Carrier 39LA-25 Installation, Start-Up And Service Instructions Manual page 41

Indoor air-handling units
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UNIT SIZE
CIRCUITING TYPE
CFM AT 550 FPM
FACE AREA (sq ft)
TUBE FACE
TUBE LENGTH (in.)
NUMBER OF CIRCUITS
NUMBER OF TXVs
NUMBER OF CIRCUITS/TXV*
SUCTION CONNECTIONS
(in. OD)
DISTRIBUTOR CONNECTIONS
(in. OD)
4-ROW COIL
Circuit Equivalent Length (ft)
Distributor Tube Length (in.)
Face Split
Row Split
Distributor Nozzle Size†
6-ROW COIL
Circuit Equivalent Length (ft)
Distributor Tube Length (in.)
Face Split
Row Split
Distributor Nozzle Size†
8-ROW COIL††
Circuit Equivalent Length (ft)
Distributor Tube Length (in.)
Face Split
Row Split
Distributor Nozzle Size†
UNIT SIZE
CIRCUITING TYPE
CFM AT 550 FPM
FACE AREA (sq ft)
TUBE FACE
TUBE LENGTH (in.)
NUMBER OF CIRCUITS
NUMBER OF TXVs
NUMBER OF CIRCUITS/TXV*
SUCTION CONNECTIONS
(in. OD)
DISTRIBUTOR CONNECTIONS
(in. OD)
4-ROW COIL
Circuit Equivalent Length (ft)
Distributor Tube Length (in.)
Face Split
Row Split
Distributor Nozzle Size†
6-ROW COIL
Circuit Equivalent Length (ft)
Distributor Tube Length (in.)
Face Split
Row Split
Distributor Nozzle Size†
8-ROW COIL
Circuit Equivalent Length (ft)
Distributor Tube Length (in.)
Face Split
Row Split
Distributor Nozzle Size†
LEGEND
AHU
— Air-Handling Unit Selection Program
TXV
— Thermostatic Expansion Valve (Field-supplied)
*
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.
Table 13 — Direct Expansion Coil Circuiting Data (cont)
SMALL FACE AREA (39LB, 39LC, 39LF)
03
Qtr
Half
Full
Qtr
1496
2.72
12
26.1
4
6
4
2
2
2
2
3
2
7/8
1-1/8
7/8
7/8
7/8
7/8
52
26
62
11
11
11
11
11
11
1-1/2
1-1/2
2-1/2
58
39
11-1/2 11-1/2
11-1/2
13
1-1/2
1-1/2
52
11-1/2
13
1-1/2
SMALL FACE AREA (39LB, 39LC, 39LF)
15
Half
Full
Half
6666
12.12
26
53.7
16
26
15
2
4**
6-7
6-7
7-8
1-3/8
1-3/8
1-3/8
7/8
7/8
7/8-1-1/8
45
23
45
13
16
13
21
16
23
6
3
67
34
67
13
16
13
21
16
23-1/2
6
3
89
45
89
13
16
15
21
16
23-1/2
6
3
06
08
Half
Full
Qtr
Half
2596
3619
4.72
6.58
16
20
34.0
37.9
8
16
10
2
2
2
4
8
5
1-1/8
1-3/8
1-1/8
7/8
1-1/8
7/8
32
34
11
11
15
16
2-1/2
4
47
24
51
11-1/2 11-1/2
11-1/2
15
16
16
2-1/2
3
4
63
32
68
11-1/2 11-1/2
11-1/2
15
16
16
2-1/2
3
4
18
21
Full
Half
7689
9405
13.98
17.1
30
30
53.7
65.5
30
15
2
4**
2
7-8
7-8
1-3/8
1-3/8
7/8-1-1/8
7/8-1-1/8
23
54
16
13/15
16
23-1/2
8
4
8
34
81
16
13/15
16
23-1/2
8
4
8
45
16
16
8
4
† 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 se-
lection program for correct nozzle selection.
** May be field manifolded for either face split or row split.
†† Not available on 39LB units.
41
10
Full
Qtr
Half
Full
4372
7.95
20
45.8
20
10
20
2
2
2
10
5
10
1-3/8
1-1/8
1-3/8
7/8
7/8
7/8
18
40
20
18
11
18
18
16
18
4
5
5
26
59
30
13
11-1/2
13
18-1/2
16
18-1/2
4
5
5
34
78
39
13
11-1/2
13
18-1/2
16
18-1/2
4
5
5
25
Full
Half
Full
11,275
20.5
36
65.5
30
18
36
4**
2
4**
7-8
9
9
1-3/8
1-3/8
1-3/8
7/8-1-1/8
1-1/8
1-1/8
26
54
26
16
16
15
16
26
15
4
8
4
40
40
16
16-3/4
16
16-3/4
4
4
54
54
16
16-3/4
16
16-3/4
4
4
12
Half
Full
5126
9.32
20
53.7
10
20
2
2
5
10
1-1/8
1-3/8
7/8
7/8
45
23
11
18
16
18
5
5
67
34
11-1/2
13
16
18-1/2
5
5
89
45
11-1/2
13
16
-
5
5
Double
72
4**
18
1-5/8
1-3/8
26
16
16
8

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