Lennox G51MP SERIES Installation Instructions Manual page 33

MANUAL
MAIN SHUT−OFF
VALVE
GROUND
JOINT
UNION
DRIP LEG
Horizontal Application
Right−Side Air Discharge
Nominal Internal
Iron Pipe Size Diameter
−Inches(mm) −Inches(mm)
1/4 .364
(6.35) (9.246)
3/8 .493
(9.53) (12.522)
1/2 .622
(12.7) (17.799)
3/4 .824
(19.05) (20.930)
1 1.049
(25.4) (26.645)
1−1/4 1.380
(31.75) (35.052)
1−1/2 1.610
(38.1) (40.894)
2 2.067
(50.8) (52.502)
2−1/2 2.469
(63.5) (67.713)
3 3.068
(76.2) (77.927)
4 4.026
(101.6) (102.260)
NOTE − Capacity given in cubic feet of gas per hour (kilo liters of gas per hour) and based on 0.60 specific gravity gas.
Horizontal Applications
Possible Gas Piping Configurations
In LP/propane applications using a
Honeywell VR8205 gas valve, a 4" BIP
nipple must be installed to accommodate
the low inlet pressure switch.
FIGURE 48
TABLE 9
GAS PIPE CAPACITY − FT
10 20 30
(3.048) (6.096) (9.144)
43 29 24
(1.13) (.82) (.68)
95 65 52
(2.69) (1.84) (1.47)
175 120 97
(4.96) (3.40) (2.75)
360 250 200
(10.19) (7.08) (5.66)
680 465 375
(19.25) (13.17) (10.62)
1400 950 770
(39.64) (26.90) (21.80)
2100 460 1180
(59.46) (41.34) (33.41)
3950 2750 2200
(111.85) (77.87) (62.30)
6300 4350 3520
(178.39) (123.17) (99.67)
11000 7700 6250
(311.48) (218.03) (176.98)
23000 15800 12800
(651.27) (447.39) (362.44)
Page 33
MANUAL
MAIN SHUT−OFF
VALVE
GROUND
JOINT
UNION
DRIP LEG
3 /HR (kL/HR)
Length of Pipe−Feet(m)
40 50 60
(12.192) (15.240) (18.288)
20 18 16
(.57) (.51) (.45)
45 40 36
(1.27) (1.13) (1.02)
82 73 66
(2.32) (2.07) (1.87)
170 151 138
(4.81) (4.28) (3.91)
320 285 260
(9.06) (8.07) (7.36)
660 580 530
(18.69) (16.42) (15.01)
990 900 810
(28.03) (25.48) (22.94)
1900 1680 1520
(53.80) (47.57) (43.04)
3000 2650 2400
(84.95) (75.04) (67.96)
5300 4750 4300
(150.07) (134.50) (121.76)
10900 9700 8800
(308.64) (274.67) (249.18)
Horizontal Application
Left−Side Air Discharge
MANUAL
MAIN SHUT−OFF
VALVE
(With 1/8 in. NPT
Plugged Tap
Shown)
GROUND
JOINT
UNION
DRIP LEG
70 80 90
(21.336) (24.384) (27.432)
15 14 13
(.42) (.40) (.37)
33 31 29
(.73) (.88) (.82)
61 57 53
(1.73) (1.61) (1.50)
125 118 110
(3.54) (3.34) (3.11)
240 220 205
(6.80) (6.23) (5.80)
490 460 430
(13.87) (13.03) (12.18)
750 690 650
(21.24) (19.54) (18.41)
1400 1300 1220
(39.64) (36.81) (34.55)
2250 2050 1950
(63.71) (58.05) (55.22)
3900 3700 3450
(110.43) (104.77) (97.69)
8100 7500 7200
(229.36) (212.37) (203.88)
100
(30.480)
12
(.34)
27
(.76)
50
(1.42)
103
(2.92)
195
(5.52)
400
(11.33)
620
(17.56)
1150
(32.56)
1850
(52.38)
3250
(92.03)
6700
(189.72)