shall be finished with the manufacturer's standard finish coating. The
units shall be mounted flush on the panel as far as practicable. All
controls, instruments, and other equipment shall be flush mounted, each
fitting neatly into a cutout, and completely covering the cutout and any
mounting screws or bolts. Back of the panel shall be enclosed with sheet
metal and with adequate removable access panels or doors for maintenance
and removal of any unit without interfering with other units. Proper
latching equipment and hardware shall be provided. Each recorder,
indicator, and control unit shall be identified with nameplates securely
fastened to the panel. Nameplates shall be black over white laminated
plastic with the lettering penetrating the black surface to expose the
white. Panel shall have continuous rapid-start fluorescent light fixtures
mounted with reflectors providing suitable shielding to illuminate all
controls, instruments, gauges, and meters. All field piping connections
shall terminate in one bulkhead-mounted manifold, located to conform with
the installation requirements of the system. All field electrical wiring
shall terminate in a color-coded terminal strip to conform with the
installation requirements of the system. All electrical tubing or piping
connections to controls, instruments, or other devices on the panel shall
be inside the panel and not visible from the panel front. A suitable
plug-in strip shall be provided in the rear of the panel for any required
plug-in electrical connections of the instruments. All necessary
transformers, separate relays, switches, and fuses shall be installed in a
fully enclosed junction box. A fused safety switch shall serve the
120-volt power supply required for control circuits. If a pneumatic
control system is provided, the panel shall include duplex air supply
filter and regulator set mounted on the rear of the panel with properly
identified pneumatic terminal blocks and low point drain. High pressure
lines will not be allowed to enter the panel. [If packaged burner units
with integral controls are furnished, the control equipment may be mounted
on a separate panel for each unit. Controllers and indicators specified or
required shall be panel mounted and tested at the factory complete with
relays, transformers, switches, wiring, valves, piping, and other
appurtenances. All wiring and piping within the panel shall be color-coded
or otherwise identified.] Thermocouple and low energy signal conductors
shall be completely isolated from power and alarm conductors, subject to
approval by the Contracting Officer. Visual and audible alarms shall be
provided to protect personnel and equipment.
2.9.8.2
Recorders
Recorders shall be servo-mechanism type, or multiple-pen type. [Circular]
[Strip] chart shall be provided. Minimum chart width is 100 mm 4 inches.
Accuracy shall be plus or minus 1/2 percent. Each pen shall have a
separate scale calibrated in engineering units. Chart drive shall be 120
volts ac. One year's supply of chart paper shall be provided. The record
shall be made in ink on a [24-hour] [31-day] chart driven by an electric
clock mechanism. Each recorder point shall be made with a different color
ink. Recorders shall be installed complete with all necessary wiring or
pipe between the recorder and the transmitter in the boiler room.
Recorders mounted on the instrument panel shall record and indicate
measurement in the areas shown.
2.9.8.3
Panel Display
The panel shall include visual indication of the various modes of the main
system components (i.e., damper positions, I.D. fans). As a minimum, the
following parameters shall be displayed on the panel:
SECTION 15846A
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