Energy Core Ventilator 21
®
Fan Wheel & Fasteners
Wheels require very little attention when moving clean
air. Occasionally oil and dust may accumulate on the
wheel causing imbalance. When this occurs the wheel
and housing should be cleaned to assure smooth and
safe operation. Inspect fan impeller and housing for
fatigue, corrosion or wear.
Routinely check all fasteners, set screws and locking
collars on the fan, bearings, drive, motor base and
accessories for tightness. A proper maintenance
program will help preserve the performance and
reliability designed into the fan.
Bearings
Most bearings are permanently lubricated and require
no further lubrication under normal use. Normal use
being considered -20ºF to 120ºF and in a relatively clean
environment. Some bearings are relubricatable and will
need to be regreased depending on fan use. Check your
bearings for grease zerk fittings to find out what type
of bearing you have. If your fan is not being operated
under normal use, bearings should be checked monthly
for lubrication.
External Filter Maintenance
Aluminum mesh, 2-inch deep filters are located in the
supply weatherhood (if the weatherhood option was
ordered). Filters should be checked and cleaned on
a regular basis for best efficiency. The frequency of
cleaning depends upon the cleanliness of the incoming
air. These filters should be cleaned prior to start-up.
Clean filters by rinsing with a mild detergent in warm
water.
Internal Filter Maintenance
The units will typically be provided with 2-inch, pleated
filters in the outdoor air and exhaust airstreams. These
filters should be checked per a routine maintenance
schedule and replaced as necessary to ensure proper
airflow through the unit. See table for pleated filter size
and quantity for each unit. Replacement filters shall be
of same performance and quality as factory installed
filters. Filter type must be pleated design with integral
metal grid. Two acceptable filter replacements are
Aerostar Series 400 or Farr 30/30
®
.
Outdoor Air Filters: Access to the outdoor air filters is
through the door labeled as “Filter Access” on the sides
of the unit.
Exhaust Air Filters: Access to the exhaust air filters is
through the door labeled as “Filter Access” on the sides
of the unit.
Refer to Access Panel Location section for additional
information on filter locations.
Door Seal Maintenance
A bulb seal is installed on the perimeter of the door
frame. Inspect at least annually to ensure that the seal is
still intact.
Energy Recovery Core
Annual inspection of the energy recovery core is
recommended. Units ventilating smoking lounges and
other nonclean air spaces should have energy recovery
core inspections more often based upon needs.
Accessing the energy recovery core - Disconnect
the power to the ECV. Remove access panel.
Removing the energy recovery core - Once the
energy core access doors are removed, the core can be
pulled from the housing. To replace the core, reverse the
procedure.
Recommended cleaning procedure - First, remove
the energy recovery core by following the instructions
on this page.
Once the core is removed, gently vacuum the surfaces
of the core to remove the dirt and debris that has
accumulated.
Frequency of cleaning - A regular cleaning cycle must
be established for the energy recovery core in order to
maintain optimum sensible and latent energy transfer. In
reasonably clean environments such as schools, offices
or retail stores, the energy recovery core should be
inspected annually and cleaned as needed.
Failure to follow a regular cleaning cycle for the energy
recovery core can result in significant energy transfer
performance losses.
Pleated Filter Size and Quantities
Unit Size
Supply Exhaust
Size Qty Size Qty
ECV-10 16 x 20 2 20 x 20 2
ECV-20 16 x 20 2 20 x 20 2
ECV-30 20 x 20 3 20 x 20 3
All dimensions in inches.
WARNING
Do not wash, soak in water or use detergents and
cleaners on the core. This will result in a damaged
core.
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