Horizontal Suspension; Duct Attachment; Duct Work Transition - York AE SERIES Installation Manual

5169032-UIM-C-0416

HORIZONTAL SUSPENSION

These air handlers may be suspended in horizontal applications. It is
recommended to use angle steel support brackets with minimum 3/8"
threaded rods, supporting the unit from the bottom. Attach the threaded
rods at the locations shown in the Figure 6, leaving enough clearance
between door and rod so that doors maybe easily removed for service.
CAUTION
!
DO NOT lift air handler by the cabinet brace. The cabinet brace is
held in place by the coil channel. The cabinet brace could become
disengaged from the cabinet causing the air handler to fall, potentially
causing injury or damaging property. See Figure 1 for location of cab-
inet braces.
NOTICE
When assembling the support structure, make sure to size to provide
clearance for access door removal.
SUSPENSION SUPPORT LOCATIONS FOR HORIZONTAL APPLICATIONS
2"
MIN. 3/8"
THREADED ROD
1-1/2"
X
Dimension in Inches
Air Handler Cabinet Size
17-1/2 Width-Short H
17-1/2 Width-Long H
21 Width-Short H
21 Width-Long H
24-1/2 Width
FIGURE 6: Horizontal Suspension
DUCT FLANGES
Three duct flanges are provided to assist in positioning and attaching
duct work to the air handler. These flanges are included in the unit parts
bag. With the screws from the parts bag, install one of the duct flanges.
Duct flanges have holes on both legs with one leg longer than the other.
The longer leg can be used to mate against the air handler so that
different thicknesses of duct board can be made flush with the outer
surface of the air handler. Repeat the procedure for the other two
flanges. Refer to Figure 7. If the flanges are not used, they may be
discarded.
6
MIN. 3/8"
THREADED ROD
MIN. 1-1/2" x 1-1/2"
Angle Recommended
length 26" minimum
with 2" clearance on both
sides of Air Handler
1-1/2"
X
H
MIN. 1-1/2" x 1-1/2"
Angle Recommended
length 26" minimum with
2" clearance on both
sides of Air Handler
1-1/2"
H
A0331-001
X H
21 41
21 47-1/2
21-1/2 51-1/2
21-1/2 55-3/4
21-1/2 55-1/2
FIGURE 7: Duct Attachment
FIGURE 8: Duct Work Transition
UNIT CONNECTIONS
There are several ways to handle the supply and return air duct
connections. The location and sizing of the connections depends on the
situation and the method best suited to the installation. Upflow,
horizontal or downflow applications may be used.
The supply air duct should be properly sized by use of a transition to
match unit opening. Refer to Table 1 for air handler unit inlet and outlet
dimensions.
CAUTION
!
Use 1/2" screws to connect duct work to unit. Longer screws will
pierce the drain pan and cause leakage. If pilot holes are drilled, drill
only though field duct and unit bottom duct flange.
Duct work that is not designed to match the supply air opening can
cause turbulence inside the plenum. This turbulence can change the air
flow patterns across the electric heater limit switches. If the factory
suggested transition cannot be fabricated, it is recommended that a
block off plate (approximately 8" high and running the full width of the
plenum) be attached to the supply opening. Refer to Figure 8 as a
visual aid. The use of this block off plate will enable better air circulation
across the limit switches.
AIR FILTERS
.
CAUTION
!
Equipment should never be operated without filters.
Return air filters are required and must be field supplied. Filtration can
be accomplished external to the unit or the integral filter rack may be
used. A 1" filter access rack has been built into the unit. Remove filter
access cover shown. Install proper size filter. Standard 1" size
permanent or throw away filter may be used, or, permanent washable
filters are available using model numbers: 1PF0601, 602 or 603. See
Table 2 for filter size.
DUCT FLANGES
(Shipped in bag with unit)
Johnson Controls Unitary Products
A0445-001