52
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
AHUBui
lder
®
software selection program for correct nozzle selection.
39M UNIT SIZE 35T 36W 37T 40W
CIRCUITING TYPE
Half Full Double Full Double Half Full Double Full Double
Airflow (cfm) at 500 fpm
17,448 18,438 18,438 20,000
Total Face Area (sq ft)
34.9 36.9 36.9 40.0
Tubes in Face
30 30 30 30 30 30 44 44 36 36 36 36 36 36 24 24 24 24
Tube Length (in.)
67 67 67 67 67 67 59 59 59 59 59 59 59 59 96 96 96 96
No. of Circuits - Total
15 15 30 30 60 60 44 88 18 18 36 36 72 72 24 24 48 48
4-
Row Coil
U
pper Lower Upper Lower Upper Lower Upper Lower Upper Lower Upper Lower Upper Lower Upper Lower
Face Split Coils
No. of TXVs
2 2 2 2 — — 4 — 2 2 2 2 — — 2 2 — —
Suction Connections (in. OD)
1-1/8 1-1/8 1-5/8 1-5/8 — — 1-3/8 — 1-3/8 1-3/8 1-5/8 1-5/8 — — 1-3/8 1-3/8 — —
Distributor Connections (in. OD)
7/8 7/8 1-3/8 1-3/8 — — 1-1/8 — 1-1/8 1-1/8 1-3/8 1-3/8 — — 1-3/8 1-3/8 — —
Distributor Nozzle Size
G-8/G-6 G-8/G-6 C-15 C-15 —
— E-12 — E-8 E-8 C-17 C-17 — — C-12 C-12 — —
Int
ertwined Row Split Coils
No. of TXVs
2 2 2 2 — — 4 — 2 2 2 2 — — 2 2 — —
Suction Connections (in. OD)
1-1/8 1-1/8 1-5/8 1-5/8 — — 1-3/8 — 1-3/8 1-3/8 1-5/8 1-5/8 — — 1-3/8 1-3/8 — —
Distributor Connections (in. OD)
7/8 7/8 1-3/8 1-3/8 — — 1-1/8 — 1-1/8 1-1/8 1-3/8 1-3/8 — — 1-3/8 1-3/8 — —
Distributor Nozzle Size
G-8/G-6 G-8/G-6 C-15 C-15 — — E-12 — E-8 E-8 C-17 C-17 — — C-12 C-12 — —
Single C
ircuit 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 2 2 2 — — 4 — 2 2 2 2 — — 2 2 — —
Suction Connections (in. OD)
1-1/8 1-1/8 1-5/8 1-5/8 — — 1-3/8 — 1-3/8 1-3/8 1-5/8 1-5/8 — — 1-3/8 1-3/8 — —
Distributor Conne
ctions (in. OD)
7
/8 7/8 1-3/8 1-3/8 — — 1-1/8 — 1-1/8 1-1/8 1-3/8 1-3/8 — — 1-3/8 1-3/8 — —
Distributor Nozzle Size
G-8/G-6 G-8/G-6 C-15 C-15 — — E-12 — E-8 E-8 C-17 C-17 — — C-12 C-12 — —
Intertwined Row Split Coils
No. of TXVs
2 2 2 2 — — 4 — 2 2 2 2 — — 2 2 — —
Suction Connections (in. OD)
1-1/8 1-1/8 1-5/8 1-5/8 — — 1-3/8 — 1-3/8 1-3/8 1-5/8 1-5/8 — — 1-3/8 1-3/8 — —
Distributor Connections (in. OD)
7/8 7/8 1-3/8 1-3/8 — — 1-1/8 — 1-1/8 1
-1/8 1-3/8 1-3/8 — — 1-3/8 1-3/8 — —
Distribu
tor Nozzle Size
G-8/G-6 G-8/G-6 C-15 C-15 — — E-12 — E-8 E-8 C-17 C-17 — — C-12 C-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 2 2 2 4 4 4
8 2 2 2 2 4 4 2 2 4 4
Suc
tion Connections (in. OD)
1-1/8 1-1/8 1-5/8 1-5/8 1-5/8 1-5/8 1-3/8 1-3/8 1-3/8 1-3/8 1-5/8 1-5/8 1-5/8 1-5/8 1-3/8 1-3/8 1-3/8 1-3/8
Distributor Connections (in. OD)
7/8 7/8 1-3/8 1-3/8 1-3/8 1-3/8 1-1/8 1-1/8 1-1/8 1-1/8 1-3/8 1-3/8 1-3/8 1-3/8 1-3/8 1-3/8 1-3/8 1-3/8
Distributor Nozzle Size
G-8/G-6 G-8/G-6 C-15 C-15 C-15 C-15 E-12 E-12 E-8 E-8 C-17 C-17 C-17 C-17 C-12 C-12 C-12 C-12
Intertwined Row Split
Coils
No. of TXVs
2 2 2 2 4 4 4 8 2 2 2 2 4 4 2 2 4 4
Suction Connections (in. OD)
1-1/8 1-1/8 1-5/8 1-5/8 1-5/8 1-5/8 1-3/8 1-3/8 1-3/8 1-3/8 1-5/8 1-5/8 1-5/8 1-5/8 1-3/8 1-3/8 1-3/8 1-3/8
Distributor Connections (in. OD)
7/8 7/8 1-3/8 1-3/8 1-3/8 1-3/8 1-1/8 1-1/8 1-1/8 1-1/8 1-3/8 1-3/8 1-3/8 1-3/8 1-3/8 1-3/8 1-3/8 1-3/8
Distributor Nozzle Size
G-8/G-6 G-8/G-6 C-15 C-15 C-15 C-15 E-12 E-12 E-8 E-8 C-17 C-17 C-17 C-17 C-12 C-12 C-1
2 C-12
Singl
e Circuit Coils
No. of TXVs
— — — — — — — — — — — — — — — — — —
Suction Connections (in. OD)
— — — — — — — — — — — — — — — — — —
Distributor Connections (in. OD)
— — — — — — — — — — — — — — — — — —
Distributor Nozzle Size
— — — — — — — — — — — — — — — — — —