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49
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
14W
16T
17W
CIRCUITING TYPE
Quarter
Half
Full
Quarter
Half
Full
Double
Half
Full
Double
Airflow (cfm) at 500 fpm
7,170
7,587
8,464
Total Face Area (sq ft)
14.3
15.2
16.9
Tubes in Face
28
28
28
22
24
22
24
22
24
22
24
30
30
30
Tube Length (in.)
59
59
59
38
38
38
38
38
38
38
38
65
65
65
No. of Circuits - Total
7
14
28
6
6
11
12
22
24
44
48
15
30
60
4-Row Coil
Upper
Lower
Upper
Lower
Upper
Lower
Upper
Lower
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
1-5/8
7/8
7/8
1-1/8
1-1/8
1-3/8
1-3/8
—
—
1-1/8
1-5/8
—
Distributor Connections (in. OD)
7/8
7/8
1-3/8
7/8
7/8
7/8
7/8
1-1/8
1-3/8
—
—
7/8
1-3/8
—
Distributor Nozzle Size
G-2.5/G-2
G-6
C-15
G-2
G-2
G-4/G-3
G-4
E-12
C-12
—
—
G-8/G-6
C-15
—
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
1-5/8
7/8
7/8
1-1/8
1-1/8
1-3/8
1-3/8
—
—
1-1/8
1-5/8
—
Distributor Connections (in. OD)
7/8
7/8
1-3/8
7/8
7/8
7/8
7/8
1-1/8
1-3/8
—
—
7/8
1-3/8
—
Distributor Nozzle Size
G-2.5/G-2
G-6
C-15
G-2
G-2
G-4/G-3
G-4
E-12
C-12
—
—
G-8/G-6
C-15
—
Single Circuit Coils
No. of TXVs
1
1
—
1
1
1
1
—
—
—
—
1
—
—
Suction Connections (in. OD)
1-1/8
1-5/8
—
1-1/8
1-1/8
1-3/8
1-3/8
—
—
—
—
1-5/8
—
—
Distributor Connections (in. OD)
7/8
1-3/8
—
7/8
7/8
1-1/8
1-3/8
—
—
—
—
1-3/8
—
—
Distributor Nozzle Size
G-6
C-15
—
G-4
G-4
E-12
C-12
—
—
—
—
C-15
—
—
6-Row Coil
Face Split Coils
No. of TXVs
—
2
2
—
—
2
2
2
2
—
—
2
2
—
Suction Connections (in. OD)
—
1-1/8
1-5/8
—
—
1-1/8
1-1/8
1-3/8
1-3/8
—
—
1-1/8
1-5/8
—
Distributor Connections (in. OD)
—
7/8
1-3/8
—
—
7/8
7/8
1-1/8
1-3/8
—
—
7/8
1-3/8
—
Distributor Nozzle Size
—
G-6
C-15
—
—
G-4 / G-3
G-4
E-12
C-12
—
—
G-8 / G-6
C-15
—
Intertwined Row Split Coils
No. of TXVs
—
2
2
—
—
2
2
2
2
—
—
2
2
—
Suction Connections (in. OD)
—
1-1/8
1-5/8
—
—
1-1/8
1-1/8
1-3/8
1-3/8
—
—
1-1/8
1-5/8
—
Distributor Connections (in. OD)
—
7/8
1-3/8
—
—
7/8
7/8
1-1/8
1-3/8
—
—
7/8
1-3/8
—
Distributor Nozzle Size
—
G-6
C-15
—
—
G-4 / G-3
G-4
E-12
C-12
—
—
G-8 / G-6
C-15
—
Single Circuit Coils
No. of TXVs
—
1
—
—
—
1
1
—
—
—
—
1
—
—
Suction Connections (in. OD)
—
1-5/8
—
—
—
1-3/8
1-3/8
—
—
—
—
1-5/8
—
—
Distributor Connections (in. OD)
—
1-3/8
—
—
—
1-1/8
1-3/8
—
—
—
—
1-3/8
—
—
Distributor Nozzle Size
—
C-15
—
—
—
E-12
C-12
—
—
—
—
C-15
—
—
8-Row Coil
Face Split Coils
No. of TXVs
—
2
2
—
—
2
2
2
2
4
4
2
2
4
Suction Connections (in. OD)
—
1-1/8
1-5/8
—
—
1-1/8
1-1/8
1-3/8
1-3/8
1-3/8
1-3/8
1-1/8
1-5/8
1-5/8
Distributor Connections (in. OD)
—
7/8
1-3/8
—
—
7/8
7/8
1-1/8
1-3/8
1-1/8
1-3/8
7/8
1-3/8
1-3/8
Distributor Nozzle Size
—
G-6
C-15
—
—
G-4 / G-3
G-4
E-12
C-12
E-12
C-12
G-8 / G-6
C-15
C-15
Intertwined Row Split Coils
No. of TXVs
—
2
2
—
—
2
2
2
2
4
4
2
2
4
Suction Connections (in. OD)
—
1-1/8
1-5/8
—
—
1-1/8
1-1/8
1-3/8
1-3/8
1-3/8
1-3/8
1-1/8
1-5/8
1-5/8
Distributor Connections (in. OD)
—
7/8
1-3/8
—
—
7/8
7/8
1-1/8
1-3/8
1-1/8
1-3/8
7/8
1-3/8
1-3/8
Distributor Nozzle Size
—
G-6
C-15
—
—
G-4 / G-3
G-4
E-12
C-12
E-12
C-12
G-8 / G-6
C-15
C-15
Single Circuit Coils
No. of TXVs
—
1
—
—
—
—
—
—
—
—
—
1
—
—
Suction Connections (in. OD)
—
1-5/8
—
—
—
—
—
—
—
—
—
1-5/8
—
—
Distributor Connections (in. OD)
—
1-3/8
—
—
—
—
—
—
—
—
—
1-3/8
—
—
Distributor Nozzle Size
—
C-15
—
—
—
—
—
—
—
—
—
C-15
—
—