JOHNSON CONTROLS
94
FORM 102.20-N1
ISSUE DATE: 7/06/2016
SECTION 3 - HANDLING, STORAGE, AND INSTALLATION
AIR FILTERS
Filters MUST be in place in the filter frames before
putting the AHU into operation to protect and keep the
coils clean. Due to the wide variety of filters, it is not
possible to cover all filter types. Refer to Figure 147 on
page 95 for typical filter types.
Multi-Sak
Bag Filter
Multi-Pleat Elite
2 in. Pleated Filter
Multi-Pleat XL8
2 in. Pleated Filter
Multi-Cell
12 in. Rigid Filter
FIGURE 146 - TYPICAL FILTER TYPES
LD09650a
Install the filters in the correct orientation with regard
to airflow and with pleats or pockets vertically, wher-
ever possible. Refer to the Air Handling Units - Opera-
tion and Maintenance Manual (Form 102.20-OM2) for
more information.
Most AHUs will be shipped without filters. The John-
son Controls sales office is responsible for ordering
and delivering the filters in a timely manner. The con-
tractor or commissioning agent must contact Johnson
Controls regarding this issue because various filter
types will have different lead times.
Filter latches as shown in Figure 147 on page 95,
if required, will be shipped with the first filter ship-
ment, except for HEPA filters. The HEPA filter latches
will be attached to the filter racks inside of the AHU.
Filter latches are not required for side load filter ar-
rangements.
The contractor is responsible for installing the filters.
and for freight claim, if the filters arrive damaged. Ad-
dress other issues such as size, type, spares, replace-
ments, or quantity with the Johnson Controls sales of-
fice. Filter types are:
• Flat
• Angle
• Rigid
• Charcoal
• HEPA
Maintaining and Replacing Filters
Every month, check the cleanliness of the filters and
replace, if necessary. Replace the filters when the pres-
sure, measured by a manometer, reaches the prescribed
limits for the installation.
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