Greenheck Fan ERV-251, ERV-581, ERV-522, ERV-582, ERV-521 manual Access Panel Description and Location

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Access Panel Description and Location

ERV-251, ERV-361, ERV-521, ERV-581

ERV-522

Outdoor Air

Discharge

Exhaust Air

Inlet

1

Interior

Outdoor Air

Discharge

 

5

Exhaust Air

 

Inlet

3

2

36

2

3

4

Outdoor Air

Inlet

Exhaust Air

Discharge

4

1

Outdoor Air Inlet

Exhaust Air Discharge

Arrangement A

Arrangement A

Rooftop

5

1

2

3

6

2

 

3

4

Intake

4

3

1

Exhaust

Hood

Hood

Intake Hood

Exhaust Hood

Arrangement B, C or D

1

Outdoor air blower and motor

Energy wheel cassette

 

 

 

 

Energy wheel cassette

 

Internal filters

2Outdoor air intake damper Frost control

Outdoor air sensors Main disconnect

3Electrical control center Internal filters

4Exhaust air blower and motor

10Model ERV Energy Recovery Unit

Arrangement B, C or D

1Exhaust blower and motor

2

Electric control center

Main Disconnect

 

 

 

 

Energy wheel cassette

3

Internal filters

Frost control

 

 

Outdoor air sensors

 

 

4

Preheater controls

Outdoor air intake damper

 

5Supply blower and motor

6Exhaust air intake damper

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Contents General Safety Information Models ERV-251 ERV-361 ERV-521 ERV-581 ERV-522 ERV-582Unpacking Inspection and Maintenance during StorageReceiving HandlingInstallation Table of ContentsSupplemental Installation Operation and Maintenance Manuals Basic OperationLifting Recommended Roof OpeningRoof Curb Mounting Curb Outside Dimensions and WeightsCurb Outside Dimensions Ductwork ConnectionsRail Mounting / Layout Arrangement a Service ClearancesERV-251, ERV-361, ERV-521, ERV-581 ERV-522, ERV-582 Arrangement B, C or DField Control Wiring Length/Gauge Electrical InformationUnit Accessories Access Panel Description and Location ERV-251, ERV-361, ERV-521, ERV-581 ERV-522Outdoor Air Dimensional Data ERV-522 Unit Size Exterior Dimensions Arrangement C Arrangement DFrost Threshold Temperatures Indoor RH @ 70F Optional AccessoriesFrost Control Application/Operation Modulating the Wheel Testing Temperature Sensor with OverrideEconomizer Application/Operation Enthalpy Sensor with OverrideFactory Set Points Variable Frequency Drives for Energy Recovery BlowersDrive Operation Economizer Signal Source Variable Frequency Drives for Energy Recovery WheelResetting the drive to factory defaults 10 VDCTypical Wiring Diagram TransformerDirty Filter Sensor Service OutletRotation Sensor CO2 SensorDay Timer or On/Off Switch Remote Control Panel and Wiring SchematicsIndicator Lights powered by the ER Unit Hand/Off/Auto SwitchPressure Sensors analog or digital Temperature Sensors 1K Ohm RTDSensors Mounted by Factory Amp Current Sensors analog or digitalStart-Up Pre Start-Up Checklist check as items areStart-Up Checklist General Start-Up InformationEconomizer Application / Operation section Optional Accessories ChecklistOptional Accessories section Variable Frequency Drives sectionUnit Start-Up Drive Belt Energy Recovery WheelVibration Air SealsFan Belts Routine MaintenanceMaintenance Procedures Lubrication Fan MotorsEnergy Recovery Wheel Maintenance External Filter MaintenanceDoor Seal Maintenance Internal Filter MaintenanceRemoving the Energy Recovery Wheel in ERV-251 Accessing the Energy Recovery Wheel in Models ERV-522Wheel segment removed Energy Recovery Wheel Belt Cleaning the Energy Recovery WheelEnergy Recovery Wheel Bearing Parts List Inside layout of ERV-361 Inside layout of ERV-522Basic Unit Other AccessoriesSequence of Operation Summer OperationTroubleshooting Airflow Troubleshooting Unit Symptom Possible Cause Corrective ActionTroubleshooting Unit Maintenance Log Warranty

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.