Retrotec recommends you take the maximum number of test points to decrease the uncertainty in your test.

Yes, you can change this default and take only 5 readings according to the Standard but your uncertainty will often be too high and you might have to retest.  Next, you might retest and find the result differs from the previous test by 10% or more making you lose confidence in the results. Retrotec defaults that include taking 10 test points and longer baselines will optimize your tests and give better results. 

You might save a few minutes by testing to the minimum allowed by the Standards but in the long run, your test results will be poor. Officials look at high uncertainties and poor repeatabilities between your tests and wrongly conclude your equipment is faulty but the truth is that your test method is faulty.  Please use our defaults as practical minimums and if anything take your tests over a longer time rather than shorter and your results will

Click the "Reset to Standard Default" button in the Advanced settings menu, to ensure default program parameters are used.

Our manufacturer's recommendation for calibration is as follows:

• Retrotec fans: Every 5 years.  
• DM-2 Manometer: Every 2 years  or if the Manometer fails a field check. 
• DM32 / DM32 WiFi Manometer: Every 5 years or if the Manometer fails a field check.

Please review the DM32 and DM-2 Manuals on how to perform a field check.  

This only covers our manufacturer recommendation.  The energy standards (EN13829, ASTM, ATTMA, USACE, etc...) that you are using for test results may have different calibration intervals.  Please consult the energy standards for the specific equipment calibration intervals.

Fan Pressure (flow pressure) is too low for the Range, which means you should change to a smaller more restrictive Range to increase fan pressure.
 

Currently none of the standards require independent or 3rd party testing.  Much of this responsibility is given to the AHJ who is supposed to ensure all codes are followed. The reality is few AHJ completely understand the standards and are easily persuaded by the installer that everything has been done correctly. Increasingly the role of ensuring the building is up to spec has been taken on by commissioning agents. Their job is to ensure that the entire building is up to spec and that includes the suppression system. The commissioning agent is hired by the owner to ensure the owner is getting what they paid for, which includes compliance with all building and NFPA codes.

We often get questions from AHJ or commissioning agents who are concerned about how the enclosure test was performed, and there is good reason for this. Half the enclosure integrity tests done in Europe and 60% of those performed in the US do NOT include a peak pressure evaluation. Peak pressure evaluation

500 Flow Chart

6000 flowchart

Yes you can print your results via the rCloud portal. Just login to the rCloud web portal, find your report and you can save your report as a PDF to be printed.

How and when should I compensate for leakage around the door panel?