Johnson Controls XAF Series Installation Manual page 23

Figure 32: Upflow coil installation
NOTICE
Dimension Y must be at least 2/3 of dimension Z. See
Figure 32.
Table 7: Duct work dimensions (in.) - XAU coils
Cabinet
width
Coil model A (in.)
XAUA18A 13 1/2
XAUA24B 13 1/2
XAUB30C 16 1/2
XAUB36D 16 1/2
XAUC42E 20
XAUC48F 20
XAUC60G 20
XAUD60G 23 1/2
XAUD60H 23 1/2
Note: All dimensions are in inches. See Figure 33, Figure 34, and Figure 36.
Installation Manual: XAF, XAH, and XAU Series - Full Cased and Uncased Coils for Cooling and Heat Pumps
Coil shelf
Cabinet opening
height width
pre-form
B (in.)
C (in.)
(minimum)
22 9 1/2
24 9 1/2
26 12 1/2
26 12 1/2
28 16
30 16
34 16
34 19 1/2
38 19 1/2
Johnson Controls Ducted Systems
Table 6: Coil projection dimensions - XAU coils
Coil size Dimension Y (in.)
XAUA18A 3 1/2
XAUA24B 4 1/2
XAUB30C 4 1/2
XAUB36D 5 1/2
XAUC42E 6 1/2
XAUC48F 6 1/2
XAUC60G 9
XAUD60G 9
XAUD60H 9
3. Install the plenum on the furnace and secure
with screws through the 1/2-in. flange out on the
plenum.
4. Cut an opening in the front of the supply air
plenum. See Figure 32, Figure 33, Table 6, and Table
7 for coil and coil access dimensions.
5. Using a folding tool and hand seamer, bend the
sides and top edges of the cut opening forward
from the plenum at a 90° angle. See Figure 33.
Duct
Panel
connector connector
height
lower
D (in.) E (in.)
19 19 1/2
21 21 1/2
23 23 1/2
23 23 1/2
25 25 1/2
27 27 1/2
31 31 1/2
31 31 1/2
35 35 1/2
Dimension Z (in.)
5 1/4
6 3/4
6 3/4
8 1/4
9 3/4
9 3/4
13 1/2
13 1/2
13 1/2
Duct Opening Opening
width height
upper pre-form pre-form
F (in.) G (in.)
13 11 1/2
13 11 1/2
16 14 1/2
16 14 1/2
19 1/2 18
19 1/2 18
19 1/2 18
23 21 1/2
23 21 1/2
H (in.)
18
20
22
22
24
26
30
30
34
23