Table 20 — Direct Expansion Coil Data (cont)
MEDIUM FACE AREA COILS (cont)
39T UNIT SIZE 61 74 92
CIRCUITING TYPE Half Full Double Half Full Double Half Full Double
Airflow (cfm) at 550 fpm 26,973 33,191 40,567
Total Face Area (sq ft) 49.0 60.4 73.6
Tubes in Face (Upper/Lower) 24/26 26/28 32/34
Tube Length (in.) 113 128
3
⁄
4
128
3
⁄
4
No. of Circuits — Total 25 50 100 27 54 108 33 66 132
COIL SECTIONS U L ULUL U L ULUL U L ULUL
4-Row Coil
Circuit Equivalent Length (in.) 85.8 85.8 48.2 48.2 — 96.3 96.3 53.4 53.4 — 96.3 96.3 53.4 53.4 —
Face-Split Coils
No. of TXVs 2222 — 2222 — 2222 —
No. of Circuits/Distributor* 6 6,7 12 13 — 6,7 7 13 14 — 8 8,9 16 17 —
Suction Connections (in. OD) 1
1
⁄
8
1
3
⁄
8
1
3
⁄
8
1
3
⁄
8
—1
1
⁄
8
1
3
⁄
8
1
5
⁄
8
1
5
⁄
8
—1
3
⁄
8
1
3
⁄
8
1
5
⁄
8
1
5
⁄
8
—
Distributor Connections (in. OD)
7
⁄
8
7
⁄
8
1
3
⁄
8
1
3
⁄
8
—
7
⁄
8
7
⁄
8
1
3
⁄
8
1
3
⁄
8
—1
1
⁄
8
1
1
⁄
8
1
3
⁄
8
1
3
⁄
8
—
Distributor Tube Length (in.) 15 15 18 18 — 15 15 21 21 — 26 26 18 18 —
Distributor Nozzle Size† 12 12 15 15 — 12 12 17 17 — 20 20 20 20 —
Row-Split Coils
No. of TXVs 2222 — 2222 — 2222 —
No. of Circuits/Distributor* 6 6,7 12 13 — 6,7 7 13 14 — 8 8,9 16 17 —
Suction Connections (in. OD) 1
1
⁄
8
1
3
⁄
8
1
3
⁄
8
1
3
⁄
8
—1
1
⁄
8
1
3
⁄
8
1
5
⁄
8
1
5
⁄
8
—1
3
⁄
8
1
3
⁄
8
1
5
⁄
8
1
5
⁄
8
—
Distributor Connections (in. OD)
7
⁄
8
7
⁄
8
1
3
⁄
8
1
3
⁄
8
—
7
⁄
8
7
⁄
8
1
3
⁄
8
1
3
⁄
8
—1
1
⁄
8
1
1
⁄
8
1
3
⁄
8
1
3
⁄
8
—
Distributor Tube Length (in.) 21 21 23 23 — 22 22 23 23 — 26 26 28 28 —
Distributor Nozzle Size† 12 12 15 15 — 12 12 17 17 — 20 20 20 20 —
6-Row Coil
Circuit Equivalent Length 129.5 129.5 64 64 — 145.2 145.2 71.9 71.9 — 145.2 145.2 71.9 71.9 —
Face-Split Coils
No. of TXVs 2222 — 2222 — 2222 —
No. of Circuits/Distributor* 6 6,7 12 13 — 6,7 7 13 14 — 8 8,9 16 17 —
Suction Connections (in. OD) 1
1
⁄
8
1
3
⁄
8
1
3
⁄
8
1
3
⁄
8
—1
1
⁄
8
1
3
⁄
8
1
5
⁄
8
1
5
⁄
8
—1
3
⁄
8
1
3
⁄
8
1
5
⁄
8
1
5
⁄
8
—
Distributor Connections (in. OD)
7
⁄
8
7
⁄
8
1
3
⁄
8
1
3
⁄
8
—
7
⁄
8
7
⁄
8
1
3
⁄
8
1
3
⁄
8
—1
1
⁄
8
1
1
⁄
8
1
3
⁄
8
1
3
⁄
8
—
