Lennox International Inc EL280UH installation instructions Fan + Fan Fan + Nat

Page 20

TABLE 5

Vent Connector Capacity

Type B Double−Wall Vents with Type B Double−Wall Connectors

Serving Two or More Category I Appliances

Vent

Connector

 

 

 

Vent and Connector Diameter − D (inches)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Height

Rise

 

3 Inch

 

4 Inch

 

5 Inch

 

6 Inch

 

 

 

 

 

 

 

 

 

 

 

 

H

R

 

 

 

Appliance Input Rating in Thousands of Btu Per Hour

 

 

 

(feet)

(feet)

 

 

 

 

 

 

 

 

 

 

 

 

MIN

 

MAX

MIN

 

MAX

MIN

 

MAX

MIN

 

MAX

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

22

 

37

35

 

66

46

 

106

58

 

164

 

 

 

 

 

 

 

 

 

 

 

 

 

 

6

2

23

 

41

37

 

75

48

 

121

60

 

183

 

3

24

 

44

38

 

81

49

 

132

62

 

199

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

22

 

40

35

 

72

49

 

114

64

 

176

 

 

 

 

 

 

 

 

 

 

 

 

 

 

8

2

23

 

44

36

 

80

51

 

128

66

 

195

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3

24

 

47

37

 

87

53

 

139

67

 

210

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

22

 

43

34

 

78

49

 

123

65

 

189

 

 

 

 

 

 

 

 

 

 

 

 

 

 

10

2

23

 

47

36

 

86

51

 

136

67

 

206

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3

24

 

50

37

 

92

52

 

146

69

 

220

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

21

 

50

33

 

89

47

 

142

64

 

220

 

 

 

 

 

 

 

 

 

 

 

 

 

 

15

2

22

 

53

35

 

96

49

 

153

66

 

235

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3

24

 

55

36

 

102

51

 

163

68

 

248

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

21

 

54

33

 

99

46

 

157

62

 

246

 

 

 

 

 

 

 

 

 

 

 

 

 

 

20

2

22

 

57

34

 

105

48

 

167

64

 

259

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3

23

 

60

35

 

110

50

 

176

66

 

271

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

20

 

62

31

 

113

45

 

181

60

 

288

 

 

 

 

 

 

 

 

 

 

 

 

 

 

30

2

21

 

64

33

 

118

47

 

190

62

 

299

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3

22

 

66

34

 

123

48

 

198

64

 

309

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TABLE 6

Common Vent Capacity

Type B Double−Wall Vents with Type B Double−Wall Connectors

Serving Two or More Category I Appliances

Vent

 

 

 

Common Vent Diameter − D (inches)

 

 

 

 

 

 

 

 

 

 

 

Height

4 Inch

5 Inch

6 Inch

7 Inch

 

 

 

 

 

 

 

 

 

H

 

 

Appliance Input Rating in Thousands of Btu Per Hour

 

 

(feet)

 

 

 

 

 

 

 

 

 

FAN + FAN

FAN + NAT

FAN + FAN

 

FAN + NAT

FAN + FAN

FAN + NAT

FAN + FAN

FAN + NAT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

6

92

81

140

 

116

204

161

309

248

 

 

 

 

 

 

 

 

 

 

8

101

90

155

 

129

224

178

339

275

 

 

 

 

 

 

 

 

 

 

10

110

97

169

 

141

243

194

367

299

 

 

 

 

 

 

 

 

 

 

15

125

112

195

 

164

283

228

427

352

 

 

 

 

 

 

 

 

 

 

20

136

123

215

 

183

314

255

475

394

 

 

 

 

 

 

 

 

 

 

30

152

138

244

 

210

361

297

547

459

 

 

 

 

 

 

 

 

 

 

