42
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 installed nozzles. Consult
AHU
Builder
®
software selection program for correct nozzle selection.
39M UNIT SIZE
11T
12W
12T
14W
16T
17W
18T
CIRCUITING TYPE
Half
Full
Double Quarter
Half
Full
Half
Full
Double Quarter
Half
Full
Half
Full
Half
Full
Half
Full
Airflow (cfm) at 500 fpm
4,444
4,965
4,861
6,146
5,938
6,771
7,474
Total Face Area (sq ft)
8.9
9.9
9.7
12.3
11.9
13.5
14.9
Tubes in Face
32
32
32
22
22
22
32
32
32
24
24
24
36
36
24
24
42
42
Tube Length (in.)
32
32
32
52
52
52
35
35
35
59
59
59
38
38
65
65
41
41
No. of Circuits - Total
16
32
64
6
11
22
16
32
64
6
12
24
18
36
12
24
21
42
4-Row Coil
Face Split Coils
No. of TXVs
2
2
-
—
2
2
2
2
2
-
—
2
2
2
2
2
2
2
2
4
Suction Connections (in. OD)
1-1/8
1-5/8
-
—
7/8
1-1/8
1-3/8
1-1/8
1-5/8
-
—
7/8
1-1/8
1-3/8
1-3/8
1-5/8
1-1/8
1-3/8
1-3/8
1-3/8
Distributor Connections (in. OD)
7/8
1-3/8
—
7/8
7/8
1-1/8
7/8
1-3/8
—
7/8
7/8
1-3/8
1-1/8
1-3/8
7/8
1-3/8
1-1/8
1-1/8
Distributor Nozzle Size
G-8
C-17
—
G-2
G-4/
G-3
E-12
G-8
C-17
—
G-2
G-4
C-12
E-8
C-17
G-4
C-12
E-12/
E-10
E-12/
E-10
Intertwined Row Split Coils
No. of TXVs
2
2
-
—
2
2
2
2
2
-
—
2
2
2
2
2
2
2
2
4
Suction Connections (in. OD)
1-1/8
1-5/8
-
—
7/8
1-1/8
1-3/8
1-1/8
1-5/8
-
—
7/8
1-1/8
1-3/8
1-3/8
1-5/8
1-1/8
1-3/8
1-3/8
1-3/8
Distributor Connections (in. OD)
7/8
1-3/8
—
7/8
7/8
1-1/8
7/8
1-3/8
—
7/8
7/8
1-3/8
1-1/8
1-3/8
7/8
1-3/8
1-1/8
1-1/8
Distributor Nozzle Size
G-8
C-17
—
G-2
G-4/
G-3
E-12
G-8
C-17
—
G-2
G-4
C-12
E-8
C-17
G-4
C-12
E-12/
E-10
E-12/
E-10
Single Circuit Coils
No. of TXVs
-
—
-
—
-
—
1
1
-
—
-
—
-
—
-
—
1
1
-
—
—
—
1
—
—
—
Suction Connections (in. OD)
#N
—
/A #N
—
/A #N
—
/A
1-1/8
1-3/8
#N
—
/A #N
—
/A #N
—
/A #N
—
/A
1-1/8
1-3/8
#N
—
/A
—
—
1-3/8
—
—
—
Distributor Connections (in. OD)
—
—
—
7/8
1-1/8
—
—
—
—
7/8
1-3/8
—
—
—
1-3/8
—
—
—
Distributor Nozzle Size
—
—
—
G-4
E-12
—
—
—
—
G-4
C-12
—
—
—
C-12
—
—
—
6-Row Coil
Face Split Coils
No. of TXVs
2
2
—
2
2
2
2
2
—
—
2
2
2
2
2
2
2
4
Suction Connections (in. OD)
1-1/8
1-5/8
—
7/8
1-1/8
1-3/8
1-1/8
1-5/8
—
—
1-1/8
1-3/8
1-3/8
1-5/8
1-1/8
1-3/8
1-3/8
1-3/8
Distributor Connections (in. OD)
7/8
1-3/8
—
7/8
7/8
1-1/8
7/8
1-3/8
