Filter
Top Products
A. General
The electronic air cleaner shall be the two stage,
dual voltage, plate type electrostatic precipitator,
sized to clean the airflow capacities scheduled on
the Contract Documents at an efficiency of at least
(specify %) as determined by the ASHRAE
Standard 52.1-92, Dust Spot Test Method. Air
cleaner shall be furnished with built-in high pres-
sure, low volume water/detergent washing system
and programmable logic control for complete auto-
matic operation.
B. Configuration (Select B.1or B.2)
B.1 The electronic air cleaner shall be furnished in a
side access housing, fabricated from 16 gage gal-
vanealed steel, continuously welded, primed and
painted. The housing shall be furnished with gas-
keted, hinged access door with safety electrical
interlock, flanged inlet/outlet collars, built-in clean-
ing system and sloped bottom drain pan. The
housing shall be tracked for and furnished with alu-
minum pre and post mist eliminators and ionizing-
collecting cells.
B.2 The electronic air cleaner shall be front/rear
access, furnished using prefabricated, galvanized
framework designed to contain ionizing-collecting
cells and wash system. All frame sub-assemblies
shall be match marked and prepared for bolted
field assembly. Base support framework shall be
stainless steel. All necessary fasteners and fittings
shall be furnished. Framing shall be designed for
cell removal either upstream or downstream and
pre-punched air by-pass baffles shall be provided
for the upstream side. The foundation supporting
the framework, including drains and specified
opening shall be prepared by the Contractor in
accordance with the manufacturer's recommenda-
tion and written instructions.
C. Electronic Collector Modules
Ionizing-collecting cells shall be of industrial design
integrity and single unit construction. The cells
shall be all aluminum construction except the ioniz-
ing electrode shall be of the rigid stainless steel
type without serrated spikes or the tungsten wire
type. Repelling and collecting plates shall be pos-
itively retained in place using tie rod and tubular
spacer design. High voltage insulators shall be
molded from structural, self-glazing ceramic; shall
contain no appurtenances; shall be of radial and
bilateral symmetry; shall contain no high voltage
penetrations and shall not contact the high voltage
on the process air side. The entire assembly shall
be suitable for handling cold saturated air.
D. Built-in Cleaning System
Water/detergent washing system shall be high
pressure, low volume type. Detergent, wash and
rinse water shall be applied by oscillating copper
manifolds containing brass spray nozzles, located
on both the air entering and air leaving side of each
module tier. Complete, effective washing of all ion-
izing-collector cell surfaces and all appurtenances
shall be provided. Drive motors, used to oscillate
the manifolds, shall be high torque, gear reduced,
totally enclosed fan cooled type, and be perma-
nently lubricated. Drive linkage shall be a rigid,
positively fastened type without tracks or sprock-
ets.
One detergent dispensing assembly shall be pro-
vided to serve each electronic air cleaner. The
detergent dispenser shall consist of a (specify 30
or 55) gallon anti-corrosive reservoir, positive dis-
placement pump, motor, and flow volume control
valve.
Solenoid valve, strainer, backflow preventer, ball
valve, and an initial supply of detergent shall be fur-
nished by the electronic air cleaner manufacturer.
E. Control and High Voltage Power Supplies
Each electronic air cleaner shall use a single
remote-mounted control and power supply, con-
tained in NEMA 12 enclosures. The unit shall oper-
ate on 120 Vac, 1Ph, 60 Hz.
The control shall be of the programmable logic
(PLC) type, furnished in a NEMA 12 enclosure,
preprogrammed to sequence the electronic air
cleaner through wash cycles at a schedule to be
determined with the Owner. Integral electronic
time clock with manual override shall be provided.
High voltage power supply, furnished in a NEMA 12
enclosure, shall be the high frequency, solid state
type, supplying a dual voltage and current output
specified by the electronic air cleaner manufactur-
er. Power supply shall have a regulated input and
output for line fluctuations of 10% and shall have a
current limiting shutdown and restart feature.
The face panel of the enclosures shall contain indi-
cators for electronic air cleaner control status (run,
wash, etc.), individual power supply, primary circuit
indicating light, monitoring instrumentation, and on-
off switch.
Provide enable/disable contacts suitable for inter-
face with the specified Building Control and
Management System (BMS).
F. Electrical Interlocks
Furnish duct door electrical interlocks, disconnect
switch, and pilot light assembly. All access to elec-
tronic air cleaners and high voltage power packs
shall contain electrical safety interlocks which de-
energize the primary power circuit prior to access-
ing high voltage.
Engineering Specifications
Flanders Precisionaire - Foremost in Air Filtration
Engineered Products: 1-800-637-2803 Replacement Products: 1-800-347-2220