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Troubleshooting – airflow – Greenheck Fan 455924 ERV-522 User Manual

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Energy Recovery Ventilator

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:

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

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

This manual is related to the following products: