PB Heat Gas/Oil Boilers manual Return Connections, @ 20F Output Rise, Size Header

PIPE THE BOILER

Figure 3.2: LC/LCE Boiler Piping

Table 3.1: Boiler Supply and Return Connections & Recommended Header Sizing

	I=B=R	GPM		Suggested Supply				Return Connections
				Connections – Top					Rear and Side
Model	Gross
		@ 20°F
	Output	Rise	Number		Size	Header	Number		Size	Header
	MBH
					(Inches)	(Inches)			(Inches)	(Inches)
LC-04	547	55	1		2-1/2	2-1/2	1		2-1/2	2-1/2
LC-05R	649	65	1		2-1/2	2-1/2	1		2-1/2	2-1/2
LC-05	707	71	1		2-1/2	2-1/2	1		2-1/2	2-1/2
LC-06	868	87	1		3	3	1		3	3
LC-07	1029	103	1		3	3	1		3	3
LC-08	1189	119	2		3	3	2		3	3
LC-09	1350	135	2		3	3	2		3	3
LC-10	1511	151	2		4	4	2		3	4
LC-11	1672	167	2		4	4	2		3	4
LC-12	1832	183	2		4	4	2		3	4
LCE-13	1966	197	2		4	4	2		3	4
LCE-14	2125	213	2		4	4	2		3	4
LCE-15	2284	228	2		4	4	2		3	4
LCE-16	2444	244	2		4	4	2		3	4
LCE-17	2603	260	2		4	5	2		3	5
LCE-18	2763	276	2		4	5	2		3	5
LCE-19	2922	292	2		4	5	2		3	5
LCE-20	3082	308	2		4	5	2		3	5
LCE-21	3256	326	2		4	5	3		3	5
LCE-22	3430	343	2		4	5	3		3	5
LCE-23	3604	360	2		4	5	3		3	5
LCE-24	3777	378	2		4	5	3		3	5

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