
diversity.
- Fixed an issue on the Design Airflow Report for
Room Exhaust.
- Return air bypass will now be disabled during
any hour when the economizer can meet all the cooling load
- Fixed a problem where Unit vent and unit heater systems would
underestimate the amount of heating savings from an ERD wheel
- Fixed an issue with the system analyzer to TRACE import feature.
The plants section was crashing the import process.
- Fixed
issue when a user enters a slab on grade floor, the construction
type which is grayed out, is being reported on the LEED summary
report
- Fixed issue with sizing a pump entered as Watt/GPM
when more than one boiler was present.
- Fixed issue when
system exhaust sizing was not taking into account adjacnet airflow
out of the system.
- Fixed issue with all economizers
(enthalpy, dry bulb, wetbulb) incorrectly bringing in outside air
during the winter, during unocuppied hours, for hours when heating
only is required.
- Updated the minimum condenser entering
for refrigerant migration from 38F to 32F. Took out the maximum
ambient temperature limit.
- Increased the max vertices per
window from a gbXML import. This was causing TRACE to crash when a
window had more than 8 vertices.
- For PFP mixing box outlet
the mixing temp between the plenum and supply air stream was
incorrect when the CLDBc was > Planeum DB
- Fixed issue on
temperature and humidity reports when a room was
"unconditioned". Report was showing "999" for
max values.
- Fixed the UFAD system from incorrectly using
sum of main plus reheat instead of larger of main or reheat.
- Fixed issue when Aux coil was added to a radiant system the main
heating coil was not taking the remainder of the load (as it
should).
- Fixed ssue with supply air reset without a max
reset, the preheat coil and cooling coil were running in the same
hour.
- Fixed mapping for eplus update that changed the geo hx
object, which in turn made GLD/GLHE pro exports for TRACE
inaccurate.
- Fixed the Walls by Direction report from
incorrectly using the floor/zone multiplier on all walls for a room
with one wall having a mutliplier.
- Fixed EEC report to
correctly reflect the heating mode demand for air to air heat pumps
(only effected the EEC report)
- Fixed issue with ambient
unloading curve for air-to-air heat pumps incorrectly setting to
Water Cooled
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[Version 6.3.0] 9/6/2013
This update contains the following items:
- Added LEED Guide, a step-by-step guide on modeling for LEED
V3.
- Added baseline building creator, a one-step process for
building a minimally compliant building, according to Appendix G
90.1-2007.
- Added ASHRAE 90.1-2007 Appendix G baseline
systems. (Systems 1-8)
- Added IPAK Standard and
High-Efficiency Air-Cooled Unitary library members.
- Added
IPAK Variable-Speed eFlex Air-Cooled Unitary library members.
- Added Trane VRF Heat Pump and Heat Recovery units.
- Added Walls by Cardinal Directions report.
- Added full
load rates for accessories on the Equipment Energy Consumption
report
- Updated LEED report - Lighting (w/Sq Ft) broken down
by space type; base utilites broken out in Section 1.6; updated
headings to align with LEED v3.
- Updated Metric load rates
in customized settings.
- Updated rate structure to allow
negative values.
- Updated the 62.1 report to show all zone
Vot when a zone level coil is present.
- Updated Fan Coil
systems to be calculated using ASHRAE 90.1-2007, Appendix G, system
1 when used in a baseline system with PRM Calc turned on.
- Updated the adjacent building shading algorithm for the Southern
hemisphere.
- Updated the RTS calculation method (radiant
fraction).
- Updated the TRACE 700 weather import to allow
expanded .epw weather files.
- Updated the optimum start
calculation.
- Fixed RTS table lookup load methodology when
%glass = 100.
- Fixed Schedule Editors so no overlap of time
is allowed.
- Fixed hot gas reheat calculation; the
proportion of ambient was not correct.
- Fixed an error in
the ASHRAE 62.1 calculation that allowed the VAV min to fall below
Vbz/Ez.
- Fixed the PRM fan report to allow Fan Coil systems to
be displayed.
- 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 GUI issue associated with the generate button for
ambient modification curves.
- 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
the Plant Wizard-Ice storage thermal storage multipliers.
- Fixed an error for free-cooling plate-and-frame heat exchanger
where both the condenser pump and free cooling pump were operating
at the same time.
- 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 that
incorrectly divided the energy rate for fluid coolers by the number
of cells entered on the heat rejection library.
- Fixed an
error in the heating coil oversizing for constant volume
systems.
