release notes seasonal simulator 2.4.0.0 - daikin notes solutions seasonal si… · web viewthe...

Release notes Seasonal Simulator 2.4.0.0Version date: dec 4, 2017

Jira issues

SSS-5. Calculation refreshes when changing building profile or climate

Release notes Seasonal Simulator 2.3.0.0Version date: Aug 8, 2017

Jira issues

SSS-3. Seasonal Simulator Database Update.

Release notes Seasonal Simulator 2.1.0.1Version date: April 23, 2014

The results of the seasonal efficiency calculation on the compare-tab were displayed incorrectly if one of the solutions had a zero cooling load (e.g. when a VRV system was compared with a gas heater).

Release notes Seasonal Simulator 2.0.2.6Version date: March 25, 2014

TopDesk Incidents

140321-027 The connection ratio slider for Altherma Flex models could not be changed.


Repaired translation preview mode, which was broken.


TopDesk incidents140303-042 The maximal capacity of a system with a backup heater (e.g. an Altherma system with gas heater) is increased.

140217-055 The quantity of a system was not taken into account in comparing the load of two solutions

1402030-043 When comparing the load of two solutions, backup heaters appeared to have some cooling load.

140128-019 All terms appearing in the UI are now translatable. Also, more screen elements now resize to the text they contain, so longer translations are not clipped.

Release notes Seasonal Simulator 2.0.1.2Version date: Januari 22, 2014

Fixed an error in the handling of ‘&’-sign by the translation module.

Release notes Seasonal Simulator 2.0.1.1Version date: Januari 6, 2014

Fixed a bug that made the application crash when opening a project file.

Release notes Seasonal Simulator 2.0.1.0Version date: December 19, 2013

This version of the Simulator contains many improvements over version 1, like:

- Multi-system solutions- Back-up heaters- Custom building types- Support of Watercooled VRV, Altherma and Altherma Flex models- Advanced load profiles like constant cool load or constant heat load- Solution basket and comparison of solutions- Return of investment

Release notes Seasonal Simulator (acc) 2.0.0.41Version date: December 18, 2013

TopDesk Incidents131217-009 New version of the pdf-document with the calculation steps

131217-047 The cooling and heating sliders are now also adjusted if the indoor cooling or heating temperature are changed.


TopDesk Incidents131217-009 A link to the pdf-document with the calculation steps has been added to the results tab and the compare tab.

131217-022 Label ‘Indoor temperatures’ changed to ‘Indoor temperatures (CDB)’

131217-023 The application now shows a warning whenever the currency is changed, or when another currency than Euros is selected.


New disclaimer text The hyperlink (“more information here”) in the disclaimer text points to https://acc.daikin.centriconline.nl/daikin/Solutions%20Seasonal%20Simulator%20-%20Calculation%20Steps%2020131213.pdf (in the production version of the software, the link will point to the same url, without ‘acc’.)

As a side effect of making this hyperlink work, the mailto-link at the end of the disclaimer text is now a functional link as well.

New pricesThe default prices, etc in the preferences are updated according to the table below.

Note, however, that these values will only be applied in new installations of the software. Existing installations will continue using the existing values.

TODOThe country dependent CO2 emission factors still have to be changed in the central database. Changing these values will not require a new version of the Simulator software.


TopDesk incidents131203-035: The initial load of VRT-models was not calculated correctly. Fixed.

131126-046: Recalculation of gas price when switching from from E/m3 to E/kWh or vice versa.

131203-036: The initial connection ratio of VRV IV CLASSIC models was set to 130%, which is an invalid value. This resulted in ‘flat’ graphs.

https://acc.daikin.centriconline.nl/daikin/Solutions%20Seasonal%20Simulator%20-%20Calculation%20Steps%2020131213.pdf

https://acc.daikin.centriconline.nl/daikin/Solutions%20Seasonal%20Simulator%20-%20Calculation%20Steps%2020131213.pdf

Release notes Seasonal Simulator (acc) 2.0.0.34Version date: November 26, 2013

TopDesk incidents130527-053: The application now is digitally signed.

