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©Retrotec Inc. 2012

5.5 Performing an NFPA 2001 Enclosure Integrity Test (single

point test as per 2008 edition)

For an Enclosure Integrity test to comply with the NFPA 2001’s Standard on Clean Agent Fire

Extinguishing Systems (2008 edition), Door Fan tests must be performed at four distinct points: two

target pressures while depressurizing the enclosure, and two target pressures while pressurizing the

enclosure.

Target pressures required for NPFA Enclosure Integrity tests are:

Test direction

Target Pressure required for NFPA

(“PrA”)

Deressurization

-10 Pa

-50 Pa

Pressurization

+10 Pa

+50 Pa

The following step-by-step instructions can be followed to test enclosure integrity in accordance to

NFPA 2001:

1. Set up your Door Fan system according to the “Door Fan Operation” Quick Guide.

2. Enter test conditions and dimensions into Retrotec’s CA2001 software

3. Press [Mode] repeatedly until “CFM” appears beside the Mode label on the DM-2

4. Press [Time Avg] repeatedly until “4s” appears beside the Time label on the DM-2

5. Press [Auto Zero] until “On” appears beneath the Zero label on the DM-2

6. Press [Device] until the name of the fan you are using appears beside the Device label on the

DM-2

7. Press [Range] until the installed range appears beside the Range Config label on the DM-2

8. Press [Baseline], wait for 30 seconds, then press [Enter]

9. Press [Set Pressure] and enter one of the pressures listed in the table above

10. Achieve the first target pressure (using one of the two methods below), and enter the actual

pressure read from the DM-2 gauge into CA2001

11. Repeat steps 8-10 for the remaining Target Pressures from the table above.

12. If retention time is less than 10 minutes, use smoke from a Retrotec Air Current Tester to

determine where leaks are, then seal the leaks.

13. Repeat test until retention time is greater than 10 minutes

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Retrotec DM-2A Manual de usuario Pagina 39