Bryant 355CAV installation instructions Direct Vent 2-Pipe Only

Page 42

355CAV

Table 7 — Maximum Allowable Pipe Length - Ft (M) (Continued)

ALTITUDE

UNIT SIZE

Direct Vent (2-Pipe Only)

 

NUMBER OF 90_ ELBOWS

 

 

 

Termination

Pipe Dia

 

 

 

 

 

 

 

 

 

 

 

(BTUH)

 

 

 

 

 

 

 

 

 

 

 

 

Type

In. (mm)*

1

2

 

3

 

4

 

5

 

6

 

 

 

 

 

 

 

60,000

2 Pipe or 2---In. (51)

1---1/2 (38)

 

35 (10.7)

30 (9.1)

25 (7.6)

20 (6.1)

15 (4.6)

10 (3.0)

 

Concentric

2 (51)

 

70 (21.3)

70 (21.3)

68

(20.7)

67

(20.4)

66

(20.1)

64

(19.5)

 

 

 

 

 

2 Pipe or 2---In. (51)

1---1/2 (38)

 

20 (6.1)

15 (4.6)

10 (3.0)

5

(1.5)

 

NA

 

NA

 

80,000

 

 

 

 

 

 

 

 

 

62

 

 

6001 to 7000

Concentric

2 (51)

 

70 (21.3)

70 (21.3)

68

(20.7)

67

(20.4)

 

57

(17.4)

 

 

(18.9)

(1829 to 2134)‡

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

100,000

2 Pipe or 2---In. (51)

2 (51)

 

31 (9.4)

26 (7.9)

21 (6.4)

16 (4.9)

11 (3.4)

6

(1.8)

 

 

 

Concentric

2---1/2 (64)

 

70 (21.3)

70 (21.3)

68

(20.7)

67

(20.4)

66

(20.1)

64

(19.5)

 

 

 

 

120,000

2 Pipe or 3---In. (76)

3 (76) one disk†

49 (14.9)

48 (14.6)

47

(14.3)

45

(13.7)

44

(13.4)

43

(13.1)

 

Concentric

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ALTITUDE

UNIT SIZE

Termination

Pipe Dia

 

 

NUMBER OF 90_ ELBOWS

 

 

 

(BTUH)

Type

In. (mm)*

1

2

 

3

 

4

 

5

 

6

 

 

 

 

 

 

60,000

2 Pipe or 2---In. (51)

1---1/2 (38)

 

32 (9.8)

27 (8.2)

22 (6.7)

17 (5.2)

12 (3.7)

7

(2.1)

 

Concentric

2 (51)

 

66 (20.1)

65 (19.8)

63

(19.2)

62

(18.9)

60

(18.3)

59

(18.0)

 

 

 

 

80,000

2 Pipe or 2---In. (51)

1---1/2 (38)

 

18 (5.5)

13 (4.0)

8

(2.4)

 

NA

 

NA

 

NA

7001 to 8000

Concentric

2 (51)

 

66 (20.1)

65 (19.8)

63

(19.2)

62

(18.9)

57

(17.4)

52

(15.8)

 

 

(2134 to 2438)‡

 

 

 

 

 

 

 

 

 

 

 

 

100,000

2 Pipe or 2---In. (51)

2 (51)

 

29 (8.8)

24 (7.3)

19 (5.8)

14 (4.3)

9

(2.7)

 

NA

 

Concentric

2---1/2 (64)

 

66 (20.1)

65 (19.8)

63

(19.2)

62

(18.9)

60

(18.3)

59

(18.0)

 

 

 

 

120,000

2 Pipe or 3---In. (76)

3 (76) one disk†

46 (14.0)

44 (13.4)

43

(13.1)

41

(12.5)

40

(12.2)

38

(11.6)

 

Concentric

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ALTITUDE

UNIT SIZE

Termination

Pipe Dia

 

 

NUMBER OF 90_ ELBOWS

 

