52
Table 11 —
Direct-Expansion Circuiting Data (cont)
Large Face Area Coils (cont)
LEGEND
TXV —
Thermostatic Expansion Valve (Field Supplied)
*When 2 nozzle sizes are listed, the smaller nozzle should be located on the upper distributor.
NOTE: Factory-supplied distributors have factory-selected nozzle sizes as shown. If necessary,
replace factory-supplied nozzles with field-supplied and installed nozzles. Consult
AHU
Builder
®
software selection program for correct nozzle selection.
39M UNIT SIZE
35T
36W
37T
40W
CIRCUITING TYPE
Half
Full
Double
Full
Double
Half
Full
Double
Full
Double
Airflow (cfm) at 500 fpm
17,448
18,438
18,438
20,000
Total Face Area (sq ft)
34.9
36.9
36.9
40.0
Tubes in Face
30
30
30
30
30
30
44
44
36
36
36
36
36
36
24
24
24
24
Tube Length (in.)
67
67
67
67
67
67
59
59
59
59
59
59
59
59
96
96
96
96
No. of Circuits - Total
15
15
30
30
60
60
44
88
18
18
36
36
72
72
24
24
48
48
4-Row Coil
Upper
Lower
Upper
Lower
Upper
Lower
Upper
Lower
Upper
Lower
Upper
Lower
Upper
Lower
Upper
Lower
Face Split Coils
No. of TXVs
2
2
2
2
—
—
4
—
2
2
2
2
—
—
2
2
—
—
Suction Connections (in. OD)
1-1/8
1-1/8
1-5/8
1-5/8
—
—
1-3/8
—
1-3/8
1-3/8
1-5/8
1-5/8
—
—
1-3/8
1-3/8
—
—
Distributor Connections (in. OD)
7/8
7/8
1-3/8
1-3/8
—
—
1-1/8
—
1-1/8
1-1/8
1-3/8
1-3/8
—
—
1-3/8
1-3/8
—
—
Distributor Nozzle Size
G-8/G-6 G-8/G-6 C-15
C-15
—
—
E-12
—
E-8
E-8
C-17
C-17
—
—
C-12
C-12
—
—
Intertwined Row Split Coils
No. of TXVs
2
2
2
2
—
—
4
—
2
2
2
2
—
—
2
2
—
—
Suction Connections (in. OD)
1-1/8
1-1/8
1-5/8
1-5/8
—
—
1-3/8
—
1-3/8
1-3/8
1-5/8
1-5/8
—
—
1-3/8
1-3/8
—
—
Distributor Connections (in. OD)
7/8
7/8
1-3/8
1-3/8
—
—
1-1/8
—
1-1/8
1-1/8
1-3/8
1-3/8
—
—
1-3/8
1-3/8
—
—
Distributor Nozzle Size
G-8/G-6 G-8/G-6 C-15
C-15
—
—
E-12
—
E-8
E-8
C-17
C-17
—
—
C-12
C-12
—
—
Single Circuit Coils
No. of TXVs
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
Suction Connections (in. OD)
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
Distributor Connections (in. OD)
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
Distributor Nozzle Size
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
6-Row Coil
Face Split Coils
No. of TXVs
2
2
2
2
—
—
4
—
2
2
2
2
—
—
2
2
—
—
Suction Connections (in. OD)
1-1/8
1-1/8
1-5/8
1-5/8
—
—
1-3/8
—
1-3/8
1-3/8
1-5/8
1-5/8
—
—
1-3/8
1-3/8
—
—
Distributor Connections (in. OD)
7/8
7/8
1-3/8
1-3/8
—
—
1-1/8
—
1-1/8
1-1/8
1-3/8
1-3/8
—
—
1-3/8
1-3/8
—
—
Distributor Nozzle Size
G-8/G-6 G-8/G-6 C-15
C-15
—
—
E-12
—
E-8
E-8
C-17
C-17
—
—
C-12
C-12
—
—
Intertwined Row Split Coils
No. of TXVs
2
2
2
2
—
—
4
—
2
2
2
2
—
—
2
2
—
—
Suction Connections (in. OD)
1-1/8
1-1/8
1-5/8
1-5/8
—
—
1-3/8
—
1-3/8
1-3/8
1-5/8
1-5/8
—
—
1-3/8
1-3/8
—
—
Distributor Connections (in. OD)
7/8
7/8
1-3/8
1-3/8
—
—
1-1/8
—
1-1/8
1-1/8
1-3/8
1-3/8
—
—
1-3/8
1-3/8
—
—
Distributor Nozzle Size
G-8/G-6 G-8/G-6 C-15
C-15
—
—
E-12
—
E-8
E-8
C-17
C-17
—
—
C-12
C-12
—
—
Single Circuit Coils
No. of TXVs
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
Suction Connections (in. OD)
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
Distributor Connections (in. OD)
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
Distributor Nozzle Size
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
8-Row Coil
Face Split Coils
No. of TXVs
2
2
2
2
4
4
4
8
2
2
2
2
4
4
2
2
4
4
Suction Connections (in. OD)
1-1/8
1-1/8
1-5/8
1-5/8
1-5/8
1-5/8
1-3/8
1-3/8
1-3/8
1-3/8
1-5/8
1-5/8
1-5/8
1-5/8
1-3/8
1-3/8
1-3/8
1-3/8
Distributor Connections (in. OD)
7/8
7/8
1-3/8
1-3/8
1-3/8
1-3/8
1-1/8
1-1/8
1-1/8
1-1/8
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 Nozzle Size
G-8/G-6 G-8/G-6 C-15
C-15
C-15
C-15
E-12
E-12
E-8
E-8
C-17
C-17
C-17
C-17
C-12
C-12
C-12
C-12
Intertwined Row Split Coils
No. of TXVs
2
2
2
2
4
4
4
8
2
2
2
2
4
4
2
2
4
4
Suction Connections (in. OD)
1-1/8
1-1/8
1-5/8
1-5/8
1-5/8
1-5/8
1-3/8
1-3/8
1-3/8
1-3/8
1-5/8
1-5/8
1-5/8
1-5/8
1-3/8
1-3/8
1-3/8
1-3/8
Distributor Connections (in. OD)
7/8
7/8
1-3/8
1-3/8
1-3/8
1-3/8
1-1/8
1-1/8
1-1/8
1-1/8
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 Nozzle Size
G-8/G-6 G-8/G-6 C-15
C-15
C-15
C-15
E-12
E-12
E-8
E-8
C-17
C-17
C-17
C-17
C-12
C-12
C-12
C-12
Single Circuit Coils
No. of TXVs
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
Suction Connections (in. OD)
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
Distributor Connections (in. OD)
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
Distributor Nozzle Size
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—