Wiegmann WPG Series - Manual (Page 22)

D ATA S U B J E C T T O C H A N G E W I T H O U T N O T I C E
K22
F E AT U R E S - S P E C I F I C AT I O N S
www.hubbell-wiegmann.com
Data Subject To Change Without Notice
E N V I R O N M E N TA L C O N T R O L S
V O R T E X C O O L E R S
Industry Standards
UL Listed
NEMA 12, 4 or 4X
U L F i l e E 3 2 5 7 6 NEMA 4/4X NEMA 12
Applications
Compressed air cooling is used
where conventional enclosure cooling
(air conditioners or heat exchangers)
is not possible. Example: Small to
medium size enclosures; nonmetallic
enclosures; areas where the size of
cooling devices is restricted.
Features
• Suitable for harsh environments
• Small physical size
• Creates cool air without refrigerants
(no CFC’s, HFC’s)
• Exceptionally reliable — no moving
parts
• Virtually no maintenance
Requirements
• Clean, dry, oil-free compressed air
(100 PSIG / 70ºF or below) required
to achieve published BTU/hr. ratings.
Lower pressures and higher temper-
atures will reduce BTU/hr. ratings
• A 5 micron water and particulate
removal filter must be installed prior
to operating any Vortex Cooler
(included in kits)
• An oil removable filter can be
installed between the 5 micon
filter and the Vortex cooler if oil is
present in the compressed air line
• Mounting holes:
– NEMA 12 kits — (1) 1-3/32"
(28mm) or 3/4" knockout hole
for cooling tube and (1) 11/16"
hole for thermostat
– NEMA 4 & NEMA 4X kits —
(1) 1-5/16" (49mm) or 1-1/2"
knockout hole for cooling tube
and (2) #8 holes for thermostat
Kit Includes the Following
• Vortex Cooling Tube
• Solenoid Valve 120V 60Hz –
110V 50 Hz (230V available)
• 5 micron water and particulate
removal filter
• Ducting Kit
• Thermostat
How Enclosure Coolers Create Cold Air
Vortex Coolers are powered by a vortex tube – a unique device
that creates a vortex from compressed air and separates it into
hot and cold airstreams. Here’s how it works. The vortex tube’s
cylindrical generator causes the input compressed air to rotate,
reaching speeds up to 1,000,000 rpm as it is forced down the
inner walls of the hot, or longer end of the vortex tube. At the end
of the hot tube, as small portion of this air exits through a needle
valve as hot air exhaust. The remaining air is forced back through
the center of the incoming air stream at a slower speed. The heat
in the slower moving air is transferred to the faster moving incom-
ing air. This super-cooled air flows through the center of the
generator and exits through the cold air exhaust port.
Compressed Air In
Control Value
Hot Air Out
Cold Air Out
Vortex Generation
Chamber