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©Retrotec 2017
Appendix A: Calculate Air Flow based on Channel B Fan Pressure readings ...... 74
Appendix B: Flow Conversion Tables ................................................................ 75
Flow Conversion Table for Duct Test Pressure of 25 Pa ..................................................... 75
Appendix C: Calculate flow if required test pressure cannot be reached .......... 76
Extrapolation Error for Flow if gauge “n” doesn’t match actual n ...................................... 77
Cannot Reach 25 Pa Factors ............................................................................................. 78
Cannot Reach 50 Pa Factors ............................................................................................. 79
Appendix D: Troubleshooting ........................................................................... 81
“--” appears on display: ................................................................................................... 81
Gauge “Flow” reading does not change? Turn off [@] ...................................................... 81
Fan does not run .............................................................................................................. 81
Checking the DucTester flows .......................................................................................... 81
Adjusting the fan Inlet Nozzle if is rubbing or debris needs to be removed from fan ......... 82
Appendix E: Using a generator for power ......................................................... 83
Generators ...................................................................................................................... 84
Honda Generator EU3000 (120V, 2000W, 67 lbs) .............................................................. 84
GENYX G3000HI (230V, 3000W) generator ....................................................................... 84
Portable Power Supplies .................................................................................................. 84
Black and Decker Electromate 400 Model VEC026BD ........................................................ 84
Appendix F: Duct-Test Recording Forms ........................................................... 85
Total Duct Leakage Test Form Test date: _______________/20____ ..................... 85
Total Duct Leakage Test Form (CA) Test date: _______________/20____ .............. 86
Glossary ............................................................................................................ 88
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