Engineering Data | 4445N Tempest®
Natural Gas, USCS Main Air Pressure, (UA pressure tap)
osi "w.c. mbar
4445N-5
0.2 0.3 0.9
1
4
9
16
20
1.7
6.9 17.2
15.6
27.7
34.6
4.3
39
69
86
Air Flow, not burning scfh (Nm 3 /h)
10 900 (291)
Air Flow, scfh
1000 (26.7)
2150 (57.5)
4350 (116.3)
3700 (179)
9200 (246)
10300
Air Flow, (Nm 3 /h)
(275)
Air Orifice UA-DA, "w.c. (mbar) Gas Pressure Stoic. air "w.c. (mbar)
0.1 (0.2) 0.2 (0.5) 0.16 (0.4)
1.0 (2.5) 0.9 (2.2) 0.7 (1.8)
2.6 (6.5) 3.6 (9.0) 3.2 (7.9)
5.5 (13.7) 8.3 (20.7) 7.3 (18.3)
10.3 (25.6) 13.8 (34.3) 12.3 (30.6)
13.0 (32.3)
17.0 (50) 15.2 (38)
Gas Pressure @ 10% excess air "w.c. (mbar)
Max % Excess Air, ignition
600 100 200
1000 1400
1400 1600 1000
1400 1600 1000
1000 1500 1000 1000
800 1000 1000 600
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
500 200
— 30
500
700
Max % XS Fuel, ignition/flame signal
30
30
30
30
30
Flame Length inches (mm) Flame Diameter inches (mm)
22 (559) 4.0 (102)
22 (559) 4.0 (102)
24 (610) 4.0 (102)
24 (610) 4.0 (102)
24 (610) 4.0 (102)
24 (610) 4.0 (102)
4445N-6
0.2 0.3 0.9
1
4
9
16
20
osi "w.c. mbar
1.7
6.9 17.2
15.6
27.7
34.6
4.3
39
69
86
Air Flow, not burning scfh (Nm 3 /h)
17900 (478)
Air Flow, scfh
1800 (48.1)
3400
6800
10600
14400
15700 (420)
Air Flow, (Nm 3 /h)
(91)
(182)
(283)
(385)
Air Orifice UA-DA, "w.c. (mbar) Gas Pressure Stoic. air "w.c. (mbar)
0.05 (0.1) 0.4 (1.0) 0.3 (0.8)
0.3 (0.75) 1.0 (2.5)
2.1 (5.2)
3.9 (9.7)
5.1 (12.7)
1.4 (3.5) 1.1 (2.8)
4.8 (11.9) 4.2 (10.4)
10.2 (25.4) 8.9 (22.1)
17.2 (42.8) 15.0 (37.4)
25.1 (62.5)
Gas Pressure @ 10% excess air "w.c. (mbar)
21.7 (54)
Max % Excess Air, ignition
1000 1200 1200 1000
1000 1400 1400 1200
800 1200 1200 900
800 1200 600 600
600 800 500 500
600 800 700 500
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
Flame Length inches (mm) Flame Diameter inches (mm)
24 (610) 4.0 (102)
24 (610)
24 (610)
24 (610) 5.0 (127)
24 (610) 5.0 (127)
25 (635) 5.0 (127)
4.0 (102) 4.0 (102)
Bulletin 4445/4445N Page 5
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