Specifications
2-65
JOHNSON CONTROLS
FORM 102.20-N1 (1109)
2
Air Filters
It is mandatory that lters be in place in the lter frames
of each unit before putting the unit into operation to
protect the coils and keep them clean.
Due to the wide variety of lters, it is not possible to
cover all of them in this section.
Be sure to install all lters in the cor-
rect orientation with regard to airow
and with pleats or pockets vertical
wherever possible. See IOM Section
4, “Filter Segments”.
Most YORK Solution air handling units will be
shipped without lters. The Johnson Controls Sales
ofce is responsible for the order and delivery of lters
in a timely manner. It is important for the contractor
or commissioning agent to be in touch with Johnson
Controls regarding this issue. Various lter types will
have different lead times.
Filter clips if required will be shipped with the rst
lter shipment, except for HEPA lters, in which case
the lter clips will be attached to the lter racks inside
the unit. Filter clips are not required for side load lter
arrangements.
Contractor is responsible for installation of lters.
Contractor is responsible for freight claim if lters
arrive damaged. Other issues such as size, type, spares,
replacements or quantity should be addressed with the
Johnson Controls Sales ofce or project manager.
A list of lter part numbers, sizes and
quantities are shown on a label lo-
cated on each lter segment of each
air handler.
If your unit has HEPA lters the lter
frames, lter bulkheads and lter seg-
ment panels are factory sealed and
must remain sealed for NO air by-
pass.
FIG. 2-97A – TYPICAL FILTERS
Filter Types
The following lter types are used:
• Flat
• Angle
• Rigid
• Bag
• HEPA
• Charcoal.
Maintenance and Replacement
Every month, check the cleanliness of the lters 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