2-65
johNSoN coNtroLS
ForM 102.20-N1 (1109)
2
Air Filters
It is mandatory that filters be in place in the filter frames
of each unit before putting the unit into operation to
protect the coils and keep them clean.
Due to the wide variety of filters, it is not possible to
cover all of them in this section.
Be sure to install all filters in the cor
-
rect orientation with regard to airflow
and with pleats or pockets vertical
wherever possible. See IOM Section
4,
“
Filter Segments
”
.
Most YORK Solution air handling units will be
shipped without filters. The Johnson Controls Sales
office is responsible for the order and delivery of filters
in a timely manner. It is important for the contractor
or commissioning agent to be in touch with Johnson
Controls regarding this issue. Various filter types will
have different lead times.
Filter clips if required will be shipped with the first
filter shipment, except for HEPA filters, in which case
the filter clips will be attached to the filter racks inside
the unit. Filter clips are not required for side load filter
arrangements.
Contractor is responsible for installation of filters.
Contractor is responsible for freight claim if filters
arrive damaged. Other issues such as size, type, spares,
replacements or quantity should be addressed with the
Johnson Controls Sales office or project manager.
A list of filter part numbers, sizes and
quantities are shown on a label lo-
cated on each filter segment of each
air handler.
If your unit has HEPA filters the filter
frames, filter bulkheads and filter seg
-
ment panels are factory sealed and
must remain sealed for NO air by-
pass.
Fig. 2-97A – tYPiCAl FiltERS
Filter Types
The following filter types are used:
• Flat
• Angle
• Rigid
• Bag
• HEPA
• Charcoal.
Maintenance and Replacement
Every month, check the cleanliness of the filters and
replace. Filters should be replaced when the pressure
drop, measured by a manometer, reaches the prescribed
limits for the installation.
Bag Filter
Cleanable Filter
4" High
Efficiency
Varicel II
2" Pleated
Filter
12" Cartridge
Cartridge
LD09650
Summary of Contents for YORK SOLUTION LD09624
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