Bryant 340MAV instruction manual Maximum Allowable Pipe Length FT, Altitude FT

Page 27

TABLE 7—MAXIMUM ALLOWABLE PIPE LENGTH (FT)

ALTITUDE (FT)

UNIT SIZE

TERMINATION

PIPE DIA

 

 

NUMBER OF 90° ELBOWS

 

TYPE

(IN.)*

1

2

 

3

4

5

6

 

 

 

 

024040

2 Pipe or 2-in

1

5

NA

 

NA

NA

NA

NA

 

 

 

 

 

 

 

 

 

 

1-1/2

70

70

 

65

60

60

55

 

036040

Concentric

 

 

 

 

 

 

 

 

 

 

 

2

70

70

 

70

70

70

70

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

024060

2 Pipe or 2-in

1-1/2

20

15

 

10

5

NA

NA

 

036060

 

 

 

 

 

 

 

 

 

Concentric

2

70

70

 

70

70

70

70

 

048060

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

036080

2 Pipe or 2-in

1-1/2

10

NA

 

NA

NA

NA

NA

 

048080

2

55

50

 

35

30

30

20

 

Concentric

 

 

060080

 

 

 

 

 

 

 

 

 

2-1/2

70

70

 

70

70

70

70

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0 to 2000

048100

2 Pipe or 3-in

2

5

NA

 

NA

NA

NA

NA

 

2-1/2

40

30

 

20

20

10

NA

 

060100

Concentric

 

 

 

 

 

 

 

 

 

 

 

3

70

70

 

70

70

70

70

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2 Pipe or 3-in.

2-1/2 one disk

10

NA

 

NA

NA

NA

NA

 

060120

3†

45

40

 

35

30

25

20

 

Concentric

 

 

 

3† no disk

70

70

 

70

70

70

70

 

 

 

 

 

 

 

2-1/2 one disk

5

NA

 

NA

NA

NA

NA

 

060140

2 Pipe or 3-in.

3† one disk

40

35

 

30

25

20

15

 

Concentric

3† no disk

60

56

 

52

48

44

40

 

 

 

 

 

 

4† no disk

70

70

 

70

70

70

70

ALTITUDE (FT)

UNIT SIZE

TERMINATION

PIPE DIA

 

 

NUMBER OF 90° ELBOWS

 

TYPE

(IN.)*

1

2

 

3

4

5

6

 

 

 

 

024040

2 Pipe or 2-in

1-1/2

67

62

 

57

52

52

47

 

Concentric

2

70

70

 

70

70

70

70

 

036040

 

 

 

1–1/2

17

12

 

7

NA

NA

NA

 

 

 

 

 

024060

2 Pipe or 2-in

 

 

 

 

 

 

 

 

 

036060

Concentric

2

70

67

 

66

61

61

61

 

048060

 

 

 

 

 

 

 

 

 

 

036080

2 Pipe or 2-in

2

49

44

 

30

25

25

15

 

048080

 

 

 

 

 

 

 

 

 

Concentric

2-1/2

70

70

 

70

70

70

70

2001 to 3000

060080

 

 

 

048100

2 Pipe or 3-in

2–1/2

35

26

 

16

16

6

NA

 

 

 

060100

Concentric

3

70

70

 

70

70

66

61

 

 

 

 

 

 

 

 

 

 

 

 

 

2 Pipe or 3-in.

3

14

9

 

NA

NA

NA

NA

 

 

 

 

 

 

 

 

 

 

 

060120

3† no disk

70

70

 

63

56

50

43

 

Concentric

 

 

 

 

 

 

 

 

 

 

 

 

 

4† no disk

70

70

 

70

70

70

70

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2 Pipe or 3-in.

3† one disk

20

15

 

10

5

NA

NA

 

 

 

 

 

 

 

 

 

 

 

060140

3† no disk

39

35

 

31

27

23

19

 

Concentric

 

 

 

 

 

 

 

 

 

 

 

 

 

4† no disk

70

70

 

70

70

70

70

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ALTITUDE (FT)

UNIT SIZE

TERMINATION

PIPE DIA

 

 

NUMBER OF 90° ELBOWS

 

TYPE

(IN.)*

1

2

 

3

4

5

6

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

024040

2 Pipe or 2-in

1-1/2

64

59

 

54

49

48

43

 

036040

Concentric

2

70

70

 

70

70

70

70

 

 

 

 

 

