Routine Maintenance, Motors, Fasteners | Greenheck Fan ESRMD, ERD

Routine Maintenance

WARNING

Disconnect and secure to the “OFF” position all electrical power to the fan prior to inspection or servicing. Failure to comply with this safety precaution could result in serious injury or death.

Once the fan has been put into operation, periodic maintenance should be performed on the following items:

1. Motors

Greasing of motors is intended only when fittings are provided. Many fractional horsepower motors are lubricates for life and require no further lubrication. Motors supplied with grease fittings should be greased in accordance with the motor manufacturer's directions given on the motor nameplate.

2. Removal of Dust and Dirt

Model ESRMD fans require periodic cleaning to maintain proper air performance and reliability. Dirt left to accumulate on propeller blades may cause an unbalanced condition resulting in excessive vibration and premature failure of the fan.

Dust and dirt should also be cleaned from the exterior surface of the fan motor and damper actuator(s). Dirt accumulation on the motor/actuator(s) can block ventilation holes and prevent proper cooling. Motors and actuators should never be sprayed directly with water, steam or solvents.

3. Filter Maintenance (Model ESRMDF)

Aluminum mesh filters should be cleaned on a regular basis for optimum fan efficiency. The frequency of cleaning depends upon the cleanliness of the incoming air.

To remove filters in fan sizes 24-30, first remove the hood. This is accomplished by removing the two fasteners on one side of the hood and loosening the other two fasteners in the other side of the hood. Hinge the hood over onto the roof deck; DO NOT prop the hood up, the hood could come down accidentally causing injury. The filters can then be pulled from the slide-out racks.

On sizes 36 to 54, access panels are provided in the ends of the hood which allow the filters to be removed without removing the hood.

Filters should be washed with a mild detergent in warm water. After the filters are dry, an adhesive spray available at most filter distributors may be applied to increase filter efficiency.

4. Fasteners

Fan vibration has a tendency to loosen mechanical fasteners. Periodic inspection should include checking all fasteners for tightness. Particular attention should be paid to fasteners attaching the propeller to the motor shaft and the motor to the motor plate.

5. Damper Plenum Linkage Adjustments

Plenum dampers should open to 45o from closed position. Consult factory before adjusting damper linkages.

ERD, ESRMDF, ESRMD specifications

Greenheck Fan Corporation, a leading manufacturer of air movement and control equipment, has consistently been at the forefront of innovation in the HVAC industry. Among its impressive range of products are the ESRMD, ESRMDF, and ERD fans, which are designed to meet diverse air handling requirements in commercial and industrial applications.

The ESRMD (Energy Saving Roof Mounted Direct Drive) fan is engineered for high performance and energy efficiency. Featuring a direct drive design, this fan minimizes energy consumption while maximizing airflow. Its robust construction and advanced aerodynamic design reduce noise levels, making it ideal for applications in schools, hospitals, and office buildings. The ESRMD is equipped with electronically commutated motors (ECM), which offer significant energy savings compared to traditional motors by adjusting their speed according to the system demand. This responsiveness not only enhances comfort but also extends the product's lifespan.

The ESRMDF (Energy Saving Roof Mounted Direct Drive with Filter) variant incorporates a filtration system, making it particularly useful in environments requiring clean air circulation. This fan not only enhances indoor air quality but also supports compliance with stringent air quality standards. The filter housing is designed for easy access, allowing for quick maintenance and replacement. Similar to the ESRMD, the ESRMDF features a direct drive design and ECM technology, ensuring optimal energy efficiency and performance.

On the other hand, the ERD (Energy Recovery Damper) fan stands out for its ability to recover and recycle thermal energy from exhaust air. This innovative technology allows buildings to utilize the energy from expelled air, significantly reducing heating and cooling costs. The ERD incorporates state-of-the-art enthalpy wheels, which transfer moisture and temperature between incoming and outgoing air streams. This process improves the overall energy efficiency of HVAC systems and contributes to a more sustainable building design.

In summary, the Greenheck ESRMD, ESRMDF, and ERD fans represent a commitment to energy efficiency, advanced technology, and reliability in the HVAC market. With their innovative designs and robust features, these fans not only cater to a wide array of applications but also support energy-saving initiatives, making them an excellent choice for environmentally conscious projects.