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FACE
CONNECTION
AREA
Inlet
LARGE
Outlet
Inlet
MEDIUM
Outlet
Inlet
SMALL
Outlet
Inlet
BYPASS
Outlet
NOTE: The following sizes have two coils: medium face area — sizes 61-92; bypass face area — size 92.
Table 7 — Operating Charge (Approximate) — Direct Expansion coil
NUMBER
FACE
OF
AREA
ROWS
Large
4
Medium
Large
6
Medium
Large
8
Medium
Table 6 — Steam Coil Connection Sizes
07
09
11
3
3
3
2
2
2
—
—
—
—
—
—
2
⁄
2
⁄
2
⁄
1
1
1
2
2
2
1
1
⁄
1
1
⁄
1
1
⁄
2
2
2
2
1
⁄
3
3
2
1
1
⁄
2
2
2
07
09
11
13
4
5
5
6
3
4
5
5
5
7
7
9
4
6
7
8
7
8
10
12
5
7
9
10
Table 8 — Coil Moisture Blowoff Limits (fpm)
FINS
PER INCH
8
11
14
NOTES:
1. See AHU Builder™ program for specific limitations. Data shown is for
general use in high latent conditions.
2. Coils with phenolic coated fins exhibit the same limitations as copper
fins.
3. Units apply to clean, properly maintained coils.
39T UNIT SIZE
13
17
21
26
Nozzle Size (in. MPT)
3
3
3
3
2
2
2
2
—
—
—
—
—
—
—
—
2
⁄
2
⁄
3
3
1
1
2
2
1
1
⁄
1
1
⁄
2
2
2
2
3
3
3
3
2
2
2
2
39T UNIT SIZE
17
21
26
32
Refrigerant R-22 (lb)
8
11
13
14
7
9
10
11
12
15
19
25
10
13
15
19
15
20
24
35
13
16
21
30
ALUMINUM
COPPER
FINS
FINS
550
500
550
425
550
375
19
32
39
49
61
—
—
—
—
—
—
—
—
3
3
3
3
2
2
2
2
3
3
3
3
2
2
2
2
3
3
3
3
2
2
2
2
39
49
61
19
21
30
12
19
21
31
39
47
24
31
39
40
48
60
32
40
48
74
92
—
—
—
—
3
3
2
2
3
3
2
2
3
3
2
2
74
92
38
45
30
38
53
66
47
53
70
87
60
70
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