Back to top
[Version 6.2.10] 2/28/2013
This update contains the following items:
- Added "Close ventilation dampers during unoccupied
hours" to the Project Input Values report
- Updated the
TRACE calculation to prompt a Fatal Error when 2+ ground loops are
present on the same alternative.
- Updated the SZVAV control
to be more accurate in the dead band.
- Fixed an issue where
lighting and miscellaneous loads were being counted as
"unconditioned" because the heating coil capacity was
zero.
- Fixed the system component selection report to
accurately display the number of VAV boxes in a Single Zone VAV
system.
- Fixed an error where ERD's 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
LEED report for thermal storage. The LEED report was not correctly
displaying thermal storage.
- 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 energy type on the LEED report for
purchased hot water.
- Fixed the ERD leaving temperature
which was sending too high a temperature to the preheat coil.
- Fixed the primary chilled water pump for VS WSHP.
- Fixed
the holiday day type in the visualizer; it was not being
displayed.
- Fixed the cogen curves when they were entered as
KW/MBH. Incorrect conversion.
- Fixed the fan energy
calculation when: ERD = room exhaust, rotate and average was
selected, and no PRM calculation was selected.
- Fixed the
heating mode ventilation % when both system block airflow and system
ventilation override were selected.
- Fixed the gbXML import
for slab on grade.
- Fixed the diffuser outflow on the
airflow balance report.
- Fixed the fan sizing calculation
when static pressure equaled zero.
- Fixed the LEED report
when zone and floor multipliers were used. The W/SqFt output was not
correct.
- Fixed the LEED report for KW Demand on WSHP
systems.
- Fixed the Air to Air Heat Pump curves.
- Fixed the "Save As" feature that would crash when the
user hit "Cancel".
- Fixed the ECB report to
include the cogen miscellaneous equipment.
- Fixed the % load
to return air. It would not allow 100% load to return air.
- Fixed the cooling tower wetbulb reset. The control would
occasionally ignore the wet bulb reset.
- Fixed the
ventilation reset that underestimated the amount of reset
possible.
- Fixed the parasitic energy consumption being
greater than zero when the economizer was running.
- Fixed
the 90.1 PRM Calculation; it now includes input for non-primary fan
static adjustments.
- Fixed the return air calculation when
upstream leakage fraction was selected.
- Fixed the main
heating coil capacity override.
Back
to top
[Version 6.2.9] 10/3/2012
This update contains the following items:
- Added kWh/Ton-hr metric to the economic summary report. This
measures the plant's overall energy efficiency.
- Added
90.1-2010 library members.
- Added a diagnostic error message
to display when a WSHP loop is missing thermal storage
- Updated both evaporative and dry fluid cooler calculations. The
updates are based on EnergyPlus algorithms.
- Updated
90.1-2010 Heat Pump library members to comply with IC 90.1-2007-09
of ANSI/ASHRAE/IESNA (Operation between 40F-17F).
- Updated
the default cooling tower throttling value. Changed from 5F to
0.5F.
- Updated the cooling equipment tab to allow a condenser
water pump for each chiller when a plant level cooling tower is
applied.
- Fixed the economizer control point for SZVAV.
It was incorrectly setting the control point too low, causing excess
ventilation during the winter months.
- Fixed the duplicate
entries in the LEED summary report.
- 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 chilled water
pump(s) incorrectly staying off when the lead chiller is scheduled
off but the remaining chillers are scheduled available during an
hour when Thermal Storage has met the entire cooling load.
- Fixed the export gbXML output on the file drop-down menu.
- Fixed a "divide by zero" error in the visualizer that
was causing the "Bldg Elec Monthly Energy Costs by Equip"
to go to infinity.
- Fixed the "plants" entered
values report which was incorrectly displaying pump power.
- Fixed a reporting error on the system component selection report
that was missing the main heating coil for PFPVAVMBO.
- Fixed
an operational change that occurred in version 6.2.8.3. The heating
airflow is now allowed to go higher, but not more than the heating
VAV max airflow, and the fan will cycle higher as a result.
- Fixed an error in linking the airside coil capacities to the
plant capacity.
- 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 a
calculation error in the VRH system. The system was not maintaining
drift point control during unoccupied hours.
- 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 Er value for PFPVAVMBO
systems in the 62.1 report. The default was changed from 0% to
30%.
- Fixed the UFAD system design cooling coil leaving
temperature.
- Fixed the plant chilled water pump sizing to
correctly use the chilled water evaporator leaving temperature when
W/gpm is selected.
