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7
Fig. 5 —
28MZ (Steam Coil) Nomenclature
28MZ H 1 26 F B T 074 A X N –
28MZ
– IDT Steam
Coil Position
H
– Horizontal
V
– Vertical
Rows
1
– 1 Row
2
– 2 Row
Tubes In Face*
If position 11 = S
If position 11 = T
1 in.
5/8 in.
39M Unit
Size L M B S L M B S
Circuiting
F
– Full
Fin Material
Fins Per Inch
Casing Material
B
– AL 6 GALV.
E
– AL 9 GALV.
C
– AL 12 GALV.
H
– AL 6 ST. STL.
L
– AL 9 ST. STL.
J
– AL 12 ST. STL.
P
– CU 6 ST. STL.
S
– CU 9 ST. STL.
Q
– CU 12 ST. STL.
Coating
N
– Non-Coated
E
– E-Coated
Header Style
A
– MPT Std
Header Note:
Pos. 11 (Type S )
Supply = 2 1/2 in. MPT
Condensate = 2 1/2 in. MPT
Pos. 11 (Type T )
(1) Row 10-28TF = 2 in. MPT (Supply and Return)
29-40
= 2 1/2 in. MPT (Supply)
2 in. MPT (Return)
(2) Row 10-28TF = 2 1/2 in. MPT (Supply and Return)
29-40TF = 3 in. MPT (Supply)
= 2 1/2 in. MPT (Return)
TF-Tubes in face
Tube Size and Copper Wall
S
– 1 in. O.D. x .030 Wall Outer Tube
5/8 in. O.D. x .020 Wall Inner Tube
T
– 5/8 in. O.D. x .035 Wall Outer Tube
3/8 in. O.D. x .020 Wall Inner Tube
–
–
Coil Revision
X
– Always
39M Unit
Size DBTS†
(in.)
03W
8
5
5
N/A
16
10
10
N/A
06W
8
6
5
5
16
12
10
10
07T
13
11
8
7
26
22
16
14
08W
9
6
5
5
18
12
11
10
09T
14
12
10
8
28
24
20
16
10W
9
6
5
5
18
12
11
10
11T
16
14
10
9
32
28
20
18
12T
17
14
11
9
34
28
22
18
12W
11
9
8
5
22
18
16
10
14W
11
10
8
5
22
20
16
10
16T
20
16
13
10
40
32
26
20
17W
12
10
9
6
24
20
19
12
18T
21
17
13
11
42
34
26
22
21W
15
13
11
7
30
26
22
14
22T
22
18
14
12
44
36
28
24
25T
12/12
20
16
13
24/24
40
32
26
25W
15
13
11
7
30
26
22
14
30T
12/12
20
16
13
N/A
N/A
N/A N/A
30W
15
13
11
7
N/A
N/A
N/A N/A
35T
12/13
21
17
14
N/A
N/A
N/A N/A
36W
18
15
12
10
N/A
N/A
N/A N/A
37T
15/15 13/13
20
16
N/A
N/A
N/A N/A
40W
10/10
18
15
10
N/A
N/A
N/A N/A
42T
15/15 13/13 10/10
16
N/A
N/A
N/A N/A
50W
11/12
18
15
11
N/A
N/A
N/A N/A
51T
15/15 13/13 10/10
15
N/A
N/A
N/A N/A
58T
17/17 14/15 11/11
18
N/A
N/A
N/A N/A
61W
14/14 11/12
18
14
N/A
N/A
N/A N/A
72W
16/16 13/13 10/11 N/A
N/A
N/A
N/A N/A
85W
16/16 13/13 10/11 N/A
N/A
N/A
N/A N/A
96W
18/18 14/15 12/12 N/A
N/A
N/A
N/A N/A
110W
18/18 14/15 12/12 N/A
N/A
N/A
N/A N/A
03W
20
06W
34
07T
26
08W
40
09T
29
10W
52
11T
32
12T
35
12W
52
14W
59
16T
38
17W
65
18T
41
21W
65
22T
47
25T
49
25W
74
30T
59
30W
92
35T
67
36W
96
37T
59
40W
96
42T
67
50W
104
51T
81
58T
81
61W
104
72W
107
85W
126
96W
126
110W
144
*Multiple values indicated that two coils must be ordered.
†Distance between tube sheets.
LEGEND
B
—
Bypass
L
—
Large
M
—
Medium
S
—
Small