Counterflo Heaters (Hastings Industries Inc.)

counterflo Models 275, 3009 3259 350, 400 and 450

Specification Data

	ITEM *		MODEL
	ITEM *		275	300	325	350	400	450
	OUTPUT - MBH		2,750	3@000	3,250	3500	4,000	4,500
HEAT	FUEL CONSUMPTION	GAS (1000 BTU/CU. FT) - CFH	3,438	3,750	4,062	4,375	5,000	5,625
	FUEL CONSUMPTION	OIL (140 MBH/GAL.) GPH	24.6	26.8	29.0	31.2	35.7	40.2
	COMBUSTION CHAMBER (400 SERIES S.S.)	GAUGE	14	14	14	14	14	14
		SURFACE AREA - SO. FT,	195	195	195	240	240	240
		VOLUME - CU. FT	181	181	181	245	245	245
	SECONDARY HEAT EXCH.	COLLECTION BOX GAUGE	10	10	10	10	10	10
		NO. OF TUBES (4" DIA.)	22	22	22	22	22	22
		SURFACE AREA - SO. FT.	252	252	252	310	310	310
AIR	CAPACITY - CFM**		31,000	37,500	40,000	42,000	48,000	54,000
	TEMPERATURE RISE - ºF		82	74	75-	77	77	77
	NO. AND DIA. (IN,) OF FANS (EC, DIDW)		3-22	3-22	3-22	3-25	3-25	3-25
	MAIN FAN MOTOR (STD.) - HP		10	15	20	15	20	25
	DUCT FURNACE PRESSURE DROP (IN, W.C.) ^		.38	.55	.65	.75	1.00	1.20
MISC.	EXHAUSTER MOTOR HP (230160"3 GAS)		1	1	1	2	2	2
	RECOMMENDED STACK DIA. - IN.		16	16	16_	18	18	18
	CASING GAUGE		16	16	16	16	16	16
	SHIPPING WEIGHT UPRIGHT MODEL - LBS. ^		6,500	6,6251	6,750	7,025	7,055	7,205

* Data is based on standard units and norma conditions 1 00' TR Maximum. For non-standard units and/or app ication consult with coal representative or the factory,

** Based on standard air (70'F and 14.7 psi) with discharge nozz es or equivalent '/," W.C. TFSP Use Total External Static Pressure column that will overcome total intake hood '/a", birdscreen 1/8", discharge louver 1/4". Damper system resistance, Approximate pressure drop for component and accessory items, fi ter (dirty) resistance may be ignored.

^ Based on standard air capacity. Check factory for optimum application.

^ Approximate weight of basic unit with standard motor.

Fan Performance

TOTAL EXTERNAL STATIC PRESSURE (DUCT OUTLET) - IN. W.C.

MODEL	SCFM*	1/4		1/2		3/4		1		1-1/4		1-1/2
		BHP	MHP	BHP	MHP	BHP	MHP	BHP	MHP	BHP	MHP	BHP	MHP
CF-275 CF-300 CF-325	30,000	9.5	10	10.0	10	11.4	15	12.3	15	13.2+	15+	14.1+	15+
	31,000	10.0	10	11.2	15	12.2	15	13.0	15	14.0+	15+	14.8+	15+
	32,000	11.0	15	12.0	15	12.8	15	13.7+	15+	14.6+	15+	16.5+	20+
	33,000	11.8	15	12.8	15	13.6	15	14.3+	15+	16.0+	20+	18.5+	20+
	34,000	12.5	15	13.4	15	14.3	15	15.0+	15+	18.0+	20+	20.0+	20+
	35,000	13.2	15	14.0	15	15.0+	15+	17.4+	20+	20.0+	20+	22.5+	25+
	36,000	14.0	15	14.8	15	17.0+	20+	19.5+	20+	22.0+	25+	24.5+	25+
	37,000	14.7	15	16.5	20	19.0+	20+	21.5+	25+	24.0+	25+	26.5+	30+
	38,000	16.0	20	18.5+	20+	21.0+	25+	23.5+	25+	26.0+	30+	28.5+	30+
	39,000	18.0	20	20.5+	25+	23.0+	25+	25.0+	25+	28.0+	O+	-	-
	40,000	20.0	20	22.5+	25+	25.0+	25+	27.5+	30+	30.0+	30+	-	-
	41,000	22.0+	25+	24.5+	25+	27.0+	30+	29.5+	30+	-	-	-	-
	42,000	24.0+	25+	26.5+	30+	29.0+	30+	-	-	-	-	-	-
	43,000	27.0+	30+	28.5+	30+	-		-	-	-	-	-	-
	44,000	29.0+	30+	30.0+	30+	-		-	-	-	-	-	-
CF-350 CF-400 CF-450	42,000	13	15	15	15	17	20	20	20	23	25	96	30
	44,000	15	15	17	20	19	20	22	25	25	25	28	30
	45,000**	16	20	18	20	20	20	23	25	26	30	29	30
	46,000	17	20	19	20	21	25	24	25	27	30	30	30
	48,000	19	20	21	25	23	25	27	30	29	30	32	40
	50,000	21	25	23	25	25	25	29	30	32	40	35	40
	52,000	23	25	25	25	27	30	31	40	34	40	37	-
	54,000	25	25	27	30	30	30	34	40	37	40	-	-
	56,000	28	30	31	40	34	40	37	40	40	40	-	-
	58,000	30	30	33	40	37	40	39	40	-	-	-	-
	60,000	33	40	37	40	41	50	43	50	-	-	-	-
	62,000	36	40	40	40	44	50	47	50	-	-	-	-
	64,000	40	40	44	50	47	50	-	-	-	-	-	-
	66,000	44	50	47	50	-	-		-	-	-	-	-
	68,000	47	50	51	60	-	-	-	-	-	-	-	-
	70,000	50	50	-	-	-	-	-	-	-	-	-	-

*Stainless steel tubes are recommended for high air capacity with low burner output.

**Minimum CFM for Model 450.

+Requires heavy duty shaft and wheels. - Check Home Office for Price Add.

Counterflo Heaters - Page 7