Bryant 581J specifications Heating Rating Table Natural GAS & Propane, Units, Efficiency

TABLE 4 – HEATING RATING TABLE - NATURAL GAS & PROPANE

				AL/SS HEAT EXCHANGER				TEMP RISE		THERMAL	AFUE
Units		Gas Heat								EFFICIENCY
			INPUT / OUTPUT		INPUT / OUTPUT			(DEG F)			(%)
										(%)
			STAGE 1 (MBH)		STAGE 2 (MBH)
		LOW	50	/ 41	72	/	59	25	--- 55	82%	81%
	04	MED	82	/ 66	115 / 93			55	--- 85	80%	80%
Phase		HIGH		---		---			---	---	---
		LOW	50	/ 41	72	/	59	25	--- 55	82%	81%
Single	05	MED	82	/ 66	115 / 93			35	--- 65	81%	80%
		HIGH	120 / 96		150	/	120	50	--- 80	80%	80%
		LOW	50	/ 41	72	/	59	20	--- 55	82%	81%
	06	MED	82	/ 66	115 / 93			30	--- 65	81%	80%
		HIGH	120 / 96		150	/	120	40	--- 80	80%	80%
		LOW	50	/ 41	72	/	59	25	--- 55	82%	N/A
	04	MED	82	/ 66	115 / 93			55	--- 85	80%	N/A
		HIGH		---		---			---	---	---
		LOW	50	/ 41	72	/	59	25	--- 55	82%	N/A
	05	MED	82	/ 66	115 / 93			35	--- 65	81%	N/A
		HIGH	120 / 96		150	/	120	50	--- 80	80%	N/A
Phase		LOW	50	/ 41	72	/	59	20	--- 55	82%	N/A
	06	MED	82	/ 66	115 / 93			30	--- 65	81%	N/A
		HIGH	120 / 96		150	/	120	40	--- 80	80%	N/A
Three		LOW	50	/ 41	72	/	59	15	--- 55	82%	N/A
	07	MED	90	/ 73	125	/	103	20	--- 50	82%	N/A
		HIGH	105 / 84		150	/	120	30	--- 60	81%	N/A
		LOW	90	/ 73	125	/	103	20	--- 50	82%	N/A
	08	MED	120 / 98		180	/	148	35	--- 65	82%	N/A
		HIGH	180	/ 147	224	/	184	45	--- 75	82%	N/A
		LOW	90	/ 73	125	/	103	20	--- 50	82%	N/A
	09	MED	120 / 98		180	/	148	30	--- 65	82%	N/A
		HIGH	180	/ 147	224	/	184	40	--- 75	82%	N/A

NOTES:

Heat ratings are for natural gas heat exchangers operated at or below 2000 ft (610 m). For information on Propane or alti- tudes above 2000 ft (610 m), see the Application Data section of this book. Accessory Propane/High Altitude kits are also available.

In the USA the input rating for altitudes above 2000 ft (610m) must be derated by 4% for each 1000 ft (305 m) above sea level. In Canada, the input rating must be derated by 10% for altitudes of 2000 ft (610 m) to 4500 ft (1372 m) above sea level.

581J

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