Slant/Fin L-Series User Manual
®
HOT WATER SUPPLY AND RETURN HEADERS
PARTS LIST AND ASSEMBLY INSTRUCTIONS
L-Series: Oil-fired Modular Boilers
Header Parts List
43-2572
43-2573
Item Part No. 234 56 78910
1-1/2" Stub Header - 2 stub - 27" C-C (pkgd. separately) 43-0920 2–4 2– 42–4
1-1/2" Stub Header - 3 stub - 27" C-C (pkgd. separately) 43-0921 –2–24 2464
Flex Joint - 1-1/2" pipe 43-2023 244 68 810 12 12
Flex Joint - 3" pipe 41-1755 448 8812 12 12 16
Cast End Cap - 3/4" NPT 41-1780 111 11 1111
Cast End Cap - No tap 41-1753 111 11 1111
Nipple - 1-1/2" x 4" 43-0904 346 7810 11 12 14
Nipple - 1-1/2" x 15" 43-0923 234 56 78910
Nipple - 1-1/2" x 30" 43-0924 112 24 4566
Nipple - 1-1/2" x close 43-0927 234 56 78910
Square Nipple - 1-1/2" x 8" T.O.E. 43-0925 122 34 4566
Square Nipple - 1-1/2" x 34" T.O.E. 43-0926 122 46 5666
Union - 1-1/2" 902428071 224 44 6668
Tee - 1-1/2" 43-0917 234 56 78910
Bushing - 1-1/2" x 3/4" 902179321 23456 78910
Elbow - 1-1/2" 902454071 46810 12 14 16 18 20
Installation Instructions 43-0901 111 11 1111
Header Package Order Code
Number of Modules
Part No. 43-0901
Publication CH-40L
Printed in U.S.A. 906
FACTORY SUPPLY AND RETURN HEADER ASSEMBLY — OIL
1
1
/2'' X 8'' SQUARE NIPPLE
3'' RETURN HEADER
1
WITH 1
/2'' STUBS
(3 MODULE)
1
/2'' FLEX JOINT
1
(SEE DETAIL "A")
3'' FLEX JOINTS
(SEE DETAIL "A")
3'' RETURN HEADER
1
WITH 1
/2'' STUBS
(2 MODULE)
CAST END CAP
1
1
/2'' X 4'' NIPPLE
*Building piping must be rigidly secured so it cannot
move where connected to headers.
1
1
1
/2'' X 15'' NIPPLE
1
/2'' ELBOW
3'' FLEX JOINT
(SEE DETAIL "A")
3'' PIPE X 20''
(BY OTHERS)
1
1
/2'' UNION
1
/2'' PRESSURE
TEMPERATURE
GAUGE
3'' SUPPLY HEADER
1
WITH 1
/2'' STUBS
(2 MODULE)
1
/2'' X 11/2'' X 11/2'' TEE
1
*3'' BUILDIING PIPE
1
/2'' WELLS
CONTROL HEADER
1
/2'' x 1/2'' x 1/2''
3'' x
CONNECTION
* 3'' BUILDING
PIPING
(BY OTHERS)
1
1
/2'' X 34'' SQUARE NIPPLE
1
/2'' X 30'' NIPPLE
1
CAST END CAP
3
WITH
/4'' TAPPING.
SUPPLY OR RETURN.
FOR USE WITH LWCO.
1
1
/2'' X 4'' NIPPLE
3'' SUPPLY HEADER
1
WITH 1
/2'' STUBS
(3 MODULE)
NOTE:
Shown reverse return (Preferred). For direct
return, header assembly piping connections
may be made at the same end of the boiler
bank, not as shown. Some governing agencies do not allow compression type couplings.
Consult your local code requirements.
1
/2'' ELBOW
1
3
1
/2'' X CLOSE NIPPLE
1
/4'' DRAIN VALVE
1
/2'' X 3/4'' BUSHING
1
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