Greenheck Fan PN 471755 manual Troubleshooting, Maintenance Documentation

Page 6

 

Troubleshooting

 

 

 

WARNING: Before taking any corrective action, make certain unit is not capable of operation during repairs.

 

 

 

PROBLEM

CAUSE

CORRECTIVE ACTION

 

 

 

Too Much Airflow

Resistance lower than designed

Decrease fan speed.

 

 

 

 

 

Check backdraft dampers for proper operation. Remove

 

System resistance too high

obstructions in ductwork. Clean dirty filters. Check for adequate

 

 

supply air for exhaust fans or exhaust air for supply fans.

Reduced Airflow

Fan too close to damper

Increase distance between fan and damper.

 

 

Fan speed too low

Increase fan speed.

 

 

 

 

 

Excessive dirt buildup on

Clean propeller.

 

propeller

 

 

 

 

 

 

Bearings

Tighten collars and fasteners. Lubricate bearings. Replace

 

defective bearings.

 

 

 

 

 

 

V-Belt drive

Tighten pulleys on motor and fan shaft. Adjust belt tension. Align

 

pulleys properly. Replace worn belts or pulleys. See Maintenance.

 

 

 

 

 

 

 

Clean dirt buildup from propeller. Check all setscrews and

Excessive Noise

Excessive vibration

fasteners for tightness. Check for worn bearing. Correct propeller

 

imbalance. Check for loose dampers, guards or ductwork.

 

 

 

Defective motor

Replace motor.

 

 

 

 

 

Check VFD for drive setting, some controllers are able to be adjust

 

Variable Frequency Drive (VFD)

to lower the harmonic noises sometimes heard during operation by

 

 

adjusting a simple setting on the controller.

 

Debris

Remove all debris from the fan.

 

 

 

 

Electrical Supply

Check fuses/circuit breakers. Check for switches turned off or

 

disconnected. Check for correct supply voltage.

 

 

Fan Does Not

 

 

Drive

Check for broken or worn belts. Tighten loose pulleys.

Operate

 

 

Motor

Assure motor is correct horsepower and not tripping overload

 

 

protector.

 

 

 

 

 

Maintenance Documentation

Job Information

Job Name:___________________________________

Service Organization:__________________________________

Address:_____________________________________

Address:_____________________________________________

City:_________________________________________

City:_________________________________________________

State:________________ Zip:__________________

State:________________ Zip:___________________________

Phone:_______________________________________

Phone:_______________________________________________

Contact Person:______________________________

Work Done By:________________________________________

Nameplate Information

Field Start-Up Documentation

 

Model:_______________________________________

 

 

Volts:_ ________ Hertz:_________ Phase:_______

Actual Voltage:________ Hertz:_______

Phase:_________

Amps:_______________

Mark:_________________

Actual Amperage:_____________________________________

Supply hp:___________

Exhaust hp:___________

Blower Rotation:______________________________________

Serial Number:________________________________

Air Volume: Design cfm:______________________________

Model Voltage:________________________________

Actual cfm:______________________________

Motor Amperage:_ ____________________________

Level of fan (L or H):___________________________________

Fan RPM:_ ___________________________________

Fan RPM Range (min.)____________ (max.)______________

 

Sidewall Propeller Fans • Exhaust, Supply and Filtered Supply

 

6

®

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Page 5 Page 7
Contents General Safety Information Sidewall Propeller FansUnpacking Inspection and Maintenance During StorageReceiving StoragePre-Installation Checks Wall Opening RequirementsSupport Braces Typical InstallationFiltered Supply Wall Housing Installation Pre-Starting ChecksFasteners and Setscrews Routine MaintenanceBelts LubricationTroubleshooting Maintenance DocumentationSBE-1, SBS-1, SBE-2 and SBS-2 L and H propellers Parts ListParts List Belt Drive SBE-3, SBS-3, SBCE, SBCS, and Sbcr L and H propellersParts List Direct Drive WarrantySE1 and SS1 Sizes 8 thru 12 D, G and E motor speeds

PN 471755 specifications

The Greenheck Fan PN 471755 is a high-performance ventilation solution widely recognized for its reliability and efficiency in various commercial and industrial applications. As a leader in air movement and control, Greenheck has set the standard for innovative designs and cutting-edge technologies in the HVAC industry.

The PN 471755 is designed to provide exceptional airflow while maintaining optimal energy efficiency. One of its key features is its advanced motor technology, which incorporates energy-efficient motors that reduce energy consumption and operational costs. This is particularly beneficial for facilities looking to minimize their carbon footprint and comply with increasing energy regulations.

This fan model is built with high-quality materials, ensuring durability and long service life. It utilizes a robust construction that makes it suitable for both indoor and outdoor environments. The corrosion-resistant components enhance its performance in harsh conditions, making it an ideal choice for a variety of applications, from manufacturing plants to commercial kitchens.

Another significant characteristic of the PN 471755 is its quiet operation. Greenheck has implemented sound-dampening technologies that minimize noise levels while ensuring effective airflow. This is crucial for settings where noise control is a priority, such as schools, offices, and healthcare facilities.

The fan also features an easy installation process, with customizable designs that allow for flexibility in various configurations. Users can choose different sizes and mounting options to meet specific needs, ensuring that the PN 471755 integrates seamlessly into existing systems.

Additionally, the PN 471755 is equipped with advanced controls that enable users to monitor and adjust performance in real-time. This technology helps optimize airflow depending on specific demands, providing better indoor air quality and enhancing overall system efficiency.

In conclusion, the Greenheck Fan PN 471755 stands out in the HVAC market due to its innovative technology, energy efficiency, and quiet operation. Its robust design and customizable options make it a versatile choice for meeting diverse ventilation requirements in numerous applications. Whether you are looking to improve air quality or reduce energy costs, the PN 471755 is a reliable and effective solution.
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