131126-041: When switching the gas price unit from E/m3 to E/kWh or vice versa, the price is multiplied by or divided by the calorific value.


TopDesk incidents131121-033: The application hides heat recovery models. Altherma Flex models are renamed to ‘Air cooled heat pump’, and their ability to work with heat recovery is switched off.

ReportThe report now includes the Daikin logo and a page number on each page.


TopDesk incidents131018-030: The information button now shows the correct hyperlinks for all series EXCEPT the EBHQ-BV3-series.

Other fixesThe computed heating capacity for Altherma models was 0 kW for ambient min/max. This led to situations as shown in this screen print:

In this case, the heating load of the system was 0 kW and could only be increased by adding a backup heater. This behavior is fixed.

TopDesk incidentsRelease notes Seasonal Simulator (acc) 2.0.0.25Version date: November 20, 2013

TopDesk incidents131018-026: (un)checking VRT did reset slider values. Now it leaves slider values untouched.

131028-028: The application now shows the sum of the heat load and cool load in the solutions if the differ too much.

131106-032: Constant heat/cool load sliders now cannot go higher than the available capacity.

Other fixesCustom building types now can be modified after they were saved.

The title of the machine section was incorrect for non-daikin heaters. The application always showed ‘Backup heater: none’, even if a back-up heater was selected. Now the correct title is shown.

The application now show correctly on which date it will stop working.

Database reorganizationThe product families, application types, series and models are reorganized. The now each have a code and a name. The code is an unique, immutable, identifier for the record. The name is what is shown in the application.

This reorganization allowed us to show the ‘bare’ model code for the Daikin Altherma models that can be operated both as heat pump and as heating only model, instead of ‘EBHQ006BAV3 – LTHP-S’ or something similar.

In short: the reorganization allows changing the names of product families, application types, series and models without further consequences.

Apart from this technical reorganization, the existing Daikin Altherma series (‘Monobloc’ and ‘Split’) were replaced by the series from tbl_AlthOutdoorUnit (‘EBHQ-BV3’ and so on). The names of these series are decorated with either ‘Monobloc’ or ‘Split’. This change was required because the Information-button in the Seasonal Simulator needs to point to different web pages for each new series.


TopDesk incidents130527-058: Save button on the building tab

131018-027: Do not show indoor cooling temperatures in case of heating only models

131018-023: Currency symbol at axes’ legends.

130926-055: Add the word ‘main’ to the legend.

131022-020: Backup heater collapsed by default

131010-026: Implement opening and saving of projects

PerformanceThe performance of the calculation is improved.

Release notes Seasonal Simulator (acc) 2.0.0.23Version date: October 21, 2013

TopDesk incidentsThe following topdesk incidents were fixed:

131007-039: Setting the indoor temperature sliders to extreme values led to unexpected results on the results tab.

131003-020 (partially): The design section, indoor temperatures and prices section are swapped.

130926-052: The symbols in the legend for the heating and cooling are changed.

130926-050: ‘Secondary system’ is replaced by ‘backup heater’

131017-012: A scrollbar was added to the electricity tab on the preferences window

131016-013: The heating area of the backup system was not displayed in some scenarios.

131003-031: (partially fixed): The labels on the results page were changed (‘heat recovery mode’ instead of ‘heat recovery savings’), but the heat recovery savings are not yet presented explicitly on screen.

131018-025: Evaporating temperature in ‘C instead of %.

131015-052: CO2 emission calculation for gas and fuel corrected.

131017-012: Electricity tab in preferences screen now has a scrollbar.

More fixesThe design graph is now updated if a new country is selected in the preferences screen.

The application sometimes crashed if the heat load slider was moved up in a configuration with a backup heater.


TopDesk incidentsThe following topdesk incidents were fixed:131007-034 – Error when selecting a VRV Watercooled ‘30% Brine’ or ‘40% Brine’ model.

130927-006 – Max. value of connection ratio for Altherma Flex models.

131003-017 – Design evaporating temperature can no longer be changed by the user. The drop down list is replaced by a label.

