Greenheck Fan ERV-582, ERV-581, ERV-522, ERV-521, ERV-251, ERV-361 manual Troubleshooting Airflow

Page 32

Troubleshooting – Airflow

Test and Balance Report

The Test and Balance Report (TAB) is utilized to determine whether the appropriate amount of outdoor air and exhaust air is being supplied and removed from a building, respectively. There are no set rules on what information must be included in a TAB report. As such, if a TAB report indicates that the airflow on a unit is low, prior to contacting the factory, please determine the following information:

Unit #1

Unit #2

Unit #3

Unit #4

Model Number

Serial Number

Nameplate Information

Voltage

Hertz

Phase

Outdoor Air Fan Amps

Exhaust Fan Amps

Outdoor Air Fan Horsepower

Exhaust Fan Horsepower

Design Airflow

Outdoor Air

Exhaust

Measured Airflow

Outdoor Air

Exhaust

Measured Data

Blower Rotation

Outdoor Air Fan RPM

Exhaust Fan RPM

Outdoor Air Fan Amp Draw

Exhaust Fan Amp Draw

Pressure Drop Across Energy Recovery Wheel

Outdoor Air Side

Exhaust Air Side

Airflow problems can often be tied back to improper ductwork installation. Be sure to install ductwork in accordance with SMACNA and AMCA guidelines.

32 Model ERV Energy Recovery Unit

Image 32
Contents General Safety Information Models ERV-251 ERV-361 ERV-521 ERV-581 ERV-522 ERV-582Inspection and Maintenance during Storage ReceivingUnpacking HandlingTable of Contents Supplemental Installation Operation and Maintenance ManualsInstallation Basic OperationLifting Recommended Roof OpeningCurb Outside Dimensions and Weights Curb Outside DimensionsRoof Curb Mounting Ductwork ConnectionsRail Mounting / Layout Service Clearances ERV-251, ERV-361, ERV-521, ERV-581 ERV-522, ERV-582Arrangement a 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 Control Application/Operation Optional AccessoriesFrost Threshold Temperatures Indoor RH @ 70F Testing Temperature Sensor with Override Economizer Application/OperationModulating the Wheel Enthalpy Sensor with OverrideDrive Operation Variable Frequency Drives for Energy Recovery BlowersFactory Set Points Variable Frequency Drives for Energy Recovery Wheel Resetting the drive to factory defaultsEconomizer Signal Source 10 VDCTypical Wiring Diagram TransformerService Outlet Rotation SensorDirty Filter Sensor CO2 SensorRemote Control Panel and Wiring Schematics Indicator Lights powered by the ER UnitDay Timer or On/Off Switch Hand/Off/Auto SwitchTemperature Sensors 1K Ohm RTD Sensors Mounted by FactoryPressure Sensors analog or digital Amp Current Sensors analog or digitalPre Start-Up Checklist check as items are Start-Up ChecklistStart-Up General Start-Up InformationOptional Accessories Checklist Optional Accessories sectionEconomizer Application / Operation section Variable Frequency Drives sectionUnit Start-Up Energy Recovery Wheel VibrationDrive Belt Air SealsRoutine Maintenance Maintenance Procedures LubricationFan Belts Fan MotorsExternal Filter Maintenance Door Seal MaintenanceEnergy Recovery Wheel Maintenance Internal Filter MaintenanceWheel segment removed Accessing the Energy Recovery Wheel in Models ERV-522Removing the Energy Recovery Wheel in ERV-251 Energy Recovery Wheel Bearing Cleaning the Energy Recovery WheelEnergy Recovery Wheel Belt Parts List Inside layout of ERV-361 Inside layout of ERV-522Other Accessories Sequence of OperationBasic Unit 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.