Cleaning the Energy Recovery Wheel
If the wheel appears excessively dirty, it should be
cleaned to ensure maximum operating efficiency. Only
excessive buildup of foreign material needs to be
removed. Discoloration and staining of energy recovery
wheel does not affect its performance.
Thoroughly spray wheel matrix with household cleaner
such as Fantastik
®
or equivalent. Gently rinse with
warm water and using a soft brush remove any heavier
accumulation. A detergent/water solution can also
be used. Avoid aggressive organic solvents, such as
acetone. The energy recovery wheel segments can be
soaked in the above solution overnight for stubborn dirt
or accumulation.
After cleaning is complete, shake the excess water
from the wheel or segments. Dry wheel or segments
before placing them back into the cassette. Place wheel
or segments back into cassette by reversing removal
procedures.
CAUTION
Do not clean energy recovery wheel segments with
water in excess of 140ºF (60ºC).
Do not dry energy recovery wheel segments in air in
excess of 140ºF (60ºC).
The use of a pressure washer to clean segments is
not recommended. Damage could result.
Energy Recovery Wheel Belt
Inspect belts each time
filters are replaced. Belts
that look chewed up
or are leaving belt dust
near the motor pulley
may indicate a problem
with the wheel. Be sure
to inspect wheel for
smooth and unrestricted
rotation. If a belt requires
replacement, contact
the local Greenheck
representative. Instructions
for replacement will ship with the new belt.
Energy Recovery Wheel Bearing
In the unlikely event that
a wheel bearing fails,
the bearing is behind a
removable plate on the
wheel support beam which
is accessible through the
outdoor air filter door (and
exhaust filter door on the
ERV-90 and 120). Contact
the local Greenheck
representative for detailed
instructions on how to
replace the bearing.
Wheel Bearing
Wheel Belt & Pulley
Troubleshooting - Economizer
Alarms
Addressing Alarms
Alarms will signify a faulty sensor. When this occurs,
verify all connections to the sensor and controller are
secure. Press enter twice to clear the alarm. If the issue
persists, consult the factory.
Clearing Alarms
Once the alarm has been identified and the cause has
been removed (e.g. replaced faulty sensor), the alarm
can be cleared from the display.
To clear an alarm, perform the following:
1. Navigate to the desired alarm.
2. Press the
(enter).
3. ERASE? displays.
4. Press
(enter).
5. ALARM ERASED displays.
6. Press
(escape) to complete the action and return
to the previous menu.
NOTE
After clearing the alarm, it will redisplay after five
seconds.
Energy Recovery Ventilator28
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