Retrotec Blower Door User Manual download pdf (Page 5)

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4.15.1. Air Leakage at 50 Pascal .................................................................................................... 45

4.15.2. Air Changes per hour at 50 Pa - ACH50 ............................................................................ 45

4.15.3. Equivalent Leakage Area - EqLA 10 ................................................................................... 45

4.15.4. Effective Leakage Area - EfLA 4 ......................................................................................... 45

4.16 Results from Multi-Point Procedure .......................................................................................... 45

5. Avoid Common Sources of Error ................................................................. 46

5.1 Wrong Range Configuration or Device ...................................................................................... 46

5.2 No Reference Tube when Pressurizing ...................................................................................... 46

5.3 Incorrect @ Pressure usage ....................................................................................................... 46

5.4 Choose the Appropriate Test Direction ..................................................................................... 46

5.5 Minimize effects of upstream Air Flow conditions .................................................................... 46

5.6 Considerations when operating with high backpressure .......................................................... 47

6. Maintain system for optimum operation .................................................... 47

6.1 Check motor and fan blade position ......................................................................................... 50

6.2 Check for Flow Sensor leaks ...................................................................................................... 50

6.3 Perform a field verification monthly ......................................................................................... 50

7. Power to run the fan and gauge ................................................................. 52

7.1 Status lights indicate power and control connections are ready to go ..................................... 52

7.2 Using the Fan with Mains Power ............................................................................................... 52

7.3 Using the Fan with a power generator ...................................................................................... 52

7.4 Recommended Generators ....................................................................................................... 53

7.4.1. Honda Generator EU2000 (120V, 2000W, 67 lbs) ............................................................ 53

7.4.2. GENYX G3000HI (230V, 3000W) generator ..................................................................... 54

7.5 Portable Power Supplies for DucTester ..................................................................................... 54

7.5.1. Black and Decker Electromate 400 Model VEC026BD ...................................................... 54

8. Fan Troubleshooting ................................................................................... 55

8.1 Retrotec 2000 series 120 Volt AC motors overheat and shut off ............................................. 55

8.2 3300 High Power Fan will not control smoothly ....................................................................... 55

8.3 3300 Fan will not start ............................................................................................................... 56

8.4 Power supply interior status light fault codes ........................................................................... 57

Appendix A: Calculate Airflow Manually .......................................................... 59

Appendix B: Find correct CFM at particular fan pressure .................................. 60

Appendix C: Find Door Fan System Part Numbers ............................................. 68

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Retrotec Blower Door User Manual Page 5