Retrotec DucTester 341 Bedienungsanleitung Seite 6
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©Retrotec Inc. 2014
10.9.1. With Office 2007: .................................................................................................. 52
10.9.2. With Office 2010 ................................................................................................... 52
11. Find air leaks in the ducts ........................................................................ 53
11.1 Using a smoke puffer ............................................................................................ 53
11.2 Using theatrical smoke ......................................................................................... 53
11.3 Using an infrared camera ...................................................................................... 53
11.4 Using a wet hand .................................................................................................. 53
11.5 Using a Pressure Pan............................................................................................. 53
12. Measure the Air Handler system flow ..................................................... 55
12.1 For Code compliance ............................................................................................ 55
12.2 Why measure the Air Handler system flow? .......................................................... 55
12.3 Measure with a DucTester as a powered flow hood on the return ......................... 55
12.4 Measure with a DucTester on the air handler cabinet ........................................... 57
12.5 Measure with a gauge and a flow grid ................................................................... 57
12.6 Measure using air handler blower curves .............................................................. 57
12.7 Measure using Hole Flow on the gauge ................................................................. 58
12.8 Measure with a Blower Door attached to the return or cabinet ............................. 58
12.9 Other methods ..................................................................................................... 58
13. Estimate HVAC system energy loss from ducts ........................................ 59
13.1 Duct Air Leakage Measurements ........................................................................... 59
13.2 Methodology ........................................................................................................ 59
14. Field Check the DucTester to find out what is not working ...................... 63
14.1 Field Check the gauge ........................................................................................... 63
14.2 Field Check the DucTester as a system .................................................................. 63
15. Avoid common mistakes ......................................................................... 65
16. Create a Blower Door with a DucTester fan ............................................. 66
16.1 Use a DucTester to test tight enclosures................................................................ 66
16.2 Blower Door systems for testing tight enclosures .................................................. 66
Appendix A: Calculate Air Flow based on Channel B Fan Pressure readings ...... 68
Appendix B: Flow Conversion Tables ................................................................ 69
Flow Conversion Table for Duct Test Pressure of 25 Pa ..................................................... 69
Appendix C: Calculate flow if required test pressure cannot be reached .......... 70
- DucTester Operation Manual 1
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- 1. Why measure Duct Leakage? 10
- Program/Region 11
- Units/Test 11
- Pressure 11
- Leakage requirement 11
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- ©Retrotec Inc. 2014 14
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- 5. Model 341 DucTesters 17
- 5.1.1. Range Configurations 18
- 5.2 Digital Gauge 20
- 5.3 Flex Duct 21
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- 6.2 Charge the gauge 23
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- Flat faces down 26
- [Stop] to stop the fan 27
- Optional Flow 29
- Hood connector 29
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- Optional Quick 31
- Connect Collar 31
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- [@] button 35
- 8.1 Total Duct Leakage 36
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- Before leaving the house 44
- Savings 45
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- 10.2.1. Imperial units 47
- 10.2.2. Metric units 47
- 10.3 Choose Duct Test type 48
- 10.6.3. Baseline pressure 49
- ] menu allows for this 49
- 10.7.1. Duct Pressure 49
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- 11.1 Using a smoke puffer 53
- 11.2 Using theatrical smoke 53
- 11.4 Using a wet hand 53
- 11.5 Using a Pressure Pan 53
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- 12.1 For Code compliance 55
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- 12.9 Other methods 58
- 13.2 Methodology 59
- Average Operating 60
- Pressure (Pa) 60
- Multiplier for 60
- Page 61 of 83 61
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- 14.1 Field Check the gauge 63
- Page 64 of 83 64
- 15. Avoid common mistakes 65
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- Dimensions 67
- Pressure readings 68
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- Cannot Reach 25 Pa Factors 72
- Cannot Reach 50 Pa Factors 73
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- Generators 78
- Portable Power Supplies 78
- Page 81 of 83 81
- Glossary 82
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