- Fixed the system component selection
report to properly report the amount of secondary fans and shut off
VAV boxes in the system.
- Fixed system types VAVBB Skin
heating and VAV Forced flow skin heating to have reheat coils.
- Fixed the reporting of miscellaneous pump energy in the LEED
report.
- Fixed ERD control with frost prevention to decrease
gas usage.
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[Version 6.2.8] 3/30/2012
This update contains the following items:
- 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.
- Added the ability
to export a COMNET XML file for LEED submission on the COMNET
website.
- Added VAV IntelliPak and Voyager rooftops in the
cooling equipment library.
- Added the ability to view the
LEED Summary Report if the economics portion is not calculated.
- Added two new air cooled chiller/ice storage templates for the
Plant Wizard.
- Changed conversion for ft. of water in Rate
Structure Library.
- Changed the LEED Summary Report to not
show the optional ventilation fan if the fan type, flow rate, or
static pressure is not selected.
- Changed the Utility Rates
Library to allow six significant digits after decimal.
- Fixed an error that did not let the user change the U-factor of
a copied door.
- Fixed an error that reported excessive tower
makeup water in the WSHP loop.
- Fixed an error that
prevented the cooling tower unloading curve to unload correctly when
using kW units.
- Fixed an error that incorrectly calculated
the dry cooler energy consumption when set as a heat rejection
device.
- 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 where fan cycling was only partially
turning down the fan for mixing systems.
- Fixed an error
that defaulted to the library pump flow rate value when the hot
water pump rate was entered as zero. User must select “none” in the
pump field.
- Fixed an error in the Visualizer that did not
reduce the electric demand when lighting demand was unselected from
the graphs.
- Fixed an error that under-reported heating
loads when VAV system preheat coils were manually undersized.
- Fixed an error where units of Hp and kW/cfm were not being
converted correctly.
- Fixed an error that did not use the
Vertical bore imported by the user.
- Fixed an error that
incorrectly sized the chiller when only a base utility was assigned
to it.
- Fixed an error that calculated incorrect energy
consumption when a dry cooler was selected as a heat rejection
device and a fluid cooler was selected as a free cooling
device.
- Fixed an error that did not show the cooling tower
heat rejection in the geothermal summary report.
- Fixed
schedule graphs that were not graphing correctly.
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[Version 6.2.7] 7/8/2011
This
update contains the following items:
- Added the ability to import epw weather files.
- Added
two new room types.
- Added the ability to enter negative
numbers for the LEED Fan Power Adjustment value.
- 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.
- Updated the Environmental impact information.
- Added geothermal library members.
- Expanded the cogen
library to include two new members.
- Added the ability to
modify system profiles.
- Fixed an error preventing the
copying of glass with no dimensions or percent in the file
wizard.
- Fixed an error that incorrectly changed the block
load on a VRF system between the design and simulation phases of the
program.
- Fixed an error that incorrectly reported too much
backup heating on geothermal systems with variable volume chilled
water pumps.
- Fixed an error that prevented the internal
shading parameters from being shown on alt 2.
- Fixed an
error that prevented an energy recovery wheel from operating when
the main supply cfm is specified.
- Fixed an error that
prevented Trace from using more than one boiler when the "link
airside coil capacities.
- 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 would crash
Trace when condenser water reset was selected and building rotation
was enabled.
- 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 that resulted in the
chilled water pump energy to be doubled when multiple chillers are
attached to the same plant.
- 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 excessive heating on sfpvav systems when using the
"Supply Air Reset Per Worst Case Room" with the "Use
system default outside air reset" checked off.
- Fixed
an error that prevented a VRF system from rejecting heat to
purchased chilled water instead of a condenser.
- 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 prevented the main cooling coil
from being turned off for two pipe system configurations.
- Fixed an error that resulted in two small of makeup water values
in direct evaporative systems.
- 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 cased the design airflows in the PRM alternative to be
incorrect if Packaged EER or Packaged COP were selected.
- Corrected the condensate return pump energy units.
- Corrected the U-value for an external door.
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[Version 6.2.6.5] 10/05/2010
- Fixed an issue where the auxiliary heating equipment is not
being used when condenser loop temperatures drop below their
minimum.
- Fixed an energy value issue that reduced the energy
usage on the LEED Summary report by a factor of 1000.
- Fixed
an issue that omitted the usage of purchased steam on the LEED
Summary report.
- Fixed an issue that displayed the averaged
unmet hours for the baseline alternative rather than the zero-degree
rotation on the LEED Summary report.
