Lennox International Inc G50UH-48B-090, G50UH-48C-110, G50UH-60D-135, G50UH-36C-110 Min Max

TABLE 3

Capacity of Type B Double-WallVents with Type B Double-Wall 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	0	78	0	152	0	251	0	375
	2	13	51	18	97	27	157	32	232
6	4	21	49	30	94	39	153	50	227
	6	25	46	36	91	47	149	59	223
	0	0	84	0	165	0	276	0	415
8	2	12	57	16	109	25	178	28	263
	5	23	53	32	103	42	171	53	255
	8	28	49	39	98	51	164	64	247
	0	0	88	0	175	0	295	0	447
	2	12	61	17	118	23	194	26	289
10	5	23	57	32	113	41	187	52	280
	10	30	51	41	104	54	176	67	267
	0	0	94	0	191	0	327	0	502
	2	11	69	15	136	20	226	22	339
15	5	22	65	30	130	39	219	49	330
	10	29	59	40	121	51	206	64	315
	15	35	53	48	112	61	195	76	301
	0	0	97	0	202	0	349	0	540
	2	10	75	14	149	18	250	20	377
	5	21	71	29	143	38	242	47	367
20	10	28	64	38	133	50	229	62	351
	15	34	58	46	124	59	217	73	337
	20	48	52	55	116	69	206	84	322
	0	0	100	0	213	0	374	0	587
	2	9	81	13	166	14	283	18	432
	5	21	77	28	160	36	275	45	421
30	10	27	70	37	150	48	262	59	405
	15	33	64	44	141	57	249	70	389
	20	56	58	53	132	66	237	80	374
	30	NR	NR	73	113	88	214	104	346

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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