Performance Data

EM-40

 

 

Performance data results from testing a 36 in. x 36 in.

(914mm x 914mm) damper in accordance with AMCA Standard

500-D using Figure

5.7A (unducted). All data has been corrected

to represent standard air at 0.075 lb/ft3 (1.201 kg/m3).

 

 

 

 

 

 

Operational Data

ÆP in. wg

Veloc-

 

ity fpm

 

(Pa)

 

 

 

 

(m/s)

 

 

 

 

 

 

 

 

 

 

 

 

Damper with Standard

 

Blades Start to Open

0.07 (17)

50 (.254)

 

Bearings

 

 

 

 

 

 

Blades Fully Open

0.20 (50)

1200 (6.2)

 

 

 

 

 

 

 

 

 

 

Leakage testing was conducted in accordance with AMCA Standard 500-D and is expressed as CFM per sq. ft. of damper face area. All data has been corrected to represent standard air at 0.075 lb/ft3 (1.201 kg/m3).

Leakage

36 in. x 36 in. Damper

6

5

4

3

2

Difference

 

Pressure

1.0

 

.9

 

.8

Static

.7

.6

 

.5

 

.4

 

.3

 

.2

1

2

3

4

5

6

7

8

9 1 0

20

30

40

50

60

Air Leakage in CFM/Sq. Ft.

Specifications

Backdraft dampers meeting the following specifications shall be furnished and installed where shown on plans and/or as described in schedules. Dampers shall consist of: heavy gauge 6063T5 extruded aluminum channel frame (0.125 in.[3.2mm] thick) with 31Ú8 in. (79mm) depth; blades from 0.070 in.(1.8mm) 6063T5 extruded aluminum; 3/4 in. (19mm) dia. metallic axles turning in acetal bearings; damper shall be equipped with extruded vinyl blade seals; and internal 1/8 in. (3mm) plated steel blade-to-blade linkage. Damper manufacturer’s printed application and performance data including pressure, velocity and temperature limitations shall be submitted for approval showing damper suitable for pressures to 10 in. wg (2491 Pa), velocities to 3500 fpm (18 m/s) and temperatures to 180°F (82ºC). Testing and ratings to be in accordance with AMCA Standard 500-D. Basis of design is Greenheck model EM-40.

Pressure Drop

10

9

8

7

6

5

4

3

2

 

1.0

 

.9

 

.8

wg)

.7

.6

In.

.5

.4

(

 

Loss

.3

Pressure

.2

.09

 

.10

.08

.07

.06

.05

.04

.03

.02

1

2

3

4

5

6 7 8 910

2

3

4

5

6 7

8 910

2

3

4

5

6 7 8 910

 

 

 

x 10

 

 

 

 

x 100

 

 

 

 

x 1000

Velocity (fpm)

Pressure Limitations

 

10

10.0 in. w.g.

 

 

 

 

8

 

8.0 in. w.g.

 

 

 

 

 

 

 

 

 

w.g.)

6

 

6.0 in. w.g.

 

 

(in.

 

 

 

 

 

 

 

 

 

 

 

Pressure

4

 

 

4.0 in. w.g.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2

 

 

 

 

 

 

0 0

12

24

36

48

 

 

 

Damper Width (in.)

 

 

Velocity Limitations

 

74

 

 

 

 

2500 fpm

 

 

 

 

 

 

 

 

 

60

 

 

 

 

 

 

Height (in.)

 

 

3000 fpm

 

 

 

 

 

 

 

 

 

Damper

36

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3500 fpm

 

 

 

 

0 0

 

 

 

 

 

 

12

24

36

48

 

 

 

 

Damper Width (in.)

 

Copyright © 2008 Greenheck Fan Corporation EM-40 Rev 4 Aug 2008

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Greenheck Fan dimensions Performance Data EM-40, Specifications
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EM-40 specifications

The Greenheck Fan EM-40 is a state-of-the-art ventilation solution designed for commercial and industrial applications. Known for its robust performance and reliability, the EM-40 model is engineered to meet diverse airflow needs while optimizing energy efficiency.

One of the primary features of the EM-40 is its advanced motor technology. The fan is equipped with an energy-efficient EC motor, which offers superior energy savings compared to traditional motors. This technology not only reduces energy consumption but also minimizes operating costs, making the EM-40 an economical choice for many businesses.

The design of the EM-40 is another standout feature. Constructed with durable materials, it ensures longevity and withstands challenging environments. The enclosure is built with high-quality steel, providing strength and resistance to corrosion. This durability makes the fan suitable for various environments, including manufacturing facilities and commercial kitchens.

The EM-40 also emphasizes versatility. With multiple available configurations, including different wheel types and sizes, it can be tailored to fit specific airflow requirements. Whether for exhaust or supply, the fan can handle a wide range of applications. In addition to accommodating various duct systems, its compact design allows for easy installation in tight spaces.

Noise reduction is a significant aspect of the EM-40's design. The fan features an acoustically optimized construction that minimizes operational noise, ensuring a quieter environment. This is particularly beneficial in noise-sensitive areas such as offices or schools, where a peaceful atmosphere is essential.

Another key characteristic of the EM-40 is its user-friendly control options. The fan can be equipped with advanced controls and sensors, allowing for automatic operation based on real-time conditions. This integration enhances the ease of use and further improves energy efficiency by adjusting airflow as needed.

In summary, the Greenheck Fan EM-40 stands out for its energy-efficient motor technology, durable construction, versatile configurations, noise reduction features, and user-friendly controls. These characteristics make it an ideal choice for various ventilation applications, contributing to improved indoor air quality and overall occupant comfort. With the EM-40, users can rely on a product that combines performance, efficiency, and innovation in one dependable solution.
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