27
HPHUJHQF\PDOIXQFWLRQRIWKHVXSSO\V\VWHPWKHJDVYDOYHPXVWEH
FKHFNHGIRUVDIHRSHUDWLRQ0DNHVXUHWKDWWKHRXWVLGHYHQWVRQWKH
VXSSO\UHJXODWRUVDQGWKHVDIHW\YHQWYDOYHVDUHSURWHFWHGDJDLQVW
EORFNDJH7KHVHDUHSDUWVRIWKHJDVVXSSO\V\VWHPQRWWKHKHDWHU
9HQWEORFNDJHPD\RFFXUGXULQJLFHVWRUPV
TABLE 11. MAXIMUM CAPACITY OF PIPE IN
CUBIC FEET OF GAS PER HOUR
%DVHGXSRQD3UHVVXUH'URSRILQFK:DWHU&ROXPQDQG
6SHFL¿F*UDYLW\*DVDQGPD[JDVSUHVVXUHRISVLJ
LENGTH
IN FEET
NOMINAL IRON PIPE SIZE (INCHES)
1/2
3/4
1
1 1/4
1 1/2
2
2 1/2
3
4
10
175
360
680
20
120
250
465
950
30
97
200
375
770
40
82
170
320
660
990
50
73
151
285
580
900
60
66
138
260
530
810
70
61
125
240
490
750
80
57
118
220
460
690
90
53
110
205
430
650
100
50
103
195
400
620
125
44
93
175
360
550
150
40
84
160
325
500
950
175
37
77
145
300
460
850
200
35
72
135
280
430
800
TABLE 11A.
LENGTH
IN
METERS
NOMINAL IRON PIPE SIZES, MILLIMETERS
1/2
3/4
1
1 1/4
1 1/2”
2
2 1/2
3
4
3.0
51
105
199
410
615
1160
1845
3221
6735
6.1
35
73
142
278
428
805
1277
2255
4626
9.1
28
59
110
225
346
644
1031
1830
3748
12.2
24
50
94
193
290
556
878
1552
3192
15.2
21
44
83
170
264
492
776
1391
2840
18.3
19
40
76
155
237
445
703
1259
2577
21.3
18
37
70
143
220
410
659
1142
2372
24.4
17
35
64
135
202
381
600
1083
2196
27.4
16
32
60
126
190
357
571
1010
2108
30.5
15
30
57
117
182
337
542
952
1962
38.1
13
27
51
105
161
299
483
864
1757
45.7
12
25
47
95
146
278
439
776
1610
53.3
11
23
42
88
135
249
401
717
1464
61.0
10
21
40
82
126
234
375
688
1347
,WLVLPSRUWDQWWRJXDUGDJDLQVWJDVYDOYHIRXOLQJIURPFRQWDPLQDQWV
LQ JDV ZD\V 6XFK IRXOLQJ PD\ FDXVH LPSURSHU RSHUDWLRQ ¿UH
RUH[SORVLRQ
,IFRSSHUVXSSO\OLQHVDUHXVHGWKH\PXVWEHLQWHUQDOO\WLQQHGDQG
FHUWL¿HGIRUJDVVHUYLFH%HIRUHDWWDFKLQJWKHJDVOLQHEHVXUHWKDW
DOOJDVSLSHLVFOHDQRQWKHLQVLGH
7R WUDS DQ\ GLUW RU IRUHLJQ PDWHULDO LQ WKH JDV VXSSO\ OLQH D
VHGLPHQWWUDSPXVWEHLQFRUSRUDWHGLQWKHSLSLQJVHH)LJXUH
7KHVHGLPHQWWUDSPXVWEHUHDGLO\DFFHVVLEOHDQGQRWVXEMHFWWR
IUHH]LQJFRQGLWLRQV,QVWDOOLQDFFRUGDQFHZLWKUHFRPPHQGDWLRQV
