FULTON Vantage VTG Series Installation And Operation Manual page 19

SECTION 2
VTG-IOM-2016-1214
Adhere to the following for gas piping installation:
1. See Table 3 for required natural gas pipe size, based on overall length of
pipe from the meter plus equivalent length of all fittings. Approximate
sizing may be based on 1,020 BTU for 1 cubic foot of natural gas.
2. Piping must be installed such that no piping stresses are transmitted to the
boiler. The boiler cannot be used as a pipe anchor.
3. The boiler and all gas piping connections must be pressure-tested and
checked for leaks before being placed into service. Test with compressed
air or inert gas if possible.
4. The boiler must be disconnected at the boiler manual 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 fittings 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
liquefied petroleum gases. Do not use Teflon tape on gas line threads.
11. After gas piping is completed and before wiring installation is started,
carefully check all piping connections, (factory and field), 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.
– NOTEE: Where applicable, 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. Fuel trains with the SKP25 actuator are set up for 14"W.C.-5 PSIG natural
gas pressure for all models except the VTG-6000 and VTG-6000DF, which
are set up for 18"W.C.-5 PSIG natural gas pressure.
Questions? Please Contact Your Local Manufacturer's Representative
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 GASOLINE, CRANKCASE
OIL OR ANY OIL CONTAINING
GASOLINE. If in doubt, contact
your Fulton representative prior to
operation.
Do not store or use gasoline or other
flammable vapors and liquids or
corrosive materials in the vicinity of
this or any other appliances. Cements
for plastic pipe should be kept away
from all sources of ignition. Proper
ventilation should be maintained to
reduce the hazard and to minimize
breathing of cement vapors.
Damage to the pump seal will occur
immediately if it is run with the return
line closed and the by-pass screw
inserted.
If the water supply must be
temporarily disconnected from the
condensate drain trap, the boilers
must be turned off to prevent
accidental flue gas emission into the
boiler room.
2-13