37
SUPPLY GAS LINE INSTALLATION
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Fire and Explosion Hazard
Turn off gas lines during installation.
Contact a qualified installer or service
agency for installation and service.
Excessive gas pressure to gas valve can
cause serious injury or death.
Do not use water heater with any gas
other than the gas shown on the rating
label.
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REGULATED GAS
SUPPLY LINE
MAIN GAS
SHUTOFF VALVE
TEE FITTING
PIPE CAP
SEDIMENT TRAP
(DIRT LEG)
Figure 52
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GAS LINE SIZING
DO NOT
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SUPPLY GAS LINE SIZING U. S. UNITS
TABLE 8
LENGTH
IN
)((7
1250$/,5213,3(6,=(6,1&+(6
INPUT IN THOUSANDS BTU/HR
´
´
´
´
´
´
10
1400
2100
3960
6300
11000
23000
20
950
1460
2750
4360
7700
15800
30
770
1180
2200
3520
6250
12800
40
660
990
1900
3000
5300
10900
50
580
900
1680
2650
4750
9700
60
530
810
1520
2400
4300
8800
70
490
750
1400
2250
3900
8100
80
460
690
1300
2050
3700
7500
90
430
650
1220
1950
3450
7200
100
400
620
1150
1850
3250
6700
125
360
550
1020
1650
2950
6000
150
325
500
950
1500
2650
5500
175
300
460
850
1370
2450
5000
200
N/A
430
800
1280
2280
4600
SUPPLY GAS LINE SIZING METRIC UNITS
TABLE 9
LENGTH
IN
METERS
1250$/,5213,3(6,=(6,1&+(6
INPUT IN kW
´
´
´
´
´
´
3.0
410
615
1160
1845
3221
6735
6.1
278
428
805
1277
2255
4626
9.1
225
346
644
1031
1830
3748
12.2
193
290
556
878
1552
3192
15.2
170
264
492
776
1391
2840
18.3
155
237
445
703
1259
2577
21.3
143
220
410
659
1142
2372
24.4
135
202
381
600
1083
2196
27.4
126
190
357
571
1010
2108
30.5
117
182
337
542
952
1962
38.1
105
161
299
483
864
1757
45.7
95
146
278
439
776
1610
53.3
88
135
249
401
717
1464
61.0
N/A
126
234
375
688
1347
