Fulton Pulse HW (PHW) Fully Condensing Hydronic Boiler - Manual (Page 20)

© The Fulton Companies 2013
INSTALLATION
PHW-IOM-2013-0214
SECTION 2
2-14
Install Gas Piping
Adhere to the following for gas piping installation:
1. Gas Piping should be installed in accordance with
National Fuel Gas Code, ANSI Z223 1 1991 or latest
addenda and any other local codes which may apply.
In Canada gas installations must be in accordance with
the current CAN/CGA B149.1 and .2 and/or local codes.
2. The pipe and the fi ttings used should be new and free
of dirt or other deposits. Piping must be of the proper
size to insure adequate gas supply.
NOTE: Do not use the boiler’s gas train inlet size as a
gauge for inlet piping size. Always refer to appropriate
gas piping charts.
NOTE: Full port ball valves approved for gas should be
used for gas isolation to reduce pressure drop.
3. Gas pressure to inlet of gas train should be 7” WC for
natural gas and 11” WC for propane (PHW2000LE
requires 11”WC on natural gas). Connect gas supply
line to the open end of the tee on which the drip leg is
installed. See Figure 10.
4. When making gas piping joints, use a sealing
compound resistant to the action of liquefi ed
petroleum gases. Do not use Tefl on tape on gas line
threads.
5. 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.
6. The boiler must be isolated from the gas supply piping
system by closing its individual manual shut off valve
during any pressure testing of the gas supply system at
more than 1/2psi (3.5kPa).
7. Gas vents to outdoor air must be provided for the gas
pressure regulator. Restricting orifi ces or bleed orifi ces
should not be used at anytime. The vent line connection
on the gas pressure regulator must be piped to outdoor
air by installer in accordance with the National Fuel Gas
Code, ANSI Z223- 1-1991 or latest addenda.
8. In Canada gas installations must be in accordance with
the current CAN/CGA B149.1 and .2 and/or local codes.
HONEYWELL PRESSURE SWITCH
The Honeywell C6097 pressure switch is designed with
internal vent limiters to meet UL 353 requirements and are
CSA certifi ed, UL listed, FM approved, and CSD-1 acceptable.
Local codes may not permit a gas device (pressure switch)
without an external vent line connection. If that is the case, a
vent line must be added.
Install Field Wiring
Adhere to the following for fi eld wiring installation (see
Figures 11 and 52):
1. An independent power supply line is recommended
for the boiler. Connect one 120 volt (60Hz) fused power
line to terminal block to hot, or marked terminal per
electrical diagram. Connect applicable wires to neutral
and ground. Connect a ground wire to green colored
ground lug in electrical control box.
FIGURE 10 - GAS VALVE CONFIGURATION
FIGURE 11 - FIELD WIRING