47
Table 11 —
Direct-Expansion Circuiting Data (cont)
Large Face Area Coils
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
03W
06W
07T
08W
09T
CIRCUITING TYPE
Quarter
Half
Quarter
Half
Full
Quarter
Half
Full
Double
Quarter
Half
Full
Quarter
Half
Full
Double
Airflow (cfm) at 500 fpm
1,736
2,951
3,837
3,819
4,531
Total Face Area (sq ft)
3.5
5.9
7.7
7.6
9.1
Tubes in Face
20
20
20
20
20
34
34
34
34
22
22
22
36
36
36
36
Tube Length (in.)
20
20
34
34
34
26
26
26
26
40
40
40
29
29
29
29
No. of Circuits - Total
4
10
4
10
20
9
17
34
68
6
11
22
9
18
36
72
4-Row Coil
Face Split Coils
No. of TXVs
2
2
2
2
—
2
2
2
—
2
2
—
2
2
2
—
Suction Connections (in. OD)
7
/
8
1-1/8
7
/
8
1-1/8
—
1-1/8
1-3/8
1-5/8
—
7
/
8
1-1/8
-
—
1-1/8
1-3/8
1-5/8
—
Distributor Connections (in. OD)
7
/
8
7
/
8
7
/
8
7
/
8
—
7/8
1-1/8
1-3/8
—
7
/
8
7
/
8
—
7
/
8
1-1/8
1-3/8
—
Distributor Nozzle Size
G-1.5
G-3
G-1.5
G-3
—
G-3/G-2.5
E-8
C-17
—
G-2
G-4 / G-3
—
G-3 /G-2.
E-8
C-17
—
Intertwined Row Split Coils
No. of TXVs
2
2
2
2
—
2
2
2
—
2
2
-
—
2
2
2
—
Suction Connections (in. OD)
7
/
8
1-1/8
7
/
8
1-1/8
—
1-1/8
1-3/8
1-5/8
—
7
/
8
1-1/8
-
—
1-1/8
1-3/8
1-5/8
—
Distributor Connections (in. OD)
7
/
8
7
/
8
7
/
8
7
/
8
—
7
/
8
1-1/8
1-3/8
—
7
/
8
7
/
8
—
7
/
8
1-1/8
1-3/8
—
Distributor Nozzle Size
G-1.5
G-3
G-1.5
G-3
—
G-3/G-2.5
E-8
C-17
—
G-2
G-4/G-3
—
G-3/G-2.5
E-8
C-17
—
Single Circuit Coils
No. of TXVs
1
1
1
1
—
1
—
—
—
1
1
-
—
1
—
—
—
Suction Connections (in. OD)
1-1/8
1-3/8
1-1/8
1-3/8
—
1-3/8
—
—
—
1-1/8
1-3/8
—
1-3/8
—
—
—
Distributor Connections (in. OD)
7
/
8
1-1/8
7
/
8
1-1/8
—
1-1/8
—
—
—
7
/
8
1-1/8
—
1-1/8
—
—
—
Distributor Nozzle Size
G-3
E-10
G-3
E-10
—
E-8
—
—
—
G-4
E-12
—
E-8
—
—
—
6-Row Coil
Face Split Coils
No. of TXVs
2
2
2
2
—
—
2
2
—
2
2
2
—
2
2
—
Suction Connections (in. OD)
7
/
8
1-1/8
7
/
8
1-1/8
—
—
1-3/8
1-5/8
—
7
/
8
1-1/8
1-3/8
—
1-3/8
1-5/8
—
Distributor Connections (in. OD)
7
/
8
7
/
8
7
/
8
7
/
8
—
—
1-1/8
1-3/8
—
7
/
8
7
/
8
1-1/8
—
1-1/8
1-3/8
—
Distributor Nozzle Size
G-1.5
G-3
G-1.5
G-3
—
—
E-8
C-17
—
G-2
G-4 / G-3
E-12
—
E-8
C-17
—
Intertwined Row Split Coils
No. of TXVs
2
2
2
2
—
—
2
2
—
2
2
2
—
2
2
—
Suction Connections (in. OD)
7
/
8
1-1/8
7
/
8
1-1/8
—
—
1-3/8
1-5/8
—
7
/
8
1-1/8
1-3/8
—
1-3/8
1-5/8
—
Distributor Connections (in. OD)
7
/
8
7
/
8
7
/
8
7
/
8
—
—
1-1/8
1-3/8
—
7
/
8
7
/
8
1-1/8
—
1-1/8
1-3/8
—
Distributor Nozzle Size
G-1.5
G-3
G-1.5
G-3
—
—
E-8
C-17
—
G-2
G-4 / G-3
E-12
—
E-8
C-17
—
Single Circuit Coils
No. of TXVs
1
1
1
1
—
—
—
—
—
1
1
—
—
—
—
—
Suction Connections (in. OD)
1-1/8
1-3/8
1-1/8
1-3/8
—
—
—
—
—
1-1/8
1-3/8
—
—
—
—
—
Distributor Connections (in. OD)
7
/
8
1-1/8
7
/
8
1-1/8
—
—
—
—
—
7
/
8
1-1/8
—
—
—
—
—
Distributor Nozzle Size
G-3
E-10
G-3
E-10
—
—
—
—
—
G-4
E-12
—
—
—
—
—
8-Row Coil
Face Split Coils
No. of TXVs
—
2
—
2
2
—
2
2
4
—
2
2
—
2
2
4
Suction Connections (in. OD)
—
1-1/8
—
1-1/8
1-3/8
—
1-3/8
1-5/8
1-5/8
—
1-1/8
1-3/8
—
1-3/8
1-5/8
1-5/8
Distributor Connections (in. OD)
—
7
/
8
—
7
/
8
1-1/8
—
1-1/8
1-3/8
1-3/8
—
7
/
8
1-1/8
—
1-1/8
1-3/8
1-3/8
Distributor Nozzle Size
—
G-3
—
G-3
E-10
—
E-8
C-17
C-17
—
G-4 / G-3
E-12
—
E-8
C-17
C-17
Intertwined Row Split Coils
No. of TXVs
—
2
—
2
2
—
2
2
4
—
2
2
—
2
2
4
Suction Connections (in. OD)
—
1-1/8
—
1-1/8
1-3/8
—
1-3/8
1-5/8
1-5/8
—
1-1/8
1-3/8
—
1-3/8
1-5/8
1-5/8
Distributor Connections (in. OD)
—
7/8
—
7
/
8
1-1/8
—
1-1/8
1-3/8
1-3/8
—
7
/
8
1-1/8
—
1-1/8
1-3/8
1-3/8
Distributor Nozzle Size
—
G-3
—
G-3
E-10
—
E-8
C-17
C-17
—
G-4 / G-3
E-12
—
E-8
C-17
C-17
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
—
1-1/8
—
—
—
—
—
—
1-1/8
—
—
—
—
—
Distributor Nozzle Size
—
E-10
—
E-10
—
—
—
—
—
—
E-12
—
—
—
—
—