What’s So Great About EXAIR Cabinet Cooler Systems?

Published on by Russ Bowman

I took a call the other day from a customer asking where a replacement Cabinet Cooler could be obtained, immediately, as the control panel on a machine critical to their operation was faulting out due to high temperature. I told him the Model 4030 NEMA 12 2,000 Btu/hr Cabinet Cooler (the one that was installed on the panel) was in stock, and he could have it first thing in the morning.

I also told him we should consider that to be “plan B”, as there were some simple troubleshooting steps that could very well restore the Cabinet Cooler System to proper operation right away. Per the Installation & Maintenance Instructions, the caller installed a pressure gauge at the compressed air inlet of the Cabinet Cooler:

I highlighted “clogged filter elements” for a reason. Turns out, while the header pressure was still 110psig (they had a gauge just upstream of the drop for the Cabinet Cooler supply pipe), the inlet to the Cabinet Cooler was only 65psig, meaning they were only getting about 650 Btu/hr instead of the rated (and required) 1,000 Btu/hr. Since nothing had changed in the compressed air system, they checked the Element in the Filter Separator, and found it was in need of replacement. Luckily, they had a spare element (fortune does indeed favor the prepared), so they were back up & running in a matter of minutes.

Automatic Drain Filter Separators like Model 9004 shown above have 5 micron particulate elements, and centrifugal elements for moisture removal. They’re included with all Cabinet Cooler Systems, and are properly installed upstream of the Thermostat Control’s Solenoid Valve.

This story highlights a major benefit of our compressed air operated Cabinet Cooler products: with no moving parts to wear, or electrical components to burn out, they’ll run darn near indefinitely, maintenance free, as long as they’re supplied with clean compressed air. The customer is leaving the pressure gauge installed on this Cabinet Cooler, with plans to monitor it on a regular basis so they’ll know at a glance when to replace that Filter’s Element.

Good engineering practice calls for point of use filtration and moisture removal, such as that provided by EXAIR Filter Separators.

EXAIR Cabinet Cooler Systems are available, from stock, to suit almost any electric/electronic panel heat protection need:

  • Cooling capacities from 275 to 5,600 Btu/hr. Call me if your heat load is outside this range…we can look at customized solutions too.
  • NEMA 12 (IP54), 4, or 4X (IP66) ratings.
  • Thermostat Control – Standard, or Electronic Temperature Control.
  • Non-Hazardous Purge for contaminant exclusion on less-than-ideally sealed enclosures.
  • High Temperature models for ambient temperatures from 125°F (52°C) to 200°F (93°C).
  • Side Mount Kits, where space is limited above the panel.
  • 316SS construction for particularly aggressive environments.
  • UL Classified systems for hazardous locations: Our HazLoc systems are approved for Class I Div 1, Class II, Div 1 & Class III areas, and ATEX systems are approved for Zones 2 & 22.

If you have an electrical/electronic panel that needs durable, reliable, and safe heat protection, EXAIR has Cabinet Cooler Systems on the shelf that installs in minutes. If you’d like to find out more, give me a call.

Russ Bowman, CCASS

Application Engineer
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