Retrotec DucTester 200 Series Residential Applications User Manual download pdf (Page 60)

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DucTester 200 Series Residential Applications
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Page 60 of 91

©Retrotec Inc. 2015

Average Operating

Pressure (Pa)

Multiplier for

CFM25

1.42

1.52

1.60

1.69

1.77

1.85

1.93

2.01

2.08

2.16

2.23

100

2.30

105

2.37

110

2.43

115

2.50

120

2.56

125

2.63

130

2.69

135

2.75

140

2.81

145

2.87

150

2.93

155

2.99

160

3.05

165

3.10

170

3.16

175

3.21

180

3.27

185

3.32

190

3.38

195

3.43

200

3.48

When possible, use actual operating conditions to determine the best multiplier to use from the table

above.

Calculate a loss factor for supply and return leaks

Supply Loss Factor = (SLS x SLP x SPM)

Where: SLS is Supply Leakage Split (default 0.5)

SLP is Supply Leakage Penalty (default 1.0)

SPM is Supply Pressure Multiplier (default 1.0)

Supply Loss Factor = 0.5 * 1.0 * 1.0

= 0.5

1 2 ... 55 56 57 58 59 60 61 62 63 64 65 ... 90 91

Model 200 1
Residential Applications 1
Table of Contents 2
Page 3 of 91 3
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1.2 Digital Gauge 12
1.3 Flex Duct 12
Description 15
2.1 Energy loss 19
2.2 Duct sealing saves money 19
3. Locating Duct Leaks 20
Program/Region 21
Units/Test 21
Pressure 21
Leakage requirement 21
Page 24 of 91 24
[Exit] to stop the fan 26
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Page 34 of 91 34
5.1 Total Duct Leakage 35
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Before leaving the house 43
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7.3 Choose Duct Test type 47
Page 48 of 91 48
[Exit] on the gauge before 49
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Page 52 of 91 52
8.1 Using a smoke puffer 53
8.2 Using theatrical smoke 53
8.3 Using an infrared camera 53
8.4 Using a wet hand 53
8.5 Using a Pressure Pan 53
Page 54 of 91 54
9.1 For Code compliance 55
Page 56 of 91 56
[@ Pressure] key until the 57
9.9 Other methods 58
10.2 Methodology 59
Average Operating 60
Pressure (Pa) 60
Multiplier for 60
Page 61 of 91 61
Page 62 of 91 62
11.1 Field Check the gauge 63
11.2 Field Check the tubes 63
Page 64 of 91 64
Water in tube 64
Pinched tube 64
Page 65 of 91 65
12. Avoid common mistakes 66
Page 67 of 91 67
Dimensions 68
With Extender Kit 68
Page 73 of 91 73
Page 74 of 91 74
Cannot Reach 25 Pa Factors 76
Cannot Reach 50 Pa Factors 77
Fan does not run 79
Checking the DucTester flows 79
Page 80 of 91 80
Page 81 of 91 81
Page 84 of 91 84
Generators 86
Portable Power Supplies 86
Page 89 of 91 89
Glossary 90

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Retrotec DucTester 200 Series Residential Applications User Manual Page 60

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