Crown Boiler 24-07, 24-11, 24-10, 24-08, 24-12, 24-06, 24-05, 24-09, 24-03, 24-04 Boiler RATINGS/DATA

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TABLE I

BOILER RATINGS/DATA

(1)				(2)						(3)	(4)

			Net I=B=R Rating			Burner		Heating		Net	Pressure	Water		Boiler Weight
		Gross	Net I=B=R Rating			Burner		Surface		Net	Pressure	Content		w/ Water		Vent
Boiler	Horse-	Gross				Input		(Sq. Ft.)		Firebox	in	(Gal.)		(Lbs.)		Vent
Model	Power	Output								Volume	Firebox					Dia.
		(MBH)	Sq. Ft.	MBH	MBH	Oil	Gas	Steam	Water	(Cu.Ft.)	("W.C.)	Steam	Water	Steam	Water	(In.)
			Steam	Steam	Water	(GPH)	(MBH)

24-03	10.2	342	1071	257	297	3.05	438	34.2	37.0	3.2	.33	44.5	66.0	1439	1618	7

24-04	14.1	471	1471	353	410	4.10	594	48.6	54.3	4.8	.38	53.0	75.0	1811	1995	7

24-05	18.9	634	1983	476	551	5.50	792	63.0	71.5	6.4	.31	61.5	84.0	2184	2372	8

24-06	23.8	797	2492	598	693	6.90	990	77.5	88.8	7.9	.38	70.0	93.0	2557	2749	8

24-07	28.0	937	2929	703	815	8.10	1174	91.9	106.0	9.5	.36	78.5	102.0	2930	3126	8

24-08	32.5	1087	3396	815	945	9.40	1358	106.3	123.3	11.0	.35	87.0	111.0	3303	3503	10

24-09	39.3	1316	4146	995	1148	11.40	1641	120.7	140.5	12.6	.35	95.5	120.0	3676	3880	10

24-10	45.0	1505	4788	1149	1309	13.00	1867	135.1	157.8	14.2	.40	104.0	129.0	4048	4257	10

24-11	50.5	1690	5429	1303	1470	14.60	2093	149.5	175.0	15.7	.45	112.5	138.0	4421	4634	12

24-12	55.3	1852	5983	1436	1610	16.00	2320	164.0	192.3	17.3	.49	121.0	147.0	4794	5011	12

(1)Trim Sufﬁx: S = Steam Boiler, W = Water Boiler

Fuel Sufﬁx: N = Natural Gas, P = LP Gas, O = Oil

(2)I=B=R net ratings shown are based on piping and pick-up allowances which vary from 1.333 to 1.289 for steam and 1.15 for water. Consult manufacturer for installations having unusual piping and pick-up requirements, such as intermittent system operation, extensive piping systems, etc. The I=B=R burner capacity in GPH is based on oil having a heat value of 140,000 BTU per gallon.

(3)Firebox volume does not include added volume of 8” extended burner mounting plate (BMP). If 8” BMP is speciﬁed (refer to Figure 1), add 0.7 cu. ft. to volume listed above.

(4)Boiler ratings are based on 12.5% CO2 (oil) and 9.7% CO2 (natural gas), + .10” (inches) water column pressure at boiler ﬂue outlet. Ratings shown above apply at altitudes up to 1000 feet on oil and 2000 feet on gas.

For altitudes above those indicated, the ratings should be reduced at the rate of 4% for each 1000 feet above sea level. Maximum Allowable Working Pressure: Steam Boiler - 15 PSI, Water Boiler - 50 PSI

Standard Safety (Relief) Valve Set Pressure: Steam Boiler - 15 PSI, Water Boiler - 30 PSI

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Contents Series Page Important Information Read Carefully Page Page Table of Contents Table of Contents Section I General Information Boiler RATINGS/DATA Locate the Unit Section I General InformationChimney or Vent Boiler FoundationVents Faults & Suggestions Assembly of Sections Manual DRAW- UP Section II Cast Iron Block AssemblyNipple Gauge Series 24 Section Arrangement Draw-Up Rods Alternating Pattern Manual Draw-up Center Section Channel Block Position Partial Block Draw-Up Hydraulic Draw-Up of Sections Canopy with Rear Flue Outlet Damper Assembly Section III Installation InstructionsBare Boiler Assembly Avoid Breathing Fiber Particulates and Dust Left Side Canopy Intermediate Bracket Inspect ALL Boiler Seals Mount Rear Observation Port Cover Refer to FigureSeries 24 Jacket Assembly Boiler Models 24-03 thru Mount Burner Adapter Plate to Burner Mounting Plate Burner Mounting Plate Refer to Figures 16Purpose of Tappings Steam Boilers Steam Trim Steam Boilers Install Steam Trim This Is Intentionally Left Blank Purpose of Tappings Water Boilers Water Trim Water Boilers Install Water Trim Burner InstallationBoiler Piping Heating Applications Page Parallel Piping Conversion Recommendation 1 Use when Recommendation 2 Use when Recommendation 3 Use when Page Page Page BMounting Elevations M&M 150, 64 Float Low Water Cut-offs Schematic Tankless Heater Piping 24-08 24-09 CCW Open to System Return Temperature Control and ComponentsWater Boiler Pressure Relief Valve Hook-Up Typical Boiler Wiring with RTC Front Typical Boiler with RTC Return Sensor Rear Section IV Operating Instructions Always Inspect Installation BeforeStarting Burner Fill Heating System with WaterFlame Failure Boil MIN Delay Check Operation of High Limit Control Test ControlsBoiler and System Cleaning Steam Boiler Boiler and System Cleaning Water Boilers Oxygen Corrosion Frequent Water AdditionClean the Boiler Flueways Section V Service InstructionsMaintenance of LOW Water Cutoff Devices Operation General Maintenance ConsiderationsOIL Burners Section VI Burner SpecificationsSection VII Repair Parts & Carton Contents Series 24 Master Parts List Section VII Repair Parts Jacket Carton Bare Boiler Assembly Section Joiner Carton Assy Rear Target Wall Carton Standard Steam Trim Carton Assy RTC Carton with Outdoor Reset Tankless Coil Components Boiler Water Section Viii Appendix Page Mechanical Page Mechanical Electrical Page Page Page Page Page Page Page Page Series 24 Boiler Circulator Selection Taco 20F Differential Boiler Recirculation Grundfos Circulating Pump Way Boiler Recirculation Bell and Gossett Circulating Pump Way Boiler Recirculation Armstrong Circulating Pump Way Application Appendix C Valve and Actuator Mounting InstructionsService Record PN 980417 S24 12/05