130527-060 – The user now has to accept the disclaimer on every change of the major or minor part of the version. Changes in the build or release part does not force renewed acceptance of the disclaimer.

131003-016 – Error in VRT results for design evaporating temperatures of 9 or 11 degrees Celcius.

131010-14 – Gas connection cost unit was changed to ‘EUR/year’.

Design section(TopDesk 130927-018, 130927-035, 131003-002, 131007-053, 130927-052)A number of changes have been made in the design graph logic. The behavior of the design graph is now mostly in accordance with what was discussed on 10/10/2013.

- The range of the x-axis is that of the climate, extended with 5 degrees on both sides (the amount is a fixed setting in this version, but we could add this setting to the preferences screen).

- The heating slider cannot exceed the capacity line, unless there’s a back-up heater.- The cooling slider can never exceed the capacity line.

- The lower bound of the main system heating operation range cannot be changed by the user unless there’s a back-up heater

- The upper bound of the main system cooling operation range cannot be changed by the user.

- If constant heat load > 0 in a non-heat recovery system, the cooling load is set to 0 (and vice versa).

- The heat recovery zone is now displayed correctly for constant heat load and constant cool load.

Known graph related issues:

- Scenario: select a VRV Air cooled heat pump system with a back-up system. The user can now increase the value of the heating load slider above the maximal capacity of the main system. This is correct: the back-up system should fill in the missing capacity. However, if ‘optimize for seasonal efficiency’ is checked, the capacity graph gets adjusted in such a way that it stays above the load triangle:

- An Altherma system without back-up heater cannot be designed. The maximal capacity of the system at ambient min is zero. The allowed heating load cannot exceed the maximum capacity. Hence, the heating load cannot be set to a value greater than zero:


TopDesk incidentsThe following topdesk incidents were fixed:131007-036 – at application start-up or when another country is selected in the preferences

131003-036 – Water flow rate changed in “l/min”

130926-052 – (partially fixed) Heating and cooling load graphs are shown or hidden according to the checkboxes in the legend. The legend does not show triangles yet.

130930-013 – Tooltips and units in the design section legend are fixed.

131007-043 and 131007-037 – The ‘trackers’ have been removed from the graphs

131007-038 – The indoor temperature sliders were not always updated correctly when a different product family was selected.

131007-053 – It is no longer possible to extend the operational range outside of the climate graph.

130927-010 – It is now possible to select heating and cooling indoor temperatures for ‘building not in use’ for Altherma systems.

Heating/cooling range for VRV watercooled systemsThe operational range’s minimum and maximum temperature and initial lower and upper temperature are changed for VRV watercooled systems.

Design section legendThe legend is pruned according to the system’s capabilities: the items about cooling graphs are removed for heating only models.


TopDesk incidentsThe following topdesk incidents were fixed:130926-048 – default values of heating range and cooling range sliders set to 15 and 17 ‘C, except for heat recovery models

130926-051 – dark and light orange heating colors swapped.

130926-056 – application crashed when user changed country

130926-057 – number of digits shown for seasonal efficiency

130926-060 – leaving water temperature labels and tooltips

130927-005 – prices and temperatures expanders are now collapsed by default

130927-014 – error when changing product family

130930-007 – default building type is now ‘Office’


TopDesk incidentsThe following topdesk incidents were fixed:130926-036, -037, -038, -039, -030, -041, -042, -043, -045, -046, -047.

Most changes are textual or have to do with default values in the settings window. Note that there new default values are only applied in a fresh installation of the software. In case of an upgrade, the old default values will be used.

Release notes Seasonal Simulator (acc) 2.0.0.13Version date: September 30, 2013

Prolonged life span till October 7.


IntroductionThis is the first version that is meant for testing by end users. Most of the core functionality has been built, and most of the VRV, Daikin Altherma and Daikin Altherma Flex models can be used. Loading and saving projects and report generation are not complete yet. The open and

save buttons have been removed temporarily. Reports can be generated, but they contain hardly any data.

System pageAdvanced settings sections for VRV Water cooled, Daikin Altherma and Daikin Altherma Flex.The expanders are ‘expanded’ by default (instead of collapsed).

