Retrotec DucTester 341 Manual de usuario Pagina 69
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©Retrotec Inc. 2014
Appendix B: Flow Conversion Tables
Flow Conversion Table for Duct Test Pressure of 25 Pa
Table 9: Flow in CFM for various fan pressures, Retrotec Model 300 Fans, Duct Test Pressure: 25 Pa (relative to outdoors)
Flow AWAY or TOWARDS operator, both green and yellow tubes connected.
Range
Range
Fan Pressure (Pa)
Open
74
47
29
Fan Pressure (Pa)
Open
74
47
29
10
91.3
---
---
3.8
96
292.7
69.2
28.9
11.7
12
100.3
---
---
4.1
98
295.9
69.9
29.2
11.8
14
108.6
---
---
4.5
100
299.0
70.6
29.5
11.9
16
116.3
---
---
4.8
105
302.0
71.3
29.8
12.0
18
123.6
---
---
5.1
110
305.1
72.0
30.1
12.2
20
130.5
---
---
5.3
115
308.1
72.7
30.4
12.3
22
137.1
---
---
5.6
120
311.0
73.4
30.7
12.4
24
143.4
---
---
5.8
125
314.0
74.1
31.0
12.5
26
149.4
---
15.1
6.1
130
316.9
74.7
31.3
12.6
28
155.2
---
15.6
6.3
135
319.8
75.4
31.5
12.7
30
160.8
---
16.2
6.5
140
322.7
76.1
31.8
12.8
32
166.2
---
16.7
6.7
145
325.6
76.7
32.1
12.9
34
171.5
---
17.2
7.0
150
328.4
77.4
32.4
13.1
36
176.6
---
17.7
7.2
155
331.2
78.0
32.6
13.2
38
181.6
---
18.2
7.3
160
334.0
78.6
32.9
13.3
40
186.5
44.6
18.7
7.5
165
336.7
79.3
33.2
13.4
42
191.2
45.7
19.1
7.7
170
339.5
79.9
33.4
13.5
44
195.9
46.8
19.6
7.9
175
342.2
80.5
33.7
13.6
46
200.4
47.8
20.0
8.1
180
344.9
81.1
34.0
13.7
48
204.9
48.9
20.5
8.3
185
347.6
81.8
34.2
13.8
50
209.2
49.9
20.9
8.4
190
350.2
82.4
34.5
13.9
52
213.5
50.9
21.3
8.6
195
352.9
83.0
34.7
14.0
54
217.7
51.8
21.7
8.8
300
355.5
83.6
35.0
14.1
56
221.8
52.8
22.1
8.9
205
358.1
84.2
35.2
14.2
58
225.8
53.7
22.5
9.1
210
360.7
84.8
35.5
14.3
60
229.8
54.7
22.9
9.2
215
363.3
85.4
35.7
14.4
62
233.7
55.6
23.2
9.4
220
365.8
85.9
36.0
14.5
64
237.6
56.5
23.6
9.5
225
368.4
86.5
36.2
14.6
66
241.4
57.3
24.0
9.7
230
370.9
87.1
36.5
14.7
68
245.1
58.2
24.3
9.8
235
373.4
87.7
36.7
14.8
70
248.8
59.0
24.7
10.0
240
375.9
88.2
36.9
14.9
72
252.4
59.9
25.1
10.1
245
378.4
88.8
37.2
15.0
74
256.0
60.7
25.4
10.3
250
380.8
89.4
37.4
15.1
76
259.6
61.5
25.7
10.4
255
383.3
89.9
37.7
15.2
78
263.0
62.3
26.1
10.5
260
385.7
90.5
37.9
15.3
80
266.5
63.1
26.4
10.7
265
388.1
91.0
38.1
15.4
82
269.9
63.9
26.7
10.8
270
390.5
91.6
38.4
15.5
84
273.3
64.7
27.1
10.9
275
392.9
92.1
38.6
15.5
86
276.6
65.5
27.4
11.1
280
395.3
92.7
38.8
15.6
88
279.9
66.2
27.7
11.2
285
397.6
93.2
39.0
15.7
90
283.2
67.0
28.0
11.3
290
400.0
93.8
39.3
15.8
92
286.4
67.7
28.3
11.4
295
402.3
94.3
39.5
15.9
94
289.6
68.4
28.6
11.6
300
404.6
94.8
39.7
16.0
- DucTester Operation Manual 1
- Page 2 of 83 2
- Page 3 of 83 3
- Page 4 of 83 4
- Page 5 of 83 5
- Page 6 of 83 6
- Page 7 of 83 7
- Page 8 of 83 8
- Page 9 of 83 9
- 1. Why measure Duct Leakage? 10
- Program/Region 11
- Units/Test 11
- Pressure 11
- Leakage requirement 11
- Page 14 of 83 14
- ©Retrotec Inc. 2014 14
- Page 15 of 83 15
- Page 16 of 83 16
- 5. Model 341 DucTesters 17
- 5.1.1. Range Configurations 18
- 5.2 Digital Gauge 20
- 5.3 Flex Duct 21
- Page 22 of 83 22
- 6.2 Charge the gauge 23
- Page 24 of 83 24
- Flat faces down 26
- [Stop] to stop the fan 27
- Optional Flow 29
- Hood connector 29
- Page 30 of 83 30
- Optional Quick 31
- Connect Collar 31
- Page 32 of 83 32
- [@] button 35
- 8.1 Total Duct Leakage 36
- Page 38 of 83 38
- Page 39 of 83 39
- Page 42 of 83 42
- Page 43 of 83 43
- Before leaving the house 44
- Savings 45
- Page 46 of 83 46
- 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
- Page 50 of 83 50
- Page 51 of 83 51
- Page 52 of 83 52
- 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
- Page 54 of 83 54
- 12.1 For Code compliance 55
- Page 56 of 83 56
- Page 57 of 83 57
- 12.9 Other methods 58
- 13.2 Methodology 59
- Average Operating 60
- Pressure (Pa) 60
- Multiplier for 60
- Page 61 of 83 61
- Page 62 of 83 62
- 14.1 Field Check the gauge 63
- Page 64 of 83 64
- 15. Avoid common mistakes 65
- Page 66 of 83 66
- Dimensions 67
- Pressure readings 68
- Page 70 of 83 70
- Cannot Reach 25 Pa Factors 72
- Cannot Reach 50 Pa Factors 73
- Page 75 of 83 75
- Page 76 of 83 76
- Generators 78
- Portable Power Supplies 78
- Page 81 of 83 81
- Glossary 82
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