3
PRODUCT OVERVIEW
ABOUT AIRXCHANGE ENERGY
RECOVERY WHEELS
Unless noted, the information in this manual applies to all
available models of Airxchange energy recovery wheels.
Energy recovery wheels rotate between the incoming
outdoor air stream and the building exhaust air stream.
As the wheel rotates, it transfers a percentage of the heat
and moisture differential from one air stream to the other.
Instead of wasting energy in the exhaust airstream, it is
temporarily captured by the energy transfer me-
dia and then released to pre-heat, pre-cool, hu-
midify, or dehumidify the incoming air,
Figure 1
.
Figure 1
An ERV system pre-conditions outdoor air
with recovered energy.
Airxchange wheels are designed with segmented energy
transfer media. The segments are mounted in a stainless
steel wheel, which then rotates within a galvanized met-
al cassette frame. The segmentation allows the transfer
media to be easily removed for cleaning or replacement.
Figure 2
Airxchange structural metal wheel and frame
assembly with removable polymer segments.
MOISTURE TRANSFER
Depending on the application, the energy recovery
media may include a desiccant. Desiccants trans-
fer water molecules between two air streams of
different vapor pressures. The vapor pressure dif-
ferential drives water molecules into/from desic-
cants to transfer moisture from the more humid air
stream to the drier air stream as the wheel rotates.
UL APPROVED AND AHRI CERTIFIED
• Airxchange energy recovery cassettes are
UL Recognized Components under UL Stan-
dard 1812, Ducted Heat Recovery Ventilators.
• Airxchange recovery performance ratings are
certified by the AHRI Air-to-Air Energy Recov-
ery Ventilation Equipment Certification Program.
Figure 3
Airxchange wheels are UL and AHRI
Certified.
