Greenheck Fan APEX-200 warranty Vibration, Energy Recovery Wheel

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Unit Start-Up

Vibration

Excessive vibration maybe experienced during initial start-up. Left unchecked, excessive vibration can cause a multitude of problems, including structural and/or component failure. The most common sources of vibration are listed below.

1.Wheel Unbalance

2.Drive Pulley Misalignment

3.Incorrect Belt Tension

4.Bearing Misalignment

5.Mechanical Looseness

6.Faulty Belts

7.Drive Component Unbalance

8.Poor Inlet/Outlet Conditions

9.Foundation Stiffness

Many of these conditions can be discovered by careful observation. Refer to the troubleshooting section of this manual for corrective actions. If observation cannot locate the source of vibration, a qualified technician using vibration analysis equipment should be consulted. If the problem is wheel unbalance, in-place balancing can be done.

Generally, fan vibration and noise is transmitted to other parts of the building by the ductwork. To eliminate this undesirable effect, the use of heavy canvas connectors is recommended.

Energy Recovery Wheel

The APEX contains two energy recovery wheels (see FIGURES 20 & 21). These wheels are inspected for proper mechanical operation at the factory. However, during shipping and handling, shifting can occur that may affect wheel operation. Wheels are accessible through the access doors marked "Energy Wheel Cassette Access". Due to the size and weight of these wheels, they remain stationary and all maintenance is performed in place. There is ample room inside the unit to perform energy recovery wheel servicing.

Turn the energy recovery wheels by hand to verify free

 

operation. The wheel should rotate smoothly and should

FIGURE 20: Inside layout of APEX unit

not wobble.

Drive Belt

Inspect the drive belt. Make sure the belt rides smoothly through the pulley and over the wheel rim.

Air Seals

Air seals are located around the perimeter of the wheel and across the face of the wheel (both sides of wheel). Check that these seals are secure and in good condition.

Air seals which are too tight will prevent proper rotation of the energy recovery wheel. Air seal clearance may be checked by placing a sheet of paper, to act as a feeler gauge, against the wheel face. To adjust the air seals, loosen all eight seal retaining screws. These screws are located on the bearing support that spans the length of the cassette through the wheel center. These seals are located on each side of the wheel; be sure to check both of them. Adjust the seals such that they tug slightly on the sheet of paper as the wheel is turned. Tighten the retaining screws.

Adjustable

Air Seals

Drive Belt

Drive Pulley

Bearing Support

Label showing

cassette serial #

and date code

Replace access doors and apply power. Observe that the wheels rotate freely at about 60 RPM. If wheels do not rotate or are binding, contact your local representative.

FIGURE 21: Energy recovery wheel components

17®

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Contents INSTALLATION, OPERATION, & Maintenance Manual Storage Table of ContentsLifting InstallationBasic Unit Operation Roof Curb Mounting Unit Weights dry weightsRecommended Roof Openings Dampers Rail MountingWeatherhoods Typical Control Center Components Electrical ConnectionsDimensional Data / Access Door Descriptions Service Clearances / Access LocationsDirect Expansion DX Coils Coil Application RecommendationsWater Coils Variable Frequency Drive for Fans E7 Series by Yaskawa See page 13 for VFD on energy recovery wheelDrain Pan Traps Frost Control Application/Operation Testing refer to FigureTesting Modulating the Wheel Optional Accessories Remote Control Panel Special Tools Required Unit Start-UpPre-Start Check List Fan Performance Modifications Supply Fan Plenum TypeExhaust Fans Forward Curved Type Fan Belt Drives Belt Drive InstallationDirection of Fan Wheel Rotation Fan RPMVibration Energy Recovery WheelFan Belts Routine MaintenanceLubrication Bearings MotorsWheel & Fasteners Door Seal Maintenance External Filter MaintenanceInternal Filter Maintenance Winterizing Coils Coil MaintenanceAccessing Energy Recovery Wheel Cleaning Energy Recovery Wheel Segments Model Apex Parts ListBasic Unit Sequence of OperationSummer Operation Winter OperationTest and Balance Report Troubleshooting AirflowSymptom Possible Cause Corrective Action TroubleshootingGreenheck

APEX-200 specifications

The Greenheck Fan APEX-200 is a cutting-edge ventilation solution designed to meet the demands of modern commercial and industrial applications. Engineered with the latest technologies and featuring advanced design characteristics, the APEX-200 stands out for its efficiency, durability, and performance.

One of the prominent features of the APEX-200 is its energy-efficient operation. The unit is equipped with high-efficiency motors that not only reduce energy consumption but also provide optimal airflow, making it an ideal choice for organizations looking to lower their operational costs while maintaining superior performance. The APEX-200’s ability to operate at low sound levels adds to its appeal, allowing it to be installed in noise-sensitive environments without disturbing occupants.

The APEX-200 incorporates Greenheck's patented Aerodynamic Technology, which enhances airflow and minimizes turbulence. This technology ensures that the fan operates smoothly and efficiently, contributing to the overall effectiveness of the ventilation system. The innovative design of the fan blade and housing also plays a crucial role in maximizing performance while minimizing energy loss.

Durability is a key characteristic of the APEX-200. Constructed from high-quality materials, this fan is designed to withstand the rigors of demanding environments. The unit is also built to resist corrosion, ensuring longevity and reducing maintenance needs. This durability makes the APEX-200 suitable for a variety of applications, including manufacturing facilities, warehouses, and commercial kitchens.

Another significant aspect of the APEX-200 is its versatility. The fan is available in various sizes and configurations, allowing it to be tailored to specific project requirements. This flexibility makes it suitable for different airflow and pressure needs, ensuring optimal performance in diverse settings.

The APEX-200 also features advanced controls and monitoring capabilities. These systems can be integrated with building management systems to provide real-time data and insights into operational performance. Such features enhance user convenience and help facility managers optimize energy usage.

In conclusion, the Greenheck Fan APEX-200 is a sophisticated, reliable, and efficient solution for modern ventilation requirements. Its advanced technologies, high-efficiency operation, and durable construction make it an excellent choice for a wide range of applications, ensuring that it not only meets but exceeds the expectations of users in various industries.
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