American Standard YSC036A Installation, Operation And Maintenance Manual page 33

Installation
Table 7. Temperature vs. resistance
Temperature
Degrees Degrees Nominal
F° C° Resistance
-20° -28.9° 170.1 K - Ohms
-15° -26.1° 143.5 K - Ohms
-10° -23.3° 121.4 K - Ohms
-5° -20.6° 103.0 K - Ohms
0° -17.8° 87.56 K - Ohms
5° -15.0° 74.65 K - Ohms
10° -12.2° 63.80 K - Ohms
15° -9.4° 54.66 K - Ohms
20° -6.7° 46.94 K - Ohms
25° -3.8° 40.40 K - Ohms
30° -1.1° 34.85 K - Ohms
35° 1.7° 30.18 K - Ohms
40° 4.4° 26.22 K - Ohms
45° 7.2° 22.85 K - Ohms
50° 10.0° 19.96 K - Ohms
55° 12.8° 17.47 K - Ohms
60° 15.6° 15.33 K - Ohms
65° 18.3° 13.49 K - Ohms
70° 21.1° 11.89 K - Ohms
75° 23.9° 10.50 K - Ohms
80° 26.7° 9.297 K - Ohms
85° 29.4° 8.247 K - Ohms
90° 32.2° 7.330 K - Ohms
95° 35.0° 6.528 K - Ohms
Table 8. Sizing natural gas pipe mains
and branches
Iron Pipe Size (IPS) Inches
Length
of Pipe 1/2" 3/4" 1" 1 1/4"
(Ft.) Pipe Pipe Pipe Pipe
15 76 176 345 750
30 52 120 241 535
45 43 99 199 435
60 38 86 173 380
75 77 155 345
Capacity of Pipe of Different Diameters and Lengths in
Cu. Ft. Per Hr. with Pressure Drop of 0.3" and Specific
Gravity of 0.60
RT-SVX21F-EN
Table 9. Iron pipe size (SI) millimeters
Iron Pipe Size (SI) Millimeters
Length 15 20
of Pipe mm mm
(Meters) Pipe Pipe
4.6 2.15 4.98
9.1 1.47 3.39
13.7 1.21 2.80
18.3 1.07 2.43
22.9 — 2.18
Capacity of Pipe of Different Diameters and Lengths in
Cu. Meter Per Hr. with Pressure Drop of 74.6 Pa and
Specific Gravity of 0.60
Figure 38. Schematic diagram for
filed gas piping to unit
Figure 39. New TC01 location
1 1/2"
Pipe
1220
850
700
610
545
25 32 40
mm mm mm
Pipe Pipe Pipe
9.76 21.23 34.54
6.82 15.14 24.06
5.63 12.31 19.82
4.89 10.76 17.27
4.38 9.76 15.40
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