Bryant 915S warranty Direct Vent 2-PIPE and SINGLE-PIPE

Page 9

MAXIMUM EQUIVALENT VENT LENGTH - FT. (M) (CONTINUED)

Table 3 – Maximum Equivalent Vent Length - Ft. (M)

4501 to 10,000 Ft. (0 to 1370 M) Altitude

NOTE: Maximum Equivalent Vent Length (MEVL) includes standard and concentric vent termination and does NOT include elbows.

Use Table 2 - Deductions from Maximum Equivalent Vent Length to determine allowable vent length for each application.

Altitude

 

 

 

 

DIRECT VENT (2-PIPE) AND SINGLE-PIPE

 

 

 

Unit Size

 

 

 

 

Vent Pipe Diameter (in.) 1

 

 

 

 

 

FT (M) 5

 

 

 

 

 

 

 

 

 

 

 

1-1/2

2

 

 

2-1/2

 

3

 

4

 

 

 

 

 

 

 

 

40,000

33

 

(10.1)

171

(52.1)

196

 

(59.7)

NA 2

 

 

NA

 

 

4501 to 5000

60,000

20

 

(6.1)

111

(33.8)

198

 

(60.4)

221

 

(67.4)

NA

 

 

(1370 to

80,000

13

 

(4.0)

54

(16.5)

146

 

(44.5)

195

 

(59.4)

216

 

(65.8)

1524)

100,000

NA

 

 

16

(4.9)

91

 

(27.7)

200

 

(61.0)

222

 

(67.7)

 

120,000

NA

 

 

NA

 

NA

 

 

80

 

(24.4)

211

 

(64.3)

 

140,000 4

NA

 

 

NA

 

NA

 

 

 

 

 

 

 

 

 

 

 

 

 

 

60

 

(18.3)

134

 

(40.8)

 

40,000

27

 

(8.2)

158

(48.2)

179

 

(54.6)

NA

 

 

NA

 

 

5001 to 6000

60,000

16

 

(4.9)

103

(31.4)

186

 

(56.7)

207

 

(63.1)

NA

 

 

80,000

11

 

(3.4)

49

(14.9)

137

 

(41.8)

183

 

(55.8)

200

 

(61.0)

(1524 to

 

 

 

 

100,000

NA

 

 

12

(3.7)

85

 

(25.9)

188

 

(57.3)

208

 

(63.4)

1829)

 

 

 

 

 

 

120,000

NA

 

 

NA

 

NA

 

 

74

 

(22.6)

199

 

(60.7)

 

140,000 4

NA

 

 

NA

 

NA

 

 

 

 

 

 

 

 

 

 

 

 

 

 

50

 

(15.2)

109

 

(33.2)

 

40,000

21

 

(6.4)

145

(44.2)

162

 

(49.4)

NA

 

 

NA

 

 

6001 to 7000

60,000

13

 

(4.0)

96

(29.3)

174

 

(53.0)

194

 

(59.1)

NA

 

 

80,000

NA

 

 

44

(13.4)

120

 

(36.6)

171

 

(52.1)

185

 

(56.4)

(1829 to

 

 

 

 

 

100,000

NA

 

 

10

(3.0)

79

 

(24.1)

178

 

(54.3)

195

 

(59.4)

2134)

 

 

 

 

 

 

120,000

NA

 

 

NA

 

NA

 

 

68

 

(20.7)

187

 

(57.0)

 

140,000 4

NA

 

 

NA

 

NA

 

 

 

 

 

 

 

 

 

 

 

 

 

 

41

 

(12.5)

87

 

(26.5)

 

40,000

15

 

(4.6)

133

(40.5)

146

 

(44.5)

NA

 

 

NA

 

 

7001 to 8000

60,000

10

 

(3.0)

89

(27.1)

163

 

(49.7)

181

 

(55.2)

NA

 

 

80,000

NA

 

 

40

(12.2)

120

 

(36.6)

159

 

(48.5)

170

 

(51.8)

(2134 to

 

 

 

 

 

2438)

100,000

NA

 

 

NA

 

73

 

(22.3)

167

 

(50.9)

182

 

(55.5)

