Laserfiche WebLink
�r,,,,,,c � a��6 � o I5�4r�, <br /> � DUCT LEAKAGE TEST <br /> Building Knowledge, Inc. <br /> PO Box 1376 <br /> Burnsville, MN 55337 <br /> Phone:952-944-5605 <br /> Date of Test:4/24/17 Technician: ' <br /> Test File:2040 Spates Avenue_Duct Test_24APRILI7 <br /> Customer: Midland Heating&Air uilding Address: 2040 Spates Avenue <br /> 413 West 60th Street Orono, MN <br /> Minneapolis, MN 55419 <br /> Phone:612-869-3213 <br /> Fax: <br /> Test Results <br /> 1. Measured Duct Leakage: 36.0 CFM/6.8 sq. in.(+/-0.0%) <br /> 2. Duct Leakage as a Percent of System Airflow: 9.0% <br /> 3. Duct Leakage as a Percent of Building Floor Area: 3.6% <br /> 4. Leakage Split: Supply Side: 27.0 CFM/5.1 sq. in. <br /> Return Side: 9.0 CFM/1.7 sq.in. <br /> 5. Duct Leakage Curve: Flow Coefficient(C): 5.2 <br /> Exponent(n): 0.600(Assumed) <br /> 6 Test Settings: Test Mode: Depressurization <br /> Test Pressure: 25.0 Pa <br /> Equipment: Series B Minneapolis Duct Blaster <br /> Test Type: Total Leakage <br /> (Duct Blaster Only) <br /> Estimated Efficiency Loss from Duct Leakage: <br /> 1. Annual System Efficiency Loss: 19.9% <br /> Building and System Parameters: <br /> Floor Area: 991 sq.ft. Average Supply Operating Pressure: 373 Pa <br /> System Airflow: 400 CFM Average Return Operating Pressure: 373 Pa <br /> Supply Leakage Split: 75% Supply Leakage Penalty: 1.0 <br /> Return Leakage Split: 25% Return Leakage Penalty: 0.5 <br /> Percentage of Measured Leakage Connected to Outside: 50%(18.0 CFM) <br />