Troubleshooting - Airflow - Greenheck ERV-251ERV-361 Installation, Operation And Maintenance Manual

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:
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 Energy Recovery Ventilator
Unit #1 Unit #2 Unit #3 Unit #4