Weil-McLain 88 manual Ratings, Part No. 550-100-068/0308

Boiler manual: • Installation • Start-Up • Maintenance • Parts

Ratings

Boiler		I=B=R		Gross	Net I=B=R ratings			Boiler	Combustion		Thermal		Net	Flue	Positive	Flue	Boiler	Packaged
model		burner		I=B=R				H.P.	efficiency		efficiency		firebox	gas	pressure	outlet	water	boiler
number		capacity		output									volume	volume	in firebox	diameter	content	weight
		Light oil	Gas	MBH	Steam	Steam	Water		Oil	Gas	Oil	Gas	Cubic	CFM	Inches	Inches	Gallons	Pounds
		GPH	MBH		Sq. Ft	MBH	MBH						feet		W.C.
Notes:		2, 3	2, 4	5, 6	8	8	8	—	—	—	—	—	—	7	9	—	—	—
1, 10
488R		6.9	996	827	2,583	620	719	24.7	87.5	84.8	85.6	83.1	11.02	376	0.60	10	109	2860
488		7.0	1,010	839	2,621	629	730	25.1	87.5	84.8	85.6	83.1	11.02	370	0.60	10	109	2860
588		9.4	1,356	1,126	3,521	845	979	33.6	87.0	84.4	85.6	83.1	14.45	507	0.63	10	132	3340
688		11.8	1,701	1,413	4,469	1,072	1,229	42.2	86.7	84.1	85.6	83.1	18.08	639	0.65	10	155	3820
788		14.2	2,046	1,700	5,463	1,311	1,478	50.8	86.5	83.9	85.6	83.1	21.61	772	0.67	12	178	4345
888		16.6	2,382	1,987	6,427	1,543	1,728	59.4	86.3	83.7	85.6	83.1	25.14	906	0.69	12	201	4925
988R		17.2	2,482	2,062	6,671	1,601	1,793	61.6	86.2	83.7	85.6	83.1	28.67	1,031	0.70	14	224	5600
988		18.8	2,737	2,274	7,358	1,766	1,977	67.9	86.2	83.7	85.6	83.1	28.67	954	0.70	14	224	5600
1088R		20.0	2,887	2,399	7,763	1,863	2,086	71.7	86.2	83.6	85.6	83.1	32.20	1,184	0.71	14	247	6130
1088		21.5	3,082	2,561	8,283	1,988	2,227	76.5	86.2	83.6	85.6	83.1	32.20	1,101	0.71	14	247	6130
1188		23.5	3,428	2,848	9,213	2,211	2,477	85.1	86.1	83.5	85.7	83.1	35.76	1,299	0.72	14	270	6695
1288		26.0	3,773	3,135	10,147	2,434	2,726	93.7	86.0	83.5	85.7	83.1	39.26	1,443	0.73	14	293	7260
1388		28.5	4,119	3,422	11,071	2,657	2,976	102.2	86.0	84.4	85.7	83.1	42.79	1,588	0.74	14	316	7890
1488		31.0	4,464	3,709	12,000	2,880	3,225	110.8	86.0	83.4	85.7	83.1	46.32	1,735	0.75	16	339	8410
1588		33.0	4,809	3,996	12,925	3,102	3,475	119.4	85.9	83.3	85.7	83.1	49.85	1,854	0.76	16	362	9005
1688R		34.5	4,979	4,137	13,383	3,212	3,597	123.6	85.9	83.3	85.7	83.1	53.38	2,003	0.77	16	385	9525
1688		35.5	5,155	4,283	13,854	3,325	3,724	127.9	85.9	83.3	85.7	83.1	53.38	1,945	0.78	16	385	9525
1788		38.0	5,494	4,570	14,783	3,548	3,974	136.5	85.9	83.3	85.7	83.1	56.91	2,152	0.79	18 *	408	9780
1888		40.5	5,845	4,857	15,713	3,771	4,123	145.1	85.9	83.3	85.7	83.1	60.44	2,303	0.80	18 *	431	10775
1.	See below to specify complete model number.									5.	Gross I=B=R ratings have been determined under the I=B=R provision
											governing forced draft boiler-burner units.
										6.	Based on average water temperature of 170°F in heat distributing
											units.
										7. Flue gas volume at outlet temperature.
										8.	Net I=B=R ratings are based on net installed radiation of sufficient
											quantity for the requirements of the building.
											Nothing need be added for normal piping and pick-up.
											Water ratings are based on a piping and pick-up allowance of 1.15.
											Steam ratings are based on the following allowances: 488 – 588 =
											1.333; 688 = 1.323; 788 = 1.301; 888 = 1.289; 988 – 1888 = 1.288.
											An additional allowance should be made for gravity hot water systems
2. Burner input based on maximum of 2,000 feet altitude. For other											or for unusual piping and pick-up loads.
	altitudes, consult Weil-McLain distributor/agent or sales office.										Consult local Weil-McLain distributor/agent or sales office.
3.	No. 2 fuel oil — Commercial Standard Spec CS75-56. Heating									9.	With 0.10" W.C. positive pressure at flue collar.
	value of oil = 140,000 Btu per gallon.
										10. Water boilers tested for 80 PSIG, ASME water working pressure.
4.	Gas pressure required at burner gas train inlet for rated burner
											Steam boilers tested for 15 PSIG, ASME steam working pressure.
	input; based on 1,000 Btu per cubic foot natural gas, specific
	gravity of 0.60. Refer to burner manual for required pressure.									*	Flue collar connection is oval, 16Z\," x 19M\,"

Part No. 550-100-068/0308 35