Beckett CG10 manual UL gas train configuration

Section: Connect Gas Piping

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 specified when ordering a burner.

Verify – Verify that the train components are not damaged and all piping and fittings 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 fitted 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 infiltrate and block the vent piping. Make sure the final assembly is anchored securely.

Figure 8. UL gas train configuration

LGPS TC TC HGPS

MSC	U	SSOV1	PRSSOV	MLTC	U	TP
	C6097A	TC	TC		C6097B
	LGPS				HGPS
						TP
						BURNER
MSC	U	SSOV1	PRSSOV	MLTC	U

ABBREV. ITEM DESCRIPTION

HGPS HIGH GAS PRESSURE SWITCH LGPS LOW GAS PRESSURE SWITCH MSC MAIN SHUTOFF COCK

MLTC MAIN LEAK TEST COCK

PRSSOV PRESSURE REGULATING SAFETY SHUTOFF VALVE

SSOV1 SAFETY SHUTOFF VALVE #1 TC TEST COCK

TP TEST PORT U UNION

When pressure reducing safety

shutoff valves are used, the distance from the final shutoff valve (PRSSOV in Fig. 8) to the burner manifold must be kept to a minimum for good light-off reliability. R.W. Beckett recommends the following maximum lengths:

Pipe Size Max. Length

1” 12”

1-1/4” 15”

1-1/2” 18” 2” 24”

If a Normally Open Vent Valve (not shown) is used, the distance between the SSOVs must be kept to a minimum using the shortest practical nipples.

CG10 Burner Manual

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