6
Fig. 4 —
28MC, 28MH (
1
/
2
-in. Water Coil) Nomenclature
*Multiple values indicate that two coils must be ordered.
†Distance between tube sheets.
28MC V 6 20 F D A 020 A R N –
28MC
– 1/2 in. Chilled Water
28MH
– 1/2 in. Hot Water
Coil Position
H
– Horizontal
V
– Vertical
Rows
1
– 1 Row
2
– 2 Row
4
– 4 Row
6
– 6 Row
8
– 8 Row
0
– 10 Row
Fin Material
Fins Per Inch
Casing Material
A
– AL 8 GALV.
D
– AL 11 GALV.
F
– AL 14 GALV.
G
– AL 8 ST. STL.
K
– AL 11 ST. STL.
M
– AL 14 ST. STL.
N
– CU 8 ST. STL.
R
– CU 11 ST. STL.
T
– CU 14 ST. STL.
Coating
N
– Non-Coated
E
– E-Coated
Hand
R
– Right
L
– Left
Header Style
A
– MPT Std
B
– MPT Non-Ferrous
NOTE: If positions 7-8 are
≥
30,
then position 15 cannot = B.
Tube Wall and
Hairpin Type
1/2 in. O.D. Copper Tube
A
– .016 Std. Hairpin
B
– .025 Std. Hairpin
Revision Level
Circuiting
H
– Half Circuit
F
– Full Circuit
D
– Double Circuit
Tubes In Face 12 – 44*
39M Unit
Size L
M
B S
39M Unit
Size DBTS† (in.)
a39-4302
03W
06W
07T
08W
09T
10W
11T
12T
12W
14W
16T
17W
18T
21W
22T
25T
25W
30T
30W
35T
36W
37T
40W
42T
50W
51T
58T
61W
72W
85W
96W
110W
20
20
30
22
36
22
42
42
28
28
22/24
30
24/26
38
26/28
28/30
38
28/30
38
30/30
44
36/36
24/24
36/36
28/28
36/36
40/42
34/34
38/40
38/40
44/44
44/44
14
14
24
16
28
16
34
34
22
24
36
24
42
32
44
44
32
44
32
24/24
36
30/30
44
28/30
44
28/30
32/34
28/28
32/32
32/32
36/36
36/36
12
12
20
14
24
14
28
28
20
20
30
22
32
28
34
38
28
38
28
40
30
24/24
36
22/24
36
22/24
26/28
44
24/26
24/26
28/28
28/28
N/A
12
12
12
20
12
22
22
14
14
24
16
26
18
26
26
18
26
18
34
24
38
24
40
28
30
42
34
N/A
N/A
N/A
N/A
03W
06W
07T
08W
09T
10W
11T
12T
12W
14W
16T
17W
18T
21W
22T
25T
25W
30T
30W
35T
36W
37T
40W
42T
50W
51T
58T
61W
72W
85W
96W
110W
— 20
— 34
— 26
— 40
— 29
— 52
— 32
— 35
— 52
— 59
— 38
— 65
— 41
— 65
— 47
— 49
— 74
— 59
— 92
— 67
— 96
— 59
— 96
— 67
— 104
— 81
— 81
— 104
— 107
— 126
— 126
— 144
LEGEND
B
—
Bypass
L
—
Large
M
—
Medium
S
—
Small