—
—
7/8
1-3/8
1-1/8
1-3/8
7/8
1-3/8
1-1/8
1-1/8
Distributor Nozzle Size
G-8
C-17
—
G-2
G-4/
G-3
E-12
G-8
C-17
—
—
G-4
C-12
E-8
C-17
G-4
C-12
E-12/
E-10
E-12/
E-10
Intertwined Row Split Coils
No. of TXVs
2
2
-
—
2
2
2
2
2
-
—
-
—
2
2
2
2
2
2
2
4
Suction Connections (in. OD)
1-1/8
1-5/8
-
—
7/8
1-1/8
1-3/8
1-1/8
1-5/8
-
—
-
—
1-1/8
1-3/8
1-3/8
1-5/8
1-1/8
1-3/8
1-3/8
1-3/8
Distributor Connections (in. OD)
7/8
1-3/8
—
7/8
7/8
1-1/8
7/8
1-3/8
—
—
7/8
1-3/8
1-1/8
1-3/8
7/8
1-3/8
1-1/8
1-1/8
Distributor Nozzle Size
G-8
C-17
—
G-2
G-4/
G-3
E-12
G-8
C-17
—
—
G-4
C-12
E-8
C-17
G-4
C-12
E-12/
E-10
E-12/
E-10
Single Circuit Coils
No. of TXVs
-
—
-
—
-
—
1
1
-
—
-
—
-
—
-
—
-
—
1
-
—
—
—
1
—
—
—
Suction Connections (in. OD)
#N
—
/A #N
—
/A #N
—
/A
1-1/8
1-3/8
#N
—
/A #N
—
/A #N
—
/A #N
—
/A #N
—
/A
1-3/8
#N
—
/A
—
—
1-3/8
—
—
—
Distributor Connections (in. OD)
—
—
—
7/8
1-1/8
—
—
—
—
—
1-3/8
—
—
—
1-3/8
—
—
—
Distributor Nozzle Size
—
—
—
G-4
E-12
—
—
—
—
—
C-12
—
—
—
C-12
—
—
—
8-Row Coil
Face Split Coils
No. of TXVs
2
2
4
—
-
2
2
2
2
4
—
2
2
2
2
2
2
2
4
Suction Connections (in. OD)
1-1/8
1-5/8
1-5/8
—
1-1/8
1-3/8
1-1/8
1-5/8
1-5/8
—
1-1/8
1-3/8
1-3/8
1-5/8
1-1/8
1-3/8
1-3/8
1-3/8
Distributor Connections (in. OD)
7/8
1-3/8
1-3/8
—
7/8
1-1/8
7/8
1-3/8
1-3/8
—
7/8
1-3/8
1-1/8
1-3/8
7/8
1-3/8
1-1/8
1-1/8
Distributor Nozzle Size
G-8
C-17
C-17
—
G-4/
G-3
E-12
G-8
C-17
C-17
—
G-4
C-12
E-8
C-17
G-4
C-12
E-12/
E-10
E-12/
E-10
Intertwined Row Split Coils
No. of TXVs
2
2
4
-
—
2
2
2
2
4
—
2
2
2
2
2
2
2
4
Suction Connections (in. OD)
1-1/8
1-5/8
1-5/8
-
—
1-1/8
1-3/8
1-1/8
1-5/8
1-5/8
—
1-1/8
1-3/8
1-3/8
1-5/8
1-1/8
1-3/8
1-3/8
1-3/8
Distributor Connections (in. OD)
7/8
1-3/8
1-3/8
—
7/8
1-1/8
7/8
1-3/8
1-3/8
—
7/8
1-3/8
1-1/8
1-3/8
7/8
1-3/8
1-1/8
1-1/8
Distributor Nozzle Size
G-8
C-17
C-17
—
G-4/
G-3
E-12
G-8
C-17
C-17
—
G-4
C-12
E-8
C-17
G-4
C-12
E-12/
E-10
E-12/
E-10
Single Circuit Coils
No. of TXVs
-
—
-
—
—
—
1
—
—
—
—
—
1
—
—
—
1
—
—
—
Suction Connections (in. OD)
—
—
—
—
1-3/8
—
—
—
—
—
1-3/8
—
—
—
1-3/8
—
—
—
Distributor Connections (in. OD)
—
—
—
—
1-1/8
—
—
—
—
—
1-3/8
—
—
—
1-3/8
—
—
—
Distributor Nozzle Size
—
—
—
—
E-12
—
—
—
—
—
C-12
—
—
—
C-12
—
—
—