 

 

(BTUH)

Type

In. (mm)*

1

2

 

3

 

4

 

5

 

6

 

 

 

 

 

 

60,000

2 Pipe or 2---In. (51)

1---1/2 (38)

 

30 (9.1)

25 (7.6)

20 (6.1)

15 (4.6)

10 (3.0)

5

(1.5)

 

Concentric

2 (51)

 

62 (18.9)

60 (17.8)

58

(17.7)

56

(17.1)

55

(16.8)

53

(16.2)

 

 

 

 

80,000

2 Pipe or 2---In. (51)

1---1/2 (38)

 

17 (5.2)

12 (3.1)

7

(2.1)

 

NA

 

NA

 

NA

8001 to 9000

Concentric

2 (51)

 

62 (18.9)

60 (18.3)

58

(17.7)

56

(17.1)

51

(15.5)

46

(14.0)

 

 

(2438 to 2743)‡

100,000

2 Pipe or 2---In. (51)

2 (51)

 

27 (8.2)

22 (6.7)

17 (5.2)

12 (3.7)

7

(2.1)

 

NA

 

Concentric

2---1/2 (64)

 

62 (18.9)

60 (18.3)

58

(17.7)

56

(17.1)

55

(16.8)

53

(16.2)

 

 

 

 

120,000

2 Pipe or 3---In. (76)

3 (76) one disk†

43 (13.1)

41 (12.5)

39

/11.9)

37

(11.3)

35

(10.7)

34

(10.4)

 

Concentric

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ALTITUDE

UNIT SIZE

Termination

Pipe Dia

 

 

NUMBER OF 90_ ELBOWS

 

 

 

(BTUH)

Type

In. (mm)*

1

2

 

3

 

4

 

5

 

6

 

 

 

 

 

 

60,000

2 Pipe or 2---In. (51)

1---1/2 (38)

 

27 (8.2)

22 (6.7)

17 (5.2)

12 (3.7)

7

(2.1)

 

NA

 

Concentric

2 (51)

 

57 (17.4)

55 (16.8)

53

(16.2)

51

(15.5)

49

(14.9)

47

(14.3)

 

 

 

 

80,000

2 Pipe or 2---In. (51)

1---1/2 (38)

 

15 (4.6)

10 (3.0)

5

(1.5)

 

NA

 

NA

 

NA

9001 to 10000

Concentric

2 (51)

 

57 (17.4)

55 (16.8)

53

(16.2)

51

(15.5)

46

(14.0)

41

(12.5)

 

 

(2743 to 3048)‡

 

 

 

 

 

 

 

 

 

 

 

 

 

100,000

2 Pipe or 2---In. (51)

2 (51)

 

24 (7.3)

19 (5.8)

14 (4.3)

9

(2.7)

 

NA

 

NA

 

Concentric

2---1/2 (64)

 

57 (17.4

55 (16.8)

53

(16.2)

51

(15.5)

49

(14.9)

47

(14.3)

 

 

 

 

120,000

2 Pipe or 3---In. (76)

3 (76) one disk†

39 (11.9)

37 (11.3)

35

(10.7)

33

(10.1)

31 (9.5)

29 (8.8)

 

Concentric

 

 

 

 

 

 

 

 

 

 

 

 

 

 

*Disk usage---Unless otherwise stated, use perforated disk assembly (factory ---supplied in loose parts bag). { Wide radius elbow.

} Vent sizing for Canadian installations over 4500 ft. (1370M) above sea level are subject to acceptance by the local authorities having jurisdiction. NA---Not 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. Size both the combustion ---air and vent pipe independently, determine the smallest diameter allowed by the table for each pipe, then use the larger diameter for both pipes.