CalculationMany improvements, esp. for the purpose of VRV Watercooled and Altherma (Flex) models.

Results page, Compare page, return on investmentComplete.

Google analyticsGoogle analytics data of the production and the acceptation version of the application can now be investigated with the same Google account.

ModelsSome models are missing (VRV air cooled heat recovery, Daikin Altherma Split).The division of Daikin Altherma Monobloc models in application types and series was not clear. Those models are for the time being duplicated in different application types and series.


Preferences windowThe preferences window now contains settings for gas, oil and pellet prices. The default values are ‘found on the Internet’ and are not final!

CalculationFurther improved.


Graphs, calculationThe calculation is improved, although it is not perfect yet. Some known issues:

- Constant heat load and constant cool load are not shown in the design graph.- The results page shows zeroes for the secondary systems.

ModelsThe model collection in the application is almost complete. VRV air cooled heat recovery models are still missing. There were no Altherma split models present in daikin.mdb, only monobloc models, and therefore the only Altherma series in the application is called ‘monobloc’.

Heat recoveryHeat recovery can be tested with the VRV water cooled heat recovery models.


Graphs, calculationThis version contains the first attempts to connect the calculation module to the user interface. The user interface as such is pretty much unchanged compared to the previous version.

The calculation isn’t perfect yet. For example, the graphs sometimes show a secondary system even if none is specified, while the results page and the compare page never show results for a secondary system, even if one is specified.


FixesSome fixes in the machine section

Design sectionCurrently not working. We are in the midst of connecting the new calculation software to the new UI.


Load profilesLoad profile properties are added to the application type table, and used by the application.Almost all product families, application types and series have been added to the database, but the database contains ONLY the existing VRV models. The explicitely set load profiles from version 2.0.0.4 have been removed. This means that right now the load profiles cannot be tested.

System tab

System tab: temperaturesNew section. Contains the dual set point / system off checkboxes and the indoor temperature sliders that previously lived in the design section.

Results tabThe order of the bars in the seasonal efficiency graph has been corrected.

Compare tabAll graphs have been added.

Note: the graphs on the results tab and the compare tab still contain random data.

Release notes Seasonal Simulator (acc) 2.0.0.4MultilingualityMost of the UI can now be translated. A translator can preview concept translations in the application. They become available for selection by pressing Ctrl-Shift-P in the preferences window.

Preferences windowUnchanged (apart from concept translation preview)

Main windowOpen, save, save as, new buttons added. Not all of the data in a project gets saved and restored in this version. Detecting if the project is ‘dirty’ (and thus should be saved) only in a rudimentary version.

Project tabNew.

Location tabCO2-emission factor has been removed here.

Building tabNo changes

Solution tab, ‘+’ buttonThe user can add and remove solutions.

System tab, ‘+’ buttonAdd and remove systems.

System tab: Main system, secondary systemThe list of product families has been extended with back-up heaters. If a model that can co-operate with a back-up heater is selected as main system (RYYQ10T7Y1B only, see table below), the secondary system section is shown.

Some models have explicitely set load profiles, for the sake of experimenting with different load profiles:

RYYQ10T7Y1B Can cooperate with a back-up heaterRYYQ12T7Y1B Constant cool loadRYYQ14T7Y1B Constant heat loadRYYQ16T7Y1B Cooling onlyRYYQ18T7Y1B Heating onlyRYYQ20T7Y1B Heat pumpRYYQ22T7Y1B Heat recoveryRYYQ24T7Y1B Constant cool load and constant heat load

A secondary system can be deleted by pressing the ‘X’-button in the top right corner of the secondary system section

System tab: pricesInitial cost and annual maintenance cost of the entire systemQuestion: what if the amount of systems is greater than one, e.g. 10? Are the prices per instance or are they the total price for 10 systems?

System tab: design sectionIf location or main machine is empty, a text is shown explaining that you cannot design the system yet.The graphs show the data of the main machine. The secondary machine is not taken into account yet.If the model has the load profile ‘Constant cool load’ a slider is shown on the right of the graph. Likewise for ‘Constant heat load’. Can be tested with RYYQ12T7Y1B, RYYQ14T7Y1B and RYYQ24T7Y1B.Cooling only, heating only, heat pump and heat recovery load profile have no effect in this version.

