START UP CHECKS

**WARNING**

DO NOT OPERATE ENERGY RECOVERY VENTILATOR WITHOUT THE FILTERS AND BIRDSCREENS INSTALLED.

THEY PREVENT THE ENTRY OF FOREIGN OBJECTS SUCH AS LEAVES, BIRDS, ETC.

DO NOT REMOVE ACCESS PANELS OR OTHER UNIT COMPONENTS WHILE STANDING ON A LADDER OR OTHER UNSTEADY BASE. ACCESS PANELS AND UNIT COMPONENTS ARE HEAVY AND SERIOUS INJURY MAY OCCUR.

CAUTION: See **WARNING** on page 1 and above

For proper unit function and safety, follow everything in this start-up procedure in the order presented. This to be done after the electrical and gas connections are complete.

Pre-Start Check List

1.Disconnect and lock-out all power switches to fan.

2.Check all fasteners, set screws and locking collars on the fan, bearings, drive, motor base and accessories for tightness.

3.Rotate the fan wheel by hand and assure no parts are rubbing.

4.Check the V-belt drive for proper alignment and tension.

Special Tools Required

• Voltage meter

 

• Incline manometer or equivalent

 

• Tachometer

 

• Thermometer

 

• Amperage meter

GENERAL

Check all fasteners and set screws for tightness. This is especially important for bearings and fan wheels. Also, if dampers are not motorized, check that they open and close without binding.

FAN WHEEL ROTATION

Hand rotate the blower to ensure that the wheel is not rubbing against the scroll. If the blower is rotating in the wrong direction, the unit will move some air but not perform properly.

 

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FIGURE 14

Airflow

To check the rotation, open the blower access panels, which are labeled either supply or exhaust, and run the blower momentarily to determine the rotation. Rotation should be in the same direction as airflow at the outlet (See FIGURES 14 & 15). Check for unusual noise, vibration or overheating of bearings. Refer to the “Trouble Shooting” section of this manual if a problem develops.

To reverse the rotation, turn the power off and use the following procedure:

•For single phase units, rewire the motor per the instructions on the motor.

•For three phase units, interchange any two power leads. (this can be done at the motor starter).

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FIGURE 15

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Greenheck Fan HRE-55, HRE-20, HRE-90, HRE-45 manual Start UP Checks, Pre-Start Check List
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HRE-55, HRE-45, HRE-90, HRE-20 specifications

The Greenheck Fan HRE series, specifically the models HRE-20, HRE-90, HRE-55, and HRE-45, represents a blend of innovation and efficiency in the HVAC industry. Built for both commercial and industrial applications, these exhaust fans stand out due to their robust design and advanced operational features.

One of the main features of the HRE series is its energy-efficient motor design. These fans come equipped with a premium efficiency motor that reduces energy consumption while maintaining high performance. The motors are specifically designed to provide exceptional airflow while operating at lower sound levels, ensuring a quieter environment.

The HRE models also showcase advanced aerodynamic design, featuring optimized blade geometry that enhances airflow performance. This design ensures that the fans can deliver consistent and effective air movement even at varying operational conditions. This makes the HRE series suitable for use in a wide range of applications, from commercial kitchens to industrial processes.

Another significant characteristic of the HRE series is its durability. Constructed from high-quality materials, these fans are built to withstand harsh environmental conditions and prolonged usage. The robust casing and corrosion-resistant finishes ensure longevity, reducing the need for frequent repairs or replacements.

In terms of installation and maintenance, the HRE series offers significant advantages. The fans are designed for easy installation with clear mounting instructions. Additionally, maintenance procedures are simplified, allowing for hassle-free access to critical components, which reduces downtime and operating costs.

Technologically, the HRE models incorporate advanced controls and monitoring systems. These systems can offer real-time feedback on operational performance, allowing for proactive maintenance and energy management. Integrated controls can be customized to work with building management systems, providing users with seamless integration and control capabilities.

Overall, the Greenheck Fan HRE-20, HRE-90, HRE-55, and HRE-45 exemplify a commitment to quality and efficiency in commercial and industrial ventilation solutions. Their combination of energy efficiency, advanced design, durability, and user-friendly features make them a leading choice for those seeking reliable airflow solutions. These fans not only meet current industry standards but also set a benchmark for performance and innovation in the HVAC sector.
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