Retrotec DucTester 200 Series Residential Applications Manual de usuario descargar pdf (Pagina 62)

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©Retrotec Inc. 2015

CFM

multiplier for return = 1.22

CFM

multiplier for supply = 1.0 (default)

Leakage splits:

SLS = 200 CFM

/ 270 CFM

= 0.74

RLS = 70 CFM

/ 270 CFM

= 0.26

Loss Factors:

SLF = (0.74 x 1.0 x 1.22) = 0.9

RLF = (0.26 x 0.5 x 1.0) = 0.13

% HVAC System Loss =











= 20%

Annual cooling loss = 20% x $1300 = $260

Annual heating loss = 20% x $ 500 = $100

Annual capacity loss = 20% x 3 ton = 0.6 tons

Annual operating SEER = (1 – 20%) x 11 SEER = 8.8 SEER

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Model 200 1
Residential Applications 1
Table of Contents 2
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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
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[Exit] to stop the fan 26
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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
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[Exit] on the gauge before 49
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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
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[@ Pressure] key until the 57
9.9 Other methods 58
10.2 Methodology 59
Average Operating 60
Pressure (Pa) 60
Multiplier for 60
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11.1 Field Check the gauge 63
11.2 Field Check the tubes 63
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Water in tube 64
Pinched tube 64
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12. Avoid common mistakes 66
Page 67 of 91 67
Dimensions 68
With Extender Kit 68
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Cannot Reach 25 Pa Factors 76
Cannot Reach 50 Pa Factors 77
Fan does not run 79
Checking the DucTester flows 79
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Page 84 of 91 84
Generators 86
Portable Power Supplies 86
Page 89 of 91 89
Glossary 90

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