Page 20

Image 20
Contents Installation Instructions EL280UH Table of ContentsUnit Dimensions − inches mm Supply AIR OpeningParts Arrangement Shipping and Packing List Safety InformationEL280UH Gas Furnace Use of Furnace as Construction Heater GeneralCombustion, Dilution & Ventilation Air Equipment in Confined Space ALL AIR from Inside Equipment in Confined Space Setting Equipment Return Air Bracket Filters Duct SystemVenting Upflow PositionHorizontal Left Position Horizontal Right PositionVent Connection Upflow and Horizontal Position Common Venting Using Metal−Lined Masonry Chimney −1/2 To these instructions and the provided venting tables. If Feet FAN + FAN FAN + NAT 130 Carbon Monoxide Poisoning Hazard Gas Piping Leum gasesHorizontal Applications Possible Gas Piping Configurations Electrostatic Discharge ESD Interior MAKE−UP BOX InstallationElectrical Page Field Wiring Applications OFF EL280UH Schematic Wiring Diagram Typical EL280UH Field Wiring Diagram TWO−STAGE Integrated ControlIntegrated Control For Your Safety Read Before Lighting Unit Start−UpHigh Altitude Gas Pressure AdjustmentProper Combustion Manifold Pressure Settings at all Altitudes Other Unit Adjustments Heat FAN-OFF Time in SecondsHeating Sequence of Operation Blower Data Pressure Bottom and One Side Service Electrical SHOCK, Fire Or Explosion HazardEL280UH BURNER, Combustion AIR Inducer Assembly Heat Exchanger RemovalPage Planned Service Repair Parts ListLED Integrated Control Diagnostic CodesFlash Code Status / Error Description Troubleshooting Heating Sequence of Operation On NextHeating Sequence of Operation U1.40 microamps Or Heat Demand is SATISFIED. a Five Troubleshooting Cooling Sequence of Operation Cooling Sequence of OperationTroubleshooting Continuous Fan Sequence of Operation Continuous LOW Speed FAN Sequence of OperationStart−Up & Performance Check List Cooling Mode Temperature RiseUnit Operation Drain Line
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Elite Series Gas Furnace Upflow/Horizontal Air Discharge, EL280UH specifications

Lennox International Inc. has established itself as a leader in the heating and cooling industry, providing innovative solutions for both residential and commercial environments. One of their notable products is the EL280UH, a high-efficiency gas furnace designed to offer optimal comfort while minimizing energy consumption.

The EL280UH operates with an impressive Annual Fuel Utilization Efficiency (AFUE) rating of up to 80%. This efficiency rating means that 80% of the fuel consumed is converted into heat, making it a cost-effective option for homeowners looking to reduce their utility bills. The furnace’s design is tailored to deliver reliable warmth during the coldest months, ensuring a comfortable home environment.

A key feature of the EL280UH is its two-stage heating capability. This technology allows the furnace to operate at a lower heating output for less demanding conditions, which not only conserves energy but also helps maintain a more consistent temperature in the home. When the demand for heat increases, the furnace can seamlessly transition to its higher output setting, providing quick and effective heating when needed.

Additionally, the EL280UH is equipped with a durable cabinet that minimizes heat loss, enhancing overall performance. The design incorporates several sound-dampening features as well, which contributes to quieter operation, allowing homeowners to enjoy a serene indoor environment.

The furnace also includes an advanced control system that integrates easily with smart home technology. This feature enables users to monitor and adjust their heating settings from anywhere using a smartphone app, creating added convenience and control over home heating.

Safety is another paramount aspect of the EL280UH. It includes an integrated flame sensor and pressure switch, ensuring reliable operation while minimizing risks associated with furnace malfunctions. The design adheres to stringent safety standards, providing users with peace of mind.

In summary, the Lennox EL280UH furnace stands out for its high efficiency, advanced features, and commitment to user safety. Its two-stage heating capability, quiet operation, and smart home integration make it an excellent choice for homeowners looking to enhance their heating system while being energy-conscious. The EL280UH embodies Lennox's dedication to quality and innovation, ensuring that comfort and efficiency go hand in hand.