Vortex Enclosure Coolers        

How to Avoid Overheating Electronic Components

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Keep Electrical Enclosures Cool, Clean and Protected

Have your production lines or equipment ever shutdown from overheated electrical enclosures? It’s a common problem, and one that can have serious consequences. Research by control manufacturers has shown that for each 18°F (10°C) increase in temperature, online production shutdowns will occur twice as often. Vortex Coolers offer a simple, reliable and affordable solution to keeping control panels cool, clean and protected.

Today’s small and compact, multi-function electronic controls, variable speed drives, servos and programmable logic controllers are extremely sensitive to heat and contamination. Smaller cabinet sizes make temperature control difficult and contribute to significant premature failures. Excessive heat causes components to "cook", digital displays to misread, controls to drift, and breakers to trip below their rated loads. The result is often lost productivity from machine or line shutdowns. Fans often provide inadequate cooling and commonly pull in dirty, humid air creating another source of failure. Air conditioners require ongoing maintenance and are relatively expensive, large and difficult to install.

Vortex Enclosure Coolers are the affordable, low maintenance, easy to install alternative for keeping enclosures cool and clean without Freon or other refrigerants.

• Thermostatically controlled to save energy
• Continuous cooling models are available
• Powered by compressed air, utilizing a vortex tube to generate cold air without Freon or other refrigerants (CFCs/HCFCs)
• Exceptionally reliable, no moving parts to break or wear
• Low maintenance
• Cooling capacities to 5000 BTUH (1250 kcal/H)
• Maintains NEMA 4, 4X and 12 ratings. All models are UL-listed

With no moving parts to wear out or maintain, Vortex Coolers use only compressed air and vortex tube technology to produce quiet, efficient and reliable cabinet cooling. As an added benefit, these coolers create a slight positive pressure inside the enclosure to prevent dirt or dust from entering - even in the most challenging environments.

From small computer cabinets and touch-screen control panels to large electrical enclosures, a Vortex Cooler can protect sensitive controls from overheating to eliminate heat and dirt related shutdowns. Models are available to provide cooling capacities ranging from 400 to 5000 BTUH (101 to 1250 kcal/H).

• Compact and easier to install than air conditioners and most fan units
• Has no moving parts for highly reliable cooling protection
• Keeps components clean - no outside air ever enters the cabinet
• Offers quiet operation and little to no maintenance
• An affordable, UL-listed solution that maintains NEMA 4, 4X and 12 ratings

NEMA Type	MODEL NO.		CAPACITY		AIR CONSUMPTION
	with Thermostat	without Thermostat	BTUH	Kcal/hr	SCFM	SLPM
NEMA 12	750	760	400	101	8	227
	740	730	900	225	15	425
	790	780	1500	378	25	708
	795	785	2500	630	35	991
	7970	7870	5000	1260	70	1981
NEMA 4	747	737	900	225	15	425
	770	(a)	1500	378	25	708
	797	787	1700	428	25	708
	797-35H	787-35H	2500	630	35	991
	770-35H	(a)	2500	630	35	991
	7975	7875	5000	1260	70	1981
NEMA 4X	747SS	737SS	900	225	15	425
	797SS	787SS	1700	428	25	708
	797SS-35H	787SS-35H	2500	630	35	991
	7975SS	7875SS	5000	1260	70	1981
Models with 5000 BTUH capacity include two Vortex Coolers which use a common air line filter, solenoid and thermostat. Thermostat models are factory set at 90°F+2°/32°C+1° with the exception of the following: (a) Panel Guard Vortex Coolers (770 and 770-35H) use a non-adjustable, mechanical thermostat which has an approximate control of 80-90°F/27-32°C. NEMA 4X Vortex Coolers feature stainless steel construction for washdown protection and resistance to oxidation and corrosive surroundings.

All Vortex Cooler systems include a 5-micron Auto-Drain filter and a ducting kit to distribute cold air throughout the enclosure. Thermostatically controlled models also contain a solenoid valve and thermostat, limiting compressed air usage to those times when cooling is required.

All Vortex Coolers are UL-listed and maintain NEMA 4, 4x and 12 ratings based on selected model. Coolers are designed to use a filtered factory compressed air supply of 80 -100 PSIG.

Models 770 and 770-35H Panel Guard coolers feature an integral, mechanical thermostat. A heat sensitive element at the base of the cooler activates a control valve to open/close the compressed air supply. The non-adjustable thermostat requires no electrical connections and will provide cooling protection to maintain enclosure temperatures in the range of 80-90°F (27-32°C).

Inside the Vortex Cooler, a Vortex Tube spins the supplied compressed air, separating it into hot and cold airstreams. (See Vortex Tubes for more detail) The cold airstream is distributed throughout the enclosure via a ducting tube, while the hot side exits out the side of the Cooler body. The low pressure cold air flows into the cabinet forcing the heated internal air out a relief valve or vent built into the base of the Cooler. This slight positive pressure helps purge the cabinet of dust and dirt. Thermostat controlled models utilize a solenoid valve to activate the compressed air flow to the unit.

Vortex Coolers easily mount in tight spaces, with all models ranging from approximately 7 to 11 inches tall.

One of the leading US manufacturers of shrinkwrap packaging equipment uses Vortex Coolers to maintain safe temperatures in control panels near heated shrink tunnels. Since the evolution of catalyzed coating systems has spawned the need to control paint temperature in many applications, insulated enclosures equipped with Vortex Coolers are now available to keep paint cold and within specifications for optimal spraying. Vortex Coolers are offered as a thermal management solution by leading electrical enclosure fabricators and control panel designers. Vortex Coolers were installed on computer control panels on three robotic welding stations in an automotive assembly plant. The cooling solution purged the panels of dirty welding fumes and high ambient temperatures that were causing the computer malfunctions. A major snack foods company uses Vortex Coolers on all of their baking ovens to prevent heat-related shutdowns. Compact, easy to install Vortex Coolers are popular for enclosure protection on industrial ovens and heat finishing / processing systems and equipment.