Page 6 of 89
Ā©Retrotec 2017
10.9.1. With Office 2007: .................................................................................................. 55
10.9.2. With Office 2010 ................................................................................................... 55
11. Find air leaks in the ducts ........................................................................ 56
11.1 Using a smoke puffer ............................................................................................ 56
11.2 Using theatrical smoke ......................................................................................... 56
11.3 Using an infrared camera ...................................................................................... 56
11.4 Using a wet hand .................................................................................................. 56
11.5 Using a Pressure Pan............................................................................................. 56
12. Measure the Air Handler system flow ..................................................... 58
12.1 For Code compliance ............................................................................................ 58
12.2 Why measure the Air Handler system flow? .......................................................... 58
12.3 Measure with a DucTester as a powered flow hood on the return ......................... 58
12.4 Measure air handler flow using a blower door ...................................................... 59
12.4.1. Supply plenum pressure matching method .......................................................... 59
12.4.2. Set pressure in front of return register to zero method or using your Blower Door
as a powered flow hood ....................................................................................................... 61
12.5 Measure large exhaust and intake flow rates ........................................................ 62
12.6 Measure with a DucTester on the air handler cabinet ........................................... 63
12.7 Measure with a gauge and a flow grid ................................................................... 63
12.8 Measure using air handler blower curves .............................................................. 63
12.9 Measure using Hole Flow on the gauge ................................................................. 64
12.10 Measure with a Blower Door attached to the return or cabinet ......................... 64
12.11 Other methods ................................................................................................. 64
13. Estimate HVAC system energy loss from ducts ........................................ 65
13.1 Duct Air Leakage Measurements ........................................................................... 65
13.2 Methodology ........................................................................................................ 65
14. Field Check the DucTester to find out what is not working ...................... 69
14.1 Field Check the gauge ........................................................................................... 69
14.2 Field Check the DucTester as a system .................................................................. 69
15. Avoid common mistakes ......................................................................... 70
16. Create a Blower Door with a DucTester fan ............................................. 72
16.1 Use a DucTester to test tight enclosures................................................................ 72
16.2 Blower Door systems for testing tight enclosures .................................................. 72
To Next Page
Loading...