a. Visually inspect the prelters, intermediate lters (if
applicable) and nal lters (if applicable). If the prelter
media appears damaged in any way, or if the media
becomes wet, the prelters should be changed im-
mediately. If the intermediate lter media, or nal lter
media appears damaged, the lters should be changed
immediately. Filters should normally be replaced when
the static pressure drop through the media is double that
of new media or when the pressure drop reaches the level
recommended by the lter manufacturer. Original lter
information is provided in the AcuAir project manual.
a.
Visually inspect the unit exterior. The seams between
panels are factory sealed with silicon, and should be re-
sealed if there appears to be any degradation of the original
seal. Any scratches to the exterior of the unit should be
repainted with the factory supplied touch-up paint.
b. Verify the tightness of the door seals. If there is any
indication of air inltrating or escaping the unit via the
doors, the door handles should be adjusted to provide
a tighter seal.
Maintenance of the AcuAir
®
system is relatively easy if
sufcient consideration is given to the minimum maintenance
requirements for keeping air-handling units performing
to specication. These can be easily scheduled using the
following “easy reference” preventative maintenance guide
provided in the following Recommended Maintenance
Intervals table.
Before performing any maintenance or inspection, make
certain that all power has been disconnected, locked out,
and tagged properly.
Johnson Controls-Frick
®
recommends that customers
maintain an inventory of spare parts for the AcuAir air unit.
By maintaining this inventory of spare parts, change-out
requirements can be immediately satised during preventative
maintenance inspections.
It is also advisable to reorder parts prior to taking existing
spares from inventory. This policy helps prevents downtime
due to “forgotten” spare parts order placement.
The type and recommended stock level for recommended part
is listed in the order specic documentation provided after
the AcuAir air unit is shipped from the factory.
Inspect General Condition of Unit X X
Clean debris from unit X X X
Check condition of prelters X X X
Check pressure drop of nal lters X X X
Check drains X X
Inspect heat transfer section X X
Lubricate damper bearings X X
Check and adjust fan belt tension X X
Check burner operation/safties X X
Check unit for unusual noise or vibration X X
Check fan bearing locking collars X X
Check motor voltage current X X
Lubricate fan shaft bearings X X
Lubricate motor base adjusting screws X X
Lubricate the fan motors X X
Check fan for rotation without obstruction X X
Check fan for proper rotation X X
Inspect protective nish X X X
Inspect/adjust damper linkage X X
Check and clean the smoke detector air lter
and detector board
X X
Check the Ammonia Detector sensor cell X X
Check the sealing putty of all electrical conduit
openings both inside the air handler as well as
inside all electrical enclosures.
X X
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