FULTON Vantage VTG Series Installation And Operation Manual page 17

SECTION 2
VTG-IOM-2013-0815
shutoff valve (located at the end of the supplied gas train) from the
gas supply piping system during any pressure testing of the system at
pressures in excess of 1/2 psig (14 inch W.C.).
5. Step down gas pressure regulators must be able to handle the turndown
of the boiler plant. A consistent gas pressure must be supplied to boilers at
all times.
6. Gas Piping must be installed in accordance with National Fuel Gas Code,
ANSI Z223.1 1991 or latest addenda and any other local codes, which may
apply.
7. The pipe and the fi ttings used must be new and free of dirt or other
deposits.
8. Piping must be of the proper size to ensure adequate gas supply. A drip leg
and union connection must be installed upstream of the gas safety shut off
valves and must be a 5 inch (127 mm) minimum length.
9. Connect gas supply line to the open end of the tee on which the drip leg is
installed.
10. When making gas-piping joints, use a sealing compound resistant to
liquefi ed petroleum gases. Do not use Tefl on tape on gas line threads.
11. After gas piping is completed and before wiring installation is started,
carefully check all piping connections, (factory and fi eld), for gas leaks. Use
a soap and water solution.
12. The boiler must be disconnected at the boiler shut off valve from the gas
supply piping system during any pressure testing of the system.

NOTE: The vent line connection on the gas pressure regulator must be
piped to outdoor air by the installer in accordance with the National Fuel
Gas Code, ANSI Z223.1-1991 or latest addenda. In Canada gas installations
must by in accordance with the current CAN/CSA B149.1 and 2 and/or local
codes.
13. Siemens SKP25 series gas valves are standard. The SKP25 is an actuator
with gas pressure regulating capabilities. This will eliminate the use of
Maxitrol regulators integral to the Vantage fuel trains.
14. The fuel trains with the SKP25 actuator are set up for 14"wc-5 PSIG natural
gas pressure for all models except the VTG-6000 and VTG-6000DF, which
are set up for 18"wc-5 PSIG natural gas pressure.
15. The SKP25 does not guarantee a "ventless" fuel train for all Vantage models,
even though in some occasions the boilers may be installed this way.
Although the SKP25 has independent certifi cation as a ventless regulator,
the Authority Having Jurisdiction (AHJ) may require a vent line to be
installed.
16. Vantage models featuring the Bekaert or Riello burners have pilot
assemblies. For Riello burner confi gurations, if vent limiters are not allowed
per the AHJ, the pilot regulator will need to be vented accordingly. Bekaert
Questions? Call (315) 298-5121, or visit us online at www.fulton.com
INSTALLATION
WARNING
All information in this manual is for
reference and guidance purposes,
and does not substitute for required
professional training, conduct,
and strict adherence to applicable
jurisdictional/professional codes and
regulations.
Do not use matches, candles, fl ame or
other sources of ignition to check for
gas leaks.
Failure to ensure the use of
uncontaminated air in this
equipment may be a safety hazard
and damage burner components.
Refer to current codes and standards
on the safe installation and operation
of this equipment, including NFPA
54, National Gas Fuel Code, CAN/CSA
B149 and other jursidictional codes.
CAUTION
Some soap used for leak testing is
corrosive to certain types of metals.
Clean all piping thoroughly after
completing the leak check.
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