Bryant 310AAV instruction manual Specific Gravity of Natural GAS Altitude Range Heat Value

310AAV

Table 15–Orifice Size* and Manifold Pressure (In. W.C.) for Gas Input Rate (Continued)

(Tabulated data based on 22,000 btuh per burner, derated 4 percent for each 1000 ft. (305 M) above sea level)

		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
		(BTU/CU FT.)	No.	Pressure	No.	Pressure	No.	Pressure	No.	Pressure
		725	43	3.4	43	3.5	43	3.6	43	3.7
		750	43	3.2	43	3.3	43	3.4	43	3.5
	5001 to
		775	43	3.0	43	3.1	43	3.2	43	3.3
	6000
		800	43	2.8	43	2.9	43	3.0	43	3.1
U.S.A.	(1524
		825	43	2.6	43	2.7	43	2.8	43	2.9
	to
	1829)	850	43	2.5	43	2.5	43	2.6	43	2.7
		875	43	2.3	43	2.4	43	2.5	43	2.6
		900	43	2.2	43	2.3	43	2.3	43	2.4
		675	43	3.4	43	3.5	43	3.6	43	3.7
		700	43	3.1	43	3.3	43	3.4	43	3.5
	6001 to
		725	43	2.9	43	3.0	43	3.1	43	3.2
	7000
		750	43	2.7	43	2.8	43	2.9	43	3.0
U.S.A.	(1829
		775	43	2.6	43	2.7	43	2.7	43	2.8
	to
	2134)	800	43	2.4	43	2.5	43	2.6	43	2.7
		825	43	2.3	43	2.3	43	2.4	43	2.5
		850	43	2.1	43	2.2	43	2.3	43	2.4
		650	43	3.1	43	3.2	43	3.4	43	3.5
		675	43	2.9	43	3.0	43	3.1	43	3.2
	7001 to
		700	43	2.7	43	2.8	43	2.9	43	3.0
	8000
		725	43	2.5	43	2.6	43	2.7	43	2.8
U.S.A.	(2134
		750	43	2.4	43	2.4	43	2.5	43	2.6
	to
	2438)	775	43	2.2	43	2.3	43	2.4	43	2.4
		800	43	2.1	43	2.1	43	2.2	43	2.3
		825	48	3.7	43	2.0	43	2.1	43	2.2
		625	43	2.9	43	3.0	43	3.1	43	3.2
	8001 to
		650	43	2.7	43	2.8	43	2.9	43	3.0
	9000
		675	43	2.5	43	2.6	43	2.7	43	2.8
U.S.A.	(2438
		700	43	2.3	43	2.4	43	2.5	43	2.6
	to
	2743)	725	43	2.2	43	2.2	43	2.3	43	2.4
		750	43	2.0	43	2.1	43	2.2	43	2.2
		600	43	2.7	43	2.8	43	2.9	43	3.0
	9001 to	625	43	2.5	43	2.6	43	2.6	43	2.7
	10,000	650	43	2.3	43	2.4	43	2.4	43	2.5
	(2743
U.S.A.		675	43	2.1	43	2.2	43	2.3	43	2.3
	to
		700	48	3.7	43	2.0	43	2.1	43	2.2
	3048)
		725	48	3.5	48	3.6	48	3.7	43	2.0
		775	48	3.6	48	3.7	43	2.0	43	2.1

* Orifice numbers 43 are factory installed.

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