One advantage of choosing the GB-101-4-R2 over the GB-101-4-R1 is that it is capable of running at higher rpm’s, which enables the fan to move more air if necessary.

Motor pulleys are adjusted by loosening the set screw and turning the top half of the pulley (see illustrations at right). This causes the pulley diameter to change, which results in changing the fan rpm.

Belt

Opening the pulley decreases fan rpm. Closing the pulley increases fan rpm.

Direct Drive Selection

Selection of direct drive fans (those with the motor shaft connected to the fan wheel or propeller) is nearly the same as belt drive selection. However, there are two differences worth noting. Where belt drive fan speed can be altered by adjusting the motor pulley, direct drive fans (since they have no pulleys) must use a different method.

1.To adjust a direct drive fan's speed (also motor speed) or to provide a means of meeting an exact performance requirement, a speed control can be furnished. Speed controls vary the voltage supplied to the fan and slows it down; a principle similar to the way dimmer light switches work.

2.Models CUE and CW, sizes 060-095 and Model SQ, sizes 60-95, are provided with 115 volt, 60 cycle motors. The three speeds are 1550 rpm (D), 1300 rpm (G) and 1050 rpm (E). Changing a motor lead is all that is necessary to change speeds. When selecting a model with 3 speed motors, it is recommended that the G speed be chosen whenever possible. This is the middle speed, which gives the greatest flexibility in air volume because airflow can be increased or decreased simply by changing a motor lead.

Typical Motor Tag

Electrical Instructions

Suffix Letter

Motor Speed

Wiring Connections

D

1550 rpm

White to L1 Black to L2

G

1300 rpm

White to L1 Blue to L2

E

1050 rpm

White to L1 Red to L2

Motor Information (Belt Drive Only)

When specifying a belt drive fan, the model designation does not completely describe the unit. Additional information about the motor is necessary. These items are listed below:

Motor Enclosure

This will be either “Open” (open, drip proof), “TE” (totally enclosed) or “EXP” (explosion resistant). Open is the most common and will be supplied unless otherwise specified.

Speeds

Motors are available in either single speed or two speed. Single speed motors are 1725 rpm. Two speed motors will be 1725/1140 rpm. Single speed will be supplied unless otherwise specified.

Electrical Characteristics

Voltage and phase. Voltage can be 115, 208, 230 or

460.Phase is either single or 3 phase. A 115 volt, single phase motor is shown as 115/1. Typically, motors of 1/2 hp and less are single phase. Motors of 3/4 hp and greater are 3 phase.

Accessories

Most fans are ordered with accessories. Here are some common accessories for selected models:

Model

G & GB

CUBE

SB

Common Accessories

Model

Common Accessories

Roof Curb

SP & CSP

 

 

Speed Control

 

 

Backdraft Damper

 

 

Discharge Vents

 

 

 

 

 

Roof Curb

 

 

 

Backdraft Damper

 

 

 

Grease Trap

SQ & BSQ

 

 

Vibration Isolators

Wall Mount Housing or

 

 

 

 

 

 

 

Wall Mount Collar

 

 

 

 

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Greenheck Fan 240XP-CUb manual Direct Drive Selection, Motor Information Belt Drive Only, Accessories
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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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