It’s Shaping Up to Be a HOT Summer!

These last several weeks have been unprecedented for all of us. We’ve had a lot more time to spend isolated at home with our families and everyone’s begun to get a bit stir crazy. It’s a great opportunity to tackle some of those long overdue projects that have been stacking up. The lawns in the neighborhood have never been greener, there’s no excuses this year! This year’s summer garden is also shaping up to be a HOT one.

Starting my plants from seed this year has been a fulfilling journey (with plenty of learning curves!) but allowed me the opportunity to hand pick the varieties of peppers and tomatoes I’ll have later on in the year. For this year we’re really bringing the heat with a variety of superhot peppers: Peach Reapers, Purple Bhut Jolokia, Orange Long Tail Scorpion, and 7 Pot Lava Yellow along with a few “milder” peppers for when the heat gets a little too intense..

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It’s been a fun way to pass the time and look forward to this year’s growing season. But it won’t be just my mouth that’s hot this summer, the warmer temperatures associated with the summer months also cause numerous problems for the control panels in your facility.

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EXAIR’s Cabinet Cooler Systems were designed specifically to rectify these issues. Utilizing Vortex Tube technology, the Cabinet Cooler produces cold air from an ordinary supply of compressed air. This cold air keeps the enclosure free of debris and moisture and is easily installed in minutes through a standard electrical knockout. Here is a short video that shows just how simple it really is.

 

The Cabinet Cooler Systems are available with Nema 12 (IP54) ratings and are also available in Aluminum, 303 Stainless Steel, and 316 Stainless Steel construction for Nema 4/4X (IP66) rated enclosures. For systems that are not able to be mounted on top of the cabinet, we also have Side Mount Kits available in Aluminum, 303 Stainless, and 316 Stainless. EXAIR has also recently introduced a new line of Hazardous Location Cabinet Coolers for use in classified areas.

To determine which size Cabinet Cooler is right for you, simply complete the Cabinet Cooler Sizing Guide online. One of the EXAIR Application Engineers will then be able to determine the cooling capacity required based on the conditions of your cabinet. In less than 24 hours, you’ll have a response from us with the recommended model. With all Cabinet Cooler Systems available from stock, you can get one shipped out to you right away!

Don’t wait until it’s too late, EXAIR’s Cabinet Cooler is the simple solution for maintaining the temperature inside of your electronic enclosures.

Tyler Daniel
Application Engineer
E-mail: TylerDaniel@EXAIR.com
Twitter: @EXAIR_TD

 

Image courtesy of alvinmatt via Pixabay 

Reliable Heat Protection Right Now: The EXAIR Cabinet Cooler System

Electrical and electronic devices can be finicky creatures.  Shutting them away inside a sealed enclosure keeps dust, fumes, and humidity away, but it’s about the worst thing you can do to them, heat-wise.  If you don’t provide some means of cooling, they’re going to simply burn up, and you’ll have to replace them.  If they’re critical for your operation, you better keep a spare, because they’re not always on the shelf, and they’re not even always in the country.

Conventional wisdom, then, says you should provide some method of cooling.  You can use a vented enclosure, with a fan & louvers, assuming it’s not in a spray down/wash down area.  But if it’s in a dusty and/or humid and/or fume-ridden area, well, you’ve just compromised the reason you put them in an enclosure in the first place.

Refrigerant based panel coolers are prolific…they come in all shapes & sizes, and they’re probably sold by the folks you got the electrical panel from.  Thing is, they can be susceptible to the same dust, fumes, and humidity that you’re trying to keep from wrecking what’s inside the enclosure.  If the filters get clogged, the tubes get fouled, a refrigerant leak develops, the motor burns out, the compressor fails (just to name a few potential problems,) we’re back to recommending keeping spare parts around, or, even worse, opening up the panel for emergency cooling…

Don’t let this happen to you, or your control panels!

We talk to folks all the time who are looking for a better method of heat protection for the finicky gear inside their control panels, and the one common factor is reliability.  They all simply want something that works.  All day and every day.

So we introduce them to EXAIR Cabinet Cooler Systems.  They’re compressed air operated and have no electric motor to burn out.  They have no moving parts to break down, no filters or tubes to clean, no refrigerant to leak.  They install in minutes, and if you supply them with clean, moisture free air, they’ll run darn near indefinitely maintenance free.  And the only thing the inside of your panel will ever see is cold, clean, moisture free air.

Oh, and there’s no need for spare parts…other than filter elements for the compressed air supply.  Barring catastrophic physical damage, again, there’s really nothing to go wrong with them.

One last thing, which prompted me to write this blog today:  They’re on the shelf and ready for immediate shipment, unlike the refrigerant based panel cooler that a caller earlier today was looking to replace…their vendor was 2-3 weeks away from getting them one, which was 2-3 weeks longer than they could afford to wait.

This NEMA 4 Dual Cabinet Cooler System protects a critical equipment panel on a hot roll steel line.

It’s getting warmer by the day here in the Northern Hemisphere, so I expect calls about panel cooling will be increasing.  Not to worry; we’re ready for it.  If you want to find out more about reliable heat protection for your electronics, drives, and other critical components, give me a call.

Russ Bowman
Application Engineer
EXAIR Corporation
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Stop the Overheating Alarms from Your Electrical Cabinets this Summer

I’ve already documented my penchant for insanely hot foods in a previous blog post about my participation in a hot wing competition. Over the years, I’ve grown a few different varieties of super-hot peppers in my garden that’s led to my love for all things fire. In years past I’ve been limited to the varieties of peppers that I can find at the local nurseries.

This year I decided to take things a step further. I purchased a variety of both pepper and tomato seeds online and decided to grow them from seed, allowing me to pick and choose each type that I wanted in the garden for this summer. While it’s been a bit of a learning process and we’ve had a few fallen soldiers thus far, things are beginning to come together. It’s been a fun way to look forward to this year’s growing season.

