Beckett CF375 Instrukcja Użytkownika Pobierz pdf (Strona 2)

RWB 664850 Page 2 Printed in U.S.A.

Note: All examples are for 7000 ft. elevation.

1.84% x 7 (for 7000 ft.) = 12.9% Æ 100% – 12.9% = 87.1%

EXAMPLE 1

E-RATING OF THE MAXIMUM FIRING RATE FOR BURNERS @ 7000 FT.

Burner

Model

Maximum Firing Rate of

Burner @ Sea Level

Elevation Re-rate

Factor @ 7000 ft.

Adjusted Maximum

Firing Rate

AFG 3.00 gph X 87.1% = 2.61 gph

AF 3.00 gph X 87.1% = 2.61 gph

AFII 150 1.50 gph X 87.1% = 1.31 gph

AFII 85 0.85 gph X 87.1% = 0.74 gph

SF 5.50 gph X 87.1% = 4.79 gph

SR 2.00 gph X 87.1% = 1.74 gph

CF375 3.75 gph X 87.1% = 3.27 gph

O PROVIDE ADEQUATE OXYGEN IN THE COMBUSTION AIR TO MAINTAIN THE FIRING RATE FOR THE

HEATING LOAD

Burner Rating at Sea Level, gph

0.75 1.00 1.25 1.50 1.75 2.00 2.25 2.50 2.75 3.00 3.50 4.00 4.50 5.00

Elevation

(above sea level)

Burner Rating at Elevation above Sea Level, gph

500 ft.

0.75 1.00 1.25 1.50 1.75 2.00 2.25 2.50 2.75 3.00 3.50 4.00 4.50 5.00

1000 ft.

0.75 1.00 1.25 1.50 1.75 2.00 2.25 2.50 2.75 3.00 3.50 4.00 4.50 5.00

1500 ft.

0.75 1.00 1.25 1.50 1.75 2.00 2.25 2.50 2.75 3.00 3.50 4.00 4.50 5.00

2000 ft.

0.75 1.00 1.25 1.50 1.75 2.00 2.25 2.50 2.75 3.00 3.50 4.00 4.50 5.00

2500 ft.

0.72 0.95 1.19 1.43 1.67 1.91 2.15 2.39 2.62 2.86 3.34 3.82 4.29 4.77

3000 ft.

0.71 0.94 1.18 1.42 1.65 1.89 2.13 2.36 2.60 2.83 3.31 3.78 4.25 4.72

3500ft.

0.70 0.94 1.17 1.40 1.64 1.87 2.11 2.34 2.57 2.81 3.27 3.74 4.21 4.68

4000 ft.

0.69 0.93 1.16 1.39 1.62 1.85 2.08 2.32 2.55 2.78 3.24 3.71 4.17 4.63

4500 ft.

0.69 0.92 1.15 1.38 1.61 1.83 2.06 2.29 2.52 2.75 3.21 3.67 4.13 4.59

5000 ft.

0.68 0.91 1.14 1.36 1.59 1.82 2.04 2.27 2.50 2.72 3.18 3.63 4.09 4.54

5500 ft.

0.67 0.90 1.12 1.35 1.57 1.80 2.02 2.25 2.47 2.70 3.15 3.60 4.04 4.49

6000 ft.

0.67 0.89 1.11 1.33 1.56 1.78 2.00 2.22 2.45 2.67 3.11 3.56 4.00 4.45

6500 ft.

0.66 0.88 1.10 1.32 1.54 1.76 1.98 2.20 2.42 2.64 3.08 3.52 3.96 4.40

7000 ft.

0.65 0.87 1.09 1.31 1.52 1.74 1.96 2.18 2.40 2.61 3.05 3.48 3.92 4.36

7500 ft.

0.65 0.86 1.08 1.29 1.51 1.72 1.94 2.16 2.37 2.59 3.02 3.45 3.88 4.31

8000 ft.

0.64 0.85 1.07 1.28 1.49 1.71 1.92 2.13 2.35 2.56 2.98 3.41 3.84 4.26

9000 ft.

0.63 0.83 1.04 1.25 1.46 1.67 1.88 2.09 2.29 2.50 2.92 3.34 3.75 4.17

10000 ft.

0.61 0.82 1.02 1.22 1.43 1.63 1.84 2.04 2.24 2.45 2.86 3.26 3.67 4.08

1 2 3 4

HEATING LOAD 2
Elevation 2

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