29
P/N 240010943, Rev. C [09/07/2016]
7.1
General
• Use piping materials and joining methods acceptable
to authority having jurisdiction. In absence of such
requirements:
• USA - National Fuel Gas Code, ANSI Z223.1/NFPA
54
• Canada - Natural Gas and Propane Installation Code,
CAN/CSA B149.1
•
Size and install gas piping system to provide sufficient
gas supply to meet maximum input at not less than
minimum supply pressure. See Table 8.
• Support piping with hooks straps, bands, brackets,
hangers, or building structure components to prevent
or dampen excessive vibrations and prevent strain on
gas connection. Boiler will not support piping weight.
• Use thread (joint) compound (pipe dope) suitable for
liquefied petroleum gas.
7.2
Conversion Kit Instructions
• See Gas Conversion Kit Instructions included with
Boiler.
CAUTION
WHAT TO DO IF YOU SMELL GAS
• Do not try to light any appliance.
• Do not touch any electrical switch; do not use
any phone in your building.
• Immediately call your gas supplier from a
neighbor’s phone. Follow gas supplier’s
instructions.
• If you cannot reach your gas supplier, call the
fire department.
!
Gas Supply Pressure
MODEL
Natural Gas
Propane
Min.
Max.
Min.
Max.
399
3.0" w.c.
(0.7 kPa)
13.5" w.c.
(3.3 kPa)
5.0" w.c.
(1.2 kPa)
13.5" w.c.
(3.4 kPa)
FIGURE 7-1 Gas Connection
(at top of Boiler)
Note:
See Glossary - Piping Table 16
NOTICE
Use two (2) wrenches when tightening boiler
fittings and pipes. Boiler's internal piping can be
damaged if subjected to excessive torque.
7 - GAS SUPPLY PIPING
Table 8 - Gas Supply Pressure
Gas Connection
Top of Boiler
1"NPT
Gas Valve
Gas Shutoff
Valve