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

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

5. The minimum pipe length is 5 ft. (1.5M) for all applications.

42

Image 42
Contents Installation Instructions Required Notice for Massachusetts Installations Table of Contents Safety ConsiderationsDimensions In. / mm Environmental Hazard355CAV Clearances to Combustibles Introduction Electrostatic Discharge ESD PrecautionsCodes and Standards Unit Damage HazardApplications Upflow ApplicationProperty Damage Hazard Condensate Trap Alternate Upflow Orientation Carbon Monoxide Poisoning HazardCondensate Trap Tubing Alternate Upflow Orientation Upper Inducer Housing Drain Connection Condensate Trap Field Drain AttachmentCondensate Trap Freeze Protection Downflow Applications Condensate Trap LocationHorizontal Left Tube Configuration Horizontal Left SUPPLY-AIR Discharge ApplicationsCombustion AIR Intake Vent Property Damage Construct a Working PlatformUnit Operation Hazard Horizontal Right SUPPLY-AIR Discharge Applications Condenste Trap Field Drain AttachmentProhibit Installation on Back LocationFire or Death Hazard Hazardous LocationsFIRE, EXPLOSION, Injury or Death Hazard Installation in Horizontal Applications InstallationInstallation in Upflow or Downflow Applications Leveling Legs If DesiredFurnace, Plenum, and Subbase Installed on a Angle AIR Ducts Fire Hazard FIRE, Carbon Monoxide and Poisoning HazardUnit MAY not Operate Gas Piping Fire or Explosion HazardRemoving Bottom Closure Panel Wiring Electrical Shock HazardDisconnect Switch and Furnace Electrical Shock and Fire HazardAccessories Fire or Electrical Shock HazardRemoval of Existing Furnaces from Common Vent Systems AIR for Combustion and Ventilation Fire and Explosion HazardCombustion-Air and Vent Pipe Diameter Pipe Fittings Cement Description Marked on PrimersFurnace Control Direct Vent Termination Clearance Ventilated Combustion Air Vent Termination Clearance Vent Pipe Termination for Ventilated Combustion Air System Combustion AIR Pipe Unit Corrosion HazardAttachment of Combustion Air Intake Housing Plug Fitting Combustion Air Termination Ventilated Combustion Air OptionCarbon Monoxide Poisoning Property Damage Hazard Vent PipeCombustion Air Termination-Direct Vent / 2-Pipe System Attachment of Vent Pipe304.8mm minimum 76.2mm minimum Vent Termination Kit Direct Vent / 2-Pipe System Only Vent TerminationExtended Exposed Sidewall Pipes Two-Pipe Termination Kit Direct Vent / 2-Pipe System OnlyWinter Design Maximum Allowable Pipe Length Ft M Number of 90 Elbows BtuhDirect Vent 2-Pipe Only Application Condensate DrainMulti-venting and Vent Terminations Personal Injury HazardContinuous Fan CF Setup Switches START-UP, Adjustment and Safety CheckAir Conditioning A/C Setup Switches Additional Setup Switches SW4Example of Setup Switch in Off Position Prime Condensate Trap with WaterWiring Diagram Inducer Housing Drain Tube Furnace Setup Switch DescriptionSequence of Operation Purge Gas LinesTwo-Stage Thermostat and Two-Stage Low / High Heating Two-Stage Thermostat and Two-Stage Medium/High HeatingThermidistat Mode Continuous Blower Speed Selection from Thermostat Super Dehumidify ModeContinuous Blower Mode Heat PumpStep-Modulating Furnace with Single-Speed Air Conditioning Pump Furnace and Two-Speed Air Conditioner Furnace and Two-Speed Heat PumpSet Gas Input Rate Redundant Automatic Gas ValveBurner Orifice Altitude AVG. GAS 675 Altitude Derate Multiplier for USA Burner FlameSet Temperature Rise Gas Rate cu Ft/HrSet Thermostat Heat Anticipator Check Pressure Switches ChecklistCheck Safety Controls Check Primary Limit ControlChecklist Installation Combustion and Vent PipingCatalog No. II355CAV---060---4
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355CAV specifications

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