TABLE 11

Gas Pipe Capacity − ft3/hr (m3/hr)

Nominal

Internal

 

 

 

 

Length of Pipe − feet (m)

 

 

 

Iron Pipe

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Diameter

 

 

 

 

 

 

 

 

 

 

 

Size

 

 

 

 

 

 

 

 

 

 

 

inches

10

20

30

40

 

50

60

70

80

90

100

inches

 

(mm)

(3.048)

(6.096)

(9.144)

(12.192)

 

(15.240)

(18.288)

(21.336)

(24.384)

(27.432)

(30.480)

(mm)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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)

(919.25)

(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)

 

 

 

 

 

 

 

 

 

 

 

 

 

NOTE − Capacity given in cubic feet (m3 ) of gas per hour and based on 0.60 specific gravity gas.

Left Side Piping

AUTOMATIC

(Standard)

 

 

GAS VALVE

MANUAL

AUTOMATIC

(with manual

shut−off valve)

MAIN SHUT−OFF

GAS VALVE

 

VALVE

(with manual

 

 

shut−off valve)

 

GROUND

 

 

JOINT

 

 

UNION

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FIELD

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PROVIDED

DRIP LEG

 

AND INSTALLED

MANUAL

MAIN SHUT−OFF

VALVE

GROUND

JOINT

UNION

DRIP LEG

Right Side Piping

(Alternate)

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

FIGURE 17

Page 20

Page 19 Page 21
Page 20
Image 20
Lennox International Inc SL280DFV, DAVE LENNOX SIGNATURE COLLECTION GAS FURNACE Gas Pipe Capacity − ft3/hr m3/hr
Page 19 Page 21

DAVE LENNOX SIGNATURE COLLECTION GAS FURNACE, SL280DFV specifications

Lennox International Inc has made a significant mark in the heating, ventilation, and air conditioning (HVAC) industry, known for its commitment to innovation and energy efficiency. One of its standout products is the SL280DFV model, a high-efficiency gas furnace designed to meet the needs of modern homes.

The SL280DFV boasts an impressive Annual Fuel Utilization Efficiency (AFUE) rating of up to 80%. This rating indicates that the furnace converts 80% of the fuel it consumes into usable heat, making it a cost-effective choice for homeowners. The high efficiency not only reduces energy bills but also lessens the environmental impact by minimizing greenhouse gas emissions.

One of the key features of the SL280DFV is its two-stage gas valve operation. This technology allows the furnace to operate at two levels of heating output: low stage for milder days and high stage for extremely cold temperatures. This adaptability enhances comfort by maintaining more consistent indoor temperatures while also saving energy when full power is unnecessary.

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The SL280DFV is equipped with a durable heat exchanger that is designed to withstand the rigors of daily use, contributing to the unit’s longevity. Additionally, the furnace features a smart ignition system that ensures reliable start-ups, so homeowners can depend on it through the coldest winter nights.

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