- Fixed an issue that
added the geothermal pump power to the auxiliary cooling and heating
energy usage on the Energy Summary report.
- Fixed a problem
that caused unmet hours when using VRV/VRF airside systems and blank
VAV minimums.
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[Version 6.2.6] 9/1/2010
This
update contains the following items:
The Fuel Source and
Reject Condenser Heat to Reference Type fields have been updated to
Heating Plant and Heat Rejection Equipment, respectively for:
- Air to Air Heat Pump
- Air to Air HP w/ Demand
Defrost
- VRF Heat Pump
- VRF Heat Pump (digital
scroll)
- VRF Heat Pump (Variable Speed Compressor)
- Default Water Source HP
- Ground Source HP – High
Effic
- Ground Source HP – Reg Effic
- Water Source HP –
High Effic
- Water Source HP – Reg Effic
- Added Close Ventilation Dampers during unoccupied hours option
to Change Energy Parameters.
- Added compressor energy
breakout options for unitary equipment to allow for packaged energy
rates to be entered without manual separation.
- Added the
LEED Summary report for use with LEED submission documents.
- Added the LEED Settings dialog box to configure the LEED
report.
- Added numerous potential errors related to the ASHRAE
90.1 Appendix G/LEED Process to Scan for Errors.
- Added the
ability to model heat recovery VRF systems and two default VRF heat
recovery plants.
- Added the PRM Fan Details report to show
calculated factors for determining fan power and power distribution
among fans for Appendix G.
- 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.
- Archived legacy VRF heat pump and VRF cooling
only plants.
- Moved Energy Source from the Controls section
to the Cooling Equipment screen.
- Moved Reject Condenser
Heat from the Controls section to the Cooling Equipment screen.
- Moved Reject Heat to Plant from the Controls section to the
Cooling Equipment screen.
- Removed options to view archived
or T600-named library entries.
- Removed the PFPVAV system in
favor of the PFPVAVMBO system.
- Increased the number of
rooms that can be simulated with daylighting from 1000 to 3000.
- Increased the number of significant digits on the Economic
Parameters report.
- Numerous updates for the Bidirectional
Cascade flow scheme when modeling a central geothermal 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 issue that prevented the GLHE temperature from
surpassing the design condenser entering or going below the design
minimum temperature.
- Fixed an error that didn't properly
show the fan power on the ECB/PRM Summary report when using custom
fan curve units.
- Fixed an error that prevented certain
types of shading from operating in the southern hemisphere.
- Fixed an error that prevented the Plants Entered Values reports
from being displayed.
- Fixed an error that incorrectly
assigned ventilation load to main coils when using specific
dedicated OA systems in the design simulation.
- Fixed an
error that prevented the design chilled water temperature from being
copied from the library to the Controls screen.
- Corrected
an error that doubled the oversizing for individual equipment on the
Equipment Energy Consumption report when Link Airside Coil
Capacities was enabled.
- 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.
- Fixed an error
where Chiller Tower Optimization was not properly used with respect
to the chiller.
- Fixed an error that incorrectly calculated
cooling tower make-up water when using gpm or lps.
- Fixed an
error that increased the FL rate in heat recovery mode for a heat
pump by 12.
- Fixed the DHW condenser heat recovery system
when using Reject Cond Heat = Domestic Hot Water.
Back to top
[Version 6.2.5] 3/22/2010
This
update contains the following items:
- Numerous calculation speed enhancements.
- Added default
closed-circuit cooling towers based upon ASHRAE 90.1-2007 equipment
performance.
- Removed variable volume fan Z-factor
calculations from all variable volume fans.
- Fan Curve 1 was changed to more closely approximate a
forward curved fan.
- Fan Curve 3 was changed to more closely
approximate a forward curved with discharge dampers.
- Fan
Curve 9 was changed to more closely approximate the usage of a
VFD
- CZR-VFD set to be a standard library member.
- Fan
Curve 7 was archived.
- Fan Curve 8 was archived.
- Critical Zone Reset was archived.
- EQ4280CZ was
archived.
- EQ4223CZ was archived.
- BI fan w/inlet vn (Eq4204) curve changed from Fan Curve On/Off
to Fan Curve 2.
- AF Centrifugal var freq drv (Eq4280) curve
changed to use the new Fan Curve 9.
- BI Centrifugal var spd
mtr (Eq4239) curve changed to use the new Fan Curve 9.
- FC
Centrifugal vav/inlet vn (Eq4203) set to be a standard library
member.
