F-F-320C
4.4.1 Operational test. Each group 1 unit shall be operated for not less than one hour to verify
that all controls, meters, indicating lights, and safety controls function properly and that no arcing
or current leakage occurs between live and grounded parts. Components for group 2 units shall
be checked individually to verify that performance after assembly at the site will meet the
requirements of this specification. Group 2 units may be factory-assembled and tested as a unit at
the option of the manufacturer, and then dismantled for shipment.
4.4.2 Performance test. The first article sample, when required, shall be tested to verify
compliance with the performance requirements of 3.7 and 3.7.1. The tests shall be conducted at
the voltage setting recommended by the manufacturer at the specified airflow rate in cfm (m3/s).
Arrestance efficiency determinations shall be made as specified in ASHRAE 52 using atmospheric
air. The test shall also verify compliance with the requirements of 3.8.2 relating to collector cell
performance and, when applicable, with requirements relating to wash, adhesive, and detergent
systems.
5. PACKAGING
5.1 Packaging requirements. The preservation, packing, and marking shall be as specified in the
contractor or order.
6. NOTES
(This section contains information of a general explanatory nature that may be helpful, but is not
mandatory.)
6.1 Intended use. The equipment covered by this specification is intended for use in
nonresidential air cleaning systems for removing dust, smoke particles, and other particulate
matter ranging in size down to 0.01 micrometre.
6.2 Acquisition requirements. Acquisition documents should specify the following:
a.
Title, number, and date of this document.
b.
Types, styles, classes, groups, and size required (see 1.2).
c.
When group 1 units are to be designed for suspension mounting (see 3.1).
d.
When a detergent dispenser or pump will be acceptable on type II, group 1 units of
3,000 cfm (1.41 m3/s) or less (see 3.1.2).
e.
When a first article is required (see 3.2, 4.2.1, and 6.3).
f.
When conformance with UL 867 is required (see 3.3).
g.
Whether access for group 1 units is on the right or left side (see 3.6).
h.
When alternate materials or protective coatings for the enclosure panels are to be
authorized (see 3.8.1).
i.
When units are to be designed for operation on a power supply other than as specified
(see 3.8.3.4).
j.
Type of wash control system required for type I or type II units (see 3.10).
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