Beckett RWF40 CG15 Manuel D’Utilisation

CG15, CG25, CG50 Burner Manual

to Furnace Pressure Drop curves of Figures 14A, 14B, 
and 14C are correct for both propane and natural gas.  
That is also why a gas train adjusted for the burner’s 
natural gas requirements will be correctly adjusted for 
its propane requirements.  R. W. Beckett provides the 
same pressure regulating safety shutoff valve in the gas 
train (usually a Honeywell V4944B) for both natural gas 
and propane.  The valve is marked for natural gas due 
to its primary usage in a pressure range normally used 
by natural gas appliances.  It is safe and effective for 
propane usage in this design application.

Optional – Gas trains for IRI and FM are available and 
must be specifi ed when ordering a burner.  

Verify – Verify that the train components are not 
damaged and all piping and fi ttings are clean inside and 
out.  The gas train is normally shipped as components 
and must be assembled and installed at the site.  

 
Vent Lines – Install vent lines to any gas valve 
component that requires atmospheric air pressure to 
balance a diaphragm.  Vent lines must be run to the 
outdoors, with the termination point away from fresh 
air intakes and windows. The terminal opening must 
be fi tted with a wire mesh screen to block insects and 
other contaminants from entering the vent and must 
be mounted in such a position that water, ice, dirt, or 
any other foreign matter cannot infi ltrate and block the 
vent piping. Make sure the fi nal assembly is anchored 
securely. 

(IF USED)

BURNER

HGPS

LGPS

MSC

MLTC

PG

S

SSOV1

TC

U

2PRV

ITEM DESCRIPTION
HIGH GAS PRESSURE SWITCH
LOW GAS PRESSURE SWITCH
MAIN SHUTOFF COCK
MAIN LEAK TEST COCK
PRESSURE GAUGE
STRAINER
SAFETY SHUTOFF VALVE #1
TEST COCK
UNION
TWO POSITION REGULATING VALVE

Install a full-size drip leg or dirt pocket in the piping 

directly ahead of the main shutoff valve to capture 

foreign matter.

CSD-1 requires that if gas pressure entering the building 
exceeds the rating of any gas train component an 
overpressure protection device must be installed.

Standard – An Underwriters Laboratories (UL) listed 
gas train is standard for the CG10 gas burner.  This 
confi guration also meets CSD-1 requirements.  See 
Figures 8A and 8B for typical component layout.

Propane (LP) – When the correct propane restrictor 
is added to a burner’s gas pipe assembly it changes 
the burner’s gas pressure drop so that the propane 
pressure drop is equal to the natural gas pressure drop 
of the same BTU fi ring rate.  That is why the Manifold