F-F-320C
d. A timed drain period, as recommended by the manufacturer, shall follow the wash cycle.
If recommended by the manufacturer to expedite drying, the system controls shall function
to energize the fan.
e. On type I units, the adhesive pump and drive motor for the adhesive manifold shall be
energized for a timed adhesive application period followed by a timed drain period.
f. Completion of all phases of wash, adhesive application, and drying or drain cycles shall be
signaled by an indicator light on the power pack, control box, or manifold housing.
3.10.3 Automatic. Automatic controls for type I and type II units shall be as specified in 3.10.2
except that the control system shall include a clock timer. The timer shall be designed and
connected to automatically initiate the sequence of operations specified in 3.10.2 at any
preselected interval up to seven days or to six weeks, as specified (see 6.2).
3.11 Accessories. When specified (see 6.2), one or more of the following accessories and
supplies shall be furnished:
a.
Aluminum, wire-mesh trash screen assembly.
b.
Baffles to ensure even distribution of air over the face of the collector cell bank.
c.
Prefilter assembly.
d.
Spare ionizing wire in quantities specified.
e.
Adhesive oil in quantities specified.
f.
Extra rolls or cartridges for after-filter units on type III units.
Additional requirements for any of the above accessories or supplies shall be as specified in the
contract (see 6.2).
3.12 Identification marking. Identification shall be permanently and legibly marked directly on
the filters or on a corrosion-resisting metal plate securely attached to the filter at the source of
manufacture. Identification shall include the manufacturer's model and serial number, name, and
trademark to be readily identifiable to the manufacturer.
3.13 Treatment and painting. Unless otherwise specified (see 6.2), the filter units shall be treated
and painted in accordance with the manufacturer's standard practice. All surfaces of the filter
units other than corrosion-resisting steel shall be protected against corrosion and present a neat
appearance.
3.14 Instruction plates. The filters shall be equipped with instruction plates suitably located,
describing any special or important procedures to be followed in operating and servicing the
equipment. Plates shall be of a material which will last and remain legible for the life of the
equipment. Plates shall be securely affixed to the equipment with nonferrous screws or bolts of
not less than 0.125-inch (3.175 mm) diameter.
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