Lennox International Inc G50UH-48C-135, G50UH-48C-110 Serving a Single Category I Appliance

TABLE 4

Capacity of Type B Double-Wall Vents with Single-Wall Metal Connectors

Serving a Single Category I Appliance

				Vent and Connector Diameter - D (inches)
Height	Lateral		3 Inch		4 Inch		5 Inch		6 Inch
H	L
(feet)	(feet)			Appliance	Input Rating	in Thousands	of Btu Per Hour
		MIN	MAX	MIN	MAX	MIN	MAX	MIN	MAX
	0	38	77	59	151	85	249	126	373
6	2	39	51	60	96	85	156	123	231
	4	NR	NR	74	92	102	152	146	225
	6	NR	NR	83	89	114	147	163	220
	0	37	83	58	164	83	273	123	412
	2	39	56	59	108	83	176	121	261
8	5	NR	NR	77	102	107	168	151	252
	8	NR	NR	90	95	122	161	175	243
	0	37	87	57	174	82	293	120	444
10	2	39	61	59	117	82	193	119	287
	5	52	56	76	111	105	185	148	277
	10	NR	NR	97	100	132	171	188	261
	0	36	93	56	190	80	325	116	499
	2	38	69	57	136	80	225	115	337
15	5	51	63	75	128	102	216	144	326
	10	NR	NR	95	116	128	201	182	308
	15	NR	NR	NR	NR	158	186	220	290
	0	35	96	54	200	78	346	114	537
	2	37	74	56	148	78	248	113	375
	5	50	68	73	140	100	239	141	363
20	10	NR	NR	93	129	125	223	177	344
	15	NR	NR	NR	NR	155	208	216	325
	20	NR	NR	NR	NR	186	192	254	306
	0	34	99	53	211	76	372	110	584
	2	37	80	55	164	76	281	109	429
	5	49	74	72	157	98	271	136	417
30	10	NR	NR	91	144	122	255	171	397
	15	NR	NR	115	131	151	239	208	377
	20	NR	NR	NR	NR	181	223	246	357
	30	NR	NR	NR	NR	NR	NR	NR	NR

NOTE - Single appliance venting configurations with zero lateral lengths are assumed to have no elbows in the vent system. For all other vent configurations, the vent system is assumed to have two 90 ° elbows. For each additional 90 ° elbow or equivalent (for example two 45 °

elbows equal one 90 ° elbow) beyond two, the maximum capacity listed in the venting table should be reduced by 10 percent (0.90 x maxi- mum listed capacity).

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