Manual 2100-034G
Page 12 of 21
Unit Maintenance – Filters
All Products – Filters and Filter Servicing
All Bard products contain air lters that must be cleaned or replaced on a regular basis.
Keeping air lter(s) clean is the single most important responsibility of the user of the equipment. Each type
of system must be equipped with an air lter(s) in the indoor circulating air system to clean the air, keep the
system itself clean for peak efciency and capacity and prolong the useful life of the equipment. DO NOT operate
the system without the proper air lters. Filters should be inspected at least monthly and replaced or cleaned
(depending on type) as needed. The useful life of an air lter can vary widely depending upon application and use
of the equipment, and it is critical to monitor lter condition and establish an acceptable maintenance schedule.
Failure to do so will increase operating and repair costs, decrease capacity and efciency and shorten the service
life of the equipment. A common symptom of a dirty lter in the cooling mode is a freeze-up of the indoor coil. The
air lters used may be a disposable (throwaway) type or may be a cleanable type that can be thoroughly cleaned,
rinsed and reused many times. It is important to make sure that the correct lter size and type for your system is
always used. If there is any question as to acceptable lter size or type, review the installation instructions for the
specic equipment involved, if available. Otherwise, consult with your installing dealer or service company. Most
equipment can have the lters inspected and serviced by the user with no problems. In some instances, because of
equipment design or specic installation conditions, it may be necessary to have this procedure done by a qualied
service company. Have your installer or service company show you where the lter(s) are and demonstrate the service
procedure or make arrangements for them to provide this service on an as-needed basis.
Outdoor Unit Wall Mount Room Air Filters
Wall mount lters are normally accessed from the outside of the building. Bard does offer a return air grille with a
lter frame built-in for indoor lter access. The return air lter grille is not acceptable as the only source of ltration
if vent options are installed in the wall mount unit.
The product installation instructions contain additional information regarding unit maintenance. This
information may be accessed at www.bardhvac.com.
Return Air Filter Grille:
Bard offers the RFG return air filter
grille, which may be used in applications
where outdoor air is not brought into the
structure through vent options. If vent
options are used, the filter tray inside the
Bard Wall Mount unit must be used.
Unit Maintenance
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