RIVHUYLQJJDVVXSSOLHUV5HIHUWRWKHODWHVWYHUVLRQRIWKH1DWLRQDO
)XHO*DV&RGH
7R SUHYHQW GDPDJH FDUH PXVW EH WDNHQ QRW WR DSSO\ WRR PXFK
WRUTXHZKHQDWWDFKLQJJDVVXSSO\SLSHWRJDVYDOYHLQOHW
$SSO\ MRLQW FRPSRXQGV SLSH GRSH VSDULQJO\ DQG RQO\ WR WKH
PDOH WKUHDGV RI SLSH MRLQWV 'R QRW DSSO\ FRPSRXQGV WR WKH ¿UVW
WZR WKUHDGV 8VH FRPSRXQGV UHVLVWDQW WR WKH DFWLRQ RI OLTXH¿HG
SHWUROHXPJDVHV
GAS METER SIZE – NATURAL GASES ONLY
%HVXUHWKHJDVPHWHUKDVVXI¿FLHQWFDSDFLW\WRVXSSO\WKHIXOOUDWHG
JDVLQSXWRIWKHZDWHUKHDWHUDVZHOODVWKHUHTXLUHPHQWVRIDOORWKHU
JDV¿UHGHTXLSPHQWVXSSOLHGE\WKHPHWHU,IJDVPHWHULVWRRVPDOODVN
WKHJDVFRPSDQ\WRLQVWDOODODUJHUPHWHUKDYLQJDGHTXDWHFDSDFLW\
GAS PIPING AND SEDIMENT TRAP INSTALLATION
FIGURE 23.
GAS LINE LEAK TESTING
Fire and Explosion Hazard
Leak test before placing the water
heater in operation.
Disconnect gas piping and main gas
shutoff valve before leak testing.
Install sediment trap in accordance
with NFPA 54.
Use joint compound or Teflon tape
compatible with propane gas.
$Q\WLPHZRUNLVGRQHRQWKHJDVVXSSO\V\VWHPSHUIRUPDOHDN
WHVWWRDYRLGWKHSRVVLELOLW\RI¿UHRUH[SORVLRQ
)RU WHVW SUHVVXUHV H[FHHGLQJ SVL N3D GLVFRQQHFW
WKH ZDWHU KHDWHU DQG LWV 0DLQ *DV 6KXWRII 9DOYH IURP WKH
JDVVXSSO\SLSLQJV\VWHPGXULQJWHVWLQJVHH)LJXUH7KH
JDVVXSSO\OLQHPXVWEHFDSSHGZKHQGLVFRQQHFWHGIURPWKH
ZDWHUKHDWHU
)RU WHVW SUHVVXUHV RI SVL NSD RU OHVV WKH ZDWHU
KHDWHUQHHGQRWEHGLVFRQQHFWHGEXWPXVWEHLVRODWHGIURP
WKH VXSSO\ JDV OLQH E\ FORVLQJ WKH 0DLQ *DV 6KXWRII 9DOYH
GXULQJWHVWLQJ
&RDWDOOVXSSO\JDVOLQHMRLQWVDQGFRQQHFWLRQVXSVWUHDPRIWKH
ZDWHU KHDWHU ZLWK D QRQFRUURVLYH VRDS DQG ZDWHU VROXWLRQ WR
WHVWIRUOHDNV%XEEOHVLQGLFDWHDJDVOHDN'RQRWXVHPDWFKHV
FDQGOHVÀDPHRURWKHUVRXUFHVRILJQLWLRQIRUWKLVSXUSRVH
5HSDLUDQ\OHDNVEHIRUHSODFLQJWKHZDWHUKHDWHULQRSHUDWLRQ
PURGING
*DVOLQHSXUJLQJLVUHTXLUHGZLWKQHZSLSLQJRUV\VWHPVLQZKLFKDLU
KDVHQWHUHG
3XUJLQJVKRXOGEHSHUIRUPHGSHUWKHFXUUHQWHGLWLRQRI1)3$WKH
1DWLRQDO)XHO*DV&RGH
Содержание 650A
Страница 23: ...23 FIGURE 19 FIGURE 19B ...
