Gas Supply Piping - Carrier BWMAAN000050 Installation, Operation And Maintenance Manual

7-1 Gas Connection
NOTICE
Use two (2) wrenches when tightening and fi tting
to pipe boiler's threaded fi ttings. Boiler's internal
piping can be damaged if subjected to excessive
torque.

7 - GAS SUPPLY PIPING

Gas Connection
MODEL
050
075
100
150
200
25
CAUTION
! !
WHAT TO DO IF YOU SMELL GAS
• Do not try to light any appliance.
• Do not touch any electrical switches; do not use any
phones 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 fi re
department.
7.1 General
• Use piping materials and joining methods acceptable
to authority having jurisdiction. In absence of such
requirements National Fuel Gas Code, ANSI Z223.1/
NFPA 54.
• Size and install gas piping system to provide suffi cient
gas supply to meet maximum input at not less than
minimum supply pressure. See Table 5.
• 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
liquefi ed petroleum gas.
• Provide sediment trap up stream of gas valve.
• Install manual main shutoff valve outside of jacket. See
fi gure 7-2.
7.2 Conversion Kit Instructions
• See Gas Conversion Kit Instructions included with Boiler.
TABLE 5: GAS SUPPLY PRESSURE
Natural Gas
Min. Max.
3.0" w.c. 13.5" w.c.
(0.7 kPa) (3.3 kPa)
3.0" w.c. 13.5" w.c.
(0.7 kPa) (3.3 kPa)
3.0" w.c. 13.5" w.c.
(0.7 kPa) (3.3 kPa)
3.0" w.c. 13.5" w.c.
(0.7 kPa) (3.3 kPa)
3.0" w.c. 13.5" w.c.
(0.7 kPa) (3.3 kPa)
Note: See Glossary - Piping Table 16
Propane
Min. Max.
5.0" w.c. 13.5" w.c.
(1.2 kPa) (3.4 kPa)
5.0" w.c. 13.5" w.c.
(1.2 kPa) (3.4 kPa)
5.0" w.c. 13.5" w.c.
(1.2 kPa) (3.4 kPa)
5.0" w.c. 13.5" w.c.
(1.2 kPa) (3.4 kPa)
5.0" w.c. 13.5" w.c.
(1.2 kPa) (3.4 kPa)