2.6.2
Burners
Where indicated and specified, each boiler shall be provided with oil-fired
burner or burners. The burner assembly and control systems shall conform
to UL 296, UL 726 and NFPA 8501, except as otherwise specified. Supervised
manual semiautomatic and fully automatic combustion safety controls shall
conform to, NFPA 8501 and ASME CSD-1.
2.6.3
Aboveground Oil Storage Tanks
Aboveground oil storage tanks and associated piping systems shall be in
accordance with Section 13202 FUEL STORAGE SYSTEMS.
2.6.4
Underground Oil Storage Tanks
Underground oil storage tanks and associated piping shall be in accordance
with Section 13202 FUEL STORAGE SYSTEMS.
2.7
COMBUSTION CONTROL EQUIPMENT
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NOTE: Subparagraphs describing inapplicable types
of combustion control equipment will be deleted.
Positioning type combustion control equipment will
be specified for boilers with capacity of 13.2 MW
(45,000,000 Btuh) or less. Metering type equipment
will be used for larger boilers. Positioning type
controls with oxygen compensation may be furnished
for boilers with capacity of 13.2 MW (45,000,000
Btuh) or more in lieu of metering type. Oxygen
compensated controls may be specified for boilers
having output capacities of 7.3 MW (25,000,000 Btuh)
and greater if a life cycle cost analysis indicates
it to be favorable.
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Combustion control equipment shall be provided as a system by a single
manufacturer. An automatic combustion control system shall be installed
for each boiler in accordance with the manufacturer's recommendations. The
controllers shall be located on the boiler room panel specified in
paragraph BOILER ROOM PANELS AND INSTRUMENTS. The equipment shall operate
either pneumatically, electrically, or electronically. Pneumatic control
systems shall conform to ASME B19.3. Air filter regulator sets shall be
installed at each control valve and transmitter in the system. The master
air filter regulator set on the control panel shall be of the dual type
where one side can be cleaned and repaired while the other is in operation.
Exterior control air piping and devices shall be protected from freezing
by use of a regenerative desiccant dryer. Each system shall be provided
with a selector switch or other means of manual control of the firing rate
when required. Electrical control devices shall be rated at 120 volts and
shall be connected as specified in Section 16402 INTERIOR DISTRIBUTION
SYSTEM. Operating and limit controls shall be wired to interrupt the
ungrounded circuit conductor. [Steam and energy generating equipment shall
include instrumentation and sufficient metering for accountability
interface with a future Energy Monitoring and Control System (EMCS).]
2.7.1
Positioning Type
Positioning type combustion control equipment shall be capable of
SECTION 15559A
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