44
Table 11 —
Direct-Expansion Circuiting Data (cont)
Medium 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 field-installed nozzles. Consult
AHU
Builder
®
software selection program for correct nozzle selection.
39M UNIT SIZE
30T
35T
36W
37T
40W
CIRCUITING TYPE
Half
Full
Double
Half
Full
Double
Full
Double
Half
Full
Double
Full
Double
Airflow (cfm) at 500 fpm
11,267
13,958
15,000
15,365
18,333
Total Face Area (sq ft)
22.5
27.9
30.0
30.7
36.7
Tubes in Face
44
44
44
24
24
24
24
24
24
36
36
30
30
30
30
30
30
44
44
Tube Length (in.)
59
59
59
67
67
67
67
67
67
104
104
59
59
59
59
59
59
96
96
No. of Circuits - Total
22
44
88
12
12
24
24
48
48
36
72
15
15
30
30
60
60
44
88
4-Row Coil
Upper Lower Upper Lower Upper
Lower
Upper
Lower
Upper Lower Upper Lower
Face Split Coils
No. of TXVs
2
4
—
2
2
2
2
—
—
2
—
2
2
2
2
—
—
4
—
Suction Connections (in. OD)
1-3/8
1-3/8
—
1-1/8
1-1/8
1-3/8
1-3/8
—
—
1-5/8
—
1-1/8
1-1/8
1-5/8
1-5/8
—
—
1-3/8
—
Distributor Connections (in. OD)
1-1/8
1-1/8
—
7/8
7/8
1-3/8
1-3/8
—
—
1-3/8
—
7/8
7/8
1-3/8
1-3/8
—
—
1-1/8
—
Distributor Nozzle Size
E-12
E-12
—
G-4
G-4
C-12
C-12
—
—
C-17
—
G-8/G-6 G-8/G-6 C-15
C-15
—
—
E-12
—
Intertwined Row Split Coils
No. of TXVs
2
4
—
2
2
2
2
—
—
2
—
2
2
2
2
—
—
4
—
Suction Connections (in. OD)
1-3/8
1-3/8
—
1-1/8
1-1/8
1-3/8
1-3/8
—
—
1-5/8
—
1-1/8
1-1/8
1-5/8
1-5/8
—
—
1-3/8
—
Distributor Connections (in. OD)
1-1/8
1-1/8
—
7/8
7/8
1-3/8
1-3/8
—
—
1-3/8
—
7/8
7/8
1-3/8
1-3/8
—
—
1-1/8
—
Distributor Nozzle Size
E-12
E-12
—
G-4
G-4
C-12
C-12
—
—
C-17
—
G-8/G-6 G-8/G-6 C-15
C-15
—
—
E-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
4
—
2
2
2
2
—
—
2
—
2
2
2
2
—
—
4
—
Suction Connections (in. OD)
1-3/8
1-3/8
—
1-1/8
1-1/8
1-3/8
1-3/8
—
—
1-5/8
—
1-1/8
1-1/8
1-5/8
1-5/8
—
—
1-3/8
—
Distributor Connections (in. OD)
1-1/8
1-1/8
—
7/8
7/8
1-3/8
1-3/8
—
—
1-3/8
—
7/8
7/8
1-3/8
1-3/8
—
—
1-1/8
—
Distributor Nozzle Size
E-12
E-12
—
G-4
G-4
C-12
C-12
—
—
C-17
—
G-8/G-6 G-8/G-6 C-15
C-15
—
—
E-12
—
Intertwined Row Split Coils
No. of TXVs
2
4
—
2
2
2
2
—
—
2
—
2
2
2
2
—
—
4
—
Suction Connections (in. OD)
1-3/8
1-3/8
—
1-1/8
1-1/8
1-3/8
1-3/8
—
—
1-5/8
—
1-1/8
1-1/8
1-5/8
1-5/8
—
—
1-3/8
—
Distributor Connections (in. OD)
1-1/8
1-1/8
—
7/8
7/8
1-3/8
1-3/8
—
—
1-3/8
—
7/8
7/8
1-3/8
1-3/8
—
—
1-1/8
—
Distributor Nozzle Size
E-12
E-12
—
G-4
G-4
C-12
C-12
—
—
C-17
—
G-8/G-6 G-8/ G-6 C-15
C-15
—
—
E-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
4
8
2
2
2
2
4
4
2
4
2
2
2
2
4
4
4
8
Suction Connections (in. OD)
1-3/8
1-3/8
1-3/8
1-1/8
1-1/8
1-3/8
1-3/8
1-3/8
1-3/8
1-5/8
1-5/8
1-1/8
1-1/8
1-5/8
1-5/8
1-5/8
1-5/8
1-3/8
1-3/8
Distributor Connections (in. OD)
1-1/8
1-1/8
1-1/8
7/8
7/8
1-3/8
1-3/8
1-3/8
1-3/8
1-3/8
1-3/8
7/8
7/8
1-3/8
1-3/8
1-3/8
1-3/8
1-1/8
1-1/8
Distributor Nozzle Size
E-12
E-12
E-12
G-4
G-4
C-12
C-12
C-12
C-12
C-17
C-17 G-8/G-6 G-8/G-6 C-15
C-15
C-15
C-15
E-12
E-12
Intertwined Row Split Coils
No. of TXVs
—
4
8
2
2
2
2
4
4
2
4
2
2
2
2
4
4
4
8
Suction Connections (in. OD)
—
1-3/8
1-3/8
1-1/8
1-1/8
1-3/8
1-3/8
1-3/8
1-3/8
1-5/8
1-5/8
1-1/8
1-1/8
1-5/8
1-5/8
1-5/8
1-5/8
1-3/8
1-3/8
Distributor Connections (in. OD)
—
1-1/8
1-1/8
7/8
7/8
1-3/8
1-3/8
1-3/8
1-3/8
1-3/8
1-3/8
7/8
7/8
1-3/8
1-3/8
1-3/8
1-3/8
1-1/8
1-1/8
Distributor Nozzle Size
—
E-12
E-12
G-4
G-4
C-12
C-12
C-12
C-12
C-17
C-17 G-8/G-6 G-8/G-6 C-15
C-15
C-15
C-15
E-12
E-12
Single Circuit Coils
No. of TXVs
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
Suction Connections (in. OD)
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
Distributor Connections (in. OD)
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
Distributor Nozzle Size
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—