Table 6 — Steam Coil Connection Sizes
FACE
AREA
CONNECTION
39T UNIT SIZE
07
09
11
13
17
21
26
32
39
49
61
74
92
Nozzle Size (in. MPT)
LARGE
Inlet
3
3
3
3
3
3
3
—
—
—
—
—
—
Outlet
2
2
2
2
2
2
2
—
—
—
—
—
—
MEDIUM
Inlet
—
—
—
—
—
—
—
3
3
3
3
3
3
Outlet
—
—
—
—
—
—
—
2
2
2
2
2
2
SMALL
Inlet
2
1
⁄
2
2
1
⁄
2
2
1
⁄
2
2
1
⁄
2
2
1
⁄
2
3
3
3
3
3
3
3
3
Outlet
1
1
⁄
2
1
1
⁄
2
1
1
⁄
2
1
1
⁄
2
1
1
⁄
2
2
2
2
2
2
2
2
2
BYPASS
Inlet
2
1
⁄
2
3
3
3
3
3
3
3
3
3
3
3
3
Outlet
1
1
⁄
2
2
2
2
2
2
2
2
2
2
2
2
2
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
OF
ROWS
FACE
AREA
39T UNIT SIZE
07
09
11
13
17
21
26
32
39
49
61
74
92
Refrigerant R-22 (lb)
4
Large
4
5
5
6
8
11
13
14
19
21
30
38
45
Medium
3
4
5
5
7
9
10
11
12
19
21
30
38
6
Large
5
7
7
9
12
15
19
25
31
39
47
53
66
Medium
4
6
7
8
10
13
15
19
24
31
39
47
53
8
Large
7
8
10
12
15
20
24
35
40
48
60
70
87
Medium
5
7
9
10
13
16
21
30
32
40
48
60
70
Table 8 — Coil Moisture Blowoff Limits (fpm)
FINS
ALUMINUM
COPPER
PER INCH
FINS
FINS
8
550
500
11
550
425
14
550
375
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.
19
Summary of Contents for 39T
Page 43: ...Fig 34 Discharge Fabrication Draw Thru Plenum Fans 43 ...
Page 49: ...Fig 41 Coil Connections and Lifting Points Fig 42 Steam Coil PIping 49 ...
Page 78: ...Fig 64 Blow Thru Unit Coil Removal Fig 65 Plan View Typical Coil 78 ...
Page 81: ...Fig 68 Filter Arrangement 2 in and 4 in Flat 81 ...
Page 82: ...Fig 68 Filter Arrangement 2 in and 4 in Flat cont 82 ...
Page 83: ...Fig 69 Filter Arrangement Angle Filters 2 in Only 83 ...
Page 84: ...Fig 69 Filter Arrangement Angle Filters 2 in Only cont 84 ...
Page 85: ...Fig 70 Filter Arrangement BCF1 Bag or Cartridge Draw Thru 85 ...
Page 86: ...Fig 70 Filter Arrangement BCF1 Bag or Cartridge Draw Thru cont 86 ...
Page 87: ...Fig 71 Filter Arrangement BCF3 Bag or Cartridge Blow Thru 87 ...
Page 88: ...Fig 71 Filter Arrangement BCF3 Bag or Cartridge Blow Thru cont 88 ...
Page 92: ...NOTE A frame shown shaded Fig 74 Fan Discharge Positions 92 ...
Page 102: ......
Page 103: ......