Retrotec DU200 DucTester Testing Procedures to meet EnergyS Manuale Utente Scaricare il pdf (Pagina 3)

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4.3 Envelope leakage test to meet ENERGY STAR standards

1. Remove Grill Mask and DucTester.

2. Connect the Door Fan to blow outdoors.

3. On the DM-2:

a. Press [Mode] until “Air Chg”

appears.

If unavailable, see Page 4.

b. Press [Device] to get “Retrotec 1000”.

c. Press [Range Config] to get "B".

4. Press [Enter Volume], enter volume in

cubic feet, then press [Enter] to lock in

the volume for each house.

5. Press [Set Pressure] [50] [Enter].

6. Press the [@] key until “@50 Pa” is

displayed.

7. Record the envelope leakage in air

changes at 50 Pa.

Total building

leakage under

depressurization is

the most common

test direction for

residential testing.

Connect green

tube on some

models.

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Retrotec DU200 DucTester Testing Procedures to meet EnergyS Manuale Utente Pagina 3