Severe Duty Option

SEVERE DUTY - Specifically designed for applications with extremely high structural design load requirements. The severe duty models LDP and LBP are far superior to any centrifugal roof exhaust fan currently in the market. Designed with structural steel supports and ESD-603D louver blades, the severe duty louver enclosure (SDLE) may be used in any application which requires a fan to endure high winds with the potential of wind blown debris. The louvered housing has been tested in accordance with the following Miami-Dade test protocols:

•Large Missile Impact Test - TAS-201-94

•Uniform Static Air Pressure - TAS-202-94

•Uniform Cyclic Wind Loading - TAS-203-94

To meet the above protocols, the severe duty fan must be mounted on a severe duty roof curb, which is attached directly to the building

structure. Maximum design load is 140 psf.

Available on sizes

•LDP - 60 though 120

•LBP - 10 through 30

NOTICE OF ACCEPTANCE NUMBER 03-0422.05

Weights and dimensions will vary from standard LDP and LBP construction.

Severe Duty Installation

Models LDP and LBP severe duty exhaust fans are designed to meet the needs of general clean air applications. Tests have been conducted to ensure safe, rugged and reliable fans capable of withstanding severe exhaust conditions.

The severe duty roof curb model SD is supplied with this product and is designed with 12 gauge welded steel construction. Greenheck recommends the severe duty curb to be anchored to the structure of the building. Dependent upon roofing material it shall be bolted and welded. For recommended duct size, refer to CAPS or installation manual.

Installation must include a means for inspecting, cleaning, and servicing the exhaust fan.

Due to the varying airstreams encountered in commercial ventilation, system designers must be aware of national, state, and local codes and guidelines governing these installations. Local code authorities should be consulted before proceeding with any ventilation project.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3/4 INCH (19 MM)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1 3/4 INCH (44 MM)

 

 

 

 

 

 

 

 

THROAT DIMENSION

 

 

 

1 3/4 INCH (44 MM)

 

 

 

 

 

 

 

 

(ROOF OPENING)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

OUTSIDE CURB DIMENSION

 

 

 

 

 

 

 

 

12, 18 OR 24 INCHES

 

 

 

 

 

1 INCH (25 MM) INSULATION

 

 

 

 

 

 

 

 

(305, 457, 610 MM)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4 IN.

 

 

 

 

 

 

 

 

ROOF OPENING

 

 

 

4 IN.

 

 

 

(102 MM)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(102 MM)

CORRUGATED

ROOF DECK

CONCRETE

ROOF TRUSS RECOMMENDED

DUCT & DAMPER SIZE

 

1 1/4 INCH (32 MM)

 

 

 

2 1/2 INCH (64 MM)

1 3/4 INCH

2 1/2 INCH (64 MM)

4 INCH

 

6 INCH x 3 INCH

(44 MM)

4 INCH

(102 MM)

(152 MM x 76 MM)

 

 

 

(102 MM)

 

STEEL MOUNTING ANGLE

 

 

 

 

 

(12 GAUGE MINIMUM)

 

 

7

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Greenheck Fan Series L manual Severe Duty Option, Severe Duty Installation
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Series L specifications

Greenheck Fan Series L represents a significant advancement in the world of ventilation and air movement solutions. Known for its exceptional performance and energy efficiency, this series is designed to accommodate various applications, making it a versatile choice for engineers and facility managers alike.

One of the standout features of the Greenheck Fan Series L is its fan design, which has been optimized to deliver maximum airflow with minimal energy consumption. The series utilizes a direct drive motor, which reduces mechanical losses and enhances reliability. This design not only provides significant savings on operating costs but also minimizes maintenance requirements, allowing for longer periods of uninterrupted service.

Additionally, the Series L incorporates advanced aerodynamic technology, ensuring that the fans can operate efficiently even in challenging conditions. The carefully engineered blades and housing contribute to reduced noise levels, making them ideal for environments that prioritize acoustical comfort, such as schools, hospitals, and office buildings.

The Greenheck Fan Series L also offers a range of motor options to suit various operational needs. Customers can choose from premium efficiency motors that meet or exceed energy efficiency standards, further enhancing the sustainability of their ventilation solutions. Voltage and phase options are available to accommodate standard power systems in commercial and industrial settings.

In terms of customization, the Series L boasts multiple configurations, including different sizes and airflow capacities, enabling it to meet the specific requirements of diverse applications. Whether it's for light-duty or heavy-duty use, the series can be tailored to provide the right amount of airflow, ensuring optimal indoor air quality and comfort.

Furthermore, the integration of intelligent controls in the Series L allows for seamless connectivity and monitoring, enabling facility managers to optimize performance and adjust settings remotely. This feature is particularly beneficial in modern smart building applications, where energy efficiency and real-time data management are paramount.

In summary, the Greenheck Fan Series L combines innovative design, robust performance, and advanced technologies to offer an unmatched solution for effective air movement. With its emphasis on energy efficiency, customization, and smart controls, this series stands as a testament to Greenheck's commitment to providing high-quality ventilation solutions that meet the evolving needs of its clients across various industries.
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