Fan Belt Drives, Fan RPM | Greenheck Fan APEX-200 instruction

Unit Start-Up

Fan Belt Drives

The fan belt drive components, when supplied by Greenheck Fan Corporation, have been carefully selected for the unit's specific operating condition. Caution: utilizing different components than those supplied could result in unsafe operating conditions which may cause personal injury or failure of the following components: 1) Fan Shaft, 2) Fan Wheel, 3) Bearings, 4) Belt, 5) Motor. Tighten all fasteners and set screws securely and realign drive pulleys after adjustment. Check pulleys and belts for proper alignment to avoid unnecessary belt wear, noise, vibration and power loss. Motor and drive shafts must be parallel and pulleys in line (see FIGURES 17 & 18).

Belt Drive Installation

1. Remove the protective coating from the end of the fan shaft and ensure that it is free of nicks and burrs.

2.Check fan and motor shafts for parallel and angular alignment.

3.Slide sheaves on shafts - do not drive sheaves on as this may result in bearing damage.

4.Align fan and motor sheaves with a straight-edge or string and tighten.

5.Place belts over sheaves. Do not pry or force belts, as this could result in damage to the cords in the belts.

6.With the fan off, adjust the belt tension by moving the motor base. (See

belt tensioning procedures in the Routine Maintenance section of this	FIGURE 17: Aligning
manual). When in operation, the tight side of the belts should be in a	sheaves with a
straight line from sheave to sheave with a slight bow on the slack side.	straight edge

WRONG

CORRECT

FIGURE 18: Proper alignment of motor and drive shaft.

Direction of Fan Wheel Rotation

Blower access is labeled on unit. Check for proper wheel rotation by momentarily energizing the fan. Rotation is determined by viewing the wheel from the drive side and should match the rotation decal affixed to the fan housing (see FIGURE 19). If the wheel is rotating the wrong way, direction can be reversed by interchanging any two of the three electrical leads. Check for unusual noise, vibration, or overheating of bearings. Refer to the “Troubleshooting” section of this manual if a problem develops.

Fan RPM

Supply fan will have a fixed motor pulley. Exhaust fans will have an adjustable motor pulley (on 15 HP and below) preset at the factory to the customer specified RPM. Fan speed can be increased or decreased by adjusting the pitch diameter of the motor pulley. Multi-groove variable pitch pulleys must be adjusted an equal number of turns open or closed. For the exhaust blowers, any increase in fan speed represents a substantial increase in load on the motor. Always check the motor amperage reading and compare it to the amperage rating shown on the motor nameplate when changing fan RPM.

For Exhaust Fans. All access doors must be installed except the control center door. Close off as much of the exhaust blower access opening as possible while measuring the amp draw. Do not operate units with access doors open or without proper ductwork in place as the exhaust motors will overload.

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FIGURE 19

Airflow

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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.