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39T UNIT SIZE
CIRCUITING TYPE
Airflow (cfm) at 550 fpm
Total Face Area (sq ft)
Tubes in Face
Tube Length (in.)
No. of Circuits — Total
4-Row Coil
Circuit Equivalent Length (in.)
Face-Split Coils
No. of TXVs
No. of Circuits/Distributor*
Suction Connections (in. OD)
Distributor Connections (in. OD)
Distributor Tube Length (in.)
Distributor Nozzle Size†
Row-Split Coils
No. of TXVs
No. of Circuits/Distributor*
Suction Connections (in. OD)
Distributor Connections (in. OD)
Distributor Tube Length (in.)
Distributor Nozzle Size†
6-Row Coil
Circuit Equivalent Length (in.)
Face-Split Coils
No. of TXVs
No. of Circuits/Distributor*
Suction Connections (in. OD)
Distributor Connections (in. OD)
Distributor Tube Length (in.)
Distributor Nozzle Size†
Row-Split Coils
No. of TXVs
No. of Circuits/Distributor*
Suction Connections (in. OD)
Distributor Connections (in. OD)
Distributor Tube Length (in.)
Distributor Nozzle Size†
8-Row Coil
Circuit Equivalent Length (in.)
Face-Split Coils
No. of TXVs
No. of Circuits/Distributor*
Suction Connections (in. OD)
Distributor Connections (in. OD)
Distributor Tube Length (in.)
Distributor Nozzle Size†
Row-Split Coils
No. of TXVs
No. of Circuits/Distributor*
Suction Connections (in. OD)
Distributor Connections (in. OD)
Distributor Tube Length (in.)
Distributor Nozzle Size†
LEGEND
TXV — Thermostatic Expansion Valve (Field-Supplied)
*Where each distributor has the same number of circuits, that number is shown once. When a coil has
an uneven number of circuits per distributor, both values are shown. For example, the upper coil of a
half-circuit size 32 large face area coil has 5 circuits on one distributor and 6 circuits on the other
distributor; the lower coil has 6 circuits on each distributor.
†Factory-supplied distributors have factory-selected nozzle sizes shown. If necessary, replace factory-
supplied nozzles with field-supplied and installed nozzles. Consult Electronic Catalog AHU Builder™
program for correct nozzle selection.
Table 20 — Direct Expansion Coil Circuiting Data
LARGE FACE AREA COILS
07
Quarter
Half
Full
3688
6.7
18
42
15
⁄
16
4
9
18
89.9
39.1
24.8
2
2
2
2
4,5
9
7
⁄
1
1
⁄
1
3
⁄
8
8
8
7
⁄
7
⁄
1
1
⁄
8
8
8
11
16
15
4
4
4
2
2
2
2
4,5
9
⁄
1
⁄
1
⁄
7
1
3
8
8
8
7
⁄
7
⁄
1
1
⁄
8
8
8
11
16
15
4
4
4
—
59.4
29.0
—
2
2
—
4,5
9
—
1
1
⁄
1
3
⁄
8
8
—
7
⁄
1
1
⁄
8
8
—
16
15
—
4
4
—
2
2
—
4,5
9
—
1
1
⁄
1
3
⁄
8
8
—
7
⁄
1
1
⁄
8
8
—
16
15
—
4
4
—
79.7
39.1
—
2
2
—
4,5
9
—
1
1
⁄
1
3
⁄
8
8
—
⁄
1
⁄
7
1
8
8
—
16
15
—
4
4
—
2
2
—
4,5
9
—
1
1
⁄
1
3
⁄
8
8
—
⁄
1
⁄
7
1
8
8
—
16
15
—
4
4
09
Half
Full
Half
Full
4921
5748
8.9
10.5
22
22
46
7
⁄
54
8
11
22
11
22
41.7
26.1
47.0
28.7
2
2
2
2
5,6
11
5,6
11
1
1
⁄
1
3
⁄
1
1
⁄
1
3
8
8
8
7
⁄
1
3
⁄
7
⁄
1
3
8
8
8
21
18
21
18
5
5
6
6
2
2
2
2
5,6
11
5,6
11
1
⁄
1
⁄
1
⁄
1
1
3
1
3
8
8
8
7
⁄
1
3
⁄
7
⁄
1
3
8
8
8
21
18
21
18
5
5
6
6
63.4
30.9
71.2
34.9
2
2
2
2
5,6
11
5,6
11
1
1
⁄
1
3
⁄
1
1
⁄
1
3
8
8
8
7
⁄
1
3
⁄
7
⁄
1
3
8
8
8
21
18
21
18
5
5
6
6
2
2
2
2
5,6
11
5,6
11
1
1
⁄
1
3
⁄
1
1
⁄
1
3
8
8
8
7
⁄
1
3
⁄
7
⁄
1
3
8
8
8
21
18
21
18
5
5
6
6
85.0
41.7
—
47.0
2
2
—
2
5,6
11
—
11
1
1
⁄
1
3
⁄
—
1
3
8
8
⁄
1
⁄
—
1
7
3
3
8
8
15
18
—
18
5
5
—
6
2
2
—
2
5,6
11
—
11
1
1
⁄
1
3
⁄
—
1
3
8
8
⁄
1
⁄
—
1
7
3
3
8
8
15
18
—
18
5
5
—
6
51
11
13
Double
Half
Full
7173
13.0
24
3
⁄
62
5
⁄
4
44
12
24
—
52.2
31.4
—
2
2
—
6
12
⁄
—
1
1
⁄
1
3
⁄
8
8
8
⁄
—
7
⁄
1
3
⁄
8
8
8
—
21
18
—
8
8
—
2
2
—
6
12
⁄
—
1
⁄
1
⁄
1
3
8
8
8
⁄
—
7
⁄
1
3
⁄
8
8
8
—
21
18
—
8
8
—
79.1
38.8
—
2
2
—
6
12
⁄
—
1
1
⁄
1
3
⁄
8
8
8
⁄
—
7
⁄
1
3
⁄
8
8
8
—
21
18
—
8
8
—
2
2
—
6
12
⁄
—
1
1
⁄
1
3
⁄
8
8
8
⁄
—
7
⁄
1
3
⁄
8
8
8
—
21
18
—
8
8
22.7
—
52.2
4
—
2
11
—
12
⁄
1
3
⁄
—
1
3
⁄
8
8
8
⁄
1
⁄
—
1
⁄
3
3
8
8
8
13
—
18
3
—
8
4
—
2
11
—
12
⁄
1
3
⁄
—
1
3
⁄
8
8
8
⁄
1
⁄
—
1
⁄
3
3
8
8
8
13
—
18
3
—
8
Double
8
48
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
25.4
4
12
1
3
⁄
8
1
⁄
3
8
13
4
4
12
1
3
⁄
8
1
⁄
3
8
13
4
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