Left Side Piping

 

 

MANUAL

 

(Standard)

 

AUTOMATIC

 

 

MAIN SHUT−OFF

 

 

GAS VALVE

 

 

 

MANUAL

 

 

VALVE

AUTOMATIC

 

(with manual

MAIN SHUT−OFF

Plug

(With 1/8 in. NPT

GAS VALVE

shut−off valve)

VALVE

(with manual

Plug

 

Plugged Tap

(With 1/8 in. NPT

 

Shown)

shut−off valve)

 

Plugged Tap Shown)

 

 

GROUND

 

 

 

 

 

 

 

JOINT

 

 

 

 

UNION

GROUND

 

 

 

 

JOINT

 

 

 

 

UNION

 

 

 

DRIP LEG

 

 

 

 

 

 

FIELD

Right Side Piping

 

 

(Alternate)

 

 

PROVIDED

Bellows Grommet

DRIP LEG

AND INSTALLED

 

 

 

Bellows Grommet

 

 

NOTE − BLACK IRON PIPE ONLY TO BE ROUTED INSIDE OF CABINET

FIGURE 47

TABLE 10

GAS PIPE CAPACITY − FT3/HR (kL/HR)

Nominal

Internal

 

 

 

 

Length of Pipe−Feet(m)

 

 

 

 

Iron Pipe Size

Diameter

10

20

30

40

 

50

60

 

70

80

90

100

−Inches(mm)

−Inches(mm)

(3.048)

(6.096)

(9.144)

(12.192)

 

(15.240)

(18.288)

 

(21.336)

(24.384)

(27.432)

(30.480)

1/2

.622

175

120

97

82

 

73

66

 

61

57

53

50

(12.7)

(17.799)

(4.96)

(3.40)

(2.75)

(2.32)

 

(2.07)

(1.87)

 

(1.73)

(1.61)

(1.50)

(1.42)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3/4

.824

360

250

200

170

 

151

138

 

125

118

110

103

(19.05)

(20.930)

(10.19)

(7.08)

(5.66)

(4.81)

 

(4.28)

(3.91)

 

(3.54)

(3.34)

(3.11)

(2.92)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

1.049

680

465

375

320

 

285

260

 

240

220

205

195

(25.4)

(26.645)

(19.25)

(13.17)

(10.62)

(9.06)

 

(8.07)

(7.36)

 

(6.80)

(6.23)

(5.80)

(5.52)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1−1/4

1.380

1400

950

770

660

 

580

530

 

490

460

430

400

(31.75)

(35.052)

(39.64)

(26.90)

(21.80)

(18.69)

 

(16.42)

(15.01)

 

(13.87)

(13.03)

(12.18)

(11.33)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1−1/2

1.610

2100

460

1180

990

 

900

810

 

750

690

650

620

(38.1)

(40.894)

(59.46)

(41.34)

(33.41)

(28.03)

 

(25.48)

(22.94)

 

(21.24)

(19.54)

(18.41)

(17.56)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2

2.067

3950

2750

2200

1900

 

1680

1520

 

1400

1300

1220

1150

(50.8)

(52.502)

(111.85)

(77.87)

(62.30)

(53.80)

 

(47.57)

(43.04)

 

(39.64)

(36.81)

(34.55)

(32.56)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2−1/2

2.469

6300

4350

3520

3000

 

2650

2400

 

2250

2050

1950

1850

(63.5)

(67.713)

(178.39)

(123.17)

(99.67)

(84.95)

 

(75.04)

(67.96)

 

(63.71)

(58.05)

(55.22)

(52.38)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3

3.068

11000

7700

6250

5300

 

4750

4300

 

3900

3700

3450

3250

(76.2)

(77.927)

(311.48)

(218.03)

(176.98)

(150.07)

 

(134.50)

(121.76)

 

(110.43)

(104.77)

(97.69)

(92.03)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4

4.026

23000

15800

12800

10900

 

9700

8800

 

8100

7500

7200

6700

(101.6)

(102.260)

(651.27)

(447.39)

(362.44)

(308.64)

 

(274.67)

(249.18)

 

(229.36)

(212.37)

(203.88)

(189.72)

NOTE − Capacity given in cubic feet of gas per hour (kilo liters of gas per hour) and based on 0.60 specific gravity gas.

Page 31

Page 31
Image 31
Lennox International Inc MERIT SERIES GAS FURNACE DOWNFLOW AIR DISCHARGE, ML193DF GAS Pipe Capacity − FT3/HR kL/HR