Greenheck Fan Series L manual Standard Installation

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Unique Construction Features

1FABRA HOOD STYLE - Models LD and LB have a rib-lock aluminum housing. Hood panels are interlocked and attached to sturdy aluminum rails. (Galvanized housings are optional).

2HINGED ACCESS - The entire hood assembly on models LD and LB can be hinged open for access to the internal fan components.

3LOUVERED PENTHOUSE - Models LDP and LBP penthouse style housings are constructed of heavy extruded aluminum louvers with mitered and welded corners.

4HOOD COVER - Models LDP and LBP aluminum hood covers are hinged and removable for access.

5DRIVE FRAME - Constructed from heavy gauge galvanized steel. Belt adjustment is accomplished by loosening fasteners, sliding the motor plate, and retightening fasteners.

6FAN SHAFT - Precisely sized, ground, and polished so the first critical speed is at least 25% over the maximum operating speed. Close tolerances between the shaft and bearing result in longer bearing life.

7BEARINGS - 100% factory tested and designed specifically for air handling applications with

a minimum L10 life in excess of 100,000 hours (L50 average life of 500,000 hours).

8CURB CAP - Curb cap has prepunched mounting holes to ensure correct attachment to the curb.

9MOTOR - Permanently lubricated, sealed ball bearing motors are selected to provide years of trouble-free operation.

10DRIVE ASSEMBLY - Drives are oversized 150% of driven horsepower. Machined cast iron pulleys are factory set to the required RPM and are adjustable for final system balancing. Belts are static free and oil resistant.

11WHEEL - An aluminum, backward inclined, non-overloading, centrifugal wheel is utilized to deliver maximum efficiency. Each wheel is statically and dynamically balanced.

12VIBRATION ISOLATORS - Support the drive assembly and wheel without steel to steel contact providing long life and quiet operation.

13BIRDSCREEN - Galvanized rigid wire protects the fan’s discharge from birds or small objects. (Aluminum birdscreen is optional).

14WINDBAND - Lower windband assembly ensures weathertight and rigid unit construction.

15DISCONNECT SWITCH - NEMA-1 switch is factory mounted and wiring is provided from the motor to the disconnect enclosure as standard. All wiring and electrical components comply with the National Electric Codes (NEC) and are UL Listed or Recognized.

16CONDUIT CHASE - A large diameter conduit for installing electrical wiring through the curb cap into the motor compartment. (Not shown)

STANDARD INSTALLATION

 

 

Models LB, LD, LBP, and LDP exhaust fans are designed

 

 

to meet the needs of general clean air applications. Tests

 

 

have been conducted to ensure safe and reliable fans

 

 

 

capable of withstanding normal exhaust conditions.

 

 

 

When roofing materials extend to the top of the curb,

 

 

 

roof curbs should be 11⁄2 in. (38 mm) (3/4 in. (19 mm)

 

 

 

on a side) less than the unit curb cap to allow for

 

 

 

roofing and flashing.

 

 

 

For recommended duct size, damper size, and

 

 

 

roof opening dimensions, refer to CAPS or the

3/4 in.

 

8 to 12 in.

performance data pages.

 

 

(203 to 305 mm)

(19 mm)

 

 

 

 

Installation must include a means for inspecting,

 

 

 

cleaning, and servicing the exhaust fan.

 

 

 

Due to the varying airstreams encountered in

 

Damper

 

commercial ventilation, system designers must

 

Recommended

 

be aware of national, state, and local codes and

1 1/4 in.

1 1/4 in.

Duct and

guidelines governing these installations. Local code

(32 mm)

Damper Size

(32 mm)

 

 

 

authorities should be consulted before proceeding

 

Recommended

 

with any ventilation project.

 

Roof Opening

 

 

 

 

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Contents Centrifugal Roof Exhaust Fans Centrifugal Roof Exhaust Fans Series LFabra Hood Style Unique Construction FeaturesLB/LD Fabra Hood Style LBP/LDP Louvered Penthouse Style Standard Installation Options and Accessories Severe Duty Option Severe Duty InstallationSevere Duty Dimensions LB 30 Model Number CodeConcrete SteelLDP Dimensions LD DimensionsLD/LDP LD 60 thru LD LDP 60 thru LDPLD 80 thru LD LDP 80 thru LDP LD 100 thru LD LDP 100 thru LDP LB-10 LBP-10 LB DimensionsLBP Dimensions LB-14 LBP-14 LB-18 LBP-18 LB-21 LBP-21 LB-24 LBP-24 LB-30 LBP-30 LB-36 LBP-36 LB-42 LBP-42 LB-48 LBP-48 LB-54 LBP-54 Direct Drive Specifications SpecificationsQuiet dependable operation Other Exhaust Fans

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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