High Altitude Deration Chart, Natural GAS

035-16328-Rev002.C (0902)

HIGH ALTITUDE DERATION CHART

						NATURAL	GAS
		56,000--lnput			70,000--Input				77,000--Input			90,000--Input
Elevation	Odfice	Drill	Pa_ #	Odfce	Dnll	Pa_ #		Odfice	Ddll	Pa_ #	Odfice	Ddll	Pa_ #
	Dia.	Size		Dia.	Size			Odfice	Ddll		Odfice	Ddll
								Dia	Size		Dia.	Size
Sea Level								Dia	Size		Dia.	Size
Sea Level	0.136	29	9951-1361	0,154	23	9951--1541		0.161	20	9951--1611	0.180	15	9951-1801
2,000	0.136	29	9981--1361	0.149	25	9951--1491		0.157	22	9951-1571	0.177	16	9951--1771
3,000	0.128	30	9981--1281	0,149	25	9951--1491		0.157	22	9951-1571	0.173	17	9951--1731
4,000	0.128	30	9951--1281	0,147	26	9951-1471		0.154	23	9951=1541	0.173	17	9951--1731
5,000	0.128	30	9951-1281	0,144	27	9951-1441		0.152	24	9951-1521	0.169	18	9951--1691
6,000	0.128	30	9951-1281	0.144	27	9951-1441		0.149	25	9951--1491	0.166	19	9981--1661
7,000	0.129	31	9951--1291	0.140	28	9951--1401		0.147	26	9951--1471	0.161	20	9951-1611
8,000	0.120	31	9951-1201	0.136	29	9951--1361		0.144	27	9951--1441	0.161	20	9951--1611
9,000	0.120	31	9951_-1201	0.136	29	9951--1361		0.140	28	9951--1401	0.157	22	9951-1571
10,000	0.116	32	9951--1161	0.128	30	9951--1281		0.136	29	9951--1361	0.152	24	9951-1521
						PROPANE	GAS
		56,000--Input			70,000--Input				77,000--Input			90,000--Input
Elevation	Orifice	Ddll	Pa_ #	Odfice	Ddll	Pad#		Orifice	Drill	Pa_ #	Odfice	Ddll	Pa_ #
	Dia.	Size		Dia.	Size			Dia.	Size	Pa_ #	Dia.	Size	Pa_ #
Sea Level	0.082	48	9951--0821	0.093	42	9951-0931		0.098	40	9951_-0981	0.106	36	9951-1061
2,000	0.081	46	9951--0811	0.093	42	9951-0931		0.096	41	9981-0961	0.104	37	9951--1041
3,000	0.078	47	9951--0781	0.089	43	9951-0891		0.093	42	9951-0931	0.101	38	9951--1011
4,000	0.078	47	9951--0781	0.089	43	9951--0891		0.093	42	9951--0931	0.101	38	9951-1011
5,000	0.078	47	9951--0781	0.089	43	995%-0891		0.093	42	9951--0931	0.099	39	9981--0991
6,000	0.076	48	9981--0761	0.086	44	9951--0861		0089	43	9951--0891	0.098	40	9951--0981
7,000	0.076	48	9951--0761	0.086	44	9951--0861		0.089	43	9951--0891	0.096	41	9951-0961
8,000	0,073	49	9951--0731	0.082	45	9951--0821		0.086	44	9951--0861	0.096	41	9951-0961
9,000	0.073	49	9951--0731	0.081	46	9951-0511		8.086	44	9951--0881	0.093	42	9951--0931
10,000	0.070	50	9951--0731	0.078	47	9951--0781		0.082	48	9951-6821	0.059	43	9981-0891

Table shows 4% Input Reduction per 1,000 feet Elevation.	For Canadian high altitude (2000 - 4500 feet), reduce gas
Reference Source: NFPA No. 54, ANSI Z 223.1, National	manifold pressure to 3.0" W.C. for natural gas, 9,0"
Fuel Gas Code.	W.C. for Propane gas.

Unitary Products Group

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HIGH ALTITUDE DERATION CHART

NATURAL

GAS

0.173

0.173

PROPANE

GAS

Odfice

9951-0961

DGPA056ABTA, DGAAO77BDTA, DGAHO77BBSA, DGPA070ABTA, DGPA090ABTA specifications