HP 422690 I manual Altitude Furnace Pipe, See Note Input DIA

Page 8

Table 1. Maximum Pipe Length --Direct Vent

 

 

 

 

ALLOWABLE PIPE LENGTH (feet of each pipe)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ALTITUDE

FURNACE

 

PIPE

NUMBER OF SWEEP ELBOWS (each pipe)

(SEE NOTE 1)

 

 

 

 

INPUT

 

DIA.

1

2

3

4

5

 

6

 

7

8

 

 

 

 

54,000

2"

40

40

40

40

40

 

40

 

40

40

 

 

 

 

72,000

2"

40

40

37

33

30

 

27

 

23

20

 

 

 

 

72,000

3"

40

40

40

40

40

 

40

 

40

40

 

 

 

0'-1000'

90,000

2"

30

26

22

19

15

 

11

 

-

-

 

 

 

 

90,000

3"

40

40

40

40

40

 

40

 

40

40

 

 

 

 

108,000

3"

40

40

40

40

40

 

40

 

40

40

 

 

 

 

126,000

3"

40

40

40

40

35

 

30

 

25

20

 

 

 

 

54,000

2"

40

40

40

40

40

 

40

 

40

40

 

 

 

 

72,000

2"

40

37

33

29

25

 

21

 

19

15

 

 

 

 

72,000

3"

40

40

40

40

40

 

40

 

40

40

 

 

 

1001'-2000'

90,000

2"

25

22

19

16

12

 

-

 

-

-

 

 

 

 

90,000

3"

40

40

40

40

40

 

40

 

40

40

 

 

 

 

108,000

3"

40

40

40

40

40

 

40

 

40

40

 

 

 

 

126,000

3"

40

38

33

28

22

 

16

 

11

-

 

 

 

 

54,000

2"

40

40

40

40

40

 

40

 

40

40

 

 

 

 

72,000

2"

35

33

29

25

21

 

17

 

13

-

 

 

 

2001'-3000'

72,000

3"

40

40

40

40

40

 

40

 

40

40

 

 

 

90,000

2"

22

19

16

14

-

 

-

 

-

-

 

 

 

 

90,000

3"

40

40

40

40

40

 

40

 

40

40

 

 

 

 

108,000

3"

40

40

40

40

40

 

40

 

40

40

 

 

 

 

126,000

3"

35

30

25

20

15

 

10

 

-

-

 

 

 

 

54,000

2"

40

40

40

40

40

 

40

 

40

40

 

 

 

 

72,000

2"

30

28

26

24

22

 

20

 

18

17

 

 

 

 

72,000

3"

40

40

40

40

40

 

40

 

40

40

 

 

 

3001'-4000'

90,000

2"

15

13

11

-

-

 

-

 

-

-

 

 

 

 

90,000

3"

40

40

40

40

40

 

40

 

40

40

 

 

 

 

108,000

3"

40

40

40

40

40

 

40

 

40

40

 

 

 

 

126,000

3"

30

25

20

15

10

 

-

 

-

-

 

 

 

 

126,000

 

3"

40

40

40

40

35

 

30

 

25

20

 

See Note 2 below.

 

 

54,000

2"

40

40

40

40

40

 

40

 

40

40

 

 

 

 

72,000

2"

26

22

17

14

12

 

-

 

-

-

 

 

 

4001'-5000'

72,000

3"

40

40

40

40

40

 

40

 

40

40

 

 

 

90,000

3"

40

40

40

40

40

 

40

 

40

40

 

 

 

 

108,000

3"

40

40

40

35

30

 

25

 

20

15

 

 

 

 

108,000

 

3"

40

40

40

40

40

 

40

 

40

40

 

See Note 2 below.

 

 

126,000

 

3"

40

40

40

40

35

 

30

 

25

20

 

 

 

 

54,000

2"

40

40

40

40

40

 

40

 

40

40

 

 

 

 

72,000

2"

21

18

14

11

-

 

-

 

-

-

 

 

 

 

72,000

3"

40

40

40

40

40

 

40

 

40

40

 

 

 

5001'-6000'

90,000

3"

40

40

40

40

40

 

40

 

40

40

 

 

 

 

108,000

3"

40

35

30

25

20

 

15

 

10

-

 

 

 

 

108,000

 

3"

40

40

40

40

40

 

40

 

40

40

 

See Note 2 below.

