Qei-20 class ii, Performance data, Qei-20ii – Greenheck Fan Mixed Flow Fans Belt and Direct Drive QEI-L User Manual

Page 29: Specification data

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29

Performance certified is for installation type B: Free inlet, Ducted outlet. Power rating (Bhp) does not include transmission losses. Performance ratings do not

include the effects of appurtenances (accessories).
The sound power level ratings shown are in decibels, referred to 10

-12

watts, calculated per AMCA Standard 301. Values shown are for inlet L

Wi

, L

Wi

A and outlet L

Wo

,

L

Wo

A sound power levels for installation type B: Free inlet, Ducted outlet. Ratings for inlet sound do not include the effects of duct end correction. Ratings for outlet

sound include the effects of duct end correction. The A-weighted sound power ratings shown have been calculated per AMCA Standard 301. The AMCA Certified
Ratings Seal applies to L

Wi

A and L

Wo

A values only.

Performance Data

Shaded values show where Class I fan selections are more efficient than Class II.

QEI-20 Class II

CFM

OV

STATIC PRESSURE (inches wg)

0.5

1

2

3

4

5

6

7

8

RPM

BHP

RPM

BHP

RPM

BHP

RPM

BHP

RPM

BHP

RPM

BHP

RPM

BHP

RPM

BHP

RPM

BHP

4500

1076

1002

0.74

1110

1.14

1319

2.05

1526

3.15

1719

4.38

5000

1196

1090

0.92

1189

1.34

1384

2.34

1570

3.44

1750

4.71

1920

6.10

5500

1315

1181

1.13

1271

1.58

1451

2.67

1615

3.75

1788

5.08

1951

6.51

2105

8.04

2246

9.65

6000

1435

1272

1.38

1355

1.86

1519

2.99

1679

4.19

1833

5.48

1986

6.95

2136

8.53

2277

10.2

2408

11.9

6500

1555

1364

1.66

1440

2.18

1589

3.32

1745

4.67

1882

5.94

2031

7.44

2170

9.05

2308

10.8

2439

12.6

7000

1674

1457

1.99

1529

2.54

1670

3.74

1813

5.18

1948

6.53

2075

7.96

2214

9.64

2342

11.4

2471

13.2

7500

1794

1551

2.36

1619

2.95

1751

4.20

1882

5.64

2015

7.18

2135

8.64

2258

10.3

2386

12.1

2505

13.9

8000

1913

1645

2.77

1710

3.40

1834

4.72

1953

6.14

2082

7.88

2201

9.40

2310

11.0

2430

12.8

8500

2033

1740

3.24

1801

3.91

1918

5.28

2033

6.77

2151

8.48

2268

10.2

2376

11.9

2477

13.5

9000

2153

1835

3.75

1893

4.48

2003

5.90

2115

7.45

2220

9.12

2336

11.1

2443

12.8

9500

2272

1930

4.33

1986

5.10

2092

6.59

2197

8.20

2297

9.89

2404

11.8

2510

13.8

10000

2392

2026

4.96

2079

5.78

2181

7.34

2280

9.00

2378

10.7

2474

12.6

Inlet Sound Power, L

Wi

[dB ref 10

-12

watts]

Outlet Sound Power, L

Wo

[dB ref 10

-12

watts]

RPM

% WOV

1

2

3

4

5

6

7

8

L

Wi

A

RPM

% WOV

1

2

3

4

5

6

7

8

L

Wo

A

700

100

68

74

67

66

64

62

49

42

69

700

100

74

76

66

69

67

63

52

43

71

80

65

70

64

63

62

60

49

39

66

80

71

73

64

67

66

61

52

44

70

60

64

68

62

61

62

61

51

40

66

60

71

72

63

65

65

61

52

45

69

50

76

72

68

65

62

60

48

40

68

50

71

72

64

65

65

61

52

46

69

1000

100

72

80

73

72

70

71

60

51

76

1000

100

80

85

75

76

75

72

63

52

79

80

64

75

69

68

67

65

56

48

72

80

75

78

70

74

72

68

60

50

76

60

65

74

67

67

66

65

57

49

71

60

76

77

69

71

71

68

60

52

75

50

68

74

68

66

65

65

56

49

71

50

78

79

71

71

71

68

60

52

75

1450

100

79

80

82

81

79

77

79

63

85

1450

100

88

86

84

86

83

79

77

63

88

80

73

77

77

76

75

73

67

59

79

80

84

81

78

82

81

75

70

61

84

60

75

77

75

73

72

72

67

61

78

60

85

80

78

80

79

74

69

62

83

50

78

78

77

74

72

71

67

61

78

50

86

82

79

79

78

74

69

62

82

2000

100

82

86

91

89

87

85

87

78

93

2000

100

90

90

92

93

91

87

86

80

96

80

76

80

85

84

83

80

76

69

87

80

86

87

87

89

89

83

79

73

92

60

81

83

85

81

80

78

75

71

86

60

90

88

87

87

87

82

78

73

90

50

84

84

85

82

79

78

75

71

85

50

92

90

89

87

86

82

78

73

90

2517

100

88

89

90

94

94

90

92

87

99

2517

100

95

94

93

97

98

93

92

89

102

80

82

85

86

90

91

87

82

76

94

80

90

92

89

93

96

90

86

79

98

60

86

87

85

89

87

85

80

76

92

60

95

94

92

90

93

88

85

79

96

50

89

90

90

89

87

85

80

77

92

50

97

96

93

92

93

88

84

79

96

Static Pr

essur

e (in. wg)

Static Pr

essur

e (Pa x 100)

Volume (cfm x 1000)

3

Volume (m /hr x 1000)

0

5

10

15

20

0

5

10

15

20

0

1

2

3

4

5

6

7

8

9

10

11

12

13

0

1

2

3

4

5

6

7

8

9

10

QEI-20II

RPM
BHP
% WOV
Density 0.075 lb/ft

3

Density 1.2 kg/m

3

DO

NO

T S

EL

EC

T

TO

T

HE

L

EF

T

O

F

TH

IS

S

YS

TE

M

C

U

R

VE

1188

3

1497

1774

2030

50% WOV

60% WOV

70% WOV

80% WOV

90% WOV

5

2235

10

15

2517

Performance Data

Maximum Fan RPM

2517

Specification Data

Maximum Motor
Frame Size

254T

Minimum Motor
Starting hp

1/3 hp

.25 kW

Wheel Diameter

24.5 in.

622 mm

Approximate Weight
(Less Motor & Drives)

360 lbs.

163 kg.

Maximum Bhp = (Fan RPM / 1038)

3

Outlet Velocity (FPM) = CFM / 4.14
Tip Speed (FPM) = Fan RPM x 6.41
% WOV = (CFM x 100) / (Fan RPM x 5.07)
Imperial data —

Metric data

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