Bryant 345MAV Ðmaximum Allowable Vent Pipe Length FT, 5001 to 6000², 6001 to 7000², 7001 to 8000²

Page 26

TABLE 4ÐMAXIMUM ALLOWABLE VENT PIPE LENGTH (FT) Continued

ALTITUDE (FT)

UNIT SIZE

VENT PIPE

 

 

NUMBER OF 90° ELBOWS

 

 

DIAMETER (IN.)

1

2

 

3

4

 

5

6

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

024040

1-1/2

57

52

 

47

42

 

40

35

 

036040

2

70

70

 

70

70

 

70

70

 

 

 

 

 

 

 

 

 

 

 

 

024060

1-1/2

14

9

 

NA

NA

 

NA

NA

 

036060

 

 

 

 

 

 

 

 

 

 

2

60

55

 

54

49

 

48

47

 

048060

 

 

5001 to 6000²

 

 

 

 

 

 

 

 

 

 

036080

2

41

36

 

23

18

 

17

8

 

048080

 

 

 

 

 

 

 

 

 

 

2-1/2

70

70

 

70

70

 

70

70

 

060080

 

 

 

 

 

 

 

 

 

 

 

 

 

 

048100

2-1/2

29

21

 

12

11

 

NA

NA

 

060100

3

70

67

 

62

57

 

52

47

 

060120

3*

53

52

 

50

49

 

48

47

 

 

 

 

 

 

 

 

 

 

 

ALTITUDE (FT)

UNIT SIZE

VENT PIPE

 

 

NUMBER OF 90° ELBOWS

 

 

DIAMETER (IN.)

1

2

 

3

4

 

5

6

 

 

 

 

 

024040

1-1/2

53

48

 

43

38

 

37

32

 

036040

2

70

70

 

68

67

 

66

64

 

024060

1-1/2

13

8

 

NA

NA

 

NA

NA

 

036060

 

 

 

 

 

 

 

 

 

 

2

57

52

 

50

45

 

44

43

 

048060

 

 

6001 to 7000²

 

 

 

 

 

 

 

 

 

 

036080

2

38

33

 

21

16

 

15

6

 

048080

 

 

 

 

 

 

 

 

 

 

2-1/2

70

70

 

68

67

 

66

64

 

060080

 

 

 

 

 

 

 

 

 

 

 

 

 

 

048100

2-1/2

27

19

 

10

9

 

NA

NA

 

060100

3

68

63

 

58

53

 

48

43

 

 

 

 

 

 

 

 

 

 

 

 

060120

3*

49

48

 

47

45

 

44

43

 

 

 

 

 

 

 

 

 

 

 

ALTITUDE (FT)

UNIT SIZE

VENT PIPE

 

 

NUMBER OF 90° ELBOWS

 

 

DIAMETER (IN.)

1

2

 

3

4

 

5

6

 

 

 

 

 

024040

1-1/2

49

44

 

39

34

 

33

28

 

036040

2

66

65

 

63

62

 

60

59

 

024060

1-1/2

12

7

 

NA

NA

 

NA

NA

 

036060

 

 

 

 

 

 

 

 

 

 

2

53

48

 

46

41

 

40

38

 

048060

 

 

7001 to 8000²

036080

2

36

31

 

19

14

 

12

NA

 

048080

 

 

 

 

 

 

 

 

 

 

2-1/2

66

65

 

63

62

 

60

59

 

060080

 

 

 

048100

2-1/2

25

17

 

8

7

 

NA

NA

 

060100

3

63

58

 

53

48

 

43

38

 

060120

3*

46

44

 

43

41

 

40

38

ALTITUDE (FT)

UNIT SIZE

VENT PIPE

 

 

NUMBER OF 90° ELBOWS

 

 

DIAMETER (IN.)

1

2

 

3

4

 

5

6

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

024040

1-1/2

46

41

 

36

31

 

29

24

 

036040

2

62

60

 

58

56

 

55

53

 

 

 

 

 

 

 

 

 

 

 

 

024060

1-1/2

11

6

 

NA

NA

 

NA

NA

 

036060

 

 

 

 

 

 

 

 

 

 

2

49

44

 

42

37

 

35

34

 

048060

 

 

8001 to 9000²

036080

2

33

28

 

17

12

 

10

NA

 

048080

 

 

 

 

 

 

 

 

 

 

2-1/2

62

60

 

58

56

 

55

53

 

060080

 

 

 

048100

2-1/2

23

15

 

7

5

 

NA

NA

 

060100

3

59

54

 

49

44

 

39

34

 

060120

3*

43

41

 

39

37

 

35

34

 

 

 

 

 

 

 

 

 

 

 

* Wide radius elbow.

