Trane IntelliPak SAHL Series Installation, Operation And Maintenance Manual page 58

Installation
Note: Do not rely on the gas train shutoff valves to isolate the unit while conducting gas pressure/
Connecting the Gas Supply Line to the Furnace Gas Train
Follow the steps below to complete the installation between the supply gas line and the furnace.
Refer to
1. Connect the supply gas piping using a "ground-joint" type union to the furnace gas train and
2. Adjust the inlet supply pressure to the recommended 7" to 14" w.c. parameter for natural gas.
3. Ensure that the piping is adequately supported to avoid gas train stress.
Table 16. Sizing Natural Gas Pipe Mains and Branches
Pipe Run (ft)
* Table is based on a specific gravity of 0.60. Use
Table 17. Specific Gravity Multipliers
Specific Gravity
58
leak test. These valves are not designed to withstand pressures in excess of 14" w.c. or 0.5
psig.
Figure 24 through Figure 27
check for leaks.
Gas Supply 1-1/4"
Pipe
10 1050
20 730
30 590
40 500
50 440
60 400
70 370
80 350
90 320
100 305
125 275
150 250
175 225
200 210
Multiplier
0.50 1.10
0.55 1.04
0.60 1.00
0.65 0.96
for the appropriate gas train configuration.
Gas Input (Cubic Feet/Hour)*
1-1/2" 2"
Pipe Pipe
1600 3050
1100 2100
890 1650
760 1450
670 1270
610 1150
560 1050
530 990
490 930
460 870
410 780
380 710
350 650
320 610
Table 17 for the specific gravity of the local gas supply.
2-1/2" 3"
Pipe Pipe
4800 8500
3300 5900
2700 4700
2300 4100
2000 3600
1850 3250
1700 3000
1600 2800
1500 2600
1400 2500
1250 2200
1130 2000
1050 1850
980 1700
RT-SVX36G-EN
4"
Pipe
17500
12000
9700
8300
7400
6800
6200
5800
5400
5100
4500
4100
3800
3500