INTRODUCTION TO FAN SELECTION

This is the first and most basic of this manual’s three sections, all of which are designed to enable you to select the right fan for the job. Look at this first section as a “user’s manual” for Greenheck literature. It will answer the following questions (and more): What is a SONE? How are model numbers and performance tables used to select a fan? How are direct drive and

belt driven fans different? What types of motors and accessories are used with these fans? Are there Greenheck fans that will match the size and performance of fans from other manufacturers? The goal is to understand and use the Greenheck literature as an important tool in filling a customer’s fan order.

Terms

cfm - Cubic Feet Per Minute. A measure of airflow.

Ps - Static Pressure. Resistance to airflow measured in inches of water gauge.

sone - A measure of loudness. One sone can be approximated as the loudness of a quiet refrigerator at a distance of 5 feet. Sones follow a linear scale, that is, 10 sones are twice as loud as 5 sones.

Bhp - Brake Horsepower. A measure of power consumption. Used to determine the proper motor horsepower and wiring.

hp - Horsepower. Used to indicate a fan’s motor size.

rpm - Revolutions Per Minute. Measure of fan speed.

TS - Tip Speed. The speed of the tip of a fan wheel or prop measured in feet per minute.

AMCA - Air Movement and Control Association. A nationally recognized association which establishes standards for fan testing and performance ratings. AMCA also licenses air volume and sound certified ratings.

Model Designation

For Greenheck belt drive models, the model designation tells the model type, size and the motor hp.

The table below lists model designation suffixes for motor horsepower and fan rpm.

EXAMPLE: GB-090-6

Model is GB

 

 

 

 

hp is 1/6

 

 

 

 

 

 

 

 

Nominal Wheel Dia. 9 in.

For direct drive units, the model designation tells the model type, the size and the motor/fan rpm.

EXAMPLE:

G-121-B

Model is G

 

 

 

 

rpm is 1140

 

 

 

 

 

 

 

 

Nominal Wheel Dia. 12 in.

4

Belt Drive

Direct Drive

Suffix

Motor hp

Suffix

Fan rpm

6

1/6

A

1725

4

1/4

B

1140

3

1/3

C

860

5

1/2

D

1550

7

3/4

G

1300

10

1

E

1050

15

11/2

F

680

20

2

P

1625

30

3

 

 

50

5

 

 

75

71/2

 

 

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Greenheck Fan 240XP-CUb manual Terms, Belt Drive Direct Drive Suffix Motor hp, Fan rpm
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240XP-CUb specifications

The Greenheck Fan 240XP-CUb is a premium addition to the commercial and industrial ventilation market, delivering exceptional performance and reliability. Designed for a variety of applications, the 240XP-CUb combines cutting-edge technology with robust construction to ensure efficient airflow management.

One of the standout features of the 240XP-CUb is its energy efficiency. This model is engineered to minimize energy consumption while maximizing airflow, thanks to advanced motor technology and aerodynamically optimized fan blades. The fan operates with a sound level that is comfortably low, making it an ideal choice for environments where noise reduction is critical, such as schools, hospitals, and office buildings.

The 240XP-CUb is equipped with a high-efficiency, permanent split capacitor (PSC) motor that enhances its overall performance. This type of motor reduces energy costs while providing consistent operation, ensuring longevity and durability. With variable speed options, the fan can be tailored to suit specific application requirements, allowing for better control over airflow and energy use.

In terms of construction, the Greenheck Fan 240XP-CUb is built to last. It features a heavy-duty galvanized steel housing that is resistant to corrosion and can withstand the rigors of commercial use. This ensures that the fan remains reliable in various environments, from manufacturing facilities to food processing plants. The design also includes an easy-access panel for maintenance, further enhancing the unit's user-friendly nature.

Another significant aspect of the 240XP-CUb is its versatility. It can be installed in a range of configurations, including horizontal and vertical orientations, making it suitable for different spaces and applications. Furthermore, it supports a variety of accessories and options that allow for customization, such as inlet guards, dampers, and different mounting configurations.

The Greenheck Fan 240XP-CUb adheres to the latest regulatory standards for efficiency and emissions, making it an environmentally friendly choice for businesses looking to reduce their carbon footprint. With its combination of performance, efficiency, and durability, the 240XP-CUb stands out as a top-tier solution for anyone in need of reliable ventilation solutions. Whether for new installations or retrofits, this fan is designed to meet the demands of modern HVAC systems, ensuring a comfortable and healthy environment.
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