- FC w/VFD Crit Zn Reset (EQ4223CZR) set to be a
standard library member.
- AF w/VFD Crit Zn Reset (EQ4280CZR)
set to be a standard library member.
- Axial fan with VFD
(EQ4202) set to be a standard library member.
- AF w/IV Crit
Zone Reset (Eq4201) was archived.
- AF w/VFD Crit Zone Reset
(Eq4280) was archived.
- FC w/IV Crit Zone Reset (Eq4203) was
archived.
- FC w/VFD Crit Zone Reset (Eq4223) was
archived.
- Changed all critical zone reset fan
curves to follow a cubic relationship.
- Changed the unmet
hours calculation so that only unmet hours in the zero degree
rotation are used for the baseline alternative.
- Changed the
reporting of door areas in the Checksum reports to match that of
window area reporting.
- Added ability to model Trane's
Bidirectional Cascade system.
- Added ability to simulate a
horizontal wellfield using IGSHPA calculations.
- Added
ability to simulate a vertical wellfield using an imported IDF file
from a wellfield design program.
- Added ability to simulate
a custom wellfield by creating a custom Geothermal Schedule.
- Added ability to create custom chilled water reset curves in the
Curves Library.
- Added ability to create custom condenser
water reset curves in the Curves Library.
- Added a Flow
Scheme option to switch between traditional Fully Mixed ground loop
calculations and Bidirectional Cascade.
- Added new RTWD
equipment for Bidirectional Cascade operations.
- Added new
thermal storage types to simulate various ground loop heat
exchangers.
- Added the ability to use ASHRAE 90.1-2007 PRM fan
power calculations with associated pressure credits.
- Added
the ability to enable ASHRAE 90.1-2007 PRM calculations and disable
building rotation for analysis purposes.
- Added units of
watts per gpm for chilled water and condenser water pump types.
- Added two additional output reports for geothermal systems:
Geothermal Summary and Geothermal Plant Load Summary.
- Added
additional fields to the TRACE Visualizer (Graph Profiles and
Energy) for cogeneration and geothermal selections.
- 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.
- Disabled direct dehumidification during unoccupied
hours.
- Fixed an error that would eliminate baseline fan power
when unconditioned spaces were assigned to a baseline system.
- Fixed an error that would not display some energy usage when a
heat pump airside system was used on the Equipment Energy
Consumption report.
- Fixed an error that prevented load
shedding economizers to work properly.
- Fixed an error that
would not account for negative base utilities on the ECB
report.
- 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 an error that would oversize boilers when absorption
chillers were used in conjunction with cogeneration equipment.
- Fixed an error that would prevent energy values to be calculated
when the calendar definitions contained fewer than five
daytypes.
- Fixed a skylight load error that would incorrectly
read legacy values and not report the correct skylight loads.
- Fixed two errors that would ignore the capacity of a
humidification coil during the system simulation.
- 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 in the Economic Summary report that would
not display fuel sources other than electric in the graphs.
- Fixed an error that prevented custom doors from being exported
and imported via EXP files.
- Fixed an error that would hide
the reheat coil when using the PFPVAVMBO system type.
Back to top
[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 the Equipment Energy Consumption
report to show heating energy usage for a heatpump cooling
plant.
- Updated several system images with additional
labeling.
- Updated the Economic Summary report to include more
graphs but similar economic information.
- Fixed several
errors displaying economic values with large files.
- Fixed
an error displaying equipment energy consumption with SI units on
the Equipment Energy Consumption report.
- Fixed a demand
limiting error.
- 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
prevented hot gas reheat for dehumidification from working properly
with dedicated outside air 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
that would double-account adjacent floor loads during the System
Simulation.
Back to top
[Version 6.2.3] 9/2/2009
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 with Available 100% as the optimum
start schedule during specific levels of occupancy.
- Fixed
an error that would prevent the Design Cooling Capacities report
from being displayed.
- Fixed an error that would incorrectly
display fan power when heating-only systems were used in conjunction
with PRM calculations.
- Fixed an error preventing the
importing of .lds and older TRACE archive files.
Back to top
[Version 6.2.2] 7/31/2009
This
update contains the following items:
- Added the ability to use Available 100% as an optimum start
schedule.
- Added additional information to the Building
Temperature Profiles report which displays when unmet load hours
occur.
- Added two additional biquadratic VRF models based upon
variable speed compressors and variable flow refrigerant (digital
scroll).