Results tabThe number of bars in the graphs on the results tab reflects the number of systems in the solution. The numbers are entirely random. The currency symbol is also not correct yet.

Compare tabTo do.

Report tabPrototype. By pressing the button you can generate a word document containing the climate graph.

Release notes Seasonal Simulator (acc) 1.1.0.12Version date: june 13, 2013

Google AnalyticsThe acceptation version and the production version now use a different google analytics app-id.The application now logs the selected model, location, building type, currency and total cost when the results are computed.

Release notes Seasonal Simulator (acc) 1.1.0.11Version date: june 12, 2013

Side by side installationThe acceptation version and the production version can now be installed side by side. Click-once will no longer complain that the application was already installed from a different location.

ExpirationThe acceptation versions will stop working seven days after they were created.

Release notes production version Seasonal Simulator 1.1.0.7Version date: may 31, 2013

Terms of useThis version contains the terms of use as defined by Daikin.


‘Security zone’ errorThis version attempts to fix an error during installation.


Test settingsThe two test settings that were used in the test phase have been removed.

Version expirationThe production version does not expire on june 1st.

Storage locationThe local database files are no longer stored in the user’s documents folder, but in the local settings folder.

Release notes acceptation version Seasonal Simulator 1.0.0.31Version date: may 29, 2013

Built especially for the production server (http://daikin.centriconline.nl/Daikin/)

Release notes acceptation version Seasonal Simulator 1.0.0.27/28Identical to version 1.0.0.26. Used to test the application upgrade process.


Version updateThe application always checks if a new application version is available.

Data updateThe application checks if the version of the databases is up to date and downloads new databases if it’s not.

Design pageThe top of the load graphs is calculated from the capacity graphs.Tooltips added.

DataSome data (countries, locations and currencies) were hard-coded. Now, the application fetches them from daikin.db.

Release notes acceptation version Seasonal Simulator 1.0.0.25Version date: may 21, 2013.

Google AnalyticsThis version contains experimental code to send page view and exception events to Google Analytics.

Connection RatioThe connection ratio text box is replaced by a slider. The slider has a range of 50% - 130%.

Design PageThe bounds of the horizontal axis are calculated from the climate and model properties. The limits of the operation range sliders follow from the model properties.The limits of the indoor temperatures sliders also follow from the model properties.


Location pageThe text about the minimum and maximum of the climate in the selected city has been removed.

Design pageThe height of the graph does no longer change if you open the expander (‘More…’)The minimum and maximum of the x-axis follow the selected climate. Note: this limits the range of the horizontal sliders to the selected climate, but it does not yet take the model properties into account.

Results pageIf no building size is specified, the annual energy cost per m2 graph is replaced by a notification.

The caption of the annual energy cost per m2 is changed. Small colored rectangles have been added as a kind of legend to the graphs.The currency symbol is shown as unit along the x-axis of the graphs (where applicable).

All slidersAll sliders now show a tooltip while they are being changed by the user.

RobustnessThe program should now correctly handle a direct jump to the design page or the results page, while no location, building type or model has been selected.


Expiration dateThe program will stop working at june 1st, 2013.

Downloading datababase filesWhen downloading database files, this version uses the default user credentials to connect to the proxy server.

DatabaseThe model table in daikin.db is extended with a column indicating if the model is equipped with VRT.

Design pageCheckbox ‘optimize for seasonal efficiency’ is now only shown if the selected model is equipped with VRT.

The horizontal axis is fixed (-25 min, +45 max).

The scale of the load axis is adapted according to the properties of the selected model.

The heating and cooling load sliders are initialized at 50% of the height of the graph.

Operational range for heating is initialized at -25 .. 16 ‘C; for cooling at 20 .. 45 ‘C.

Results pageAnnual running time: Label ‘total’ replaced by ‘off’.The order of the bars for efficiency changed (so it is the same as the order in the text).

