Retrotec DucTester 200 Series Residential Applications - Manual (Page 4)

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©Retrotec Inc. 2015
5.5 If no Results are displayed (TOO LOW or ---) .......................................................... 41
5.6 Cannot achieve test pressure ................................................................................ 42
6. Restore the house to pre-test conditions after testing is complete ............. 43
7. Create a Duct Leakage Test Report with Potential Energy Savings .............. 44
7.1 Get the Excel spreadsheet based software to run on your system ......................... 45
7.1.1. Enable Macros (with Office 2007) ........................................................................ 45
7.1.2. Enable Macros (with Office 2010) ........................................................................ 45
7.1.3. Showing/Hiding the Ribbon .................................................................................. 46
7.1.4. Enter test information and results into green cells .............................................. 46
7.2 Choose metric or imperial units for results ............................................................ 46
7.2.1. Imperial units ........................................................................................................ 46
7.2.2. Metric units ........................................................................................................... 46
7.3 Choose Duct Test type .......................................................................................... 47
7.4 Enter the Target test pressure ............................................................................... 47
7.5 Enter date the test was carried out ....................................................................... 47
7.6 Enter specific parameters for the conditions of this test ........................................ 47
7.6.1. Conditioned Floor Area ......................................................................................... 47
7.6.2. Air Handler Flow ................................................................................................... 47
7.6.3. Leakage Exponent, n ............................................................................................. 48
7.6.4. Baseline pressure .................................................................................................. 48
7.6.5. Enter whether pressurizing or depressurizing (Test direction) ............................ 48
7.7 Enter readings from this test ................................................................................. 49
7.7.1. Duct Pressure ........................................................................................................ 49
7.7.2. Enter “Flow” directly or enter Range Configuration and Fan Pressure ................ 49
7.7.3. Convert “Flow/Area” data so it can be entered into spreadsheet ....................... 50
7.8 Spreadsheet will calculate Cost of Duct Leakage .................................................... 50
7.8.1. % of Duct Leakage to Outdoors ............................................................................ 51
7.8.2. Annual Cooling Cost .............................................................................................. 51
7.8.3. Annual Heating Cost ............................................................................................. 51
7.8.4. Average Duct Operating Pressure ......................................................................... 51
7.8.5. Leakage Split ......................................................................................................... 51
7.8.6. Supply Leakage Penalty ........................................................................................ 51
7.8.7. Return Leakage Penalty ........................................................................................ 52