Greenheck ERV Series Installation, Operation And Maintenance Manual page 27

Accessing the Energy Recovery Wheel in
Models ERV-90 and 120
Disconnect power to the ERV. Remove access panel(s)
labeled "Energy Wheel Cassette Access", which
reveals the energy wheel cassette. There are additional
panels that must be removed in order to slide out the
cassettes. (See pictures providing additional visual
information).
Unplug the wheel drive motor and pull the cassette
halfway out as shown.
NOTE
ERV-90 has two energy wheels with access panels for
both wheels. Wheels slide out on opposite corners.
Energy recovery wheels for ERV-120 are hard-wired
and not designed to slide out.
®
Removing the Energy Recovery Wheel in
ERV-10
First, remove the drive belts and the collars in both
bearings. On the pulley side of the cassette, remove the
four (4) fasteners that hold the bearing support channel
in place. Once the bearing support is removed the
wheel can be pulled from the cassette. To replace the
wheel, reverse this procedure.
Removing the Energy Recovery Wheel Segments
ERV-20, 45, 90, and 120
(stainless steel rim)
Steel retainers are located on the inside of the wheel
rim. Push the retainer towards the center of the wheel,
then lift up and away to release segments.
This panel must
be removed before
the energy wheel
can slide out
(ERV-90 only)
Bracket Segment
Retainer
Lift away from
segment
Catch Segment
Retainer
Push toward center
IMPORTANT
Place retainers back in the original position before
rotating the energy recovery wheel, otherwise
damage to retainer will occur.
Wheel segment removed
Inside of wheel rim
Spoke
Energy Recovery Ventilator 27