- Added additional common errors to be checked when
using Scan for Errors including incorrect usage of thermostat
schedules.
- Added two additional air-cooled scroll
chillers.
- Added the ability to directly import glass from
LBNL Window 5.
- Added the ability to import multiple pieces
of equipment simultaneously from TOPSS.
- 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 that displays energy usage for an alternative
when that alternative's Energy Simulation was not calculated.
- Fixed an error which allows for more combined area when using
openings than the total wall area.
- Fixed an error that
incorrectly calculates daylighting when a room has an exposed floor
and dimensional glass geometry.
- 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 would incorrectly display component energy usage in the
Visualizer.
- 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 remove equipment energy usage when demand limiting was
used.
- Fixed an error that would prevent TRACE Load (.lds)
files from being imported into TRACE or Load Design.
- Fixed
an error that ignored the Reset and Lockout definitions for lighting
schedules.
- Fixed an error that incorrectly calculates the
return air temperature for DV/UFAD systems when a plenum return is
used.
- Updated Hot Gas Reheat for Dehumidification to be used
with optional ventilation coils.
- 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.
- Fixed an
error that incorrectly reported unmet load hours with ACHBEAM.
- Corrected the optimum start usage for SZ and VTCV systems.
- Fixed an error that incorrectly assigned all coil capacity to
the first piece of equipment when airside coils are linked to plant
capacities.
- Corrected three infiltration Heating Design
definitions (Infil - Low rise office, Infil - High rise office, and
Infil - Retail grocery store).
- Fixed several Plant Wizard
templates to correctly assign capacity percentages to individual
equipment.
Back to top
[Version 6.2.1] 3/31/2009
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 the ability to define rooms as
conditioned or unconditioned.
- Added additional common
mistakes to check for in Scan for Errors.
- Updated the
default ASHRAE 90.1-2004 library to fix a hot water reset curve
error and a PTAC energy rate error.
- Updated the System
Temperature and Humidity Profile reports to show occupied and all
hours.
- 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.
- Changed the
order of equipment displayed on the Equipment Energy Consumption
report.
- 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 would prevent full year weather from being
imported correctly.
- 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 eliminated the Default Air
Cooled Condenser when using plant level heat rejection.
- 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 system profile
from being edited in Chiller Plant Analyzer.
- Fixed an error
that would incorrectly show gas consumption on the Energy Cost
Budget report for equipment with no gas consumption when Base
Alternative For Energy Cost Budget Method has been selected.
- Fixed an error that would prevent the ASHRAE weather overrides
from being saved in an archive file with imported weather.
Back to top
[Version 6.2] 12/10/2008
This
update contains the following items:
- Added active and passive chilled beam systems.
- Added
constant and variable volume displacement ventilation systems.
- Added constant and variable volume underfloor air distribution
systems.
- Added hot gas reheat for dehumidification.
- Added ASHRAE weather from 2005 Handbook of Fundamentals.
- Added water consumption algorithm for cooling tower to calculate
water usage.
- 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 ability to input biquadratic
unloading curves for cooling plants.
- Added ability to model
hot water reset and condensing boilers as a function of OADB.
- Added ability to import several chiller selections from
TOPSS.
- 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 TRACE User's Manual with
more topics including topics that discuss the new airside
systems.
- Updated system graphics.
- Updated system
graphics for the Plant Wizard and Chiller Plant Analyzer.
- Fixed the demand defrost curves for air-to-air heat pumps to
allow for proper defrost usage.
- Fixed an issue when the
exhaust fan kW would be incorrectly calculated based upon entered
static pressure.
- Fixed an issue that would not allow a
preheat coil to operate with a VRH system during unoccupied
hours.
- Fixed an error that would omit the Summer Ground
Reflectance when changed by a user.
- Fixed an error that
would ignore discriminator controls for some systems.
- Fixed
an error that would ignore internal shading for windows that were
defined with spectral glass.
- Fixed an error with the fan
coil system that would reset room SADB based upon system-level
SABD.
- Fixed an error that would incorrectly assign the CO2
sensor location in templates based upon previous alternatives.
- Fixed an issue with DDVAV that would incorrectly set the cold
deck return outside-air CFM.
- Fixed an issue that would
eliminate chiller energy usage with heat recovery machines and tank
charging.
- Fixed an error that would double the multiplier
used to link plant and coil capacities.
- 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.
Back to top
Trane,
in offering the Trane Air Conditioning Economics (TRACE™ 700) 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.
[Version 6.3.2] 9/11/2015
