Goodman Mfg AMV8 Meter Time in Minutes and Seconds for Normal Input, GAS AT 0 2,000 Feet Altitude

1,000 Btu/ft3 is determined by-
																WARNING
Corrected Input = 90,000 - (6,000 X .04) X (90,000 / 1,000)
Corrected Input = 90,000 - (240 X 90)											POSSIBLE PROPERTY DAMAGE, PERSONAL INJURY OR DEATH MAY OCCUR IF
Corrected Input = 90,000 - 21,600
											THE CORRECT CONVERSION KITS ARE NOT INSTALLED. THE APPROPRIATE KITS
Corrected Input = 68,400
											MUST BE APPLIED TO INSURE SAFE AND PROPER FURNACE OPERATION. ALL
Using the orifices sized as shown in the table for 6,000 feet (#45),											CONVERSIONS MUST BE PERFORMED BY A QUALIFIED INSTALLER OR SERVICE
											AGENCY.
a meter time of 52.6 seconds is measured. The actual firing rate
of the furnace is											This unit		is	configured	for		natural gas.		The	appropriate
Input = 1,000 (heating value of the gas) X 3600 (constant) / 52.6											manufacturer’s propane gas conversion kit, must be applied for
(meter time for 1 ft3 of gas)											propane gas installations.				Refer to the “Propane Gas and/or
Input = 3,600,000 / 52.6											High Altitude Installations” section for details.
											Contact your distributor for a tabular listing of appropriate
Input = 68,400 Btu/h
											manufacturer’s kits for propane gas and/or high altitude installations.
METER TIME IN MINUTES AND SECONDS FOR NORMAL INPUT
											The indicated kits must be used to insure safe and proper furnace
	RATING OF FURNACES EQUIPPED FOR USE WITH NATURAL										operation.		All conversions must be performed by a qualified
		GAS AT 0 - 2,000 FEET ALTITUDE									installer, or service agency.
											GAS PIPING CONNECTIONS
	INPUT	METER	HEAT		HEAT		HEAT		HEAT
		SIZE	VALUE		VALUE		VALUE		VALUE		GENERAL
	Btu/hr	FT3		900	1,000			1040	1,100
			MIN. SEC.		MIN.SEC		MIN. SEC.		MIN. SEC.							CAUTION
	40,000	1	1	21	1	30	1	33	1	39
		10	13	30	15	00	15	36	16	30		TO AVOID POSSIBLE UNSATISFACTORY OPERATION OR EQUIPMENT DAMAGE
	60,000	1	0	54	1	00	1	03	1	06
		10	9	00	10	10	10	24	11	00		DUE TO UNDERFIRING OF EQUIPMENT, USE THE PROPER SIZE OF
												NATURAL/PROPANE GAS PIPING NEEDED WHEN RUNNING PIPE FROM THE
	80,000	1	0	41	0	45	0	47	0	50
												METER/TANK TO THE FURNACE.
		10	6	45	7	30	7	48	8	15
	100,000	1	0	32	0	36	0	37	0	40	When sizing a trunk line, be sure to include all appliances which
		10	5	24	6	00	6	14	6	36	will operate simultaneously when sizing a trunk line.
	120,000	1	0	27	0	30	0	31	0	33	The gas piping supplying the furnace must be properly sized based
		10	4	30	5	00	5	12	5	30
											on the gas flow required, specific gravity of the gas, and length of
In Canada, the series and rating plate input for the furnace apply											the run. The gas line installation must comply with local codes, or
											in their absence, with the latest edition of the National Fuel Gas
to installations up to 2,000 feet (610m) above sea level. Kit HA-02											Code, NFPA 54/ANSI Z223.1.
for natural and LP gases is required to convert furnaces from
elevations of 2,000 to 4,500 feet (610m to 1,370m). Canadian														Natural Gas Capacity of Pipe
certification applies to the installations of up to 4,500 feet above														In Cubic Feet of Gas Per Hour (CFH)
sea level. Installations above 4,500 feet are subject to acceptance												Length of				Nominal Black Pipe Size
												Pipe in Feet		1/2"	3/4"			1"	1 1/4"		1 1/2"
by the local authorities having jurisdiction.
												10		132	278			520	1050		1600
Do not derate the furnace by adjusting the manifold pressure to a												20		92	190			350	730		1100
												30		73	152			285	590		980
lower pressure than specified on the furnace rating plate. The
												40		63	130			245	500		760
combination of the lower air density and a lower manifold pressure
												50		56	115			215	440		670
will prohibit the burner orifice from drawing the proper amount of
												60		50	105			195	400		610
air into the burner.			This may cause incomplete combustion,									70		46	96			180	370		560
flashback, and possible yellow tipping.												80		43	90			170	350		530
In some areas the gas supplier may artificially derate the gas in an												90		40	84			160	320		490
												100		38	79			150	305		460

effort to compensate for the effects of altitude. If the gas is artificially		(Pressure 0.5 psig or less and pressure drop of 0.3" W.C.; Based on
derated, the appropriate orifice size must be determined based		0.60 Specific Gravity Gas)
upon the BTU/ft3 content of the derated gas and the altitude. Refer		CFH =		BTUH Furnace Input
to the National Fuel Gas Code, NFPA 54/ANSI Z223.1, and
				Heating Value of Gas (BTU/Cubic Foot)
information provided by the gas supplier to determine the proper		To connect the furnace to the building’s gas piping, the installer
orifice size.
A different pressure switch may be required at high altitude		must supply a ground joint union, drip leg, manual shutoff valve,
		and line and fittings to connect to gas valve. In some cases, the
regardless of the BTU/ft3 content of the fuel used.	Contact your	installer may also need to supply a transition piece from 1/2" pipe
distributor for a tabular listing of appropriate altitude ranges and		to a larger pipe size.
corresponding manufacturer’s pressure switch kits.		The following stipulations apply when connecting gas piping. Refer
PROPANE GAS CONVERSION
		to Figure 16 for typical gas line connections to the furnace.
		• Use black iron or steel pipe and fittings for the building piping.
		•	Use pipe joint compound on male threads only. Pipe joint
			compound must be resistant to the action of the fuel used.
		•	Use ground joint unions.
IO-247A	18			12/04