Greenheck Fan PN 458294 manual Supply If Applicable, Example for Perforated Face Supply

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B. Supply (If Applicable):

Example for Perforated Face Supply

1.Hood set up

If the make-up air unit has a temperature control, it should be used to keep the supply air at the desired room discharge air temperature.

2.Measure Velocities

Divide the perforated face panel into a grid of equal areas, each approximately 4 in. (100 mm) square.

Measure the velocity at the center of each grid area. A digital 2.75 in. (70 mm) rotating vane anemometer or equivalent is suggested. The center of the anemometer should be held tight to the face of the panel, and parallel to the filter. Both squareness and distance are important for accuracy. Calculate the average velocity of the panel.

3.Measure the length, height, and width of the perforated face panel.

4.Calculate the perforated face panel volume in CFM by using the following formula:

Volume

=

Avg. Velocity

*

Length (in.)

*

Height (in.)

*

0.005

Volume

=

Avg. Velocity

*

Length (m)

*

Height (m)

*

0.72

5.Calculate the system’s volume by repeating the process for the remaining panels and adding the individual panel volumes together.

Filter Readings (fpm)

260

250

255

260

250

255

265

 

 

 

 

 

 

 

270

275

270

280

265

265

270

 

 

 

 

 

 

 

290

285

280

280

275

290

295

 

 

 

 

 

 

 

285

275

280

260

270

265

260

 

 

 

 

 

 

 

Filter Readings (m/hr)

4755 4572 4663 4755 4572 4663 4846

4938 5029 4938 5121 4846 4846 4938

5304 5212 5121 5121 5029 5304 5395

5212 5029 5121 4755 4938 4846 4755

Example: Face Supply Hood with three 28 in. (.711 m) Perforated Panels

 

 

 

Measured velocities in FPM for one perforated panel

 

 

 

 

 

 

 

Average Velocity

=

Sum of Velocity Readings

 

 

 

 

 

 

 

 

 

Number of Readings

 

 

 

 

 

 

 

(Imperial)

=

260 + 250 + … + 265 + 260

= 270.7 fpm

 

 

 

 

 

 

 

28

 

 

 

 

 

 

 

 

(Metric)

=

4755 + 4572 + … + 4846 + 4755

= 4951 m/hr

 

 

 

 

 

 

 

28

 

 

 

 

 

 

 

 

Measure Length and Height = 28 in. (.711 m) long perforated panels x 16 in. (.406 m) high

Volume for one panel

=

Conversion

x

Average

x

Length

x

Height

 

 

 

 

 

Factor

 

Velocity

 

 

 

 

 

 

 

 

=

0.005

x

270.7 fpm

x

28

x

16

=

 

606.4 cfm

 

=

0.72

x

4951 m/hr

x

.711

x

.406

=

1029 m3/hr

Total system volume

=

(Panel 1 Volume) +

(Panel 2 Volume) +

(Panel 3 Volume)

 

 

 

=

606.4

 

+

614.3

+

 

593.8

 

=

1814.5 cfm

 

=

1029

 

+

1044

+

 

1009

 

=

3082 m3/hr

18 Proximity Hood

®

Image 18
Contents Installation, Operation and Maintenance Manual Table of Contents Hood Weights Receiving and HandlingInstallation Hood Installation OverviewRear Filler Panel Installation Instructions End Filler Panel Installation Instructions Hood Hanging HeightContinuous Capture Plenum Hoods Ductwork Exhaust SupplyElectrical Connections External Supply Plenum Installation Installation InstructionsInstalling the Back Supply Plenum Hanging the Back Supply PlenumHanging the Hood with Back Supply Plenum Hood Mounting InstructionsFull Enclosure Panels Plate Shelf with Duct Enclosure Panels Passover Shelf with Duct Enclosure Panels Backsplash Panel Installation Instructions Flat Backsplash PanelDuct Collar Installation Fire System InstallationExhaust Air Balancing Baffles Eabb Checking for BalanceTesting Hood Air Volume Baffle Filter Style Hoods Exhaust Balancing the Kitchen Exhaust SystemRotating Vane Anemometer Supply If Applicable Example for Perforated Face Supply185 + 187.0 fpm High Velocity Cartridge Filters Exhaust Example282 fpm 423.0 cfm Volume with a rotating vane anemometer as follows 1042 4012 m3/hr Amerex Wiring Plan View PRMAnsul Wiring Plan View EquipmentOverall Wiring Plan View HoodWiring for Switch Panels Maintenance Daily Maintenance Weekly MaintenancePeriodic Maintenance Proximity Hood Grease Grabber Filter Cleaning Frequent MaintenanceFilter Washing Frequency Guide Equipment Required CyclesTroubleshooting Problem Cold air can be felt by the cook at the hood Replacement Parts Maintenance Log Warranty

PN 458294 specifications

Greenheck Fan PN 458294 is a prominent product in the HVAC industry, designed to deliver high performance, efficiency, and reliability in various applications. This unit is widely recognized for its ability to optimize airflow while minimizing energy consumption, a feature that is becoming increasingly vital in current energy-conscious markets.

One of the key features of the Greenheck Fan PN 458294 is its robust construction. Built with durable materials, this fan is engineered to withstand harsh environmental conditions, making it suitable for both indoor and outdoor installations. The corrosion-resistant finish further enhances its resilience, ensuring a longer lifespan and reduced maintenance costs.

The fan is equipped with advanced aerodynamic designs that improve its airflow performance. This design focus not only maximizes the fan's efficiency but also provides quieter operation, which is a crucial factor in sensitive environments such as offices, schools, and hospitals. The noise reduction technology integrated into the unit helps maintain a comfortable atmosphere while keeping operational disturbances to a minimum.

In terms of technology, the Greenheck Fan PN 458294 features state-of-the-art motor technology that offers variable speed control. This capability allows users to adjust the fan's operation according to specific needs, enhancing energy efficiency while ensuring optimal airflow. The internally mounted motor and belt drive system contribute to reduced vibration and increased stability, further lowering wear and tear over time.

This fan also incorporates innovative control options, allowing for easy integration into existing building management systems. This smart technology enables users to monitor and adjust performance remotely, ensuring maximum efficiency and adaptability to changing operational demands.

Another noteworthy characteristic of the Greenheck Fan PN 458294 is its versatility. It can be utilized in a variety of applications, including industrial ventilation, commercial exhaust, and air supply systems. The wide range of available configurations and accessory options makes it an ideal choice for meeting diverse project requirements.

In conclusion, the Greenheck Fan PN 458294 stands out in the HVAC market due to its combination of robust construction, advanced aerodynamic design, innovative motor technology, and versatile application capabilities. As energy efficiency continues to be a priority in building design, this fan offers a reliable solution for maintaining optimal airflow while minimizing environmental impact.