Combustion Catalog | Fives North American

Engineering Data | 4445N Tempest®

Natural Gas, USCS Main Air Pressure, (UA pressure tap), "w.c.

4445N-2

osi

0.2

1

4

9

16

20

24

"w.c. 0.3

1.7

6.9

15.6

27.7

34.6

41.5

Air Flow, not burning (scfh)

2320 2065

Air Flow, (scfh)

235 0.4 0.3 200 200 200 150

500

1020

1530

2350 24.8 22.0 1600 1600 1700 1600

2625 29.6

Air Orifice UA-DA, (in. w.c.)

1.1

4.7 4.9

11.6 9.8

19.6 18.1

Gas Pressure @ 10% excess air "w.c.

1.4

27.5

Max % Excess Air, ignition

300 300 300 300

1000 1000 1000 1000

1500 1400 1400 1400

1400 1400 1400 1400

1800 1700 2000 1700

Max % Excess Air, Flame Rod flame signal Max % Excess Air, UV flame signal S, M length Max % Excess Air, UV flame signal L, XL Length

Max % XS Fuel, ignition/flame signal

30

30

30

30

30

30

30

Flame Length (in) Flame Diameter (in)

8 2

9 2

10

10

11

12

12

2

2

2

2

2

4445N-3

osi

0.2

1

4

9

16

20

24

"w.c. 0.3

1.7

6.9

15.6

27.7

34.6

41.5

Air Flow, not burning (scfh)

3650 3350 22.0 14.8 1900 1900 1900 1900

Air Flow, (scfh)

3450

825

1650

2500

3850

4100

Air Orifice UA-DA, (in. w.c.)

0.2 0.2

1.3

5.3 4.1

12.1 9.5

27.5 18.4

33 22

Gas Pressure @ 10% excess air "w.c.

1.1

Max % Excess Air, ignition

300 300 300

1000 1000 1000

1100 1100 1100 1100

1300 1300 1300 1300

1700 1800 2000 2000

1700 1700 2000 2000

Max % Excess Air, Flame Rod flame signal Max % Excess Air, UV flame signal S, M length Max % Excess Air, UV flame signal L, XL Length

150

400

Max % XS Fuel, ignition/flame signal

30

30

30

30

30

30

30 20 3.0

Flame Length (in) Flame Diameter (in)

12

14

16

16

16

16

3.0

2.5

2.0

2.0

2.5

2.0

4445N-4-A

osi

0.2

1

4

9

16

20

24

"w.c. 0.3

1.7

6.9

15.6

27.7

34.6

41.5

Air Flow, not burning (scfh)

6600 5800

Air Flow, (scfh)

550

1300

2700

4300

6600 25.0 21.0 1400 1700 1400 1400

7400 30.4 24.6 1200 1700 1200 1200

Air Orifice UA-DA, (in. w.c.)

0.2 0.2

1.1

1.5

10.8

19.6 18.1

Gas Pressure @ 10% excess air "w.c.

1.4

4.3

8.1

Max % Excess Air, ignition

400 350 800 800

700 700 800 800

1100 1100 1100 1100

1400 1600 1400 1400

1200 1600 1000 1000

Max % Excess Air, Flame Rod flame signal Max % Excess Air, UV flame signal S, M length Max % Excess Air, UV flame signal L, XL Length

Max % XS Fuel, ignition/flame signal

30

30

30

30

30 20

30 20

30 20 5.0

Flame Length (in) Flame Diameter (in)

14

14

18

18

3.0

4.0

4.0

4.0

4.0

4.0

Bulletin 4445/4445N Page 3

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