²Vent sizing for Canadian installations over 4500 ft (1370 m) above sea level are subject to acceptance by the local authorities having jurisdiction. NAÐNot Allowed; pressure switch will not make.

NOTES:

1. Do not use pipe size greater than those specified in table or incomplete combustion, flame disturbance, or flame sense lockout may occur.

2. Assume two 45° elbows equal one 90° elbow. Long radius elbows are desirable and may be required in some cases.

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

4. The minimum pipe length is 5 ft for all applications.

Ð26Ð

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Contents Electrostatic Discharge ESD Precautions Ð1ÐÐ2Ð Dimensions→ ÐDimensional Drawing Unit SizeMinimum Inches Clearance to Combustible Construction Safety ConsiderationsElectrostatic Discharge ESD Precautions → ÐClearances to CombustiblesII. Upflow Applications IntroductionApplications General Condensate Trap Location Factory-Shipped OrientationÐ5Ð Condensate Trap Location Alternate Upflow OrientationCondensate Trap Field Drain Attachment Pressure Switch TubingÐ6Ð Condensate Trap Location Condensate Trap Freeze ProtectionIII. Downflow Applications Condensate Trap TubingIV. Horizontal Left SUPPLY-AIR Discharge Applications Ð8ÐÐ9Ð Horizontal Right SUPPLY-AIR Discharge ApplicationsConstruct a Working Platform ÐAttic Location and Working Platform Front Upflow or Downflow Horizontal II. Furnace Location Relative to Cooling Equipment II. Unconfined Space III. Hazardous LocationsAIR for Combustion and Ventilation General III. Confined SpaceCombustion AIR from Outdoors Through Horizontal Ducts Installation Leveling Legs if DesiredCombustion AIR from Outdoors Through Vertical Ducts Furnace Casing Width II. Installation on a Concrete SlabOpening Dimensions General Requirements IV. Installation in Horizontal ApplicationsAIR Ducts Ductwork acoustical treatmentÐfilter Information Return Air ConnectionsVI. Filter Arrangement VII. Bottom Closure PanelVIII. GAS Piping 171⁄2-IN. Wide Casings onlyNominal Length of Pipe FT Iron Internal Diameter Size Ðmaximum Capacity of Pipe CU FT PER HRElectrical Connections Ðelectrical Data WiringLength FT³ CKT BKR Amps Phase Amps SizeÐWiring Diagram Venting II -V WiringIII. Accessories Removal of Existing Furnaces from Common Vent SystemsCombustion Air Pipe II. COMBUSTION-AIR and Vent PipingGeneral ÐCombustion-Air Inlet Pipe Assembly 4001 to 5000² Ðmaximum Allowable Vent Pipe Length FT3001 to 6001 to 7000² Ðmaximum Allowable Vent Pipe Length FT5001 to 6000² 7001 to 8000²ÐShort Vent 5 to 8 Ft System 9001 to 10,000²Vent Extension Pipe 040 060 080 100 120Condensate Drain General III. Vent TerminationIV. Multiventing Ðvent Pipe Termination ClearancesÐRoof Termination Preferred III. Continuous Blower Mode Heating ModeII. Cooling Mode IV. Heat Pump ModeComponent Test Sequence START-UP Procedures GeneralComponent Test II. Prime Condensate Trap with WaterIII. Purge GAS Lines → ÐInducer Housing Drain TubeIV. Adjustments Set Gas Input RateBTU/CU FT Altitude5000 Only4001 Only 50018000 7001775 Only 8001Altitude Derate Multiplier Factor for U.S.A Ðaltitude Derate Multiplier for U.S.AExample Ðgas Rate CU FT/HR Set Temperature RiseBlower Off Delay Heat Mode ±SPEED SelectorChecklist Check Safety Controls Check Primary Limit ControlII. Check Pressure Switch Load Calculation ChecklistðinstallationCHECKLISTÐSTART-UP Vent Piping
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345MAV specifications

The Bryant 345MAV is a premier choice in the realm of residential heating and cooling systems, encapsulating advanced technologies, high efficiency, and remarkable performance. Designed for homeowners seeking reliability and comfort, this model exemplifies modern HVAC (Heating, Ventilation, and Air Conditioning) innovations.

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Comfort also extends to the user experience with the inclusion of a smart thermostat option. This integration allows homeowners to manage their heating and cooling systems remotely, enhancing convenience and control. Programmable settings can optimize energy use based on individual schedules, facilitating both comfort and savings.

In summary, the Bryant 345MAV is a top-tier solution for residential climate control, blending energy efficiency, innovative technology, and unmatched reliability. With its variable-speed operation, environmentally friendly refrigerant, and smart features, the 345MAV represents a significant advancement in the HVAC field. Homeowners investing in this model can expect a system that not only meets their heating and cooling needs but exceeds them in terms of efficiency and comfort.
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