Gas Supply And Piping; Proper Piping Practice - Amana 10759833 Installation Instructions Manual

Two-stage variable speed
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The gas line installation must comply with local codes, or in the absence of local codes, with the latest edition of the
National Fuel Gas Code NFPA 54/ANSI Z223.1.
IMPORTANT NOTE: This unit is factory set to operate on natural gas at the altitudes shown on the rating plate. The plate
is stamped with the model number, type of gas and gas input rating. Make sure the unit is equipped to operate on the
type of gas available.
DO NOT VARY FROM THE MINIMUM SUPPLY PRESSURE GIVEN IN TABLE 1.
DO NOT EXCEED THE RATED INPUT SHOWN ON THE RATING PLATE.
Overfiring of the unit could result in premature heat exchanger failure.
DO NOT UNDERSIZE THE NATURAL/PROPANE GAS PIPING FROM THE METER/TANK TO THE UNIT.
Doing so could cause unsatisfactory operation or equipment damage due to under firing of equipment.
When sizing a trunk line (Table 2), include all appliances on that line that could be operated simultaneously.
Inlet Gas Pressure
Natural
Min. 5.0" W.C., Max. 10.0" W.C.
Propane
Min. 11.0" W.C., Max. 13.0" W.C.
Inlet Gas Pressure Must Not Exceed the Maximum Value Shown in
Table Above.
Table 1
To prevent death, personal injury or property damage when either using propane gas alone or at higher altitudes,
obtain and install the proper conversion kit(s). Failure to do so can result in unsatisfactory operation and/or
equipment damage. High altitude kits are for U.S. installations only and are not approved for use in Canada.

Gas Supply and Piping

Proper Piping Practice

Doing so could create ignition problems.
WARNING
19
19
Natural Gas Capacity of Pipe
in Cubic Feet of Gas Per Hour (CFH)
Nominal Black Pipe Size (inches)
Length of
Pipe in Feet
1/2
3/4
10
132
278
20
92
190
30
73
152
40
63
130
50
56
115
60
50
105
70
46
96
80
43
90
90
40
84
100
38
79
Pressure = .50 PSIG or less and Pressure Drop of 0.3" W.C. (Based
on 0.60 Specific Gravity Gas)
BTUH Furnace Input
CFH =
Heating Value of Gas (BTU/Cubic Foot)
Table 2
1
1 1/4
1 1/2
520
1050
1600
350
730
1100
285
590
980
245
500
760
215
440
670
195
400
610
180
370
560
170
350
530
160
320
490
150
305
460

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