41
Table 11 — Direct-Expansion Circuiting Data
Medium 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
AHUBuilder
®
software selection program for correct nozzle selection.
39M UNIT SIZE 03W 06W 07T 08W 09T 10W
CIRCUITING TYPE
Quarter Half Quarter Half Full Quarter Half Full Double Quarter Half Full Quarter Half Full Double Quarter Half Full
Airflow (cfm) at 500 fpm
1,215 2,066 2,708 2,778 3,524 3,611
Total Face Area (sq ft)
2.4 4.1 5.4 5.6 7.0 7.2
Tubes in Face
14 14 14 14 14 24 24 24 24 16 16 16 28 28 28 28 16 16 16
Tube Length (in.)
20 20 34 34 34 26 26 26 26 40 40 40 29 29 29 29 52 52 52
No. of Circuits - Total
4 7 4 7 14 6 12 24 48 4 8 16 7 14 28 56 4 8 16
4-Row Coil
Face Split Coils
No. of TXVs
2 2 2 2 -— 2
2 2 — 2 2 — 2 2 2 — 2 2 —
Suction 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 1-5/8 -— 7/8 7/8 —
Distributor Connections (in.
OD)
7/8 7/8 7/8 7/8 -— 7/8 7/8 1-3/8
—
7/8 7/8
—
7/8 7/8 1-3/8
—
7/8 7/8
Distributor Nozzle Size
G-1.5
G-2.5/
G-2
G-1.5
G-2.5/
G-2
-— G-2 G-4 C-12
—
G-1.5 G-2.5
—
G-2.5/
G-2
G-6 C-15
—
G-1.
5 G-2.5 —
Intertwined Row Split Coils
No. of TXVs
2 2 2 2 -— 2
2 2
—
2 2
—
2 2 2
—
2 2 —
Suction 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 1-5/8
—
7/8 7/8 —
Distributor Connections (in.
OD)
7/8 7/8 7/8 7/8 -— 7/8 7/8 1-3/8
—
7/8 7/8
—
7/8 7/8 1-3/8
—
7/8 7/8 —
Distributor Nozzle Size
G-1.5
G-2.5/
G-2
G-1.5
G-2.5/
G-2
-— G-2 G-4 C-12
—
G-1.5 G-2.5
—
G-2.5/
G-2
G-6 C-15
—
G-1.5 G-2.5 —
Single Circuit Coils
No. of TXVs
1 1 1 1
—
1 1
— —
1 1
—
1 1
— —
1 1 —
Suction Connections (in. OD)
7/8 1-1/8 7/8 1-1/8
—
1-1/8 1-3/8
— —
7/8 1-1/8
—
1-1/8 1-5/8
— —
7/8 1-1/8 —
Distributor Connections (in.
OD)
7/8 7/8 7/8 7/8
—
7/8 1-3/8
— —
7/8 7/8
—
7/8 1-3/8
— —
7/8 7/8 —
Distributor Nozzle Size
G-2.5 G-6 G-2.5 G-6
—
G-4 C-12
— —
G-2.5 G-8
—
G-6 C-15
— —
G-2.5 G-8 —
6-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 7/
8 7/8 7/8
— —
1-1/8 1-3/8
—
7/8 7/8
— —
1-1/8 1-5/8
—
7/8 7/8 —
Distributor Connections (in.
OD)
7/8 7/8 7/8 7/8
— —
7/8 1-3/8
—
7/8 7/8
— —
7/8 1-3/8
—
7/8 7/8 —
Distributor Nozzle Size
G-1.5
G-2.5/
G-2
G-1.5
G-2.5/
G-2
— —
G-4 C-12
—
G-1.5 G-2.5
— —
G-6 C-15
—
G-1.5 G-2.5 —
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 7/8 7/8 7/8
— —
1-1/8 1-3/8
—
7/8 7/8
— —
1-1/8 1-5/8
—
7/8 7/8 —
Distribu
tor Connections (in.
OD)
7/8 7/8 7/8 7/8
— —
7/8 1-3/8
—
7/8 7/8
— —
7/8 1-3/8
—
7/8 7/8 —
Distributor Nozzle Size
G-1.5
G-2.5/
G-2
G-1.5
G-2.5/
G-2
— —
G-4 C-12
—
G-1.5 G-2.5
— —
G-6 C-15
—
G-1.5 G-2.5 —
Single Circuit Coils
No. of TXVs
1 1 1 1
— —
1
— —
1 1
— —
1
— —
1 1 —
Suction Connections (in. OD)
7/8 1-1/8 7/8 1-1/8
— —
1-3/8
— —
7/8 1-1/8
— —
1-5/8
— —
7/8 1-1/8 —
Distributor Connections (in.
OD)
7/8 7/8 7/8 7/8
— —
1-3/8
— —
7/8 7/8
— —
1-3/8
— —
7/8 7/8 —
Distributor Nozzle Size
G-2.5 G-6 G-2.5 G-6
— —
C-12
— —
G-2.5 G-8
— —
C-15
— —
G-2.5 G-8 —
8-Row Coil
Face Split Coils
No. of TXVs
—
2
—
2 2
—
2 2 4
—
2 2
—
2 2 4 — 2 2
Suction 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 1-5/8 1-5/8 — 7/8 1-1/8
Distributor Connections (in.
OD)
—
7/8
—
7/8 7/8
—
7/8 1-3/8 1-3/8
—
7/8 7/8
—
7/8 1-3/8 1-3/8 — 7/8 7/8
Distributor Nozzle Size
—
G-2.5/
G-2
—
G-2.5/
G-2
G-6
—
G-4 C-12 C-12
—
G-2.5 G-8
—
G-6 C-15 C-15 — G-2.5 G-8
Intertwined Row Split Coils
No. of TXVs
—
2
—
2 2
—
2 2 4
—
2 2
—
2 2 4 — 2 2
Suction 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 1-5/8 1-5/8 — 7/8 1-1/8
Distributor Connections (in.
OD)
—
7/8
—
7/8 7/8
—
7/8 1-3/8 1-3/8
—
7/8 7/8
—
7/8 1-3/8 1-3/8 — 7/8 7/8
Distributor Nozzle Size
—
G-2.5/
G-2
—
G-2.5/
G-2
G-6 — G-4 C-12 C-12 — G-2.5 G-8 — G-6 C-15 C-15 — G-2.5 G-8
Single Circui
t Coils
No. of TXVs
1 1
—
1
— —
1
— — —
1
— —
1
— —
-
— 1 —
Suction Connections (in. OD)
7/8 1-1/8
—
1-1/8
— —
1-3/8
— — —
1-1/8
— —
1-5/8
— —
— 1-1/8 —
Distributor Connections (in.
OD)
7/8 7/8
—
7/8
— —
1-3/8
— — —
7/8
— —
1-3/8
— —
— 7/8 —
Distributor Nozzle Size
G-2.5 G-6
—
G-6
— —
C-12
— — —
G-8
— —
C-15
— —
— G-8 —