Beckett RWF40 CG15 Manuel D’Utilisation

Mount the burner to the appliance. The burner specifi ed 
for packaged equipment will have a fl ange welded for the 
required insertion. Follow the appliance manufacturer’s 
instructions for mounting.

In the absence of instructions, or for retrofi ts, make sure 
that the air tube insertion dimension, measured along 
the side of the air tube from the welded fl ange to the end 
of burner air tube, is correct.

 

If this dimension cannot be achieved, protect the 
end of the air tube by installing a suitable ceramic 
refractory material such as a refractory mill board 
capable of withstanding at least 2300 degrees F. 
The entry hole diameter in the appliance should 
be 1” larger than the air tube to facilitate ease of 
installation and provide adequate protection.
Referring to Figure 6, if the front plate opening (C) 
in the boiler is larger than the burner fl ange bolt 
circle, then a custom mounting plate (A) of at least 
1/4” thickness must be used with a suitable high-
temperature refractory material anchored on the fi re-
side. A suitable high-temperature gasket (B) must be 
used for an effective seal.
Attach the plate and gasket to the boiler and tighten 
the mounting nuts or bolts securely.
Verify that the air tube is ¼” back from fl ush (see 
Figure 2), and there is nothing blocking the fl ame 
zone that could cause fl ame impingement.

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The end of the air tube must not extend into the 
combustion chamber unprotected unless it has 
been factory-tested and specifi ed by the appliance 
manufacturer. 
The end of the air tube should be set back ¼” 
from fl ush with the refractory inside wall to prevent 
damage from overheating.
Refer to the instructions outlined in this section for 
methods of additional protection.

y

y

y

A =  Burner mounting fl ange

B =  Gasket

C =  Appliance mounting plate

Pieces of tape can be cut loose during installation 
and lodge in gas valves causing cutoff seal 
problems.
Tefl on tape ‘lubricates’ pipe threads, allowing iron 
pipes to penetrate too deeply into aluminum valve 
bodies causing distortion and leakage.
Use only pipe sealant compounds that are resistant 
to the gas being used.

y

y

y

All gas piping installation must 
comply with the latest edition of the 

National Fuel Gas Code ANSI Z223.1 (NFPA 54) and 
other applicable local codes.

The gas supply system must be sized to deliver at 
least the minimum required pressure to the gas train 
inlet.  Contact your local gas utility for verifi cation of 
gas pressures, allowable pressure drops, and any local 
piping code requirements.  Refer to Figure 7 for an 
illustration of a gas piping layout and refer to Table 2 for 
pipe sizing.