Changing countryIf another country is selected in the settings window, the city selected on the location page is cleared.


Version numberThe version number is now shown in the window titles.

CO2 emission factorUnit (kg/kWh) added; three digits shown

Electricity pageLay-out of checkboxes is changed; legend added; labels changed.

Settings windowThe round ok and cancel buttons are (for the time being) replaced by ordinary text buttons. It seems that the graphical version of these buttons was the cause of application crashes on some machines.

Location pageMinor ticks on the x-axis now at every 2 ‘C, major ticks at every 10 ‘C.

Building pageLay-out of checkboxes is changed; legend added; labels changed. Building surface is no longer required. [todo: hide cost/area if value is missing]

System pageSeries drop down box is wider and showing full name of series.Tooltip text added to evaporating temp. drop down box.

Pipe length: default value and maximum value changed to 10% and 30% respectively.Labels ‘(cooling mode)’, ‘short’ and ‘long’ added.VRT-checkbox is removed here.

Design pageMinor ticks on the x-axis now at every 2 ‘C, major ticks at every 10 ‘C.The double sliders for cooling and heating load are replaced by single sliders.

Results pageMajor changes in the lay-out [todo: legend is still missing].

Data filesIf downloading of data files fails, the application now shows a message indicating the reason.


BEFORE INSTALLATIONThere have been some changes in the database file. Remove the data files in [My documents]\Daikin\Seasonal Simulator before you start the application. This will force a download of the new version of the database.

Calculation speedThe issue with the calculation of the results when ‘Optimize for seasonal efficiency’ is checked, if fixed.


Test setting for power input at zero capacityThe power input at zero capacity can be changed through the advanced settings on the systempage.

VRT-logoThe application now contains a clickable VRT-logo (for now on two different pages). Clicking it will open a country-dependent web page.

Climate dataThe application now contains climate data for 10 cities in 9 different countries.

Series and modelsOnly models from two different series (RXYQ~T and RYYQ~T) are shown.

VRTThe VRT-checkboxes on the system page and the design page are bound to the same input parameters. The checkbox on the system page will be removed in the next version, the label text on the design page will be changed to ‘Optimize for seasonal efficiency’.

Application IconThe application now has an application icon.

Background ImageThe background image is changed into one supplied by Daikin.

Known issues Measurements for a number of models (like RXYCQ10A7Y1B) seems to be missing. Selecting such a model will give empty results.

Calculation of the results when ‘Optimize for seasonal efficiency’ takes very long, due to a very large amount of lookups of the same value in the database. These values will be cached in the next version.

Release notes acceptation version Seasonal Simulator 1.0.0.16Version date: april 26, 2013

Start-up sequence.The start-up sequence of the application is improved. Until this version, the disclaimer window would remain in existence (behind the main window) until the settings window was closed. Now it is removed from the screen right after the user clicks Agree or Don’t Agree.

Lay-out.The application now fits on a 1366 x 768 screen. The width of the settings window is increased so the rightmost part of the low/high electricity periods now fits.

Results page.The result page now shows some text with the graphs.

Building types.A set of building types is added to the application.

Proxy server caching.The web server now tells clients to disable content caching. Note however that content already cached by a proxy server will remain cached!

Location of the database files.Database files are for the time being downloaded to <My Documents>\Daikin\Seasonal Simulator. Rationale: the location used by version 1.0.0.15 is a bit hard to find, which could impede testing.

Release notes acceptation version Seasonal Simulator 1.0.0.15Version data: april 24, 2013

Database files are downloaded on demand by the application and placed in the data directory for click once applications (somewhere below AppData\Local\Apps\2.0\Data\....).The biggest database (Daikin.db, 17 MB) is downloaded after the user accepts the disclaimer.

Climate data are organized in one database per location, and are fetched when the user selects a location.

For the time being all cities use the climate data of Strassbourg, France.

The settings window shows a check box (on the about-tab) that allows you to switch web bulb temperature conversion on or off.

Product families, application types, series and models are fetched from Daikin.db. The previous version showed some sample data. Remark: please check if the right series names were reverse engineered from the model names.