 

 

126,000

 

3"

40

40

40

40

35

 

30

 

25

20

 

 

 

 

54,000

 

2"

40

40

40

40

40

 

40

 

40

40

 

 

 

 

72,000

 

2"

40

40

40

40

36

 

32

 

28

24

 

 

 

 

72,000

 

3"

40

40

40

40

40

 

40

 

40

40

 

 

 

6001'-7000'

90,000

 

3"

40

40

40

40

40

 

40

 

40

40

 

See Note 2 below.

 

 

108,000

 

3"

40

40

40

40

40

 

40

 

40

40

 

 

 

 

126,000

 

3"

40

40

40

40

35

 

30

 

25

20

 

 

 

 

54,000

 

2"

40

40

40

40

40

 

40

 

40

40

 

 

 

 

72,000

 

2"

40

40

40

37

35

 

32

 

28

24

 

 

 

 

72,000

 

3"

40

40

40

40

40

 

40

 

40

40

 

 

 

7001'-8000'

90,000

 

3"

40

40

40

40

40

 

40

 

40

40

 

See Note 2 below.

 

 

108,000

 

3"

40

40

40

40

40

 

40

 

40

40

 

 

 

 

126,000

 

3"

40

40

40

40

35

 

30

 

25

20

 

 

 

 

54,000

 

2"

40

40

40

40

40

 

40

 

40

40

 

 

 

 

72,000

 

2"

40

40

37

34

31

 

28

 

24

21

 

 

 

 

72,000

 

3"

40

40

40

40

40

 

40

 

40

40

 

 

 

8001'-9000'

90,000

 

3"

40

40

40

40

40

 

40

 

40

40

 

See Note 2 below.

 

 

108,000

 

3"

40

40

40

40

40

 

40

 

40

40

 

 

 

 

126,000

 

3"

40

40

40

35

30

 

25

 

20

15

 

 

 

 

54,000

 

2"

40

40

40

40

40

 

40

 

40

40

 

 

 

 

72,000

 

2"

40

37

35

31

27

 

24

 

21

18

 

 

 

 

72,000

 

3"

40

40

40

40

40

 

40

 

40

40

 

 

 

9001'-10000'

90,000

 

3"

40

40

40

40

40

 

40

 

40

40

 

See Note 2 below.

 

 

108,000

 

3"

40

40

40

40

40

 

40

 

40

40

 

 

 

 

126,000

 

3"

40

35

30

25

20

 

15

 

-

-

 

 

NOTE 1: The table assumes the use of sweep elbows. If using hard 90? elbows, the vent length should be decreased an additional 3 feet for every elbow used.

NOTE 2: The shaded portions of the table require the high altitude pressure switch in order to operate the furnace at the listed vent lengths.

Page 8

Installer’s Information Manual

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Contents
?? What to do if YOU Smell GAS Important Safety Rules Table of ContentsMeeting Codes Determining Best Furnace LocationFurnace Dimensions and Clearances General Venting Guidelines PVC Pipe Installation InstructionsProviding Venting and Combustion AIR Termination Location and Clearances Existing Vent ConsiderationsDirect or NON-DIRECT VENTING? United StatesDirect Venting Instructions two pipe system Determining Vent LengthAltitude Furnace Pipe See Note Input DIANON-DIRECT Venting Instructions one pipe system DIRECT-VENT TerminationAllowable Pipe Length feet NON-DIRECT Vent Termination Combustion and Ventilation AIR non-direct ventUnconfined Space Installation non-direct vent Area PER Diameter Given Pipe Opening Installing GAS Piping InstallationTesting for Leaks Condensate DrainInstalling Electrical Wiring Volt WiringFurnace Wiring Diagram Sequence of Operation Installing Duct System Selecting and Installing Filter CabinetsFilter Cabinets GAS Motor Disposable HighHorse AIR Filter Velocity WashableGAS Supply Pressure and Pilot Adjustment Pilot Flame AdjustmentChecks Before Starting Furnace Checking GAS Supply PressureNatural GAS Input Rate Manifold Pressure AdjustmentChecking GAS Input Rate Propane LP GAS Input Rate Derating for High AltitudeDetermining Correct Orifice Size Heating Value Changing Main Burner OrificesGAS Adjusting Blower Speed Wire ColorMeasuring Duct System Static Pressure GAS Motor AIR Conditioning Tonnage Input SizeMeasuring AIR Temperature Rise Checking ControlsSetting Blower Timings Maintaining Furnace in Good Working OrderAccessories Other Information Publications
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