Retrotec DucTester 200 Series Residential Applications Instrukcja Użytkownika Pobierz pdf (Strona 3)

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2.3 Problems from duct leakage: ................................................................................ 19

3. Locating Duct Leaks .................................................................................... 20

3.1 Types of duct leakage tests ................................................................................... 20

3.2 What is duct leakage to the outdoors? .................................................................. 20

3.3 What is duct leakage to the indoors? .................................................................... 20

3.4 How much duct leakage is acceptable under existing Codes? ................................ 21

3.5 Set up your DucTester for duct leakage testing ..................................................... 24

3.6 Unpack, connect the gauge to the DucTester ........................................................ 24

3.6.1. Charge the gauge .................................................................................................. 24

3.6.2. Make all connections on the gauge and fan ......................................................... 25

3.7 Blue Tube location matters when testing leaky ducts ............................................ 26

3.8 Connect the DucTester to the Duct System ........................................................... 27

3.8.1. Connect the Flex Duct to return register .............................................................. 27

3.8.2. OR Connect the Flex Duct to the air handler cabinet ........................................... 28

3.8.3. OR Connect the Flex Duct to a ceiling level return using a Flow Hood ................ 28

3.9 Prepare the Duct System for a test ........................................................................ 28

3.9.1. Before beginning the duct leakage test ................................................................ 28

3.10 Install Range Ring on fan....................................................................................... 29

3.11 Select a test direction ........................................................................................... 30

3.11.1. Setting up for depressurization ............................................................................ 30

3.11.2. Setting up for pressurization ................................................................................ 30

4. Set up the gauge to display Duct Leakage Results ....................................... 31

4.1 Mode setup for duct testing in the US ................................................................... 31

4.2 Mode Setup for various standards around the world ............................................. 32

4.3 Setting up the DM32 gauge for Duct Testing ......................................................... 33

4.4 Setting up and using the DM-2 gauge for Duct testing ........................................... 33

5. Conduct the Duct Leakage tests .................................................................. 35

5.1 Total Duct Leakage ............................................................................................... 35

5.2 Duct Leakage to Outdoors with 2 gauges and 2 fans .............................................. 36

5.2.1. Method #1: Set both duct and house to -25 Pa (or 25 Pa) .................................. 36

5.2.2. Method #2: Set duct to house pressure to 0 Pa (using DucTester gauge) .......... 37

5.3 Duct Leakage to Outdoors with 1 gauge and 2 fans ............................................... 38

5.4 Combined Total Duct Leakage and Duct Leakage to Outdoors Method .................. 41

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Retrotec DucTester 200 Series Residential Applications Instrukcja Użytkownika Strona 3