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It seems strange writing this while there is snow on the ground here in Cincinnati, but spring is right around the corner. I don’t know about you, but I quickly see past spring and can start to feel the warm summer weather.

Once again, as summer’s hot temperatures approach,  so do those seasonal temperature alarms from your electrical enclosures. Increased temperatures lead to heat related problems in your electrical panels. With summer coming along before you know it, the time is now to get a solution in place before it becomes an issue.

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EXAIR’s Cabinet Cooler Systems were designed specifically to rectify these issues within your facility. Utilizing Vortex Tube technology, the Cabinet Cooler produces cold air from an ordinary supply of compressed air. This cold air keeps the enclosure free of debris and moisture and is easily installed in minutes through a standard electrical knockout. Here is a short video that shows just how simple it really is.

The Cabinet Cooler Systems are available with Nema 12 (IP54) ratings and are also available in Aluminum, 303 Stainless Steel, and 316 Stainless Steel construction for Nema 4/4X (IP66) rated enclosures. For systems that are not able to be mounted on top of the cabinet, we also have Side Mount Kits available in Aluminum, 303 Stainless, and 316 Stainless. This year, EXAIR also introduced a new line of Hazardous Location Cabinet Coolers for use in classified areas.

These systems are available with cooling capacities from 275-5,600 Btu/hr. To make things much easier for you, we offer a Cabinet Cooler Sizing Guide that will allow us to recommend the most suitable model for your cabinet. With a few quick measurements, we’ll be able to determine the exact heat load that we’ll need to dissipate and offer you a quick and easy solution.

If you experienced heat related issues on electrical panels last year, or just want to talk about spicy food and gardening, contact an Application Engineer today and we’ll be happy to help.

Tyler Daniel
Application Engineer
E-mail: TylerDaniel@EXAIR.com
Twitter: @EXAIR_TD

Factors When Sizing a Cabinet Cooler System

Heat can cause real problems for electrical and electronic components, in a hurry…we all know that.  Fortunately, we can also specify the right Cabinet Cooler System for you in a hurry too.  And since we keep them all in stock, we can get it to you in a hurry as well.

You can access our Cabinet Cooler Sizing Guide online, here.  You can fill in the blanks and submit it, or you can call in your data.  We do it over the phone all the time, and it only takes a minute.  Here’s what we’re going to ask for, and why:

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  • Enclosure dimensions.  We need the length, width, and height of your enclosure to calculate the heat transfer surface, and the volume of the enclosure.
  • Current Internal Air Temperature.  How hot is it inside your enclosure?  This is the starting point for figuring out the internal heat load…how much heat the components inside the box is generating.  This needs to be the air temperature – don’t use a heat gun, or you’re going to give me the surface temperature of something that may or may not be close to what I need.  Just put a thermometer in there for a few minutes.
  • Current External Air Temperature.  How hot is it in the area where the enclosure is located?  We’re going to compare this to the internal air temperature…the difference between the two is actually proportional to the heat load.  Also, if there’s anything cooling the enclosure right now (like circulating fans; more on those in a minute,) this reading is key to figuring out how much heat they’re removing.
  • Maximum External Air Temperature.  How hot does it get in the area on, say, the hottest day of summer?  We’ll need this to calculate the external heat load…how much heat the enclosure picks up from its surroundings.
  • Maximum Internal Temperature Desired.  Most electrical and electronic component manufacturers publish a maximum operating temperature of 104F (40C) – it’s kind of an “industry standard.”  Based on this, a lot of us in the enclosure cooling business set our products’ thermostats to 95F (35C) – if we’re maintaining the air temperature a decent amount cooler than the components are allowed to get, history and practice has shown that we’re going to provide more than adequate protection.  If your enclosure houses something with more sensitive temperature limitations, though, we can work with that too…that’s the only time you’re going to want to put something other than 95F (35C) in this field.
  • Cabinet Rating.  This is all about the environment…we offer three levels of protection, per NEMA standards:
    •  NEMA 12 – oil tight, dust tight, indoor duty.
    • NEMA 4 – oil tight, dust tight, splash resistant, indoor/outdoor duty.
    • NEMA 4X – oil tight, dust tight, splash resistant, corrosion resistant, indoor outdoor duty.

                     The NEMA rating does not affect the cooling capacity at all.

  • Other:  If the enclosure is mounted to the side of a machine, or a wall in the plant, you really don’t need to put anything here.  If it’s outside and exposed to direct sunlight, tell us what the surface finish (i.e., polished metal, painted grey, etc.) is so that we can account for solar loading too.  If anything else is unusual or peculiar about the application, let us know that too.
  • My Cabinet Is…Not Vented, Vented, Wall Mounted, Free Standing, Fan(s).  We’ll use what you tell us here to verify heat transfer surface (a wall mounted cabinet’s back surface isn’t a radiating surface, for example.)  Also, I mentioned fan cooling before, so without further ado…
  • Fan diameter or SCFM.  If there are fans circulating air into (and/or out of) the enclosure, they’re providing a finite amount of cooling right now.  Proper installation of a Cabinet Cooler System is going to require their removal.  Running a Cabinet Cooler System on a vented enclosure is just like running your air conditioner with the windows open.  So, if we know the size (or the SCFM…sometimes there’s a label on those fans, and we LOVE those folks who do that) then we can use that, and the temperatures you gave us above, to take the fan cooling into account.

Once we have all this information, it’s down to the math. Like I said, we do this all the time (especially during “Cabinet Cooler Season”) – give me a call.  Your heat problem isn’t waiting; why should you?

Jordan Shouse
Application Engineer
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