Distributor Tube Length (in. ) 15 15 18 18 — 15 15 21 21 — 26 26 18 18 —
Distributor Nozzle Size† 12 12 15 15 — 12 12 17 17 — 20 20 20 20 —
Row-Split Coils
No. of TXVs 2222 — 2222 — 2222 —
No. of Circuits/Distributor* 6 6,7 12 13 — 6,7 7 13 14 — 8 8,9 16 17 —
Suction Connections (in. OD) 1
1
⁄
8
1
3
⁄
8
1
3
⁄
8
1
3
⁄
8
—1
1
⁄
8
1
3
⁄
8
1
5
⁄
8
1
5
⁄
8
—1
3
⁄
8
1
3
⁄
8
1
5
⁄
8
1
5
⁄
8
—
Distributor Connections (in. OD)
7
⁄
8
7
⁄
8
1
3
⁄
8
1
3
⁄
8
—
7
⁄
8
7
⁄
8
1
3
⁄
8
1
3
⁄
8
—1
1
⁄
8
1
1
⁄
8
1
3
⁄
8
1
3
⁄
8
—
Distributor Tube Length (in.) 21 21 23 23 — 22 22 23 23 — 26 26 28 28 —
Distributor Nozzle Size† 12 12 15 15 — 12 12 17 17 — 20 20 20 20 —
8-Row Coil
Circuit Equivalent Length — 85.8 85.8 42.2 42.2 — 96.3 96.3 47.4 47.4 — 96.3 96.3 47.4 47.4
Face-Split Coils
No. of TXVs — 2244 — 2244 — 2244
No. of Circuits/Distributor* — 12131213 — 13141314 — 16171617
Suction Connections (in. OD) —1
3
⁄
8
1
5
⁄
8
1
3
⁄
8
1
5
⁄
8
—1
5
⁄
8
1
5
⁄
8
1
5
⁄
8
1
5
⁄
8
—1
5
⁄
8
1
5
⁄
8
1
5
⁄
8
1
5
⁄
8
Distributor Connections (in. OD) —1
3
⁄
8
1
3
⁄
8
1
3
⁄
8
1
3
⁄
8
—1
3
⁄
8
1
3
⁄
8
1
3
⁄
8
1
3
⁄
8
—1
3
⁄
8
1
3
⁄
8
1
3
⁄
8
1
3
⁄
8
Distributor Tube Length (in.) — 18181818 — 21212121 — 18181818
Distributor Nozzle Size† — 1515 6 6 — 1717 8 8 — 20201010
Row-Split Coils
No. of TXVs — 2244 — 2244 — 2244
No. of Circuits/Distributor* — 12131213 — 13141314 — 16171617
Suction Connections (in. OD) —1
3
⁄
8
1
5
⁄
8
1
3
⁄
8
1
5
⁄
8
—1
5
⁄
8
1
5
⁄
8
1
5
⁄
8
1
5
⁄
8
—1
5
⁄
8
1
5
⁄
8
1
5
⁄
8
1
5
⁄
8
Distributor Connections (in. OD) —1
3
⁄
8
1
3
⁄
8
1
3
⁄
8
1
3
⁄
8
—1
3
⁄
8
1
3
⁄
8
1
3
⁄
8
1
3
⁄
8
—1
3
⁄
8
1
3
⁄
8
1
3
⁄
8
1
3
⁄
8
Distributor Tube Length (in.) — 23231818 — 23232121 — 28281818
Distributor Nozzle Size† — 1515 6 6 — 1717 8 8 — 20201010
LEGEND
L—Lower
TXV — Thermostatic Expansion Valve (Field-Supplied)
U—Upper
*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 61 medium
face area coil has 6 circuits on both distributors; the lower coil has 6 circuits on one distributor and 7 circuits on the
other 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.
58
To Next Page
Loading...
Need help?
General
