Beckett CF375 Bedienungsanleitung PDF herunterladen (Seite 3)

RWB 664850 Page 3 Printed in U.S.A.

• If after the re-rate factor is used the required firing rate input exceeds the Adjusted

Maximum Firing Rate for the burner model being applied, a burner model with a higher

Adjusted Maximum Firing Rate will be required.

For this example

: If an appliance operating at 7000 ft. elevation requires a firing rate

input of 2.75 gph, an SF or CF375 burner may be required instead of an AFG burner.

EXAMPLE 2

E-RATING OF THE MAXIMUM FIRING RATE FOR FIXED-TYPE BURNER HEAD @ 7000 FT.

Burner

Model

Head

Maximum Firing

Rate of Head

Elevation Re-rate

Factor @ 7000 ft.

Adjusted Maximum

Firing Rate of Head

AFG F3 1.25 gph X 87.1% = 1.09 gph

AFG F6 1.65 gph X 87.1% = 1.44 gph

AFG F12 2.00 gph X 87.1% = 1.74 gph

AFG F22 2.50 gph X 87.1% = 2.18 gph

AFG F31 3.00 gph X 87.1% = 2.61 gph

AFG L1 1.10 gph X 87.1% = 0.96 gph

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

HEATING LOAD

• If after the re-rate factor is used the required firing rate input exceeds the Adjusted

Maximum Firing Rate for the burner head being applied, a burner head with a higher

Adjusted Maximum Firing rate may be required.

For this example

: If an AFG burner operating at 7000 ft. elevation requires a firing rate

input of 1.15 gph, an F6 head may be required instead of an F3 head.

EXAMPLE 3

E-RATING OF THE MAX. FIRING RATE FOR ADJUSTABLE-TYPE BURNER HEAD SETTING @ 7000 FT.

Burner

Model

Head

Setting

Max. Firing Rate

at Head Setting

Elevation Re-rate

Factor

Adjusted Max. Firing

Rate at Head Setting

AFG V1 1 1.50 gph X 87.1% = 1.31 gph

AFG V1 2 1.75 gph X 87.1% = 1.52 gph

AFG V1 3 2.25 gph X 87.1% = 1.96 gph

AFG V1 4 2.50 gph X 87.1% = 2.18 gph

AFG V1 5 2.75 gph X 87.1% = 2.40 gph

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

HEATING LOAD

1 2 3 4

HEATING LOAD 2
Elevation 2

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