EKO_Q27_DuctSystem Version 7.1.1

For each duct system, confirm that the system types, field test status, associated heating/cooling equipment, square feet served, # of returns, duct areas, duct insulation R-values, locations and % areas which are entered into the software correspond with plans and/or field data collected by the Rater/RFI for the actual condition of the rated home.

• Some duct locations are not visible at time of field QA. Verify that percentages seem reasonable for conditions found.
• Using rating software to estimate surface area is appropriate for most ducted systems. Any entered duct surface areas that deviate significantly from a software estimate (e.g. the small surface area of high-velocity ducts) should be documented in notes and/or photographs.

SCORING

• Satisfactory: No errors in Duct System modeling
• 1: one to two minor errors in Duct System modeling (listed below) (this is per modeled system)
• 2: three to four minor errors (listed below) in Duct System modeling OR one to two major errors in Duct System modeling (this is per modeled system)
• 3: Incorrect number of Duct Systems OR five or more minor errors (listed below) OR three or more major errors in Duct System modeling (listed below) (this is per modeled system)

Minor Duct Systems Modeling Errors:

• Duct System Square Feet Served off 2% to 5%
• '#' of Return Grills off by 1
• Supply and Return Duct Area off by 5% to 10%
• Duct Location or Supply/Return percentages listed as correct location but incorrect condition (Attic, well vented vs Attic, well vented, under insulation)

Major Duct Systems Modeling Errors:

• Incorrect field test status identified (Untested, Tested, Sampled)
• Incorrect identification of which Heating and Cooling Equipment Served by Duct System
• Incorrect Supply or Return Duct R-Value Identified
• Duct System Square Feet Served off by greater than 5%
• '#' of Return Grills off by 2 or more
• Supply and Return Duct Area off by greater than 10%
• Duct Location or Supply/Return percentages listed as incorrect location (Attic, well vented vs Garage)