Bryant 315AAV instruction manual AT Altitude

Table 15 - Orifice Size and Manifold Pressure (In. W.C.) for Gas Input Rate (Con’t.)

(Tabulated Data Based on 21,000 Btuh High-Heat/14,500 Btuh for Low-Heat Per Burner, Derated 4 Percent for Each 1000 Ft.

(305 M) Above Sea level)

			AVG. GAS				SPECIFIC GRAVITY OF NATURAL GAS
			HEAT VALUE
ALTITUDE RANGE					0.58			0.60			0.62			0.64
	FT. (M)		AT ALTITUDE	Orifice		Manifold	Orifice		Manifold	Orifice		Manifold	Orifice		Manifold
			(BTUH/CU			Pressure			Pressure			Pressure			Pressure
				No.			No.			No.			No.
			FT.)			High/Low			High/Low			High/Low			High/Low
			725	44		3.5/1.7	43		3.2/1.5	43		3.3/1.6	43		3.4/1.6
		5001 to	750	44		3.3/1.6	44		3.4/1.6	44		3.5/1.7	43		3.2/1.5
			775	45		3.7/1.8	44		3.2/1.5	44		3.3/1.6	44		3.4/1.6
		6000
USA			800	46		3.7/1.8	46		3.8/1.8	45		3.8/1.8	44		3.2/1.5
		(1524 to	825	46		3.5/1.7	46		3.6/1.7	46		3.7/1.8	46		3.8/1.8
		1829)	850	47		3.7/1.8	47		3.8/1.8	46		3.5/1.7	46		3.6/1.7
			875	47		3.5/1.7	47		3.6/1.7	47		3.7/1.8	46		3.4/1.6
			900	48		3.8/1.8	47		3.4/1.6	47		3.5/1.7	47		3.7/1.7
			AVG. GAS				SPECIFIC GRAVITY OF NATURAL GAS
ALTITUDE RANGE			HEAT VALUE		0.58			0.60			0.62			0.64
	FT. (M)		AT ALTITUDE	Orifice		Manifold	Orifice		Manifold	Orifice		Manifold	Orifice		Manifold
						Pressure			Pressure			Pressure			Pressure
			(BTUH/CU FT.)	No.			No.			No.			No.
						High/Low			High/Low			High/Low			High/Low
			675	44		3.5/1.7	43		3.2/1.5	43		3.3/1.6	43		3.4/1.6
		6001 to	700	44		3.3/1.6	44		3.4/1.6	44		3.5/1.7	43		3.2/1.5
			725	45		3.7/1.8	45		3.8/1.8	44		3.3/1.6	44		3.4/1.6
USA		7000	750	46		3.6/1.7	46		3.8/1.8	45		3.7/1.8	45		3.8/1.8
		(1829 to	775	46		3.4/1.6	46		3.5/1.7	46		3.6/1.7	46		3.8/1.8
		2134)	800	47		3.6/1.7	47		3.8/1.8	46		3.4/1.6	46		3.5/1.7
			825	47		3.4/1.6	47		3.5/1.7	47		3.6/1.7	47		3.8/1.8
			850	48		3.7/1.7	48		3.8/1.8	47		3.4/1.6	47		3.5/1.7
			AVG. GAS				SPECIFIC GRAVITY OF NATURAL GAS
ALTITUDE RANGE			HEAT VALUE		0.58			0.60			0.62			0.64
	FT. (M)		AT ALTITUDE	Orifice		Manifold	Orifice		Manifold	Orifice		Manifold	Orifice		Manifold
						Pressure			Pressure			Pressure			Pressure
			(BTUH/CU FT.)	No.			No.			No.			No.
						High/Low			High/Low			High/Low			High/Low
			650	44		3.3/1.6	44		3.4/1.6	44		3.5/1.7	43		3.2/1.5
		7001 to	675	45		3.7/1.8	45		3.8/1.8	44		3.3/1.6	44		3.4/1.6
			700	46		3.6/1.7	46		3.7/1.8	46		3.8/1.8	45		3.8/1.8
		8000
USA			725	47		3.8/1.8	46		3.5/1.7	46		3.6/1.7	46		3.7/1.8
		(2134 to	750	47		3.5/1.7	47		3.7/1.8	47		3.8/1.8	46		3.5/1.6
		2438)	775	48		3.8/1.8	47		3.4/1.6	47		3.6/1.7	47		3.7/1.7
			800	48		3.6/1.7	48		3.7/1.8	48		3.8/1.8	47		3.4/1.6
			825	48		3.3/1.6	48		3.5/1.6	48		3.6/1.7	48		3.7/1.8
			AVG. GAS				SPECIFIC GRAVITY OF NATURAL GAS
ALTITUDE RANGE					0.58			0.60			0.62			0.64
			HEAT VALUE
				Orifice		Manifold	Orifice		Manifold	Orifice		Manifold	Orifice		Manifold
	FT. (M)		AT ALTITUDE
						Pressure			Pressure			Pressure			Pressure
			(BTUH/CU FT.)	No.			No.			No.			No.
						High/Low			High/Low			High/Low			High/Low
			625	45	3.7/1.8		45	3.8/1.8		44	3.3/1.6		44	3.4/1.6
		8001 to	650	46	3.6/1.7		46	3.7/1.8		46	3.8/1.8		45	3.8/1.8
			675	47	3.8/1.8		46	3.4/1.6		46	3.5/1.7		46	3.7/1.7
	9000
USA			700	47	3.5/1.7		47	3.6/1.7		47	3.7/1.8		46	3.4/1.6
		(2438 to
			725	48	3.7/1.8		48	3.8/1.8		47	3.5/1.7		47	3.6/1.7
	2743)
			750	48	3.5/1.7		48	3.6/1.7		48	3.7/1.8		48	3.8/1.8
			775	49	3.8/1.8		48	3.4/1.6		48	3.5/1.7		48	3.6/1.7
		9001 to	600	46	3.6/1.7		46	3.7/1.8		46	3.8/1.8		45	3.7/1.8
			625	47	3.7/1.8		47	3.8/1.8		46	3.5/1.7		46	3.6/1.7
	10,000
USA			650	47	3.4/1.6		47	3.6/1.7		47	3.7/1.8		47	3.8/1.8
		(2743 to	675	48	3.6/1.7		48	3.8/1.8		47	3.4/1.6		47	3.5/1.7
	3048)		700	48	3.4/1.6		48	3.5/1.7		48	3.6/1.7		48	3.7/1.8
			725	49	3.7/1.8		49	3.8/1.8		48	3.4/1.6		48	3.5/1.7

* Orifice numbers 43 are factory installed

315AAV

45