HOT WATER SUPPLY AND RETURN HEADERS
PARTS LIST AND ASSEMBLY INSTRUCTIONS
L-Series: Oil-fired Modular Boilers
Header Parts List
Item
1-1/2" Stub Header - 2 stub - 27" C-C
1-1/2" Stub Header - 3 stub - 27" C-C
Flex Joint - 1-1/2" pipe
Flex Joint - 3" pipe
Cast End Cap - 3/4" NPT
Cast End Cap - No tap
Nipple - 1-1/2" x 4"
Nipple - 1-1/2" x 15"
Nipple - 1-1/2" x 30"
Nipple - 1-1/2" x close
Square Nipple - 1-1/2" x 8" T.O.E.
Square Nipple - 1-1/2" x 34" T.O.E.
Union - 1-1/2"
Tee - 1-1/2"
Bushing - 1-1/2" x 3/4"
Elbow - 1-1/2"
Installation Instructions
Part No. 43-0901
®
Part No.
43-0920
(pkgd. separately)
43-0921
(pkgd. separately)
43-2023
41-1755
41-1780
41-1753
43-0904
43-0923
43-0924
43-0927
43-0925
43-0926
902428071
43-0917
902179321
902454071
43-0901
Header Package Order Code
Number of Modules
2
3
4
5
6
2
–
4
2
–
–
2
–
2
4
2
4
4
6
8
4
4
8
8
8
1
1
1
1
1
1
1
1
1
1
3
4
6
7
8
2
3
4
5
6
1
1
2
2
4
2
3
4
5
6
1
2
2
3
4
1
2
2
4
6
2
2
4
4
4
2
3
4
5
6
2
3
4
5
6
4
6
8
10
12
1
1
1
1
1
7
8
9
10
4
2
–
4
2
4
6
4
8
10
12
12
12
12
12
16
1
1
1
1
1
1
1
1
10
11
12
14
7
8
9
10
4
5
6
6
7
8
9
10
4
5
6
6
5
6
6
6
6
6
6
8
7
8
9
10
7
8
9
10
14
16
18
20
1
1
1
1
Publication CH-40L
Printed in U.S.A. 1003