Powered Aire HDX2-120 User Manual

POWERED AIRE INC.

www.poweredaire.com

109 Mortensen Road Phone: [phone]
Greenville, PA 16125 Fax: [phone]

EXPLOSIVE AREA AIRE CURTAINS

SPARK RESISTANT CONSTRUCTION FOR HAZARDOUS AREAS

(DOORS FROM TWELVE TO SEVENTEEN FEET HIGH)

SUGGESTED AIRE CURTAIN SPECIFICATIONS

Aire curtains are to be furnished as factory assembled units manufactured by Powered Aire Inc. Greenville, PA. Units

.

will be manufactured for Class I, Division I, Group C & D and Class II, Group F & G hazardous areas. Each unit
consists of casing, motors, centrifugal fans, protective inlet screen and discharge nozzle. Aire curtains will be equipped
with access panels for motor and fan assembly. Individual motor and fan assembly can be removed without lowering
the unit or lowering the bottom half of the unit. Aire Curtain unit to provide uniform velocity across the entire length of
the discharge area. The units will be front or top air intake. Units are universally manufactured for wall mount or top
mount.

Units to be constructed with sufficient rigidity to span the length of the opening without intermediate support.
Additional mounting holes to be provided on larger units for buildings where structural support is not adequate for
supporting the aire curtain from ends only. All weight bearing structural support will be made of formed 11-gauge
stainless steel and galvanized steel. Outer casing shall be constructed of 16-gauge stainless steel. Intake screen will be
20 gauge perforated type stainless steel. Casing will be equipped with stainless steel access panels for inspection,
cleaning and removal of motor blower assembly. Internal components shall be welded and bolted construction.

Units shall be equipped with dynamically balanced curved double inlet double width aluminum blower wheels and
matched blower housings. Fan scrolls or formed fiberglass air diverters shall not be acceptable.

Motors will be 3 horse power explosion proof suitable for Class I, Group D and Class II, Group F & G Total Enclosed
Air Over. All internal wiring will be encased in hard pipe and ran to an explosion proof junction box. Motor will be
1160 RPM 215 T-Frame with a service factor of 1.0, 84% efficiency, rated for use in 40ºC maximum ambient
temperature. To prevent a misalignment or a possible spark from occurring, no outboard bearings or fl exi ble cou pli n gs
will be acceptable. Primary voltage shall be 208/240/480/575 volts 50/60 Hz three phase.

Aire curtain discharge to distribute outlet air evenly at and between blowers for the entire length of aire curtain through
the use of a plenum.

Discharge nozzle shall be aluminum and adjustable to + 20 degrees with no dampers or grills to add turbulence and
create a pressure drop or a sound pressure increase.

The unit design shall allow for addition of heating sections or filters without altering the base unit.

For steam or hot water heated units consult factory.

OPTION I

Non Sparking construction for e xplosion proof areas. Control panel shall be an explosion proof Nema type 9, Class II,
Division I and Group E, F, or G. Enclosure will encase magnetic motor starter, overload relays, 115 volt control
transformer and terminal provisio ns for field wiring. A remote mounted explosion proof hand/off/automatic selector
switch and an explosion proof door switch can be utilized for turning unit on while the door is open in the automatic
position, or having the unit run continuously regardless of the door in the hand position if specified.

OPTION II

If standard controls are to be remote mounted in a non-explosion proof area, a standard control panel and on/off switch
can be utilized. Standard control panel shall be a Nema 12 enclosure. Enclosure will encase magnetic motor starter,
overload relays, 115 volt control transformer and terminal provisions for field wiring. On/off selector switch will also
need to be placed in a non-explosion proof area if specified. If a door switch is required, it will need to be explosion
proof type.

Unheated unit(s) shall have an 18 month warranty on all parts.

MODEL HDX

Steam / Hot Water Coil

CONTROLS

October, 2013