21
Table 7 — Direct Expansion Coil Circuiting Data (cont)
LEGEND
*May be field manifolded for either face split or row split.
†Where each TXV has the same number of circuits, that number is
shown once. When coil has an uneven number of circuits per TXV,
both values are shown.
**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
selection program for correct nozzle selection.
††Not available on 39LB units.
SMALL FACE AREA (39LB, 39LC, 39LF)
UNIT SIZE 03 06 08 10 12
CIRCUITING TYPE Qtr Half Full Qtr Half Full Qtr Half Full Qtr Half Full Half Full
CFM AT 550 FPM 1496 2596 3619 4372 5126
FACE AREA (sq ft) 2.72 4.72 6.58 7.95 9.32
TUBE FACE 12 16 20 20 20
TUBE LENGTH (in.) 26.1 34.0 37.9 45.8 53.7
NUMBER OF CIRCUITS 4 6 — 4 8 16—1020—10201020
NUMBER OF TXVs 22—222—22—2222
NUMBER OF CIRCUITS/TXV† 23—248—510—510510
SUCTION CONNECTIONS
(in. OD) 7/811/8—7/811/813/8—1
1/813/8—1
1/813/811/813/8
DISTRIBUTOR CONNECTIONS
(in. OD) 7/87/8—7/87/811/8—7/87/8—7/87/87/87/8
4-ROW COIL
Circuit Equivalent Length (ft) 52 26 — 62 32 — — 34 18 — 40 20 45 23
Distributor Tube Length (in.)
Face Split 11 11 — 11 11 — — 11 18 — 11 18 11 18
Row Split 11 11 — 11 15 — — 16 18 — 16 18 16 18
Distributor Nozzle Size** 11/211/2—2
1/221/2——44—5555
6-ROW COIL
Circuit Equivalent Length (ft) 58 39 — — 47 24 — 51 26 — 59 30 67 34
Distributor Tube Length (in.)
Face Split 111/2111/2——11
1/2111/2—11
1/213 — 111/213 111/213
Row Split 111/213 — — 15 16 — 16 181/2—1618
1/216 181/2
Distributor Nozzle Size** 11/211/2——2
1/23—44—5555
8-ROW COIL††
Circuit Equivalent Length (ft) —52——6332—6834—78398945
Distributor Tube Length (in.)
Face Split —11
1/2——11
1/2111/2—11
1/213 — 111/213 111/213
Row Split —13——1516—1618
1/2—1618
1/216 181/2
Distributor Nozzle Size** —1
1/2——2
1/23—44—5555
SMALL FACE AREA (39LB, 39LC, 39LF)
UNIT SIZE 15 18 21 25
CIRCUITING TYPE Half Full Half Full Half Full Half Full Double
CFM AT 550 FPM 6666 7689 9405 11,275
FACE AREA (sq ft) 12.12 13.98 17.1 20.5
TUBE FACE 26 30 30 36
TUBE LENGTH (in.) 53.7 53.7 65.5 65.5
NUMBER OF CIRCUITS 16 26 15 30 15 30 18 36 72
NUMBER OF TXVs 2 4* 2 4* 2 4* 2 4* 4*
NUMBER OF CIRCUITS/TXV† 6-7 6-7 7-8 7-8 7-8 7-8 9 9 18
SUCTION CONNECTIONS
(in. OD) 13/813/813/813/813/813/813/813/815/8
DISTRIBUTOR CONNECTIONS
(in. OD) 7/87/87/8-11/87/8-11/87/8-11/87/8-11/811/811/813/8
4-ROW COIL
Circuit Equivalent Length (ft) 45 23 45 23 54 26 54 26 —
Distributor Tube Length (in.)
Face Split 13 16 13 16 13/15 16 16 15 —
Row Split 21 16 23 16 231/216 26 15 —
Distributor Nozzle Size** 63848484—
6-ROW COIL
Circuit Equivalent Length (ft) 67 34 67 34 81 40 — 40 —
Distributor Tube Length (in.)
Face Split 13 16 13 16 13/15 16 — 163/4—
Row Split 21 16 231/216 231/216 — 163/4—
Distributor Nozzle Size** 638484—4—
8-ROW COIL
Circuit Equivalent Length (ft) 89 45 89 45 — 54 — 54 26
Distributor Tube Length (in.)
Face Split 13 16 15 16 — 16 — 163/416
Row Split 21 16 231/216 — 16 — 163/416
Distributor Nozzle Size** 6384—4—4 8
AHU — Air-Handling Unit Selection Program
TXV — Thermostatic Expansion Valve (Field-supplied)