Wheel segment removed

Accessing the Energy Recovery Wheel in Models ERV-522 and 582

Disconnect power to the ERV. Remove access panel(s) labeled “Energy Wheel Cassette Access”, which reveals the energy wheel cassette. There are additional panels that must be removed in order to slide out the cassettes. (See pictures providing additional visual information).

Unplug the wheel drive motor and pull the cassette halfway out as shown.

NOTE: ERV-522 has two energy wheels with access panels for both wheels. Wheels slide out on opposite corners.

Energy recovery wheels for ERV-582 are hard-wired and not designed to slide out.

This panel must be removed before the energy wheel can slide out. (ERV-522 only)

28Model ERV Energy Recovery Unit

Removing the Energy Recovery Wheel in ERV-251

First, remove the drive belts and the collars in both bearings. On the pulley side of the cassette, remove the four (4) fasteners that hold the bearing support channel in place. Once the bearing support is removed the wheel can be pulled from the cassette. To replace the wheel, reverse this procedure.

Removing the Energy Recovery Wheel Segments ERV-361, 521, 581, 522 and 582

(stainless steel rim)

Steel retainers are located on the inside of the wheel rim. Push the retainer towards the center of the wheel, then lift up and away to release segments.

	Bracket Segment
	Retainer
	Lift away from
	segment
Catch Segment
Retainer	Inside of wheel rim
	Spoke
	Push toward center

Important! Place retainers back in the original position before rotating the energy recovery wheel, otherwise damage to retainer will occur.

ERV-361, ERV-251, ERV-521, ERV-582, ERV-522 specifications

Greenheck Fan has established itself as a leader in the design and manufacturing of high-performance ventilation systems, including its innovative energy recovery ventilators (ERVs). Among their popular models are the ERV-581, ERV-522, ERV-582, ERV-521, and ERV-251, each designed to enhance indoor air quality while optimizing energy efficiency.

The ERV-581 offers comprehensive ventilation solutions for commercial buildings, equipped with advanced heat recovery technology. This model features a robust, compact design, allowing for easy installation in limited spaces. Its efficient energy recovery capabilities transfer heat and moisture between incoming and outgoing airstreams, leading to significant reductions in heating and cooling costs. The ERV-581 also includes a user-friendly control panel for simplified operation.

Next in line, the ERV-522 is engineered for larger spaces, balancing higher airflow rates with enhanced energy recovery performance. This model is particularly beneficial for schools and office buildings, where maintaining fresh air quality is paramount. The ERV-522 employs a two-stage filtration system, ensuring that airborne pollutants are effectively captured before being circulated back into the environment. Its resilient construction further ensures longevity and durability in demanding applications.

The ERV-582 enhances the lineup with its dual-function capability, serving both as an energy recovery ventilator and a dehumidification system. This flexibility makes it an ideal choice for climates with high humidity levels, where moisture control is essential. The ERV-582 incorporates Greenheck’s patented technology for optimal performance under varying temperature and humidity conditions, making it a versatile solution for diverse environments.

The ERV-521 stands out with its eco-friendly design, featuring recyclable components that align with sustainable building practices. This model is particularly favored in LEED-certified projects, where energy efficiency and minimal environmental impact are essential. The ERV-521 also includes an intelligent control system that adjusts airflow rates based on occupancy levels, ensuring optimal energy usage.

Finally, the ERV-251 is a compact, energy-efficient model suited for residential installations. It is designed to fit seamlessly into homes, providing essential ventilation while reducing energy consumption. The user-friendly interface allows homeowners to monitor and adjust settings easily, making the ERV-251 a popular choice for those looking to improve indoor air quality without compromising on comfort.

Together, these Greenheck ERV models exemplify cutting-edge technologies and engineering, paving the way for healthier indoor environments while promoting energy conservation. Each unit is tailored to meet specific application needs, making them invaluable assets for any ventilation strategy.