2.3.8
Prevention of Rust
Unless otherwise specified, surfaces of ferrous metal subject to corrosion
shall be factory prime painted with a rust-inhibiting coating and
subsequently factory finish painted in accordance with the manufacturer's
standard practice. Equipment exposed to high temperature when in service
shall be prime and finish painted with the manufacturer's standard heat
resistant paint to a minimum thickness of0.025 mm 1 mil. Internal surfaces
of tubes and piping that will not be in storage more than three months
prior to being placed in service shall not be painted, but shall be coated
with a water soluble pipe oil for rust protection. Surfaces which will be
exposed directly to the flue gases (fireside furnace surfaces, OD surface
of convection pass surfaces, inside of flues and ducts) need not be coated
with a high temperature heat resistant paint, but shall be protected with a
suitable coat of the manufacturer's standard primer. Surfaces that will be
covered by insulation and lagging shall be painted with a high temperature
heat resistant paint.
2.3.9
Factory Coating
Equipment and component items, when fabricated from ferrous metal, shall be
factory finished with the manufacturer's standard finish unless otherwise
specified.
2.4
FUEL BURNING EQUIPMENT
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NOTE: Determine the boiler emissions NOx
requirements. Boiler emissions must comply with
local environmental permits. State regulations may
be more stringent than Federal Regulations. Delete
flue gas recirculation (FGR) if not required.
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Fuel burning equipment shall be provided complete with flame safeguard
trains and instrumentation supplied as a factory assembled and mounted
package on the boiler front. Packaged burner shall be capable of firing
the boiler at a continuous rating as scheduled, using [natural gas at 69 Pa
10 psi] [No. [2] [4] [6] fuel oil] as an [integral] [combination] unit[.]
[suitable for firing either fuel separately, designed to permit a quick
changeover without modification of equipment]. Provisions shall be
incorporated for withdrawing, shielding or otherwise preventing the oil
burner from cooking while firing gas. Emissions guarantees shall apply
through specified turndown range. Flue gas recirculation shall be
utilized to lower emissions, but shall be limited to 15 percent and shall
be induced by the combustion air fan. Burner shall have a stable flame
over the turndown range. Primary air spinner zone, zone divider and main
burner shall be removable without removing the entire register or windbox.
Register front plate shall have a swivel scanner and observation port. The
Contractor shall submit an Environmental Permit Compliance certificate
regarding the boiler emissions.
2.4.1
Pilot
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NOTE: Select one type of pilot (natural gas,
liquified petroleum gas or fuel oil) and remove the
others.
SECTION 15561A
Page 34
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