Retrotec DucTester 341 Manual do Utilizador descarregar pdf (Página 32)

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©Retrotec Inc. 2014

6.9.2. Blow air out of the ducts for pressurization

The only advantage of pressurizing is that it makes changing Range Rings on the fan easier. If a

pressurization test is needed, simply install the Flex Duct on the outlet side of the fan.

Figure 23: Install Flex Duct over the fan exhaust, for pressurization. Tighten the strap.

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DucTester Operation Manual 1
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1. Why measure Duct Leakage? 10
Program/Region 11
Units/Test 11
Pressure 11
Leakage requirement 11
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5. Model 341 DucTesters 17
5.1.1. Range Configurations 18
5.2 Digital Gauge 20
5.3 Flex Duct 21
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6.2 Charge the gauge 23
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Flat faces down 26
[Stop] to stop the fan 27
Optional Flow 29
Hood connector 29
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Optional Quick 31
Connect Collar 31
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[@] button 35
8.1 Total Duct Leakage 36
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Before leaving the house 44
Savings 45
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10.2.1. Imperial units 47
10.2.2. Metric units 47
10.3 Choose Duct Test type 48
10.6.3. Baseline pressure 49
] menu allows for this 49
10.7.1. Duct Pressure 49
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11.1 Using a smoke puffer 53
11.2 Using theatrical smoke 53
11.4 Using a wet hand 53
11.5 Using a Pressure Pan 53
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12.1 For Code compliance 55
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12.9 Other methods 58
13.2 Methodology 59
Average Operating 60
Pressure (Pa) 60
Multiplier for 60
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14.1 Field Check the gauge 63
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15. Avoid common mistakes 65
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Dimensions 67
Pressure readings 68
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Cannot Reach 25 Pa Factors 72
Cannot Reach 50 Pa Factors 73
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Generators 78
Portable Power Supplies 78
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Glossary 82

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Retrotec DucTester 341 Manual do Utilizador Página 32

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