Here’s what the Freon-based Air Conditioner Manufacturers Won’t Tell You

Many times when we are asked to make a comparison of our Cabinet Cooler Systems to Freon-based Cooling Systems for electrical panels, the customer only wants to know what the energy consumption will be as this is their only focus.

But what most Freon cooling system owners don’t seem to be concerned about, until it is too late, is the maintenance headache that Freon-based cooling systems present to their maintenance schedule, personnel and production schedule.  Below is just one example of what a typical industrial Freon-based Cabinet Cooling system user must go through each month just to keep their panels cool enough to keep production going.

A Freon cooling system user contacted me about a problem they have with their existing units. The setting is a machine shop located somewhere in Indonesia where the temperatures can exceed 40°C and Relative Humidity Levels around 85%. They have 4 units keeping a bank of panels cool for a transfer line which includes CNC machining centers. Photo showing coolers installed below.

AC 3 and 4 Cleaning (6)
Freon Panel Coolers on Transfer Line

The problem they have is that the dirt, dust and coolant which are present, deposit on the internal workings of the Freon Coolers, reducing their cooling efficiency to a point where over-heat condition becomes a problem. This occurs so frequently that the customer is having to completely remove and clean all 4 Freon cooling units for a full 8 hour shift, 1 day every month. That’s almost 3 weeks of lost production per year!  Obviously, that is a huge drag on the customer’s productivity.

IMG_1708
Dirt and Coolant collect on inside reducing cooling efficiency

And so, a certain amount of buyer’s remorse pervades for those folks who own and have to maintain Freon system just to keep their production up and running.

So, what does EXAIR offer?  EXAIR’s Cabinet Cooler Systems offer the customer freedom from all of this downtime, maintenance and loss of productivity. How?

  1. We are selling reliability with our Cabinet Cooler systems. No maintenance is required on the cooler system or on the cabinet to which it is installed. Because there are no moving parts to wear out. A simple, periodic check on a compressed air filter element is all that is necessary.
  2. We are selling the fact that our Cabinet Cooler Systems maintain a positive pressure on the customer’s panel. This condition keeps all of this dirt, coolant spray and any other contamination out due to the positive pressure that is placed on the panel while the Cabinet Cooler System is operating. Air is always moving from inside the panel to the outside, so dust, dirt and other debris never has a chance to enter through vents or other openings.
  3. We are selling longevity with our Cabinet Cooler Systems. Because there are no moving parts, the life span of EXAIR Cabinet Cooler Systems is in the range of 20+ years. The Freon based systems operating under these mildly harsh conditions will last 5 years at most. So in the life span of one EXAIR Cabinet Cooler, the Freon cooling system user will have been through at least 4 different units during that time. And still have all the monthly maintenance hassle come along with it.

The general point I wish to make with this real-world example is to think about the total cost of ownership when considering your next panel cooling system purchase. It is not all about energy consumption. Energy use is important, but by no means should that be your only consideration when deciding on what type of panel cooling system is right for you as the person charged with keeping the overall production line up and running.

Neal Raker, International Sales Manager
nealraker@exair.com
@EXAIR_NR

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