 

120,000

NA

 

 

NA

 

NA

 

 

62

 

(18.9)

175

 

(53.3)

 

140,000 4

NA

 

 

NA

 

NA

 

 

 

 

 

 

 

 

 

 

 

 

 

 

32

 

(9.8)

63

 

(19.2)

 

40,000

10

 

(3.0)

121

(36.9)

130

 

(39.6)

NA

 

 

NA

 

 

8001 to 9000

60,000

7

 

(2.1)

82

(25.0)

152

 

(46.3)

168

 

(51.2)

NA

 

 

80,000

NA

 

 

35

(10.7)

111

 

(33.8)

148

 

(45.1)

156

 

(47.5)

(2438 to

 

 

 

 

 

2743)

100,000

NA

 

 

NA

 

67

 

(20.4)

157

 

(47.9)

170

 

(51.8)

 

120,000

NA

 

 

NA

 

NA

 

 

56

 

(17.1)

164

 

(50.0)

 

140,000 4

NA

 

 

NA

 

NA

 

 

 

 

 

 

 

 

 

 

 

 

 

 

23

 

(7.0)

42

 

(12.8)

 

40,000

5

 

(1.5)

110

(33.5)

115

 

(35.1)

NA

 

 

NA

 

 

9001 to

60,000

NA

 

 

76

(23.2)

142

 

(43.3)

156

 

(47.5)

NA

 

 

10,000

80,000

NA

 

 

31

(9.4)

103

 

(31.4)

137

 

(41.8)

142

 

(43.3)

(2743 to

100,000

NA

 

 

NA

 

62

 

(18.9)

147

 

(44.8)

157

 

(47.9)

3048)

120,000

NA

 

 

NA

 

NA

 

 

51

 

(15.5)

153

 

(46.6)

 

140,000 4

NA

 

 

NA

 

NA

 

 

 

 

 

 

 

 

 

 

 

 

 

 

16

 

(4.9)

20

 

(6.1)

NOTES:

1.Use only the vent pipe sizes shown for each furnace. It is NOT necessary to choose the smallest diameter pipe possible for venting.

2.NA --- Not allowed. Pressure switch will not close, or flame disturbance may result.

3.Total equivalent vent lengths under 10’ for 40,000 BTUH furnaces from 0 to 2000 ft. (0 to 610 M) above sea level require use of an outlet choke plate .

Failure to use an outlet choke when required may result in flame disturbance or flame sense lockout.

4.Not all furnace families include 140,000 BTUH input models.

5.Vent sizing for Canadian installations over 4500 ft (1370 M) above sea level are subject to acceptance by local authorities having jurisdiction.

6.Size both the combustion air and vent pipe independently, then use the larger size for both pipes.

7.Assume the two 45_ elbows equal one 90_ elbow. Wide radius elbows are desirable and may be required in some cases.

8.Elbow and pipe sections within the furnace casing and at the vent termination should not be included in vent length or elbow count.

9.The minimum pipe length is 5 ft. (1.5 M) linear feet (meters) for all applications.

10.Use 3---in. (76 mm) diameter vent termination kit for installations requiring 4---in. (102 mm) diameter pipe.

915SA

9

Image 9
Contents Limited Warranty Standard FeaturesWeight LB Features and BenefitsMotor HP-SPEED Approx Ship Btuh Afue CFM‡ ESPSpecifications Furnace Components Model Number NomenclatureVenting Accessories Part Number Used With Accessories60100 AIR Delivery CFM Bottom Return with Filter60120 60140Direct Vent 2-PIPE and NON-DIRECT Vent 1-PIPE Maximum Equivalent Vent Length FT. MVenting System Length Calculations Direct Vent 2-PIPE and SINGLE-PIPE Pipe Pipe Diameter-inches mm Return AIR Temperature Minimum Clearances to Combustible MaterialsCOMBUSTION-AIR Pipe for NON-DIRECT 1-PIPE Vent Application Downflow Subbase A97427Casing Width Application Media Filter Cabinet Typical Wiring SchematicDimensional Drawing General Guide SpecificationsCatalog No. PDS915SA---01

915S specifications

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