Retrotec DucTester 200 Series Residential Applications - Manual (Page 5)

Page 5 of 91
©Retrotec Inc. 2015
7.9 Save the Duct Leakage Test Report as a PDF file .................................................... 52
7.9.1. With Office 2007: .................................................................................................. 52
7.9.2. With Office 2010 ................................................................................................... 52
8. Find air leaks in the ducts ........................................................................... 53
8.1 Using a smoke puffer ............................................................................................ 53
8.2 Using theatrical smoke ......................................................................................... 53
8.3 Using an infrared camera ...................................................................................... 53
8.4 Using a wet hand .................................................................................................. 53
8.5 Using a Pressure Pan............................................................................................. 53
9. Measure the Air Handler system flow ........................................................ 55
9.1 For Code compliance ............................................................................................ 55
9.2 Why measure the Air Handler system flow? .......................................................... 55
9.3 Measure with a DucTester as a powered flow hood on the return ......................... 55
9.4 Measure with a DucTester on the air handler cabinet ........................................... 56
9.5 Measure with a gauge and a flow grid ................................................................... 56
9.6 Measure using air handler blower curves .............................................................. 57
9.7 Measure using Hole Flow on the gauge ................................................................. 57
9.8 Measure with a Blower Door attached to the return or cabinet ............................. 57
9.9 Other methods ..................................................................................................... 58
10. Estimate HVAC system energy loss from ducts ........................................ 59
10.1 Duct Air Leakage Measurements ........................................................................... 59
10.2 Methodology ........................................................................................................ 59
11. Field Check the DucTester to find out what is not working ...................... 63
11.1 Field Check the gauge ........................................................................................... 63
11.2 Field Check the tubes ............................................................................................ 63
11.3 Field Check the DucTester as a system .................................................................. 64
12. Avoid common mistakes ......................................................................... 66
13. Create a Blower Door with a DucTester fan ............................................. 67
13.1 Use a DucTester to test tight enclosures................................................................ 67
13.2 Blower Door System (tight enclosures) details ...................................................... 68
Appendix A: Calculate Air Flow based on Pressure readings ............................. 69
Appendix B: Flow Conversion Tables ................................................................ 71