
ALWAYS DOWNLOAD THE LATEST VERSION OF REVIT CONTENT BEFORE USING THEM IN A NEW PROJECT.

This change history file can be used to help you determine whether or not the changes
in the latest version available warrant the effort to update a family that is already
being used in an existing project.



Family File Dates: 2010 September 30
  - Added families for the VRV-WIII water cooled condensing units
  - Added 8-ton Branch Selector size for use with water cooled condensing units
  - Added shared parameters to all condensing unit families (only as appropriate), some for conformance with AHRI Standard 1230:
    - Integrated Energy Efficiency Ratio  
    - Combination Ratio 
    - Simultaneous Cooling and Heating Efficiency 
    - High Temperature Coefficient of Performance 
    - Low Temperature Coefficient of Performance 
    - High Temperature Heating Standard Rating Capacity
    - Low Temperature Heating Standard Rating Capacity
    - Actual Vertical Refrigerant Pipe Length Above Unit 
    - Actual Vertical Refrigerant Pipe Length Below Unit 
    - Maximum Vertical Refrigerant Pipe Length Above Unit 
    - Maximum Vertical Refrigerant Pipe Length Below Unit 
  - Modified condensing unit schedule to use some of the new shared parmaeters
  - Changed connector settings on all families to more accurately reflect the bidirectional nature of refrigerant flow
  - Removed refrigerant flow parameters until Revit supports Mass/Time units of measure
  - Removed excess lines from some fan coil families



Family File Dates: 2010 August 24
  - Added to the type names on REFNET Headers to make them unique



Family File Dates: 2010 July 30
  - Added more condensing unit sizes that are now available
  - Reduced nested family usage to make smaller, lighter condensing unit families
  - Assembly Code values are now compliant with MasterFormat 2010 (can be helpful for e-SPECS users)
  - Updated condenser refrigerant suction gas connection locations to conform to product changes (small movements)
  - Added a formula to automatically calculate refrigerant charge on dual condensing units



Family File Dates: 2010 June 11

  - Changed model name as requested by Daikin to include an "A" in name between "series" and "voltage denoters (i.e. RXYQ72PTJU > RXYQ72PATJ)
  - Changed model name as requested by Daikin to eliminate final letter (U or N depending on voltage) from original model name (i.e. RXYQ72PTJU > RXYQ72PATJ)
  - Eliminated 18-Ton (216) and 20-Ton (240) systems from all line ups
  - Downgraded nominal 10-Ton (RXYQ120PTJU) Heat Pump Condensing Units to nominal 9-Ton Heat Condensing Units (RXYQ108PATJ)
  - Changed combination for 16-Ton system from 10-ton + 6-ton (RXYQ120PTJU + RXYQ72PTJU) to 8-Ton + 8-Ton (RXYQ96PATJ + RXYQ96PATJ)
  - Changed 12-ton (RXYQ144PTJU) Single Condensing Unit Model to 6-ton + 6-ton (RXYQ72PTJU + RXYQ72PTJU) Combination Condensing Unit Model in type catalog and family
  - Changed reference plane for dimensions where appropriate and adjusted family types and type catalogs to reflect that change
  - Changed pipe connector diameters where appropriate due to catalog changes
  - Changed pipe connector protrusion referance plane to be independant from power connection reference plane where necessary
  - Deleted power connection protrusion and pipe connection protrusion parameters from family
  - Added columns to Type Catalog to include all non-formula-locked parameters controlling any visible geometery
  - Deleted columns from Type Catalog for formula-locked parameters controlling visible geometery
  - Added clearance volumes and their parameters to all families



Family File Dates: 2010 May 21

  - Upgraded to Revit 2010 format.  Changes include:
    - OmniClass value added
    - Defined exactly one type in the family, to help indicated if the Type Catalog wasn’t used properly:
            "INVALID TYPE - Use Load Family and Type Catalog Instead"
    - Clearance volume changed to green (easier to see in Revit interference checks)
    - Set materials "Render Appearance" settings to create better images when the model is rendered
    - Material names better conform to the Revit Model Content Style Guide
    - “Product Page URL” parameter added for conformance to the Revit Model Content Style Guide
    - "URL" parameter value conforms better to Revit Model Content Style Guide 
    - To reduce load on Revit, web link parameters were changed to Type parameters
    - To improve usage for system design purposes, parameters such as those for capacities, temperatures, power values and others were changed to Instance parameters

