MrCool MHWH199NC U Series, Руководство по установке

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8
Gas Pipe Sizing Tables
Pipe Size
Length (including fittings)
10 ft
(3 m)
20 ft
(6 m)
3/4 in 360 247 199 170 151 137 126 117 110 104 92
1 in 678 466 374 320 284 257 237 220 207 195 173
1-1/4 in 1,390 957 768 657 583 528 486 452 424 400 355
1-1/2 in 2,090 1,430 1,150 985 873 791 728 677 635 600 532
2 in 4,020 2,760 2,220 1,900 1,680 1,520 1,400 1,300 1,220 1,160 1,020
2-1/2 in 6,400 4,400 3,530 3,020 2,680 2,430 2,230 2,080 1,950 1,840 1,630
3 in 11,300 7,780 6,250 5,350 4,740 4,290 3,950 3,670 3,450 3,260 2,890
4 in 23,100 15,900 12,700 10,900 9,660 8,760 8,050 7,490 7,030 6,640 5,890
30 ft
(9 m)
40 ft
(12 m)
50 ft
(15 m)
60 ft
(18 m)
70 ft
(21 m)
80 ft
(24 m)
90 ft
(27 m)
100 ft
(30 m)
125 ft
(38 m)
454 312 250 214 190 172 158 147 138 131 116
949 652 524 448 397 360 331 308 289 273 242
1,790 1,230 986 844 748 678 624 580 544 514 456
3,670 2,520 2,030 1,730 1,540 1,390 1,280 1,190 1,120 1,060 936
5,500 3,780 3,030 2,600 2,300 2,090 1,920 1,790 1,670 1,580 1,400
10,600 7,280 5,840 5,000 4,430 4,020 3,690 3,440 3,230 3,050 2,700
16,900 11,600 9,310 7,970 7,060 6,400 5,890 5,480 5,140 4,860 4,300
29,800 20,500 16,500 14,100 12,500 11,300 10,400 9,690 9,090 8,580 7,610
60,800 41,800 33,600 28,700 25,500 23,100 21,200 19,800 18,500 17,500 15,500
1/2 in
3/4 in
1 in
1-1/4 in
1-1/2 in
2 in
2-1/2 in
3 in
4 in
Pipe Size
Length (including fittings)
10 ft
(3 m)
20 ft
(6 m)
30 ft
(9 m)
40 ft
(12 m)
50 ft
(15 m)
60 ft
(18 m)
70 ft
(21 m)
80 ft
(24 m)
90 ft
(27 m)
100 ft
(30 m)
125 ft
(38 m)
In Cubic Feet (ft
3
) per hour (0.60 Specific Gravity; 0.5 in WC Pressure Drop). Contact your gas supplier for
BTU/ft
3
ratings. Use 1,000 BTU/ft
3
for simplified calculations. This table is recommended for supply pressures
less than 6 in WC.
In Cubic Feet (ft
3
) per hour (0.60 Specific Gravity; 3.0 in WC Pressure Drop). Contact your gas supplier for
BTU/ft
3
ratings. Use 1,000 BTU/ft
3
for simplified calculations. This table is recommended for supply pressures
less than 6 in WC.
Maximum Natural Gas Delivery Capacity
NOTE: The tables below are for reference only. Please consult the gas pipe
manufacturer for actual pipe capacities. The tables below are referenced from the
2012 National Fuel Gas Code.