 

 

 

 

 

 

 

024060

2 Pipe or 2-in

1–1/2

16

11

 

6

NA

NA

NA

 

036060

 

 

 

 

 

 

 

 

 

Concentric

2

68

63

 

62

57

57

56

 

048060

 

 

 

 

 

036080

2 Pipe or 2-in

2

46

41

 

28

23

22

13

 

048080

 

 

 

 

 

 

 

 

 

Concentric

2-1/2

70

70

 

70

70

70

70

3001 to 4000

060080

 

 

 

048100

2 Pipe or 3-in

2-1/2

33

24

 

15

14

5

NA

 

 

 

060100

Concentric

3

70

70

 

70

66

61

56

 

060120

2 Pipe or 3-in.

3† no disk

65

58

 

51

44

38

31

 

Concentric

4† no disk

70

70

 

70

70

70

70

 

 

 

 

 

2 Pipe or 3-in.

3† one disk

11

6

 

NA

NA

NA

NA

 

060140

3† no disk

30

26

 

22

18

14

10

 

Concentric

 

 

 

4† no disk

70

70

 

70

70

70

70

 

 

 

 

See notes at end of table

—27—

Image 27
Contents Safety Considerations Electrostatic Discharge ESD PrecautionsMultipoise Orientations Unit Size DimensionsCodes and Standards SafetyII. General Installation VI. GAS Piping and GAS Pipe Pressure TestingVII. Electrical Connections Electrostatic Discharge ESD PrecautionsII. Upflow Applications IntroductionApplications GeneralCondensate Trap Tubing Alternate Upflow Orientation Pressure Switch TubingCondensate Trap Tubing Factory-Shipped Orientation Condensate Trap Location Alternate Upflow OrientationIII. Downflow Applications Condensate Trap LocationCondensate Trap Tubing Horizontal Left Tube Configuration IV. Horizontal Left SUPPLY-AIR Discharge Applications Construct a Working PlatformHorizontal Right SUPPLY-AIR Discharge Applications Attic Location and Working Platform Location II. Furnace Location Relative to Cooling Equipment Furnace Location for Proper Condensate DrainageIII. Hazardous Locations II. Installation in Upflow or Downflow ApplicationsInstallation Leveling Legs if Desired III. Installation in Horizontal ApplicationsOpening Dimensions Furnace Plenum Opening Floor Opening CasingWidth II. Ductwork Acoustical Treatment Duct FlangesFilter Information III. Supply AIR ConnectionsIV. Return AIR Connections Filter ArrangementCasings only VI. Bottom Closure PanelVII. GAS Piping Maximum Capacity of PipeElectrical Connections Fire or Explosion HazardIII Accessories WiringPCB II. COMBUSTION-AIR and Vent Piping Electrical DataDirect Venting Removal of Existing Furnaces from Common Vent SystemsControl Center Clearance FT COMBUSTION-AIR and Vent Pipe Termination ClearancesCombustion-Air and Vent Pipe Diameter ExampleCombustion-Air and Vent Pipe Attachment Short Vent 5 to 8 Ft System COMBUSTION-AIR Intake Housing Plug FittingAltitude FT Maximum Allowable Pipe Length FT6001 to 7000‡ Air Intake Housing Plug Fitting Drain Vent Extension Pipe Extended Exposed Sidewall PipesTwo-Pipe Termination Kit IV. Multiventing and Vent Terminations Concentric Vent/Air Termination KitRoof Termination Preferred Sidewall Termination of 12 in. or Less Condensate Drain General II. ApplicationIII. Condensate Drain Protection IV. Heat Pump Mode Heating ModeII. Cooling Mode III. Continuous Blower ModeII. Prime Condensate Trap with Water START-UP Procedures GeneralIV. Adjustments Component TestInducer Housing Drain Cap BTU/CU FT Orifice Manifold 625 650 Only 7001 675 725 8000 775 750 15% 825 2001to 725 750 Only 4001 775 800 825 5000 875 850 900 925 Canada Example 100,000 Btuh Input Furnace Installed AT 4300 FTAltitude Derate Multiplier United StatesSpeed Selector Blower OFF Delay Setup PositionCheck Safety Controls GAS Rate CU FT/HRII. Check Pressure Switch ChecklistCheck Primary Limit Control Combustion AIR Vent Piping CHECKLIST-INSTALLATIONCHECKLIST-START-UP Load Calculation
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